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3A828676305.jsonld | ['Contributions to enterprise content management and qualitative and quantitative decision support'] | ['Enterprise content management (ECM), decision support, decision support system (DSS), optimization, car sharing, green IS, reference model, survey research, nexus of forces, IS governance, grounded theory. - Entscheidungsunterstützung, Entscheidungsunterstützungssystem, Optimierung, Referenzmodellierung, Umfrageforschung'] | ['gnd:1080540911', 'gnd:4072806-7', 'gnd:4114012-6', 'gnd:4121202-2', 'gnd:4192516-6', 'gnd:4395694-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A828676305'] | ['Rickenberg, Tim A.', 'Informationssystem', 'Informationsmanagement', 'Entscheidungsprozess', 'Datenmodell', 'Grounded theory'] | Document
### Title: ['Contributions to enterprise content management and qualitative and quantitative decision support']
### Abstract:
['Enterprise content management (ECM), decision support, decision support system (DSS), optimization, car sharing, green IS, reference model, survey research, nexus of forces, IS governance, grounded theory. - Entscheidungsunterstützung, Entscheidungsunterstützungssystem, Optimierung, Referenzmodellierung, Umfrageforschung']
### GND ID:
['gnd:1080540911', 'gnd:4072806-7', 'gnd:4114012-6', 'gnd:4121202-2', 'gnd:4192516-6', 'gnd:4395694-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A828676305']
### GND class:
['Rickenberg, Tim A.', 'Informationssystem', 'Informationsmanagement', 'Entscheidungsprozess', 'Datenmodell', 'Grounded theory']
<|eot_id|> |
3A829055185.jsonld | ['Formation of ternary oxides in the gas phase : mass spectrometric and quantum chemical investigation'] | ['Gaseous ternary oxides, mass spectrometry, quantum chemical calculations. - Gasförmige ternäre Oxide, Massenspektrometrie, quantenchemische Berechnungen'] | ['gnd:1075201543', 'gnd:4056693-6', 'gnd:4126202-5', 'gnd:4156038-3', 'gnd:4184773-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A829055185'] | ['Kunkel, Katerina Alexandrovna', 'Stabilität', 'Oxide', 'Gasphase', 'Ternäre Verbindungen'] | Document
### Title: ['Formation of ternary oxides in the gas phase : mass spectrometric and quantum chemical investigation']
### Abstract:
['Gaseous ternary oxides, mass spectrometry, quantum chemical calculations. - Gasförmige ternäre Oxide, Massenspektrometrie, quantenchemische Berechnungen']
### GND ID:
['gnd:1075201543', 'gnd:4056693-6', 'gnd:4126202-5', 'gnd:4156038-3', 'gnd:4184773-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A829055185']
### GND class:
['Kunkel, Katerina Alexandrovna', 'Stabilität', 'Oxide', 'Gasphase', 'Ternäre Verbindungen']
<|eot_id|> |
3A829078320.jsonld | ['Der Einfluss arbuskulärer Mykorrhiza auf Euphorbia pulcherrima und Petunia x hybrida unter Kühlestress'] | ['Arbuskuläre Mykorrhiza, Kühlestress, Kohlenhydrathaushalt, Phytohormone, Transkriptom, Pythium ultimum, Botrytis cinerea. - Arbuscular mycorrhiza, chilling stress, carbohydrate metabolism, phytohormones, transcriptome'] | ['gnd:4067765-5', 'gnd:4207185-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A829078320'] | ['Zierpflanzenbau', 'VA-Mykorrhiza'] | Document
### Title: ['Der Einfluss arbuskulärer Mykorrhiza auf Euphorbia pulcherrima und Petunia x hybrida unter Kühlestress']
### Abstract:
['Arbuskuläre Mykorrhiza, Kühlestress, Kohlenhydrathaushalt, Phytohormone, Transkriptom, Pythium ultimum, Botrytis cinerea. - Arbuscular mycorrhiza, chilling stress, carbohydrate metabolism, phytohormones, transcriptome']
### GND ID:
['gnd:4067765-5', 'gnd:4207185-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A829078320']
### GND class:
['Zierpflanzenbau', 'VA-Mykorrhiza']
<|eot_id|> |
3A83000744X.jsonld | ['Open cluster groups and complexes'] | ['It is generally agreed upon that stars typically form in open clusters and stellar associations, but little is known about the structure of the open cluster system. Do open clusters and stellar associations form isolated or do they prefer to form in groups and complexes? Open cluster groups and complexes could verify star forming regions to be larger than expected, which would explain the chemical homogeneity over large areas in the Galactic disk. They would also define an additional level in the hierarchy of star formation and could be used as tracers for the scales of fragmentation in giant molecular clouds? Furthermore, open cluster groups and complexes could affect Galactic dynamics and should be considered in investigations and simulations on the dynamical processes, such as radial migration, disc heating, differential rotation, kinematic resonances, and spiral structure. In the past decade there were a few studies on open cluster pairs (de La Fuente Marcos & de La Fuente Marcos 2009a,b,c) and on open cluster groups and complexe…'] | ['gnd:1073950328', 'gnd:4057364-3', 'gnd:4183143-3', 'gnd:4244900-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83000744X'] | ['Conrad, Claudia', 'Sternentstehung', 'Sternassoziation', 'Offener Sternhaufen'] | Document
### Title: ['Open cluster groups and complexes']
### Abstract:
['It is generally agreed upon that stars typically form in open clusters and stellar associations, but little is known about the structure of the open cluster system. Do open clusters and stellar associations form isolated or do they prefer to form in groups and complexes? Open cluster groups and complexes could verify star forming regions to be larger than expected, which would explain the chemical homogeneity over large areas in the Galactic disk. They would also define an additional level in the hierarchy of star formation and could be used as tracers for the scales of fragmentation in giant molecular clouds? Furthermore, open cluster groups and complexes could affect Galactic dynamics and should be considered in investigations and simulations on the dynamical processes, such as radial migration, disc heating, differential rotation, kinematic resonances, and spiral structure. In the past decade there were a few studies on open cluster pairs (de La Fuente Marcos & de La Fuente Marcos 2009a,b,c) and on open cluster groups and complexe…']
### GND ID:
['gnd:1073950328', 'gnd:4057364-3', 'gnd:4183143-3', 'gnd:4244900-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83000744X']
### GND class:
['Conrad, Claudia', 'Sternentstehung', 'Sternassoziation', 'Offener Sternhaufen']
<|eot_id|> |
3A830202404.jsonld | ['Information, strategic behavior and learning in games : an experimental analysis'] | ['The current doctoral thesis is comprised of three distinct papers with a unifying theme of studying human behavior in strategic environments of incomplete information. Each paper considers a particular manifestation of information guiding, shaping or in some other way, affecting human behavior when the environment is not known to the fullest extent. The general contribution of this work goes to the literature that originated in the second half of the last century with the works of such prominent economists as George Akerlof, Kenneth Arrow, Michael Spence, George Stigler, and is now usually referred to as the economics of information. The first paper takes the popular perspective on information by considering it a stock variable, that is, knowledge that can be used by players as a tool to achieve certain goals. Specifically, it investigates whether knowledgeable players can be better off than their uninformed opponents in a number of repeated 2x2 games of incomplete information. The second paper considers information as a flow variable by studying the relation between the amount of payoff feedback the choice of action provides and speed with which human subjects learn to play repeated 2x2 games of incomplete information. The third paper examines information as a screening protocol. It takes the well-established notion of conditional cooperation in the public goods game framework to see how sensitive the concept itself as well as its corollaries are to the type of information used to define them in the first place. The main research method used in all three papers is that of an economic laboratory experiment. The underlying theoretical framework relies on the modeling concepts from game theory and behavioral economics. Both parametric, including regression analysis, and non-parametric methods of statistical analysis are used. The first paper also uses computer simulation techniques.'] | ['gnd:1035672715', 'gnd:36164-1', 'gnd:4035408-8', 'gnd:4056243-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A830202404'] | ['Nikolaychuk, Olexandr', 'Friedrich-Schiller-Universität Jena', 'Lernen', 'Spieltheorie'] | Document
### Title: ['Information, strategic behavior and learning in games : an experimental analysis']
### Abstract:
['The current doctoral thesis is comprised of three distinct papers with a unifying theme of studying human behavior in strategic environments of incomplete information. Each paper considers a particular manifestation of information guiding, shaping or in some other way, affecting human behavior when the environment is not known to the fullest extent. The general contribution of this work goes to the literature that originated in the second half of the last century with the works of such prominent economists as George Akerlof, Kenneth Arrow, Michael Spence, George Stigler, and is now usually referred to as the economics of information. The first paper takes the popular perspective on information by considering it a stock variable, that is, knowledge that can be used by players as a tool to achieve certain goals. Specifically, it investigates whether knowledgeable players can be better off than their uninformed opponents in a number of repeated 2x2 games of incomplete information. The second paper considers information as a flow variable by studying the relation between the amount of payoff feedback the choice of action provides and speed with which human subjects learn to play repeated 2x2 games of incomplete information. The third paper examines information as a screening protocol. It takes the well-established notion of conditional cooperation in the public goods game framework to see how sensitive the concept itself as well as its corollaries are to the type of information used to define them in the first place. The main research method used in all three papers is that of an economic laboratory experiment. The underlying theoretical framework relies on the modeling concepts from game theory and behavioral economics. Both parametric, including regression analysis, and non-parametric methods of statistical analysis are used. The first paper also uses computer simulation techniques.']
### GND ID:
['gnd:1035672715', 'gnd:36164-1', 'gnd:4035408-8', 'gnd:4056243-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A830202404']
### GND class:
['Nikolaychuk, Olexandr', 'Friedrich-Schiller-Universität Jena', 'Lernen', 'Spieltheorie']
<|eot_id|> |
3A830233075.jsonld | ['Funktionalisiertes Graphen als multifunktionales Additiv und Nanofüllstoff für die Schmelzcompoundierung von Thermoplasten und thermoplastischen Elastomeren'] | [['Zusammenfassung: The present study addressed the production of multifunctional polymer nanocomposites of hitherto unknown material property profiles by incorporation of functionalized graphene (FGs) based on the thermal reduction of graphite oxide (TRGO). Transferring the outstanding intrinsic properties of graphene nanoplatelets on toughened, flame retardant polypropylene (PP-FR), polyamide 12 (PA 12) and polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) aimed at a simultaneous improvement of mechanical load capacity and electrical conductivity in addition to fire behavior and gas barrier properties of thermoplastics and thermoplastic elastomers. Furthermore, the influence of TRGO upon superstructure formation and the resulting properties was examined within the fabrication of all-PE/graphene hybrid nanocomposites.The reinforcing character of TRGO was evaluated by the use of conventional and recently developed commercial carbon additives within the formation of PP-FR-, PA 12- and SEBS-nanocomposites using common melt compounding techniques. In addition to expanded graphites EG 40 and EG 60, multi-layer graphenes MLG 250 and MLG 350 served as platelet-like reference fillers, owning decreasing particle sizes and remaining stacks of graphene nanosheets. Moreover, CB and CNTs were employed as well-known comparative carbon additives of spherical and tubular nanofiller morphology and varying aspect ratios, respectively.PP-FR coating with TRGO- and carbon dispersions as well as subsequent melt extrusion and injection molding succeeded to produce electrically conductive PP-FR nanocomposites of enhanced stiffness, which likewise offered improved flame retardancy. Thereby, the incorporation of TRGO accounted for highest modulus increase (+ 80 %) and the most efficient reduction of maximum heat release rate (- 74 %) at simultaneously enhanced electrical conductivity (1E-6 S/cm), which can be attributed to excellent FG dispersibility and the distinct formation of percolating TRGO network-like structures. MLG 350 and MLG 250 induced similar effects, although not reaching the range of absolute values achieved with TRGO due to poorer MLG exfoliation and dispersion performance. In contrast, the comparison of platelet-like fillers revealed that the incorporation of EG 60 and EG 40 offered significantly lower property synergies caused by insufficient graphite separation and the resulting formation of inhomogeneous microcomposites. Moreover, PP-FR nanocomposites ...', 'Zusammenfassung: Die Zielsetzung dieser Arbeit bestand in der Erzeugung multifunktional verstärkter Polymernanokomposite eines bislang unbekannten Materialeigenschaftsprofils durch Einarbeitung funktionalisierter Graphene (FGs) auf der Basis von thermisch reduziertem Graphitoxid (TRGO). Hierbei zielte die Übertragung der außergewöhnlichen Eigenschaften der Graphen-Nanoplättchen auf zähmodifiziertes, flammgeschütztes Polypropylen (PP-FR), Polyamid 12 (PA 12) und Polystyrol-b-Poly(Ethylen-co-Butylen)-b-Poly-styrol (SEBS) auf eine simultane Verbesserung der Mechanik, der elektrischen Leitfähigkeit und des Brand- oder Barriereverhaltens in Thermoplasten und thermoplastischen Elastomeren ab. Darüber hinaus wurde der Einfluss von TRGO auf die Überstrukturbildung und die Eigenschaften ternärer All-PE/Graphen-Hybridnanokomposite untersucht.Der verstärkende TRGO-Charakter wurde im Zuge der Kompositbildung durch Schmelzcompoundierung von PP-FR, PA 12 und SEBS anhand der vergleichenden Einarbeitung konventioneller, sowie in der Entwicklungsphase befindlicher, kommerzieller Kohlenstoffadditive evaluiert. Neben den expandierten Graphiten EG 40 und EG 60 dienten die Multilagengraphene MLG 250 und MLG 350 hierbei als plättchenförmige Referenzfüllstoffe mit einer in dieser Reihenfolge abnehmenden Partikelgröße und Graphenlagenzahl. Ferner kamen mit CNTs und CB auch Kohlenstofffüllstoffe mit zylindrischer und sphärischer Morphologie und abweichenden Aspektverhältnissen als gut erforschte Referenzsysteme zum Einsatz. Durch die Beschichtung von PP-FR mit TRGO- und Kohlenstoffdispersionen, sowie die anschließende Schmelzextrusion bei nachfolgendem Spritzguss, gelang es steifere, elektrisch leitfähige PP-FR-Nanokomposite mit optimierten Brandverhalten herzustellen. Die Einarbeitung von TRGO bewirkte hierbei den höchsten Modulzuwachs (+ 80 %) und die effizienteste Reduktion der maximalen Wärmeabgaberate im Brandfall (- 74 %) bei gleichzeitiger Erhöhung der Leitvermögens (1E-6 S/cm), und lässt sich auf die hervorragende Dispergierfähigkeit und die ausgeprägte Bildung perkolierender TRGO-Netzwerkstrukturen zurückführen. MLG 350 und MLG 250 zeigten ähnliche Effekte, erreichten aufgrund ihrer schlechteren Exfolierung aber dispersionsbedingt nicht den mit TRGO erzielten Absolutwertebereich. Im Vergleich plättchenförmiger Füllstoffe führte die Einarbeitung von EG 60 und EG 40 aufgrund der unzureichenden Graphitsepa ...']] | ['gnd:107282826X', 'gnd:4014162-7', 'gnd:4059844-5', 'gnd:4768127-5', 'gnd:7591667-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A830233075'] | ['Hofmann, Daniel Alexander', 'Elastomer', 'Thermoplast', 'Nanokomposit', 'Graphen'] | Document
### Title: ['Funktionalisiertes Graphen als multifunktionales Additiv und Nanofüllstoff für die Schmelzcompoundierung von Thermoplasten und thermoplastischen Elastomeren']
### Abstract:
[['Zusammenfassung: The present study addressed the production of multifunctional polymer nanocomposites of hitherto unknown material property profiles by incorporation of functionalized graphene (FGs) based on the thermal reduction of graphite oxide (TRGO). Transferring the outstanding intrinsic properties of graphene nanoplatelets on toughened, flame retardant polypropylene (PP-FR), polyamide 12 (PA 12) and polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) aimed at a simultaneous improvement of mechanical load capacity and electrical conductivity in addition to fire behavior and gas barrier properties of thermoplastics and thermoplastic elastomers. Furthermore, the influence of TRGO upon superstructure formation and the resulting properties was examined within the fabrication of all-PE/graphene hybrid nanocomposites.The reinforcing character of TRGO was evaluated by the use of conventional and recently developed commercial carbon additives within the formation of PP-FR-, PA 12- and SEBS-nanocomposites using common melt compounding techniques. In addition to expanded graphites EG 40 and EG 60, multi-layer graphenes MLG 250 and MLG 350 served as platelet-like reference fillers, owning decreasing particle sizes and remaining stacks of graphene nanosheets. Moreover, CB and CNTs were employed as well-known comparative carbon additives of spherical and tubular nanofiller morphology and varying aspect ratios, respectively.PP-FR coating with TRGO- and carbon dispersions as well as subsequent melt extrusion and injection molding succeeded to produce electrically conductive PP-FR nanocomposites of enhanced stiffness, which likewise offered improved flame retardancy. Thereby, the incorporation of TRGO accounted for highest modulus increase (+ 80 %) and the most efficient reduction of maximum heat release rate (- 74 %) at simultaneously enhanced electrical conductivity (1E-6 S/cm), which can be attributed to excellent FG dispersibility and the distinct formation of percolating TRGO network-like structures. MLG 350 and MLG 250 induced similar effects, although not reaching the range of absolute values achieved with TRGO due to poorer MLG exfoliation and dispersion performance. In contrast, the comparison of platelet-like fillers revealed that the incorporation of EG 60 and EG 40 offered significantly lower property synergies caused by insufficient graphite separation and the resulting formation of inhomogeneous microcomposites. Moreover, PP-FR nanocomposites ...', 'Zusammenfassung: Die Zielsetzung dieser Arbeit bestand in der Erzeugung multifunktional verstärkter Polymernanokomposite eines bislang unbekannten Materialeigenschaftsprofils durch Einarbeitung funktionalisierter Graphene (FGs) auf der Basis von thermisch reduziertem Graphitoxid (TRGO). Hierbei zielte die Übertragung der außergewöhnlichen Eigenschaften der Graphen-Nanoplättchen auf zähmodifiziertes, flammgeschütztes Polypropylen (PP-FR), Polyamid 12 (PA 12) und Polystyrol-b-Poly(Ethylen-co-Butylen)-b-Poly-styrol (SEBS) auf eine simultane Verbesserung der Mechanik, der elektrischen Leitfähigkeit und des Brand- oder Barriereverhaltens in Thermoplasten und thermoplastischen Elastomeren ab. Darüber hinaus wurde der Einfluss von TRGO auf die Überstrukturbildung und die Eigenschaften ternärer All-PE/Graphen-Hybridnanokomposite untersucht.Der verstärkende TRGO-Charakter wurde im Zuge der Kompositbildung durch Schmelzcompoundierung von PP-FR, PA 12 und SEBS anhand der vergleichenden Einarbeitung konventioneller, sowie in der Entwicklungsphase befindlicher, kommerzieller Kohlenstoffadditive evaluiert. Neben den expandierten Graphiten EG 40 und EG 60 dienten die Multilagengraphene MLG 250 und MLG 350 hierbei als plättchenförmige Referenzfüllstoffe mit einer in dieser Reihenfolge abnehmenden Partikelgröße und Graphenlagenzahl. Ferner kamen mit CNTs und CB auch Kohlenstofffüllstoffe mit zylindrischer und sphärischer Morphologie und abweichenden Aspektverhältnissen als gut erforschte Referenzsysteme zum Einsatz. Durch die Beschichtung von PP-FR mit TRGO- und Kohlenstoffdispersionen, sowie die anschließende Schmelzextrusion bei nachfolgendem Spritzguss, gelang es steifere, elektrisch leitfähige PP-FR-Nanokomposite mit optimierten Brandverhalten herzustellen. Die Einarbeitung von TRGO bewirkte hierbei den höchsten Modulzuwachs (+ 80 %) und die effizienteste Reduktion der maximalen Wärmeabgaberate im Brandfall (- 74 %) bei gleichzeitiger Erhöhung der Leitvermögens (1E-6 S/cm), und lässt sich auf die hervorragende Dispergierfähigkeit und die ausgeprägte Bildung perkolierender TRGO-Netzwerkstrukturen zurückführen. MLG 350 und MLG 250 zeigten ähnliche Effekte, erreichten aufgrund ihrer schlechteren Exfolierung aber dispersionsbedingt nicht den mit TRGO erzielten Absolutwertebereich. Im Vergleich plättchenförmiger Füllstoffe führte die Einarbeitung von EG 60 und EG 40 aufgrund der unzureichenden Graphitsepa ...']]
### GND ID:
['gnd:107282826X', 'gnd:4014162-7', 'gnd:4059844-5', 'gnd:4768127-5', 'gnd:7591667-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A830233075']
### GND class:
['Hofmann, Daniel Alexander', 'Elastomer', 'Thermoplast', 'Nanokomposit', 'Graphen']
<|eot_id|> |
3A83023800X.jsonld | ['The processing of German Sign Language sentences : three event-related potential studies on phonological, morpho-syntactic, and semantic aspects'] | ['Sign languages have often been the subject of imaging studies investigating the underlying neural correlates of sign language processing. To the contrary, much less research has been conducted on the time-course of sign language processing. There are only a small number of event-related potential (ERP) studies that investigate semantic or morpho-syntactic anomalies in signed sentences. Due to specific properties of the manual-visual modality, sign languages differ from spoken languages in two respects: On the one hand, they are produced in a three-dimensional signing space, on the other han...'] | ['gnd:4129609-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83023800X'] | ['Gebärdensprache'] | Document
### Title: ['The processing of German Sign Language sentences : three event-related potential studies on phonological, morpho-syntactic, and semantic aspects']
### Abstract:
['Sign languages have often been the subject of imaging studies investigating the underlying neural correlates of sign language processing. To the contrary, much less research has been conducted on the time-course of sign language processing. There are only a small number of event-related potential (ERP) studies that investigate semantic or morpho-syntactic anomalies in signed sentences. Due to specific properties of the manual-visual modality, sign languages differ from spoken languages in two respects: On the one hand, they are produced in a three-dimensional signing space, on the other han...']
### GND ID:
['gnd:4129609-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83023800X']
### GND class:
['Gebärdensprache']
<|eot_id|> |
3A83104943X.jsonld | ['Late glacial to Holocene climate and vegetation changes on the Tibetan Plateau inferred from fossil pollen records in lacustrine sediments'] | ['The past climate in central Asia, and especially on the Tibetan Plateau (TP), is of great importance for an understanding of global climate processes and for predicting the future climate. As a major influence on the climate in this region, the Asian Summer Monsoon (ASM) and its evolutionary history are of vital importance for accurate predictions. However, neither the evolutionary pattern of the summer monsoon nor the driving mechanisms behind it are yet clearly understood. For this research, I first synthesized previously published Late Glacial to Holocene climatic records from monsoonal central Asia in order to extract the general climate signals and the associated summer monsoon intensities. New climate and vegetation sequences were then established using improved quantitative methods, focusing on fossil pollen records recovered from Tibetan lakes and also incorporating new modern datasets. The pollen-vegetation and vegetation-climate relationships on the TP were also evaluated in order to achieve a better understanding of fossil pollen records. The synthesis of previously published moisture-related palaeoclimate records in monsoonal central Asia revealed generally different temporal patterns for the two monsoonal subsystems, i.e. the Indian Summer Monsoon (ISM) and East Asian Summer Monsoon (EASM). The ISM appears to have experienced maximum wet conditions during the early Holocene, while many records from the area affected by the EASM indicate relatively dry conditions at that time, particularly in north-central China where the maximum moisture levels occurred during the middle Holocene. A detailed consideration of possible driving factors affecting the summer monsoon, including summer solar insolation and sea surface temperatures, revealed that the ISM was primarily driven by variations in northern hemisphere solar insolation, and that the EASM may have been constrained by the ISM resulting in asynchronous patterns of evolution for these two subsystems. This hypothesis is further supported by modern monsoon indices estimated using the NCEP/NCAR Reanalysis data from the last 50 years, which indicate a significant negative correlation between the two summer monsoon subsystems. By analogy with the early Holocene, intensification of the ISM during coming decades could lead to increased aridification elsewhere as a result of the asynchronous nature of the monsoon subsystems, as can already be observed in the meteorological data from the last 15 years. A quantitative climate reconstruction using fossil pollen records was achieved through analysis of sediment core recovered from Lake Donggi Cona (in the north-eastern part of the TP) which has been dated back to the Last Glacial Maximum (LGM). A new data-set of modern pollen collected from large lakes in arid to semi-arid regions of central Asia is also presented herein. The concept of "pollen source area" was introduced to modern climate calibration based on pollen from large lakes, and was applied to the fossil pollen sequence from Lake Donggi Cona. Extremely dry conditions were found to have dominated the LGM, and a subsequent gradually increasing trend in moisture during the Late Glacial period was terminated by an abrupt reversion to a dry phase that lasted for about 1000 years and coincided with the first Heinrich Event of the northern Atlantic region. Subsequent periods corresponding to the warm Bølling-Allerød period and the Younger Dryas cold event were followed by moist conditions during the early Holocene, with annual precipitation of up to about 400 mm. A slightly drier trend after 9 cal ka BP was then followed by a second wet phase during the middle Holocene that lasted until 4.5 cal ka BP. Relatively steady conditions with only slight fluctuations then dominated the late Holocene, resulting in the present climatic conditions. In order to investigate the relationship between vegetation and climate, temporal variations in the possible driving factors for vegetation change on the northern TP were examined using a high resolution late Holocene pollen record from Lake Kusai. Moving-window Redundancy Analyses (RDAs) were used to evaluate the correlations between pollen assemblages and individual sedimentary proxies. These analyses have revealed frequent fluctuations in the relative abundances of alpine steppe and alpine desert components, and in particular a decrease in the total vegetation cover at around 1500 cal a BP. The climate was found to have had an important influence on vegetation changes when conditions were relatively wet and stable. However, after the 1500 cal a BP threshold in vegetation cover was crossed the vegetation appears to have been affected more by extreme events such as dust storms or fluvial erosion than by the general climatic trends. In addition, pollen spectra over the last 600 years have been revealed by Procrustes analysis to be significantly different from those recovered from older samples, which is attributed to an increased human impact that resulted in unprecedented changes to the composition of the vegetation. Theoretical models that have been developed and widely applied to the European area (i.e. the Extended R-Value (ERV) model and the Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model) have been applied to the high alpine TP ecosystems in order to investigate the pollen-vegetation relationships, as well as for quantitative reconstructions of vegetation abundance. The modern pollen–vegetation relationships for four common pollen species on the TP have been investigated using Poaceae as the reference taxa. The ERV Submodel 2 yielded relatively high PPEs for the steppe and desert taxa (Artemisia Chenopodiaceae), and low PPEs for the Cyperaceae that are characteristic of the alpine Kobresia meadows. The plant abundances on the central and north-eastern TP were quantified by applying these PPEs to four post-Late Glacial fossil pollen sequences. The reconstructed vegetation assemblages for the four pollen sequences always yielded smaller compositional species turnovers than suggested by the pollen spectra, indicating that the strength of the previously-reported vegetation changes may therefore have been overestimated. In summary, the key findings of this thesis are that (a) the two ASM subsystems show asynchronous patterns during both the Holocene and modern time periods, (b) fossil pollen records from large lakes reflect regional signals for which the pollen source areas need to be taken into account, (c) climate is not always the main driver for vegetation change, and (d) previously reported vegetation changes on the TP may have been overestimated because they ignored inter-species variations in pollen productivity'] | ['gnd:1074045254', 'gnd:2120681-8', 'gnd:4046629-2', 'gnd:4095373-7', 'gnd:4160492-1', 'gnd:4180674-8', 'gnd:4182018-6', 'gnd:4288494-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83104943X'] | ['Wang, Yongbo', 'Universität Potsdam', 'Pollenanalyse', 'Hochland von Tibet', 'Holozän', 'Seesediment', 'Spätglazial', 'Paläoklima'] | Document
### Title: ['Late glacial to Holocene climate and vegetation changes on the Tibetan Plateau inferred from fossil pollen records in lacustrine sediments']
### Abstract:
['The past climate in central Asia, and especially on the Tibetan Plateau (TP), is of great importance for an understanding of global climate processes and for predicting the future climate. As a major influence on the climate in this region, the Asian Summer Monsoon (ASM) and its evolutionary history are of vital importance for accurate predictions. However, neither the evolutionary pattern of the summer monsoon nor the driving mechanisms behind it are yet clearly understood. For this research, I first synthesized previously published Late Glacial to Holocene climatic records from monsoonal central Asia in order to extract the general climate signals and the associated summer monsoon intensities. New climate and vegetation sequences were then established using improved quantitative methods, focusing on fossil pollen records recovered from Tibetan lakes and also incorporating new modern datasets. The pollen-vegetation and vegetation-climate relationships on the TP were also evaluated in order to achieve a better understanding of fossil pollen records. The synthesis of previously published moisture-related palaeoclimate records in monsoonal central Asia revealed generally different temporal patterns for the two monsoonal subsystems, i.e. the Indian Summer Monsoon (ISM) and East Asian Summer Monsoon (EASM). The ISM appears to have experienced maximum wet conditions during the early Holocene, while many records from the area affected by the EASM indicate relatively dry conditions at that time, particularly in north-central China where the maximum moisture levels occurred during the middle Holocene. A detailed consideration of possible driving factors affecting the summer monsoon, including summer solar insolation and sea surface temperatures, revealed that the ISM was primarily driven by variations in northern hemisphere solar insolation, and that the EASM may have been constrained by the ISM resulting in asynchronous patterns of evolution for these two subsystems. This hypothesis is further supported by modern monsoon indices estimated using the NCEP/NCAR Reanalysis data from the last 50 years, which indicate a significant negative correlation between the two summer monsoon subsystems. By analogy with the early Holocene, intensification of the ISM during coming decades could lead to increased aridification elsewhere as a result of the asynchronous nature of the monsoon subsystems, as can already be observed in the meteorological data from the last 15 years. A quantitative climate reconstruction using fossil pollen records was achieved through analysis of sediment core recovered from Lake Donggi Cona (in the north-eastern part of the TP) which has been dated back to the Last Glacial Maximum (LGM). A new data-set of modern pollen collected from large lakes in arid to semi-arid regions of central Asia is also presented herein. The concept of "pollen source area" was introduced to modern climate calibration based on pollen from large lakes, and was applied to the fossil pollen sequence from Lake Donggi Cona. Extremely dry conditions were found to have dominated the LGM, and a subsequent gradually increasing trend in moisture during the Late Glacial period was terminated by an abrupt reversion to a dry phase that lasted for about 1000 years and coincided with the first Heinrich Event of the northern Atlantic region. Subsequent periods corresponding to the warm Bølling-Allerød period and the Younger Dryas cold event were followed by moist conditions during the early Holocene, with annual precipitation of up to about 400 mm. A slightly drier trend after 9 cal ka BP was then followed by a second wet phase during the middle Holocene that lasted until 4.5 cal ka BP. Relatively steady conditions with only slight fluctuations then dominated the late Holocene, resulting in the present climatic conditions. In order to investigate the relationship between vegetation and climate, temporal variations in the possible driving factors for vegetation change on the northern TP were examined using a high resolution late Holocene pollen record from Lake Kusai. Moving-window Redundancy Analyses (RDAs) were used to evaluate the correlations between pollen assemblages and individual sedimentary proxies. These analyses have revealed frequent fluctuations in the relative abundances of alpine steppe and alpine desert components, and in particular a decrease in the total vegetation cover at around 1500 cal a BP. The climate was found to have had an important influence on vegetation changes when conditions were relatively wet and stable. However, after the 1500 cal a BP threshold in vegetation cover was crossed the vegetation appears to have been affected more by extreme events such as dust storms or fluvial erosion than by the general climatic trends. In addition, pollen spectra over the last 600 years have been revealed by Procrustes analysis to be significantly different from those recovered from older samples, which is attributed to an increased human impact that resulted in unprecedented changes to the composition of the vegetation. Theoretical models that have been developed and widely applied to the European area (i.e. the Extended R-Value (ERV) model and the Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model) have been applied to the high alpine TP ecosystems in order to investigate the pollen-vegetation relationships, as well as for quantitative reconstructions of vegetation abundance. The modern pollen–vegetation relationships for four common pollen species on the TP have been investigated using Poaceae as the reference taxa. The ERV Submodel 2 yielded relatively high PPEs for the steppe and desert taxa (Artemisia Chenopodiaceae), and low PPEs for the Cyperaceae that are characteristic of the alpine Kobresia meadows. The plant abundances on the central and north-eastern TP were quantified by applying these PPEs to four post-Late Glacial fossil pollen sequences. The reconstructed vegetation assemblages for the four pollen sequences always yielded smaller compositional species turnovers than suggested by the pollen spectra, indicating that the strength of the previously-reported vegetation changes may therefore have been overestimated. In summary, the key findings of this thesis are that (a) the two ASM subsystems show asynchronous patterns during both the Holocene and modern time periods, (b) fossil pollen records from large lakes reflect regional signals for which the pollen source areas need to be taken into account, (c) climate is not always the main driver for vegetation change, and (d) previously reported vegetation changes on the TP may have been overestimated because they ignored inter-species variations in pollen productivity']
### GND ID:
['gnd:1074045254', 'gnd:2120681-8', 'gnd:4046629-2', 'gnd:4095373-7', 'gnd:4160492-1', 'gnd:4180674-8', 'gnd:4182018-6', 'gnd:4288494-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83104943X']
### GND class:
['Wang, Yongbo', 'Universität Potsdam', 'Pollenanalyse', 'Hochland von Tibet', 'Holozän', 'Seesediment', 'Spätglazial', 'Paläoklima']
<|eot_id|> |
3A831858958.jsonld | ['Soziale Elite und Christentum : Studien zu ordo-Angehörigen unter den frühen Christen'] | ['The notion that early Christianity was a "lower class religion" is surely outdated. Yet the extent to which members of the social elites turned to the new faith remains a matter of intense scholarly dispute. Many researchers argued against the idea that the social elites were already represented among early Christians. However, the sources give extensive evidence that senators and local officials were among the Christians of the 1st century CE.'] | ['gnd:173675549', 'gnd:4014457-4', 'gnd:4076778-4', 'gnd:4129954-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A831858958'] | ['Weiß, Alexander', 'Elite', 'Römisches Reich', 'Frühchristentum'] | Document
### Title: ['Soziale Elite und Christentum : Studien zu ordo-Angehörigen unter den frühen Christen']
### Abstract:
['The notion that early Christianity was a "lower class religion" is surely outdated. Yet the extent to which members of the social elites turned to the new faith remains a matter of intense scholarly dispute. Many researchers argued against the idea that the social elites were already represented among early Christians. However, the sources give extensive evidence that senators and local officials were among the Christians of the 1st century CE.']
### GND ID:
['gnd:173675549', 'gnd:4014457-4', 'gnd:4076778-4', 'gnd:4129954-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A831858958']
### GND class:
['Weiß, Alexander', 'Elite', 'Römisches Reich', 'Frühchristentum']
<|eot_id|> |
3A831993995.jsonld | ['Quantification of total microbial biomass and metabolic activity in subsurface sediments'] | ["Metabolically active microbial communities are present in a wide range of subsurface environments. Techniques like enumeration of microbial cells, activity measurements with radiotracer assays and the analysis of porewater constituents are currently being used to explore the subsurface biosphere, alongside with molecular biological analyses. However, many of these techniques reach their detection limits due to low microbial activity and abundance. Direct measurements of microbial turnover not just face issues of insufficient sensitivity, they only provide information about a single specific process but in sediments many different process can occur simultaneously. Therefore, the development of a new technique to measure total microbial activity would be a major improvement. A new tritium-based hydrogenase-enzyme assay appeared to be a promising tool to quantify total living biomass, even in low activity subsurface environments. In this PhD project total microbial biomass and microbial activity was quantified in different subsurface sediments using established techniques (cell enumeration and pore water geochemistry) as well as a new tritium-based hydrogenase enzyme assay. By using a large database of our own cell enumeration data from equatorial Pacific and north Pacific sediments and published data it was shown that the global geographic distribution of subseafloor sedimentary microbes varies between sites by 5 to 6 orders of magnitude and correlates with the sedimentation rate and distance from land. Based on these correlations, global subseafloor biomass was estimated to be 4.1 petagram-C and ~0.6 % of Earth's total living biomass, which is significantly lower than previous estimates. Despite the massive reduction in biomass the subseafloor biosphere is still an important player in global biogeochemical cycles. To understand the relationship between microbial activity, abundance and organic matter flux into the sediment an expedition to the equatorial Pacific upwelling area and the north Pacific Gyre was carried out. Oxygen respiration rates in subseafloor sediments from the north Pacific Gyre, which are deposited at sedimentation rates of 1 mm per 1000 years, showed that microbial communities could survive for millions of years without fresh supply of organic carbon. Contrary to the north Pacific Gyre oxygen was completely depleted within the upper few millimeters to centimeters in sediments of the equatorial upwelling region due to a higher supply of organic matter and higher metabolic activity. So occurrence and variability of electron acceptors over depth and sites make the subsurface a complex environment for the quantification of total microbial activity. Recent studies showed that electron acceptor processes, which were previously thought to thermodynamically exclude each other can occur simultaneously. So in many cases a simple measure of the total microbial activity would be a better and more robust solution than assays for several specific processes, for example sulfate reduction rates or methanogenesis. Enzyme or molecular assays provide a more general approach as they target key metabolic compounds. Since hydrogenase enzymes are ubiquitous in microbes, the recently developed tritium-based hydrogenase radiotracer assay is applied to quantify hydrogenase enzyme activity as a parameter of total living cell activity. Hydrogenase enzyme activity was measured in sediments from different locations (Lake Van, Barents Sea, Equatorial Pacific and Gulf of Mexico). In sediment samples that contained nitrate, we found the lowest cell specific enzyme activity around 10^(-5) nmol H_(2) cell^(-1) d^(-1). With decreasing energy yield of the electron acceptor used, cell-specific hydrogenase activity increased and maximum values of up to 1 nmol H_(2) cell^(-1) d^(-1) were found in samples with methane concentrations of >10 ppm. Although hydrogenase activity cannot be converted directly into a turnover rate of a specific process, cell-specific activity factors can be used to identify specific metabolism and to quantify the metabolically active microbial population. In another study on sediments from the Nankai Trough microbial abundance and hydrogenase activity data show that both the habitat and the activity of subseafloor sedimentary microbial communities have been impacted by seismic activities. An increase in hydrogenase activity near the fault zone revealed that the microbial community was supplied with hydrogen as an energy source and that the microbes were specialized to hydrogen metabolism"] | ['gnd:1074039513', 'gnd:2120681-8', 'gnd:4132389-0', 'gnd:4140407-5', 'gnd:4156734-1', 'gnd:4160910-4', 'gnd:4186243-0', 'gnd:4354995-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A831993995'] | ['Adhikari, Rishi Ram', 'Universität Potsdam', 'Geosphäre', 'Biosphäre', 'Geomikrobiologie', 'Hydrogenasen', 'Tritium', 'Untergrund (Bodenkunde)'] | Document
### Title: ['Quantification of total microbial biomass and metabolic activity in subsurface sediments']
### Abstract:
["Metabolically active microbial communities are present in a wide range of subsurface environments. Techniques like enumeration of microbial cells, activity measurements with radiotracer assays and the analysis of porewater constituents are currently being used to explore the subsurface biosphere, alongside with molecular biological analyses. However, many of these techniques reach their detection limits due to low microbial activity and abundance. Direct measurements of microbial turnover not just face issues of insufficient sensitivity, they only provide information about a single specific process but in sediments many different process can occur simultaneously. Therefore, the development of a new technique to measure total microbial activity would be a major improvement. A new tritium-based hydrogenase-enzyme assay appeared to be a promising tool to quantify total living biomass, even in low activity subsurface environments. In this PhD project total microbial biomass and microbial activity was quantified in different subsurface sediments using established techniques (cell enumeration and pore water geochemistry) as well as a new tritium-based hydrogenase enzyme assay. By using a large database of our own cell enumeration data from equatorial Pacific and north Pacific sediments and published data it was shown that the global geographic distribution of subseafloor sedimentary microbes varies between sites by 5 to 6 orders of magnitude and correlates with the sedimentation rate and distance from land. Based on these correlations, global subseafloor biomass was estimated to be 4.1 petagram-C and ~0.6 % of Earth's total living biomass, which is significantly lower than previous estimates. Despite the massive reduction in biomass the subseafloor biosphere is still an important player in global biogeochemical cycles. To understand the relationship between microbial activity, abundance and organic matter flux into the sediment an expedition to the equatorial Pacific upwelling area and the north Pacific Gyre was carried out. Oxygen respiration rates in subseafloor sediments from the north Pacific Gyre, which are deposited at sedimentation rates of 1 mm per 1000 years, showed that microbial communities could survive for millions of years without fresh supply of organic carbon. Contrary to the north Pacific Gyre oxygen was completely depleted within the upper few millimeters to centimeters in sediments of the equatorial upwelling region due to a higher supply of organic matter and higher metabolic activity. So occurrence and variability of electron acceptors over depth and sites make the subsurface a complex environment for the quantification of total microbial activity. Recent studies showed that electron acceptor processes, which were previously thought to thermodynamically exclude each other can occur simultaneously. So in many cases a simple measure of the total microbial activity would be a better and more robust solution than assays for several specific processes, for example sulfate reduction rates or methanogenesis. Enzyme or molecular assays provide a more general approach as they target key metabolic compounds. Since hydrogenase enzymes are ubiquitous in microbes, the recently developed tritium-based hydrogenase radiotracer assay is applied to quantify hydrogenase enzyme activity as a parameter of total living cell activity. Hydrogenase enzyme activity was measured in sediments from different locations (Lake Van, Barents Sea, Equatorial Pacific and Gulf of Mexico). In sediment samples that contained nitrate, we found the lowest cell specific enzyme activity around 10^(-5) nmol H_(2) cell^(-1) d^(-1). With decreasing energy yield of the electron acceptor used, cell-specific hydrogenase activity increased and maximum values of up to 1 nmol H_(2) cell^(-1) d^(-1) were found in samples with methane concentrations of >10 ppm. Although hydrogenase activity cannot be converted directly into a turnover rate of a specific process, cell-specific activity factors can be used to identify specific metabolism and to quantify the metabolically active microbial population. In another study on sediments from the Nankai Trough microbial abundance and hydrogenase activity data show that both the habitat and the activity of subseafloor sedimentary microbial communities have been impacted by seismic activities. An increase in hydrogenase activity near the fault zone revealed that the microbial community was supplied with hydrogen as an energy source and that the microbes were specialized to hydrogen metabolism"]
### GND ID:
['gnd:1074039513', 'gnd:2120681-8', 'gnd:4132389-0', 'gnd:4140407-5', 'gnd:4156734-1', 'gnd:4160910-4', 'gnd:4186243-0', 'gnd:4354995-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A831993995']
### GND class:
['Adhikari, Rishi Ram', 'Universität Potsdam', 'Geosphäre', 'Biosphäre', 'Geomikrobiologie', 'Hydrogenasen', 'Tritium', 'Untergrund (Bodenkunde)']
<|eot_id|> |
3A832003530.jsonld | ['Investigations on mobility of carbon colloid supported nanoscale zero-valent iron (nZVI) for groundwater remediation'] | ['Injection of nanoscale zero-valent iron (nZVI) is an innovative technology for in situ installation of a permeable reactive barrier in the subsurface. Zerovalent iron (ZVI) is highly reactive with chlorinated hydrocarbons (CHCs) and renders them into less harmful substances. Application of nZVI instead of granular ZVI can increase rates of dechlorination of CHCs by orders of magnitude, due to its higher surface area. This approach is still difficult to apply due to fast agglomeration and sedimentation of colloidal suspensions of nZVI, which leads to very short transport distances. To overcome this issue of limited mobility, polyanionic stabilisers are added to increase surface charge and stability of suspensions. In field experiments maximum transport distances of a few metres were achieved. A new approach, which is investigated in this thesis, is enhanced mobility of nZVI by a more mobile carrier colloid. The investigated composite material consists of activated carbon, which is loaded with nZVI. In this cumulative thesis, transport characteristics of carbon-colloid supported nZVI (c-nZVI) are investigated. Investigations started with column experiments in 40 cm columns filled with various porous media to investigate on physicochemical influences on transport characteristics. The experimental setup was enlarged to a transport experiment in a 1.2-m-sized two-dimensional aquifer tank experiment, which was filled with granular porous media. Further, a field experiment was performed in a natural aquifer system with a targeted transport distance of 5.3 m. Parallel to these investigations, alternative methods for transport observations were investigated by using noninvasive tomographic methods. Experiments using synchrotron radiation and magnetic resonance (MRI) were performed to investigate in situ transport characteristics in a non-destructive way. Results from column experiments show potentially high mobility under environmental relevant conditions. Addition of mono-and bivalent salts, e.g. more than 0.5 mM/L CaCl2, might decrease mobility. Changes in pH to values below 6 can inhibit mobility at all. Measurements of colloid size show changes in the mean particle size by a factor of ten. Measurements of zeta potential revealed an increase of –62 mV to –82 mV. Results from the 2D-aquifer test system suggest strong particle deposition in the first centimetres and only weak straining in the further travel path and no gravitational influence on particle transport. Straining at the beginning of the travel path in the porous medium was observed with tomographic investigations of transport. MRI experiments revealed similar results to the previous experiments, and observations using synchrotron radiation suggest straining of colloids at pore throats. The potential for high transport distances, which was suggested from laboratory experiments, was confirmed in the field experiment, where the transport distance of 5.3 m was reached by at least 10% of injected nZVI. Altogether, transport distances of the investigated carbon-colloid supported nZVI are higher than published results of traditional nZVI'] | ['gnd:1074044975', 'gnd:121359484', 'gnd:4135804-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832003530'] | ['Busch, Jan', 'Oswald, Sascha', 'Altlastsanierung'] | Document
### Title: ['Investigations on mobility of carbon colloid supported nanoscale zero-valent iron (nZVI) for groundwater remediation']
### Abstract:
['Injection of nanoscale zero-valent iron (nZVI) is an innovative technology for in situ installation of a permeable reactive barrier in the subsurface. Zerovalent iron (ZVI) is highly reactive with chlorinated hydrocarbons (CHCs) and renders them into less harmful substances. Application of nZVI instead of granular ZVI can increase rates of dechlorination of CHCs by orders of magnitude, due to its higher surface area. This approach is still difficult to apply due to fast agglomeration and sedimentation of colloidal suspensions of nZVI, which leads to very short transport distances. To overcome this issue of limited mobility, polyanionic stabilisers are added to increase surface charge and stability of suspensions. In field experiments maximum transport distances of a few metres were achieved. A new approach, which is investigated in this thesis, is enhanced mobility of nZVI by a more mobile carrier colloid. The investigated composite material consists of activated carbon, which is loaded with nZVI. In this cumulative thesis, transport characteristics of carbon-colloid supported nZVI (c-nZVI) are investigated. Investigations started with column experiments in 40 cm columns filled with various porous media to investigate on physicochemical influences on transport characteristics. The experimental setup was enlarged to a transport experiment in a 1.2-m-sized two-dimensional aquifer tank experiment, which was filled with granular porous media. Further, a field experiment was performed in a natural aquifer system with a targeted transport distance of 5.3 m. Parallel to these investigations, alternative methods for transport observations were investigated by using noninvasive tomographic methods. Experiments using synchrotron radiation and magnetic resonance (MRI) were performed to investigate in situ transport characteristics in a non-destructive way. Results from column experiments show potentially high mobility under environmental relevant conditions. Addition of mono-and bivalent salts, e.g. more than 0.5 mM/L CaCl2, might decrease mobility. Changes in pH to values below 6 can inhibit mobility at all. Measurements of colloid size show changes in the mean particle size by a factor of ten. Measurements of zeta potential revealed an increase of –62 mV to –82 mV. Results from the 2D-aquifer test system suggest strong particle deposition in the first centimetres and only weak straining in the further travel path and no gravitational influence on particle transport. Straining at the beginning of the travel path in the porous medium was observed with tomographic investigations of transport. MRI experiments revealed similar results to the previous experiments, and observations using synchrotron radiation suggest straining of colloids at pore throats. The potential for high transport distances, which was suggested from laboratory experiments, was confirmed in the field experiment, where the transport distance of 5.3 m was reached by at least 10% of injected nZVI. Altogether, transport distances of the investigated carbon-colloid supported nZVI are higher than published results of traditional nZVI']
### GND ID:
['gnd:1074044975', 'gnd:121359484', 'gnd:4135804-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832003530']
### GND class:
['Busch, Jan', 'Oswald, Sascha', 'Altlastsanierung']
<|eot_id|> |
3A832003689.jsonld | ['Investigations on mobility of carbon colloid supported nanoscale zero-valent iron (nZVI) for groundwater remediation'] | ['Injection of nanoscale zero-valent iron (nZVI) is an innovative technology for in situ installation of a permeable reactive barrier in the subsurface. Zerovalent iron (ZVI) is highly reactive with chlorinated hydrocarbons (CHCs) and renders them into less harmful substances. Application of nZVI instead of granular ZVI can increase rates of dechlorination of CHCs by orders of magnitude, due to its higher surface area. This approach is still difficult to apply due to fast agglomeration and sedimentation of colloidal suspensions of nZVI, which leads to very short transport distances. To overcome this issue of limited mobility, polyanionic stabilisers are added to increase surface charge and stability of suspensions. In field experiments maximum transport distances of a few metres were achieved. A new approach, which is investigated in this thesis, is enhanced mobility of nZVI by a more mobile carrier colloid. The investigated composite material consists of activated carbon, which is loaded with nZVI. In this cumulative thesis, transport characteristics of carbon-colloid supported nZVI (c-nZVI) are investigated. Investigations started with column experiments in 40 cm columns filled with various porous media to investigate on physicochemical influences on transport characteristics. The experimental setup was enlarged to a transport experiment in a 1.2-m-sized two-dimensional aquifer tank experiment, which was filled with granular porous media. Further, a field experiment was performed in a natural aquifer system with a targeted transport distance of 5.3 m. Parallel to these investigations, alternative methods for transport observations were investigated by using noninvasive tomographic methods. Experiments using synchrotron radiation and magnetic resonance (MRI) were performed to investigate in situ transport characteristics in a non-destructive way. Results from column experiments show potentially high mobility under environmental relevant conditions. Addition of mono-and bivalent salts, e.g. more than 0.5 mM/L CaCl2, might decrease mobility. Changes in pH to values below 6 can inhibit mobility at all. Measurements of colloid size show changes in the mean particle size by a factor of ten. Measurements of zeta potential revealed an increase of –62 mV to –82 mV. Results from the 2D-aquifer test system suggest strong particle deposition in the first centimetres and only weak straining in the further travel path and no gravitational influence on particle transport. Straining at the beginning of the travel path in the porous medium was observed with tomographic investigations of transport. MRI experiments revealed similar results to the previous experiments, and observations using synchrotron radiation suggest straining of colloids at pore throats. The potential for high transport distances, which was suggested from laboratory experiments, was confirmed in the field experiment, where the transport distance of 5.3 m was reached by at least 10% of injected nZVI. Altogether, transport distances of the investigated carbon-colloid supported nZVI are higher than published results of traditional nZVI'] | ['gnd:1074044975', 'gnd:2120681-8', 'gnd:4135804-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832003689'] | ['Busch, Jan', 'Universität Potsdam', 'Altlastsanierung'] | Document
### Title: ['Investigations on mobility of carbon colloid supported nanoscale zero-valent iron (nZVI) for groundwater remediation']
### Abstract:
['Injection of nanoscale zero-valent iron (nZVI) is an innovative technology for in situ installation of a permeable reactive barrier in the subsurface. Zerovalent iron (ZVI) is highly reactive with chlorinated hydrocarbons (CHCs) and renders them into less harmful substances. Application of nZVI instead of granular ZVI can increase rates of dechlorination of CHCs by orders of magnitude, due to its higher surface area. This approach is still difficult to apply due to fast agglomeration and sedimentation of colloidal suspensions of nZVI, which leads to very short transport distances. To overcome this issue of limited mobility, polyanionic stabilisers are added to increase surface charge and stability of suspensions. In field experiments maximum transport distances of a few metres were achieved. A new approach, which is investigated in this thesis, is enhanced mobility of nZVI by a more mobile carrier colloid. The investigated composite material consists of activated carbon, which is loaded with nZVI. In this cumulative thesis, transport characteristics of carbon-colloid supported nZVI (c-nZVI) are investigated. Investigations started with column experiments in 40 cm columns filled with various porous media to investigate on physicochemical influences on transport characteristics. The experimental setup was enlarged to a transport experiment in a 1.2-m-sized two-dimensional aquifer tank experiment, which was filled with granular porous media. Further, a field experiment was performed in a natural aquifer system with a targeted transport distance of 5.3 m. Parallel to these investigations, alternative methods for transport observations were investigated by using noninvasive tomographic methods. Experiments using synchrotron radiation and magnetic resonance (MRI) were performed to investigate in situ transport characteristics in a non-destructive way. Results from column experiments show potentially high mobility under environmental relevant conditions. Addition of mono-and bivalent salts, e.g. more than 0.5 mM/L CaCl2, might decrease mobility. Changes in pH to values below 6 can inhibit mobility at all. Measurements of colloid size show changes in the mean particle size by a factor of ten. Measurements of zeta potential revealed an increase of –62 mV to –82 mV. Results from the 2D-aquifer test system suggest strong particle deposition in the first centimetres and only weak straining in the further travel path and no gravitational influence on particle transport. Straining at the beginning of the travel path in the porous medium was observed with tomographic investigations of transport. MRI experiments revealed similar results to the previous experiments, and observations using synchrotron radiation suggest straining of colloids at pore throats. The potential for high transport distances, which was suggested from laboratory experiments, was confirmed in the field experiment, where the transport distance of 5.3 m was reached by at least 10% of injected nZVI. Altogether, transport distances of the investigated carbon-colloid supported nZVI are higher than published results of traditional nZVI']
### GND ID:
['gnd:1074044975', 'gnd:2120681-8', 'gnd:4135804-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832003689']
### GND class:
['Busch, Jan', 'Universität Potsdam', 'Altlastsanierung']
<|eot_id|> |
3A832019399.jsonld | ['Das Siebenstromland zwischen Bronze- und Früheisenzeit : eine Regionalstudie'] | ['"The southeastern Land of Seven Rivers (Kazakhstan)--a small region in the Eurasian steppes--shows an enormous concentration of Bronze and early Iron Age archeological monuments, only a small fraction of which have been described by researchers. This study, the first comprehensive investigation of these monuments, also makes an important contribution to knowledge about the historical-cultural evolution of the region"--From publisher\'s website'] | ['gnd:1191772306', 'gnd:12190363X', 'gnd:4008357-3', 'gnd:4014102-0', 'gnd:4071507-3', 'gnd:4510129-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832019399'] | ['Gresky, Julia', 'Faßbinder, Jörg W. E.', 'Bronzezeit', 'Eisenzeit', 'Funde', 'Siebenstromland'] | Document
### Title: ['Das Siebenstromland zwischen Bronze- und Früheisenzeit : eine Regionalstudie']
### Abstract:
['"The southeastern Land of Seven Rivers (Kazakhstan)--a small region in the Eurasian steppes--shows an enormous concentration of Bronze and early Iron Age archeological monuments, only a small fraction of which have been described by researchers. This study, the first comprehensive investigation of these monuments, also makes an important contribution to knowledge about the historical-cultural evolution of the region"--From publisher\'s website']
### GND ID:
['gnd:1191772306', 'gnd:12190363X', 'gnd:4008357-3', 'gnd:4014102-0', 'gnd:4071507-3', 'gnd:4510129-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832019399']
### GND class:
['Gresky, Julia', 'Faßbinder, Jörg W. E.', 'Bronzezeit', 'Eisenzeit', 'Funde', 'Siebenstromland']
<|eot_id|> |
3A832334456.jsonld | ['Cosmic-ray neutron sensing for soil moisture measurements in cropped fields'] | ['This cumulative dissertation explored the use of the detection of natural background of fast neutrons, the so-called cosmic-ray neutron sensing (CRS) approach to measure field-scale soil moisture in cropped fields. Primary cosmic rays penetrate the top atmosphere and interact with atmospheric particles. Such interaction results on a cascade of high-energy neutrons, which continue traveling through the atmospheric column. Finally, neutrons penetrate the soil surface and a second cascade is produced with the so-called secondary cosmic-ray neutrons (fast neutrons). Partly, fast neutrons are absorbed by hydrogen (soil moisture). Remaining neutrons scatter back to the atmosphere, where its flux is inversely correlated to the soil moisture content, therefore allowing a non-invasive indirect measurement of soil moisture. The CRS methodology is mainly evaluated based on a field study carried out on a farmland in Potsdam (Brandenburg, Germany) along three crop seasons with corn, sunflower and winter rye; a bare soil period; and two winter periods. Also, field monitoring was carried out in the Schaefertal catchment (Harz, Germany) for long-term testing of CRS against ancillary data. In the first experimental site, the CRS method was calibrated and validated using different approaches of soil moisture measurements. In a period with corn, soil moisture measurement at the local scale was performed at near-surface only, and in subsequent periods (sunflower and winter rye) sensors were placed in three depths (5 cm, 20 cm and 40 cm). The direct transfer of CRS calibration parameters between two vegetation periods led to a large overestimation of soil moisture by the CRS. Part of this soil moisture overestimation was attributed to an underestimation of the CRS observation depth during the corn period ( 5-10 cm), which was later recalculated to values between 20-40 cm in other crop periods (sunflower and winter rye). According to results from these monitoring periods with different crops, vegetation played an important role on the CRS measurements. Water contained also in crop biomass, above and below ground, produces important neutron moderation. This effect was accounted for by a simple model for neutron corrections due to vegetation. It followed crop development and reduced overall CRS soil moisture error for periods of sunflower and winter rye. In Potsdam farmland also inversely-estimated soil hydraulic parameters were determined at the field scale, using CRS soil moisture from the sunflower period. A modelling framework coupling HYDRUS-1D and PEST was applied. Subsequently, field-scale soil hydraulic properties were compared against local scale soil properties (modelling and measurements). Successful results were obtained here, despite large difference in support volume. Simple modelling framework emphasizes future research directions with CRS soil moisture to parameterize field scale models. In Schaefertal catchment, CRS measurements were verified using precipitation and evapotranspiration data. At the monthly resolution, CRS soil water storage was well correlated to these two weather variables. Also clearly, water balance could not be closed due to missing information from other compartments such as groundwater, catchment discharge, etc. In the catchment, the snow influence to natural neutrons was also evaluated. As also observed in Potsdam farmland, CRS signal was strongly influenced by snow fall and snow accumulation. A simple strategy to measure snow was presented for Schaefertal case. Concluding remarks of this dissertation showed that (a) the cosmic-ray neutron sensing (CRS) has a strong potential to provide feasible measurement of mean soil moisture at the field scale in cropped fields; (b) CRS soil moisture is strongly influenced by other environmental water pools such as vegetation and snow, therefore these should be considered in analysis; (c) CRS water storage can be used for soil hydrology modelling for determination of soil hydraulic parameters; and (d) CRS approach has strong potential for long term monitoring of soil moisture and for addressing studies of water balance.'] | ['gnd:1074360311', 'gnd:121359484', 'gnd:2120681-8', 'gnd:4034434-4', 'gnd:4038852-9', 'gnd:4058056-8', 'gnd:4165371-3', 'gnd:4221352-6', 'gnd:4236526-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832334456'] | ['Rivera Villarreyes, Carlos Andres', 'Oswald, Sascha', 'Universität Potsdam', 'Feldversuch', 'Messung', 'Streuung', 'Kosmische Strahlung', 'Neutronenstrahlung', 'Bodenfeuchte'] | Document
### Title: ['Cosmic-ray neutron sensing for soil moisture measurements in cropped fields']
### Abstract:
['This cumulative dissertation explored the use of the detection of natural background of fast neutrons, the so-called cosmic-ray neutron sensing (CRS) approach to measure field-scale soil moisture in cropped fields. Primary cosmic rays penetrate the top atmosphere and interact with atmospheric particles. Such interaction results on a cascade of high-energy neutrons, which continue traveling through the atmospheric column. Finally, neutrons penetrate the soil surface and a second cascade is produced with the so-called secondary cosmic-ray neutrons (fast neutrons). Partly, fast neutrons are absorbed by hydrogen (soil moisture). Remaining neutrons scatter back to the atmosphere, where its flux is inversely correlated to the soil moisture content, therefore allowing a non-invasive indirect measurement of soil moisture. The CRS methodology is mainly evaluated based on a field study carried out on a farmland in Potsdam (Brandenburg, Germany) along three crop seasons with corn, sunflower and winter rye; a bare soil period; and two winter periods. Also, field monitoring was carried out in the Schaefertal catchment (Harz, Germany) for long-term testing of CRS against ancillary data. In the first experimental site, the CRS method was calibrated and validated using different approaches of soil moisture measurements. In a period with corn, soil moisture measurement at the local scale was performed at near-surface only, and in subsequent periods (sunflower and winter rye) sensors were placed in three depths (5 cm, 20 cm and 40 cm). The direct transfer of CRS calibration parameters between two vegetation periods led to a large overestimation of soil moisture by the CRS. Part of this soil moisture overestimation was attributed to an underestimation of the CRS observation depth during the corn period ( 5-10 cm), which was later recalculated to values between 20-40 cm in other crop periods (sunflower and winter rye). According to results from these monitoring periods with different crops, vegetation played an important role on the CRS measurements. Water contained also in crop biomass, above and below ground, produces important neutron moderation. This effect was accounted for by a simple model for neutron corrections due to vegetation. It followed crop development and reduced overall CRS soil moisture error for periods of sunflower and winter rye. In Potsdam farmland also inversely-estimated soil hydraulic parameters were determined at the field scale, using CRS soil moisture from the sunflower period. A modelling framework coupling HYDRUS-1D and PEST was applied. Subsequently, field-scale soil hydraulic properties were compared against local scale soil properties (modelling and measurements). Successful results were obtained here, despite large difference in support volume. Simple modelling framework emphasizes future research directions with CRS soil moisture to parameterize field scale models. In Schaefertal catchment, CRS measurements were verified using precipitation and evapotranspiration data. At the monthly resolution, CRS soil water storage was well correlated to these two weather variables. Also clearly, water balance could not be closed due to missing information from other compartments such as groundwater, catchment discharge, etc. In the catchment, the snow influence to natural neutrons was also evaluated. As also observed in Potsdam farmland, CRS signal was strongly influenced by snow fall and snow accumulation. A simple strategy to measure snow was presented for Schaefertal case. Concluding remarks of this dissertation showed that (a) the cosmic-ray neutron sensing (CRS) has a strong potential to provide feasible measurement of mean soil moisture at the field scale in cropped fields; (b) CRS soil moisture is strongly influenced by other environmental water pools such as vegetation and snow, therefore these should be considered in analysis; (c) CRS water storage can be used for soil hydrology modelling for determination of soil hydraulic parameters; and (d) CRS approach has strong potential for long term monitoring of soil moisture and for addressing studies of water balance.']
### GND ID:
['gnd:1074360311', 'gnd:121359484', 'gnd:2120681-8', 'gnd:4034434-4', 'gnd:4038852-9', 'gnd:4058056-8', 'gnd:4165371-3', 'gnd:4221352-6', 'gnd:4236526-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832334456']
### GND class:
['Rivera Villarreyes, Carlos Andres', 'Oswald, Sascha', 'Universität Potsdam', 'Feldversuch', 'Messung', 'Streuung', 'Kosmische Strahlung', 'Neutronenstrahlung', 'Bodenfeuchte']
<|eot_id|> |
3A832347485.jsonld | ['High-resolution large-eddy simulations of scalar transport in forest-edge flows and implications for the interpretation of in-situ micrometeorological measurements'] | ['Forest-atmosphere exchange, forest-edge flow, large-eddy simulation. - Wald-Atmosphären Austausch, Waldkantenströmung, Grobstruktursimulation'] | ['gnd:4192517-8', 'gnd:4315616-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832347485'] | ['Atmosphärische Grenzschicht', 'LES (Strömung)'] | Document
### Title: ['High-resolution large-eddy simulations of scalar transport in forest-edge flows and implications for the interpretation of in-situ micrometeorological measurements']
### Abstract:
['Forest-atmosphere exchange, forest-edge flow, large-eddy simulation. - Wald-Atmosphären Austausch, Waldkantenströmung, Grobstruktursimulation']
### GND ID:
['gnd:4192517-8', 'gnd:4315616-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832347485']
### GND class:
['Atmosphärische Grenzschicht', 'LES (Strömung)']
<|eot_id|> |
3A832552690.jsonld | ['An investigation of complex deformation patterns detected by using InSAR at Llaima and Tendürek volcanoes'] | ['Surface displacement at volcanic edifices is related to subsurface processes associated with magma movements, fluid transfers within the volcano edifice and gravity-driven deformation processes. Understanding of associated ground displacements is of importance for assessment of volcanic hazards. For example, volcanic unrest is often preceded by surface uplift, caused by magma intrusion and followed by subsidence, after the withdrawal of magma. Continuous monitoring of the surface displacement at volcanoes therefore might allow the forecasting of upcoming eruptions to some extent. In geophysics, the measured surface displacements allow the parameters of possible deformation sources to be estimated through analytical or numerical modeling. This is one way to improve the understanding of subsurface processes acting at volcanoes. Although the monitoring of volcanoes has significantly improved in the last decades (in terms of technical advancements and number of monitored volcanoes), the forecasting of volcanic eruptions remains puzzling. In this work I contribute towards the understanding of the subsurface processes at volcanoes and thus to the improvement of volcano eruption forecasting. I have investigated the displacement field of Llaima volcano in Chile and of Tendürek volcano in East Turkey by using synthetic aperture radar interferometry (InSAR). Through modeling of the deformation sources with the extracted displacement data, it was possible to gain insights into potential subsurface processes occurring at these two volcanoes that had been barely studied before. The two volcanoes, although of very different origin, composition and geometry, both show a complexity of interacting deformation sources. At Llaima volcano, the InSAR technique was difficult to apply, due to the large decorrelation of the radar signal between the acquisition of images. I developed a model-based unwrapping scheme, which allows the production of reliable displacement maps at the volcano that I used for deformation source modeling. The modeling results show significant differences in pre- and post-eruptive magmatic deformation source parameters. Therefore, I conjecture that two magma chambers exist below Llaima volcano: a post-eruptive deep one and a shallow one possibly due to the pre-eruptive ascent of magma. Similar reservoir depths at Llaima have been confirmed by independent petrologic studies. These reservoirs are interpreted to be temporally coupled. At Tendürek volcano I have found long-term subsidence of the volcanic edifice, which can be described by a large, magmatic, sill-like source that is subject to cooling contraction. The displacement data in conjunction with high-resolution optical images, however, reveal arcuate fractures at the eastern and western flank of the volcano. These are most likely the surface expressions of concentric ring-faults around the volcanic edifice that show low magnitudes of slip over a long time. This might be an alternative mechanism for the development of large caldera structures, which are so far assumed to be generated during large catastrophic collapse events. To investigate the potential subsurface geometry and relation of the two proposed interacting sources at Tendürek, a sill-like magmatic source and ring-faults, I have performed a more sophisticated numerical modeling approach. The optimum source geometries show, that the size of the sill-like source was overestimated in the simple models and that it is difficult to determine the dip angle of the ring-faults with surface displacement data only. However, considering physical and geological criteria a combination of outward-dipping reverse faults in the west and inward-dipping normal faults in the east seem to be the most likely. Consequently, the underground structure at the Tendürek volcano consists of a small, sill-like, contracting, magmatic source below the western summit crater that causes a trapdoor-like faulting along the ring-faults around the volcanic edifice. Therefore, the magmatic source and the ring-faults are also interpreted to be temporally coupled. In addition, a method for data reduction has been improved. The modeling of subsurface deformation sources requires only a relatively small number of well distributed InSAR observations at the earth’s surface. Satellite radar images, however, consist of several millions of these observations. Therefore, the large amount of data needs to be reduced by several orders of magnitude for source modeling, to save computation time and increase model flexibility. I have introduced a model-based subsampling approach in particular for heterogeneously-distributed observations. It allows a fast calculation of the data error variance-covariance matrix, also supports the modeling of time dependent displacement data and is, therefore, an alternative to existing method'] | ['gnd:1074444922', 'gnd:12391017X', 'gnd:2120681-8', 'gnd:4027296-5', 'gnd:4113458-8', 'gnd:4128339-9', 'gnd:4136115-5', 'gnd:4195782-9', 'gnd:4315323-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832552690'] | ['Vasyura-Bathke, Hannes', 'Walter, Thomas R.', 'Universität Potsdam', 'Interferometrie', 'Erdoberfläche', 'Vulkan', 'Verwerfung', 'Synthetische Apertur', 'Absenkung'] | Document
### Title: ['An investigation of complex deformation patterns detected by using InSAR at Llaima and Tendürek volcanoes']
### Abstract:
['Surface displacement at volcanic edifices is related to subsurface processes associated with magma movements, fluid transfers within the volcano edifice and gravity-driven deformation processes. Understanding of associated ground displacements is of importance for assessment of volcanic hazards. For example, volcanic unrest is often preceded by surface uplift, caused by magma intrusion and followed by subsidence, after the withdrawal of magma. Continuous monitoring of the surface displacement at volcanoes therefore might allow the forecasting of upcoming eruptions to some extent. In geophysics, the measured surface displacements allow the parameters of possible deformation sources to be estimated through analytical or numerical modeling. This is one way to improve the understanding of subsurface processes acting at volcanoes. Although the monitoring of volcanoes has significantly improved in the last decades (in terms of technical advancements and number of monitored volcanoes), the forecasting of volcanic eruptions remains puzzling. In this work I contribute towards the understanding of the subsurface processes at volcanoes and thus to the improvement of volcano eruption forecasting. I have investigated the displacement field of Llaima volcano in Chile and of Tendürek volcano in East Turkey by using synthetic aperture radar interferometry (InSAR). Through modeling of the deformation sources with the extracted displacement data, it was possible to gain insights into potential subsurface processes occurring at these two volcanoes that had been barely studied before. The two volcanoes, although of very different origin, composition and geometry, both show a complexity of interacting deformation sources. At Llaima volcano, the InSAR technique was difficult to apply, due to the large decorrelation of the radar signal between the acquisition of images. I developed a model-based unwrapping scheme, which allows the production of reliable displacement maps at the volcano that I used for deformation source modeling. The modeling results show significant differences in pre- and post-eruptive magmatic deformation source parameters. Therefore, I conjecture that two magma chambers exist below Llaima volcano: a post-eruptive deep one and a shallow one possibly due to the pre-eruptive ascent of magma. Similar reservoir depths at Llaima have been confirmed by independent petrologic studies. These reservoirs are interpreted to be temporally coupled. At Tendürek volcano I have found long-term subsidence of the volcanic edifice, which can be described by a large, magmatic, sill-like source that is subject to cooling contraction. The displacement data in conjunction with high-resolution optical images, however, reveal arcuate fractures at the eastern and western flank of the volcano. These are most likely the surface expressions of concentric ring-faults around the volcanic edifice that show low magnitudes of slip over a long time. This might be an alternative mechanism for the development of large caldera structures, which are so far assumed to be generated during large catastrophic collapse events. To investigate the potential subsurface geometry and relation of the two proposed interacting sources at Tendürek, a sill-like magmatic source and ring-faults, I have performed a more sophisticated numerical modeling approach. The optimum source geometries show, that the size of the sill-like source was overestimated in the simple models and that it is difficult to determine the dip angle of the ring-faults with surface displacement data only. However, considering physical and geological criteria a combination of outward-dipping reverse faults in the west and inward-dipping normal faults in the east seem to be the most likely. Consequently, the underground structure at the Tendürek volcano consists of a small, sill-like, contracting, magmatic source below the western summit crater that causes a trapdoor-like faulting along the ring-faults around the volcanic edifice. Therefore, the magmatic source and the ring-faults are also interpreted to be temporally coupled. In addition, a method for data reduction has been improved. The modeling of subsurface deformation sources requires only a relatively small number of well distributed InSAR observations at the earth’s surface. Satellite radar images, however, consist of several millions of these observations. Therefore, the large amount of data needs to be reduced by several orders of magnitude for source modeling, to save computation time and increase model flexibility. I have introduced a model-based subsampling approach in particular for heterogeneously-distributed observations. It allows a fast calculation of the data error variance-covariance matrix, also supports the modeling of time dependent displacement data and is, therefore, an alternative to existing method']
### GND ID:
['gnd:1074444922', 'gnd:12391017X', 'gnd:2120681-8', 'gnd:4027296-5', 'gnd:4113458-8', 'gnd:4128339-9', 'gnd:4136115-5', 'gnd:4195782-9', 'gnd:4315323-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832552690']
### GND class:
['Vasyura-Bathke, Hannes', 'Walter, Thomas R.', 'Universität Potsdam', 'Interferometrie', 'Erdoberfläche', 'Vulkan', 'Verwerfung', 'Synthetische Apertur', 'Absenkung']
<|eot_id|> |
3A832553433.jsonld | ['Combined monitoring of pest and beneficial insects with sticky traps, as basis for decision making in greenhouse pest control : a proof of concept study'] | ['Sticky trap, monitoring, decision support system, Trialeurodes vaporariorum, Encarsia formosa, Macrolophus pygmaeus. - Klebetafel, Entscheidungshilfe'] | ['gnd:4129490-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832553433'] | ['Integrierter Pflanzenschutz'] | Document
### Title: ['Combined monitoring of pest and beneficial insects with sticky traps, as basis for decision making in greenhouse pest control : a proof of concept study']
### Abstract:
['Sticky trap, monitoring, decision support system, Trialeurodes vaporariorum, Encarsia formosa, Macrolophus pygmaeus. - Klebetafel, Entscheidungshilfe']
### GND ID:
['gnd:4129490-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832553433']
### GND class:
['Integrierter Pflanzenschutz']
<|eot_id|> |
3A832598402.jsonld | ["Problematic identities in women's fiction of the Sri Lankan diaspora"] | ["Mimicry and detection : dismantling identity in Michelle de Kretser's The Hamilton case -- In fear of monsters : women's identities and the cult of domesticity in British Ceylon -- Combatting myths : racial and cultural identity in postcolonial Sri Lanka -- Chandani Lokugé and Yasmine Gooneratne : deconstructing postcolonial tourism, exoticism, and colonial simulacra -- Diasporic identities : inscriptions of celebration and psychic trauma in western locations -- 'Pretty little tales' of substance: a conclusion"] | ['gnd:1098155459', 'gnd:4014777-0', 'gnd:4018202-2', 'gnd:4026482-8', 'gnd:4035964-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832598402'] | ['Singhalesischer Einwanderer', 'Englisch', 'Frau', 'Identität', 'Literatur'] | Document
### Title: ["Problematic identities in women's fiction of the Sri Lankan diaspora"]
### Abstract:
["Mimicry and detection : dismantling identity in Michelle de Kretser's The Hamilton case -- In fear of monsters : women's identities and the cult of domesticity in British Ceylon -- Combatting myths : racial and cultural identity in postcolonial Sri Lanka -- Chandani Lokugé and Yasmine Gooneratne : deconstructing postcolonial tourism, exoticism, and colonial simulacra -- Diasporic identities : inscriptions of celebration and psychic trauma in western locations -- 'Pretty little tales' of substance: a conclusion"]
### GND ID:
['gnd:1098155459', 'gnd:4014777-0', 'gnd:4018202-2', 'gnd:4026482-8', 'gnd:4035964-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832598402']
### GND class:
['Singhalesischer Einwanderer', 'Englisch', 'Frau', 'Identität', 'Literatur']
<|eot_id|> |
3A832733016.jsonld | ['Maximierung der CO2-Abtrennung beim kohlebefeuerten Oxyfuel-Prozess mit kryogener Luftzerlegungsanlage'] | [['In this work the influence of a maximised carbon capture rate on the overall process of an Oxyfuel coal-fired power plant is evaluated. The capture rate is increased by implementing an additional capture process as a complement to the partial condensation process. This additional process can either be a membrane process or a pressure swing adsorption. The processes are evaluated with commercial modelling tools.$cen$dAbstract', 'In dieser Arbeit wird die Auswirkung einer maximierten CO2-Abtrennungsrate auf den Gesamtprozess eines Oxyfuel-Kohlekraftwerks energetisch untersucht und bewertet. Die CO2-Abtrennungsrate des Kraftwerks wird mit Hilfe eines zusätzlichen Abtrennungsprozesses als Ergänzung zur partiellen Kondensation erhöht. Dieser Prozess kann mit Membran oder Druckwechseladsorption ausgeführt werden. Die Prozesse wurden mit Hilfe kommerzieller Modellierungswerkzeuge untersucht.$cde$dAbstract']] | ['gnd:10196915-6', 'gnd:1077582404', 'gnd:1135158746', 'gnd:1139667319', 'gnd:4132668-4', 'gnd:4529413-6', 'gnd:7628163-2', 'gnd:7628985-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832733016'] | ['Technische Universität Hamburg-Harburg, Institut für Energietechnik', 'Dickmeis, Jens', 'Kather, Alfons', 'Fieg, Georg', 'Kohlekraftwerk', 'Luftzerlegung', 'Oxyfuel-Verfahren', 'Carbon dioxide capture and storage'] | Document
### Title: ['Maximierung der CO2-Abtrennung beim kohlebefeuerten Oxyfuel-Prozess mit kryogener Luftzerlegungsanlage']
### Abstract:
[['In this work the influence of a maximised carbon capture rate on the overall process of an Oxyfuel coal-fired power plant is evaluated. The capture rate is increased by implementing an additional capture process as a complement to the partial condensation process. This additional process can either be a membrane process or a pressure swing adsorption. The processes are evaluated with commercial modelling tools.$cen$dAbstract', 'In dieser Arbeit wird die Auswirkung einer maximierten CO2-Abtrennungsrate auf den Gesamtprozess eines Oxyfuel-Kohlekraftwerks energetisch untersucht und bewertet. Die CO2-Abtrennungsrate des Kraftwerks wird mit Hilfe eines zusätzlichen Abtrennungsprozesses als Ergänzung zur partiellen Kondensation erhöht. Dieser Prozess kann mit Membran oder Druckwechseladsorption ausgeführt werden. Die Prozesse wurden mit Hilfe kommerzieller Modellierungswerkzeuge untersucht.$cde$dAbstract']]
### GND ID:
['gnd:10196915-6', 'gnd:1077582404', 'gnd:1135158746', 'gnd:1139667319', 'gnd:4132668-4', 'gnd:4529413-6', 'gnd:7628163-2', 'gnd:7628985-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832733016']
### GND class:
['Technische Universität Hamburg-Harburg, Institut für Energietechnik', 'Dickmeis, Jens', 'Kather, Alfons', 'Fieg, Georg', 'Kohlekraftwerk', 'Luftzerlegung', 'Oxyfuel-Verfahren', 'Carbon dioxide capture and storage']
<|eot_id|> |
3A832748595.jsonld | ['Contributions to enterprise content management and qualitative and quantitative decision support'] | ['Enterprise content management (ECM), decision support, decision support system (DSS), optimization, car sharing, green IS, reference model, survey research, nexus of forces, IS governance, grounded theory. - Entscheidungsunterstützung, Entscheidungsunterstützungssystem, Optimierung, Referenzmodellierung, Umfrageforschung'] | ['gnd:4114012-6', 'gnd:4121202-2', 'gnd:4202171-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832748595'] | ['Informationsmanagement', 'Entscheidungsprozess', 'Entscheidungsunterstützung'] | Document
### Title: ['Contributions to enterprise content management and qualitative and quantitative decision support']
### Abstract:
['Enterprise content management (ECM), decision support, decision support system (DSS), optimization, car sharing, green IS, reference model, survey research, nexus of forces, IS governance, grounded theory. - Entscheidungsunterstützung, Entscheidungsunterstützungssystem, Optimierung, Referenzmodellierung, Umfrageforschung']
### GND ID:
['gnd:4114012-6', 'gnd:4121202-2', 'gnd:4202171-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832748595']
### GND class:
['Informationsmanagement', 'Entscheidungsprozess', 'Entscheidungsunterstützung']
<|eot_id|> |
3A832757594.jsonld | ['"Kompetenzverhandlungen" : zur Relevanz von Sozialkompetenz bei Führungskräften der Continental AG am Beispiel dual Studierender ; theoretische Grundlagen und empirische Befunde'] | ['Kompetenz, kommunikatives Handeln, Sozialkompetenz. - Competences, communicative action, social competences'] | ['gnd:4071497-4', 'gnd:4077606-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832757594'] | ['Führungskraft', 'Sozialkompetenz'] | Document
### Title: ['"Kompetenzverhandlungen" : zur Relevanz von Sozialkompetenz bei Führungskräften der Continental AG am Beispiel dual Studierender ; theoretische Grundlagen und empirische Befunde']
### Abstract:
['Kompetenz, kommunikatives Handeln, Sozialkompetenz. - Competences, communicative action, social competences']
### GND ID:
['gnd:4071497-4', 'gnd:4077606-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832757594']
### GND class:
['Führungskraft', 'Sozialkompetenz']
<|eot_id|> |
3A832762814.jsonld | ['Contributions to organizational information security'] | ["Employees' information security awareness and behavior, security education, training and awareness, consumerization of IT, bring your own device, IT governance, nexus of forces. - Informationssicherheitsbewusstsein und -verhalten von Mitarbeitern, Informationssicherheits-Bildung, -Training und -Bewusstsein"] | ['gnd:4011144-1', 'gnd:4069376-4', 'gnd:4285859-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832762814'] | ['Datensicherung', 'Betriebliche Bildungsarbeit', 'Organisationsverhalten'] | Document
### Title: ['Contributions to organizational information security']
### Abstract:
["Employees' information security awareness and behavior, security education, training and awareness, consumerization of IT, bring your own device, IT governance, nexus of forces. - Informationssicherheitsbewusstsein und -verhalten von Mitarbeitern, Informationssicherheits-Bildung, -Training und -Bewusstsein"]
### GND ID:
['gnd:4011144-1', 'gnd:4069376-4', 'gnd:4285859-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832762814']
### GND class:
['Datensicherung', 'Betriebliche Bildungsarbeit', 'Organisationsverhalten']
<|eot_id|> |
3A832899518.jsonld | ['Credit and liquidity risk in Lévy asset price models'] | ['Zusammenfassung: In this thesis, we present a new kind of asset price model. Credit risk considerations and new developments in the area of liquidity risk modelling are taken into account.In Chapter 1, essential mathematical tools, such as stochastic processes and dependence modelling, are reviewed.Chapter 2 presents a new asset price model, which is an enhancement of the exponential Levy model. The possibility of default is modelled by a single jump to zero, whereby higher probabilities for this event lead to lower asset prices. Explicit valuation formulas for European options are established by using the Fourier valuation method. The formulas can numerically be computed fast and thus allow to calibrate the model to market data.On illiquid markets, the law of one price no longer prevails and the costs of holding unhedgeable risks have to be considered. This issue is incorporated in the Two Price Theory of Cherny and Madan (2010) which is discussed and applied to the considered asset price model in Chapter 3 of this thesis'] | ['gnd:1074760492', 'gnd:4017214-4', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832899518'] | ['Bäurer, Patrick', 'Finanzwirtschaft', 'Lévy-Prozess'] | Document
### Title: ['Credit and liquidity risk in Lévy asset price models']
### Abstract:
['Zusammenfassung: In this thesis, we present a new kind of asset price model. Credit risk considerations and new developments in the area of liquidity risk modelling are taken into account.In Chapter 1, essential mathematical tools, such as stochastic processes and dependence modelling, are reviewed.Chapter 2 presents a new asset price model, which is an enhancement of the exponential Levy model. The possibility of default is modelled by a single jump to zero, whereby higher probabilities for this event lead to lower asset prices. Explicit valuation formulas for European options are established by using the Fourier valuation method. The formulas can numerically be computed fast and thus allow to calibrate the model to market data.On illiquid markets, the law of one price no longer prevails and the costs of holding unhedgeable risks have to be considered. This issue is incorporated in the Two Price Theory of Cherny and Madan (2010) which is discussed and applied to the considered asset price model in Chapter 3 of this thesis']
### GND ID:
['gnd:1074760492', 'gnd:4017214-4', 'gnd:4463623-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832899518']
### GND class:
['Bäurer, Patrick', 'Finanzwirtschaft', 'Lévy-Prozess']
<|eot_id|> |
3A83294288X.jsonld | ['Metalloxide zur thermochemischen Hochtemperaturwärmespeicherung'] | ['Thermochemische Energiespeicherung, Metalloxid, Gas/Feststoff-Reaktion. - Thermochemical energy storage, metal oxide, gas/solid-reaction'] | ['gnd:1081464313', 'gnd:4169619-0', 'gnd:4185138-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83294288X'] | ['Block, Tina', 'Metalloxide', 'Thermochemische Energiespeicherung'] | Document
### Title: ['Metalloxide zur thermochemischen Hochtemperaturwärmespeicherung']
### Abstract:
['Thermochemische Energiespeicherung, Metalloxid, Gas/Feststoff-Reaktion. - Thermochemical energy storage, metal oxide, gas/solid-reaction']
### GND ID:
['gnd:1081464313', 'gnd:4169619-0', 'gnd:4185138-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83294288X']
### GND class:
['Block, Tina', 'Metalloxide', 'Thermochemische Energiespeicherung']
<|eot_id|> |
3A832995533.jsonld | ['Kontextbasierte Sicherheitsmaßnahmen für mobile Geräte in nicht vertrauenswürdigen Netzwerken'] | ['Evil Twin, Hotspot, kontextbasierte Erkennung, mobile Malware, Ausbreitung. - Context-based recognition, spreading'] | ['gnd:4687059-3', 'gnd:7627927-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832995533'] | ['Malware', 'Mobiles Internet'] | Document
### Title: ['Kontextbasierte Sicherheitsmaßnahmen für mobile Geräte in nicht vertrauenswürdigen Netzwerken']
### Abstract:
['Evil Twin, Hotspot, kontextbasierte Erkennung, mobile Malware, Ausbreitung. - Context-based recognition, spreading']
### GND ID:
['gnd:4687059-3', 'gnd:7627927-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A832995533']
### GND class:
['Malware', 'Mobiles Internet']
<|eot_id|> |
3A833001795.jsonld | ['Formation of ternary oxides in the gas phase : mass spectrometric and quantum chemical investigation'] | ['Gaseous ternary oxides, mass spectrometry, quantum chemical calculations. - Gasförmige ternäre Oxide, Massenspektrometrie, quantenchemische Berechnungen'] | ['gnd:1075201543', 'gnd:4056693-6', 'gnd:4126202-5', 'gnd:4156038-3', 'gnd:4184773-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833001795'] | ['Kunkel, Katerina Alexandrovna', 'Stabilität', 'Oxide', 'Gasphase', 'Ternäre Verbindungen'] | Document
### Title: ['Formation of ternary oxides in the gas phase : mass spectrometric and quantum chemical investigation']
### Abstract:
['Gaseous ternary oxides, mass spectrometry, quantum chemical calculations. - Gasförmige ternäre Oxide, Massenspektrometrie, quantenchemische Berechnungen']
### GND ID:
['gnd:1075201543', 'gnd:4056693-6', 'gnd:4126202-5', 'gnd:4156038-3', 'gnd:4184773-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833001795']
### GND class:
['Kunkel, Katerina Alexandrovna', 'Stabilität', 'Oxide', 'Gasphase', 'Ternäre Verbindungen']
<|eot_id|> |
3A833004379.jsonld | ['Foreign aid, economic growth, and poverty reduction in Tanzania'] | ['Foreign aid, economic growth, poverty reduction, vulnerability to poverty, consumption poverty, asset poverty, Kilimanjaro, Ruvuma, Tanzania. - Entwicklungshilfe, Wirtschaftswachstum, Reduzierung von Armut, Vulnerabilität gegenüber Armut, Konsumarmut, Vermögensarmut, Klimandscharo, Tansania'] | ['gnd:4014948-1', 'gnd:4066527-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833004379'] | ['Entwicklungshilfe', 'Wirtschaftswachstum'] | Document
### Title: ['Foreign aid, economic growth, and poverty reduction in Tanzania']
### Abstract:
['Foreign aid, economic growth, poverty reduction, vulnerability to poverty, consumption poverty, asset poverty, Kilimanjaro, Ruvuma, Tanzania. - Entwicklungshilfe, Wirtschaftswachstum, Reduzierung von Armut, Vulnerabilität gegenüber Armut, Konsumarmut, Vermögensarmut, Klimandscharo, Tansania']
### GND ID:
['gnd:4014948-1', 'gnd:4066527-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833004379']
### GND class:
['Entwicklungshilfe', 'Wirtschaftswachstum']
<|eot_id|> |
3A833135686.jsonld | ['Practical application of a call feeding station in gestating sows considering agonistic interactions, lesions and learning abilities in group housed sows'] | [['The main problem encountered with group-housed sows is agonistic interactions. An additional problem in modern housing systems is the few cognitive stimuli. The aim of this thesis was to test whether sows are able to learn in adequate time a trisyllabic name and keep it throughout the whole production cycle. Furthermore was to test whether these problems of agonistic interactions can be reduced by a call feeding station that only allows access to feed after sows had been individually called. During the first learning trial, new learning sows demonstrated better learning performance compared with the relearning sows. The proportion of agonistic interactions (pushing, fighting, biting, hunting and treating) was higher in normal feeding compared with call feeding. This study contributes to a better understanding of the cognitive abilities of sows and shows possibilities for improving the welfare of sows in farming by reducing agonistic interactions and by integrating a cognitive enrichment component into their daily feeding routine.', 'Gestating sows; learning; cognitive enrichment; animal welfare; agonistic bahavior; call feeding; group housing; electronic feeding; precision livestock farming', 'Eines der größten Probleme in der Gruppenhaltung von Sauen sind die agonistischen Interaktionen. Hinzu kommt, dass Sauen mit wenigen kognitiven Reizen konfrontiert werden. Im ersten Schritt dieser Arbeit wurde untersucht, ob Sauen einen individuellen Ton lernen und diesen auch durch die unterschiedlichen Produktionsabschnitte behalten können. Darüber hinaus wurde untersucht, ob die agonistischen Interaktionen innerhalb der Sauengruppe gesenkt werden konnten. In der ersten Lerneinheit zeigten die naiven Sauen eine bessere Leistung im Vergleich zu den Sauen, die umlernen mussten. Die Ergebnisse der Verhaltensbeobachtungen (drängeln, kämpfen, beißen, jagen und drohen) zeigen deutlich weniger agonistisches Verhalten in der Aufrufstation im Vergleich zur Abrufstation. Diese Studie trägt zu einem besseren Verständnis der kognitiven Fähigkeiten von Schweinen bei und zeigt Möglichkeiten auf, das Tierwohl zu verbessern, indem agonistische Interaktionen reduziert und eine kognitive angereicherte Haltungsumwelt in die Sauenhaltung integriert werden können.', 'Tragende Sauen; lernen; kognitive Haltungsanreicherung; Tierwohl; agonistisches Verhalten; Aufrufstation; Gruppenhaltung; Elektronische Fütterung; Precision Livestock Farming']] | ['gnd:4031630-0', 'gnd:4143126-1', 'gnd:4250389-9', 'gnd:4485768-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833135686'] | ['Kognition', 'Artgerechte Haltung', 'Gruppenhaltung', 'Sauenhaltung'] | Document
### Title: ['Practical application of a call feeding station in gestating sows considering agonistic interactions, lesions and learning abilities in group housed sows']
### Abstract:
[['The main problem encountered with group-housed sows is agonistic interactions. An additional problem in modern housing systems is the few cognitive stimuli. The aim of this thesis was to test whether sows are able to learn in adequate time a trisyllabic name and keep it throughout the whole production cycle. Furthermore was to test whether these problems of agonistic interactions can be reduced by a call feeding station that only allows access to feed after sows had been individually called. During the first learning trial, new learning sows demonstrated better learning performance compared with the relearning sows. The proportion of agonistic interactions (pushing, fighting, biting, hunting and treating) was higher in normal feeding compared with call feeding. This study contributes to a better understanding of the cognitive abilities of sows and shows possibilities for improving the welfare of sows in farming by reducing agonistic interactions and by integrating a cognitive enrichment component into their daily feeding routine.', 'Gestating sows; learning; cognitive enrichment; animal welfare; agonistic bahavior; call feeding; group housing; electronic feeding; precision livestock farming', 'Eines der größten Probleme in der Gruppenhaltung von Sauen sind die agonistischen Interaktionen. Hinzu kommt, dass Sauen mit wenigen kognitiven Reizen konfrontiert werden. Im ersten Schritt dieser Arbeit wurde untersucht, ob Sauen einen individuellen Ton lernen und diesen auch durch die unterschiedlichen Produktionsabschnitte behalten können. Darüber hinaus wurde untersucht, ob die agonistischen Interaktionen innerhalb der Sauengruppe gesenkt werden konnten. In der ersten Lerneinheit zeigten die naiven Sauen eine bessere Leistung im Vergleich zu den Sauen, die umlernen mussten. Die Ergebnisse der Verhaltensbeobachtungen (drängeln, kämpfen, beißen, jagen und drohen) zeigen deutlich weniger agonistisches Verhalten in der Aufrufstation im Vergleich zur Abrufstation. Diese Studie trägt zu einem besseren Verständnis der kognitiven Fähigkeiten von Schweinen bei und zeigt Möglichkeiten auf, das Tierwohl zu verbessern, indem agonistische Interaktionen reduziert und eine kognitive angereicherte Haltungsumwelt in die Sauenhaltung integriert werden können.', 'Tragende Sauen; lernen; kognitive Haltungsanreicherung; Tierwohl; agonistisches Verhalten; Aufrufstation; Gruppenhaltung; Elektronische Fütterung; Precision Livestock Farming']]
### GND ID:
['gnd:4031630-0', 'gnd:4143126-1', 'gnd:4250389-9', 'gnd:4485768-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833135686']
### GND class:
['Kognition', 'Artgerechte Haltung', 'Gruppenhaltung', 'Sauenhaltung']
<|eot_id|> |
3A833230093.jsonld | ['Tunable hyperchromatic lenses'] | ['Zusammenfassung: Optical full-field imaging, as microscopy, delivers three-dimensional information of the topology of surfaces. To extend the information from the sample under test, hyperspectral imaging additionally delivers the spectral answer of the sample. This additional feature can be conceived as a means for food control or as a diagnostic approach in dermatology.This thesis presents the design, fabrication, and characterization of a tunable hyperchromatic lens for confocal hyperspectral imaging systems. The hyperchromatic lens has a compact structure consisting of a diffractive lens, a tunable refractive membrane lens, and a pinhole in front of a detector for spectral filtering by spatially separating the wavelengths of a focused beam. The method makes use of an extended longitudinal chromatic aberration. Thereby, the refractive lens is continuously hydraulically tuned by an integrated magnetic actuator, allowing a fast scan over the entire spectrum of the incident light.Three different prototypes of the hyperchromatic lens system have been realized: (i) a hybrid hyperchromatic lens with separated diffractive and refractive lens, (ii) a system with diffractive structures imprinted onto the lens membrane, and (iii) a hyperchromatic micro-lens array.The spectral resolution, achieved with the realized hyperchromatic systems, is in the order of 15nm for both types of single lenses. Due to smaller lens diameters in case of the arrays, the spectral resolution is somewhat reduced. The systems have been designed for a broad spectral range, and the functionality could successfully be verified for wavelengths between 450 and 900 nm'] | ['gnd:1075203074', 'gnd:4167776-6', 'gnd:4315379-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833230093'] | ['Cu-Nguyen, Phuong-Ha', 'Linse', 'Multispektraltechnik'] | Document
### Title: ['Tunable hyperchromatic lenses']
### Abstract:
['Zusammenfassung: Optical full-field imaging, as microscopy, delivers three-dimensional information of the topology of surfaces. To extend the information from the sample under test, hyperspectral imaging additionally delivers the spectral answer of the sample. This additional feature can be conceived as a means for food control or as a diagnostic approach in dermatology.This thesis presents the design, fabrication, and characterization of a tunable hyperchromatic lens for confocal hyperspectral imaging systems. The hyperchromatic lens has a compact structure consisting of a diffractive lens, a tunable refractive membrane lens, and a pinhole in front of a detector for spectral filtering by spatially separating the wavelengths of a focused beam. The method makes use of an extended longitudinal chromatic aberration. Thereby, the refractive lens is continuously hydraulically tuned by an integrated magnetic actuator, allowing a fast scan over the entire spectrum of the incident light.Three different prototypes of the hyperchromatic lens system have been realized: (i) a hybrid hyperchromatic lens with separated diffractive and refractive lens, (ii) a system with diffractive structures imprinted onto the lens membrane, and (iii) a hyperchromatic micro-lens array.The spectral resolution, achieved with the realized hyperchromatic systems, is in the order of 15nm for both types of single lenses. Due to smaller lens diameters in case of the arrays, the spectral resolution is somewhat reduced. The systems have been designed for a broad spectral range, and the functionality could successfully be verified for wavelengths between 450 and 900 nm']
### GND ID:
['gnd:1075203074', 'gnd:4167776-6', 'gnd:4315379-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833230093']
### GND class:
['Cu-Nguyen, Phuong-Ha', 'Linse', 'Multispektraltechnik']
<|eot_id|> |
3A833270281.jsonld | ['µ-Hyperholomorphic Function Theory in R³: geometric mapping properties and applications'] | ['This thesis applies the theory of \\psi-hyperholomorphic functions dened in R^3 with values in the set of paravectors, which is identified with the Eucledian space R^3, to tackle some problems in theory and practice: geometric mapping properties, additive decompositions of harmonic functions and applications in the theory of linear elasticity.'] | ['gnd:1015214991', 'gnd:4001865-9', 'gnd:4176653-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833270281'] | ['Gürlebeck, Klaus', 'Analysis', 'Quaternion'] | Document
### Title: ['µ-Hyperholomorphic Function Theory in R³: geometric mapping properties and applications']
### Abstract:
['This thesis applies the theory of \\psi-hyperholomorphic functions dened in R^3 with values in the set of paravectors, which is identified with the Eucledian space R^3, to tackle some problems in theory and practice: geometric mapping properties, additive decompositions of harmonic functions and applications in the theory of linear elasticity.']
### GND ID:
['gnd:1015214991', 'gnd:4001865-9', 'gnd:4176653-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833270281']
### GND class:
['Gürlebeck, Klaus', 'Analysis', 'Quaternion']
<|eot_id|> |
3A833296191.jsonld | ['The close environment of AFGL 490 in radio-interferometric observations'] | ["The formation of high-mass stars in a scaled-up version of the low-mass star formation scenario has gained confidence in recent years, but open questions remain regarding details like the structure of circumstellar disks and interaction between accretion and outflows. Advances in spatial resolution and sensitivity of (sub)millimeter instruments as ALMA open the possibility to study high-mass star formation in detail, which is challengig due to large distances, embedding in gas and dust during the whole formation phase and complex environments. This work focuses on AFGL490, an isolated nearby object at the border between intermediate and high-mass (8-10 solar masses), and one of the few known more massive objects with spatially resolved observations of a circumstellar disk. Interferometric millimeter observations of C34S, CS and CH3OH were analyzed and show two distinct emission regions in the close environment of AFGL490: an innermost region containing the earlier detected circumstellar disk, and a wider region tracing the densest parts of the outflow wall, while the region between both appears to be devoid of (emitting) dense gas. Modelled emission from flared and partially shadowed disk models plus a line radiative transfer was compared with the observed emission in the uv-plane in an attempt to better characterize the circumstellar disk properties. Spatial resolution and sensitivity of the analyzed observations do not allow for strong constraints, but provide evidence for a C34S distribution more centrally condensed than that of C17O, a possible hint for a chemical structure of the disk. In the wider environment, inverse P-Cygni line profiles hint at ongoing gas infall from the outer envelope; the strongest emission features could represent a region where the infalling envelope gas strikes the dense outflow walls close to the plane of the innermost disk. Uncertainties of the disk-outflow-system's inclination angle could not be resovled."] | ['gnd:1072787318', 'gnd:36164-1', 'gnd:4200157-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833296191'] | ['Marka, Claudia', 'Friedrich-Schiller-Universität Jena', 'Radiointerferometrie'] | Document
### Title: ['The close environment of AFGL 490 in radio-interferometric observations']
### Abstract:
["The formation of high-mass stars in a scaled-up version of the low-mass star formation scenario has gained confidence in recent years, but open questions remain regarding details like the structure of circumstellar disks and interaction between accretion and outflows. Advances in spatial resolution and sensitivity of (sub)millimeter instruments as ALMA open the possibility to study high-mass star formation in detail, which is challengig due to large distances, embedding in gas and dust during the whole formation phase and complex environments. This work focuses on AFGL490, an isolated nearby object at the border between intermediate and high-mass (8-10 solar masses), and one of the few known more massive objects with spatially resolved observations of a circumstellar disk. Interferometric millimeter observations of C34S, CS and CH3OH were analyzed and show two distinct emission regions in the close environment of AFGL490: an innermost region containing the earlier detected circumstellar disk, and a wider region tracing the densest parts of the outflow wall, while the region between both appears to be devoid of (emitting) dense gas. Modelled emission from flared and partially shadowed disk models plus a line radiative transfer was compared with the observed emission in the uv-plane in an attempt to better characterize the circumstellar disk properties. Spatial resolution and sensitivity of the analyzed observations do not allow for strong constraints, but provide evidence for a C34S distribution more centrally condensed than that of C17O, a possible hint for a chemical structure of the disk. In the wider environment, inverse P-Cygni line profiles hint at ongoing gas infall from the outer envelope; the strongest emission features could represent a region where the infalling envelope gas strikes the dense outflow walls close to the plane of the innermost disk. Uncertainties of the disk-outflow-system's inclination angle could not be resovled."]
### GND ID:
['gnd:1072787318', 'gnd:36164-1', 'gnd:4200157-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A833296191']
### GND class:
['Marka, Claudia', 'Friedrich-Schiller-Universität Jena', 'Radiointerferometrie']
<|eot_id|> |
3A834069288.jsonld | ['Structural, electronic and optical properties of group-IV honeycomb crystals from first principles'] | ['Nature has always been inspiration and resource for new technical developments that otherwise would not have been possible. Taking a close look at almost every aspect of daily life and technology it is obvious that, even nowadays, most of the materials are based on natural occurring raw materials and concepts. The rise of quantum mechanics, which is the theory of objects compared to the size of atoms, allowed an in-depth understanding of the physical properties of materials, and also paved the way for optimized or even tailored properties of specific technological applications. The naturally occurring graphite is a highly anisotropic allotrope of carbon. It is built from stratified atomically thin layers of carbon atoms, which are strongly bonded in a honeycomb lattice within each layer. In contrast, the bonding between the layers is only weak due to van der Waals interactions. The theoretical study of the electronic properties of graphite was initiated by Wallace back in the 1940s. Surprisingly, the calculations also revealed remarkable electronic properties of single layer graphite, which was later called graphene. In particular, it was shown that due to the hexagonal symmetry of the carbon atoms within the layer the valence electrons resemble the linear dispersion of massless particles, which led to a strong interest in this material. The first known extraction of a graphene layer has been achieved in 1962 by Boehm, but the reliable production is possible only since 2004 due to Geim and coworkers. For this achievement, Andre Geim and Konstantin Novoselov have been granted the Nobel prize of physics in 2010. Indeed, very recently the large-scale production of graphene by shear-exfoliation has begun. Since graphene is broadly available, manifold developments and predictions have been made for this new "wonder material". ...'] | ['gnd:1035519526', 'gnd:1130668045', 'gnd:36164-1', 'gnd:4258514-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834069288'] | ['Topologischer Isolator', 'Matthes, Lars', 'Friedrich-Schiller-Universität Jena', 'Dichtefunktionalformalismus'] | Document
### Title: ['Structural, electronic and optical properties of group-IV honeycomb crystals from first principles']
### Abstract:
['Nature has always been inspiration and resource for new technical developments that otherwise would not have been possible. Taking a close look at almost every aspect of daily life and technology it is obvious that, even nowadays, most of the materials are based on natural occurring raw materials and concepts. The rise of quantum mechanics, which is the theory of objects compared to the size of atoms, allowed an in-depth understanding of the physical properties of materials, and also paved the way for optimized or even tailored properties of specific technological applications. The naturally occurring graphite is a highly anisotropic allotrope of carbon. It is built from stratified atomically thin layers of carbon atoms, which are strongly bonded in a honeycomb lattice within each layer. In contrast, the bonding between the layers is only weak due to van der Waals interactions. The theoretical study of the electronic properties of graphite was initiated by Wallace back in the 1940s. Surprisingly, the calculations also revealed remarkable electronic properties of single layer graphite, which was later called graphene. In particular, it was shown that due to the hexagonal symmetry of the carbon atoms within the layer the valence electrons resemble the linear dispersion of massless particles, which led to a strong interest in this material. The first known extraction of a graphene layer has been achieved in 1962 by Boehm, but the reliable production is possible only since 2004 due to Geim and coworkers. For this achievement, Andre Geim and Konstantin Novoselov have been granted the Nobel prize of physics in 2010. Indeed, very recently the large-scale production of graphene by shear-exfoliation has begun. Since graphene is broadly available, manifold developments and predictions have been made for this new "wonder material". ...']
### GND ID:
['gnd:1035519526', 'gnd:1130668045', 'gnd:36164-1', 'gnd:4258514-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834069288']
### GND class:
['Topologischer Isolator', 'Matthes, Lars', 'Friedrich-Schiller-Universität Jena', 'Dichtefunktionalformalismus']
<|eot_id|> |
3A834228475.jsonld | ['Assessing the temporal patterns of mid-Cretaceous floral change in Portugal : a palynological and chemostratigraphic approach'] | ['Early angiosperm radiation, palynology, paleoclimate, Lusitanian Basin, Albian. - Radiation der frühen Angiospermen, Palynologie, Paläoklima, Lusitanisches Becken, Albium'] | ['gnd:4046629-2', 'gnd:4170235-9', 'gnd:4288494-9', 'gnd:4381450-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834228475'] | ['Pollenanalyse', 'Mittelkreide', 'Paläoklima', 'Lusitanisches Becken'] | Document
### Title: ['Assessing the temporal patterns of mid-Cretaceous floral change in Portugal : a palynological and chemostratigraphic approach']
### Abstract:
['Early angiosperm radiation, palynology, paleoclimate, Lusitanian Basin, Albian. - Radiation der frühen Angiospermen, Palynologie, Paläoklima, Lusitanisches Becken, Albium']
### GND ID:
['gnd:4046629-2', 'gnd:4170235-9', 'gnd:4288494-9', 'gnd:4381450-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834228475']
### GND class:
['Pollenanalyse', 'Mittelkreide', 'Paläoklima', 'Lusitanisches Becken']
<|eot_id|> |
3A834273632.jsonld | ['Multisensory posture control in hip and ankle joints'] | ['Zusammenfassung: Human control of upright stance is highly complex, involving the integration of several sensory systems and the stabilization of several body segments. An experimental simplification is to apply moderate external disturbances and to model the human biomechanics as a single inverted pendulum (SIP) rotating about the ankle joints. While many aspects of the sensory integration in human posture control can be explained with the SIP model, other aspects, such as inter-segmental coordination, require the consideration of additional degrees of freedom (DOF). This thesis proceeds from a posture control mechanism controlling a SIP model and extends it to investigate the human control of hip and ankle joints using a double inverted pendulum (DIP) biomechanical model. Five experimental studies have been conducted addressing different aspects of the sensory integration in the human hip and ankle joint control mechanisms.A first study (Double inverted pendulum model of reactive human stance control) investigated which additional aspects need to be considered when controlling a DIP model as compared to a SIP model. The study proceeded from a SIP control mechanism, referred to as disturbance estimation and compensation concept (DEC concept). It uses sensor-based reconstructions of external disturbances in a feedback control mechanism, instead of ‘raw’ sensory signals. The first study showed that the principles of the DEC concept can also be applied to control DIP biomechanics, when assuming that the ankle joints stabilize the whole-body center of mass, while the hip joints stabilize the trunk.A second study (Human hip-ankle coordination emerging from multisensory feedback control) applied the findings of the first study in a detailed investigation of human sway responses to support surface tilts across a broad spectrum of tilt frequencies and amplitudes. The study provided a model that quantitatively reproduces the observed human sway responses in hip and ankle joints and confirmed the hypothesis that the hip-ankle coordination emerges from sensory interactions during reactive balancing. A major conclusion was that combining several DEC modules in a modular control structure might be used to stabilize even more complex systems with multiple DOF.A third study (Human-like sensor fusion implemented in the posture control of a bipedal robot) focused specifically on the implementation of the DIP control model in a postural control robot. The study applied ...'] | ['gnd:1012711269', 'gnd:4006880-8', 'gnd:4026025-2', 'gnd:4032312-2', 'gnd:4056580-4', 'gnd:4183005-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834273632'] | ['Hettich, Georg', 'Biomechanik', 'Hüftgelenk', 'Kontrolle', 'Sprunggelenk', 'Stehen'] | Document
### Title: ['Multisensory posture control in hip and ankle joints']
### Abstract:
['Zusammenfassung: Human control of upright stance is highly complex, involving the integration of several sensory systems and the stabilization of several body segments. An experimental simplification is to apply moderate external disturbances and to model the human biomechanics as a single inverted pendulum (SIP) rotating about the ankle joints. While many aspects of the sensory integration in human posture control can be explained with the SIP model, other aspects, such as inter-segmental coordination, require the consideration of additional degrees of freedom (DOF). This thesis proceeds from a posture control mechanism controlling a SIP model and extends it to investigate the human control of hip and ankle joints using a double inverted pendulum (DIP) biomechanical model. Five experimental studies have been conducted addressing different aspects of the sensory integration in the human hip and ankle joint control mechanisms.A first study (Double inverted pendulum model of reactive human stance control) investigated which additional aspects need to be considered when controlling a DIP model as compared to a SIP model. The study proceeded from a SIP control mechanism, referred to as disturbance estimation and compensation concept (DEC concept). It uses sensor-based reconstructions of external disturbances in a feedback control mechanism, instead of ‘raw’ sensory signals. The first study showed that the principles of the DEC concept can also be applied to control DIP biomechanics, when assuming that the ankle joints stabilize the whole-body center of mass, while the hip joints stabilize the trunk.A second study (Human hip-ankle coordination emerging from multisensory feedback control) applied the findings of the first study in a detailed investigation of human sway responses to support surface tilts across a broad spectrum of tilt frequencies and amplitudes. The study provided a model that quantitatively reproduces the observed human sway responses in hip and ankle joints and confirmed the hypothesis that the hip-ankle coordination emerges from sensory interactions during reactive balancing. A major conclusion was that combining several DEC modules in a modular control structure might be used to stabilize even more complex systems with multiple DOF.A third study (Human-like sensor fusion implemented in the posture control of a bipedal robot) focused specifically on the implementation of the DIP control model in a postural control robot. The study applied ...']
### GND ID:
['gnd:1012711269', 'gnd:4006880-8', 'gnd:4026025-2', 'gnd:4032312-2', 'gnd:4056580-4', 'gnd:4183005-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834273632']
### GND class:
['Hettich, Georg', 'Biomechanik', 'Hüftgelenk', 'Kontrolle', 'Sprunggelenk', 'Stehen']
<|eot_id|> |
3A834420104.jsonld | ['Denkmodelle der Hoffnung in Philosophie und Literatur : eine typologische Annäherung'] | ['"Hope originally meant anticipation of what is to come and was related mostly to the material here-and-now or a religious dimension in the beyond. By the modern era at the latest, however, this reading becomes problematic. Instead, literature and philosophy develop conceptions of hope that are increasingly characterized by ambivalence and paradox, conceptions that evoke the future in a mode of uncertainty."--'] | ['gnd:10095502-2', 'gnd:136539572', 'gnd:2000862-4', 'gnd:4025493-8', 'gnd:4035964-5', 'gnd:4045791-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834420104'] | ['Walter de Gruyter GmbH & Co. KG', 'Bidmon, Agnes', 'Friedrich-Alexander-Universität Erlangen-Nürnberg', 'Hoffnung', 'Literatur', 'Philosophie'] | Document
### Title: ['Denkmodelle der Hoffnung in Philosophie und Literatur : eine typologische Annäherung']
### Abstract:
['"Hope originally meant anticipation of what is to come and was related mostly to the material here-and-now or a religious dimension in the beyond. By the modern era at the latest, however, this reading becomes problematic. Instead, literature and philosophy develop conceptions of hope that are increasingly characterized by ambivalence and paradox, conceptions that evoke the future in a mode of uncertainty."--']
### GND ID:
['gnd:10095502-2', 'gnd:136539572', 'gnd:2000862-4', 'gnd:4025493-8', 'gnd:4035964-5', 'gnd:4045791-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834420104']
### GND class:
['Walter de Gruyter GmbH & Co. KG', 'Bidmon, Agnes', 'Friedrich-Alexander-Universität Erlangen-Nürnberg', 'Hoffnung', 'Literatur', 'Philosophie']
<|eot_id|> |
3A834505940.jsonld | ['Dynamical localization in driven helium'] | [['Zusammenfassung: The thesis provides a comprehensive introduction to the quantum mechanics of decaying systems, which either autoionize or decay due to their interaction with an external time-dependent field. The complex rotation method provides direct access to the energy spectrum of both types of systems, from which we extract resonance energies and ionization rates. We express the time evolution operator in terms of the complex rotated eigenstates and analyze its action onto initially bound, square integrable states, as well as onto non-normalizable resonance states with complex energy and wavepackets of freely moving particles.The helium atom, which is probably the simplest autoionizing system realized in nature, exhibits all prominent features of complex decaying systems, such as strong chaos, regular regions in phase space and decay into multiple continua. We analyze the quantum mechanics of the collinear eZe and Zee configurations, which account for opposite types of the classical motion realized in the three-dimensional system. We show that the fully chaotic classical dynamics of the eZe configuration, with the nucleus between the electrons, induces fast autoionization of the quantum states, triggered by the triple collision of both electrons with the nucleus. In contrast, the adiabatic separation of the motions of the inner and outer electron stabilizes the Zee configuration against autoionization. The accuracy of the atomic energy levels obtained from a semiclassical approach shows that the Zee dynamics is nearly integrable.The electronic excitation of atomic systems exposed to an electromagnetic field may be hampered by dynamical (Anderson) localization. We detect localization in microwave-driven Zee helium due to the suppression of field-induced ionization. In the presence of fast autoionization in eZe Rydberg atoms, we directly monitor the exponential suppression of the field-induced excitation process in energy space due to dynamical localization. By tuning the electron-electron Coulomb repulsion and the initial excitation of both electrons, we investigate the impact of particle-particle interactions on localization, which is a problem of great common interest, not only in AMO but also in condensed matter physics. We explain quantitatively the weakening of localization due to the Coulomb interaction, and establish a scaling law which connects the localization length with the interaction strength and the intensity of the driving field', 'Zusammenfassung: Die vorliegende Arbeit enthält eine umfassende Einführung in die Quantenmechanik zerfallender Systeme, die entweder autoionisieren oder in Wechselwirkung mit einem externen, zeitlich veränderlichen Feld zerfallen. Das Verfahren der komplexen Rotation des Hamiltonoperators ermöglicht den direkten Zugang zum Energiespektrum solcher Systeme, aus welchem sich die Energien und Ionisationsraten der Resonanzzustände extrahieren lassen. Wir stellen den Zeitentwicklungsoperator mithilfe der komplex rotierten Eigenzustände dar und analysieren seine Wirkung auf anfangs gebundene, quadratintegrable Zustände, sowie nicht normierbare Resonanzzustände zu komplexen Energien und Wellenpakete frei beweglicher Teilchen.Das Heliumatom ist das wohl einfachste real existierende autoionisierende System, besitzt aber die relevanten Eigenschaften komplexer zerfallender Systeme. Der Phasenraum weist sowohl stark chaotische als auch reguläre Gebiete und eine Vielzahl an Zerfallskanälen auf. Wir untersuchen die Quantenmechanik der kollinearen eZe- und Zee-Konfigurationen, in denen sich gegensätzliche Spielarten der dreidimensionalen klassischen Dynamik widerspiegeln. Wir zeigen, dass die vollständig chaotische klassische Dynamik der eZe-Konfiguration, mit dem Atomkern zwischen den beiden Elektronen, mit einem raschen Zerfall der Quantenzustände einhergeht, ausgelöst durch die Dreifachkollision beider Elektronen mit dem Kern. Im Gegensatz dazu stabilisiert die adiabatische Entkopplung der Bewegungen des inneren und äußeren Elektrons die Zee-Konfiguration, mit beiden Elektronen auf einer Seite des Kerns, gegen Autoionisation. Wie eine präzise semiklassische Beschreibung zeigt, ist die klassische Dynamik der Zee-Konfiguration nahezu integrabel.Dynamische (Anderson-) Lokalisierung hemmt die elektronische Anregung atomarer Systeme im elektromagnetischen Feld. Wir weisen Lokalisierung in Zee-Helium anhand verminderter Photoionisation durch ein Mikrowellenfeld nach. In Gegenwart rascher Autoionisation in eZe-Rydbergatomen machen wir dynamische Lokalisierung direkt durch das exponentiell abfallende Anregungsprofil im Energieraum sichtbar. Wir verändern die Stärke der Coulomb-Abstoßung und die anfängliche Anregung der beiden Elektronen, um den Einfluss der Wechselwirkung der Teilchen auf den Lokalisierungsprozess zu untersuchen. Dies stellt eine Fragestellung von grundlegendem Interesse in der AMO-Physik ebenso wie in der Physik der kon ...']] | ['gnd:1075945801', 'gnd:4012974-3', 'gnd:4142388-4', 'gnd:4143686-6', 'gnd:4174506-1', 'gnd:4316104-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834505940'] | ['Jörder, Felix', 'Dreikörperproblem', 'Anderson-Lokalisation', 'Autoionisation', 'Fotoionisation', 'Chaotisches System'] | Document
### Title: ['Dynamical localization in driven helium']
### Abstract:
[['Zusammenfassung: The thesis provides a comprehensive introduction to the quantum mechanics of decaying systems, which either autoionize or decay due to their interaction with an external time-dependent field. The complex rotation method provides direct access to the energy spectrum of both types of systems, from which we extract resonance energies and ionization rates. We express the time evolution operator in terms of the complex rotated eigenstates and analyze its action onto initially bound, square integrable states, as well as onto non-normalizable resonance states with complex energy and wavepackets of freely moving particles.The helium atom, which is probably the simplest autoionizing system realized in nature, exhibits all prominent features of complex decaying systems, such as strong chaos, regular regions in phase space and decay into multiple continua. We analyze the quantum mechanics of the collinear eZe and Zee configurations, which account for opposite types of the classical motion realized in the three-dimensional system. We show that the fully chaotic classical dynamics of the eZe configuration, with the nucleus between the electrons, induces fast autoionization of the quantum states, triggered by the triple collision of both electrons with the nucleus. In contrast, the adiabatic separation of the motions of the inner and outer electron stabilizes the Zee configuration against autoionization. The accuracy of the atomic energy levels obtained from a semiclassical approach shows that the Zee dynamics is nearly integrable.The electronic excitation of atomic systems exposed to an electromagnetic field may be hampered by dynamical (Anderson) localization. We detect localization in microwave-driven Zee helium due to the suppression of field-induced ionization. In the presence of fast autoionization in eZe Rydberg atoms, we directly monitor the exponential suppression of the field-induced excitation process in energy space due to dynamical localization. By tuning the electron-electron Coulomb repulsion and the initial excitation of both electrons, we investigate the impact of particle-particle interactions on localization, which is a problem of great common interest, not only in AMO but also in condensed matter physics. We explain quantitatively the weakening of localization due to the Coulomb interaction, and establish a scaling law which connects the localization length with the interaction strength and the intensity of the driving field', 'Zusammenfassung: Die vorliegende Arbeit enthält eine umfassende Einführung in die Quantenmechanik zerfallender Systeme, die entweder autoionisieren oder in Wechselwirkung mit einem externen, zeitlich veränderlichen Feld zerfallen. Das Verfahren der komplexen Rotation des Hamiltonoperators ermöglicht den direkten Zugang zum Energiespektrum solcher Systeme, aus welchem sich die Energien und Ionisationsraten der Resonanzzustände extrahieren lassen. Wir stellen den Zeitentwicklungsoperator mithilfe der komplex rotierten Eigenzustände dar und analysieren seine Wirkung auf anfangs gebundene, quadratintegrable Zustände, sowie nicht normierbare Resonanzzustände zu komplexen Energien und Wellenpakete frei beweglicher Teilchen.Das Heliumatom ist das wohl einfachste real existierende autoionisierende System, besitzt aber die relevanten Eigenschaften komplexer zerfallender Systeme. Der Phasenraum weist sowohl stark chaotische als auch reguläre Gebiete und eine Vielzahl an Zerfallskanälen auf. Wir untersuchen die Quantenmechanik der kollinearen eZe- und Zee-Konfigurationen, in denen sich gegensätzliche Spielarten der dreidimensionalen klassischen Dynamik widerspiegeln. Wir zeigen, dass die vollständig chaotische klassische Dynamik der eZe-Konfiguration, mit dem Atomkern zwischen den beiden Elektronen, mit einem raschen Zerfall der Quantenzustände einhergeht, ausgelöst durch die Dreifachkollision beider Elektronen mit dem Kern. Im Gegensatz dazu stabilisiert die adiabatische Entkopplung der Bewegungen des inneren und äußeren Elektrons die Zee-Konfiguration, mit beiden Elektronen auf einer Seite des Kerns, gegen Autoionisation. Wie eine präzise semiklassische Beschreibung zeigt, ist die klassische Dynamik der Zee-Konfiguration nahezu integrabel.Dynamische (Anderson-) Lokalisierung hemmt die elektronische Anregung atomarer Systeme im elektromagnetischen Feld. Wir weisen Lokalisierung in Zee-Helium anhand verminderter Photoionisation durch ein Mikrowellenfeld nach. In Gegenwart rascher Autoionisation in eZe-Rydbergatomen machen wir dynamische Lokalisierung direkt durch das exponentiell abfallende Anregungsprofil im Energieraum sichtbar. Wir verändern die Stärke der Coulomb-Abstoßung und die anfängliche Anregung der beiden Elektronen, um den Einfluss der Wechselwirkung der Teilchen auf den Lokalisierungsprozess zu untersuchen. Dies stellt eine Fragestellung von grundlegendem Interesse in der AMO-Physik ebenso wie in der Physik der kon ...']]
### GND ID:
['gnd:1075945801', 'gnd:4012974-3', 'gnd:4142388-4', 'gnd:4143686-6', 'gnd:4174506-1', 'gnd:4316104-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834505940']
### GND class:
['Jörder, Felix', 'Dreikörperproblem', 'Anderson-Lokalisation', 'Autoionisation', 'Fotoionisation', 'Chaotisches System']
<|eot_id|> |
3A834506203.jsonld | ['Investigation and characterization of crystalline silicon solar cells for indoor and low light applications'] | ['Zusammenfassung: Energy harvesting systems are electronic systems which harvest the needed energy from the ambiance and which are thus self-sufficient. Such systems find application in rather remote outdoor areas (e.g. in forests) or indoors. In both application scenarios, the available illumination densities are two to three orders of magnitude below the given illumination densities in standard photovoltaic applications. Therefore, the solar cell behavior under low illumination densities (0.1 mW/cm² to 10 mW/cm²) and underartificial light sources is of importance for the application of solar cells in energy harvesting systems. Within this work, the current state of the art for solar cells in indoorand low light applications is presented with the focus on solar cell characterization and optimization. This work offers new findings and approaches in both fields.For the characterization of solar cells under low illumination densities and underartificial light sources, three different characterization methods or approaches are presented in this work'] | ['gnd:1076046630', 'gnd:4112704-3', 'gnd:4181740-0', 'gnd:4413737-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834506203'] | ['Rühle, Karola', 'Beleuchtung', 'Solarzelle', 'Intensitätsverteilung'] | Document
### Title: ['Investigation and characterization of crystalline silicon solar cells for indoor and low light applications']
### Abstract:
['Zusammenfassung: Energy harvesting systems are electronic systems which harvest the needed energy from the ambiance and which are thus self-sufficient. Such systems find application in rather remote outdoor areas (e.g. in forests) or indoors. In both application scenarios, the available illumination densities are two to three orders of magnitude below the given illumination densities in standard photovoltaic applications. Therefore, the solar cell behavior under low illumination densities (0.1 mW/cm² to 10 mW/cm²) and underartificial light sources is of importance for the application of solar cells in energy harvesting systems. Within this work, the current state of the art for solar cells in indoorand low light applications is presented with the focus on solar cell characterization and optimization. This work offers new findings and approaches in both fields.For the characterization of solar cells under low illumination densities and underartificial light sources, three different characterization methods or approaches are presented in this work']
### GND ID:
['gnd:1076046630', 'gnd:4112704-3', 'gnd:4181740-0', 'gnd:4413737-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834506203']
### GND class:
['Rühle, Karola', 'Beleuchtung', 'Solarzelle', 'Intensitätsverteilung']
<|eot_id|> |
3A834567326.jsonld | ['City growth in Europe'] | ['One of the most notable features of literature about "new economic geography" is a close association between theoretical and empirical work. In contrast to earlier research, theoretical studies are often much more strongly focused on real-world phenomena. At the same time, empirical work is often more closely tied to theoretical models. Instead of purely detecting possible stylized facts, considerable efforts have been made to test for the relevance of theoretical results. A major shortcoming of recent empirical work in urban economics is, however, the startling concentration on basically only two estimation strategies. Probably driven by limited data availability, most analyses are either cross-country studies which usually seek to explore a data set as rich as possible, or the studies examine single country data and then often focus on U.S. experiences. This book aims to provide a new - European - perspective. The basic idea is that a focus on European cities, apart from being interesting for itself, allows to combine both previous approaches. In particular, there is considerable cross-country variation while, in addition, also reliable historical data is available. Therefore, it is one of the contributions to compile a new data set of European cities which covers 13 countries and ranges from 1870 to 1990. This set of data is then applied to explore several hypotheses which have been recently proposed in literature. In particular, three sets of issues are discussed: the growth pattern of cities and their implications for Zipf\'s law, the relationship between trade openness and urban concentration, and the role of history for city growth. The results are often striking. In contrast to some previous findings, for instance, there is only weak evidence for random growth across cities. Also, the empirical evidence for an association between external trade and internal geography turns out to be shaky. Finally, it is argued that the urban dominance of Vienna after the dissolution of the Austro-Hungarian Empire in 1918 is evidence in favor of path dependence in city growth. Taken together, the book shows that the European experience provides a rich laboratory of real-world data which still waits to be explored'] | ['gnd:171577957', 'gnd:4015701-5', 'gnd:4056723-0', 'gnd:4056730-8', 'gnd:4064115-6', 'gnd:4121889-9', 'gnd:4182752-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834567326'] | ['Nitsch, Volker', 'Europa', 'Stadt', 'Stadtentwicklung', 'Wachstum', 'Wachstumspfad', 'Stadtökonomie'] | Document
### Title: ['City growth in Europe']
### Abstract:
['One of the most notable features of literature about "new economic geography" is a close association between theoretical and empirical work. In contrast to earlier research, theoretical studies are often much more strongly focused on real-world phenomena. At the same time, empirical work is often more closely tied to theoretical models. Instead of purely detecting possible stylized facts, considerable efforts have been made to test for the relevance of theoretical results. A major shortcoming of recent empirical work in urban economics is, however, the startling concentration on basically only two estimation strategies. Probably driven by limited data availability, most analyses are either cross-country studies which usually seek to explore a data set as rich as possible, or the studies examine single country data and then often focus on U.S. experiences. This book aims to provide a new - European - perspective. The basic idea is that a focus on European cities, apart from being interesting for itself, allows to combine both previous approaches. In particular, there is considerable cross-country variation while, in addition, also reliable historical data is available. Therefore, it is one of the contributions to compile a new data set of European cities which covers 13 countries and ranges from 1870 to 1990. This set of data is then applied to explore several hypotheses which have been recently proposed in literature. In particular, three sets of issues are discussed: the growth pattern of cities and their implications for Zipf\'s law, the relationship between trade openness and urban concentration, and the role of history for city growth. The results are often striking. In contrast to some previous findings, for instance, there is only weak evidence for random growth across cities. Also, the empirical evidence for an association between external trade and internal geography turns out to be shaky. Finally, it is argued that the urban dominance of Vienna after the dissolution of the Austro-Hungarian Empire in 1918 is evidence in favor of path dependence in city growth. Taken together, the book shows that the European experience provides a rich laboratory of real-world data which still waits to be explored']
### GND ID:
['gnd:171577957', 'gnd:4015701-5', 'gnd:4056723-0', 'gnd:4056730-8', 'gnd:4064115-6', 'gnd:4121889-9', 'gnd:4182752-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834567326']
### GND class:
['Nitsch, Volker', 'Europa', 'Stadt', 'Stadtentwicklung', 'Wachstum', 'Wachstumspfad', 'Stadtökonomie']
<|eot_id|> |
3A834567490.jsonld | ['Bargaining theory and fairness : a theoretical and experimental approach considering freedom of choice and the crowding-out of intrinsic motivation'] | ['Two new bargaining games, called "Freedom to Punish (FTP)" and "Right and Choice to Punish (RAP)", are developed, analyzed and tested by means of an experimental implementation. Hypotheses about behavior are developed, discussed and tested. The central hypotheses are aimed at the importance of freedom of choice, on the difference between the FTP game and the RAP game, and on the crowding-out of intrinsic motivation. As might have been expected, fairness plays a role in both games, represented by the frequent appearances of equal splits as well as by the frequent rejections of unfair offers. In addition to that, fairness was crowded out by the new Institution of a veto power decision, confirming the importance of the institutional setting for behavior. Contrary to the few veto power sales in the RAP game, an amazingly high number of receivers refrained from veto power in the FTP game. This significant difference has clearly been attributed to the different information conditions and the existence of a bonus. This bonus can be interpreted in terms of freedom of choice, and exploits a value for the freedom to choose for the first time in experimental economics'] | ['gnd:4120603-4', 'gnd:4136411-9', 'gnd:4139583-9', 'gnd:4153589-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834567490'] | ['Kooperatives Spiel', 'Intrinsische Motivation', 'Verhandlungstheorie', 'Fairness'] | Document
### Title: ['Bargaining theory and fairness : a theoretical and experimental approach considering freedom of choice and the crowding-out of intrinsic motivation']
### Abstract:
['Two new bargaining games, called "Freedom to Punish (FTP)" and "Right and Choice to Punish (RAP)", are developed, analyzed and tested by means of an experimental implementation. Hypotheses about behavior are developed, discussed and tested. The central hypotheses are aimed at the importance of freedom of choice, on the difference between the FTP game and the RAP game, and on the crowding-out of intrinsic motivation. As might have been expected, fairness plays a role in both games, represented by the frequent appearances of equal splits as well as by the frequent rejections of unfair offers. In addition to that, fairness was crowded out by the new Institution of a veto power decision, confirming the importance of the institutional setting for behavior. Contrary to the few veto power sales in the RAP game, an amazingly high number of receivers refrained from veto power in the FTP game. This significant difference has clearly been attributed to the different information conditions and the existence of a bonus. This bonus can be interpreted in terms of freedom of choice, and exploits a value for the freedom to choose for the first time in experimental economics']
### GND ID:
['gnd:4120603-4', 'gnd:4136411-9', 'gnd:4139583-9', 'gnd:4153589-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834567490']
### GND class:
['Kooperatives Spiel', 'Intrinsische Motivation', 'Verhandlungstheorie', 'Fairness']
<|eot_id|> |
3A834582376.jsonld | ['Advanced Visual Interfaces for Informed Decision-Making'] | ['This thesis presents new interactive visualization techniques and systems intended to support users with real-world decisions such as selecting a product from a large variety of similar offerings, finding appropriate wording as a non-native speaker, and assessing an alleged case of plagiarism. The Product Explorer is a significantly improved interactive Parallel Coordinates display for facilitating the product selection process in cases where many attributes and numerous alternatives have to be considered. A novel visual representation for categorical and ordered data with only few occurring values, the so-called extended areas, in combination with cubic curves for connecting the parallel axes, are crucial for providing an effective overview of the entire dataset and to facilitate the tracing of individual products. The visual query interface supports users in quickly narrowing down the product search to a small subset or even a single product. The scalability of the approach towards a large number of attributes and products is enhanced by the possibility of setting some constraints on final attributes and, therefore, reducing the number of considered attributes and data items. Furthermore, an attribute repository allows users to focus on the most important attributes at first and to bring in additional criteria for product selection later in the decision process. A user study confirmed that the Product Explorer is indeed an excellent tool for its intended purpose for casual users. The Wordgraph is a layered graph visualization for the interactive exploration of search results for complex keywords-in-context queries. The system relies on the Netspeak web service and is designed to support non-native speakers in finding customary phrases. Uncertainties about the commonness of phrases are expressed with the help of wildcard-based queries. The visualization presents the alternatives for the wildcards in a multi-column layout: one column per wildcard with the other query fragments in between. The Wordgraph visualization displays the sorted results for all wildcards at once by appropriately arranging the words of each column. A user study confirmed that this is a significant advantage over simple textual result lists. Furthermore, visual interfaces to filter, navigate, and expand the graph allow interactive refinement and expansion of wildcard-containing queries. Furthermore, this thesis presents an advanced visual analysis tool for assessing and presenting alleged cases of plagiarism and provides a three-level approach for exploring the so-called finding spots in their context. The overview shows the relationship of the entire suspicious document to the set of source documents. An intermediate glyph-based view reveals the structural and textual differences and similarities of a set of finding spots and their corresponding source text fragments. Eventually, the actual fragments of the finding spot can be shown in a side-by-side view with a novel structured wrapping of both the source, as well as the suspicious text. The three different levels of detail are tied together by versatile navigation and selection operations. Reviews with plagiarism experts confirm that this tool can effectively support their workflow and provides a significant improvement over existing static visualizations for assessing and presenting plagiarism cases. The three main contributions of this research have a lot in common aside from being carefully designed and scientifically grounded solutions to real-world decision problems. The first two visualizations facilitate the decision for a single possibility out of many alternatives, whereas the latter ones deal with text at varying levels of detail. All visual representations are clearly structured based on horizontal and vertical layers contained in a single view and they all employ edges for depicting the most important relationships between attributes, words, or different levels of detail. A detailed analysis considering the context of the established decision-making literature reveals that important steps of common decision models are well-supported by the three visualization systems presented in this thesis.'] | ['gnd:4046196-8', 'gnd:4132784-6', 'gnd:4188417-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834582376'] | ['Plagiat', 'Informationsbeschaffung', 'Visualisierung'] | Document
### Title: ['Advanced Visual Interfaces for Informed Decision-Making']
### Abstract:
['This thesis presents new interactive visualization techniques and systems intended to support users with real-world decisions such as selecting a product from a large variety of similar offerings, finding appropriate wording as a non-native speaker, and assessing an alleged case of plagiarism. The Product Explorer is a significantly improved interactive Parallel Coordinates display for facilitating the product selection process in cases where many attributes and numerous alternatives have to be considered. A novel visual representation for categorical and ordered data with only few occurring values, the so-called extended areas, in combination with cubic curves for connecting the parallel axes, are crucial for providing an effective overview of the entire dataset and to facilitate the tracing of individual products. The visual query interface supports users in quickly narrowing down the product search to a small subset or even a single product. The scalability of the approach towards a large number of attributes and products is enhanced by the possibility of setting some constraints on final attributes and, therefore, reducing the number of considered attributes and data items. Furthermore, an attribute repository allows users to focus on the most important attributes at first and to bring in additional criteria for product selection later in the decision process. A user study confirmed that the Product Explorer is indeed an excellent tool for its intended purpose for casual users. The Wordgraph is a layered graph visualization for the interactive exploration of search results for complex keywords-in-context queries. The system relies on the Netspeak web service and is designed to support non-native speakers in finding customary phrases. Uncertainties about the commonness of phrases are expressed with the help of wildcard-based queries. The visualization presents the alternatives for the wildcards in a multi-column layout: one column per wildcard with the other query fragments in between. The Wordgraph visualization displays the sorted results for all wildcards at once by appropriately arranging the words of each column. A user study confirmed that this is a significant advantage over simple textual result lists. Furthermore, visual interfaces to filter, navigate, and expand the graph allow interactive refinement and expansion of wildcard-containing queries. Furthermore, this thesis presents an advanced visual analysis tool for assessing and presenting alleged cases of plagiarism and provides a three-level approach for exploring the so-called finding spots in their context. The overview shows the relationship of the entire suspicious document to the set of source documents. An intermediate glyph-based view reveals the structural and textual differences and similarities of a set of finding spots and their corresponding source text fragments. Eventually, the actual fragments of the finding spot can be shown in a side-by-side view with a novel structured wrapping of both the source, as well as the suspicious text. The three different levels of detail are tied together by versatile navigation and selection operations. Reviews with plagiarism experts confirm that this tool can effectively support their workflow and provides a significant improvement over existing static visualizations for assessing and presenting plagiarism cases. The three main contributions of this research have a lot in common aside from being carefully designed and scientifically grounded solutions to real-world decision problems. The first two visualizations facilitate the decision for a single possibility out of many alternatives, whereas the latter ones deal with text at varying levels of detail. All visual representations are clearly structured based on horizontal and vertical layers contained in a single view and they all employ edges for depicting the most important relationships between attributes, words, or different levels of detail. A detailed analysis considering the context of the established decision-making literature reveals that important steps of common decision models are well-supported by the three visualization systems presented in this thesis.']
### GND ID:
['gnd:4046196-8', 'gnd:4132784-6', 'gnd:4188417-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834582376']
### GND class:
['Plagiat', 'Informationsbeschaffung', 'Visualisierung']
<|eot_id|> |
3A834650320.jsonld | ['Prehistoric mobility and diet in Western Eurasia steppes 3500 to 300 BC : an isotopic approach'] | [['Frontmatter -- Table of Contents -- Acknowledgements -- 1. Introduction -- 2. Background -- 3. Sample sites and Material -- 4. Mobility and Migration -- 5. Case study: Faunal mobility in the context of the Globular Amphora culture -- 6. Palaeodiet -- 7. Summaries in English, German and Russian -- 8. Bibliography -- Appendices', 'Questions concerning mobility and migration as well as subsistence strategies of past societies have always been of major importance in archaeological research. The West Eurasian steppes in the Eneolithic, the Early Bronze and the Iron Age were largely inhabited by cultural communities believed to show an elevated level of spatial mobility, often linked to their subsistence economy. In this volume, questions concerning the mobility and potential migration as well as the diet and economy of the West Eurasian steppes communities during the 4th, the 3rd and the 1st Millennia BC are approached by applying isotope analysis, specifically 87Sr/86Sr, δ18O, δ15N and δ13C analyses. Adapting a combination of different isotopic systems to a study area of vast spatial and chronological dimension allowed a wide variety of questions to be answered and establishes the beginning of a database of biogeochemical data for the West Eurasian steppes. Besides the characterisation of mobility and subsistence patterns of the archaeological communities under discussion, attempts to identify possible Early Bronze Age migrations from the steppes to the steppe-like plains in parts of Eastern Europe were made, alongside an evaluation of the applicability of isotope analysis to this context']] | ['gnd:1043003428', 'gnd:4015332-0', 'gnd:4076600-7', 'gnd:4120730-0', 'gnd:4499495-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834650320'] | ['Gerling, Claudia', 'Ernährung', 'Regionale Mobilität', 'Migration', 'Eurasien'] | Document
### Title: ['Prehistoric mobility and diet in Western Eurasia steppes 3500 to 300 BC : an isotopic approach']
### Abstract:
[['Frontmatter -- Table of Contents -- Acknowledgements -- 1. Introduction -- 2. Background -- 3. Sample sites and Material -- 4. Mobility and Migration -- 5. Case study: Faunal mobility in the context of the Globular Amphora culture -- 6. Palaeodiet -- 7. Summaries in English, German and Russian -- 8. Bibliography -- Appendices', 'Questions concerning mobility and migration as well as subsistence strategies of past societies have always been of major importance in archaeological research. The West Eurasian steppes in the Eneolithic, the Early Bronze and the Iron Age were largely inhabited by cultural communities believed to show an elevated level of spatial mobility, often linked to their subsistence economy. In this volume, questions concerning the mobility and potential migration as well as the diet and economy of the West Eurasian steppes communities during the 4th, the 3rd and the 1st Millennia BC are approached by applying isotope analysis, specifically 87Sr/86Sr, δ18O, δ15N and δ13C analyses. Adapting a combination of different isotopic systems to a study area of vast spatial and chronological dimension allowed a wide variety of questions to be answered and establishes the beginning of a database of biogeochemical data for the West Eurasian steppes. Besides the characterisation of mobility and subsistence patterns of the archaeological communities under discussion, attempts to identify possible Early Bronze Age migrations from the steppes to the steppe-like plains in parts of Eastern Europe were made, alongside an evaluation of the applicability of isotope analysis to this context']]
### GND ID:
['gnd:1043003428', 'gnd:4015332-0', 'gnd:4076600-7', 'gnd:4120730-0', 'gnd:4499495-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A834650320']
### GND class:
['Gerling, Claudia', 'Ernährung', 'Regionale Mobilität', 'Migration', 'Eurasien']
<|eot_id|> |
3A835046427.jsonld | ['Business process architectures concepts, formalism, and analysis'] | ['Business Process Management has become an integral part of modern organizations in the private and public sector for improving their operations. In the course of Business Process Management efforts, companies and organizations assemble large process model repositories with many hundreds and thousands of business process models bearing a large amount of information. With the advent of large business process model collections, new challenges arise as structuring and managing a large amount of process models, their maintenance, and their quality assurance. This is covered by business process architectures that have been introduced for organizing and structuring business process model collections. A variety of business process architecture approaches have been proposed that align business processes along aspects of interest, e. g., goals, functions, or objects. They provide a high level categorization of single processes ignoring their interdependencies, thus hiding valuable information. The production of goods or the delivery of service…'] | ['gnd:1076588727', 'gnd:4353072-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835046427'] | ['Eid-Sabbagh, Rami-Habib', 'Prozessmanagement'] | Document
### Title: ['Business process architectures concepts, formalism, and analysis']
### Abstract:
['Business Process Management has become an integral part of modern organizations in the private and public sector for improving their operations. In the course of Business Process Management efforts, companies and organizations assemble large process model repositories with many hundreds and thousands of business process models bearing a large amount of information. With the advent of large business process model collections, new challenges arise as structuring and managing a large amount of process models, their maintenance, and their quality assurance. This is covered by business process architectures that have been introduced for organizing and structuring business process model collections. A variety of business process architecture approaches have been proposed that align business processes along aspects of interest, e. g., goals, functions, or objects. They provide a high level categorization of single processes ignoring their interdependencies, thus hiding valuable information. The production of goods or the delivery of service…']
### GND ID:
['gnd:1076588727', 'gnd:4353072-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835046427']
### GND class:
['Eid-Sabbagh, Rami-Habib', 'Prozessmanagement']
<|eot_id|> |
3A835204294.jsonld | ['Stakeholder participation in the creation of spatial plan for Nature Park Medvednica'] | ['Zusammenfassung: Nature Park Medvednica is a mountainous protected area in central Croatia, located on the north edge of Zagreb, the country’s capital city. Nature Park is a national category of protection in which sustainable usage of resources is allowed and where the protection is set around a particularly valuable natural phenomenon. In the case of Nature Park Medvednica, the phenomenon lays in its forest habitats, which cover eight different forest phytocenosis. The legal basis for the management of nature parks are spatial plans specifically designated for those areas, from which more detailed and non-legally binding management plans are to be established. Spatial plans come to power when they are ratified by the Parliament, and in the case of NP Medvednica the practical spatial planning was done by the local administration of the City of Zagreb'] | ['gnd:1076481868', 'gnd:4006092-5', 'gnd:4115348-0', 'gnd:4304487-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835204294'] | ['Lovrić, Nataša', 'Beteiligung', 'Naturschutz', 'Agramer Gebirge'] | Document
### Title: ['Stakeholder participation in the creation of spatial plan for Nature Park Medvednica']
### Abstract:
['Zusammenfassung: Nature Park Medvednica is a mountainous protected area in central Croatia, located on the north edge of Zagreb, the country’s capital city. Nature Park is a national category of protection in which sustainable usage of resources is allowed and where the protection is set around a particularly valuable natural phenomenon. In the case of Nature Park Medvednica, the phenomenon lays in its forest habitats, which cover eight different forest phytocenosis. The legal basis for the management of nature parks are spatial plans specifically designated for those areas, from which more detailed and non-legally binding management plans are to be established. Spatial plans come to power when they are ratified by the Parliament, and in the case of NP Medvednica the practical spatial planning was done by the local administration of the City of Zagreb']
### GND ID:
['gnd:1076481868', 'gnd:4006092-5', 'gnd:4115348-0', 'gnd:4304487-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835204294']
### GND class:
['Lovrić, Nataša', 'Beteiligung', 'Naturschutz', 'Agramer Gebirge']
<|eot_id|> |
3A835204510.jsonld | ['Long-term stability of organic solar cells'] | ['Zusammenfassung: Organic solar cells bear the potential to be used as flexible, light weight and cheap source of renewable energy. Efficiency, long lifetime and low cost are the important factors for the successful application of this technology. Significant improvement in the power conversion efficiency in the past few years brought lifetime of organic solar cells into focus. Encapsulation assists to achieve long lifetime by protecting organic solar cells against different aging factors like oxygen and moisture. Understanding of degradation mechanisms further helps to develop different strategies to prolong the lifetime.The experimental work of this thesis is divided into two parts. The first part deals with the evaluation of various encapsulation and barrier materials under different aging conditions such as elevated temperature, continuous illumination, UV stress, damp heat and outdoor exposure. In the second part, detailed investigations of degradation mechanisms under different aging conditions (mainly under UV-stress and damp heat) and strategies how to minimize the degradation are presented.A promising lifetime of more than 12 000 hours both under elevated temperature of 85°C, ambient air in the dark and continuous illumination of 1000 W/m² was demonstrated with less than 10 % degradation for encapsulated devices. Similar devices showed less than 20 % degradation after one complete year of outdoor exposure. Further, completely flexible encapsulated devices also exhibited > 95 % of their initial device performance after 1000 hours of aging under damp heat, successfully fulfilling the standard test condition set by the IEC61646 under 85°C/85 % rh.In contrast, devices exhibited comparably fast degradation in presence of UV radiation resulting in more than 50 % degradation within 1000 hours of aging. The observed degradation under UV radiation was found to be characterized by a drop in fill factor and short circuit current density. Additional experiments revealed an increase in the sheet resistance of the PEDOT:PSS hole transport layer. Numerical simulations based on an effective semiconductor model using experimentally observed sheet resistance values were carried out. Simulation results were found to be in good agreement with experimental observations. The use of high conductive or UV stable PEDOT:PSS formulations, high post annealing temperature ensuring better removal of moisture or an additional UV filter were proven as possible routes for retar ...'] | ['gnd:1076509630', 'gnd:4056693-6', 'gnd:7617672-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835204510'] | ['Sapkota, Subarna Babu', 'Stabilität', 'Organische Solarzelle'] | Document
### Title: ['Long-term stability of organic solar cells']
### Abstract:
['Zusammenfassung: Organic solar cells bear the potential to be used as flexible, light weight and cheap source of renewable energy. Efficiency, long lifetime and low cost are the important factors for the successful application of this technology. Significant improvement in the power conversion efficiency in the past few years brought lifetime of organic solar cells into focus. Encapsulation assists to achieve long lifetime by protecting organic solar cells against different aging factors like oxygen and moisture. Understanding of degradation mechanisms further helps to develop different strategies to prolong the lifetime.The experimental work of this thesis is divided into two parts. The first part deals with the evaluation of various encapsulation and barrier materials under different aging conditions such as elevated temperature, continuous illumination, UV stress, damp heat and outdoor exposure. In the second part, detailed investigations of degradation mechanisms under different aging conditions (mainly under UV-stress and damp heat) and strategies how to minimize the degradation are presented.A promising lifetime of more than 12 000 hours both under elevated temperature of 85°C, ambient air in the dark and continuous illumination of 1000 W/m² was demonstrated with less than 10 % degradation for encapsulated devices. Similar devices showed less than 20 % degradation after one complete year of outdoor exposure. Further, completely flexible encapsulated devices also exhibited > 95 % of their initial device performance after 1000 hours of aging under damp heat, successfully fulfilling the standard test condition set by the IEC61646 under 85°C/85 % rh.In contrast, devices exhibited comparably fast degradation in presence of UV radiation resulting in more than 50 % degradation within 1000 hours of aging. The observed degradation under UV radiation was found to be characterized by a drop in fill factor and short circuit current density. Additional experiments revealed an increase in the sheet resistance of the PEDOT:PSS hole transport layer. Numerical simulations based on an effective semiconductor model using experimentally observed sheet resistance values were carried out. Simulation results were found to be in good agreement with experimental observations. The use of high conductive or UV stable PEDOT:PSS formulations, high post annealing temperature ensuring better removal of moisture or an additional UV filter were proven as possible routes for retar ...']
### GND ID:
['gnd:1076509630', 'gnd:4056693-6', 'gnd:7617672-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835204510']
### GND class:
['Sapkota, Subarna Babu', 'Stabilität', 'Organische Solarzelle']
<|eot_id|> |
3A835214885.jsonld | ['Transatlantischer Föderalismus : zur politischen Sprache des Föderalismus im Zeitalter der Revolutionen, 1787-1848'] | [['"During the era of revolutions, the notion of federalism was renegotiated based on the experience of revolutionary upheaval. In a comparative study of historical transfer, the author shows the ways that the semantics of federalism circulated in transatlantic intellectual networks to be invoked and transformed in relation to conflicts in North America, Germany, France, and Switzerland"--Provided by publisher', 'Einleitung -- Neither a national nor a federal constitution, but a composition of both? : Föderalismussemantik und historische Erfahrungsdeutung in Nordamerika -- Fédéralisme und die eine und unteilbare Republik -- Föderativnation, Staatenbund und Bundesstaat : Föderalismussemantik und historische Erfahrungsdeutung in Deutschland -- Zwischen den Extremen : Föderalismussemantik und historische Erfahrungsdeutung in der Schweiz -- Albert Gallatin und die Metamorphosen des republikanischen Föderalismus -- Lafayette, die "école américaine" und das fragile Gleichgewicht zwischen Freiheit und Revolution -- Stranger in America : Francis Lieber und die politische Hermeneutik des amerikanischen Föderalismus -- Edward Everett, Jared Sparks und die Geschichte der amerikanischen Föderativrepublik im Spiegel Europas -- Alexis de Tocqueville, Jacksonian democracy und die föderale Bändigung der Tyrannei der Mehrheit -- Bundesstaat ohne Demokratie? : Föderalismusinterpretationen in der deutschen Staatslehre bei Robert Mohl und K.J.A. Mittermaier -- 1848 und die politische Sprache des Föderalismus']] | ['gnd:109093307X', 'gnd:4017754-3', 'gnd:4046559-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835214885'] | ['Auderset, Juri', 'Föderalismus', 'Politische Sprache'] | Document
### Title: ['Transatlantischer Föderalismus : zur politischen Sprache des Föderalismus im Zeitalter der Revolutionen, 1787-1848']
### Abstract:
[['"During the era of revolutions, the notion of federalism was renegotiated based on the experience of revolutionary upheaval. In a comparative study of historical transfer, the author shows the ways that the semantics of federalism circulated in transatlantic intellectual networks to be invoked and transformed in relation to conflicts in North America, Germany, France, and Switzerland"--Provided by publisher', 'Einleitung -- Neither a national nor a federal constitution, but a composition of both? : Föderalismussemantik und historische Erfahrungsdeutung in Nordamerika -- Fédéralisme und die eine und unteilbare Republik -- Föderativnation, Staatenbund und Bundesstaat : Föderalismussemantik und historische Erfahrungsdeutung in Deutschland -- Zwischen den Extremen : Föderalismussemantik und historische Erfahrungsdeutung in der Schweiz -- Albert Gallatin und die Metamorphosen des republikanischen Föderalismus -- Lafayette, die "école américaine" und das fragile Gleichgewicht zwischen Freiheit und Revolution -- Stranger in America : Francis Lieber und die politische Hermeneutik des amerikanischen Föderalismus -- Edward Everett, Jared Sparks und die Geschichte der amerikanischen Föderativrepublik im Spiegel Europas -- Alexis de Tocqueville, Jacksonian democracy und die föderale Bändigung der Tyrannei der Mehrheit -- Bundesstaat ohne Demokratie? : Föderalismusinterpretationen in der deutschen Staatslehre bei Robert Mohl und K.J.A. Mittermaier -- 1848 und die politische Sprache des Föderalismus']]
### GND ID:
['gnd:109093307X', 'gnd:4017754-3', 'gnd:4046559-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835214885']
### GND class:
['Auderset, Juri', 'Föderalismus', 'Politische Sprache']
<|eot_id|> |
3A835349276.jsonld | ['Non-viscous calculation of propeller forces under consideration of free surface effects'] | [['This thesis reports on the development of numerical methods for the determination of propeller loads for propellers operating under free water surface influences and due to ventilation. The numerical methods are potential-based and different approaches with a boundary element method and a solver coupling approach between a boundary element method and a RANSE solver are developed. The boundary conditions at the free water surface are implemented in the boundary element method in a steady and an unsteady formulation and a validation is given for computed results against experimental data. Unsteady forces and moments are computed for propellers with shallow immersion, propellers with shallow immersion in waves and for ventilating propellers. The results of the numerical methods are compared to experimental results.$cen$dAbstract', 'In dieser Arbeit werden numerische Methoden entwickelt, mit denen die dynamischen Wechsellasten, die auf Schiffspropeller unter Einfluss der freien Wasseroberfläche oder unter Ventilationseinfluss wirken, berechnet werden können. Die numerischen Methoden sind potentialbasiert, eine Randelementmethode und eine Kopplungsmethode zwischen einer Randelementmethode und einem RANSE Löser werden entwickelt. Die Randbedingungen an der freien Wasseroberfläche werden in einer stationären und einer instationären Formulierung in die Randelementmethode implementiert und die Ergebnisse werden mit Messdaten validiert. Die instationären Kräfte und Momente, welche für Propeller berechnet werden, die gering getaucht sind, oder Propellern, die gering getaucht sind und im Einfluss von Wellen operieren, werden Messdaten gegenübergestellt.$cde$dAbstract']] | ['gnd:10194305-2', 'gnd:1120050685', 'gnd:140779663', 'gnd:140779922', 'gnd:4138452-0', 'gnd:4172260-7', 'gnd:4690080-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835349276'] | ['Technische Universität Hamburg-Harburg, Institut für Fluiddynamik und Schiffstheorie', 'Greve, Martin', 'Krüger, Stefan', 'Abdel-Maksoud, Moustafa', 'Schiffspropeller', 'Oberflächenströmung', 'Numerische Strömungssimulation'] | Document
### Title: ['Non-viscous calculation of propeller forces under consideration of free surface effects']
### Abstract:
[['This thesis reports on the development of numerical methods for the determination of propeller loads for propellers operating under free water surface influences and due to ventilation. The numerical methods are potential-based and different approaches with a boundary element method and a solver coupling approach between a boundary element method and a RANSE solver are developed. The boundary conditions at the free water surface are implemented in the boundary element method in a steady and an unsteady formulation and a validation is given for computed results against experimental data. Unsteady forces and moments are computed for propellers with shallow immersion, propellers with shallow immersion in waves and for ventilating propellers. The results of the numerical methods are compared to experimental results.$cen$dAbstract', 'In dieser Arbeit werden numerische Methoden entwickelt, mit denen die dynamischen Wechsellasten, die auf Schiffspropeller unter Einfluss der freien Wasseroberfläche oder unter Ventilationseinfluss wirken, berechnet werden können. Die numerischen Methoden sind potentialbasiert, eine Randelementmethode und eine Kopplungsmethode zwischen einer Randelementmethode und einem RANSE Löser werden entwickelt. Die Randbedingungen an der freien Wasseroberfläche werden in einer stationären und einer instationären Formulierung in die Randelementmethode implementiert und die Ergebnisse werden mit Messdaten validiert. Die instationären Kräfte und Momente, welche für Propeller berechnet werden, die gering getaucht sind, oder Propellern, die gering getaucht sind und im Einfluss von Wellen operieren, werden Messdaten gegenübergestellt.$cde$dAbstract']]
### GND ID:
['gnd:10194305-2', 'gnd:1120050685', 'gnd:140779663', 'gnd:140779922', 'gnd:4138452-0', 'gnd:4172260-7', 'gnd:4690080-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835349276']
### GND class:
['Technische Universität Hamburg-Harburg, Institut für Fluiddynamik und Schiffstheorie', 'Greve, Martin', 'Krüger, Stefan', 'Abdel-Maksoud, Moustafa', 'Schiffspropeller', 'Oberflächenströmung', 'Numerische Strömungssimulation']
<|eot_id|> |
3A835378535.jsonld | ['Factors controlling the lipid composition of marine planktonic Thaumarchaeota'] | ['Thaumarchaeota, TEX86, paleotemperature, sea surface temperature, proxy, paleothermometer, paleoceanography, Archaea, Ammonia-oxidizing archaea, GDGT, Crenarchaeol, Nitrosopumilus maritimus, Respiratory quinones, IPL, Membrane lipids, intact polar lipids, biosynthesis, lipidome, menaquinone, glycerol dibiphytanyl glycerol tetraether. - Marine ammonia-oxidizing archaea of the phylum Thaumarchaeota synthesize glycerol dibiphytanyl glycerol tetraether (GDGT) membrane lipids that are used as for the reconstruction of sea surface temperatures by means of the TEX86 paleothermometer. Discrepancies between observed and predicted TEX86-temperatures throughout the global ocean indicate that the physiological and ecological controls on lipid composition in planktonic Thaumarchaeota remain poorly understood. In this thesis, the influence of growth phase, temperature, pH, and salinity on the membrane lipid composition of Thaumarchaeota were investigated. The results indicate that TEX86 is not only influenced by temperature but similarly by growth phase and community composition, which compromises its utility as a paleothermometer. A comprehensive study of the lipidomes of 11 thaumarchaeal cultures revealed that Thaumarchaeota contain a high diversity of membrane lipids that is related to phylogeny as well as growth characteristics. This analysis further revealed that all Thaumarchaeota contain the specific biomarkers crenarchaeol, methoxy archaeol, and saturated menaquinone-6.'] | ['gnd:4002825-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835378535'] | ['Archaebakterien'] | Document
### Title: ['Factors controlling the lipid composition of marine planktonic Thaumarchaeota']
### Abstract:
['Thaumarchaeota, TEX86, paleotemperature, sea surface temperature, proxy, paleothermometer, paleoceanography, Archaea, Ammonia-oxidizing archaea, GDGT, Crenarchaeol, Nitrosopumilus maritimus, Respiratory quinones, IPL, Membrane lipids, intact polar lipids, biosynthesis, lipidome, menaquinone, glycerol dibiphytanyl glycerol tetraether. - Marine ammonia-oxidizing archaea of the phylum Thaumarchaeota synthesize glycerol dibiphytanyl glycerol tetraether (GDGT) membrane lipids that are used as for the reconstruction of sea surface temperatures by means of the TEX86 paleothermometer. Discrepancies between observed and predicted TEX86-temperatures throughout the global ocean indicate that the physiological and ecological controls on lipid composition in planktonic Thaumarchaeota remain poorly understood. In this thesis, the influence of growth phase, temperature, pH, and salinity on the membrane lipid composition of Thaumarchaeota were investigated. The results indicate that TEX86 is not only influenced by temperature but similarly by growth phase and community composition, which compromises its utility as a paleothermometer. A comprehensive study of the lipidomes of 11 thaumarchaeal cultures revealed that Thaumarchaeota contain a high diversity of membrane lipids that is related to phylogeny as well as growth characteristics. This analysis further revealed that all Thaumarchaeota contain the specific biomarkers crenarchaeol, methoxy archaeol, and saturated menaquinone-6.']
### GND ID:
['gnd:4002825-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835378535']
### GND class:
['Archaebakterien']
<|eot_id|> |
3A83541468X.jsonld | ['Transparente leitfähige Elektrodenstrukturen aus Nanomaterialien'] | ['Nanomaterialien, Zinkoxid, Kohlenstoffnanoröhren, elektrische Leitfähigkeit, Transparenz, Sprühbeschichtung, chemische Badabscheidung. - Nanomaterials, zinc oxide, carbon nanotubes, electrical conductivity, transparency, spray-coating, chemical bath deposition'] | ['gnd:4151784-2', 'gnd:4190864-8', 'gnd:4581365-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83541468X'] | ['Elektrodenreaktion', 'Zinkoxid', 'Kohlenstoff-Nanoröhre'] | Document
### Title: ['Transparente leitfähige Elektrodenstrukturen aus Nanomaterialien']
### Abstract:
['Nanomaterialien, Zinkoxid, Kohlenstoffnanoröhren, elektrische Leitfähigkeit, Transparenz, Sprühbeschichtung, chemische Badabscheidung. - Nanomaterials, zinc oxide, carbon nanotubes, electrical conductivity, transparency, spray-coating, chemical bath deposition']
### GND ID:
['gnd:4151784-2', 'gnd:4190864-8', 'gnd:4581365-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83541468X']
### GND class:
['Elektrodenreaktion', 'Zinkoxid', 'Kohlenstoff-Nanoröhre']
<|eot_id|> |
3A835478459.jsonld | ['Head size variation within broccoli (Brassica oleracea var. italica) plantings, causes and prediction for decision support'] | ['Brassica oleracea L. var. italica, prediction of time to harvest, plant to plant variability. - Vorhersage der Zeit bis zur Ernte, Einzelpflanzenvariation'] | ['gnd:1077892446', 'gnd:4222003-8', 'gnd:4249225-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835478459'] | ['Lindemann-Zutz, Karsten', 'Broccoli', 'Ernteverfahren'] | Document
### Title: ['Head size variation within broccoli (Brassica oleracea var. italica) plantings, causes and prediction for decision support']
### Abstract:
['Brassica oleracea L. var. italica, prediction of time to harvest, plant to plant variability. - Vorhersage der Zeit bis zur Ernte, Einzelpflanzenvariation']
### GND ID:
['gnd:1077892446', 'gnd:4222003-8', 'gnd:4249225-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835478459']
### GND class:
['Lindemann-Zutz, Karsten', 'Broccoli', 'Ernteverfahren']
<|eot_id|> |
3A835683737.jsonld | ['Republiken als Blaupause : Venedig, die Niederlande und die Eidgenossenschaft im Reformdiskurs der Frühaufklärung'] | [['"Should refugees be regarded as an important economic factor? Can a federal commonwealth act in a politically effective manner? How can freedom and stability be guaranteed in the European power nexus? Contemporary republics incorporated the perspectives of political reformist thinking during the early Enlightenment. Across Europe, they became the focus of a new rational analysis, which sought to sound out possibilities for the present and future"--Provided by publisher', 'I. Republiken als Konstrukt : Aussagen vor 1650 -- II. Republiken auf dem Prüfstand : Modifikation der Aussagen, 1650-1676 -- III. Republiken als Blaupause : Normative Zielvorstellungen eines politischen Reformdiskurses, 1676-1750 -- IV. Republiken als Auslaufmodell : Modifikation der Aussagen, 1750 -- V. Schlussbetrachtung']] | ['gnd:1065492103', 'gnd:110254311X', 'gnd:2024349-2', 'gnd:4003524-4', 'gnd:4042203-3', 'gnd:4053881-3', 'gnd:4062501-1', 'gnd:4165095-5', 'gnd:4177823-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835683737'] | ['De Gruyter Oldenbourg', 'Weeber, Urte', 'Universität Heidelberg', 'Aufklärung', 'Niederlande', 'Schweiz', 'Venedig', 'Konstrukt', 'Republik'] | Document
### Title: ['Republiken als Blaupause : Venedig, die Niederlande und die Eidgenossenschaft im Reformdiskurs der Frühaufklärung']
### Abstract:
[['"Should refugees be regarded as an important economic factor? Can a federal commonwealth act in a politically effective manner? How can freedom and stability be guaranteed in the European power nexus? Contemporary republics incorporated the perspectives of political reformist thinking during the early Enlightenment. Across Europe, they became the focus of a new rational analysis, which sought to sound out possibilities for the present and future"--Provided by publisher', 'I. Republiken als Konstrukt : Aussagen vor 1650 -- II. Republiken auf dem Prüfstand : Modifikation der Aussagen, 1650-1676 -- III. Republiken als Blaupause : Normative Zielvorstellungen eines politischen Reformdiskurses, 1676-1750 -- IV. Republiken als Auslaufmodell : Modifikation der Aussagen, 1750 -- V. Schlussbetrachtung']]
### GND ID:
['gnd:1065492103', 'gnd:110254311X', 'gnd:2024349-2', 'gnd:4003524-4', 'gnd:4042203-3', 'gnd:4053881-3', 'gnd:4062501-1', 'gnd:4165095-5', 'gnd:4177823-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835683737']
### GND class:
['De Gruyter Oldenbourg', 'Weeber, Urte', 'Universität Heidelberg', 'Aufklärung', 'Niederlande', 'Schweiz', 'Venedig', 'Konstrukt', 'Republik']
<|eot_id|> |
3A835708950.jsonld | ['Empirische Studien zu Aspekten des Humankapitals : zweiter Bildungsweg, Mitgliedschaften, Pflichtdienste'] | ['Humankapital, zweiter Bildungsweg, Karriereunterbrechung, Mitgliedschaft, sozio-ökonomische Ergebnisse. - Human capital, second educational pathway, career interruption, membership, socio-economic outcomes'] | ['gnd:4015428-2', 'gnd:4065000-5', 'gnd:4068235-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835708950'] | ['Erwachsenenbildung', 'Wehrpflicht', 'Zweiter Bildungsweg'] | Document
### Title: ['Empirische Studien zu Aspekten des Humankapitals : zweiter Bildungsweg, Mitgliedschaften, Pflichtdienste']
### Abstract:
['Humankapital, zweiter Bildungsweg, Karriereunterbrechung, Mitgliedschaft, sozio-ökonomische Ergebnisse. - Human capital, second educational pathway, career interruption, membership, socio-economic outcomes']
### GND ID:
['gnd:4015428-2', 'gnd:4065000-5', 'gnd:4068235-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835708950']
### GND class:
['Erwachsenenbildung', 'Wehrpflicht', 'Zweiter Bildungsweg']
<|eot_id|> |
3A835921492.jsonld | ['Multiple classifier systems in human-computer interaction'] | ['Making the interaction of human subjects with technical systems more intuitive is a quickly emerging interdisciplinary field of research. One important aspect of this field is the surveillance of the user by the respective system and thus enabling it to estimate distinct user states. The automatic recognition of user states in human-computer interaction poses a great challenge to statistical pattern recognition for several reasons: The measurements of the different sensors are inherently heterogeneous in their technical properties, for example considering sample rates, range of values or resolution. Another important aspect is the fact that the true state of a subject is generally not entirely observable from the outside, which makes the design of corpora that study human-computer interaction extremely difficult. This leads in many cases to weakly or subjectively defined class labels by either using human test persons that annotate the collected material manually or by using externally triggered stimuli that are designed to elicit distinct predefined states. In order to approach the recognition of user states in human-computer interaction, the multi-modal and the temporal properties of the application are exploited in this work. For this purpose, different information fusion architectures based on multiple classifier system approaches and temporal integration techniques are introduced and discussed. Besides this, the incorporation of unlabeled data into the training of the classifier is a compelling issue since one is generally short of training data as described earlier. This work will introduce a partially supervised learning approach, that combines unsupervised and supervised learning in order to extend the amount of usable data. Finally, the problem of imbalanced class distributions is tackled by a class weighting mechanism in the training of support vector machines, which increases the loss for the underrepresented class.'] | ['gnd:1076804861', 'gnd:4125909-9', 'gnd:4193754-5', 'gnd:4784306-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835921492'] | ['Schels, Martin Benedikt', 'Mensch-Maschine-Kommunikation', 'Maschinelles Lernen', 'Affective Computing'] | Document
### Title: ['Multiple classifier systems in human-computer interaction']
### Abstract:
['Making the interaction of human subjects with technical systems more intuitive is a quickly emerging interdisciplinary field of research. One important aspect of this field is the surveillance of the user by the respective system and thus enabling it to estimate distinct user states. The automatic recognition of user states in human-computer interaction poses a great challenge to statistical pattern recognition for several reasons: The measurements of the different sensors are inherently heterogeneous in their technical properties, for example considering sample rates, range of values or resolution. Another important aspect is the fact that the true state of a subject is generally not entirely observable from the outside, which makes the design of corpora that study human-computer interaction extremely difficult. This leads in many cases to weakly or subjectively defined class labels by either using human test persons that annotate the collected material manually or by using externally triggered stimuli that are designed to elicit distinct predefined states. In order to approach the recognition of user states in human-computer interaction, the multi-modal and the temporal properties of the application are exploited in this work. For this purpose, different information fusion architectures based on multiple classifier system approaches and temporal integration techniques are introduced and discussed. Besides this, the incorporation of unlabeled data into the training of the classifier is a compelling issue since one is generally short of training data as described earlier. This work will introduce a partially supervised learning approach, that combines unsupervised and supervised learning in order to extend the amount of usable data. Finally, the problem of imbalanced class distributions is tackled by a class weighting mechanism in the training of support vector machines, which increases the loss for the underrepresented class.']
### GND ID:
['gnd:1076804861', 'gnd:4125909-9', 'gnd:4193754-5', 'gnd:4784306-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A835921492']
### GND class:
['Schels, Martin Benedikt', 'Mensch-Maschine-Kommunikation', 'Maschinelles Lernen', 'Affective Computing']
<|eot_id|> |
3A83602043X.jsonld | ['Gains and pains from the open innovation framework'] | ['While firms increasingly adopt open innovation, little is known about whether firms gain or lose from this innovation approach. Motivated by this research gap in the literature, the thesis explores the antecedents and performance implications of open innovation strategies, particularly collaboration and contractual forms of relationships for innovation (i.e. innovation cooperation and R&D outsourcing/external R&D). The thesis is empirical and relates the various results to the data used. The first one with German Community Innovation Survey (CIS), the second one with Danish CIS and the third one with the patent enhanced German CIS. The empirical analyses suggest that a value-enhancing objective rather than a cost-minimization purpose is the main factor that stimulates companies to engage in open innovation strategies. The research also reveals that firms engage in various innovation strategies simultaneously (i.e. international external R&D, innovation cooperation partnerships and internal R&D), but they fail to combine these instruments successfully for product innovation, implying that the single innovation strategy is performing better than combining different knowledge sourcing strategies in open innovation. Furthermore, the thesis provides evidence that sourcing R&D inputs from a domestic R&D provider can be a risky strategy when a firm aims to generate breakthrough product innovations. Instead, the firm should seek to acquire knowledge inputs from international marketplaces. The research also indicates that those firms outsourcing R&D activities are more likely to generate inventions than their counterparts that do not invest in this R&D strategy. However, this positive performance implication of R&D outsourcing does not appear to hold for invention quality.'] | ['gnd:1076605117', 'gnd:36164-1', 'gnd:4010877-6', 'gnd:4011882-4', 'gnd:4127582-2', 'gnd:4139402-1', 'gnd:7732141-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83602043X'] | ['Bzhalava, Levan', 'Friedrich-Schiller-Universität Jena', 'Dänemark', 'Deutschland', 'Outsourcing', 'Produktentwicklung', 'Open Innovation'] | Document
### Title: ['Gains and pains from the open innovation framework']
### Abstract:
['While firms increasingly adopt open innovation, little is known about whether firms gain or lose from this innovation approach. Motivated by this research gap in the literature, the thesis explores the antecedents and performance implications of open innovation strategies, particularly collaboration and contractual forms of relationships for innovation (i.e. innovation cooperation and R&D outsourcing/external R&D). The thesis is empirical and relates the various results to the data used. The first one with German Community Innovation Survey (CIS), the second one with Danish CIS and the third one with the patent enhanced German CIS. The empirical analyses suggest that a value-enhancing objective rather than a cost-minimization purpose is the main factor that stimulates companies to engage in open innovation strategies. The research also reveals that firms engage in various innovation strategies simultaneously (i.e. international external R&D, innovation cooperation partnerships and internal R&D), but they fail to combine these instruments successfully for product innovation, implying that the single innovation strategy is performing better than combining different knowledge sourcing strategies in open innovation. Furthermore, the thesis provides evidence that sourcing R&D inputs from a domestic R&D provider can be a risky strategy when a firm aims to generate breakthrough product innovations. Instead, the firm should seek to acquire knowledge inputs from international marketplaces. The research also indicates that those firms outsourcing R&D activities are more likely to generate inventions than their counterparts that do not invest in this R&D strategy. However, this positive performance implication of R&D outsourcing does not appear to hold for invention quality.']
### GND ID:
['gnd:1076605117', 'gnd:36164-1', 'gnd:4010877-6', 'gnd:4011882-4', 'gnd:4127582-2', 'gnd:4139402-1', 'gnd:7732141-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83602043X']
### GND class:
['Bzhalava, Levan', 'Friedrich-Schiller-Universität Jena', 'Dänemark', 'Deutschland', 'Outsourcing', 'Produktentwicklung', 'Open Innovation']
<|eot_id|> |
3A836421647.jsonld | ['Kulturelle und ästhetische Wahrnehmung der Edelkastanie am Oberrhein : ein experimentelles Verfahren zur landschaftsästhetischen Bewertung von Baumarten am Beispiel von Castanea sativa Mill.'] | ['Zusammenfassung: The occurrence of the sweet chestnut in the form of grown coppices in the foothill zone of the Vosges, the Palatine woods and the Black Forest is due to a long winegrowing tradition in the Upper Rhine region. During the principal winegrowing period, sweet chestnut coppices delivered high quality vineyard poles and were an indispensable source of wood and nourishment for rural populations. In the last decades however, forests have gradually lost their significance as a production site for society at large. This tendency is also reflected by the sweet chestnut forest stands. The existing coppice stands were either converted into timber producing forests or abandoned. The once graded transition from the open land to timber forests, which was originally created by sweet chestnut coppice stands along the timber line, was slowly transformed into simply structured farm land alongside timber forests characterized by viniculture.This thesis is part of the EU-funded project „The sweet chestnut in the Upper Rhine region – A tree species which connects people, cultures and landscapes“. The research tasks of the Chair of Landscape Management were to determine the touristic and sociocultural impact of this tree species. In particular, the objective of the thesis was to investigate the aesthetic importance of the sweet chestnut in the Upper Rhine region. The studies intended to demonstrate why traditional cultivation methods of the sweet chestnut should be preserved, especially in consideration of the ever increasing homogenization of the landscape. To answer this research question, it was first necessary to develop a suitable procedure for evaluating the aesthetic impact of specific tree species on the landscape. The challenge of this thesis was to approachthe simple, yet by its nature strongly subjective question regarding the „beauty“ of specific tree species in the landscape from an application-oriented perspective (i.e., as objectively as possible).Starting from various methods of image-based landscape assessment and empirical social research, analytical steps specifically tailored to the research question were developed. These steps made it possible to approach the problem from both a userdependent as well as a user-independent point of view. Combining several methods of landscape assessment in order to gradually analyze the impact of the sweet chestnut, or any other specific tree species on a given part of the landscape, allowed taking i ...'] | ['gnd:1077018827', 'gnd:4151034-3', 'gnd:4297357-0', 'gnd:4299983-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A836421647'] | ['Jotz, Sarah', 'Edelkastanie', 'Oberrheintal', 'Landschaftsbild'] | Document
### Title: ['Kulturelle und ästhetische Wahrnehmung der Edelkastanie am Oberrhein : ein experimentelles Verfahren zur landschaftsästhetischen Bewertung von Baumarten am Beispiel von Castanea sativa Mill.']
### Abstract:
['Zusammenfassung: The occurrence of the sweet chestnut in the form of grown coppices in the foothill zone of the Vosges, the Palatine woods and the Black Forest is due to a long winegrowing tradition in the Upper Rhine region. During the principal winegrowing period, sweet chestnut coppices delivered high quality vineyard poles and were an indispensable source of wood and nourishment for rural populations. In the last decades however, forests have gradually lost their significance as a production site for society at large. This tendency is also reflected by the sweet chestnut forest stands. The existing coppice stands were either converted into timber producing forests or abandoned. The once graded transition from the open land to timber forests, which was originally created by sweet chestnut coppice stands along the timber line, was slowly transformed into simply structured farm land alongside timber forests characterized by viniculture.This thesis is part of the EU-funded project „The sweet chestnut in the Upper Rhine region – A tree species which connects people, cultures and landscapes“. The research tasks of the Chair of Landscape Management were to determine the touristic and sociocultural impact of this tree species. In particular, the objective of the thesis was to investigate the aesthetic importance of the sweet chestnut in the Upper Rhine region. The studies intended to demonstrate why traditional cultivation methods of the sweet chestnut should be preserved, especially in consideration of the ever increasing homogenization of the landscape. To answer this research question, it was first necessary to develop a suitable procedure for evaluating the aesthetic impact of specific tree species on the landscape. The challenge of this thesis was to approachthe simple, yet by its nature strongly subjective question regarding the „beauty“ of specific tree species in the landscape from an application-oriented perspective (i.e., as objectively as possible).Starting from various methods of image-based landscape assessment and empirical social research, analytical steps specifically tailored to the research question were developed. These steps made it possible to approach the problem from both a userdependent as well as a user-independent point of view. Combining several methods of landscape assessment in order to gradually analyze the impact of the sweet chestnut, or any other specific tree species on a given part of the landscape, allowed taking i ...']
### GND ID:
['gnd:1077018827', 'gnd:4151034-3', 'gnd:4297357-0', 'gnd:4299983-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A836421647']
### GND class:
['Jotz, Sarah', 'Edelkastanie', 'Oberrheintal', 'Landschaftsbild']
<|eot_id|> |
3A836440617.jsonld | ['Sulfated phenolic acids as readily activatable storage forms of antifouling agents in marine plants'] | ['Zosteric acid (ZS) has recently been discussed as a potent, natural biofilm inhibiting agent. Previously to this work have further sulfated metabolites of marine origin been detected, presumably structurally related to ZS. For identification of these unknown metabolites, pure standards were synthesized and the assumed compounds 4-(sulfooxy)benzoic acid (BS) and 4-(sulfooxy)-phenylacetic acid (AS) confirmed by UPLC-MS (Ultra high performance liquid chromatography-mass spectrometry) experiments. The structural relation of AS and BS to ZS encouraged to investigate, if these would exhibit similar properties as ZS and which structural elements define their activity. The combination of different bioassays and test organisms (Escherichia coli, Vibrio natriegens), UPLC-MS stability screening of the test compounds and monitoring of the impact on bacterial growth, provided a comprehensive overview of the activity of sulfated phenolic acids in comparison to their non-sulfated forms. Impacts of the test compounds were species dependent and influenced by the experimental setup. Still, some common conclusions could be drawn. In neither of the employed assays could the previously suggested antifouling activity of ZS be confirmed, nor any effect observed from AS and BS. Instead, the non-sulfated form of ZS, 4-hydroxy-cinnamic acid (Z), proved highly efficient to inhibit bacterial settlement. UPLC-MS measurements revealed sulfatase activity in V. natriegens, leading to an in situ release of the active, non-sulfated form Z into the bacterial medium. The non-sulfated forms of AS and BS (A, B) showed either only a short term effect on biofilm inhibition (B), or none (A). The influence of Z on bacterial growth was both concentration and species dependent. The common consent concerning the activity of ZS could be revised. The sulfate ester seems thus to constitute a storage form of the active compound Z.'] | ['gnd:107270529X', 'gnd:36164-1', 'gnd:4038323-4', 'gnd:4586709-4', 'gnd:7526348-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A836440617'] | ['Kurth, Caroline', 'Friedrich-Schiller-Universität Jena', 'Meerespflanzen', 'Phenolcarbonsäuren', 'Antifouling-Wirkstoff'] | Document
### Title: ['Sulfated phenolic acids as readily activatable storage forms of antifouling agents in marine plants']
### Abstract:
['Zosteric acid (ZS) has recently been discussed as a potent, natural biofilm inhibiting agent. Previously to this work have further sulfated metabolites of marine origin been detected, presumably structurally related to ZS. For identification of these unknown metabolites, pure standards were synthesized and the assumed compounds 4-(sulfooxy)benzoic acid (BS) and 4-(sulfooxy)-phenylacetic acid (AS) confirmed by UPLC-MS (Ultra high performance liquid chromatography-mass spectrometry) experiments. The structural relation of AS and BS to ZS encouraged to investigate, if these would exhibit similar properties as ZS and which structural elements define their activity. The combination of different bioassays and test organisms (Escherichia coli, Vibrio natriegens), UPLC-MS stability screening of the test compounds and monitoring of the impact on bacterial growth, provided a comprehensive overview of the activity of sulfated phenolic acids in comparison to their non-sulfated forms. Impacts of the test compounds were species dependent and influenced by the experimental setup. Still, some common conclusions could be drawn. In neither of the employed assays could the previously suggested antifouling activity of ZS be confirmed, nor any effect observed from AS and BS. Instead, the non-sulfated form of ZS, 4-hydroxy-cinnamic acid (Z), proved highly efficient to inhibit bacterial settlement. UPLC-MS measurements revealed sulfatase activity in V. natriegens, leading to an in situ release of the active, non-sulfated form Z into the bacterial medium. The non-sulfated forms of AS and BS (A, B) showed either only a short term effect on biofilm inhibition (B), or none (A). The influence of Z on bacterial growth was both concentration and species dependent. The common consent concerning the activity of ZS could be revised. The sulfate ester seems thus to constitute a storage form of the active compound Z.']
### GND ID:
['gnd:107270529X', 'gnd:36164-1', 'gnd:4038323-4', 'gnd:4586709-4', 'gnd:7526348-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A836440617']
### GND class:
['Kurth, Caroline', 'Friedrich-Schiller-Universität Jena', 'Meerespflanzen', 'Phenolcarbonsäuren', 'Antifouling-Wirkstoff']
<|eot_id|> |
3A836675460.jsonld | ['Psychological process models and aggregate behavior'] | ['This dissertation comprises of three independent essays which introduce novel psychologically inspired process models and examine their implications for individual, collective or market behavior. The first essay studies multi-attribute choice as a guided process of search. It puts forward a theoretical framework which integrates work on search and stopping with partial information from economics with psychological subjective utility models from the field of judgment and decision making. The alternatives are searched in order of decreasing estimated utility, until the expected cost of search exceeds the relevant benefits; The essay presents the results of a performance comparison of three well-studied multi-attribute choice models.The second essay reports the results of two experiments designed to understand how people revise their judgments of factual questions after being exposed to the opinion and confidence levels of others. It introduces a tree model of judgment revision which is directly derived from the empirical observations. The model demonstrates how opinions in a group of interacting people can converge or polarize over repeated interactions. The third essay, studies collective behavior in markets for search products. The decision makers consider the alternatives in order of decreasing popularity and choose the first alternative with utility higher than a certain satisficing threshold. The popularity order is updated after each individual choice. The presented framework illustrates that such markets are characterized by rich-get-richer dynamics which lead to inequality in the market-share distribution and unpredictability in regard to the final outcome.'] | ['gnd:1077110693', 'gnd:4055903-8', 'gnd:4062862-0', 'gnd:4130047-6', 'gnd:4152401-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A836675460'] | ['Analytis, Pantelis P.', 'Sozialverhalten', 'Verhaltensforschung', 'Kollektives Verhalten', 'Entscheidungsforschung'] | Document
### Title: ['Psychological process models and aggregate behavior']
### Abstract:
['This dissertation comprises of three independent essays which introduce novel psychologically inspired process models and examine their implications for individual, collective or market behavior. The first essay studies multi-attribute choice as a guided process of search. It puts forward a theoretical framework which integrates work on search and stopping with partial information from economics with psychological subjective utility models from the field of judgment and decision making. The alternatives are searched in order of decreasing estimated utility, until the expected cost of search exceeds the relevant benefits; The essay presents the results of a performance comparison of three well-studied multi-attribute choice models.The second essay reports the results of two experiments designed to understand how people revise their judgments of factual questions after being exposed to the opinion and confidence levels of others. It introduces a tree model of judgment revision which is directly derived from the empirical observations. The model demonstrates how opinions in a group of interacting people can converge or polarize over repeated interactions. The third essay, studies collective behavior in markets for search products. The decision makers consider the alternatives in order of decreasing popularity and choose the first alternative with utility higher than a certain satisficing threshold. The popularity order is updated after each individual choice. The presented framework illustrates that such markets are characterized by rich-get-richer dynamics which lead to inequality in the market-share distribution and unpredictability in regard to the final outcome.']
### GND ID:
['gnd:1077110693', 'gnd:4055903-8', 'gnd:4062862-0', 'gnd:4130047-6', 'gnd:4152401-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A836675460']
### GND class:
['Analytis, Pantelis P.', 'Sozialverhalten', 'Verhaltensforschung', 'Kollektives Verhalten', 'Entscheidungsforschung']
<|eot_id|> |
3A83667605X.jsonld | ['Changes in eco-hydrological functioning after tropical rainforest transformation to rubber and oil palm plantations'] | ['This work presents findings from eco-hydrological research carried out in Jambi, Sumatra, Indonesia in the framework of the CRC990 (Sub-Project A02). Our results point to substantial changes in central ecosystem water fluxes after tropical rainforest transformation to monoculture plantations, which affects the availability of water at the landscape scale and thus impacts on the well-being of rural communities. Rainforest transformation to agricultural systems is generally expected to alter ecosystem water cycles at local and regional scales. Transpiration, i.e. water use by plants, is centr...'] | ['gnd:4030108-4', 'gnd:4061016-0', 'gnd:4248050-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83667605X'] | ['Kautschuk', 'Tropischer Regenwald', 'Palmöl'] | Document
### Title: ['Changes in eco-hydrological functioning after tropical rainforest transformation to rubber and oil palm plantations']
### Abstract:
['This work presents findings from eco-hydrological research carried out in Jambi, Sumatra, Indonesia in the framework of the CRC990 (Sub-Project A02). Our results point to substantial changes in central ecosystem water fluxes after tropical rainforest transformation to monoculture plantations, which affects the availability of water at the landscape scale and thus impacts on the well-being of rural communities. Rainforest transformation to agricultural systems is generally expected to alter ecosystem water cycles at local and regional scales. Transpiration, i.e. water use by plants, is centr...']
### GND ID:
['gnd:4030108-4', 'gnd:4061016-0', 'gnd:4248050-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83667605X']
### GND class:
['Kautschuk', 'Tropischer Regenwald', 'Palmöl']
<|eot_id|> |
3A837272122.jsonld | ['Social media mining as an opportunistic citizen science model in ecological monitoring: a case study using invasive alien species in forest ecosystems.'] | [['Major environmental, social and economic changes threatening the resilience of ecosystems world-wide and new demands on a broad range of forest ecosystem services present new challenges for forest management and monitoring. New risks and threats such as invasive alien species imply fundamental challenges for traditional forest management strategies, which have been based on assumptions of permanent ecosystem stability. Adaptive management and monitoring is called for to detect new threats and changes as early as possible, but this requires large-scale monitoring and monitoring resources rem...', 'Dramatische ökologische, ökonomische und soziale Veränderungen bedrohen die Stabilität von Ökosystemen weltweit und stellen zusammen mit neuen Ansprüchen an die vielfältigen Ökosystemdienstleistungen von Wäldern neue Herausforderungen für das forstliche Management und Monitoring dar. Neue Risiken und Gefahren, wie zum Beispiel eingebürgerte invasive Arten (Neobiota), werfen grundsätzliche Fragen hinsichtlich etablierter forstlicher Managementstrategien auf, da diese Strategien auf der Annahme stabiler Ökosysteme basieren. Anpassungsfähige Management- und Monitoringstrategien sind deshalb no...']] | ['gnd:4282537-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837272122'] | ['Waldökosystem'] | Document
### Title: ['Social media mining as an opportunistic citizen science model in ecological monitoring: a case study using invasive alien species in forest ecosystems.']
### Abstract:
[['Major environmental, social and economic changes threatening the resilience of ecosystems world-wide and new demands on a broad range of forest ecosystem services present new challenges for forest management and monitoring. New risks and threats such as invasive alien species imply fundamental challenges for traditional forest management strategies, which have been based on assumptions of permanent ecosystem stability. Adaptive management and monitoring is called for to detect new threats and changes as early as possible, but this requires large-scale monitoring and monitoring resources rem...', 'Dramatische ökologische, ökonomische und soziale Veränderungen bedrohen die Stabilität von Ökosystemen weltweit und stellen zusammen mit neuen Ansprüchen an die vielfältigen Ökosystemdienstleistungen von Wäldern neue Herausforderungen für das forstliche Management und Monitoring dar. Neue Risiken und Gefahren, wie zum Beispiel eingebürgerte invasive Arten (Neobiota), werfen grundsätzliche Fragen hinsichtlich etablierter forstlicher Managementstrategien auf, da diese Strategien auf der Annahme stabiler Ökosysteme basieren. Anpassungsfähige Management- und Monitoringstrategien sind deshalb no...']]
### GND ID:
['gnd:4282537-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837272122']
### GND class:
['Waldökosystem']
<|eot_id|> |
3A837277531.jsonld | ['The usefulness of thruth : an enquiriy concerning economic modelling'] | ['Philosophy of Science, Philosophy of Economics, Methodology, Empiricism, Pragmatism, Postmodernism, Anything goes, Relativism, Normativity. - This thesis attempts to justify a normative role for methodology by sketching a pragmatic way out of the dichotomy between two major strands in economic methodology: empiricism and postmodernism. I discuss several methodological approaches and assess their aptness for theory appraisal in economics. I begin with the most common views on methodology (i.e. empiricism and postmodernism) and argue why they are each ill-suited for giving methodological prescriptions to economics. Then, I consider positions that avoid the errors of empiricism and postmodernism. I specifically examine why the two major strands of methodological criticism fail to give helpful methodological advice to economists and sketch out a pragmatic approach that can do this.'] | ['gnd:4066528-8', 'gnd:4139716-2', 'gnd:4170297-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837277531'] | ['Wirtschaftswissenschaften', 'Methodologie', 'Modellierung'] | Document
### Title: ['The usefulness of thruth : an enquiriy concerning economic modelling']
### Abstract:
['Philosophy of Science, Philosophy of Economics, Methodology, Empiricism, Pragmatism, Postmodernism, Anything goes, Relativism, Normativity. - This thesis attempts to justify a normative role for methodology by sketching a pragmatic way out of the dichotomy between two major strands in economic methodology: empiricism and postmodernism. I discuss several methodological approaches and assess their aptness for theory appraisal in economics. I begin with the most common views on methodology (i.e. empiricism and postmodernism) and argue why they are each ill-suited for giving methodological prescriptions to economics. Then, I consider positions that avoid the errors of empiricism and postmodernism. I specifically examine why the two major strands of methodological criticism fail to give helpful methodological advice to economists and sketch out a pragmatic approach that can do this.']
### GND ID:
['gnd:4066528-8', 'gnd:4139716-2', 'gnd:4170297-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837277531']
### GND class:
['Wirtschaftswissenschaften', 'Methodologie', 'Modellierung']
<|eot_id|> |
3A837376610.jsonld | ['Particle-in-cell simulations of perpendicular supernova shock fronts'] | ['The origin of cosmic rays was the subject of several studies for over a century. The investigations done within this dissertation are one small step to shed some more light on this mystery. Locating the sources of cosmic rays is not trivial due to the interstellar magnetic field. However, the Hillas criterion allows us to arrive at the conclusion that supernova remnants are our main suspect for the origin of galactic cosmic rays. The mechanism by which they are accelerating particles is found within the field of shock physics as diffusive shock acceleration. To allow particles to enter this process also known as Fermi acceleration pre-acceleration processes like shock surfing acceleration and shock drift acceleration are necessary. Investigating the processes happening in the plasma shocks of supernova remnants is possible by utilising a simplified model which can be simulated on a computer using Particle-in-Cell simulations. We developed a new and clean setup to simulate the formation of a double shock, i.e., consisting of a forward and a reverse shock and a contact discontinuity, by the collision of two counter-streaming plasmas, in which a magnetic field can be woven into. In a previous work, we investigated the processes at unmagnetised and at magnetised parallel shocks, whereas in the current work, we move our investigation on to magnetised perpendicular shocks. Due to a much stronger confinement of the particles to the collision region the perpendicular shock develops much faster than the parallel shock. On the other hand, this leads to much weaker turbulence. We are able to find indications for shock surfing acceleration and shock drift acceleration happening at the two shocks leading to populations of pre-accelerated particles that are suitable as a seed population to be injected into further diffusive shock acceleration to be accelerated to even higher energies. We observe the development of filamentary structures in the shock ramp of the forward shock, but not at the reverse shock. This leads to the conclusion that the development of such structures in the shock ramp of quasi-perpendicular collisionless shocks might not necessarily be determined by the existence of a critical sonic Mach number but by a critical shock speed. The results of the investigations done within this dissertation might be useful for further studies of oblique shocks and for studies using hybrid or magnetohydrodynamic simulations. Together with more sophisticated observational methods, these studies will help to bring us closer to an answer as to how particles can be accelerated in supernova remnants and eventually become cosmic rays that can be detected on Earth.'] | ['gnd:1077666195', 'gnd:4046249-3', 'gnd:4057760-0', 'gnd:4204838-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837376610'] | ['Wieland, Volkmar', 'Plasma', 'Stoßwelle', 'Supernovaüberrest'] | Document
### Title: ['Particle-in-cell simulations of perpendicular supernova shock fronts']
### Abstract:
['The origin of cosmic rays was the subject of several studies for over a century. The investigations done within this dissertation are one small step to shed some more light on this mystery. Locating the sources of cosmic rays is not trivial due to the interstellar magnetic field. However, the Hillas criterion allows us to arrive at the conclusion that supernova remnants are our main suspect for the origin of galactic cosmic rays. The mechanism by which they are accelerating particles is found within the field of shock physics as diffusive shock acceleration. To allow particles to enter this process also known as Fermi acceleration pre-acceleration processes like shock surfing acceleration and shock drift acceleration are necessary. Investigating the processes happening in the plasma shocks of supernova remnants is possible by utilising a simplified model which can be simulated on a computer using Particle-in-Cell simulations. We developed a new and clean setup to simulate the formation of a double shock, i.e., consisting of a forward and a reverse shock and a contact discontinuity, by the collision of two counter-streaming plasmas, in which a magnetic field can be woven into. In a previous work, we investigated the processes at unmagnetised and at magnetised parallel shocks, whereas in the current work, we move our investigation on to magnetised perpendicular shocks. Due to a much stronger confinement of the particles to the collision region the perpendicular shock develops much faster than the parallel shock. On the other hand, this leads to much weaker turbulence. We are able to find indications for shock surfing acceleration and shock drift acceleration happening at the two shocks leading to populations of pre-accelerated particles that are suitable as a seed population to be injected into further diffusive shock acceleration to be accelerated to even higher energies. We observe the development of filamentary structures in the shock ramp of the forward shock, but not at the reverse shock. This leads to the conclusion that the development of such structures in the shock ramp of quasi-perpendicular collisionless shocks might not necessarily be determined by the existence of a critical sonic Mach number but by a critical shock speed. The results of the investigations done within this dissertation might be useful for further studies of oblique shocks and for studies using hybrid or magnetohydrodynamic simulations. Together with more sophisticated observational methods, these studies will help to bring us closer to an answer as to how particles can be accelerated in supernova remnants and eventually become cosmic rays that can be detected on Earth.']
### GND ID:
['gnd:1077666195', 'gnd:4046249-3', 'gnd:4057760-0', 'gnd:4204838-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837376610']
### GND class:
['Wieland, Volkmar', 'Plasma', 'Stoßwelle', 'Supernovaüberrest']
<|eot_id|> |
3A837429285.jsonld | ['Decoding magma plumbing and geochemical evolution of active volcanoes of the Central Andes (North Chile) with petrological methods'] | ['Lascar, Lastarria, magma plumbing system, andesite, magmatic differentiation, magma mixing, geothermobarometry, pre-eruptive condtions. - Magmatisches Fördersystem, Andesit, magmatische Differenzierung, Geothermobarometrie, präeruptive Bedingungen'] | ['gnd:1077070179', 'gnd:4003346-6', 'gnd:4009929-5', 'gnd:4020198-3', 'gnd:4020740-7', 'gnd:4090388-6', 'gnd:4122667-7', 'gnd:4142389-6', 'gnd:4149786-7', 'gnd:4168516-7', 'gnd:4510067-6', 'gnd:4593140-9', 'gnd:7575786-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837429285'] | ['Stechern, André', 'Atacama', 'Chile', 'Geochemie', 'Gesteinskunde', 'Chile', 'Zentralanden', 'Andesit', 'Differentiation (Geologie)', 'Magma', 'Geothermobarometrie', 'Lascar', 'San Pedro de Atacama'] | Document
### Title: ['Decoding magma plumbing and geochemical evolution of active volcanoes of the Central Andes (North Chile) with petrological methods']
### Abstract:
['Lascar, Lastarria, magma plumbing system, andesite, magmatic differentiation, magma mixing, geothermobarometry, pre-eruptive condtions. - Magmatisches Fördersystem, Andesit, magmatische Differenzierung, Geothermobarometrie, präeruptive Bedingungen']
### GND ID:
['gnd:1077070179', 'gnd:4003346-6', 'gnd:4009929-5', 'gnd:4020198-3', 'gnd:4020740-7', 'gnd:4090388-6', 'gnd:4122667-7', 'gnd:4142389-6', 'gnd:4149786-7', 'gnd:4168516-7', 'gnd:4510067-6', 'gnd:4593140-9', 'gnd:7575786-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837429285']
### GND class:
['Stechern, André', 'Atacama', 'Chile', 'Geochemie', 'Gesteinskunde', 'Chile', 'Zentralanden', 'Andesit', 'Differentiation (Geologie)', 'Magma', 'Geothermobarometrie', 'Lascar', 'San Pedro de Atacama']
<|eot_id|> |
3A837435544.jsonld | ['Mass spectrometry, biological screening and informatics of prenylated natural products : [kumulative Dissertation]'] | [['prenylatednatural product; electrospray tandem mass spectrometry;fragmentation pattern; Basidiomycetes; Suillus; Albatrellus; antibacterial activity; Activity-correlation-Analysis; MS-based metabolite profiling', 'For the characterization of prenylated compounds fragmentation studies were performed using both positive and negative ion electrospray ionization mass spectrometry (ESI-MSn). MS-based metabolite profiling und fingerprinting investigations of Suillusspecies and multivariate data analysis show the importance of simplifying and visualizing complex data to answer biological questions like classification of biological samples, the influence of geographical origins, and the identification of potential biomarkers. With the involvement of biological screening methods, informatic approaches such as activity correlation analysis (AcorA) allow the prediction of potentially bioactive-relevant compounds in complex mixtures like crude extracts without prior isolation. It could be shown, that mass spectrometry and detailed fragmentation studies as well as mass spectral data of reference compounds enable the identification of prenylated and nitrogen-containing natural products in biological samples.', 'prenylierte Naturstoffe; Elektrospay-Tandemmassenspektrometrie; Fragmentierungsmuster; Basidiomyzeten; Suillus; Albatrellus; antibakterielle Aktivität; Aktivitäts-Korrelationsanalyse; MS-basierteMetabolitenprofile', 'Zur Charakterisierung prenylierter Verbindungen wurden Fragmentierungsstudien mittels Elektrospray-Tandemmassenspektrometrie (ESI-MSn) im positiven und negativen Ionenmodus durchgeführt. Die MS-basierten Metabolomics-Untersuchungen von Suillus-Extrakten zeigen, dass die Vereinfachung und Visualisierung von komplexen Daten die Klassifizierung von Arten, die Unterscheidung von biologischen Proben und den Einfluss der geographischer Herkunft sowie die Identifizierung potenzieller Biomarker ermöglicht. MS-basierte Metabolitenprofile und Bioaktivitäten aus biologischem Screening können mittels bioinformatischer Ansätze wie der Aktivitätskorrelationsanalyse (AcorA) korreliert werden und erlauben eine Vorhersage aktivitätsrelevanter Metaboliten in komplexen Gemischen ohne vorherige Reinigung und Isolierung. MS-Fragmentierungsstudien und Daten von Referenzsubstanzen dienen als Grundlage für die Identifizierung von prenylierten und stickstoffhaltigen Metaboliten in biologischen Proben.']] | ['gnd:4037882-2', 'gnd:4041418-8', 'gnd:4809855-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837435544'] | ['Massenspektrometrie', 'Naturstoff', 'Prenylgruppe'] | Document
### Title: ['Mass spectrometry, biological screening and informatics of prenylated natural products : [kumulative Dissertation]']
### Abstract:
[['prenylatednatural product; electrospray tandem mass spectrometry;fragmentation pattern; Basidiomycetes; Suillus; Albatrellus; antibacterial activity; Activity-correlation-Analysis; MS-based metabolite profiling', 'For the characterization of prenylated compounds fragmentation studies were performed using both positive and negative ion electrospray ionization mass spectrometry (ESI-MSn). MS-based metabolite profiling und fingerprinting investigations of Suillusspecies and multivariate data analysis show the importance of simplifying and visualizing complex data to answer biological questions like classification of biological samples, the influence of geographical origins, and the identification of potential biomarkers. With the involvement of biological screening methods, informatic approaches such as activity correlation analysis (AcorA) allow the prediction of potentially bioactive-relevant compounds in complex mixtures like crude extracts without prior isolation. It could be shown, that mass spectrometry and detailed fragmentation studies as well as mass spectral data of reference compounds enable the identification of prenylated and nitrogen-containing natural products in biological samples.', 'prenylierte Naturstoffe; Elektrospay-Tandemmassenspektrometrie; Fragmentierungsmuster; Basidiomyzeten; Suillus; Albatrellus; antibakterielle Aktivität; Aktivitäts-Korrelationsanalyse; MS-basierteMetabolitenprofile', 'Zur Charakterisierung prenylierter Verbindungen wurden Fragmentierungsstudien mittels Elektrospray-Tandemmassenspektrometrie (ESI-MSn) im positiven und negativen Ionenmodus durchgeführt. Die MS-basierten Metabolomics-Untersuchungen von Suillus-Extrakten zeigen, dass die Vereinfachung und Visualisierung von komplexen Daten die Klassifizierung von Arten, die Unterscheidung von biologischen Proben und den Einfluss der geographischer Herkunft sowie die Identifizierung potenzieller Biomarker ermöglicht. MS-basierte Metabolitenprofile und Bioaktivitäten aus biologischem Screening können mittels bioinformatischer Ansätze wie der Aktivitätskorrelationsanalyse (AcorA) korreliert werden und erlauben eine Vorhersage aktivitätsrelevanter Metaboliten in komplexen Gemischen ohne vorherige Reinigung und Isolierung. MS-Fragmentierungsstudien und Daten von Referenzsubstanzen dienen als Grundlage für die Identifizierung von prenylierten und stickstoffhaltigen Metaboliten in biologischen Proben.']]
### GND ID:
['gnd:4037882-2', 'gnd:4041418-8', 'gnd:4809855-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837435544']
### GND class:
['Massenspektrometrie', 'Naturstoff', 'Prenylgruppe']
<|eot_id|> |
3A837691834.jsonld | ['Strange attractors of forced one-dimensional systems : existence and geometry'] | ['Non-smooth saddle-node bifurcations of one-parameter families of quasiperiodically driven dynamical systems on the real line give rise to strange non-chaotic attractors. In this thesis, we provide a class of families which has non-empty interior in the C2-topology and whose elements undergo non-smooth saddle-node bifurcations. Within this class, we study the geometry of the corresponding strange attractors by computing different fractal dimensions. In particular, we show that the Hausdorff dimension differs from the box-counting dimension. We further obtain a description of the minimal set at the bifurcation as a maximal invariant set. Our results treat both the discrete and the continuous time case. A number of explicit examples emphasise the applicability of our findings.'] | ['gnd:1084605473', 'gnd:36164-1', 'gnd:4078889-1', 'gnd:4140566-3', 'gnd:4796905-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837691834'] | ['Fuhrmann, Gabriel', 'Friedrich-Schiller-Universität Jena', 'Verzweigung (Mathematik)', 'Seltsamer Attraktor', 'Fraktale Dimension'] | Document
### Title: ['Strange attractors of forced one-dimensional systems : existence and geometry']
### Abstract:
['Non-smooth saddle-node bifurcations of one-parameter families of quasiperiodically driven dynamical systems on the real line give rise to strange non-chaotic attractors. In this thesis, we provide a class of families which has non-empty interior in the C2-topology and whose elements undergo non-smooth saddle-node bifurcations. Within this class, we study the geometry of the corresponding strange attractors by computing different fractal dimensions. In particular, we show that the Hausdorff dimension differs from the box-counting dimension. We further obtain a description of the minimal set at the bifurcation as a maximal invariant set. Our results treat both the discrete and the continuous time case. A number of explicit examples emphasise the applicability of our findings.']
### GND ID:
['gnd:1084605473', 'gnd:36164-1', 'gnd:4078889-1', 'gnd:4140566-3', 'gnd:4796905-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837691834']
### GND class:
['Fuhrmann, Gabriel', 'Friedrich-Schiller-Universität Jena', 'Verzweigung (Mathematik)', 'Seltsamer Attraktor', 'Fraktale Dimension']
<|eot_id|> |
3A837726115.jsonld | ['The power of frequency hopping and information dissemination in constrained communication models'] | ['Zusammenfassung: All over the globe there is a tendency towards using more and more small electronic devices to coordinate and support our daily lives. The standard way of communication of these autonomous units is wireless, i.e., broadcasted signals can be received by all devices within reach. Whether a receiving device can actually decode a signal by another device does, however, depends on a variety of factors other than the distance and the signal strength. Among them, environmental interference—either stemming from other sending devices or simply white noise—is the most significant one.In this thesis we investigate how such devices can work together in a distributed manner to compute basic hierarchical structures among themselves based on the restrictions imposed by constrained communication such as wireless signaling.The radio network model tries to capture above mentioned dependencies. It pessimistically assumes that signals can only be decoded if there is no interference, while in every other case signals received under collisions are indistinguishable from silence or white noise. Lots of research has been done for this model, but it is commonly assumed that only one channel for communication is available, while in reality a broad spectrum of frequencies can be exploited.The main theme of this thesis is to study multiple important ad hoc structure-building problems for the radio network model, under the assumption that a multitude of communication channels is available. It is analyzed which benefits can be reaped in such an environment, and where multichannel networks have their limitations. The main problems we study are leader election, wake-up, minimum dominating set, maximal independent set and connected dominating set. If we denote with n the size of the network and with F the number of communication channels, then for all the above mentioned problems we can show a speed-gain roughly in the order of min{F, log n} compared to prevailing single channel algorithms.While the radio network model is pessimistic in its assumptions and therefore a good model for developing robust algorithms, some desired physical properties that are actually prevalent in wireless communication are not reflected in it. However, this is the case for the signal-to-interference-and-noise-ratio model (SINR), which in return is harder to analyze. In addition, while this model has been analyzed a lot from a central perspective, the theory for distributed algorithms in th ...'] | ['gnd:1077634846', 'gnd:4216130-7', 'gnd:4674811-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837726115'] | ['Daum, Sebastian', 'Funknetz', 'Ad-hoc-Netz'] | Document
### Title: ['The power of frequency hopping and information dissemination in constrained communication models']
### Abstract:
['Zusammenfassung: All over the globe there is a tendency towards using more and more small electronic devices to coordinate and support our daily lives. The standard way of communication of these autonomous units is wireless, i.e., broadcasted signals can be received by all devices within reach. Whether a receiving device can actually decode a signal by another device does, however, depends on a variety of factors other than the distance and the signal strength. Among them, environmental interference—either stemming from other sending devices or simply white noise—is the most significant one.In this thesis we investigate how such devices can work together in a distributed manner to compute basic hierarchical structures among themselves based on the restrictions imposed by constrained communication such as wireless signaling.The radio network model tries to capture above mentioned dependencies. It pessimistically assumes that signals can only be decoded if there is no interference, while in every other case signals received under collisions are indistinguishable from silence or white noise. Lots of research has been done for this model, but it is commonly assumed that only one channel for communication is available, while in reality a broad spectrum of frequencies can be exploited.The main theme of this thesis is to study multiple important ad hoc structure-building problems for the radio network model, under the assumption that a multitude of communication channels is available. It is analyzed which benefits can be reaped in such an environment, and where multichannel networks have their limitations. The main problems we study are leader election, wake-up, minimum dominating set, maximal independent set and connected dominating set. If we denote with n the size of the network and with F the number of communication channels, then for all the above mentioned problems we can show a speed-gain roughly in the order of min{F, log n} compared to prevailing single channel algorithms.While the radio network model is pessimistic in its assumptions and therefore a good model for developing robust algorithms, some desired physical properties that are actually prevalent in wireless communication are not reflected in it. However, this is the case for the signal-to-interference-and-noise-ratio model (SINR), which in return is harder to analyze. In addition, while this model has been analyzed a lot from a central perspective, the theory for distributed algorithms in th ...']
### GND ID:
['gnd:1077634846', 'gnd:4216130-7', 'gnd:4674811-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837726115']
### GND class:
['Daum, Sebastian', 'Funknetz', 'Ad-hoc-Netz']
<|eot_id|> |
3A837726298.jsonld | ['New assembly and packaging technologies for high-power and high-temperature GaN and SiC devices'] | ['Zusammenfassung: This thesis work is aimed at investigating the assembly and packaging technologies for GaN and SiC based high-power and high-temperature electronic devices. The die-attachment and interconnection methods have been in the focus of investigations. For mounting SiC and GaN devices, Ag-sintering and foil-based Transient Liquid Phase (TLP) bonding were selected as die-attachment techniques. For TLP bonding process, the TLP-interlayer material was produced in the form of electroplated multilayer foils, which were based on Ag-Sn and Ag-In binary systems. Two design variants of multilayer foils, consisting of a 3-layer sandwich structure and a 9-layer structure, were successfully produced. The 9-layer structure provided the benefit of avoiding the post-bonding annealing step. The novel multi-layer foil can be utilized as a commercial product for TLP-interlayer material. For both Ag-sintering and foil-based TLP bonding, a complete process parameter optimization was performed. Various characterizations methods such as Differential Scanning Calorimetry (DSC), Energy Dispersive X-ray (EDX) Spectroscopy, Infrared (IR) Thermography, Digital Image Correlation (DIC) and Die-Shear Tests were used to determine the properties of the die-attachments. Subsequently, electrical, thermal and mechanical properties of both die-attachment types were compared to the current state-of-the-art high-temperature die-attachments such as Au80Sn20, Au88Ge12 etc. It was found that both Ag-sintering and TLP bonding exhibited better thermal and electrical properties. The thermo-mechanical stresses in Ag-sintered and TLP bonded joints were considerably low in a wide range of temperatures i.e. 30 – 400 ºC. The GaN-on-Si High Electron Mobility Transistors (HEMTs) from Fraunhofer IAF Freiburg, were used during the investigations. These devices feature high breakdown-voltages, lower specific on-state resistances and achieve higher performances on smaller area as compared to their Si counterpart. A systematic electrical characterization of GaN-on-Si HEMTs was performed from on-wafer devices to the final assembly. The objective was to investigate the assembly-related thermal and thermo-mechanical influences on the electrical characteristics of the devices. A major emphasis was given to the thermal characterization of the GaN assemblies. The surface temperatures of the devices were measured using IR-thermography and surface-mounted Pt-1000 temperature sensors. The actual channel tem ...'] | ['gnd:1077671504', 'gnd:4055009-6', 'gnd:4375592-6', 'gnd:4487460-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837726298'] | ['Bajwa, Adeel Ahmad', 'Siliciumcarbid', 'Galliumnitrid', 'Hochtemperaturelektronik'] | Document
### Title: ['New assembly and packaging technologies for high-power and high-temperature GaN and SiC devices']
### Abstract:
['Zusammenfassung: This thesis work is aimed at investigating the assembly and packaging technologies for GaN and SiC based high-power and high-temperature electronic devices. The die-attachment and interconnection methods have been in the focus of investigations. For mounting SiC and GaN devices, Ag-sintering and foil-based Transient Liquid Phase (TLP) bonding were selected as die-attachment techniques. For TLP bonding process, the TLP-interlayer material was produced in the form of electroplated multilayer foils, which were based on Ag-Sn and Ag-In binary systems. Two design variants of multilayer foils, consisting of a 3-layer sandwich structure and a 9-layer structure, were successfully produced. The 9-layer structure provided the benefit of avoiding the post-bonding annealing step. The novel multi-layer foil can be utilized as a commercial product for TLP-interlayer material. For both Ag-sintering and foil-based TLP bonding, a complete process parameter optimization was performed. Various characterizations methods such as Differential Scanning Calorimetry (DSC), Energy Dispersive X-ray (EDX) Spectroscopy, Infrared (IR) Thermography, Digital Image Correlation (DIC) and Die-Shear Tests were used to determine the properties of the die-attachments. Subsequently, electrical, thermal and mechanical properties of both die-attachment types were compared to the current state-of-the-art high-temperature die-attachments such as Au80Sn20, Au88Ge12 etc. It was found that both Ag-sintering and TLP bonding exhibited better thermal and electrical properties. The thermo-mechanical stresses in Ag-sintered and TLP bonded joints were considerably low in a wide range of temperatures i.e. 30 – 400 ºC. The GaN-on-Si High Electron Mobility Transistors (HEMTs) from Fraunhofer IAF Freiburg, were used during the investigations. These devices feature high breakdown-voltages, lower specific on-state resistances and achieve higher performances on smaller area as compared to their Si counterpart. A systematic electrical characterization of GaN-on-Si HEMTs was performed from on-wafer devices to the final assembly. The objective was to investigate the assembly-related thermal and thermo-mechanical influences on the electrical characteristics of the devices. A major emphasis was given to the thermal characterization of the GaN assemblies. The surface temperatures of the devices were measured using IR-thermography and surface-mounted Pt-1000 temperature sensors. The actual channel tem ...']
### GND ID:
['gnd:1077671504', 'gnd:4055009-6', 'gnd:4375592-6', 'gnd:4487460-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837726298']
### GND class:
['Bajwa, Adeel Ahmad', 'Siliciumcarbid', 'Galliumnitrid', 'Hochtemperaturelektronik']
<|eot_id|> |
3A837726980.jsonld | ['Point-of-care detection of botulinum neurotoxins'] | [['Zusammenfassung: Botulinum neurotoxins (BoNT) are among the deadliest known toxins, are relatively easy to produce and have been incorporated into military weapons. Therefore they have been ranked as an agent with highest priority concerning threats of bioterrorism. In addition to the potential deliberate misuse of BoNT, natural outbreaks in farming and food manufacturing also constitute a typical point-of-care (POC) scenario for BoNT detection. In such a scenario fast (< 1 h), portable and automated, on-site detection of unknown BoNT types and forms is required. Existing POC systems for BoNT detection are suitable in specific fields of applications but are of limited use in such a scenario for several reasons. Possible disadvantages include: (i) the assay format does not allow for detection of a broad range of BoNT type and forms; (ii) the stage of developments are proof of concepts rather than thoroughly developed platforms; (iii) they are non-automated or (iv) have been developed on immobile laboratory devices; (v) important engineering aspects such as the reagent pre-storage or fabrication methods are neglected.In this thesis all these limitations are addressed, starting with the long-term storage and fabrication method: Reagent storage presents a major challenge, not only for BoNT detection but for POC detection in general. On-chip pre-storage and automated release of reagents would circumvent on-site pipetting steps which are otherwise necessary. This challenge is first addressed in this thesis with an ultrasonic welding parameter-study that allows for sealing reagents in aluminium / polyethylene (PE) composite film. These seals can be designed to open at defined burst pressures to release the reagents. The sealing time, pressure and amplitude were varied within the range of 100 – 400 ms, 50 – 250 kPa, and 12 – 24 µm, respectively. T-peel tests and electron micrographs revealed four different peel regimes, depending on the parameter combination: (I) Interlaminar peeling at low peel strength with uniform peeling along a weakly bonded PE lamination layer; (II) transition tearing at intermediate peel strength showing areas of interlaminar peeling and translaminar tearing; (III) translaminar tearing at high peel strength showing tears through the entire film; and, (IV) undefined tearing at varying tear strength occurring when vibration effects during welding lead to insufficient contact of the films or high pressures lead to a displacement of PE. ...', 'Zusammenfassung: Botulinum Neurotoxine (BoNT) gehören zu den stärksten bekannten Toxinen, sind relativ einfach herstellbar und wurden bereits in militärischen Waffen integriert. Daher finden sich BoNT in der Kategorie von Toxinen, von denen die größte Bedrohung durch Bioterrorismus ausgeht. Neben der möglichen vorsätzlichen Freisetzung von BoNT treten auch natürliche Ausbrüche in der Tierhaltung und Lebensmittelherstellung auf, in denen Vor-Ort-Analysen benötigt werden. In solchen Szenarien werden schnelle (< 1 Stunde), tragbare und automatisierte Analysen von unbekannten BoNT-Typen und -Formen verlangt. Bereits entwickelte Vor-Ort-Systeme für die BoNT-Detektion haben zwar ihre Berechtigung in spezifischen Anwendungsgebieten, sie sind aber in einem der beschriebenen Notfallszenarien nur bedingt brauchbar: (I) Entweder erlaubt der Assay nicht die Detektion eines breiten BoNT-Spektrums, (II) das System wurde lediglich als Konzeptstudie beschrieben und liegt nicht als umfänglich entwickelte Plattform vor, (III) es sind nicht automatisierte Systeme, (IV) sie basieren auf stationären Laborgeräten oder (V) wichtige technische Aspekte, wie die Reagenzienvorlagerung und Fabrikationsprozesse wurden nicht berücksichtigt.Im praktischen Teil dieser Arbeit werden diese erwähnten Beschränkungen ausgearbeitet, beginnend mit der Reaganzienvorlagerung: Eine große Herausforderung in der Entwicklung von Vor-Ort-Analysen ist die langzeitstabile Vorlagerung von Reagenzien und deren automatisierte Freisetzung in Lab-on-a-Chip (LOAC) Systemen. Eine in dieser Arbeit durchgeführte Parameterstudie für das Ultraschallschweißen erlaubt die Verpackung von Reagenzien in Aluminium/Polyethylen-Verbundfolie. Die Siegelnähte der verschweißten Verpackung können so ausgelegt werden, dass sie bei einem definierten Druck delaminieren und die Reagenzien freisetzen. Die Siegezeit, der Schweißdruck und die Ultraschall-Amplitude wurden im Bereich 100 – 400 ms, 50 – 250 kPa und 12 – 24 µm variiert und deren Einfluss auf die Siegelstärke untersucht. Mit T-Peeltests und elektronenmikroskopischen Aufnahmen konnten vier Delaminationsbereiche in Abhängigkeit der Siegelparameter identifiziert werden: (I) Interlaminares Delaminieren bei tiefer Peelstärke mit einheitlicher Rissfläche entlang der Polyethylen-Schichten; (II) der Übergangsbereich mit mittlerer Peelstärke, in dem teilweise interlaminares und translaminares Delaminieren auftritt; ( ...']] | ['gnd:1077788851', 'gnd:4232767-2', 'gnd:4273044-2', 'gnd:7610677-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837726980'] | ['Oordt, Thomas', 'Bedside-Methode', 'Botulinustoxin', 'Lab on a Chip'] | Document
### Title: ['Point-of-care detection of botulinum neurotoxins']
### Abstract:
[['Zusammenfassung: Botulinum neurotoxins (BoNT) are among the deadliest known toxins, are relatively easy to produce and have been incorporated into military weapons. Therefore they have been ranked as an agent with highest priority concerning threats of bioterrorism. In addition to the potential deliberate misuse of BoNT, natural outbreaks in farming and food manufacturing also constitute a typical point-of-care (POC) scenario for BoNT detection. In such a scenario fast (< 1 h), portable and automated, on-site detection of unknown BoNT types and forms is required. Existing POC systems for BoNT detection are suitable in specific fields of applications but are of limited use in such a scenario for several reasons. Possible disadvantages include: (i) the assay format does not allow for detection of a broad range of BoNT type and forms; (ii) the stage of developments are proof of concepts rather than thoroughly developed platforms; (iii) they are non-automated or (iv) have been developed on immobile laboratory devices; (v) important engineering aspects such as the reagent pre-storage or fabrication methods are neglected.In this thesis all these limitations are addressed, starting with the long-term storage and fabrication method: Reagent storage presents a major challenge, not only for BoNT detection but for POC detection in general. On-chip pre-storage and automated release of reagents would circumvent on-site pipetting steps which are otherwise necessary. This challenge is first addressed in this thesis with an ultrasonic welding parameter-study that allows for sealing reagents in aluminium / polyethylene (PE) composite film. These seals can be designed to open at defined burst pressures to release the reagents. The sealing time, pressure and amplitude were varied within the range of 100 – 400 ms, 50 – 250 kPa, and 12 – 24 µm, respectively. T-peel tests and electron micrographs revealed four different peel regimes, depending on the parameter combination: (I) Interlaminar peeling at low peel strength with uniform peeling along a weakly bonded PE lamination layer; (II) transition tearing at intermediate peel strength showing areas of interlaminar peeling and translaminar tearing; (III) translaminar tearing at high peel strength showing tears through the entire film; and, (IV) undefined tearing at varying tear strength occurring when vibration effects during welding lead to insufficient contact of the films or high pressures lead to a displacement of PE. ...', 'Zusammenfassung: Botulinum Neurotoxine (BoNT) gehören zu den stärksten bekannten Toxinen, sind relativ einfach herstellbar und wurden bereits in militärischen Waffen integriert. Daher finden sich BoNT in der Kategorie von Toxinen, von denen die größte Bedrohung durch Bioterrorismus ausgeht. Neben der möglichen vorsätzlichen Freisetzung von BoNT treten auch natürliche Ausbrüche in der Tierhaltung und Lebensmittelherstellung auf, in denen Vor-Ort-Analysen benötigt werden. In solchen Szenarien werden schnelle (< 1 Stunde), tragbare und automatisierte Analysen von unbekannten BoNT-Typen und -Formen verlangt. Bereits entwickelte Vor-Ort-Systeme für die BoNT-Detektion haben zwar ihre Berechtigung in spezifischen Anwendungsgebieten, sie sind aber in einem der beschriebenen Notfallszenarien nur bedingt brauchbar: (I) Entweder erlaubt der Assay nicht die Detektion eines breiten BoNT-Spektrums, (II) das System wurde lediglich als Konzeptstudie beschrieben und liegt nicht als umfänglich entwickelte Plattform vor, (III) es sind nicht automatisierte Systeme, (IV) sie basieren auf stationären Laborgeräten oder (V) wichtige technische Aspekte, wie die Reagenzienvorlagerung und Fabrikationsprozesse wurden nicht berücksichtigt.Im praktischen Teil dieser Arbeit werden diese erwähnten Beschränkungen ausgearbeitet, beginnend mit der Reaganzienvorlagerung: Eine große Herausforderung in der Entwicklung von Vor-Ort-Analysen ist die langzeitstabile Vorlagerung von Reagenzien und deren automatisierte Freisetzung in Lab-on-a-Chip (LOAC) Systemen. Eine in dieser Arbeit durchgeführte Parameterstudie für das Ultraschallschweißen erlaubt die Verpackung von Reagenzien in Aluminium/Polyethylen-Verbundfolie. Die Siegelnähte der verschweißten Verpackung können so ausgelegt werden, dass sie bei einem definierten Druck delaminieren und die Reagenzien freisetzen. Die Siegezeit, der Schweißdruck und die Ultraschall-Amplitude wurden im Bereich 100 – 400 ms, 50 – 250 kPa und 12 – 24 µm variiert und deren Einfluss auf die Siegelstärke untersucht. Mit T-Peeltests und elektronenmikroskopischen Aufnahmen konnten vier Delaminationsbereiche in Abhängigkeit der Siegelparameter identifiziert werden: (I) Interlaminares Delaminieren bei tiefer Peelstärke mit einheitlicher Rissfläche entlang der Polyethylen-Schichten; (II) der Übergangsbereich mit mittlerer Peelstärke, in dem teilweise interlaminares und translaminares Delaminieren auftritt; ( ...']]
### GND ID:
['gnd:1077788851', 'gnd:4232767-2', 'gnd:4273044-2', 'gnd:7610677-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837726980']
### GND class:
['Oordt, Thomas', 'Bedside-Methode', 'Botulinustoxin', 'Lab on a Chip']
<|eot_id|> |
3A83779031X.jsonld | ['Nutrient response efficiency, tree-microbe competition for nutrients and tree neighborhood dynamics in a mixed-species temperate deciduous forest in central Germany'] | [['In most Central European countries, less than one percent of the remaining broadleaved forest is undisturbed and temperate forests face challenges such as species invasion, climate change and increased nitrogen deposition. High N deposition has been shown to alleviate N limitation, inhibit P uptake and cause deficiencies in leaf P status of beech. Tree species diversity may increase stand productivity in temperate forests through complementary resource use and/or facilitation of a limiting nutrient. The passage of nutrients through microbial biomass during decomposition is a key process in ...', 'In den meisten Ländern Mitteleuropas gilt weniger als ein Prozent des verbleibenden Laubwaldes als ungestört und temperierte Wälder sind Herausforderungen wie Arteninvasion, Klimawandel und steigender Stickstoff(N)-Deposition ausgesetzt. In der Vergangenheit wurde gezeigt, dass hohe N-Einträge N-Limitierungen verringern, Phosphor(P)aufnahme behindern und P-Mängel in der Buche auslösen können. Die Artendiversität von Bäumen kann die Bestandsproduktivität durch die Prozesse Komplementarität und Facilitation (Wachstumserleichterung) erhöhen, wenn diese einen wachstumslimitierenden Nährstoff be...']] | ['gnd:4006877-8', 'gnd:4035786-7', 'gnd:4146805-3', 'gnd:4151140-2', 'gnd:4158774-1', 'gnd:4166893-5', 'gnd:4282537-4', 'gnd:4327378-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83779031X'] | ['Biomasse', 'Linde', 'Buche', 'Eiche', 'Hainbuche', 'Laubwald', 'Waldökosystem', 'Nährstoffkreislauf'] | Document
### Title: ['Nutrient response efficiency, tree-microbe competition for nutrients and tree neighborhood dynamics in a mixed-species temperate deciduous forest in central Germany']
### Abstract:
[['In most Central European countries, less than one percent of the remaining broadleaved forest is undisturbed and temperate forests face challenges such as species invasion, climate change and increased nitrogen deposition. High N deposition has been shown to alleviate N limitation, inhibit P uptake and cause deficiencies in leaf P status of beech. Tree species diversity may increase stand productivity in temperate forests through complementary resource use and/or facilitation of a limiting nutrient. The passage of nutrients through microbial biomass during decomposition is a key process in ...', 'In den meisten Ländern Mitteleuropas gilt weniger als ein Prozent des verbleibenden Laubwaldes als ungestört und temperierte Wälder sind Herausforderungen wie Arteninvasion, Klimawandel und steigender Stickstoff(N)-Deposition ausgesetzt. In der Vergangenheit wurde gezeigt, dass hohe N-Einträge N-Limitierungen verringern, Phosphor(P)aufnahme behindern und P-Mängel in der Buche auslösen können. Die Artendiversität von Bäumen kann die Bestandsproduktivität durch die Prozesse Komplementarität und Facilitation (Wachstumserleichterung) erhöhen, wenn diese einen wachstumslimitierenden Nährstoff be...']]
### GND ID:
['gnd:4006877-8', 'gnd:4035786-7', 'gnd:4146805-3', 'gnd:4151140-2', 'gnd:4158774-1', 'gnd:4166893-5', 'gnd:4282537-4', 'gnd:4327378-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A83779031X']
### GND class:
['Biomasse', 'Linde', 'Buche', 'Eiche', 'Hainbuche', 'Laubwald', 'Waldökosystem', 'Nährstoffkreislauf']
<|eot_id|> |
3A837901707.jsonld | ['Complexity and control in quantum photonics : doctoral thesis accepted by the University of Bristol, UK'] | ["This work explores the scope and flexibility afforded by integrated quantum photonics, both in terms of practical problem-solving, and for the pursuit of fundamental science. The author demonstrates and fully characterizes a two-qubit quantum photonic chip, capable of arbitrary two-qubit state preparation. Making use of the unprecedented degree of reconfigurability afforded by this device, a novel variation on Wheeler's delayed choice experiment is implemented, and a new technique to obtain nonlocal statistics without a shared reference frame is tested. Also presented is a new algorithm for quantum chemistry, simulating the helium hydride ion. Finally, multiphoton quantum interference in a large Hilbert space is demonstrated, and its implications for computational complexity are examined."] | ['gnd:4243979-6', 'gnd:4705961-8', 'gnd:4842734-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837901707'] | ['Photonik', 'Quanteninformatik', 'Qubit'] | Document
### Title: ['Complexity and control in quantum photonics : doctoral thesis accepted by the University of Bristol, UK']
### Abstract:
["This work explores the scope and flexibility afforded by integrated quantum photonics, both in terms of practical problem-solving, and for the pursuit of fundamental science. The author demonstrates and fully characterizes a two-qubit quantum photonic chip, capable of arbitrary two-qubit state preparation. Making use of the unprecedented degree of reconfigurability afforded by this device, a novel variation on Wheeler's delayed choice experiment is implemented, and a new technique to obtain nonlocal statistics without a shared reference frame is tested. Also presented is a new algorithm for quantum chemistry, simulating the helium hydride ion. Finally, multiphoton quantum interference in a large Hilbert space is demonstrated, and its implications for computational complexity are examined."]
### GND ID:
['gnd:4243979-6', 'gnd:4705961-8', 'gnd:4842734-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A837901707']
### GND class:
['Photonik', 'Quanteninformatik', 'Qubit']
<|eot_id|> |
3A838436420.jsonld | ['Architectural and non-architectural effects of salinity on canopy structure, light interception and dry mass production on greenhouse cucumber and tomato'] | ['Cucumber, tomato, functional-structural plant model, salinity stress, light interception, photosynthesis, light use efficiency, quantitative limitation analysis. - Gurke, Tomate, funktionell-strukturelles Pflanzenmodell, Salzstress, Lichtaufnahme, Photosynthese, Lichtnutzungseffizient, quantitative Limitierungsanalyse'] | ['gnd:4020072-3', 'gnd:4178985-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A838436420'] | ['Gemüsebau', 'Salzbelastung'] | Document
### Title: ['Architectural and non-architectural effects of salinity on canopy structure, light interception and dry mass production on greenhouse cucumber and tomato']
### Abstract:
['Cucumber, tomato, functional-structural plant model, salinity stress, light interception, photosynthesis, light use efficiency, quantitative limitation analysis. - Gurke, Tomate, funktionell-strukturelles Pflanzenmodell, Salzstress, Lichtaufnahme, Photosynthese, Lichtnutzungseffizient, quantitative Limitierungsanalyse']
### GND ID:
['gnd:4020072-3', 'gnd:4178985-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A838436420']
### GND class:
['Gemüsebau', 'Salzbelastung']
<|eot_id|> |
3A838487831.jsonld | ['Bollywood in Britain : cinema, brand, discursive complex'] | ['"Bollywood in Britain provides the most extensive survey to date of the various manifestations and facets of the Bollywood phenomenon in Britain. The book analyzes the role of Hindi films in the British film market, it shows how audiences engage with Bollywood cinema and it discusses the ways the image of Bollywood in Britain has been shaped. In contrast to most of the existing books on the subject, which tend to approach Bollywood as something that is made by Asians for Asians, the book also focuses on how Bollywood has been adapted for non-Asian Britons. An analysis of Bollywood as an unofficial brand is combined with in-depth readings of texts like film reviews, the TV show Bollywood Star (2004) and novels and plays with references to the Bombay film industry. On this basis Bollywood in Britain demonstrates that the presentation of Bollywood for British mainstream culture oscillates between moments of approximation and distancing, with a clear dominance of the latter. Despite its alleged transculturality, Bollywood in Britain thus emerges as a phenomenon of difference, distance and Othering"--'] | ['gnd:10013721-0', 'gnd:112989098', 'gnd:126262977', 'gnd:139693602', 'gnd:172902878', 'gnd:4012089-2', 'gnd:4017102-4', 'gnd:4022153-2', 'gnd:4024954-2', 'gnd:4026711-8', 'gnd:4026722-2', 'gnd:4033542-2', 'gnd:4074577-6', 'gnd:4131814-6', 'gnd:4154367-1', 'gnd:4154384-1', 'gnd:64681-7', 'gnd:7538399-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A838487831'] | ['Mumbai', 'Gohrisch, Jana', 'Krämer, Lucia', 'Wiemann, Dirk', 'Emig, Rainer', 'Diaspora (Religion)', 'Film', 'Großbritannien', 'Hindi', 'Inder', 'Indien', 'Kulturelle Identität', 'Marke', 'Nostalgie', 'Filmkritik', 'Filmwirtschaft', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Bollywood'] | Document
### Title: ['Bollywood in Britain : cinema, brand, discursive complex']
### Abstract:
['"Bollywood in Britain provides the most extensive survey to date of the various manifestations and facets of the Bollywood phenomenon in Britain. The book analyzes the role of Hindi films in the British film market, it shows how audiences engage with Bollywood cinema and it discusses the ways the image of Bollywood in Britain has been shaped. In contrast to most of the existing books on the subject, which tend to approach Bollywood as something that is made by Asians for Asians, the book also focuses on how Bollywood has been adapted for non-Asian Britons. An analysis of Bollywood as an unofficial brand is combined with in-depth readings of texts like film reviews, the TV show Bollywood Star (2004) and novels and plays with references to the Bombay film industry. On this basis Bollywood in Britain demonstrates that the presentation of Bollywood for British mainstream culture oscillates between moments of approximation and distancing, with a clear dominance of the latter. Despite its alleged transculturality, Bollywood in Britain thus emerges as a phenomenon of difference, distance and Othering"--']
### GND ID:
['gnd:10013721-0', 'gnd:112989098', 'gnd:126262977', 'gnd:139693602', 'gnd:172902878', 'gnd:4012089-2', 'gnd:4017102-4', 'gnd:4022153-2', 'gnd:4024954-2', 'gnd:4026711-8', 'gnd:4026722-2', 'gnd:4033542-2', 'gnd:4074577-6', 'gnd:4131814-6', 'gnd:4154367-1', 'gnd:4154384-1', 'gnd:64681-7', 'gnd:7538399-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A838487831']
### GND class:
['Mumbai', 'Gohrisch, Jana', 'Krämer, Lucia', 'Wiemann, Dirk', 'Emig, Rainer', 'Diaspora (Religion)', 'Film', 'Großbritannien', 'Hindi', 'Inder', 'Indien', 'Kulturelle Identität', 'Marke', 'Nostalgie', 'Filmkritik', 'Filmwirtschaft', 'Gottfried Wilhelm Leibniz Universität Hannover', 'Bollywood']
<|eot_id|> |
3A838523498.jsonld | ['Füllstoffe in der Konstruktion : ein Konzept zur Verstärkung von Schiffsseitenhüllen'] | [['The present thesis is dealing with the question how to improve local parts of ship constructions. The strengthening is achieved by filling void spaces with granulate material. To investigate the effects of the granular material on the failure mechanism, several quasi-static collision experiments in a scale of about 1:3 were undertaken. Amongst others two models filled with multicellular glass hollow spheres were conducted. With the knowledge of validated and verified simulations the protecting effects were investigated by real ship structures as potential examples of use.$cen$dAbstract', 'Die Dissertation beschäftigt sich mit der Fragestellung lokale Bauteile von schiffbaulichen Konstruktionen zu verstärken. Die Erhöhung der Festigkeit wird durch Auffüllen des Leerraumes der Struktur mittels granularer Füllstoffe erreicht. Zur Untersuchung der Wirkung des granularen Füllstoffes wurden quasi-statische Kollisionsversuche im Maßstab ca. 1:3 durchgeführt, bei denen unter anderem zwei Modellkörper einer Schiffsseitenwand mit multizellularen Glashohlkugeln gefüllt wurden. Durch experimentell validierte und verifizierte Simulationen wird die schützende Wirkung numerisch an zwei Anwendungsbeispiele realer Schiffsstrukturen untersucht.$cde$dAbstract']] | ['gnd:10194333-7', 'gnd:1054667918', 'gnd:108609197', 'gnd:2067664-5', 'gnd:4016916-9', 'gnd:4155585-5', 'gnd:4191598-7', 'gnd:4643241-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A838523498'] | ['Technische Universität Hamburg-Harburg, Institut für Konstruktion und Festigkeit von Schiffen', 'Schöttelndreyer, Martin', 'Lehmann, Eike', 'Technische Universität Hamburg-Harburg', 'Festigkeit', 'Füllstoff', 'Schiffskollision', 'Doppelhüllenschiff'] | Document
### Title: ['Füllstoffe in der Konstruktion : ein Konzept zur Verstärkung von Schiffsseitenhüllen']
### Abstract:
[['The present thesis is dealing with the question how to improve local parts of ship constructions. The strengthening is achieved by filling void spaces with granulate material. To investigate the effects of the granular material on the failure mechanism, several quasi-static collision experiments in a scale of about 1:3 were undertaken. Amongst others two models filled with multicellular glass hollow spheres were conducted. With the knowledge of validated and verified simulations the protecting effects were investigated by real ship structures as potential examples of use.$cen$dAbstract', 'Die Dissertation beschäftigt sich mit der Fragestellung lokale Bauteile von schiffbaulichen Konstruktionen zu verstärken. Die Erhöhung der Festigkeit wird durch Auffüllen des Leerraumes der Struktur mittels granularer Füllstoffe erreicht. Zur Untersuchung der Wirkung des granularen Füllstoffes wurden quasi-statische Kollisionsversuche im Maßstab ca. 1:3 durchgeführt, bei denen unter anderem zwei Modellkörper einer Schiffsseitenwand mit multizellularen Glashohlkugeln gefüllt wurden. Durch experimentell validierte und verifizierte Simulationen wird die schützende Wirkung numerisch an zwei Anwendungsbeispiele realer Schiffsstrukturen untersucht.$cde$dAbstract']]
### GND ID:
['gnd:10194333-7', 'gnd:1054667918', 'gnd:108609197', 'gnd:2067664-5', 'gnd:4016916-9', 'gnd:4155585-5', 'gnd:4191598-7', 'gnd:4643241-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A838523498']
### GND class:
['Technische Universität Hamburg-Harburg, Institut für Konstruktion und Festigkeit von Schiffen', 'Schöttelndreyer, Martin', 'Lehmann, Eike', 'Technische Universität Hamburg-Harburg', 'Festigkeit', 'Füllstoff', 'Schiffskollision', 'Doppelhüllenschiff']
<|eot_id|> |
3A839146515.jsonld | ['Nebelkammerreaktoren zur Kultivierung biotechnologisch relevanter Systeme'] | ['Nebelkammerreaktor, Ultraschallzerstäubung, Scherstress, Aerosol. - Mist-chamber bioreactor, ultrasonic vaporization, shear stress'] | ['gnd:4000595-1', 'gnd:4006780-4', 'gnd:4186731-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839146515'] | ['Aerosol', 'Bioreaktor', 'Ultraschallvernebelung'] | Document
### Title: ['Nebelkammerreaktoren zur Kultivierung biotechnologisch relevanter Systeme']
### Abstract:
['Nebelkammerreaktor, Ultraschallzerstäubung, Scherstress, Aerosol. - Mist-chamber bioreactor, ultrasonic vaporization, shear stress']
### GND ID:
['gnd:4000595-1', 'gnd:4006780-4', 'gnd:4186731-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839146515']
### GND class:
['Aerosol', 'Bioreaktor', 'Ultraschallvernebelung']
<|eot_id|> |
3A839322429.jsonld | ['Aerosols and boundary layer structure over Arctic sea ice based on airborne lidar and dropsonde measurements'] | ['The atmosphere over the Arctic Ocean is strongly influenced by the distribution of sea ice and open water. Leads in the sea ice produce strong convective fluxes of sensible and latent heat and release aerosol particles into the atmosphere. They increase the occurrence of clouds and modify the structure and characteristics of the atmospheric boundary layer (ABL) and thereby influence the Arctic climate. In the course of this study aircraft measurements were performed over the western Arctic Ocean as part of the campaign PAMARCMIP 2012 of the Alfred Wegener Institute for Polar and Marine Research (AWI). Backscatter from aerosols and clouds within the lower troposphere and the ABL were measured with the nadir pointing Airborne Mobile Aerosol Lidar (AMALi) and dropsondes were launched to obtain profiles of meteorological variables. Furthermore, in situ measurements of aerosol properties, meteorological variables and turbulence were part of the campaign. The measurements covered a broad range of atmospheric and sea ice conditions. In th…'] | ['gnd:1078749396', 'gnd:2120681-8', 'gnd:4042569-1', 'gnd:4192517-8', 'gnd:4201505-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839322429'] | ['Schmidt, Lukas', 'Universität Potsdam', 'Nordpolarmeer', 'Atmosphärische Grenzschicht', 'Atmosphärisches Aerosol'] | Document
### Title: ['Aerosols and boundary layer structure over Arctic sea ice based on airborne lidar and dropsonde measurements']
### Abstract:
['The atmosphere over the Arctic Ocean is strongly influenced by the distribution of sea ice and open water. Leads in the sea ice produce strong convective fluxes of sensible and latent heat and release aerosol particles into the atmosphere. They increase the occurrence of clouds and modify the structure and characteristics of the atmospheric boundary layer (ABL) and thereby influence the Arctic climate. In the course of this study aircraft measurements were performed over the western Arctic Ocean as part of the campaign PAMARCMIP 2012 of the Alfred Wegener Institute for Polar and Marine Research (AWI). Backscatter from aerosols and clouds within the lower troposphere and the ABL were measured with the nadir pointing Airborne Mobile Aerosol Lidar (AMALi) and dropsondes were launched to obtain profiles of meteorological variables. Furthermore, in situ measurements of aerosol properties, meteorological variables and turbulence were part of the campaign. The measurements covered a broad range of atmospheric and sea ice conditions. In th…']
### GND ID:
['gnd:1078749396', 'gnd:2120681-8', 'gnd:4042569-1', 'gnd:4192517-8', 'gnd:4201505-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839322429']
### GND class:
['Schmidt, Lukas', 'Universität Potsdam', 'Nordpolarmeer', 'Atmosphärische Grenzschicht', 'Atmosphärisches Aerosol']
<|eot_id|> |
3A839327587.jsonld | ['Complex regimes of synchronization : modeling and analysis'] | ['Synchronization is a fundamental phenomenon in nature. It can be considered as a general property of self-sustained oscillators to adjust their rhythm in the presence of an interaction. In this work we investigate complex regimes of synchronization phenomena by means of theoretical analysis, numerical modeling, as well as practical analysis of experimental data. As a subject of our investigation we consider chimera state, where due to spontaneous symmetry-breaking of an initially homogeneous oscillators lattice split the system into two parts with different dynamics. Chimera state as a new synchronization phenomenon was first found in non-locally coupled oscillators system, and has attracted a lot of attention in the last decade. However, the recent studies indicate that this state is also possible in globally coupled systems. In the first part of this work, we show under which conditions the chimera-like state appears in a system of globally coupled identical oscillators with intrinsic delayed feedback. The results of the research explain how initially monostable oscillators became effectivly bistable in the presence of the coupling and create a mean field that sustain the coexistence of synchronized and desynchronized states. Also we discuss other examples, where chimera-like state appears due to frequency dependence of the phase shift in the bistable system. In the second part, we make further investigation of this topic by modeling influence of an external periodic force to an oscillator with intrinsic delayed feedback. We made stability analysis of the synchronized state and constructed Arnold tongues. The results explain formation of the chimera-like state and hysteric behavior of the synchronization area. Also, we consider two sets of parameters of the oscillator with symmetric and asymmetric Arnold tongues, that correspond to mono- and bi-stable regimes of the oscillator. In the third part, we demonstrate the results of the work, which was done in collaboration with our colleagues from Psychology Department of University of Potsdam. The project aimed to study the effect of the cardiac rhythm on human perception of time using synchronization analysis. From our part, we made a statistical analysis of the data obtained from the conducted experiment on free time interval reproduction task. We examined how ones heartbeat influences the time perception and searched for possible phase synchronization between heartbeat cycles and time reproduction responses. The findings support the prediction that cardiac cycles can serve as input signals, and is used for reproduction of time intervals in the range of several seconds.'] | ['gnd:1078749507', 'gnd:4067473-3', 'gnd:4125645-1', 'gnd:4130847-5', 'gnd:4132814-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839327587'] | ['Yeldesbay, Azamat', 'Zeitwahrnehmung', 'Herzfrequenz', 'Synchronisierung', 'Oszillator'] | Document
### Title: ['Complex regimes of synchronization : modeling and analysis']
### Abstract:
['Synchronization is a fundamental phenomenon in nature. It can be considered as a general property of self-sustained oscillators to adjust their rhythm in the presence of an interaction. In this work we investigate complex regimes of synchronization phenomena by means of theoretical analysis, numerical modeling, as well as practical analysis of experimental data. As a subject of our investigation we consider chimera state, where due to spontaneous symmetry-breaking of an initially homogeneous oscillators lattice split the system into two parts with different dynamics. Chimera state as a new synchronization phenomenon was first found in non-locally coupled oscillators system, and has attracted a lot of attention in the last decade. However, the recent studies indicate that this state is also possible in globally coupled systems. In the first part of this work, we show under which conditions the chimera-like state appears in a system of globally coupled identical oscillators with intrinsic delayed feedback. The results of the research explain how initially monostable oscillators became effectivly bistable in the presence of the coupling and create a mean field that sustain the coexistence of synchronized and desynchronized states. Also we discuss other examples, where chimera-like state appears due to frequency dependence of the phase shift in the bistable system. In the second part, we make further investigation of this topic by modeling influence of an external periodic force to an oscillator with intrinsic delayed feedback. We made stability analysis of the synchronized state and constructed Arnold tongues. The results explain formation of the chimera-like state and hysteric behavior of the synchronization area. Also, we consider two sets of parameters of the oscillator with symmetric and asymmetric Arnold tongues, that correspond to mono- and bi-stable regimes of the oscillator. In the third part, we demonstrate the results of the work, which was done in collaboration with our colleagues from Psychology Department of University of Potsdam. The project aimed to study the effect of the cardiac rhythm on human perception of time using synchronization analysis. From our part, we made a statistical analysis of the data obtained from the conducted experiment on free time interval reproduction task. We examined how ones heartbeat influences the time perception and searched for possible phase synchronization between heartbeat cycles and time reproduction responses. The findings support the prediction that cardiac cycles can serve as input signals, and is used for reproduction of time intervals in the range of several seconds.']
### GND ID:
['gnd:1078749507', 'gnd:4067473-3', 'gnd:4125645-1', 'gnd:4130847-5', 'gnd:4132814-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839327587']
### GND class:
['Yeldesbay, Azamat', 'Zeitwahrnehmung', 'Herzfrequenz', 'Synchronisierung', 'Oszillator']
<|eot_id|> |
3A839334621.jsonld | ['Polyelectrolyte multilayers for plasmonics and picosecond ultrasonics'] | ["This thesis investigates the application of polyelectrolyte multilayers in plasmonics and picosecond acoustics. The observed samples were fabricated by the spin-assisted layer-by-layer deposition technique that allowed a precise tuning of layer thickness in the range of few nanometers. The first field of interest deals with the interaction of light-induced localized surface plasmons (LSP) of rod-shaped gold nanoparticles with the particles' environment. The environment consists of an air phase and a phase of polyelectrolytes, whose ratio affects the spectral position of the LSP resonance. Measured UV-VIS spectra showed the shift of the LSP absorption peak as a function of the cover layer thickness of the particles. The data are modeled using an average dielectric function instead of the dielectric functions of air and polyelectrolytes. In addition using a measured dielectric function of the gold nanoparticles, the position of the LSP absorption peak could be simulated with good agreement to the data. The analytic model hel…"] | ['gnd:1078754349', 'gnd:4157819-3', 'gnd:4161090-8', 'gnd:4172251-6', 'gnd:4175165-6', 'gnd:4244347-7', 'gnd:4333369-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839334621'] | ['Mitzscherling, Steffen', 'Gold', 'Hyperschall', 'Oberflächenplasmon', 'Polyelektrolyt', 'Mehrschichtsystem', 'Nanopartikel'] | Document
### Title: ['Polyelectrolyte multilayers for plasmonics and picosecond ultrasonics']
### Abstract:
["This thesis investigates the application of polyelectrolyte multilayers in plasmonics and picosecond acoustics. The observed samples were fabricated by the spin-assisted layer-by-layer deposition technique that allowed a precise tuning of layer thickness in the range of few nanometers. The first field of interest deals with the interaction of light-induced localized surface plasmons (LSP) of rod-shaped gold nanoparticles with the particles' environment. The environment consists of an air phase and a phase of polyelectrolytes, whose ratio affects the spectral position of the LSP resonance. Measured UV-VIS spectra showed the shift of the LSP absorption peak as a function of the cover layer thickness of the particles. The data are modeled using an average dielectric function instead of the dielectric functions of air and polyelectrolytes. In addition using a measured dielectric function of the gold nanoparticles, the position of the LSP absorption peak could be simulated with good agreement to the data. The analytic model hel…"]
### GND ID:
['gnd:1078754349', 'gnd:4157819-3', 'gnd:4161090-8', 'gnd:4172251-6', 'gnd:4175165-6', 'gnd:4244347-7', 'gnd:4333369-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839334621']
### GND class:
['Mitzscherling, Steffen', 'Gold', 'Hyperschall', 'Oberflächenplasmon', 'Polyelektrolyt', 'Mehrschichtsystem', 'Nanopartikel']
<|eot_id|> |
3A839411308.jsonld | ['Climate policy and the intertemporal supply of fossil resources'] | ["This thesis was written by Christian Beermann while he was a research assistant at the Center for Economic Studies (CES) at the University of Munich. It was completed in December 2014 and accepted as a doctoral thesis by the Department of Economics at the University of Munich in May 2015. The thesis analyses the intertemporal supply reaction of the fossil resource supply side to demand-reducing climate policies while explicitly taking into account the global warming problem. The interaction between a climate coalition that can either be global or incomplete, comprising only a subset of the world's countries in the latter case, and a representative competitive resource supplier is analysed in a Stackelberg differential game in which the coalition leads."] | ['gnd:1075931150', 'gnd:4027491-3', 'gnd:4061638-1', 'gnd:4211713-6', 'gnd:4400948-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839411308'] | ['Beermann, Christian', 'Intertemporale Allokation', 'Umweltökonomie', 'Fossiler Brennstoff', 'Ressourcenökonomie'] | Document
### Title: ['Climate policy and the intertemporal supply of fossil resources']
### Abstract:
["This thesis was written by Christian Beermann while he was a research assistant at the Center for Economic Studies (CES) at the University of Munich. It was completed in December 2014 and accepted as a doctoral thesis by the Department of Economics at the University of Munich in May 2015. The thesis analyses the intertemporal supply reaction of the fossil resource supply side to demand-reducing climate policies while explicitly taking into account the global warming problem. The interaction between a climate coalition that can either be global or incomplete, comprising only a subset of the world's countries in the latter case, and a representative competitive resource supplier is analysed in a Stackelberg differential game in which the coalition leads."]
### GND ID:
['gnd:1075931150', 'gnd:4027491-3', 'gnd:4061638-1', 'gnd:4211713-6', 'gnd:4400948-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839411308']
### GND class:
['Beermann, Christian', 'Intertemporale Allokation', 'Umweltökonomie', 'Fossiler Brennstoff', 'Ressourcenökonomie']
<|eot_id|> |
3A839760116.jsonld | ['Wirtschaft - Macht - Bürgerbewusstsein : Walter Euckens Beitrag zur sozioökonomischen Bildung'] | ['Ökonomische Bildung, Ordoliberalismus, politische Bildung, soziale Marktwirtschaft, Wirtschaftswissenschaften. - Economic education, ordoliberalism, political education, social market economy, economics'] | ['gnd:118682563', 'gnd:4011882-4', 'gnd:4046540-8', 'gnd:4115461-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839760116'] | ['Eucken, Walter 1891-1950', 'Deutschland', 'Politische Kultur', 'Ordoliberalismus'] | Document
### Title: ['Wirtschaft - Macht - Bürgerbewusstsein : Walter Euckens Beitrag zur sozioökonomischen Bildung']
### Abstract:
['Ökonomische Bildung, Ordoliberalismus, politische Bildung, soziale Marktwirtschaft, Wirtschaftswissenschaften. - Economic education, ordoliberalism, political education, social market economy, economics']
### GND ID:
['gnd:118682563', 'gnd:4011882-4', 'gnd:4046540-8', 'gnd:4115461-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839760116']
### GND class:
['Eucken, Walter 1891-1950', 'Deutschland', 'Politische Kultur', 'Ordoliberalismus']
<|eot_id|> |
3A839819021.jsonld | ['Contributions to the selection and implementation of standard software for CRM and electronic invoicing'] | ['Customer relationship management, system selection, electronic invoice processes, structural equation modeling, DeLone and McLean IS success model, risk management, maturity model, process model. - Systemauswahl, elektronische Rechnungsprozesse, Strukturgleichungsmodellierung, DeLone und McLean IS-Erfolgsmodell, Risikomanagement, Reifegradmodell, Vorgehensmodell'] | ['gnd:123042127', 'gnd:123118794', 'gnd:4114012-6', 'gnd:4121590-4', 'gnd:4236865-0', 'gnd:4252999-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839819021'] | ['Wiedmann, Klaus-Peter', 'Breitner, Michael H.', 'Informationsmanagement', 'Risikomanagement', 'Kundenmanagement', 'Strukturgleichungsmodell', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Contributions to the selection and implementation of standard software for CRM and electronic invoicing']
### Abstract:
['Customer relationship management, system selection, electronic invoice processes, structural equation modeling, DeLone and McLean IS success model, risk management, maturity model, process model. - Systemauswahl, elektronische Rechnungsprozesse, Strukturgleichungsmodellierung, DeLone und McLean IS-Erfolgsmodell, Risikomanagement, Reifegradmodell, Vorgehensmodell']
### GND ID:
['gnd:123042127', 'gnd:123118794', 'gnd:4114012-6', 'gnd:4121590-4', 'gnd:4236865-0', 'gnd:4252999-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A839819021']
### GND class:
['Wiedmann, Klaus-Peter', 'Breitner, Michael H.', 'Informationsmanagement', 'Risikomanagement', 'Kundenmanagement', 'Strukturgleichungsmodell', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A840183941.jsonld | ['Interrogation of passive wireless sensors in harsh environments'] | ['Zusammenfassung: The automotive, aerospace and all other applications working in severe conditions require sensing solutions to monitor critical parameters in order to increase the systems lifetime or to reduce power consumption. The sensors must be small, robust and exhibit low manufacturing costs. Passive wireless sensors have the advantages that they do not require any battery and they can be interrogated with no physical connection to the reader electronics. This thesis reports the development of different torque and high temperature wireless sensing systems based on sensors initially used for radio frequency signal filtering: Surface Acoustic Wave (SAW) and microwave dielectric resonators. The described coupling methods between the reader antennas and the sensors improve the sensing accuracy, resolution, interrogation distance and immunity to the environmental clutter, currently being the main issues when using these sensors in harsh environments. Based on the piezoelectric effect and the propagated mechanical wave velocity dependence with the environment, SAW resonators are used for passive wireless torque or temperature sensing on rotating machinery. However, the main source of errors comes from the angular variations of the coupling between the coupler elements and the receiving coupler element impedance. This parasitic frequency shift is known as pulling effect and concerns all measurements using resonators. In this work, several wireless coupling solutions for the interrogation of SAW resonators on a clamp system fixed on a small diameter shaft are presented. The maintained solution is a capacitive coupler based on coplanar strip lines. It allows an angular transmission amplitude variation lower than 4 dB and a single 434 MHz resonator angular frequency pulling lower than 200 Hz (0.46 ppm). The RADAR-based interrogation, Finite Element Method (FEM) simulations, coupler parameters and frequency pulling measurement results are presented to demonstrate the performances of the complete sensing system. Dielectric resonators are resilient in harsh environments where SAW sensors suffer from the packaging and the radiating element constraints. In this work, the sensitivity of multi-mode dielectric resonators over temperature is investigated. The resonance frequency shift is due to the material permittivity change and the thermal expansion. Moreover, dielectric resonators are physically connected to metallic surfaces in order to get a sufficient coupling ...'] | ['gnd:1078982848', 'gnd:4136749-2', 'gnd:4789222-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840183941'] | ['Boccard, Jean-Michel', 'Elektrizitätsverbrauch', 'Drahtloses Sensorsystem'] | Document
### Title: ['Interrogation of passive wireless sensors in harsh environments']
### Abstract:
['Zusammenfassung: The automotive, aerospace and all other applications working in severe conditions require sensing solutions to monitor critical parameters in order to increase the systems lifetime or to reduce power consumption. The sensors must be small, robust and exhibit low manufacturing costs. Passive wireless sensors have the advantages that they do not require any battery and they can be interrogated with no physical connection to the reader electronics. This thesis reports the development of different torque and high temperature wireless sensing systems based on sensors initially used for radio frequency signal filtering: Surface Acoustic Wave (SAW) and microwave dielectric resonators. The described coupling methods between the reader antennas and the sensors improve the sensing accuracy, resolution, interrogation distance and immunity to the environmental clutter, currently being the main issues when using these sensors in harsh environments. Based on the piezoelectric effect and the propagated mechanical wave velocity dependence with the environment, SAW resonators are used for passive wireless torque or temperature sensing on rotating machinery. However, the main source of errors comes from the angular variations of the coupling between the coupler elements and the receiving coupler element impedance. This parasitic frequency shift is known as pulling effect and concerns all measurements using resonators. In this work, several wireless coupling solutions for the interrogation of SAW resonators on a clamp system fixed on a small diameter shaft are presented. The maintained solution is a capacitive coupler based on coplanar strip lines. It allows an angular transmission amplitude variation lower than 4 dB and a single 434 MHz resonator angular frequency pulling lower than 200 Hz (0.46 ppm). The RADAR-based interrogation, Finite Element Method (FEM) simulations, coupler parameters and frequency pulling measurement results are presented to demonstrate the performances of the complete sensing system. Dielectric resonators are resilient in harsh environments where SAW sensors suffer from the packaging and the radiating element constraints. In this work, the sensitivity of multi-mode dielectric resonators over temperature is investigated. The resonance frequency shift is due to the material permittivity change and the thermal expansion. Moreover, dielectric resonators are physically connected to metallic surfaces in order to get a sufficient coupling ...']
### GND ID:
['gnd:1078982848', 'gnd:4136749-2', 'gnd:4789222-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840183941']
### GND class:
['Boccard, Jean-Michel', 'Elektrizitätsverbrauch', 'Drahtloses Sensorsystem']
<|eot_id|> |
3A840216890.jsonld | ['Labor precarity and unionism in Chile : new directions and strategies of workers in a context of labor precarity (1975-2010)'] | ['This research seeks to explain changes in labor relations, the emergence of new forms of employment and its effects on unionism in the period between 1975 and 2010 in Chile. This research take into account the changes in the world of work, especially the phenomenon of labor precariousness, and the trajectories and emerging union strategies in this process. In this current rant, between labor precariousness and organization of union actors (stakeholders), we seek to relate the transformation of the labor conditions and the union activity in Chile. We assert that there is an adaptive heterogeneity and limited diversification of union strategies in the context of labor precariousness in Chile, which is possible to prove and verify through the experience of union leaders from different companies and productive sectors of the country, and the tendencies in indicators and labor statistics. It is in this current tension between labor precarity and organization of union actors (stakeholders) that our principal research questions arise: How has the process of labor precarity modified, altered or rearranged union activity? Are new union strategies emerging in the context of labor precarity? Are we in a process of synchronization of labor precarity tendencies and the transformation of the world of work with new core problems for unions? In this study we assert that there is an adaptive heterogeneity and limited diversification of union strategies occurring in the context of labor precarity in Chile, which is possible to prove and verify based on the experience of union leaders from different companies and productive sectors of the country. Although a series of studies confirms the phenomenon of labor precarity in different contexts (such as productive sectors, occupations, gender, etc.), there is no research linking the transformation of working conditions, the regulatory framework, the occupational structure and impacts on the adjustments of union strategies in Chile. In order to contextualize this debate, in the first part of this research we analyze a theoretical construction of labor precariousness, from the Latin American experience, problematizing its emergency in a productive, spatial and temporary context, in relation to an industrialized Europe, where the discussion of labor precariousness originally emerges.'] | ['gnd:1084588420', 'gnd:36164-1', 'gnd:4009929-5', 'gnd:4020872-2', 'gnd:7590592-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840216890'] | ['Julián Véjar, Dasten', 'Friedrich-Schiller-Universität Jena', 'Chile', 'Gewerkschaft', 'Prekariat'] | Document
### Title: ['Labor precarity and unionism in Chile : new directions and strategies of workers in a context of labor precarity (1975-2010)']
### Abstract:
['This research seeks to explain changes in labor relations, the emergence of new forms of employment and its effects on unionism in the period between 1975 and 2010 in Chile. This research take into account the changes in the world of work, especially the phenomenon of labor precariousness, and the trajectories and emerging union strategies in this process. In this current rant, between labor precariousness and organization of union actors (stakeholders), we seek to relate the transformation of the labor conditions and the union activity in Chile. We assert that there is an adaptive heterogeneity and limited diversification of union strategies in the context of labor precariousness in Chile, which is possible to prove and verify through the experience of union leaders from different companies and productive sectors of the country, and the tendencies in indicators and labor statistics. It is in this current tension between labor precarity and organization of union actors (stakeholders) that our principal research questions arise: How has the process of labor precarity modified, altered or rearranged union activity? Are new union strategies emerging in the context of labor precarity? Are we in a process of synchronization of labor precarity tendencies and the transformation of the world of work with new core problems for unions? In this study we assert that there is an adaptive heterogeneity and limited diversification of union strategies occurring in the context of labor precarity in Chile, which is possible to prove and verify based on the experience of union leaders from different companies and productive sectors of the country. Although a series of studies confirms the phenomenon of labor precarity in different contexts (such as productive sectors, occupations, gender, etc.), there is no research linking the transformation of working conditions, the regulatory framework, the occupational structure and impacts on the adjustments of union strategies in Chile. In order to contextualize this debate, in the first part of this research we analyze a theoretical construction of labor precariousness, from the Latin American experience, problematizing its emergency in a productive, spatial and temporary context, in relation to an industrialized Europe, where the discussion of labor precariousness originally emerges.']
### GND ID:
['gnd:1084588420', 'gnd:36164-1', 'gnd:4009929-5', 'gnd:4020872-2', 'gnd:7590592-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840216890']
### GND class:
['Julián Véjar, Dasten', 'Friedrich-Schiller-Universität Jena', 'Chile', 'Gewerkschaft', 'Prekariat']
<|eot_id|> |
3A840789904.jsonld | ['Models for the h cluster of the [FeFe]-hydrogenase : synthesis, protonation and electrochemical investigations'] | ['The investigations of the ability of the [FeFe]-hydrogenase models toward the electrocatalytic reduction of protons showed that the presence of protonation sites on the model complex is important to lower the overpotential of proton reduction and to enhance the catalytic activity. Figure 1 provides an overview for different derivatization strategies of various [FeFe]-hydrogenase models that are described in this thesis.'] | ['gnd:1130788806', 'gnd:36164-1', 'gnd:4307048-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840789904'] | ['Almazahreh, Laith', 'Friedrich-Schiller-Universität Jena', 'Protonierung'] | Document
### Title: ['Models for the h cluster of the [FeFe]-hydrogenase : synthesis, protonation and electrochemical investigations']
### Abstract:
['The investigations of the ability of the [FeFe]-hydrogenase models toward the electrocatalytic reduction of protons showed that the presence of protonation sites on the model complex is important to lower the overpotential of proton reduction and to enhance the catalytic activity. Figure 1 provides an overview for different derivatization strategies of various [FeFe]-hydrogenase models that are described in this thesis.']
### GND ID:
['gnd:1130788806', 'gnd:36164-1', 'gnd:4307048-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840789904']
### GND class:
['Almazahreh, Laith', 'Friedrich-Schiller-Universität Jena', 'Protonierung']
<|eot_id|> |
3A840792506.jsonld | ['Towards understanding belowground resources acquisition : applying data driven methods for deriving root water uptake profiles in grasslands of different diversity'] | ['Although root water uptake is an important component in the plant-soil-water relation for single plants and on ecosystem scale, studies investigating the effect of co-existing plant species on community water use have been conducted without estimating root water uptake profiles. However, knowledge of root water uptake is essential for understanding of intra- and interspecific interactions of plants. For those reasons, minimal-invasive and easy to use methods for estimating root water uptake are inevitable. Within this dissertation, an attempt has been made to identify a simple but sufficient accurate method for estimating evapotranspiration and root water uptake profiles from soil water content measurements without a priori information on root distribution parameters. Subsequently, this method was applied to investigate the effect of co-existing plant species on community root water uptake. First, four different complex water balance methods were evaluated regarding their applicability on the ecohydrological issue. Therefore, a synthetic experiment with numerical simulations for a grassland ecosystem was conducted. In the second part, an additional accuracy assessment considering magnitudes of evapotranspiration, soil texture variability, and sensor uncertainty was carried out on 12 weighable lysimeters. Third, we investigated the effect of co-existing plant species on the community root water uptake. Analysis of estimated root water uptake profiles were combined with measurements of leaf water potentials and stomatal conductance, which constitutes the novelty of this thesis. The results indicate that the investigated communities with higher species richness are able to adjust their root water uptake strategy in a way that the water use of the entire community is optimized.'] | ['gnd:1130812200', 'gnd:36164-1', 'gnd:4076675-5', 'gnd:4158359-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840792506'] | ['Guderle, Marcus', 'Friedrich-Schiller-Universität Jena', 'Ressourcen', 'Grünland'] | Document
### Title: ['Towards understanding belowground resources acquisition : applying data driven methods for deriving root water uptake profiles in grasslands of different diversity']
### Abstract:
['Although root water uptake is an important component in the plant-soil-water relation for single plants and on ecosystem scale, studies investigating the effect of co-existing plant species on community water use have been conducted without estimating root water uptake profiles. However, knowledge of root water uptake is essential for understanding of intra- and interspecific interactions of plants. For those reasons, minimal-invasive and easy to use methods for estimating root water uptake are inevitable. Within this dissertation, an attempt has been made to identify a simple but sufficient accurate method for estimating evapotranspiration and root water uptake profiles from soil water content measurements without a priori information on root distribution parameters. Subsequently, this method was applied to investigate the effect of co-existing plant species on community root water uptake. First, four different complex water balance methods were evaluated regarding their applicability on the ecohydrological issue. Therefore, a synthetic experiment with numerical simulations for a grassland ecosystem was conducted. In the second part, an additional accuracy assessment considering magnitudes of evapotranspiration, soil texture variability, and sensor uncertainty was carried out on 12 weighable lysimeters. Third, we investigated the effect of co-existing plant species on the community root water uptake. Analysis of estimated root water uptake profiles were combined with measurements of leaf water potentials and stomatal conductance, which constitutes the novelty of this thesis. The results indicate that the investigated communities with higher species richness are able to adjust their root water uptake strategy in a way that the water use of the entire community is optimized.']
### GND ID:
['gnd:1130812200', 'gnd:36164-1', 'gnd:4076675-5', 'gnd:4158359-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840792506']
### GND class:
['Guderle, Marcus', 'Friedrich-Schiller-Universität Jena', 'Ressourcen', 'Grünland']
<|eot_id|> |
3A840829116.jsonld | ['Ending slavery : hierarchy, dependency and gender in central Mauritania'] | ['“Ending Slavery” offers insights into the “how” of practices of slavery that persist in parts of Mauritania up to the present day. It brings to the light the gendered structures of Moorish slavery, and examines their impact on strategies and tactics designed to bring this institution to an end. Underlying this study is empirical data gathered during two periods of field research in rural central Mauritania. The analysis of life histories of slaves and freed slaves, but also of tributaries and free Moors plays a key role in the book.'] | ['gnd:4038051-8', 'gnd:4055260-3', 'gnd:4130238-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840829116'] | ['Mauretanien', 'Sklaverei', 'Beendigung'] | Document
### Title: ['Ending slavery : hierarchy, dependency and gender in central Mauritania']
### Abstract:
['“Ending Slavery” offers insights into the “how” of practices of slavery that persist in parts of Mauritania up to the present day. It brings to the light the gendered structures of Moorish slavery, and examines their impact on strategies and tactics designed to bring this institution to an end. Underlying this study is empirical data gathered during two periods of field research in rural central Mauritania. The analysis of life histories of slaves and freed slaves, but also of tributaries and free Moors plays a key role in the book.']
### GND ID:
['gnd:4038051-8', 'gnd:4055260-3', 'gnd:4130238-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840829116']
### GND class:
['Mauretanien', 'Sklaverei', 'Beendigung']
<|eot_id|> |
3A840831110.jsonld | ['The politics of imagination : Benjamin, Kracauer, Kluge'] | ["This book explores Walter Benjamin, Siegfried Kracauer and Alexander Kluge's analyses of the role that a rejuvenation in the capacity for imagination can play in encouraging us to reconceive the possibilities of the past, the present, and the future outside of the parameters of the status quo. The concept of imagination to which the title of the book refers is not a strictly defined, stable concept, but rather a term which is employed to refer to a capacity that facilitates both an active, creative relationship to one's environment, and a process of mediation between the outside world and one's own experiences and memories. Through a detailed analysis of their engagements with subjects that span a broad range of historical and thematic contexts (including topics as diverse as literature, children's play, film, photography, history, and television) the book charts the extent to which the concept of imagination plays a central role in Benjamin, Kracauer, and Kluge's explorations of a mode of perception and experience which could serve as a catalyst for the creation and sustenance of a desire for a different kind of future."] | ['gnd:118509039', 'gnd:118563491', 'gnd:118565877', 'gnd:133432432', 'gnd:4015272-8', 'gnd:4017102-4', 'gnd:4033422-3', 'gnd:4072730-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840831110'] | ['Benjamin, Walter 1892-1940', 'Kluge, Alexander 1932', 'Kracauer, Siegfried 1889-1966', 'Forrest, Tara', 'Erinnerung', 'Film', 'Künste', 'Imagination'] | Document
### Title: ['The politics of imagination : Benjamin, Kracauer, Kluge']
### Abstract:
["This book explores Walter Benjamin, Siegfried Kracauer and Alexander Kluge's analyses of the role that a rejuvenation in the capacity for imagination can play in encouraging us to reconceive the possibilities of the past, the present, and the future outside of the parameters of the status quo. The concept of imagination to which the title of the book refers is not a strictly defined, stable concept, but rather a term which is employed to refer to a capacity that facilitates both an active, creative relationship to one's environment, and a process of mediation between the outside world and one's own experiences and memories. Through a detailed analysis of their engagements with subjects that span a broad range of historical and thematic contexts (including topics as diverse as literature, children's play, film, photography, history, and television) the book charts the extent to which the concept of imagination plays a central role in Benjamin, Kracauer, and Kluge's explorations of a mode of perception and experience which could serve as a catalyst for the creation and sustenance of a desire for a different kind of future."]
### GND ID:
['gnd:118509039', 'gnd:118563491', 'gnd:118565877', 'gnd:133432432', 'gnd:4015272-8', 'gnd:4017102-4', 'gnd:4033422-3', 'gnd:4072730-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840831110']
### GND class:
['Benjamin, Walter 1892-1940', 'Kluge, Alexander 1932', 'Kracauer, Siegfried 1889-1966', 'Forrest, Tara', 'Erinnerung', 'Film', 'Künste', 'Imagination']
<|eot_id|> |
3A84083943X.jsonld | ['Abschied nehmen : Veränderungen einer kommunikativen Kultur im 19. und 20. Jahrhundert'] | ['"Farewells are a universal element of human experience, but their situational expressions and communicative structures are highly variable. In this history of leave-taking, Juliane Schröter shows how various forms of leave-taking changed during the 19th and 20th centuries and the ways these changes are linked to other cultural transformations."--'] | ['gnd:1108129005', 'gnd:36190-2', 'gnd:4031883-7', 'gnd:4056508-7', 'gnd:4074250-7', 'gnd:4113292-0', 'gnd:4158485-5', 'gnd:4165963-6', 'gnd:4191506-9', 'gnd:4215139-9', 'gnd:4234987-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A84083943X'] | ['Schröter, Juliane', 'Universität Zürich', 'Kommunikation', 'Sprachwandel', 'Linguistik', 'Deutsch', 'Gruß', 'Kulturanalyse', 'Sprachgebrauch', 'Abschied', 'Wandel'] | Document
### Title: ['Abschied nehmen : Veränderungen einer kommunikativen Kultur im 19. und 20. Jahrhundert']
### Abstract:
['"Farewells are a universal element of human experience, but their situational expressions and communicative structures are highly variable. In this history of leave-taking, Juliane Schröter shows how various forms of leave-taking changed during the 19th and 20th centuries and the ways these changes are linked to other cultural transformations."--']
### GND ID:
['gnd:1108129005', 'gnd:36190-2', 'gnd:4031883-7', 'gnd:4056508-7', 'gnd:4074250-7', 'gnd:4113292-0', 'gnd:4158485-5', 'gnd:4165963-6', 'gnd:4191506-9', 'gnd:4215139-9', 'gnd:4234987-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A84083943X']
### GND class:
['Schröter, Juliane', 'Universität Zürich', 'Kommunikation', 'Sprachwandel', 'Linguistik', 'Deutsch', 'Gruß', 'Kulturanalyse', 'Sprachgebrauch', 'Abschied', 'Wandel']
<|eot_id|> |
3A840885598.jsonld | ['Euler-Poincaré-Arnold equations on semi-direct products'] | ['Euler-Poincaré-Arnold equations, diffeomorphism group of the circle, semi-direct products. - Euler-Poincaré-Arnold Gleichung, Diffeomorphismengruppe des Einheitskreises, semidirekte Produkte'] | ['gnd:4149767-3', 'gnd:4316122-4', 'gnd:4424475-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840885598'] | ['Diffeomorphismus', 'Semidirektes Produkt', 'Euler-Poincaré-Formel'] | Document
### Title: ['Euler-Poincaré-Arnold equations on semi-direct products']
### Abstract:
['Euler-Poincaré-Arnold equations, diffeomorphism group of the circle, semi-direct products. - Euler-Poincaré-Arnold Gleichung, Diffeomorphismengruppe des Einheitskreises, semidirekte Produkte']
### GND ID:
['gnd:4149767-3', 'gnd:4316122-4', 'gnd:4424475-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840885598']
### GND class:
['Diffeomorphismus', 'Semidirektes Produkt', 'Euler-Poincaré-Formel']
<|eot_id|> |
3A840924771.jsonld | ['Simulation of elastic-plastic material behaviour with uncertain material parameters : a spectral stochastic finite element method approach'] | ['Finite element method, stochastic theory, characterization of uncertainties, random fields/processes, polynomial chaos, linear stochastic finite elements, polynomial chaos algebra, non-linear stochastic finite elements. - Finite Elemente Methode, Stochastik, Charakterisierung von Unsicherheiten, Zufallsfelder/-prozesse, Polynom-Chaos, lineare stochastische Finite Elemente Methode, Polynom-Chaos Algebra, nicht-lineare stochastische Finite Elemente'] | ['gnd:4017233-8', 'gnd:4044614-1', 'gnd:4121729-9', 'gnd:4127344-8', 'gnd:4204381-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840924771'] | ['Finite-Elemente-Methode', 'Parameterschätzung', 'Stochastik', 'Stoffgesetz', 'Elastoplastizität', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Simulation of elastic-plastic material behaviour with uncertain material parameters : a spectral stochastic finite element method approach']
### Abstract:
['Finite element method, stochastic theory, characterization of uncertainties, random fields/processes, polynomial chaos, linear stochastic finite elements, polynomial chaos algebra, non-linear stochastic finite elements. - Finite Elemente Methode, Stochastik, Charakterisierung von Unsicherheiten, Zufallsfelder/-prozesse, Polynom-Chaos, lineare stochastische Finite Elemente Methode, Polynom-Chaos Algebra, nicht-lineare stochastische Finite Elemente']
### GND ID:
['gnd:4017233-8', 'gnd:4044614-1', 'gnd:4121729-9', 'gnd:4127344-8', 'gnd:4204381-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840924771']
### GND class:
['Finite-Elemente-Methode', 'Parameterschätzung', 'Stochastik', 'Stoffgesetz', 'Elastoplastizität', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A840948603.jsonld | ['The Harder-Narasimhan filtrations and rational contractions'] | ['Zusammenfassung: In this paper we investigate the relation between of the relative tangent sheaf of a rational contraction between toric varieties and the Harder-Narasimhan filtration of the tangent sheaf of the total space. On the course of the proof, we give a combinatorial description of the terms of the Harder-Narasimhan filtration of the tangent sheaf of given toric variety'] | ['gnd:1079075410', 'gnd:4581715-7', 'gnd:4786945-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840948603'] | ['Pang, Thiam-Sun', 'Algebraische Varietät', 'Torische Varietät'] | Document
### Title: ['The Harder-Narasimhan filtrations and rational contractions']
### Abstract:
['Zusammenfassung: In this paper we investigate the relation between of the relative tangent sheaf of a rational contraction between toric varieties and the Harder-Narasimhan filtration of the tangent sheaf of the total space. On the course of the proof, we give a combinatorial description of the terms of the Harder-Narasimhan filtration of the tangent sheaf of given toric variety']
### GND ID:
['gnd:1079075410', 'gnd:4581715-7', 'gnd:4786945-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840948603']
### GND class:
['Pang, Thiam-Sun', 'Algebraische Varietät', 'Torische Varietät']
<|eot_id|> |
3A840948638.jsonld | ['An international and national evaluation of child abuse in Iran and Germany'] | ['Zusammenfassung: “An International and National Evaluation of Child Abuse in Iran and Germany” examines the rights of children in the Islamic Republic of Iran (Iran) and the Federal Republic of Germany (Germany). The two countries were selected because of their fundamental differences in terms of legislations, definitions, and economic, cultural and religious aspects. Iranian laws are based on Islamic rules while there is no such requirement for legal rules in Germany. At study are the roots of child abuse in both countries and the important fundamental differences that exist, based on dominant culture and religion as well as economic and political conditions.The capacity of Iranian constitutional law, criminal law and civil law are evaluated through a comparative analysis of the constitutional law, criminal law and civil law of the Germany. The study demonstrates that Iranian legislators should base their legislation on international instruments to which Iran is a party in order to synthesize domestic laws and international standards by amending the laws concerning the rights of the child into more desirable ones. To that end, legislators should rely on the principle of “dynamicity” in Islamic jurisprudence to amend laws based on the existing conditions related to time and place. Such efforts not only help reduction of potential risks but also increase compliance with international standards.The study ultimately argues for the protection of children in legal proceedings as well as issuance and enforcement of court orders in both countries. Procedural laws in Iran do not provide children with any level of protection in proceedings. It is pertinent to attempt to make the highest possible level of alignment between procedural laws and international standards. Ongoing efforts to remedy the situation include a bill for the protection of children and adolescents. The bill is intended to prevent victimization and child abuse and to address the problems faced by victims and offenders in judicial proceedings. Lastly, the study explores an important question pertaining to whether Iranian and German laws provide children with proper criminal and non-criminal protections from child abuse. The study also examines the attitudes of Iranian parents to various issues, such as the prevalence of child abuse in Iran, discrimination between girls and boys and corporal punishment.The study concludes that society plays a significant role in the development of children i ...'] | ['gnd:1078780390', 'gnd:4011882-4', 'gnd:4027653-3', 'gnd:4030650-1', 'gnd:4033197-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840948638'] | ['Amrollahi Byouki, Mojgan', 'Deutschland', 'Iran', 'Kindesmisshandlung', 'Kriminologie'] | Document
### Title: ['An international and national evaluation of child abuse in Iran and Germany']
### Abstract:
['Zusammenfassung: “An International and National Evaluation of Child Abuse in Iran and Germany” examines the rights of children in the Islamic Republic of Iran (Iran) and the Federal Republic of Germany (Germany). The two countries were selected because of their fundamental differences in terms of legislations, definitions, and economic, cultural and religious aspects. Iranian laws are based on Islamic rules while there is no such requirement for legal rules in Germany. At study are the roots of child abuse in both countries and the important fundamental differences that exist, based on dominant culture and religion as well as economic and political conditions.The capacity of Iranian constitutional law, criminal law and civil law are evaluated through a comparative analysis of the constitutional law, criminal law and civil law of the Germany. The study demonstrates that Iranian legislators should base their legislation on international instruments to which Iran is a party in order to synthesize domestic laws and international standards by amending the laws concerning the rights of the child into more desirable ones. To that end, legislators should rely on the principle of “dynamicity” in Islamic jurisprudence to amend laws based on the existing conditions related to time and place. Such efforts not only help reduction of potential risks but also increase compliance with international standards.The study ultimately argues for the protection of children in legal proceedings as well as issuance and enforcement of court orders in both countries. Procedural laws in Iran do not provide children with any level of protection in proceedings. It is pertinent to attempt to make the highest possible level of alignment between procedural laws and international standards. Ongoing efforts to remedy the situation include a bill for the protection of children and adolescents. The bill is intended to prevent victimization and child abuse and to address the problems faced by victims and offenders in judicial proceedings. Lastly, the study explores an important question pertaining to whether Iranian and German laws provide children with proper criminal and non-criminal protections from child abuse. The study also examines the attitudes of Iranian parents to various issues, such as the prevalence of child abuse in Iran, discrimination between girls and boys and corporal punishment.The study concludes that society plays a significant role in the development of children i ...']
### GND ID:
['gnd:1078780390', 'gnd:4011882-4', 'gnd:4027653-3', 'gnd:4030650-1', 'gnd:4033197-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840948638']
### GND class:
['Amrollahi Byouki, Mojgan', 'Deutschland', 'Iran', 'Kindesmisshandlung', 'Kriminologie']
<|eot_id|> |
3A840950004.jsonld | ['Contact-free dispensing for in-vitro diagnostics : challenges of the reagent diversity on the performance of appropriate dispensing technologies'] | ['Zusammenfassung: Trends in the laboratory diagnostic are mainly triggered by the improvement of the medical values of the offered test parameters and the increase of the test efficiency. Improving the test efficiency and the accompanying economic added value for the healthcare system aims to reduce the costs per result. Two mayor cost factors for the IVD tests are the consumption of reagents and disposables. Hence, the trend of the industry is towards the reduction of the needed reagent volumes in future IVD analyzers, which could be achieved by better detection methods and innovative dispensing systems. A most promising method to handle reagent volumes down to the sub-µl-range is the usage of microfluidic contact-free dispensing systems. In this account it has to be ensured that the dispensing system ejects the whole spectrum of IVD reagents precisely and accurately. Aims of this work are the description of the whole IVD reagent spectrum according their fluidic properties; the evaluation of selected dispensing systems regarding their applicability as IVD reagent dispenser; and the definition of operational modes to ensure a lossless fluid transfer from the dispensing nozzle into the reaction vessel. The required energy for a contact-free fluid breakup form the dispensing nozzle is mainly determined by the fluid properties density, viscosity and surface tension. Hence, in order to ensure a reliable fluid breakup for all IVD reagents, these fluid properties have to be known. These are not disclosed in the scientific literature thus far; hence their determination is one key element of this work. To achieve this objective, a representative set of 646 IVD reagents are selected, measured and arranged in a diagram: the fluid properties landscape. Out of this landscape, eight simple and easy to prepare model fluids are developed covering almost the whole property range of the IVD reagents (offered by the Roche Diagnostics GmbH). They are aimed to evaluate dispensing systems for their applicability of dispensing the IVD reagents within the desired performance. It is demonstrated in this work that the model fluids behave like real IVD reagents when the aforementioned fluid properties are almost identical. The differences in their chemical compositions do not influence the dispensing result significantly so that instead of an evaluation with all IVD reagents, only an evaluation with these eight model fluids is sufficient.The required volume range of present and fut ...'] | ['gnd:1079293973', 'gnd:4134928-3', 'gnd:4250701-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840950004'] | ['Losleben, Nadine', 'Dosiereinrichtung', 'In vitro'] | Document
### Title: ['Contact-free dispensing for in-vitro diagnostics : challenges of the reagent diversity on the performance of appropriate dispensing technologies']
### Abstract:
['Zusammenfassung: Trends in the laboratory diagnostic are mainly triggered by the improvement of the medical values of the offered test parameters and the increase of the test efficiency. Improving the test efficiency and the accompanying economic added value for the healthcare system aims to reduce the costs per result. Two mayor cost factors for the IVD tests are the consumption of reagents and disposables. Hence, the trend of the industry is towards the reduction of the needed reagent volumes in future IVD analyzers, which could be achieved by better detection methods and innovative dispensing systems. A most promising method to handle reagent volumes down to the sub-µl-range is the usage of microfluidic contact-free dispensing systems. In this account it has to be ensured that the dispensing system ejects the whole spectrum of IVD reagents precisely and accurately. Aims of this work are the description of the whole IVD reagent spectrum according their fluidic properties; the evaluation of selected dispensing systems regarding their applicability as IVD reagent dispenser; and the definition of operational modes to ensure a lossless fluid transfer from the dispensing nozzle into the reaction vessel. The required energy for a contact-free fluid breakup form the dispensing nozzle is mainly determined by the fluid properties density, viscosity and surface tension. Hence, in order to ensure a reliable fluid breakup for all IVD reagents, these fluid properties have to be known. These are not disclosed in the scientific literature thus far; hence their determination is one key element of this work. To achieve this objective, a representative set of 646 IVD reagents are selected, measured and arranged in a diagram: the fluid properties landscape. Out of this landscape, eight simple and easy to prepare model fluids are developed covering almost the whole property range of the IVD reagents (offered by the Roche Diagnostics GmbH). They are aimed to evaluate dispensing systems for their applicability of dispensing the IVD reagents within the desired performance. It is demonstrated in this work that the model fluids behave like real IVD reagents when the aforementioned fluid properties are almost identical. The differences in their chemical compositions do not influence the dispensing result significantly so that instead of an evaluation with all IVD reagents, only an evaluation with these eight model fluids is sufficient.The required volume range of present and fut ...']
### GND ID:
['gnd:1079293973', 'gnd:4134928-3', 'gnd:4250701-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A840950004']
### GND class:
['Losleben, Nadine', 'Dosiereinrichtung', 'In vitro']
<|eot_id|> |
3A841164630.jsonld | ['On a finite element approach for the solution of a mechanically stimulated biochemical fracture healing model'] | ['Finite element method, bone fracture healing, bone repair, finite calculus method, time-discontinuous Galerkin method. - Finite Elemente Methode, Frakturheilung, Knochenregeneration, finite Calculus Methode, zeitdiskontinuierliches Galerkinverfahren'] | ['gnd:1088791166', 'gnd:4017233-8', 'gnd:4024087-3', 'gnd:4031318-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A841164630'] | ['Sapotnick, Alexander', 'Finite-Elemente-Methode', 'Heilung', 'Knochenbruch'] | Document
### Title: ['On a finite element approach for the solution of a mechanically stimulated biochemical fracture healing model']
### Abstract:
['Finite element method, bone fracture healing, bone repair, finite calculus method, time-discontinuous Galerkin method. - Finite Elemente Methode, Frakturheilung, Knochenregeneration, finite Calculus Methode, zeitdiskontinuierliches Galerkinverfahren']
### GND ID:
['gnd:1088791166', 'gnd:4017233-8', 'gnd:4024087-3', 'gnd:4031318-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A841164630']
### GND class:
['Sapotnick, Alexander', 'Finite-Elemente-Methode', 'Heilung', 'Knochenbruch']
<|eot_id|> |
3A841210179.jsonld | ['Pasture use of mobile pastoralists in Azerbaijan under institutional economic, farm economic and ecological aspects'] | [['Beweidung, Betriebsanalyse, Institutionenökonomie, Degradation, Aserbaidschan, sozial-ökologische Systeme, mobile Tierhaltung, Allmenderessourcen, Fallstudie, Social-ecological systems, mobile pastoralists, common pool resources, case study', 'Against the background of post-socialist transition and nationwide economic growth in Azerbaijan this dissertation analyses the utilisation of rangeland resources by mobile pastoralists in Azerbaijan. The study was motivated by the initially scarce knowledge about pastoralism in Azerbaijan and concerns about declining pasture condition due to growing livestock numbers. The study was guided by three research objectives, which were addressed cumulatively in five publications. The first objective aims at analysing the development of pastoralism in the transition period in comparison to developments in the pastoral sectors of other post-socialist countries. Secondly, the study addresses socio-economic causes of inappropriate pasture management by pastoralists. Finally, in an application-oriented research process recommendations for improving the management of pastoral farms and pasture governance were developed in order to mitigate inappropriate pasture management. For addressing these objectives the study frames the management of rangelands as a complex natural resource management system, in which the environment, users, governance structures, and the socio-political context are closely linked. Within this framework, the study focused especially on pastoral farms using a farm economics approach and on pasture governance with employing institutional economic theories. Regarding the methodology, a case study approach in four study regions was chosen in order to deal with the ...']] | ['gnd:1036470768', 'gnd:4006164-4', 'gnd:4027208-4', 'gnd:4043208-7', 'gnd:4068887-2', 'gnd:4075236-7', 'gnd:4112745-6', 'gnd:4140286-8', 'gnd:4200268-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A841210179'] | ['Neudert, Regina', 'Betriebsanalyse', 'Institutionenökonomie', 'Sozialökologie', 'Aserbaidschan', 'Natürliche Ressourcen', 'Beweidung', 'Nomadismus', 'Degradation'] | Document
### Title: ['Pasture use of mobile pastoralists in Azerbaijan under institutional economic, farm economic and ecological aspects']
### Abstract:
[['Beweidung, Betriebsanalyse, Institutionenökonomie, Degradation, Aserbaidschan, sozial-ökologische Systeme, mobile Tierhaltung, Allmenderessourcen, Fallstudie, Social-ecological systems, mobile pastoralists, common pool resources, case study', 'Against the background of post-socialist transition and nationwide economic growth in Azerbaijan this dissertation analyses the utilisation of rangeland resources by mobile pastoralists in Azerbaijan. The study was motivated by the initially scarce knowledge about pastoralism in Azerbaijan and concerns about declining pasture condition due to growing livestock numbers. The study was guided by three research objectives, which were addressed cumulatively in five publications. The first objective aims at analysing the development of pastoralism in the transition period in comparison to developments in the pastoral sectors of other post-socialist countries. Secondly, the study addresses socio-economic causes of inappropriate pasture management by pastoralists. Finally, in an application-oriented research process recommendations for improving the management of pastoral farms and pasture governance were developed in order to mitigate inappropriate pasture management. For addressing these objectives the study frames the management of rangelands as a complex natural resource management system, in which the environment, users, governance structures, and the socio-political context are closely linked. Within this framework, the study focused especially on pastoral farms using a farm economics approach and on pasture governance with employing institutional economic theories. Regarding the methodology, a case study approach in four study regions was chosen in order to deal with the ...']]
### GND ID:
['gnd:1036470768', 'gnd:4006164-4', 'gnd:4027208-4', 'gnd:4043208-7', 'gnd:4068887-2', 'gnd:4075236-7', 'gnd:4112745-6', 'gnd:4140286-8', 'gnd:4200268-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A841210179']
### GND class:
['Neudert, Regina', 'Betriebsanalyse', 'Institutionenökonomie', 'Sozialökologie', 'Aserbaidschan', 'Natürliche Ressourcen', 'Beweidung', 'Nomadismus', 'Degradation']
<|eot_id|> |
3A841256888.jsonld | ['Empirical essays on educational and labour market integration of immigrants'] | ['Integration, naturalisation, citizenship, education, human capital, on-the-job training. - Einbürgerung, Staatsangehörigkeit, Bildung, Humankapital, Weiterbildung'] | ['gnd:1082512141', 'gnd:4006650-2', 'gnd:4056630-4', 'gnd:4077570-7', 'gnd:4117622-4', 'gnd:4151434-8', 'gnd:4160783-1', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A841256888'] | ['Haaren-Giebel, Friederike', 'Bildung', 'Staatsangehörigkeit', 'Soziale Integration', 'Weiterbildung', 'Einwanderer', 'Humankapital', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Empirical essays on educational and labour market integration of immigrants']
### Abstract:
['Integration, naturalisation, citizenship, education, human capital, on-the-job training. - Einbürgerung, Staatsangehörigkeit, Bildung, Humankapital, Weiterbildung']
### GND ID:
['gnd:1082512141', 'gnd:4006650-2', 'gnd:4056630-4', 'gnd:4077570-7', 'gnd:4117622-4', 'gnd:4151434-8', 'gnd:4160783-1', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A841256888']
### GND class:
['Haaren-Giebel, Friederike', 'Bildung', 'Staatsangehörigkeit', 'Soziale Integration', 'Weiterbildung', 'Einwanderer', 'Humankapital', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A842172483.jsonld | ['Die Physiologie von Endothelzellen im Tissue Engineering'] | ['Kegel-Platte-Bioreaktor, Schubspannungen, Gefäßprothesen-Scaffolds. - Cone-and-plate bioreactor, shear stress, vascular graft scaffolds'] | ['gnd:1149266910', 'gnd:172099080', 'gnd:4152192-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842172483'] | ['Ngezahayo, Anaclet', 'Glasmacher, Birgit', 'Endothelzelle', 'Gottfried Wilhelm Leibniz Universität Hannover'] | Document
### Title: ['Die Physiologie von Endothelzellen im Tissue Engineering']
### Abstract:
['Kegel-Platte-Bioreaktor, Schubspannungen, Gefäßprothesen-Scaffolds. - Cone-and-plate bioreactor, shear stress, vascular graft scaffolds']
### GND ID:
['gnd:1149266910', 'gnd:172099080', 'gnd:4152192-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842172483']
### GND class:
['Ngezahayo, Anaclet', 'Glasmacher, Birgit', 'Endothelzelle', 'Gottfried Wilhelm Leibniz Universität Hannover']
<|eot_id|> |
3A842291202.jsonld | ['Körper, Uniformen und Offiziere : soldatische Männlichkeiten in der Literatur von Grimmelshausen und J.M.R. Lenz bis Ernst Jünger und Hermann Broch'] | ['Explores concepts of masculinity in German, Austrian, and French literature from the 17th century through World War I in the context of the male body in military uniform'] | ['gnd:173766692', 'gnd:4047497-5', 'gnd:4113292-0', 'gnd:4342864-2', 'gnd:4372433-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842291202'] | ['Voß, Torsten', 'Prosa', 'Deutsch', 'Offizier (Motiv)', 'Männlichkeit (Motiv)'] | Document
### Title: ['Körper, Uniformen und Offiziere : soldatische Männlichkeiten in der Literatur von Grimmelshausen und J.M.R. Lenz bis Ernst Jünger und Hermann Broch']
### Abstract:
['Explores concepts of masculinity in German, Austrian, and French literature from the 17th century through World War I in the context of the male body in military uniform']
### GND ID:
['gnd:173766692', 'gnd:4047497-5', 'gnd:4113292-0', 'gnd:4342864-2', 'gnd:4372433-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842291202']
### GND class:
['Voß, Torsten', 'Prosa', 'Deutsch', 'Offizier (Motiv)', 'Männlichkeit (Motiv)']
<|eot_id|> |
3A842313354.jsonld | ['The efficiency of early warning indicators for financial crises'] | ['The banking and currency crises of the last two decades inflicted substantial financial, economic, and social damage on the countries in which they originated. In this work, the efficiency of early warning indicators for these disastrous economic events is evaluated. An analysis of the traditional and recent literature on currency crises is performed in order to extract potential early warning indicators that are suggested by theory. Alongside others, these candidate indicators are tested in alternative empirical studies that are reviewed in this work. The results are mixed, but somewhat encouraging for further research in this field. Furthermore, the analysis is extended to a critique of systems of early warning indicators currently used by international institutions.'] | ['gnd:4123236-7', 'gnd:7635855-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842313354'] | ['Frühwarnsystem', 'Finanzkrise'] | Document
### Title: ['The efficiency of early warning indicators for financial crises']
### Abstract:
['The banking and currency crises of the last two decades inflicted substantial financial, economic, and social damage on the countries in which they originated. In this work, the efficiency of early warning indicators for these disastrous economic events is evaluated. An analysis of the traditional and recent literature on currency crises is performed in order to extract potential early warning indicators that are suggested by theory. Alongside others, these candidate indicators are tested in alternative empirical studies that are reviewed in this work. The results are mixed, but somewhat encouraging for further research in this field. Furthermore, the analysis is extended to a critique of systems of early warning indicators currently used by international institutions.']
### GND ID:
['gnd:4123236-7', 'gnd:7635855-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842313354']
### GND class:
['Frühwarnsystem', 'Finanzkrise']
<|eot_id|> |
3A842568425.jsonld | ['Moisture availability in the Tangra Yumco region during the Late Quaternary and the implications for the precipitation regime on the southern Tibetan Plateau'] | ['It is generally accepted that the Asian summer monsoon systems as well as the westerlies affect the precipitation regime on the Tibetan Plateau. The spatial and temporal variability of the monsoon has, however, been under strong discussion in recent years. The question arose whether the spatial and temporal monsoonal dynamics show a generally homogenous or heterogeneous pattern. To investigate the temporal and spatial variability of the monsoonal pattern three lakes along an east-west-transect on the southern Tibetan Plateau including Nam Co, Tangra Yumco, and Taro Co were targeted within the framework of the DFG priority program 1372 “TiP – Tibetan Plateau: Formation–Climate–Ecosystems”. This thesis comprises three independent studies, examining the central lake Tangra Yumco and its catchment revealing that the monsoonal dynamics on the southern Tibetan Plateau show a generally homogenous pattern.'] | ['gnd:1081036451', 'gnd:36164-1', 'gnd:4031170-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842568425'] | ['Ahlborn, Marieke', 'Friedrich-Schiller-Universität Jena', 'Klima'] | Document
### Title: ['Moisture availability in the Tangra Yumco region during the Late Quaternary and the implications for the precipitation regime on the southern Tibetan Plateau']
### Abstract:
['It is generally accepted that the Asian summer monsoon systems as well as the westerlies affect the precipitation regime on the Tibetan Plateau. The spatial and temporal variability of the monsoon has, however, been under strong discussion in recent years. The question arose whether the spatial and temporal monsoonal dynamics show a generally homogenous or heterogeneous pattern. To investigate the temporal and spatial variability of the monsoonal pattern three lakes along an east-west-transect on the southern Tibetan Plateau including Nam Co, Tangra Yumco, and Taro Co were targeted within the framework of the DFG priority program 1372 “TiP – Tibetan Plateau: Formation–Climate–Ecosystems”. This thesis comprises three independent studies, examining the central lake Tangra Yumco and its catchment revealing that the monsoonal dynamics on the southern Tibetan Plateau show a generally homogenous pattern.']
### GND ID:
['gnd:1081036451', 'gnd:36164-1', 'gnd:4031170-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A842568425']
### GND class:
['Ahlborn, Marieke', 'Friedrich-Schiller-Universität Jena', 'Klima']
<|eot_id|> |
3A843513446.jsonld | ['Wirtschaft - Macht - Bürgerbewusstsein : Walter Euckens Beitrag zur sozioökonomischen Bildung'] | ['Ökonomische Bildung, Ordoliberalismus, politische Bildung, soziale Marktwirtschaft, Wirtschaftswissenschaften. - Economic education, ordoliberalism, political education, social market economy, economics'] | ['gnd:118682563', 'gnd:4011882-4', 'gnd:4046540-8', 'gnd:4115461-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A843513446'] | ['Eucken, Walter 1891-1950', 'Deutschland', 'Politische Kultur', 'Ordoliberalismus'] | Document
### Title: ['Wirtschaft - Macht - Bürgerbewusstsein : Walter Euckens Beitrag zur sozioökonomischen Bildung']
### Abstract:
['Ökonomische Bildung, Ordoliberalismus, politische Bildung, soziale Marktwirtschaft, Wirtschaftswissenschaften. - Economic education, ordoliberalism, political education, social market economy, economics']
### GND ID:
['gnd:118682563', 'gnd:4011882-4', 'gnd:4046540-8', 'gnd:4115461-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A843513446']
### GND class:
['Eucken, Walter 1891-1950', 'Deutschland', 'Politische Kultur', 'Ordoliberalismus']
<|eot_id|> |
3A843517395.jsonld | ['Active and passive reduction of high order modes in the gravitational wave detector GEO 600'] | ['GEO 600, gravitational wave detector, high order modes, thermal compensation, astigmatism. - Gravitationswellendetektor, Moden höherer Ordnung, thermische Kompensation, Astigmatismus'] | ['gnd:1098550242', 'gnd:4170305-4', 'gnd:4224496-1', 'gnd:4322729-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A843517395'] | ['GEO 600 (Astronomie)', 'Moden', 'Laserstrahlung', 'Ordnung n'] | Document
### Title: ['Active and passive reduction of high order modes in the gravitational wave detector GEO 600']
### Abstract:
['GEO 600, gravitational wave detector, high order modes, thermal compensation, astigmatism. - Gravitationswellendetektor, Moden höherer Ordnung, thermische Kompensation, Astigmatismus']
### GND ID:
['gnd:1098550242', 'gnd:4170305-4', 'gnd:4224496-1', 'gnd:4322729-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A843517395']
### GND class:
['GEO 600 (Astronomie)', 'Moden', 'Laserstrahlung', 'Ordnung n']
<|eot_id|> |
3A84358856X.jsonld | ['Investigating the pore structure of blended cement with synchrotron microtomography'] | ['Zusammenfassung: Supplementary cementitious materials (SCMs) such as fly ash and slag are exten- sively used as mineral substitutes in cement and concrete production, owing to the lower energy consumption and reduced CO2 emission. The pore structure of such cement pastes plays an important role during hydration and, ultimately, durability.In this work, the pore structures of blended cement paste were investigated as a func- tion of hydration time and blending types by means of high resolution synchrotron tomography. Image processing algorithms are explored and their suitability for pore structure characterization is evaluated. The extracted data with respect to the pore features (volume, surface area, equivalent diameter, etc.) can then be summarized and described by box plots. Specifically, a modified box plot with a plateau indi- cating the systematic error is introduced to assess the segmentation precision. The applicability and robustness of this approach is evaluated using different sample sets and experiments. Further, durability and mass transport are examined by analysis the total pore volume and the effective connected pore-cluster.As a result of this work, synchrotron based microtomography is identified as a promising method for the study of pore structure in blended cements. The image processing algorithms are proven to have a low error level, and systematic errors in the examined pastes are in the same order as the corresponding stochastic er- rors. The results indicate that cement pastes benefit from SCMs in microstructure development. Moreover, moist environment has a significant refinement of pore structure. In particular, the average pore volume is up to ten times smaller than for conventional sealed cement pastes. A nonparametric approach to the segmentation systematic errors for the pore structure qualification of blended cement pastes is established'] | ['gnd:1079533907', 'gnd:4113240-3', 'gnd:4184235-2', 'gnd:4190687-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A84358856X'] | ['Feng, Chen', 'Computertomografie', 'Synchrotronstrahlung', 'Zementleim'] | Document
### Title: ['Investigating the pore structure of blended cement with synchrotron microtomography']
### Abstract:
['Zusammenfassung: Supplementary cementitious materials (SCMs) such as fly ash and slag are exten- sively used as mineral substitutes in cement and concrete production, owing to the lower energy consumption and reduced CO2 emission. The pore structure of such cement pastes plays an important role during hydration and, ultimately, durability.In this work, the pore structures of blended cement paste were investigated as a func- tion of hydration time and blending types by means of high resolution synchrotron tomography. Image processing algorithms are explored and their suitability for pore structure characterization is evaluated. The extracted data with respect to the pore features (volume, surface area, equivalent diameter, etc.) can then be summarized and described by box plots. Specifically, a modified box plot with a plateau indi- cating the systematic error is introduced to assess the segmentation precision. The applicability and robustness of this approach is evaluated using different sample sets and experiments. Further, durability and mass transport are examined by analysis the total pore volume and the effective connected pore-cluster.As a result of this work, synchrotron based microtomography is identified as a promising method for the study of pore structure in blended cements. The image processing algorithms are proven to have a low error level, and systematic errors in the examined pastes are in the same order as the corresponding stochastic er- rors. The results indicate that cement pastes benefit from SCMs in microstructure development. Moreover, moist environment has a significant refinement of pore structure. In particular, the average pore volume is up to ten times smaller than for conventional sealed cement pastes. A nonparametric approach to the segmentation systematic errors for the pore structure qualification of blended cement pastes is established']
### GND ID:
['gnd:1079533907', 'gnd:4113240-3', 'gnd:4184235-2', 'gnd:4190687-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A84358856X']
### GND class:
['Feng, Chen', 'Computertomografie', 'Synchrotronstrahlung', 'Zementleim']
<|eot_id|> |
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