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A comparative analysis of the cultural representation of disability in school textbooks in Iran and England
|
The paper details the findings of a study which focused on the analysis of the cultural representation ::: of disability in school textbooks in Iran and England. The paper argues that whilst inclusive education ::: could facilitate the incorporating of disabled pupils into mainstream schools, there needs to be deeper ::: examination as to how this transition should take place for children aged 3-13. The paper suggests that ::: in such examinations school textbooks might be of significance in familiarizing non-disabled pupils, ::: teachers and authorities with the issues related to disability and disabled pupils.
|
Is it possible to approach the suicide of teenage Inuit in the same way as in other communities, especially when taking into account the fact that suicide in Inuit is part of their traditions? The issue raised by the author essentially concerns the interpretation of data. This article offers new approaches to researching the meaning of suicide through a cultural viewpoint of the phenomenon and by taking into consideration the socio-political context. The author presents a new vision of suicide as an all-encompassing social fact that opens the door to more relevant interventions. Language: fr
|
eng_Latn
| 149,884 |
Solution-Focused Approaches in the Practice of UK Educational Psychologists
|
Solution-focused approaches are increasingly widely used in the practice of the applied educational psychologist (EP) (Ajmal and Rees, 2001; Durrant, 1993; Redpath and Harper, 1999; Rhodes and Ajmal, 1995). Based on a small-scale computer-mediated exploratory survey, this article examines the nature of such practice and investigates whether and how solution-focused practice is evaluated and contributes to EPs' knowledge and skills base. The exploratory study is integrated into an overview of solution-focused therapy and a literature review of the application of solution-focused practice by EPs. Based on the review and analysis of the survey, the article proposes ways by which solution-focused practice can be evaluated by busy EP practitioners and therefore become potentially evidence-based.
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Is it possible to approach the suicide of teenage Inuit in the same way as in other communities, especially when taking into account the fact that suicide in Inuit is part of their traditions? The issue raised by the author essentially concerns the interpretation of data. This article offers new approaches to researching the meaning of suicide through a cultural viewpoint of the phenomenon and by taking into consideration the socio-political context. The author presents a new vision of suicide as an all-encompassing social fact that opens the door to more relevant interventions. Language: fr
|
eng_Latn
| 149,885 |
Existential Experiences and Strategies in Relation to Induced Abortion: An Interview Study with 24 Swedish Women
|
Induced abortion is as common in religious as secular cultures, but interpretations and ways to handle abortion differ. This study focuses existential aspects of abortion, in relation to a seculari ...
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Is it possible to approach the suicide of teenage Inuit in the same way as in other communities, especially when taking into account the fact that suicide in Inuit is part of their traditions? The issue raised by the author essentially concerns the interpretation of data. This article offers new approaches to researching the meaning of suicide through a cultural viewpoint of the phenomenon and by taking into consideration the socio-political context. The author presents a new vision of suicide as an all-encompassing social fact that opens the door to more relevant interventions. Language: fr
|
eng_Latn
| 149,887 |
A Dynamic Econometric Study of Suicides in Turkey
|
This study is the first attempt to empirically examine the determinants of suicides in the case of Turkey using the time-series data for the period 1974-2007. This research proposes that the suicides in Turkey are related to some economic and social factors and they exhibit a dynamic relationship amongst them. Auto-Regressive Distributed Lag (ARDL) approach to cointegration testing procedure is employed to obtain the short-run and long-run elasticities of suicides with respect to per capita real income, divorce rates, urbanization and liquidation. The empirical results reveal that the urbanization has the highest impact on suicides, which is followed by per capita real income and liquidation. The results also provide some important policy recommendations to reduce suicides.
|
CITATION: Bassi, A. 2016. Moving towards integrated policy formulation and evaluation : the green economy model. Environmental and Climate Technologies, 16(1):5-19, doi:10.1515/rtuect-2015-0009.
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eng_Latn
| 149,888 |
“Life's but a walking shadow”; Treating anorexia nervosa and bulimia
|
Abstract A case study is presented in which various arts therapies were employed in the crisis intervention treatment of a sixteen-year-old male. The discussion argues that short-term therapy in such eating disorders as anorexia nervosa and bulimia is ill-advised and that the arts therapies are particularly applicable to the treatment of these disorders because their inherent qualities correspond to the symbolic behaviors.
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Is it possible to approach the suicide of teenage Inuit in the same way as in other communities, especially when taking into account the fact that suicide in Inuit is part of their traditions? The issue raised by the author essentially concerns the interpretation of data. This article offers new approaches to researching the meaning of suicide through a cultural viewpoint of the phenomenon and by taking into consideration the socio-political context. The author presents a new vision of suicide as an all-encompassing social fact that opens the door to more relevant interventions. Language: fr
|
eng_Latn
| 149,901 |
Perceptions of personal control and conformity of vocational choice as correlates of vocational development
|
Abstract This study examined differences in vocational maturity of women across different levels of internal-external control and typical versus atypical vocational choice. It was predicted that internally controlled women would have higher vocational maturity scores than externally controlled women; women who make atypical vocational choices would have higher vocational maturity scores than women who make typical choices. Data from the Attitude Scale of Crites' Career Maturity Inventory, MacDonald and Tseng's I-E Scale, and dichotomized ratings of typical versus atypical vocational choice were obtained from 179 freshmen to senior female student volunteers in a large New England university. Analysis of variance indicated that internally controlled women had significantly higher vocational maturity than externally controlled women ( p
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Is it possible to approach the suicide of teenage Inuit in the same way as in other communities, especially when taking into account the fact that suicide in Inuit is part of their traditions? The issue raised by the author essentially concerns the interpretation of data. This article offers new approaches to researching the meaning of suicide through a cultural viewpoint of the phenomenon and by taking into consideration the socio-political context. The author presents a new vision of suicide as an all-encompassing social fact that opens the door to more relevant interventions. Language: fr
|
eng_Latn
| 149,907 |
The Issei , Nisei and Sansei generations reflect distinctly different attitudes to authority , gender , non-Japanese involvement , and religious belief and practice , and other matters .
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The Issei , Nisei and Sansei generations reflect distinctly different attitudes to authority , gender , non-Japanese involvement , and religious practice , and other matters .
|
Epigenetics , the study of changes in genetic expression in response to environmental factors which do not alter the underlying DNA , may also play a role in determining suicide risk .
|
eng_Latn
| 149,914 |
Epigenetics , the study of changes in genetic expression in response to environmental factors which do not alter the underlying DNA , is also believed to play a role in determining suicide risk .
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Epigenetics , the study of changes in genetic expression in response to environmental factors which do not alter the underlying DNA , may also play a role in determining suicide risk .
|
the name `` suicide '' or `` suicida '' is used before any move that wrestler uses which goes either from the ring , the ring apron , or the turnbuckles to the outside of the ring .
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eng_Latn
| 149,930 |
The influence of subjects' personality traits on personal spatial zones in a human-robot interaction experiment
|
Social and collaborative aspects of interaction with a service robot
|
Planned complex suicide by penetrating captive-bolt gunshot and hanging: case study and review of the literature.
|
eng_Latn
| 149,931 |
i'm trying to find what religion has the higest suicide rate
|
Good question!\n\nI don't know the number of suicide bombers to date.\n\nBut there was that Davidian cult in Waco where they all 57 killed themselves. Guess it's more than that.\n\nBut given that those without religion (ie atheists) are more likely to commit suicide (whether lack of hope or just plain greater proportion of the population) - it's gonna be them to be honest.\n\nQuestion is which deaths serves more purpose?
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Please list your source. Rush Limbaugh or Bill O'Reilly are not valid sources. Only a scientific study or something similar should be trusted, so please list your source or all people should disregard your 'statistics' as made up.
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eng_Latn
| 149,981 |
Analysis of 41 suicide attempts by wrist cutting: a retrospective analysis
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Method of attempted suicide as predictor of subsequent successful suicide: national long term cohort study
|
link prediction in dynamic networks using graphlet .
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eng_Latn
| 149,991 |
who is most at risk for committing suicide
|
People of all genders, ages, and ethnicities can be at risk for suicide. But people most at risk tend to share certain characteristics. The main risk factors for suicide are:1 Depression, other mental disorders, or substance abuse disorder.eople of all genders, ages, and ethnicities can be at risk for suicide. But people most at risk tend to share certain characteristics. The main risk factors for suicide are:
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The highest suicide rate is among people who tried suicide by hanging, suffocation or strangulation. 1 A new Swedish study published yesterday, says that the method used in attempting suicide can usually predict the risk of that person actually succeeding.
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eng_Latn
| 150,023 |
Does Maximum Likelihood Estimation always yield the same result as Maximum a Posteriori with uniform prior?
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I am studying different point estimate methods and read that when using MAP vs ML estimates, when we use a "uniform prior", the estimates are identical. Can somebody explain what a "uniform" prior is and give some (simple) examples of when the MAP and ML estimators would be the same?
|
The new Top-Bar does not show reputation changes from Area 51.
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eng_Latn
| 150,891 |
what does geographic tools mean
|
Meaning and definition of geographic tools : The sources and instruments used by geographers as they study the earth's surface and human activity on the earth (e.g., representations such as atlases, globes and maps, almanacs, geographic dictionaries, statistical databases, photos and satellite images).eographic tools. The following texts are the property of their respective authors and we thank them for giving us the opportunity to share for free to students, teachers and users of the Web their texts will used only for illustrative educational and scientific purposes only.
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Geographic Information Systems (GIS): [GIS dictionary] GIS is a computer-based tool that analyzes, stores, manipulates and visualizes geographic information on a map. GIS links geographic locations on Earth with attribute information enabling users to visualize patterns, understand relationships and trends.
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eng_Latn
| 151,033 |
what is map projection
|
Commonly, a map projection is a systematic transformation of the latitudes and longitudes of locations on the surface of a sphere or an ellipsoid into locations on a plane. Map projections are necessary for creating maps. All map projections distort the surface in some fashion.Depending on the purpose of the map, some distortions are acceptable and others are not; therefore, different map projections exist in order to preserve some properties of the sphere-like body at the expense of other properties.ince any map projection is a representation of one of those surfaces on a plane, all map projections distort. Every distinct map projection distorts in a distinct way. The study of map projections is the characterization of these distortions.
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Mercator projection. The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569. It became the standard map projection for nautical purposes because of its ability to represent lines of constant course, known as rhumb lines or loxodromes, as straight segments that conserve the angles with the meridians. Although the linear scale is equal in all directions around any point, thus preserving the angles and the shapes of small objects, the Merca
|
eng_Latn
| 151,067 |
A Randomized Controlled Trial Comparing Endoscopic-Assisted Versus Open Neck Tissue Expander Placement in Reconstruction of Post-Burn Facial Scar Deformities
|
Background ::: Tissue expansion has evolved reconstruction surgery by providing a great source of additional tissue for large skin defects. Nevertheless, wide application of tissue expander reconstruction is challenging due to high complication rates and uncertainty about final outcomes. Recently, endoscopy has shown promise in reconstructive surgeries using tissue expander placement.
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We study the problem of hedging early exercise (American) options with respect to exponential utility within a general incomplete market model. This leads us to construct a duality formula involving relative entropy minimization and optimal stopping. We further consider claims with multiple exercises, and static-dynamic hedges of American claims with other European and American options. The problem is important for accurate valuation of employee stock options (ESOs), and we demonstrate this in a standard diffusion model. We find that incorporating static hedges with market-traded options induces the holder to delay exercises and increases the ESO cost to the firm.
|
eng_Latn
| 152,316 |
A study in the 1980s, in fact, found that four out of every five tender offers resulted in the target being absorbed by one firm or another.
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In a study of 1990 it has been found out that a vast majority of tender offers resulted in the target being absorbed by one firm or another.
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In a study of 2010 it has been found out that a vast majority of tender offers resulted in the target being absorbed by one firm or another.
|
eng_Latn
| 152,324 |
Investor Sophistication and Target-Date Fund Investing
|
The Pension Protection Act of 2006 identified target-date funds as an appropriate default investment for defined contribution retirement plans. Using the 2009 National Financial Capability Study, this article examines the relationship between investor sophistication and the decision to primarily invest retirement assets in target-date funds. The article finds that Americans with low investor sophistication are 22% more likely than highly sophisticated investors to make target-date funds their primary retirement saving vehicle. It is possible that the Pension Protection Act improved the economic welfare of many Americans, given that this article provides evidence that investors who stand to benefit the most from target-date fund investing are the ones who are more likely to use the product.
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This study examines the influence of ownership on ex-dividend prices and trading behaviours. Using institutional ownership as a proxy for ownership heterogeneity, allows us to investigate if tax di ...
|
eng_Latn
| 152,340 |
“Implicit Religion?”: What Might That Be?
|
The term “Implicit Religion” was (effectively) first coined in 1969, when it was adopted in preference to its predecessor, “secular religion.” The historical and ideological contexts of the concept will be sketched, before three definitions (or, better, “descriptions”) of the intended meaning are offered. Three studies, undertaken as test-cases for the utility of the concept, will be briefly reported, along with the subsequent development of study in the area of implicit religion, and its relationship with explicit religion and spirituality.
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This paper empirically analyses how investors with private material information decide in which regulatory regime, set by governments in different countries, to trade. We study put–call deviations (which indicate informed trading) for options written solely on US-listed companies and for those with dual listings/headquarter in China. We argue that informed traders actively choose the regulatory regime with the lowest level of regulatory rigorousness in order to exploit private information. We find that the informational content of put–call parity deviations is detectable for companies listed solely in the USA, but not for Chinese companies. Our evidence suggests that informed traders do not tend to exploit their private information where regulatory rigorousness is high (e.g. a high likelihood of detection and subsequent enforcement). They will instead opt to trade where regulatory rigorousness is low.
|
eng_Latn
| 152,344 |
Community-based Intervention and Integrated Management of Breast Cancer
|
Breast cancer is one of the most serious malignant tumors,which causes both physical and mental damages on women.Recently,the incidence of breast cancer worldwide is going up year by year.Breast cancer is one of a few malignant tumors which can be detected through screening and well treated at the early stage.Community is a place where people gather and carry out social activities.The comprehensive prevention and control strategy of breast cancer based on community could prevent and control factors which cause breast cancer,and could detect,diagnose,treat it at the early stage,this can greatly decrease the mortality and improve the life quality of the diseased females.This paper reviews the community-based intervention and integrated management strategies of breast cancer.
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Abstract This study contributes to the literature on socially responsible investing by examining the diversification potential of commodities, specifically oil, gold and clean energy together with the Brazilian Corporate Sustainability Index (ISE). Multivariate GARCH models are used to model volatility spillovers and conditional correlation in pairs of stocks containing ISE. Specifically, A-BEKK and A-DCC models with spillovers are estimated. The models’ results are used to compute and analyze the optimal weights and hedge ratios for stock portfolio holdings. The greatest benefit from diversification is obtained through the acquisition of gold and then OVX.
|
eng_Latn
| 152,391 |
i need to record video from webcam on the asp.net page,\nplease suggest any source code, link or third party control
|
You need to use C# or Vb.net to record from the webcam. Then you need to embed it in an ASP page using the <object> tag. I am not aware of any third party controls which do this.
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Start by downloading a 3D development kit and study the API's and tutorials that are available in them. Your choices are basically OpenGL or Direct3D. Direct3D is a Microsoft product while OpenGL is a more open standard; if you have any experience with Microsoft development tools Direct3D might be the better choice. If you prefer Linux use OpenGL.
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eng_Latn
| 153,182 |
Anomalous Current Peaks in the I-V Characteristic for Tunneling Between Two Superconductors
|
Abstract : A study was made of the two-superconductor tunneling characteristics of sandwiches of Nb-Nb Oxide-In. Observation was of not only the dc Josephson effect (a zerovoltage tunneling supercurrent), but also, at finite voltages, dc current peaks of comparable magnitude. A similar effect has been seen in junctions exhibiting dc zerovoltage currents apparently due to low critical current superconducting shorts.
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Abstract The feasibility of making analytical atomic spectrometry measurements by inductively coupled plasma-Fourier transform spectrometry (ICP-FTS) is demonstrated. Analytical working curves and detection limits are presented for Al, Ni, Fe and Ca. The effects of sample matrix composition on detection limits for analytical ICP-FTS are investigated. It is shown that a multiplex disadvantage may occur in the case of a spectral bandpass encompassing stroog emission lines of a matrix element. A “worse case” example of this problem is presented. Possible approaches to overcoming the multiplex disadvantage in analytical ICP-FTS and some ideal criteria for ICP-FTS instrumentation are presented.
|
eng_Latn
| 153,263 |
First-principles calculations of elemental crystalline boron phases under high pressure: Orthorhombic B28 and tetragonal B48
|
Phase transitions, mechanical properties and electronic structures of novel boron phases under high-pressure: A first-principles study
|
Absence of CCR8 does not impair the response to ovalbumin-induced allergic airway disease.
|
eng_Latn
| 153,273 |
An ESR and X-ray diffraction study of a first-order phase transition in CdPS3
|
Evolution of the structural transition in Mo$_{1-x}$W$_{x}$Te$_{2}$
|
Transcriptional activation of HIF-1 by a ROS-ERK axis underlies the resistance to photodynamic therapy
|
eng_Latn
| 153,314 |
Corrections to our results for optical nanofiber traps in Cesium
|
Theory of the ac Stark effect on the atomic hyperfine structure and applications to microwave atomic clocks
|
A comprehensive study on the oxidative stabilization of mesophase pitch-based tape-shaped thick fibers with oxygen
|
eng_Latn
| 153,320 |
Nuclear quadrupole interactions in solids
|
An NQR study of the crystalline structure of TNT
|
EXO0748−676 Rules out Soft Equations of State for Neutron Star Matter
|
eng_Latn
| 153,321 |
Calculated Momentum Dependence of Zhang-Rice States in Transition Metal Oxides
|
Systematic beyond-DFT study of binary transition metal oxides
|
Dimensionless Analysis of Heat, Momentum and Mass Transfer in a Pool Fire
|
eng_Latn
| 153,323 |
We have analyzed the cooperative luminescence of an ytterbium-doped silica fiber in which the ytterbium concentration is quite large, i.e., ∼ 10 21 cm −3 . The presence of a fast decaying component in a decay profile of 2 F 5/2 → 2 F 7/2 transition indicates the formation of ytterbium pairs in the fiber. The ytterbium cooperative luminescence spectrum is characterized by two peaks at 488 nm and at ∼512 nm, respectively. Overall intensity of the visible cooperative upconversion luminescence is proportional to excitation power at 980 nm. However, as fiber length increases, intensity of the shorter-wavelength side of the cooperative luminescence spectrum becomes smaller than the other portion, which results in a narrower spectral bandwidth.
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In this study, detailed investigation of photodarkening in Yb - doped aluminosilicate fibers is reported. The cooperative ::: luminescence loss influenced by photodarkening is measured simultaneously with 633 nm probe loss. The quadratic ::: dependence of photodarkening and cooperative luminescence versus dopant concentration was observed. The results ::: indicated lower cooperative luminescence loss at 513 nm than expected and provided new pieces of information to the ::: photodarkening mechanism description.
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We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero.
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eng_Latn
| 153,342 |
Objective ::: This study aims to determine whether 99mTc-MIBI scintigraphy and triple-phase contrast-enhanced magnetic resonance imaging (TCE-MRI) performed during and after preoperative chemotherapy have the power to predict final chemotherapeutic effects in patients with osteosarcoma (OS).
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Background ::: The prognosis for patients with metastatic osteosarcoma is still poor despite the development of effective adjuvant and neoadjuvant chemotherapy regimens. We have developed caffeine-potentiated chemotherapy for treatment of high-grade bone and soft tissue sarcomas based on the ability of caffeine to enhance the cytocidal effects of anticancer drugs. We report results of caffeine-potentiated chemotherapy for patients with osteosarcoma with pulmonary metastases.
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Negative thermal expansion (NTE) behaviors in the materials with giant magnetocaloric effects (MCE) have been reviewed. Attentions are mainly focused on the hexagonal Ni2In-type MM’X compounds. Other MCE materials, such as La(Fe,Si)13, RCo2, and antiperovskite compounds are also simply introduced. The novel MCE and phase-transition-type NTE materials have similar physics origin though the applications are distinct. Spin-lattice coupling plays a key role for the both effect of NTE and giant MCE. Most of the giant MCE materials show abnormal lattice expansion owing to magnetic interactions, which provides a natural platform for exploring NTE materials. We anticipate that the present review can help finding more ways to regulate phase transition and dig novel NTE materials.
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eng_Latn
| 153,405 |
Yb-doped and Yb–Al-codoped high silica glasses have been prepared by sintering nanoporous glasses. The absorption, fluorescent spectra and fluorescent lifetimes have been measured and the emission cross-section and minimum pump intensities were calculated. Codoping aluminum ions enhanced the fluorescence intensity of Yb-doped high silica glass obviously. The emission cross-sections of Yb-doped and Yb–Al-codoped high silica glasses were 0.65 and 0.82 pm 2 , respectively. The results show that Yb–Al-codoped high silica glass has better spectroscopic properties for a laser material. The study of high silica glass doped with ytterbium is helpful for its application in Yb laser systems, especially for high-power and high-repetition lasers.
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In this paper, we summarize the fundamental properties and review the latest developments in high power fiber lasers. The review is focused primarily on the most common fiber laser configurations and the associated cladding pumping issues. Special attention is placed on pump combination techniques and the parameters that affect the brightness enhancement observed in single-mode and multimode high power fiber lasers. The review includes the major limitations imposed by fiber nonlinearities and other parasitic effects, such as optical damage, transverse modal instabilities and photodarkening. Finally, the paper summarizes the power evolution in continuous-wave and pulsed ytterbium-doped fiber lasers and their impact on industrial applications.
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Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.
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eng_Latn
| 153,408 |
Identification of intruderi13/2 state in 197 Tl
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The high-spin states in 197 Tl were studied by populating them using the 197 Au(�, 4n) 197 Tl reaction at 48 MeV of beam energy. − coincidence data were taken using a combination of clover, LEPS (low energy photon spectrometer) and single crystal HPGe detectors. The polarization and DCO measurements were performed for definite spin and parity assignment of the excited states. Thei13/2 intruder state has been iden- tified for the first time in this nucleus. The total Routhian surface calculations have been performed to study the shape and deformation of 197 Tl for different configurations.
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REFERENCES1. Clemons,K.V.,L.H.Hanson,A.M.Perlman,andD.A.Stevens.1990. EfficacyofSCH39304andfluconazoleinamurinemodelofdisseminated coccidioidomycosis. Antimicrob. Agents Chemo-ther. 34:928-930.2. Kobayashi, G. S., S. J. Travis, M. G. Rinaldi, and G. Medoff.1990. In vitro and in vivo activities of SCH39304,
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eng_Latn
| 153,414 |
THE IMPLOSION PHASE OF A THETA-PINCH
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A study has been made of the implosion phase of a large theta-pinch (CARIDDI), in the presence of an initial magnetic field, but without preionization. High-speed photographic techniques and magnetic probes have been emp1oyed and the results are compared with the behavior predicted on the basis of different models of the implosion. (auth)
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Abstract The IR spectra of some halogenated symmetric derivatives of phenol in solid state are reported. The CNDO/2 method has been applied to calculate the V 2 torsional barrier; this method gives larger values than those obtained from other conventional methods. The origin of the tilt angle in phenols is discussed.
|
yue_Hant
| 153,421 |
An exposure device, a substrate processing apparatus and a lithography system, and device manufacturing method
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The exposure apparatus (10) and the substrate processing unit (50) are connected via an in-line I/F portion (110). In addition, information on the substrate carriage is communicated in between the control unit of the exposure apparatus side and the control unit of the substrate processing unit, and both units decide their next operation that contribute to improving the processing capacity related to the wafer carriage, before actually starting the operation. Therefore, the throughput of the series of wafer processing performed by the substrate processing unit and the exposure apparatus can be improved, and as a consequence, becomes possible to improve the productivity of the device. In this case, for example, information on the predicted time or the expected time when the substrate can be received or sent out is reciprocally communicated between both units.
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Abstract We study the structure and surface morphology of the 100 nm homoepitaxial LaAlO 3 films grown by pulsed laser deposition in a broad range of growth parameters. We show that there is a narrow window of growth conditions in which the stoichiometric, bulk-like structure is obtained while maintaining a 2-dimensional (2D) layer-by-layer growth mode. In our system, these optimum growth conditions are 100 mTorr background pressure with laser energy density 1.5–2 J/cm 2 . The sensitivity to growth conditions of the stoichiometry and structure of LaAlO 3 films can have a crucial role in the 2-D electron gas formed at the LaAlO 3 /SrTiO 3 interface.
|
eng_Latn
| 153,438 |
[Invasive diagnostic imaging of coronary atherosclerosis].
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Invasive diagnostic imaging technique of coronary atherosclerosis has rapidly developed. For example, intravascular ultrasound(IVUS) is recognized as an essential device for percutaneous coronary intervention to evaluate the vessel wall, vascular lumen and coronary plaque morphologies because of its accuracy for quantitative analysis capability. Recently new imaging modalities such as radio-frequency signal analysis, elastography and contrast harmonic echography have been developed for the evaluation of histological characteristics. Also, optical coherence tomography(OCT), which provides approximately ten-times higher-resolutional cross-section images of the coronary arterial wall in comparison with IVUS, became available in clinical setting. In this article, we review the latest progress of the invasive diagnostic imaging of coronary atherosclerosis.
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We present a computer simulation study of thin crystalline multilayers constructed from two FCC solids with differing lattice constants and binding energies. Both materials are described by Lennard-Jones interatomic potentials and initially have the same orientation and coherent interfaces. We have studied systems in which interfaces are perpendicular to the common [100] and [111] directions, respectively. A novel technique for analyzing local atomic ordering, Common Neighbor Analysis, is used to identify structural characteristics in these systems. We have found several structural changes in the layers of smaller atoms, including an FCC to HCP transition. In a system with (111) texture, a coherent interface to incoherent interface transformation is observed. Calculations of elastic constants of these multilayer structures show that elastic anomalies are associated with the structural variations.
|
eng_Latn
| 153,479 |
Structure and Properties of Strained Crystalline Multilayers
|
We present a computer simulation study of thin crystalline multilayers constructed from two FCC solids with differing lattice constants and binding energies. Both materials are described by Lennard-Jones interatomic potentials and initially have the same orientation and coherent interfaces. We have studied systems in which interfaces are perpendicular to the common [100] and [111] directions, respectively. A novel technique for analyzing local atomic ordering, Common Neighbor Analysis, is used to identify structural characteristics in these systems. We have found several structural changes in the layers of smaller atoms, including an FCC to HCP transition. In a system with (111) texture, a coherent interface to incoherent interface transformation is observed. Calculations of elastic constants of these multilayer structures show that elastic anomalies are associated with the structural variations.
|
The effect of compressibility on the stability of plasma jets with boundaries (tangential discontinuity surfaces) of different configurations is studied. It is shown that, depending on the relationship between the MHD parameters of the jet and the surrounding medium, the compressibility may have a stabilizing or a destabilizing effect. It is also shown that, under certain conditions, the compressibility effect depends on the perturbation wavelength.
|
eng_Latn
| 153,486 |
On the Possibility of the Precise Test of Interatomic Interaction Potentials Using the Effect of Anomalous Light-Induced Drift
|
The spectral features of the velocity of light-induced drift (LID) of lithium atoms in a neon buffer gas have been theoretically studied using four known ab initio calculated interatomic interaction potentials for the Li–Ne system of colliding particles. The calculations with each of these four potentials predict a strong temperature dependence of the spectral shape of the LID signal of Li atoms in the Ne atmosphere in various temperature intervals. The results allow the high-precision test of the interatomic interaction potentials in experiments on anomalous LID.
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Abstract A simple pseudopotential (PP) model developed by us earlier was used here to study lattice dynamics and lattice statics of copper. Comparison of the accuracy attainable in different model calculations of the off-symmetry phonon frequencies was made, and the PP model appeared to be at least as accurate as the embedded atom method (EAM). We suggest that calculation of further lattice properties is necessary to evaluate any microscopic model properly. As an example we give a brief review of the PP model application in the lattice dynamics of alloys including the calculation of frequency shifts in different palladium-based alloys.
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eng_Latn
| 153,489 |
Collective light forces on atoms in resonators
|
We study resonator-induced light forces arising from cooperative atom–light interaction. For such collective processes, the force on the sample can be orders of magnitude larger than the sum of conventional light forces on individual atoms. Since resonator-induced light forces can be dissipative even when the incident light is far detuned from atomic transitions, they may be applicable to target particles with a complex level structure. (Some figures in this article are in colour only in the electronic version)
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Abstract A new repulsive term in the ionic interaction potential ψ ( r ) = Ar −n e − r / gl , is suggested and the three unknown parameters A , λ and n are evaluated. Lattice energies of alkali halide crystals are calculated using this form. The results agree fairly well with the experimental values.
|
eng_Latn
| 153,494 |
Magnetic and Transport Properties of Tm2Co7B3 Compound
|
Magnetic and transport properties of Tm2Co7B3 compound have been studied. This compound crystallizes in the hexagonal Ce2Co7B3 type structure. The coercivity (Hc) of the compound was determined from hysteresis measurements in fields up to 4 T. The temperature dependence of coercivity has been explained by a thermally activated process of domain wall motion. The resistivity at low temperatures shows a T2 dependence. At higher temperatures the resistivity is not a linear function of temperature, which indicates an electron-phonon interaction in the presence of a small s-d scattering.
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Abstract This study was undertaken to investigate the interaction of aqueous protactinium with various monobasic acids at an ionic strength and acidity of 1·00. This present work adds to the existing information on the anionic complexing of protactinium which was collected at an ionic strength of 3 and an acidity of 1–3 N. The solvent extraction method involves the measurement of the distribution of protactinium (Pa-233) between various aqueous solutions and a benzene phase containing the bidentate chelating agent, thenoyltrifluoroacetone (TTA).
|
eng_Latn
| 153,501 |
ESR study of the I0 atom in HIO3
|
A description is given of a paramagnetic center produced in single crystals of iodic acid, HIO3, when irradiated at room temperature with either x or γ rays. This center is interpreted as neutral iodine atoms, I0, trapped in the crystal. ESR studies indicate four different trapping sites that are related by the crystal symmetry. The g values, the hfs tensor, and the quadrupole interaction tensor are presented and discussed.
|
Abstract This paper presents a theoretical model for the behavior of solid solutions of group III and V impurities in silicon. The impurities are considered as weak electrolytes dissolved in an ionizing medium. The Fermi level, the activity coefficient and the dissociation equilibrium constants for the dopants are calculated, using Fermi-Dirac statistics, as functions of temperature and doping level. The solid solutions obey Henry's law at very low concentrations and exhibit positive deviations as the concentration is increased. Ionization of impurities or dopants as a function of their concentrations are discussed.
|
eng_Latn
| 153,530 |
In this paper, we claim that children are in danger of social exclusion both in Italy and in Spain since social distance between age groups has increased over time. We use as a measure of social exclusion an index of polarization since neither the Lorenz-consistent inequality indices nor the measures of poverty are suited to this task. We look for the causes of this phenomenon by grouping children according to some characteristics of the household to which they belong. Our last aim is to measure the effects that government intervention has had on this phenomenon. We focus on public provisions of education and health care. One of the main findings is that public intervention was not at all successful in fighting this phenomenon, since welfare state institutions of the two countries were designed to combat risks associated with old age and not with childhood.
|
We introduce an extension of the Esteban and Ray [Econometrica, 62:819–851 1994] measure of polarization that can be applied to density functions. As a by-product we also derive the Wolfson [Am. Econ. Rev., 84:353–358 1994] measure as a special case. This derivation has the virtue of casting both measures in the context of a (statistically) unified framework. We study the polarization of the distribution of household income for five OECD countries (LIS database): US, UK, Canada, Germany and Sweden.
|
We report nearly complete preservation of “spin memory” between optical absorption and photoluminescence under excitation >0.2 eV above the band gap in nanometer GaSe slabs.
|
eng_Latn
| 153,536 |
Electronic Configurations of Superheavy Elements
|
We study electronic configurations of superheavy elements around one of islands of stabilities, from element 121 to 131, using the relativistic density functional theory with quantum electrodynamical corrections (Breit interaction) by MacDonald and Vosko. It is found that these corrections are important for studying electronic configurations of superheavy elements, and that g electrons in the atom first appear from element 126. We draw a table for the electronic configuration of elements including these superheavy elements.
|
The published cross sections of 232Th, 233U, 234U, 235U, 236U, 237Np, 238U, 239Pu, 240Pu, 241Pu, and 242Pu from 1 keV to 10 MeV have been carefully studied to select best cross sections for fast re...
|
eng_Latn
| 153,542 |
Ambient dependence of visible emissions in SrTiO3
|
Abstract We investigated the visible emission property of SrTiO3 (STO) single crystals with high temperature annealing in some ambient conditions. We found that the green emission in STO, which should be associated with intermediate states originating from functional ionic defects inside the samples, such as cation/oxygen vacancies, showed strong ambient dependence. While high temperature annealing in the O2 atmosphere suppressed the intensity of visible emission, annealing in an O2-free atmosphere, such as N2 or H2, increased it. The broad visible emissions were fitted with three sub-modes, whose intensities showed different evolutions with respect to the ambient condition. Our study demonstrated the systematic development of defect states with the amount of the oxygen vacancies in STO.
|
Abstract Radicals generated in autoxidized methyl oleate, linoleate and linolenate have been detected by ESR and ENDOR using the spin trap 2-methyl-2-nitrosopropane, this being the first report of ENDOR spectra on such systems.
|
eng_Latn
| 153,559 |
5d electron delocalization of Ce3+ and Pr3+ in Y2SiO5 and Lu2SiO5
|
The energies of the 5d excited states of Ce3+ and Pr3+ impurities relative to the conduction band of the insulators Y2SiO5 and Lu2SiO5 were investigated through a temperature and spectrally resolved photoconductivity study. The effective ionization barrier of Pr3+ from the 5d state to the conduction band is found to be 0.15 eV smaller than that of Ce3+ in both Y2SiO5 and Lu2SiO5. The difference is explained by a model, represented by rate equations, that takes into account interconfigurational 4f5d→4f2 relaxation for Pr3+, a process that is absent for Ce3+.
|
The effects of rare earth lanthanum on sintering process and structure of MoSi 2 have been investigated by x ray diffraction and SEM.The results show that La 2O 3 is the unigue form of La in the sintered MoSi 2 bars.The sintering process is activated by the addition of La,and the relative density of sintered MoSi 2 is the biggest when the content of La reaches 0.8wt.% ?
|
eng_Latn
| 153,563 |
Surface-specific visible light luminescence from composite metal oxide nanocrystals
|
Low-coordinated surface elements on metal oxide nanoparticles represent the basis for a new concept of luminescent nanoparticles made of abundant, non-toxic, and thermally stable materials. This combined experimental and theoretical study describes the generation and stability of Ba-doped MgO nanoparticle surfaces and their optical absorption and luminescence dependence on Ba loading. It is demonstrated that the vapor phase growth process employed here represents a particularly robust synthesis approach for particle powders with reproducibly adjustable photoluminescence emission properties in the range between blue and yellow light. Moreover, this in-depth characterization also provides an understanding of the electronic and optical characteristics of this nanoparticulate material with a so far unnoticed potential for solid-state light applications that are based on down conversion of UV light.
|
1. ::: ::: Formation of chemiluminescence emitters during the liquid-phase oxidation of olefins by molecular oxygen can proceed through peroxide radical disproportionation or through the breakdown of intermediate molecular oxidation products. ::: ::: ::: ::: ::: 2. ::: ::: A study of the kinetics of these processes has shown that the second of these two possibilities is realized through dioxetanes and polymeric peroxides formed by chain reactions in the oxidation process.
|
eng_Latn
| 153,564 |
An Empirical Ultraviolet Iron Spectrum Template Applicable to Active Galaxies
|
Iron emission is often a severe contaminant in optical-ultra- violet spectra of active galaxies. Its presence complicates emission line studies. A viable solution, already successfully applied at optical wave- lengths, is to use an empirical iron emission template. We have generated Fe ii and Fe iii templates for ultraviolet active galaxy spectra based on HST archival 1100-3100u spectra of IZw1. Their application allows fitting and subtraction of the iron emission in active galaxy spectra. This work has shown that in particular Ciii) �1909 can be heavily contam- inated by other line emission, including iron transitions. Details of the data processing, generation, and use of the templates, are given by Vester- gaard & Wilkes (2001).
|
Using ultrafast optical-pump terahertz-probe spectroscopy, we study the THz dynamics and electronic cooling in few-layer epitaxial and CVD graphene; a microscopic theory of carrier-carrier and carrier-phonon interactions accounts quantitatively for the observed dynamics.
|
eng_Latn
| 153,578 |
Width of Debye-Scherrer lines for finite spectral width of primary beam
|
"The width of a Debye-Scherrer line under the combined influence of spectral width of the primary radiation and of the small size of the crystal grains is calculated, omitting all geometric causes of line broadening. The shape of the crystals is assumed spherical, with the same diameter for all grains. The orientation is assumed to be random, with negligible statistical fluctuations" (p. 1).
|
Abstract In the present study we calculated the electronic structure of the valence skipping compound SnF 3 and BaBiO 3 from first-principles. We confirmed that the charge-density-wave (CDW) is formed in SnF 3 , and the Sn atoms in two crystallographic different sites take the valence Sn 2+ and Sn 4+ . Structure optimization study reveals that this CDW is stable, though the atomic position is slightly different from the experimental data. This behavior is in contrast with the case of BaBiO 3 , where the structure optimization leads to the uniform state, which means that two Bi sites are equivalent. The CDW state is hard in SnF 3 , which means that the CDW gap is large enough and it is difficult to melt this CDW order.
|
eng_Latn
| 153,580 |
Discovery of A New Al Species in Hydrogen Reactions of NaAlH4
|
The NaAlH4 system remains the archetype of hydrogen storage solids. However, the detailed mechanisms of the hydrogen reactions of NaAlH4 remain unknown. We report 27Al in situ nuclear magnetic resonance (NMR) spectroscopic data revealing an Al-bearing mobile species that could provide the large scale metal-atom transport needed for rehydriding. This new species forms under reaction conditions but can be captured at ambient temperature using excess H2 pressure. The NMR measurements demonstrate that the species is highly mobile (at 20 °C) and carries both Al and H atoms. On the basis of the 27Al shift (close to NaAlH4) and the disorder evident in X-ray diffraction, the species is identified as highly defective NaAlH4, likely having a large AlH3 vacancy concentration.
|
Background and aims ::: Arabidopsis halleri is a pseudometallophyte plant model hyperaccumulating zinc and cadmium. This study investigates which abiotic parameters may cause phenotypic divergence among accessions for hyperaccumulation traits.
|
eng_Latn
| 153,585 |
Annealing Effects on Bi Doped Se-Te System
|
Annealing reduces the randomness and effects the adjustment of relative position between the layers. The annealing may provide a deeper insight into the mechanism of disorder and defect formation in the amorphous chalcogenides. A lot of research has been done on the study of the effect of thermal annealing on the optical properties of the semiconducting chalcogenide glasses, which has not been amply supported by corresponding experimental data on the effect of thermal annealing on the electrical properties. So, the effect of thermal annealing on the electrical properties and optical properties of Se–Te-Bi (2≤x≤8) chalcogenide glasses has been briefly discussed in the present paper. The annealing in the present study has been done below glass transition temperature.
|
Abstract Two new series of compounds exhibiting nematic and smectic reentrant mesophases are presented here; the first one is 4-n-alkoxy benzoyloxybenzylidene 4'-cyanoaniline series the second one the 1-(4-n-alkylbenzoyloxyphenyl) 2-(4'-cyanophenyl) ethane series. Isobaric binary phase diagrams are plotted for each compound by means of the contact method and the mesophases so identified.
|
eng_Latn
| 153,587 |
Bulk and surface sensitive high-resolution photoemission study of Mott–Hubbard systems SrVO3 and CaVO3
|
We study the electronic structure of Mott-Hubbard systems SrVO 3 and CaVO 3 with bulk and surface sensitive high-resolution photoemission spectroscopy using low-energy photons (hv = 7-21 eV), including a VUV laser. A clear suppression of the density of states within ∼0.2eV of the Fermi level (E F ) is found. The coherent band in SrVO 3 and CaVO 3 is shown to consist of surface and bulk-derived features. The results indicate that the stronger distortion on the surface of CaVO 3 compared to SrVO 3 is directly reflected in the coherent DOS at E F , consistent with recent theory.
|
We consider the cross area of the PP_ and PSV_wave window as the best window for joint PP_ and PSV_wave acquisition in VTI media. Within the effective window, the PP_ and PSV_wave's raypathes and phase angles at all reflection points are calculated, and the reflection (or transmission) coefficients' ratios of PSV- to PP_wave solved from Zoeppritz equations are defined as the controlling factor G. Then we use G values as the main controlling parameters of joint PP_ and PSV_wave acquisition design in VTI media, determine the best receiving window of detectors by analyzing G values, and derive the method of optimizing the receiving window for acquisition of multi_component converted seismic data in VTI media.
|
eng_Latn
| 153,601 |
Thermal Conductivity and Modification The Formula of The Hole(Electron) - Phonon Scattering: Application to Antimony at Low Temperature
|
Using Callaway’s Model, thermal conductivity o f antimony in the temperature range between (0.4-2. 4)K was calculated. Specialized present study to modif ication the formula of hole(electron)-phonon scatte ring relaxation rate by using phonon wave vector which i s located in the formula of the hole(electron)-phon on relaxation rate, instead of Debye dispersion relati on ( υ ω / = q ). In addition to scattering the phonons by holes(electrons) ,the boundary scattering, point de fects and three-phonon scattering (normal & umklapp) were taken into account to find the total relaxati on rate. Good agreement between theory and experiment is obtained in temperature rang (0.4-2.4)K.
|
The influences of Co-Cr-Pt-Ta sputtering-target microstructure on C/Co-Cr-Pt-Ta/Cr/glass films were investigated. The sputtering target consisted of a Co solid solution matrix and Ta- and Pt-rich precipitates. Annealing and rolling can increase the Pt and Ta content of the matrix. When the film is made by using an annealed and rolled target, its Hc and S* become large and the Hc distribution becomes small. These changes are related to the film composition. Simple calculations related to the ejection angular distribution of sputtered particles and yields suggest that about compositional changes in films are brought by the differences in the target microstructures.
|
eng_Latn
| 153,604 |
Tails of near-edges x-ray absorption spectra as a fingerprint of magnetic and structural phase transitions. Application to metallic 3d ultra thin films
|
Tails of x-ray absorption near-edge structure (XANES)/x-ray magnetic circular dichroism spectroscopy (XMCD) spectra (50–100 eV above the edges) are characterized by the beginning of the extended x-ray absorption fine-structure/magnetic extended x-ray absorption fine-structure oscillations. We present a systematic study of these tails for three different thin films: Fe and Fe0.65Ni0.35 on stepped Cu(111) and Fe/ZnSe(001). The dependance of the detected oscillations on the film thickness leads us to conclude that XANES/XMCD tails are a useful in situ probe of the structural and magnetic phase of the sample.
|
Abstract A selective method for the detection of osmium by flame atomic emission spectrometry is described. The method is based on extracting osmium tetroxide into MIBK, at pH 2.1–9.5, and aspirating the extract into a nitrous oxide-acetylene flame. By this procedure the effect of common interferences in atomic emission spectrometric determination of osmium has been eliminated or minimized.
|
eng_Latn
| 153,618 |
Correlations between Micro- and Nanostructures and Magnetic Transitions in the Ru-Doped Sm0.2Ca0.8MnO3 Manganites
|
Abstract The electron microscopy study of the Ru-doped manganites Sm 0.2 Ca 0.8 Mn 1− x Ru x O 3 (0≤ x ≤0.10) shows that the magnetic properties of these materials are strongly correlated to their microstructure. Charge ordering induced by Mn-site doping is shown for the first time, in contrast to what is generally observed. It is shown that Ru-doping paradoxically favors the simultaneous development of ferromagnetic orthorhombic domains and charge-ordered antiferromagnetic domains at low temperature, starting from a monophasic orthorhombic paramagnetic sample at room temperature. This structural phase separation phenomenon at low temperature is explained in terms of two antagonist effects introduced by Ru 5+ substitution: ferromagnetic superexchange interactions and Mn valency.
|
We have obtained sorbents modified by the cationic SAS based on hydromica and kaolinite—layer silicates with a rigid structural cell. We have studied structure—sorption properties of initial and developed materials. It has been shown that modification results in a sharp decrease of hydrophilicity of minerals, enhancement of their affinity to the molecules of anionic and nonionogenic SAS. We have noted a substantial increase of sorption capacity of modified minerals with respect to nonionogenic SAS, which is explained by the formation on the surface of the sorbent of bulk associates from the molecules of cationic and nonionogenic SAS.
|
eng_Latn
| 153,662 |
Electronic structure of SnF3: An example of valence skipper which forms charge density wave
|
Abstract In the present study we calculated the electronic structure of the valence skipping compound SnF 3 and BaBiO 3 from first-principles. We confirmed that the charge-density-wave (CDW) is formed in SnF 3 , and the Sn atoms in two crystallographic different sites take the valence Sn 2+ and Sn 4+ . Structure optimization study reveals that this CDW is stable, though the atomic position is slightly different from the experimental data. This behavior is in contrast with the case of BaBiO 3 , where the structure optimization leads to the uniform state, which means that two Bi sites are equivalent. The CDW state is hard in SnF 3 , which means that the CDW gap is large enough and it is difficult to melt this CDW order.
|
Abstract X-ray photoelectron spectroscopy was applied to analyze the surface composition of sodium dihydrogenphosphate/ferric oxide systems and montmorillonite which were chosen as model sediment (soil) systems. Striking differences in the photoelectron emission intensities for certain elements were observed for samples of differing preparations and where the bulk composition of elements were retained. Adsorbed phosphate ion was persistent on ferric oxide surface against repeated leaching by water where sodium ion was lost completely from the surface.
|
eng_Latn
| 153,680 |
Precipitate formation in carbon-doped base of InGaP/GaAs heterojunction bipolar transistors grown by low-pressure metal organic chemical vapor deposition
|
The effect of intermediate temperature annealing on the carbon-doped base region of InGaP/GaAs heterojunction bipolar transistors (HBTs) was studied. This work shows that after annealing at only 600 °C a sample doped at 5.5×1019 cm−3 displays carbon precipitation. InGaP/GaAs HBT structures were grown for the annealing study. Hall measurements were used to measure hole concentration. Atomic force microscopy was employed to identify carbon precipitation. The annealing process not only removes hydrogen from the base but also creates carbon precipitates. The dc current gain measurements imply that the carbon precipitates increase base recombination. These results are very important in the growth and postgrowth annealing of high gain HBTs.
|
Abstract The first-principles calculations have been performed to study the structural, elastic, mechanical and electronic properties of cubic OsTM (TM = Ti, Zr, and Hf) and hexagonal TMOs 2 compounds. The calculated structural parameters are in good agreement with the available experimental data. To the best of our knowledge, the elastic constants of OsTM and TMOs 2 compounds have been obtained for the first time. The calculated elastic and mechanical properties show that these compounds have no superhard character. These compounds are mechanically stable and behave in ductile manner. The electronic band structures and densities of states of OsTM and TMOs 2 compounds have been analysed. OsTM has a mixture of covalent-ionic and metallic character, and TMOs 2 has strong metallic nature.
|
eng_Latn
| 153,688 |
Pattern formation during directional solidification of bicrystals
|
An experimental study of pattern formation processes during directional solidification of bicrystals was performed in a wide interval of solidification parameters. The main regularities of grain boundary behaviour in dependence on the mutual orientation of the crystals in the bicrystal and the orientation of the bicrystal as a whole relative to the thermal gradient direction were ascertained.
|
PbO-B 2 O 3 glasses were prepared by traditional melting method. XRD and optical spectra measurements were done ::: to check properties. Second-harmonic generation was observed in the glasses induced by thermal treatment and ::: thermally poling process, respectively. But second-harmonic generation intensity was normally larger for the ::: later, and it increased with increasing PbO content, poling voltage, temperature and time. The mechanism of ::: second-harmonic generation in the PbO-B 2 O 3 glasses was also discussed. A promising material for all-optical ::: switching devices is expected.
|
eng_Latn
| 153,690 |
Regioselectivity in lithium, sodium and potassium chloroallyl systems. An Ab initio-theoretical and experimental study
|
Abstract The computed structural and electronic features of the title compounds describe the sodium and potassium systems as more inclined to CCl 2 regioselectivity with carbonyl electrophiles than the analogous lithium compounds. Some experimental results confirm this expectation.
|
For many years it has been assumed that nonradiative recombination plays a dominant role in determining the high temperature performance of long wavelength laser diodes. We show that this view is inconsistent with the measured temperature dependence of spontaneous emission from light emitting diodes. We conclude that net gain primarily determines the temperature sensitivity of threshold in long wavelength semiconductor lasers.
|
eng_Latn
| 153,718 |
Data Stream Clustering Algorithm Based on Neighborhood Covering
|
Data stream clustering analysis is one of the key techniques in data stream mining.To meet the requirement of evolution and high-speed processing,a data stream clustering algorithm based on Neighborhood Covering is proposed,namely NCStream.By building Neighborhood Covering model,the proposed algorithm for the evolving procedure of data stream is defined and analyzed at length,including the adjustment,creation,deletion and mergence of covering cluster,and simultaneously maintain the cluster feature online.Compared with the similar clustering method,NCStream has no assignment in the number of cluster in advance,which avoids the disadvantage of clustering result due to parameter setting.Moreover,NCStream benefits the establishment of spatial index.Hence,the evolution of data stream is more effectively reflected.The experimental results on real wireless monitor data sets demonstrate that NCStream is of better performance in clustering shape,quality and processing time.
|
We present a computer simulation study of thin crystalline multilayers constructed from two FCC solids with differing lattice constants and binding energies. Both materials are described by Lennard-Jones interatomic potentials and initially have the same orientation and coherent interfaces. We have studied systems in which interfaces are perpendicular to the common [100] and [111] directions, respectively. A novel technique for analyzing local atomic ordering, Common Neighbor Analysis, is used to identify structural characteristics in these systems. We have found several structural changes in the layers of smaller atoms, including an FCC to HCP transition. In a system with (111) texture, a coherent interface to incoherent interface transformation is observed. Calculations of elastic constants of these multilayer structures show that elastic anomalies are associated with the structural variations.
|
kor_Hang
| 153,732 |
Study of N—H Frequencies in Some Metal-Halide Chelates of O-Phenylenediamine
|
The infrared studies in connection with the bidentate complexes of o-phenylenediamine were directed toward the study of N–H vibrations. Similar investigations have been undertaken with regard to the N–H stretching and bending vibrations of aniline and α-naphthylamine. Deuteration studies were made. As a result of these studies and by comparison with the assignment of frequencies made in the above mentioned investigations, stretching, scissors, and wagging frequencies are assigned to the chelates of o-phenylenediamine. The absorption in the region of ND2 wagging vibrations of the deuterated palladium complex failed to show splitting and therefore coupling with the C–H out-of-plane vibrations, as was evident in the spectra of the corresponding complexes of α-napthylamine and aniline.
|
An experimental investigation of impact ionization by electroluminescence in composite channel lattice-matched InAlAs/InGaAs/InP/InAlAs high electron mobility transistors (HEMTs) is presented. In these transistors, an InP subchannel layer is added to the InGaAs channel. Radiative recombinations at two different energies are observed, characteristic of recombinations in the InGaAs channel and at the InP/AlInAs interface. The bias-dependent electroluminescence line intensities are used to analyze the role played by the InP layer for relaxing the hot carriers. A large fraction of electrons in the InGaAs channel of the composite HEMT is transferred to the InP subchannel in the high field gate-drain region.
|
eng_Latn
| 153,735 |
Electron energy distribution and transport coefficients in magnetically confined CO2 lasers
|
The effects of magnetic fields on electrons have been considered using the Boltzmann transport equation for a novel laser system-a magnetically confined gas laser. The equation has been solved numerically for CO2 lasers, as an example in the study. Curves are presented of electron energy distributions and transport coefficients under the influence of a transverse magnetic field. An idea for improving gas laser efficiency has also been discussed.
|
Abstract EPR investigations on light-emitting Manganese centres in device-near ZnS or ZnSe thin-film layers were done. Mn 2+ centres were detected in both basic modifications of ZnS. Assertion on the crystallinity could be made. The efficiency of EPR is demonstrated by some examples.
|
eng_Latn
| 153,762 |
Optical properties of solution phase deposited (As2S3)100-xGex chalcogenide thin films
|
Solution phase driven deposition methods such as casting or micro-molding are not much explored in amorphous chalcogenide glasses for Infrared (IR) optical component fabrication, which could be a simple and low cost alternative unlike conventional thin film deposition techniques such as vapor phase deposition methods. To use such deposition technique optimization of solution preparation conditions in order to retain the optical properties of the solute is the key factor. In this present study, we report on the dissolution kinematics of (As2S3)100-xGex (x=0, 20, 40) glasses in ethylenediamine solvent. Dynamic Light Scattering (DLS) result indicates particle size of the solution is <30nm, which is an essential requirement for the fabrication of low surface roughness films in these materials. Optical properties of the solution are discussed.
|
The band profiles in InGaAsP single quantum well are investigated using the model solid theory under considering of the effect of strain.The band lineups for electrons and holes are tuned by changing Ga concentration x and As concentration y in the well on condition that the concentrations in the barrier are fixed.The results indicate that the variety of concentration influences evidently the band lineups,resulting in type-Ⅰ to type-Ⅱ transformation.When the well is multilayer,parabolic potential well can expediently carry out by controlling the compositions.
|
eng_Latn
| 153,771 |
Low dose TL characteristics of Nigerian fluorite
|
Abstract Nigerian fluorite has been characterized by β-irradiation for thermoluminescence in the low dose range (40 μGy–72 mGy). The glow curves exhibit 3 peaks recorded at 111 ± 11 °C, 196 ± 2 °C and 282 ± 4 °C at the heating rate of 5 °C s −1 . The two high temperature peaks exhibit a linear response over the range of study. The minimum detectable dose for each of the observed peaks has been determined and the lowest detection limit of fluorite was also determined. A complex fading pattern was observed for the phosphor and the possible source of the TL buildup has been discussed.
|
With the increase of frequencies in microwave communications lithium ferrite single crystals attract growing interest.
|
eng_Latn
| 153,797 |
Phosphorescence of s-triazine vapor
|
Abstract The phosphorescence of s -triazine vapor has been observed by means of time-resolved emission spectroscopy. The phosphorescence spectrum is diffuse with a faint vibronic structure in the shorter-wavelength region. The phosphorescence quantum yield is 3.0 × 10 −5 for excitation at the 6 2 0 absorption band of the S 0 → S 1 transition, and the lifetime is 7.1 × 10 −6 s.
|
The study of the structural transition in nanoscale materials is of particular interest for their potential applications. In the present study, we have observed a lower temperature T = 250??C for the phase transition from the sphalerite structure to the wurtzite structure in ZnS nanoparticles under a pressure of 1?GPa, as compared to those, T = 400 and 1020??C, for ZnS nanoparticles and bulk ZnS under normal pressure, respectively. The reduced transition temperature is attributed to the applied pressure leading to tight particle?particle contacts, which change the surface (or interfacial) environment of the nanoparticles and thus their surface (or interfacial) energy.
|
eng_Latn
| 153,803 |
Updated ILAE Review of Antiepileptic Drug Efficacy
|
The International League Against Epilepsy (ILAE) Subcommission on AED Guidelines reviewed the literature from July 2005 to March 2012 and combined results with previous analysis (2006) to provide a comprehensive update of level of AED efficacy as initial monotherapy with newly diagnosed or untreated epilepsy.
|
Abstract A study of the effect of alkane gases on the atomic fluorescence signals of some refractory elements has been made, with a low power inductively coupled plasma (ICP) as the atomiser, and a high power ICP as the source. Detection limits are, for some elements, inferior to those obtainable by ICP-Atomic Emission Spectrometry (ICP-AES). However, an improvement by a factor of two has been obtained for tungsten by using ethanolic solutions instead of adding traces of hydrocarbon gases.
|
yue_Hant
| 153,813 |
Short-Pulse X-Ray Optics: Effects and Considerations
|
Newer synchrotron radiation sources should provide sub-picosecond x-ray pulse durations. Various optics considerations for such short pulses will be addressed, including temporal broadening effects, pulse length preservation, and possibilities of further compression.
|
we report a low frequency mechanical relaxation study of molecular motions near and below glass transition in side chain liquid crystal polymers (SCLCP) in the cholesteric state. The SCLCP was a blend of crosslinked and uncrosslinked materials. Different compositions were studied. These materials exhibit low temperature relaxation processes and a main relaxation connected to the glass transition. Localiscd motions arc responsible for the low temperature processes while the main relaxation exhibits cooperative features and is sensitive to the amount of crosslinked fraction. The relaxation blue in the glass transition range when plotted against normalised reciprocal temperature shows that the molecular motions display a fragile character in agreement with the highly cooperative feature and strong physical aging effects. These observations are discussed in the frame of correlated motions involved in the liquid glass transition.
|
eng_Latn
| 153,815 |
Electronic structure of NH+: An ab initio study
|
We report ab initio self-consistent field MRSD-CI electronic structure calculations of the NH+ cation. A basis set of DZ + POL quality augmented with Rydberg and bond functions was employed together with an extensive treatment of electron correlation. More than 50 electronic states of NH+ are reported, including doublets, quartets, and sextets. Leading configurations, vertical ionization energies of NH, vertical excitation energies of NH+, and potential energy curves are reported. Spectroscopic properties calculated for the known bound electronic states of NH+ are found in good agreement with experiment. © 2004 Wiley Periodicals, Inc. Int J Quantum Chem, 2005
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Abstract The syntheses, magnetic properties, and reactions with nitrogen donors of a number of related A2[Fe2CI6 salts (A = H-TMPP, PPh4, Et4N, AsPh4, ppn) ([H-TMPP Cl = [H-P(C6H2(OMe3)3 Cl) as well as the neutral cluster Fe4CI8(THF)6 are discussed.
|
eng_Latn
| 153,824 |
Superresolution of Chirp Signals and Its Applications to Three Dimensional Imaging of Maneuvering Targets
|
For a maneuvering target, the Doppler of scatterers take the form of LFM signals after movement compensation. Superresolution methods are based on the models of both the signal and the noise. In this paper, we extend the Relax algorithm to the case of LFM signals and apply it to monopulse three dimensional imaging. Simulation results shows that the images thus formed are superior to those formed by the traditional dechirping method.
|
We present a computer simulation study of thin crystalline multilayers constructed from two FCC solids with differing lattice constants and binding energies. Both materials are described by Lennard-Jones interatomic potentials and initially have the same orientation and coherent interfaces. We have studied systems in which interfaces are perpendicular to the common [100] and [111] directions, respectively. A novel technique for analyzing local atomic ordering, Common Neighbor Analysis, is used to identify structural characteristics in these systems. We have found several structural changes in the layers of smaller atoms, including an FCC to HCP transition. In a system with (111) texture, a coherent interface to incoherent interface transformation is observed. Calculations of elastic constants of these multilayer structures show that elastic anomalies are associated with the structural variations.
|
eng_Latn
| 153,826 |
Local coexistence of VO2 phases revealed by deep data analysis
|
We report a synergistic approach of micro-Raman spectroscopic mapping and deep data analysis to study the distribution of crystallographic phases and ferroelastic domains in a defected Al-doped VO2 microcrystal. Bayesian linear unmixing revealed an uneven distribution of the T phase, which is stabilized by the surface defects and uneven local doping that went undetectable by other classical analysis techniques such as PCA and SIMPLISMA. This work demonstrates the impact of information recovery via statistical analysis and full mapping in spectroscopic studies of vanadium dioxide systems, which is commonly substituted by averaging or single point-probing approaches, both of which suffer from information misinterpretation due to low resolving power.
|
The Lubeck Retreat, Collaborative Research Centre SFB 574, Volatiles and Fluids in Subduction Zones: Climate Feedback and Trigger Mechanisms for Natural Disasters. Final colloquium of SFB 574, 23-25 May 2012, Lubeck
|
eng_Latn
| 153,844 |
Expanded fluid mercury in the metal-nonmetal transition range. An ab-initio MD study
|
Fluid Hg undergoes a metal-nonmetal (M-NM) transition when is expanded from the triple point towards a density of around 9 gr/cm3 at high temperature and high pressure. To investigate the related changes in the static and dynamic properties, we have performed ab-initio molecular dynamics simulations for some states close to the M-NM transition range. The calculated static and dynamic structure factors show a good agreement with the available experimental data. It is found that the volume expansion reduces the number of nearest neighbors at the expense of the inner ones. The dispersion relation exhibits a positive dispersion which is not so marked as that deduced from experimental data. The total electronic density of states shows the appearance of a band gap at a density somewhat smaller than 9 gr/cm3.
|
The experimental bias dependence of the power output spectrum from various types of HEMT at large signal excitation was studied and compared with predicted values obtained from a newly proposed HEMT model. Good agreement between simulated and measured power spectrum up to at least the fourth harmonic was demonstrated for HEMT devices from different manufacturers. An extension of the existing model is also proposed, which models the V/sub ds/ dependence of the transconductance peak in the region where the drain current is unsaturated and at negative drain voltage. >
|
eng_Latn
| 153,848 |
Planar and three-dimensional precision estimation method of low earth orbit satellite
|
The invention belongs to the field of photogrammetry and computer simulation, in particular relates to a planar and three-dimensional precision estimation method of a low earth orbit satellite, and discloses a completely novel low earth orbit satellite posture simulation method for solving conventional technical defects, making up the blank of the aspect in China, and providing the analysis basis for advanced researches on low earth orbits. According to the technical scheme of the invention, the low earth orbit satellite imaging process is analyzed, corresponding imaging equations are established on the basis, and the positioning precision is obtained through the comparison of imaging equation results with errors and imaging equation results without errors.
|
The electronic structure and nature of chemical bonding in orthorhombic Si2N2O with substitution impurities (all 3d-atoms) in the cation sublattice have been investigated by the self-consistent ab initio discrete variation method. Consistent changes in the energy structure, interatomic interaction parameters, effective atomic charges, and local moments of substitution 3d-impurities in the series under study are discussed.
|
eng_Latn
| 153,855 |
Tensor Target Polarization at TRIUMF
|
The first measurements of tensor observables in π scattering experiments were performed in the mid-80's at TRIUMF, and later at SIN/PSI. The full suite of tensor observables accessible in π elastic scattering were measured: T20, T21, and T22. The vector analyzing power iT11 was also measured. These results led to a better understanding of the three-body theory used to describe this reaction. A direct measurement of the target tensor polarization was also made independent of the usual NMR techniques by exploiting the (nearly) model-independent result for the tensor analyzing power at 90°cm in the π → 2p reaction. This method was also used to check efforts to enhance the tensor polarization by RF burning of the NMR spectrum. A brief description of the methods developed to measure and analyze these experiments is provided.
|
Abstract In the application of some polymers as track detectors, the attention should be paid to the fact that the track recording properties of these polymers are changed under the influence of certain parameters, such as the electromagnetic radiations and environmental conditions. In this work the etching effects of 60Co gamma irradiated CR-39 polycarbonate have been studied. For deeper study of the structural changes in CR-39, the FTIR and UV–visible spectra have been analyzed. The FTIR spectra shows considerable changes due to the gamma exposure. The contribution of degradation mechanism is discussed.
|
eng_Latn
| 153,882 |
Frequency dependent ESR of the spinglass Gd.06La.94Al2
|
Abstract We report ESR experiments on a LaAl 2 sample doped with 6% Gd. The experiments were performed at 1, 3, 9 and 35 GHz. We find for T ≈ T c essentially a frequency independent shift of H res , but a frequency dependence for the minimum in the linewidth. The results will be discussed in terms of static internal fields and dynamic field fluctuations.
|
Abstract In the application of some polymers as track detectors, the attention should be paid to the fact that the track recording properties of these polymers are changed under the influence of certain parameters, such as the electromagnetic radiations and environmental conditions. In this work the etching effects of 60Co gamma irradiated CR-39 polycarbonate have been studied. For deeper study of the structural changes in CR-39, the FTIR and UV–visible spectra have been analyzed. The FTIR spectra shows considerable changes due to the gamma exposure. The contribution of degradation mechanism is discussed.
|
eng_Latn
| 153,895 |
Electronic Structure of 3d-Metal Impurities in Silicon Oxynitride
|
The electronic structure and nature of chemical bonding in orthorhombic Si2N2O with substitution impurities (all 3d-atoms) in the cation sublattice have been investigated by the self-consistent ab initio discrete variation method. Consistent changes in the energy structure, interatomic interaction parameters, effective atomic charges, and local moments of substitution 3d-impurities in the series under study are discussed.
|
Highly ordered mesoporous NiFe2O4 with excellent microwave absorption properties has been synthesized by using mesoporous silica (KIT-6) as a hard template.
|
eng_Latn
| 153,902 |
The Relationship between Workplace Friendship and Organizational Commitment Paper Presented in Corporate Communication International's Conference on Corporate Communication (NYC-U.S) 2011
|
The main objective of this study is to determine the nature of relationship between workplace friendship and organizational commitment. Data collected via a questionnaire survey of 302 employees in two Iranian organizations. The relationship between two dimensions of workplace friendship, which is including of Friendship Prevalence and Friendship Opportunity, and three components of organizational commitment (Affective, Continuance, and Normative Commitment) were examined using the Spearman Rho correlation.The findings indicate that the level of Organizational Commitment and Workplace Friendship are rather high among the administrative staff of the two companies. The overall pattern in the relationship suggests that workplace friendship has a significant influence on organization commitment among the respondents.
|
We present a computer simulation study of thin crystalline multilayers constructed from two FCC solids with differing lattice constants and binding energies. Both materials are described by Lennard-Jones interatomic potentials and initially have the same orientation and coherent interfaces. We have studied systems in which interfaces are perpendicular to the common [100] and [111] directions, respectively. A novel technique for analyzing local atomic ordering, Common Neighbor Analysis, is used to identify structural characteristics in these systems. We have found several structural changes in the layers of smaller atoms, including an FCC to HCP transition. In a system with (111) texture, a coherent interface to incoherent interface transformation is observed. Calculations of elastic constants of these multilayer structures show that elastic anomalies are associated with the structural variations.
|
eng_Latn
| 153,933 |
Corrigendum to Electrical transport and structural study of CuCr1-xMgxO2 delafossite thin films grown by pulsed laser deposition
|
The author regrets that during the publication of this paper an error occurred within the text of Section 3 andwithin figure. The corrected text and figure is reproduced below. Increasing the alloy percentage of Mg decreases the c-axis lattice parameter of the CuCr1− xMgxO2 phase in a basically linear fashion. Fig. 4 shows this trend, despite the fact thatMg forms a largerMg(II) cation in 6-fold coordination (with a 0.86 A radius) than the Cr(III) cation in 6-fold coordination (with a 0.75 A radius) otherwise sitting on its site. The c-axis lattice parameter is known to be almost independent of M(III) metal choice and this trend is thus likely a verification of the presence of holes sitting on Cu(I) lattice sites.
|
Abstract The Imagewise charge storage in a novel EIC design containing an extra As 2 Se 3 layer for electron storage is examined by time-of-light measurements and scanned laser beam readout. Longitudinal and lateral diffusion of electrons was found negligible in the time scale of hours. The activation energy for charge diffusion was roughly estimated to be 0.7 eV.
|
eng_Latn
| 153,935 |
Human remains in archaeology. Excavation, recording and analysis of data: the funerary context of San Severo in Classe
|
Funerary archaeology reveals burial practices and the ways in which such mortuary practices can express social identities. The integration of archaeological and anthropological evidence can offer significant data regarding burials. The study of the cemeteries of San Severo at Classe (Ravernna) is being carried out using this integrated approach. All phases of the site of San Severo are characterised by burials and this funerary practice changed and developed, reflecting the life of the basilica and the monastery. All information regarding the characteristics of the layers, the phases and activities of members is entered in the GIS platform, so composite plans can be automatically generated.
|
We present a system based on a Semantic Web approach to retrieve photos from events, organizations or even related to semantic concepts using context and social information, without require extra annotation work by the publishers. We make use of the knowledge of the system, represented in ontologies and semantic rules, to allow users search using its own terminology.
|
eng_Latn
| 154,206 |
AckSeer: a repository and search engine for automatically extracted acknowledgments from digital libraries
|
Named Entity Recognition Using An HMM-Based Chunk Tagger
|
A case study on automatic camera placement and motion for visualizing historical data
|
eng_Latn
| 154,262 |
What has developed a number of related concepts and terms?
|
Kinship can refer both to the study of the patterns of social relationships in one or more human cultures, or it can refer to the patterns of social relationships themselves. Over its history, anthropology has developed a number of related concepts and terms, such as "descent", "descent groups", "lineages", "affines", "cognates", and even "fictive kinship". Broadly, kinship patterns may be considered to include people related both by descent (one's social relations during development), and also relatives by marriage.
|
Just as the navigational approach would require programs to loop in order to collect records, the relational approach would require loops to collect information about any one record. Codd's solution to the necessary looping was a set-oriented language, a suggestion that would later spawn the ubiquitous SQL. Using a branch of mathematics known as tuple calculus, he demonstrated that such a system could support all the operations of normal databases (inserting, updating etc.) as well as providing a simple system for finding and returning sets of data in a single operation.
|
eng_Latn
| 154,332 |
As simple but as complex as everyday cooking: Stanislavski’s use of physical actions in the recreation of nature
|
This article considers Stanislavski’s understanding of the “laws of nature” from the point of view provided by Henri Lefebvre’s theories of everyday life. I will argue that Stanislavski’s last years of work saw the application of his approach to physical actions as a means to create an organicity (or accordance) on stage between nature and acting processes. The term “physical actions” will be fine-tuned to “everyday physical actions” in order to contrast everyday life’s seeming triviality with its potential to embody meaningful human relationships. The article will employ Stanislavski’s rehearsal notes for a 1933 production of Artists and Admirers as a case-study and main source. These notes are not available in English translation and therefore reference to this production has rarely been made in the field of Stanislavski studies.
|
With tongue in cheek, Jerry Bergman compares the current educational overemphasis on the upper end (the gifted and talented) to an area we are all familiar with-sports. The comparison helps us realize the results of the current attitude that supports expensive programs to help the below average, but grossly neglects the above average because of the feeling that they can “help themselves.”
|
eng_Latn
| 154,344 |
Ebola 'kills over 5,000 gorillas'
|
The deadly Ebola virus may have killed more than 5,000 gorillas in central Africa, a study finds.
|
US troops rounded up 49 suspected guerrillas near Saddam Hussein's hometown on Friday, a day after Iraq's most violent rebel groups warned
|
eng_Latn
| 154,819 |
where did the ebola virus originated
|
By the time the Ebola virus epidemic in West Africa began in 2013, there were at least nine different candidate treatments. Several trials were conducted in late 2014 and early 2015, but some were abandoned due to lack of efficacy or lack of people to study.rom 1976 (when it was first identified) through 2013, the World Health Organization reported 1,716 confirmed cases. The largest outbreak to date is the ongoing 2014 West Africa Ebola virus outbreak, which has caused a large number of deaths in Guinea, Sierra Leone, and Liberia.
|
The outbreak originated in Guinea and probably began in December 2013. 1 Ebola trends in West Africa (Data: WHO / Chart CC BY 4.0: JV Chamary / Source: http://onforb.es/1sCVxE1) 2 Ebola cases in West Africa (Data: WHO / Chart CC BY 4.0: JV Chamary / Source: http://onforb.es/1sCVxE1) 3 Ebola trends around the world.
|
eng_Latn
| 155,087 |
The Housing Struggle in Milan in the 1970s: Influences and Particularities:
|
The article examines the housing occupation movements in Milan in 1969-1975, relating them to the restricted supply of cheap housing—a situation that created difficulties for newly arrived immigran...
|
The aims of this paper are to present a case study of a music group which was carried out during a fieldwork in the year 1991 in Bolivia and to make some reflections about the group. The main theor ...
|
eng_Latn
| 155,095 |
Kaonic nuclei studied based on a new framework of antisymmetrized molecular dynamics
|
We have developed a new framework of antisymmetrized molecular dynamics (AMD), to adequately treat the I=0 KN interaction, which is essential to study kaonic nuclei. The improved points are 1) pK{sup -}/nK{sup 0} mixing and 2) total spin and isospin projections. These improvements enable us to investigate various kaonic nuclei (ppnK{sup -}, pppK{sup -}, pppnK{sup -}, {sup 6}BeK{sup -}, {sup 9}BK{sup -}, and {sup 11}CK{sup -}) systematically. We have found that they are deeply bound and extremely dense with a variety of shapes.
|
A bibliography containing 109 references is presented on the non- destructive analysis of irradiated and unirradiated reactor fuel assemblies. A description of the theory of each method, the equipment utilized, and estimates of the precision obtainable are cortained. Problems presented by variations in enrichment, alloying, cladding, geometrical arrangement, etc., are discussed. (C.J.G.)
|
eng_Latn
| 156,192 |
Regeneration system for regenerating chlorine-copper fuel cell by heat of solar energy
|
Solar thermal regeneration copper - chlorine fuel cell fuel reproducing method by the solar collection system and a reproducing system composed of a fuel, the fuel cell from lack of positive and negative fluid released after the reaction are respectively stored in two acid tanks, sunny day when the sun when, on the spent regeneration liquid fuel using solar heat. The solar energy into chemical energy stored by the fuel cell to convert chemical energy into electrical energy for people to use, when the capacity is large enough, may be copper - chloro provide sufficient fuel the fuel cell, the fuel cell to ensure against weather, continuous power generation when using the present invention for renewable fuels, the decomposition product is completely used as a fuel cell oxidant and reductant, no extra chemical waste generated, no impact on the environment, is environmentally friendly clean energy system.
|
In this paper, the modified Semiconductor Breaker/Relay (SBR) and related control modules, and some new methods to solve the problems of vehicle fire, battery service life and engine cold start emission have been presented. By theoretical and experimental analysis on applying the modified SBR etc, vehicle fire relating to circuit system may be avoided because of the fast and accurate control, battery service life can be extended because of the cyclic charging effect, and engine cold start emissions can be decreased because of the lower power consumption and the faster reaction of the catalytic converter during a cold start. Further study for the detailed numerical values still needs to do.
|
eng_Latn
| 156,201 |
Simulation of spatial fuel assay using HANARO neutron beam
|
A sensitivity simulation of neutron tomography was performed for the analysis of the spatial distribution of nuclear materials in the HANARO fuel rod. The internal distribution of the nuclear materials in the fuel rod is very important for the increase of the safety and economics of fuel burnup in the reactor. The neutron radiography facility installed at HANARO will be used for the spatial fuel analysis with a real-time image processing system. Monte Carlo simulation was performed to study the feasibility and sensitivity of the HANARO neutron beam for the spatial fuel assay and to find the optimum conditions for neutron detection. From the sensitivity simulation, the location of the nuclear materials in the rod was evident as expected.
|
The design of hydrogen production station for Nanhai No.1 Power Plant is presented,and some problems underlining the connection of old and new pipe lines in the process of hydrogen production station reconstruction are discussed. It is proposed to cut off and plug the hydrogen pipe line leading to the main power house after shutdown for hydrogen production station.Remaining hydrogen is purged by nitrogen before on-site welding.Such a design proposal yields sound effect,and some novel and optimized designs such as cooling water system,hydrogen storage system,outsourcing hydrogen system may be referred to by the extension of similar thermal power plant.
|
eng_Latn
| 156,231 |
Effect of recirculation rate on anaerobic treatment of fleshing using UASB reactor with recovery of energy
|
This study presents performance of upflow anaerobic sludge blanket (UASB) reactor in treating liquefied fleshings (LFs) with tannery wastewater (TWW) using liquefaction reactor (LR). With increase in recirculation rate, methane production increased in LR than in UASB reactor due to methanogenic bacteria in LR. UASB reactor with continuous feeding of LFs and TWW resulted with cumulative methane in UASB reactor (128 1) and LR (145 1).
|
This paper deals with the broad-band modeling of a realistic power converter shield used in an electric vehicle. To validate such a model, comparisons between computation and measurements are required. As it is not practical to characterize experimentally the true radiation of a power converter through its enclosure, a reciprocal approach has been defined in which the enclosure is illuminated by a plane wave (receiving configuration). The associated experimental setup has been carefully defined and tested. At low frequency, the model is based on radiation through apertures in a simple cavity. At higher frequency, the Aseris-BE code, which is based on the boundary integral equations technique, has been used for computation. An optimal and realistic mesh of the enclosure suitable for the Aseris-BE code has been built by making numerous comparisons between computation and measurements, which have shown how to improve the mesh.
|
eng_Latn
| 156,233 |
The pulse mixing method applied to the activity measurement of 85Sr
|
A very simple 4πβγ coincidence system which uses extendable dead-times and a common channel instead of a coincidence channel is described. All the major problems encountered in conventional systems are eliminated. An important feature of this system is its insensitivity to the delay between the beta and gamma pulses. This means that the activity measurement of a radio nuclide having a delayed state (1 μs) such as 85Sr is very simple. This was checked by the activity measurement of this radionuclide.
|
In this article amalgamation flotation combined flowsheet and adaptable technology additions was adopted basing on the full demonstration and experimental study,in addition of head grade:Au 7.18 g/t,Ag47.7 g/t, Cu 0.207%,experiment index:flotation bulk concentrate contain Au 54.00 g/t,Ag 509.0 g/t,Cu3.13%,the recovery of Au Ag Cu was 90.53%?95.98?97.67;full mud cyanide leaching:Au leaching rate is 84.60%?Ag leaching rate is 78.60%.
|
eng_Latn
| 156,238 |
Measurement of Strontium Isotopic Ratio in Natural Matrix Sample Containing Strontium-90
|
Strontium isotopic ratios in a natural matrix reference material (IAEA-A-12) containing strontium-90 were measured by means of a thermal ionization mass spectrometer with a multi-collector system (MC-TIMS). There was significant difference in the measured isotopic ratios between the IAEA-A-12 and a standard reference material of the strontium isotopes (SRM 987), and 88Sr/86Sr and 87Sr/86Sr of the IAEA-A-12 were smaller and 84Sr/86Sr was larger than those of the SRM 987. 90Sr/86Sr ratio was estimated, by calculating the number of atoms of the strontium-90 from its activity, to be 3.55 × 10−10.
|
In this paper, a modeling and simulation method for planar interdigitated ruthenium oxide MEMS supercapacitor was proposed based on the electrochemical reaction mechanism of supercapacitor. The study simulated the planar interdigitated ruthenium oxide MEMS super capacitor using Comsol software. The highly accurate charge and discharge curves of the super capacitor, electric potential distribution graph and the concentration distribution graph were got through simulation. The effects of two structure-parameters were discussed in the research.
|
eng_Latn
| 156,241 |
Handling alternative refrigerants safely
|
Refrigerants of one kind or another have been used for cooling in manufacturing since the 19th century. But only recently have they been the focus of so much attention. The phaseout of CFC-based substances has led to the development of a number of alternatives, each with its own characteristics, properties, and purposes. Properly handling and using these replacements benefit from an examination of their compositions and behaviors and review of the use of refrigerants overall.
|
This paper presents the ore reserve estimation of the Novaz-za (Italy) uranium deposit. The approach used in the first stage of the study is merely based on the chemical analyses of samples and can be considered as a “classical” geostatistical study of a thick stratiform low-grade deposit. In the second stage an attempt is made to use more efficient techniques than standard kriging in order to take into account additional information (ra-rioactivity measurements). For this purpose, cokriging has been adopted. A short introduction to this method is given.
|
eng_Latn
| 156,243 |
THE PHOTONUCLEAR REACTION Mo$sup 100$($gamma$,p)Nb$sup 9$$sup 9$
|
The photonuclear reactions ( gamma ,p) and ( gamma ,n) in Mo/sup 100/ were investigated at 30 Mev. The cross sections for the the reactions were 0.1 plus or minus 0.02 and 1.5 plus or minus 0.2 Mev-barn, respectively. The possible mechakisms are discussed. (J.S.R.)
|
The theoretical development, statistical treatment, and application of hot channel factors in compact SNAP reactors as represented by the SNAP 8 experimental core loading are presented. The channel and rod power effects of variation in the concentrations of uranium, hydrogen, and poison in the fuel rods are given. The statistical distributions of all variables are examined. A random selection of rods and channels is compared to the actual SNAP 8 configuration, with no difference noted. Confidence limits are set on hot rod and hot channel factors. Various other factors and aspects of the problem are discussed. The results of the study showed that the hot channel factors may be reduced to less than +2% over the nominal power, as opposed to a hot channel factor of about +10% as previously determined by empirical methods. (auth)
|
yue_Hant
| 156,245 |
Notice of RetractionHydrogen-rich gas from catalytic steam gasification of biomass in externally heated gasifier: Influence of catalyst on gasification performance
|
In the present study the catalytic steam gasification of biomass to produce hydrogen-rich gas with calcined dolomite and Nano-NiO/γ-Al2O3 as catalyst in an externally heated fixed bed reactor was investigated. Used the Nano-NiO/γ-Al2O3 as the catalyst, the highest H2 content was up to 57.82 mol%.
|
Fires in facilities containing nuclear material have the potential to transport radioactive contamination throughout buildings and may lead to widespread downwind dispersal threatening both worker and public safety. Development and implementation of control strategies capable of providing adequate protection from fire requires realistic characterization of ventilation system response which, in turn, depends on an understanding of fire development timing and suppression system response. This paper discusses work in which published HEPA filter data was combined with CFAST fire modeling predictions to evaluate protective control strategies for a hypothetical DOE non-reactor nuclear facility. The purpose of this effort was to evaluate when safety significant active ventilation coupled with safety class passive ventilation might be a viable control strategy.
|
eng_Latn
| 156,273 |
Systems approach to management education in India a study with special reference to university business schools
|
The System of Professional Training of Border Guards at Higher Educational Establishments in the Republic of India
|
Advancement in power system engineering education and research with power industry moving towards deregulation
|
eng_Latn
| 156,306 |
I want to do something to bring a change in the education system in India. How I can do so?
|
I want to change the education system in India. How can I have such power?
|
What do I do if I find my JEE study material uninspiring and boring?
|
eng_Latn
| 156,331 |
I want to be able to teach high school social studies or k-8. Should I just major in social studies or history and minor in education. Please HELP ME.
|
IGNOU, the most famous member of Common wealth universities and world award winner of Distance education of South Asia, offering BEd in teaching as well as other special cources like cirtificate in teaching primary school english , maths etc. IGNOU conducts a lot of other cources. Main features of the cources are,l\n1)Professional Quality\n2)Strict accademic policies\n3)Aproved by world bodies.\n4)International recognition\n5)Low and affordable fees\n6)Comfortable study at home.\n7)Better study materials\n8)Upgradation from one cource to another via joinig for aditional modules.\n9)Abouve all INDIAN quality in eduacation is reflected.\n\nThanks,\nAlex
|
Religious history follows the chronicles of how a religion began and how it has impacted a culture.\n\nNormal history is a gambit of how a people progressed through the ages. Religion will be a part of this too, but it won't be the focus.
|
eng_Latn
| 156,377 |
I have a few files created in PageMaker 7.0 but i want to start using Office. Is there any way I can convert those files into any of the Office programs (i.e. Word, Access, Excel)?
|
You can save as a .txt document and then open in MS Office. I can't imagine why tho as Pagem aker is so much more versatile.
|
you should go to the microsoft website and download their quote program.\n\nExcel 2003/2002 Add-in: MSN Money Stock Quotes \nBrief Description\nThis add-in for Microsoft Office Excel 2003 and Microsoft Excel 2002 allows you to get dynamic stock quotes from the MSN Money Web site. The add-in allows you to easily gather and study the stocks of interest to you.\n\n\nhttp://www.microsoft.com/downloads/details.aspx?FamilyID=485fccd8-9305-4535-b939-3bf0a740a9b1&DisplayLang=en
|
eng_Latn
| 156,620 |
Removing rolling shutter wobble
|
Geometric Models of Rolling-Shutter Cameras
|
Efficient and change-resilient test automation: an industrial case study
|
eng_Latn
| 157,211 |
SA mulls Thatcher extradition request
|
South Africa's justice ministry on Monday began studying a request from Equatorial Guinea to question Mark Thatcher who has been charged with bankrolling an alleged coup plot to topple the government in Malabo.
|
Venezuela withdraws its ambassador from Panama, in an on-going row about a pardon for four Cuban exiles.
|
eng_Latn
| 157,289 |
Zimbabwe Opposition Expected to Contest Election
|
Zimbabwe's main opposition party will likely contest March elections but will delay a formal announcement pending a visit by African experts to determine whether free and fair polls can be held, party sources said.
|
South Africa's justice ministry on Monday began studying a request from Equatorial Guinea to question Mark Thatcher who has been charged with bankrolling an alleged coup plot to topple the government in Malabo.
|
eng_Latn
| 157,318 |
(Ashley Judd reads.) In a 2004 CNN special on AIDS, I was joined by this athlete who revealed his HIV status in 1991
|
ETD collection for University of Nebraska - Lincoln | University of ... Salem, Laura S (2016) English Language Learners and Special Education: .... Gilbert, Ashley Danielle (2015) An exploration of the use of and the attitudes ...... McQuillen, Jodi Lynn (2014) A phenomenological study of aging with HIV/AIDS: In the ...... Krieb, Dennis E (2011) Academic library directors' perceptions of joining a...
|
Juvnal Habyarimana - Wikipedia Juvnal Habyarimana was the third President of the Republic of Rwanda, the post he held ... On April 6, 1994, he was killed when his airplane, also carrying the President of ... Cyprien Ntaryamira, the President of Burundi, the Chief of Staff of the Rwandan ... The plane crashed on the grounds of the presidential residence.
|
eng_Latn
| 157,701 |
Nonlocal analysis to study of the impact ionization and avalanche characteristics of deep submicron Si devices
|
Si~C-SiC Multiple Quantum Barrier High Speed, Wide-Band Avalanche Photodiodes
|
Porin channels in intact cells of Escherichia coli are not affected by Donnan potentials across the outer membrane.
|
eng_Latn
| 157,822 |
Comparison of results and models of solid-phase epitaxial growth of implanted Si layers induced by electron- and ion-beam irradiation.
|
Electron-irradiation-induced phase segregation in crystalline and amorphous apatite: A TEM study
|
No iron fertilization in the equatorial Pacific Ocean during the last ice age
|
eng_Latn
| 157,836 |
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