query
stringlengths
8
1.13k
pos
stringlengths
13
1.09k
neg
stringlengths
11
1.07k
query_lang
stringclasses
32 values
__index_level_0__
int64
41
1.05M
Name the other type of adaptive immune system component?
The study of the molecular and cellular components that comprise the immune system, including their function and interaction, is the central science of immunology. The immune system has been divided into a more primitive innate immune system and, in vertebrates, an acquired or adaptive immune system. The latter is further divided into humoral (or antibody) and cell-mediated components.
Dunn and Dunn focused on identifying relevant stimuli that may influence learning and manipulating the school environment, at about the same time as Joseph Renzulli recommended varying teaching strategies. Howard Gardner identified a wide range of modalities in his Multiple Intelligences theories. The Myers-Briggs Type Indicator and Keirsey Temperament Sorter, based on the works of Jung, focus on understanding how people's personality affects the way they interact personally, and how this affects the way individuals respond to each other within the learning environment. The work of David Kolb and Anthony Gregorc's Type Delineator follows a similar but more simplified approach.
eng_Latn
122,851
A comparative user study on rating vs. personality quiz based preference elicitation methods
Web Personalization as a Persuasion Strategy: An Elaboration Likelihood Model Perspective
Assessing power system state estimation accuracy with GPS-spoofed PMU Measurements
eng_Latn
122,874
Predicting personality with social behavior: a comparative study
Using linguistic cues for the automatic recognition of personality in conversation and text
Preparation and characterization of albumin nanoparticles encapsulating curcumin intended for the treatment of breast cancer
eng_Latn
122,918
Have a Great Personality
Having a great personality isn't about trying to be like other people. It's about finding what is great about you, and making that clearer to everyone else.
Have you ever wondered how all those people get good grades without studying all night and all day? Well, it's all about attitude. Read the guide below to help you.
eng_Latn
122,936
A multi-rater framework for studying personality: The trait-reputation-identity model.
perceiving others ' personalities : examining the dimensionality , assumed similarity to the self , and stability of perceiver effects .
Subjective Evaluation of Seal Robot: Paro -Tabulation and Analysis of Questionnaire Results
eng_Latn
122,974
what is personality
Personality refers to individual differences in characteristic patterns of thinking, feeling and behaving. The study of personality focuses on two broad areas: One is understanding individual differences in particular personality characteristics, such as sociability or irritability. The other is understanding how the various parts of a person come together as a whole. Adapted from the Encyclopedia of Psychology.
Personality is a dynamic and organized set of characteristics possessed by a person that uniquely influences their environment, cognitions, emotions, motivations, and behavioral science in various situations.ersonality is a dynamic and organized set of characteristics possessed by a person that uniquely influences their environment, cognitions, emotions, motivations, and behavioral science in various situations.
eng_Latn
122,995
is personality genetic
MAJOR PERSONALITY STUDY FINDS THAT TRAITS ARE MOSTLY INHERITED. THE genetic makeup of a child is a stronger influence on personality than child rearing, according to the first study to examine identical twins reared in different families. The findings shatter a widespread belief among experts and laymen alike in the primacy of family influence and are sure to engender fierce debate.
There are some important things to know when considering the genetic influences on personality. First, it is important to remember that genes are not solely responsible for our personality. Personality is a complex trait. A complex trait is a trait that is influenced by many different genetic and environmental factors. Personality traits are also polygenic. This means that multiple genes are involved in determining a trait.
eng_Latn
123,000
what focuses on the development of psychological tests
Personality psychology is a branch of psychology that studies personality and its variation among individuals.iology plays a very important role in the development of personality. The study of the biological level in personality psychology focuses primarily on identifying the role of genetic determinants and how they mold individual personalities.
Psychological testing also owes as much to early psychiatry as it does to the laboratories of experimental psychology. The examination of the mentally ill around the middle of the last century resulted in the development of numerous early tests.
eng_Latn
123,003
trait theory psychology definition
From Wikipedia, the free encyclopedia. In psychology, trait theory (also called dispositional theory) is an approach to the study of human personality. Trait theorists are primarily interested in the measurement of traits, which can be defined as habitual patterns of behavior, thought, and emotion.ccording to this perspective, traits are relatively stable over time, differ across individuals (e.g. some people are outgoing whereas others are shy), and influence behavior.
Gordon Allport, one of the pioneers of trait theory, recognized that there are 4000 personality traits in the dictionary, so he split these up into three categories; Cardinal, Central and Secondary. Cardinal traits are defined as traits that summarize a person entirely. For example, someone who is narcissistic.s with all theories, there are holes in the Individual Trait Theory. While it does explain biological and social factors contributing to one’s personality that can predispose a person to crime, there are many things it does not take into account, like situational decisions and the change in a person over time.
eng_Latn
123,010
personality feeling definition
Personality refers to individual differences in characteristic patterns of thinking, feeling and behaving. The study of personality focuses on two broad areas: One is understanding individual differences in particular personality characteristics, such as sociability or irritability. The other is understanding how the various parts of a person come together as a whole.
Size: 115 Views: 6. Personality is best defined as an individual’s: Characteristic pattern of thinking, feeling, and acting. Which of the following techniques was Freud most likely to use in an attempt to discover the.
eng_Latn
123,022
what is the definition of personality
Personality has to do with individual differences among people in behaviour patterns, cognition and emotion. Different personality theorists present their own definitions of the word based on their theoretical positions. The term personality trait refers to enduring personal characteristics that are revealed in a particular pattern of behaviour in a variety of situations.
Personality is that pattern of characteristic thoughts, feelings, and behaviors that distinguishes one person from another and that persists over time and situations. Personality psychology is a branch of psychology that studies personality and its variation among individuals.here is also a substantial emphasis on the applied field of personality testing. In psychological education and training, the study of the nature of personality and its psychological development is usually reviewed as a prerequisite to courses in abnormal psychology or clinical psychology.
eng_Latn
123,023
what is a keirsey temperament sorter
The Keirsey Temperament Sorter (KTS) is a self-assessed personality questionnaire designed to help people better understand themselves and others. It was first introduced in the book Please Understand Me.our temperaments [edit]. David Keirsey expanded on the ancient study of temperament by Hippocrates and Plato. In his works, Keirsey used the names suggested by Plato: Artisan (iconic), Guardian (pistic), Idealist (noetic), and Rational (dianoetic).
What is the 'Sortino Ratio'. The Sortino ratio is a variation of the Sharpe ratio that differentiates harmful volatility from total overall volatility by using the asset's standard deviation of negative asset returns, called downside deviation.
eng_Latn
123,027
what is an organizational personality
Organizational Behavior - Personality. The word personality is derived from a Greek word “persona” which means “to speak through.” Personality is the combination of characteristics or qualities that forms a person’s unique identity. It signifies the role which a person plays in public.
Organizational Behavior (OB) is the study and application of knowledge about how people, individuals, and groups act in organizations. It does this by taking a system approach … .
eng_Latn
123,029
Are these compatible with SPD pedals???
Technically yes but they're not very good when used with spd pedals. The cleats move around a lot (much more than a standard float) and unclipping is almost impossible. You'd be much better off with the mountain bike version of these (Shimano SH-M088).
Hello, I was able to make them fit on a older Honda. They are made of plastic so are pretty easy to file down/grind off material or drill holes into to make them fit,If you are handy. So I think they could work if you take your time , remove one side at a time and study the old shoe vs new one and see what holes you need to enlarge w a round/flat file or grinder, drill new holes etc: Take your time and have a beer, it worked for me but took a while to do : ). Hope this helps!
eng_Latn
123,207
Nigeria, Shell and the Ogoni People
This chapter will give an overview of the situation in Nigeria between 1958 and 1995. It reveals the power imbalance between the indigenous people of the Niger Delta and the oil corporations exploiting the region’s natural resources. Understanding the context of the situation in Nigeria will enable a better grasp of the root problem, namely the powder keg created by the impotence of minorities in the face of weak state governance and powerful corporate influence.
ABSTRACTThe aim of this study is to investigate the land ethics of tourists regarding the geotourism resources in the Protected Area of Manesht and Ghelarang, Ilam Province, Iran. The theoretical f...
eng_Latn
123,421
Beyond Misinformation: Survival Alternatives for Nigerian Media in the “Post-Truth” Era
AbstractAn enduring democracy is anchored on a strong information base and media are seen as one of the most important allies of the democratic process. However, media in Nigeria have been accused ...
We provide an overview of the background and recent developments in the study of the morphology evolution of thin film growth. In particular, complex non-local growth effects, including the shadowing effect and the re-emission effect, have been recently shown to significantly alter an evolving growth front. The physical principles behind these non-local effects are discussed, along with techniques used by researchers in the field to model such growth.
eng_Latn
123,423
Traditions of exclusiveness and ethnic identity in a changing African pastoralist society: the Fulbe of Adamawa, Nigeria
This paper focuses on the Fulbe of Adamawa Emirate, Nigeria. Rooted in a pastoral heritage, Fulbe identity has adapted to their new livelihood in modern, urban settings, while maintaining many of its essential features, in particular a rigid moral code (pulaaku) which the Fulbe believe is exclusively theirs. This study stresses the usefulness of combining the analysis of the ethnic symbols, which underscores the cultural and moral basis of ethnic behavior, with historical analysis, which illuminates the goal of political and material gain in modernizing African society. For the Fulbe themselves, their identity is an assertion of their moral and cultural superiority over other peoples.
ABSTRACTThe aim of this study is to investigate the land ethics of tourists regarding the geotourism resources in the Protected Area of Manesht and Ghelarang, Ilam Province, Iran. The theoretical f...
eng_Latn
123,425
A Critical Analysis of Globalilzation in the Context of Africa Underdevelopment
This paper examines globalization and localization processes that have occurred in tlze most developed and the least developed countries of the world respectiveZv. SpecificalZv, it jocuses on Sub-Saharan Africa (SSA) as a case study. While globalization is considered as a pride to the West and Europe, Africa is still being regarded as localized. The paper goes filrther to address the imbalance and disparity that have existed bern.'een the developed and underdeveloped countries in the areas of electronic, commerce, Information Communication Technology (ICT) among others. Also, the opportunities and challenges posed by globalization are critically focused. The paper identifies the Aji-ican problems of underdevelopment and proposes strategies by which these problems could be solved so that Africa would be able to 'catch up' in the globalization process.
Acknowledgments Introduction Albert Lutuli and the ANC Robert Sobukwe and the PAC Steve Biko and the BCM Desmond Tutu and the UDF Afterword Bibliography
eng_Latn
123,464
Common sense and keyboard nonsense, or, what happens when you press ESCape?
If you use a personal computer, you probably use more than one program and you probably use some programs more often than others. If your personal computer is an IBM PC or compatible, you have probably become confused when starting to use a new program or one you have not used recently. The author completes a baker's dozen of “Common Sense Personal Computing” articles with a somewhat lighthearted look at a fairly serious problem — how programs frustrate occasional users, make life interesting for power users and trap unwary users of all sorts. He discusses odd and inconsistent uses of keystrokes, overuse of function and special keys, and problems in identifying functions and keystrokes.
Since international awareness of a global rush for land has grown from 2008 onward, various databases and reports have attempted to provide an overview of the situation by compiling information on individual land deals. While providing such an overview is challenging owing to the dynamic and untransparent nature of the investments, flawed methods of using and citing data are aggravating that challenge and allowing dissemination of inaccurate information. The consequences are an unnecessarily blurred picture of the land deal situation and thus an inadequate basis for related political decisions or social actions and a misleading starting point for new research projects. In this article we demonstrate some of the flaws in the use of data and their consequences, with examples from fieldwork and literature on Tanzania. The paper illustrates and contributes to the evolving debate on appropriate research methodologies for studying the global land rush.
eng_Latn
123,465
Influence of perceived information needs on the social psychological wellbeing of prison inmates in south west Nigeria
This study assessed the influence of perceived information need on the socio-psychological wellbeing of prison inmates in Southwest Nigeria. This study was a survey involving the design and administration of questionnaires to 720 prison inmates in Southwest Nigeria. Data analysis was done by means of both descriptive and inferential statistics. Findings from the study revealed that prison inmates in the zone appeared to have a clear understanding of their information needs but this could not translate into an improved socio-psychological wellbeing. The study concluded that government need to reduce pre-trial detention and prison overcrowding by minimising pre-trial waits, and setting a maximum allowable wait time, implement a population capacity for all prisons based on design capacity; upgrade prison infrastructure, rehabilitate and build facilities to improve the socio-psychological wellbeing of prison inmates.
This paper uses cross-country firm-level surveys to gauge access to financial services and the importance of financing constraints for African enterprises. We compare access to finance in Africa and other developing regions of the world, within Africa across countries, and across different groups of firms. We relate firms' access to finance to firm and banking system characteristics and discuss policy challenges.
eng_Latn
123,466
What is Nigeria's official language?
Nigeria is often referred to as the "Giant of Africa", owing to its large population and economy. With approximately 182 million inhabitants, Nigeria is the most populous country in Africa and the seventh most populous country in the world. Nigeria has one of the largest populations of youth in the world. The country is viewed as a multinational state, as it is inhabited by over 500 ethnic groups, of which the three largest are the Hausa, Igbo and Yoruba; these ethnic groups speak over 500 different languages, and are identified with wide variety of cultures. The official language is English. Nigeria is divided roughly in half between Christians, who live mostly in the southern part of the country, and Muslims in the northern part. A minority of the population practise religions indigenous to Nigeria, such as those native to Igbo and Yoruba peoples.
Napoleon's noble, moderately affluent background afforded him greater opportunities to study than were available to a typical Corsican of the time. In January 1779, he was enrolled at a religious school in Autun. In May, he was admitted to a military academy at Brienne-le-Château. His first language was Corsican, and he always spoke French with a marked Corsican accent and never learned to spell French properly. He was teased by other students for his accent and applied himself to reading. An examiner observed that Napoleon "has always been distinguished for his application in mathematics. He is fairly well acquainted with history and geography... This boy would make an excellent sailor."[note 3]
eng_Latn
123,764
where was james polk born
James Knox Polk (November 2, 1795 – June 15, 1849) was the 11th President of the United States (1845–49). Polk was born in Pineville, North Carolina, and moved to Tennessee to study law. After building a successful law practice, he was elected to the Tennessee legislature and then to the United States House of Representatives in 1825.
James K. Polk (1795-1849) was the eleventh president of the United States. His name is perhaps most closely associated with Manifest Destiny, as the term was coined by a fellow Democrat in 1843, the year before he began his presidency.
eng_Latn
123,978
what year was aaron burr born
Who Served Here? Aaron Burr was born in 1756 in New Jersey. He was the son of Aaron Burr, Sr. — the second president of Princeton as well as the grandson of Jonathan Edwards. He graduated at 16 from the College of New Jersey [which later became Princeton University] as a student of theology. He eventually switched his career track to study law.
While their younger daughter, Sarah, died at age three, their older daughter Theodosia Burr, born in 1783, became widely known for her beauty and accomplishments. She married Joseph Alston of South Carolina in 1801, and died either due to piracy or in a shipwreck off the Carolinas in the winter of 1812 or early 1813.
eng_Latn
124,045
who was john locke and what did he invent
First published Wed Nov 9, 2005; substantive revision Mon Jan 11, 2016. John Locke (1632–1704) is among the most influential political philosophers of the modern period. In the Two Treatises of Government, he defended the claim that men are by nature free and equal against claims that God had made all people naturally subject to a monarch.
John Locke is widely known to pioneer the concepts of identity, self and consciousness. He believed the human mind to be a clean slate, born without pre-existing ideas and that knowledge came with experience. John Locke was born to Puritan parents on August 29, 1632 in Wrington, Somerset.He grew up in Pensford, Belluton where the family moved soon after Locke’s birth. In 1647, Locke was sent to London to study in the prestigious Westminister School. After the completion of his schooling, Locke entered Christ Church, Oxford.he Father of Liberalism, John Locke was one of the most significant Enlightenment thinkers as well as a physician and philosopher.
eng_Latn
124,122
who was the principal author of the constitution?
James Madison, the principal original author of that document’s original text who also wrote the first 10 Amendments, wrote in the Federalist Papers that “The powers delegated by the proposed Constitution to the federal government are few and defined. – Federalist Paper #45, paragraph #9.
James Madison of Virginia, known as the Father of the Constitution, was that document's chief architect, along with its First Amendment. A study of Madison's public life reveals that he was a defender of religious liberty.
eng_Latn
124,162
what date did carter woodson die
Woodson died suddenly from a heart attack in his “office home” on April 3, 1950. He never married and had no children. Deservingly dubbed “The Father of Black History,” he was, simply put, a black history institution builder.
The Father of Black History Month, Dr. Carter G. Woodson, was born in 1875 near New Canton, Va. He was the son of former slaves. In 1907, he obtained his master’s degree from the University of Chicago. In 1912, he received his Ph.D. from Harvard University. In 1915, he and friends established the Association for the Study of Negro Life and History, following Woodson’s realization how black people were underrepresented in the books and conversations that shaped the study of American history.
eng_Latn
124,191
who is the second president of the united states
John Adams was the second President of the United States. He was a member of both Continental Congresses and he signed the Declaration of Independence. He was the first Vice President of the United States. In 1755, he graduated from Harvard University and then went on to study law before being admitted to the Boston Bar in 1758. He married Abigail Boylston of Braintree, Massachusetts.
Nationality: United States. Executive summary: 2nd President of the U.S. John Adams, second president of the United States of America, was born on the 30th of October 1735 in what is now the town of Quincy, Massachusetts. His father, a farmer, also named John, was of the fourth generation in descent from Henry Adams, who emigrated from Devonshire, England, to Massachusetts about 1636; his mother was Susanna Boylston Adams.
eng_Latn
124,205
who is sam rayburn
Sam Rayburn was an American politician who was the Speaker of the House, Majority Leader to Congress and Chairman of the National Democratic Convention. Learn more at Biography.com. Sam Rayburn was an American politician best known for his roles as Speaker of the House, Majority Leader to Congress and Chairman of the National Democratic Convention. Synopsis Sam Rayburn was an American politician born on January 6, 1882, in Kingston, Tennessee. After graduating from East Texas Normal College (now Texas A&M University-Commerce) and studying law at University of Texas at Austin, he was elected to the Texas House of Representatives in 1906 and served from 1907-1913.
PlacesBonham, TexasHistorical PlaceSam Rayburn House State Historic Site. I have lived in Bonham for 29 years and this was the first time I visited the Sam Rayburn House Museum. My family and I enjoyed it very much. My children who ar...e 6,4, and 2 years old even found something interesting to them.....the old vehicles, the kitchen, and the turkey!
eng_Latn
124,222
Texas Business Review, June 1952
The Business Situation in Texas; Construction; Retail Trade; Industrial Production; Prices; Agriculture; Cotton; Labor; Finance; Foreign Trade; Directory of Texas Manufacturers
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 ...
kor_Hang
124,228
what is hazop
A hazard and operability study (or HAZOP) is a systematic, critical examination by a team of the engineering and operating intentions of a process to assess the hazard potential of mal-operation or mal-function of individual items of equipment and the consequential effects on the facility as a whole.
In a large process there will be many HAZOP meetings and the team may change as different specialists and possibly different members of the design team are brought in, but the Study Leader and Recorder will usually be fixed.
eng_Latn
125,461
what is pilot program tax
Caltrans Launches Pilot Program to Study State Mileage Tax for Road Maintenance. A Caltrans pilot program is underway to study a mileage tax for California drivers instead of the current gas tax to pay for road maintenance. The gas tax drivers pay at the pump has been working well for decades.
The dealer then repays that debt as they sell their inventory and borrows against the line of credit to add new inventory. What is the SBA’s Dealer Floor Plan Financing Pilot Program and how does it work? The SBA’s DFP Pilot Program provides access to capital through the SBA’s 7(a) loan program. DFP loans can be made by all SBA-approved lenders.
eng_Latn
125,506
This came about through a typical piece of gamesmanship by Grace when he effected an unsporting , albeit legal , run out of Sammy Jones .
This came about through a piece of gamesmanship by Grace when he made an unsporting , but legal , run out of one of the Australian batsmen .
Trying to solve this problem Dudley started offering `` a course study suited to the ability and needs of students . ''
eng_Latn
125,854
Is there any possibility of Virat Kohli breaking Sachin's numerous records?
The way Virat Kohli is playing, do you thing he can break Sachin's record?
Can I get 80% marks in physics and chemistry CBSE class 12 boards just by studying past year questions and chapterwise solutions?
eng_Latn
126,004
I am currently studying Fitch-style natural deduction and I am having trouble proving $p ∨ (p → q)$ without being given a premise. Below is something I've tried. But it doesn't seem right at all. I'm only using basic intro/elim rules with LEM. Help is greatly appreciated :)
I'm having a bit of trouble proving this with the propositional calculus rules. $$p \lor (p\implies q)$$ Would someone mind helping me and showing which rules they've used with an explanation! Thanks!
The entire site is blank right now. The header and footer are shown, but no questions.
eng_Latn
126,965
axioms definition
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1 maxim, axiom(noun) a saying that is widely accepted on its own merits. 2 axiom(noun) (logic) a proposition that is not susceptible of proof or disproof; its truth is assumed to be self-evident.
The term has subtle differences in definition when used in the context of different fields of study. As defined in classic philosophy, an axiom is a statement that is so evident or well-established, that it is accepted without controversy or question. As used in modern logic, an axiom is simply a premise or starting point for reasoning.
eng_Latn
127,131
what is boolean algebra
DEFINITION of 'Boolean Algebra'. A division of mathematics which deals with operations on logical values. Boolean algebra traces its origins to an 1854 book by mathematician George Boole. The distinguishing factor of Boolean algebra is that it deals only with the study of binary variables. Most commonly boolean variables are presented with the possible values of 1 (true) or 0 (false).
A Boolean expression is an expression that evaluates to a value of the Boolean Data Type: True or False. Boolean expressions can take several forms. The simplest is the direct comparison of the value of a Boolean variable to a Boolean literal, as shown in the following example. VB. Copy.
eng_Latn
127,168
what is logical inference
In logic, a rule of inference, inference rule or transformation rule is a logical form consisting of a function which takes premises, analyzes their syntax, and returns a conclusion (or conclusions).
Introduction to Logic. Basic Definitions. Logic is the study of the criteria used in evaluating inferences or arguments. An inference is a process of reasoning in which a new belief is formed on the basis of or in virtue of evidence or proof supposedly provided by other beliefs. An argument is a collection of statements or propositions, some of which are intended to provide support or evidence in favor of one of the others.
eng_Latn
127,183
what is negate
Negate is defined as to deny, to prove false or to cause something to not be needed. 1 An example of to negate is to conduct a study to prove a theory false. 2 An example of to negate is for an umbrella to take away the need for a hood.
In symbolic terms, you negate a statement by sticking in front of it (putting the whole statement in brackets if it is complicated enough to need it). You can then read as “not”, or if you want to be absolutely sure you are getting the meaning right, as “it is not the case that”.
eng_Latn
127,207
Classification Agent-Based Techniques for Detecting Intrusions in Databases
This paper presents an agent specially designed for the prevention and detection of SQL injection at the database layer of an application. The agent incorporates a Case-based reasoning mechanism whose main characteristic involves a mixture of neural networks that carry out the task of filtering attacks. The agent had been tested and the results obtained are presented in this study.
In the wake of rises in our national educational fund and popularization of higher education,the increase of students has posed many problems for the college student management.A mass of student management affairs and student data often needs dealing with.Informatization construction of college student management must be enforced,which needs the combination of network technology and database construction.The working database contains basic student information and can be easily operated,in order to realize the interaction between management staff and students,improve the deficiencies in students' management work,and increase the work efficiency of students' management.
kor_Hang
127,226
fraud detection system : a survey .
Filter methods for feature selection: a comparative study
Feature Selection for High-Dimensional Data: A Fast Correlation-Based Filter Solution
eng_Latn
127,234
FraudFind: Financial fraud detection by analyzing human behavior
Internal fraud risk reduction: results of a data mining case study
google scholar : the pros and the cons .
eng_Latn
127,268
A Neuro-Fuzzy Classifier for Customer Churn Prediction
ANFIS : Adap tive-Ne twork-Based Fuzzy Inference System
An LTV model and customer segmentation based on customer value: a case study on the wireless telecommunication industry
eng_Latn
127,275
Risk Management for Third Party Payment Networks
Data mining for credit card fraud: A comparative study
Is There a Cost to Privacy Breaches? An Event Study
eng_Latn
127,276
comprehensive study and analysis of malicious website detection techniques .
Current Studies On Intrusion Detection System, Genetic Algorithm And Fuzzy Logic
a survey on machine learning techniques for intrusion detection systems .
eng_Latn
127,280
Fraud Detection in Mobile Payments Utilizing Process Behavior Analysis
ROC Graphs: Notes and Practical Considerations for Researchers
Maxillary anterior papilla display during smiling: a clinical study of the interdental smile line.
eng_Latn
127,288
The four subjects of quadrivium were thought as?
The four subjects of the quadrivium arithmetic geometry music and astronomy were thought of as the study and their relationship to physical space or time?
The four subjects of the quadrivium arithmetic geometry music and astronomy were thought of as the study and their relationship to physical space or time?
eng_Latn
127,364
What are the importance of mathematical induction?
What is the significance of mathematical induction?
If Aryan Invasion theory is debunked, why are we in india still studying it in our history books?
eng_Latn
127,438
who coined the term geography for the first time
Map of the Earth. Geography (from Greek γεωγραφία, geographia, lit. earth description) is a field study of the lands, the features, the inhabitants, and the phenomena of Earth.A literal translation would be to describe or picture or write about the earth. The first person to use the word geography was Eratosthenes (276–194 BC).eography has been called the world discipline and the bridge between the human and the physical science . Geography is divided into two main branches: human geography and physical geography.
History of Geography. In Ancient Greece, Eratosthenes is credited to have been the person who coined the word geography. The first books on the subject were thought to be Homer's Iliad and The Odyssey. Thales the philosopher is credited with laying the foundation for the study of geography. But all these were preceded by the ancient Babylonians who made the first world maps in the 9th Century BC.
eng_Latn
127,653
who coined the term learning curve
The term was coined by Hermann Ebbinghaus through studies he performed on himself, and refers to the finding that recall accuracy varies as a function of an item's position within a study list.he continuity effect or lag-recency effect predicts that having made a successful recall, the next recall is likely to be a neighboring item in serial position during the study period. The difference between the two items' serial position is referred to as serial position lag.
However, interest in his life and work has increased. Patricia Rothman at University College London has analysed William Jones’s circle of influence in London in her article ‘William Jones and his circle: the man who invented the concept of pi’, History Today, 2009, 59/7, 24–30.
eng_Latn
127,655
Sing Like Justin Bieber
Justin Bieber has a dynamic and agile voice that might seem difficult to learn. However, just like Justin learned his style by emulating performers like Usher and Justin Timberlake, you can also learn to emulate Justin Bieber.
Want to get straight A's in every subject? Want to be top of the class? Well, read this article on how to study like Hermione Granger (from Harry Potter ) and you'll be acing those tests in no time!
deu_Latn
127,773
Switching Operations in Normal, Emergency and Restorative States in Power Systems Present Status and Future Prospects
Abstract Power systems in Japan still have a continual upward tendency in size and complexity with increasing demand. Energy control centers have been expanded to cope with requirements by the modern society for the more reliable supply of electric power. Special importance has been attached to the swift and exact switching operation in emergency and restorative states. As it is almost beyond human intervention, tile automated switching operation is under study. Switching operations to be executed at the points of action (power station, substation) will be integrated into a most effective pattern of switching operations under supervision of the points of decision making (central and regional dispatching offices) in the near future.
Multilevel Conversion systems have certain advantages that can be applied in renewable energy systems. To verify that advantages we are developing a re-configurable 1 kW prototype. Among the experiments that we have considered, a sliding mode control law can force this converter to behave like an AC Current Source. We model our converter like a set of Tibuck converters operating sequentially. Some experimental results are given.
eng_Latn
127,944
Microgrid system at Centre for Alternative Technology
The Centre for Alternative Technology (CAT) is a pioneering research and demonstration centre that inspires, informs and enables practical solutions for sustainable living. CAT has established a worldwide reputation as the leading organisation demonstrating environmental technologies.
This paper reports on the development of MATLAB tools for analysis and design of multirate control systems. The routines developed are applied to a case study of designing power system stabilizers.
eng_Latn
127,945
A Comparative study of control topologies for single-phase UPS inverter system
Uninterruptible Power Supplies (UPS) have several closed loop control topologies for control of Voltage Source Inverter (VSI). The topologies vary mainly due to choice of control/feedback variable. This paper attempts to categorize different control topologies and highlights the similarities/differences between them. Further, an analytical study on the basis of steady-state and transient performance, design complexity and cost is also presented. Respective control strategies under different loading conditions have been simulated in MATLAB environment in Discrete Time Frame (DTF) for comparative analysis.
Abstract The forms of the temperature and downwind spectra are examined in the well-mixed and overlying stable layers of the tropical boundary layer. The data were obtained from the tethered balloon system designed for GATE. In the mixed layer, the spectra exhibit an inertial subrange. Preliminary data indicate that a buoyant subrange obeying a −3 power law exists over a range of wavenumbers in the stable layer.
eng_Latn
127,947
Lyapunov-Function and Proportional-Resonant-Based Control Strategy for Single-Phase Grid-Connected VSI With LCL Filter
Lyapunov-based control for switched power converters
basic principles of information protection a . considerations surrounding the study of .
eng_Latn
127,954
Comparative study of cycloconverter based double-ended isolated microinverter topologies for solar photovoltaic AC (SPVAC) module
Design Optimization of Transformerless Grid-Connected PV Inverters Including Reliability
XNOR Neural Engine: a Hardware Accelerator IP for 21.6 fJ/op Binary Neural Network Inference
eng_Latn
128,077
Power Flow Analysis on AC And DC Transmitting Concurrently Along the Same Feeder Line in Distribution Network
In this paper, the idea that the DC generated by distributed generation (DG) transmits concurrently with AC in the same feeder line in distribution network is presented. The basic concept and the circuit topology are also expressed. For the low capacity DG, it is proposed a concept of “suppositional stack bus” which is useful and convenient for AC and DC power flow computation. After decoupling AC and DC network at the place of “suppositional stack bus”, the computation turns to be simple and rapid. Case study shows that network loss is smaller and voltage is more balanced under this way. So the advantage of the operation as well as the availability of the calculation method is proved.
This paper considers corona discharge problems with multiple conductors, such as those appearing in some electrostatic precipitators. A common precise condition is identified in which the previous approaches proposed in the literature fail. For dealing with these conditions, a novel, stabilized, and regularized formulation of the problem is proposed. Moreover, a Newton–Raphson scheme is defined for iteratively solving a nonstandard Petrov–Galerkin finite-element discretization of the problem. The presented approach is validated on a benchmark for which an analytical solution is known and its applicability to problems of industrial relevance is shown.
eng_Latn
128,120
This study evaluated counseling groups held in four public schools for parents of learning disabled children utilizing parents of exceptional children as paraprofessional co-counselors. The counseling groups were evaluated using 13 of the 23 participating parents for whom data were available. Control groups were formed on a post hoc basis by matching for family education. Parents who participated in the counseling increased the frequency of their visits with their children's teachers subsequent to initiation of the counseling groups, but no other improvements were found.
Nursing's ultimate goal in intervening with families providing home care for a stroke victim or chronically ill member is to facilitate adaptation to the condition in a manner that results in optimal physical and mental health of the patient and of the family. Chronic illness can impose an immense burden on families unprepared to meet this challenge. This study examined the impact of pertinent information and anxiety on patterns of stress in families providing care at home for a stroke patient. The findings demonstrate support for the proposition that as knowledge of pertinent information regarding stroke increases, healthier patterns of dealing with stress will be observed.
It is proved, by using topological properties, that when a group automorphism of a locally compact totally disconnected group is ergodic under the Haar measure, the group is compact. The result is an answer for Halmos's question that has remained open for the totally disconnected case.
eng_Latn
128,200
We show that various classes of products of manifolds do not support transitive Anosov diffeomorphisms. Exploiting the Ruelle-Sullivan cohomology class, we prove that the product of a negatively curved manifold with a rational homology sphere does not support transitive Anosov diffeomorphisms. We extend this result to products of finitely many negatively curved manifolds of dimensions at least three with a rational homology sphere that has vanishing simplicial volume. As an application of this study, we obtain new examples of manifolds that do not support transitive Anosov diffeomorphisms, including certain manifolds with non-trivial higher homotopy groups and certain products of aspherical manifolds.
We study aspherical manifolds that do not support Anosov diffeomorphisms. Weakening conditions of Gogolev and Lafont, we show that the product of an infranilmanifold with finitely many aspherical manifolds whose fundamental groups have trivial center and finite outer automorphism group does not support Anosov diffeomorphisms. In the course of our study, we obtain a result of independent group theoretic and topological interest on the stability of the Hopf property, namely, that the product of finitely many Hopfian groups with trivial center is Hopfian.
ABSTRACTUNC-45A is an ubiquitously expressed protein highly conserved throughout evolution. Most of what we currently know about UNC-45A pertains to its role as a regulator of the actomyosin system...
eng_Latn
128,219
On pointwise approximation of arbitrary functions by countable families of continuous functions
The following problem is considered. Given a real-valued function f defined on a topological space X, when can one find a countable familyfn:n∈ω of continuous real-valued functions on X that approximates f on finite subsets of X? That is, for any finite set F⊂X and every real number e>0 one can choosen∈ω such that ∥f(x)−fn(x)∥<e for everyx∈F. It will be shown that the problem has a positive solution if and only if X splits. A space X is said to split if, for any A⊂X, there exists a continuous mapfA:X→Rω such that A=fA−1(A). Splitting spaces will be studied systematically.
The purpose of this paper is to study a new class of framed manifolds. Such manifolds are called almost -cosymplectic f -manifolds. For some special cases of and s, one obtains (almost) -cosymplectic, (almost) C-manifolds, and (almost) Kenmotsu f -manifolds. Moreover, several tensor conditions are studied. We conclude our results with a general example on -cosymplectic f -manifolds.
eng_Latn
128,239
Periodic and eventually periodic points of affine infra-nilmanifold endomorphisms
In this paper, we study the periodic and eventually periodic points of affine infra-nilmanifold endomorphisms. On the one hand, we give a sufficient condition for a point of the infra-nilmanifold to be (eventually) periodic. In this way we show that if an affine infra-nilmanifold endomorphism has a periodic point, then its set of periodic points forms a dense subset of the manifold. On the other hand, we deduce a necessary condition for eventually periodic points from which a full description of the set of eventually periodic points follows for an arbitrary affine infra-nilmanifold endomorphism.
Consider the Fano surface of a conic bundle embedded in $\mathbb P^5$. Let $i$ denote the natural involution acting on this surface. In this note we provide an obstruction to the identity action of the involution on the group of algebraically trivial zero cycles modulo rational equivalence on the surface.
eng_Latn
128,245
Twistor spaces and spinors over loop spaces
In this paper two natural twistor spaces over the loop space of a Riemannian manifold are constructed and their equivalence is shown in the Kahlerian case. This relies on a detailed study of frame bundles of loop spaces on the one hand and, on the other hand, on an explicit local trivialization of the Atiyah operator family [defined in Atiyah (SMF 131:43–59, 1985)] associated to a loop space. We relate these constructions to the Dixmier-Douady obstruction class against the existence of a string structure, as well as to pseudo - line bundle gerbes in the sense of Brylinski (Loop spaces, characteristic classes and geometric quantization. Birkhauser, Basel, 1993).
In this work, firstly we describe all normal extensions of a minimal operator generated by linear differential-operator expression of first order in the Hilbert space of vector functions in finite interval. Later on, we investigate discreteness of spectrum and asymptotical behavior of s-numbers of the inverses of these normal extensions.
eng_Latn
128,249
Let $X$ and $Y$ be connected, locally path connected, and Hausdorff topological spaces. Can someone give me an example of a surjective local homeomorphism that is not a covering? I don't think this is the same question as ? There's different conditions?
I am trying to find examples of maps between topological space which are local homeomorphism but not covering maps. Especially, how twisted has to be such a counterexample : can it be a local diffeomorphism between connected manifolds which is not a covering map ? I found here() a nice proposition which state that a local homeo from a compact space to a connected Hausdorff space is a covering map. I am interested in all type of counterexamples, from non-Hausdorff spaces to surfaces, to get a better picture of the differences between covering maps and local homeomorphisms. Thank you !
I want to learn more about hopf algebras but I am having trouble finding a down to earth introduction to the subject with lots of motivation and examples. My algebra knowledge ranges from Dummit and Foote, Atiyah-Macdonald commutative algebra, and Hartshorne level algebraic geometry. What are good places to look at for a hopf algebra beginner? My main motivation is for studying groupoid schemes from an algebraic point of view.
eng_Latn
128,290
On the product of an abelian group and a nilpotent group
We study the structure of the product of an Abelian group and a nilpotent group. Conditions for the existence of a normal subgroup in one of the factors are given. These conditions generalize the known results on the product of two Abelian groups. The statements obtained are used to describe the structure of a product of an infinite cyclic subgroup and a periodic nilpotent subgroup.
In this paper we address the celebrated Albert problem for exceptional Jordan algebras (i.e. Albert algebras): Does every Albert division algebra contain a cubic cyclic subfield? We prove that for any Albert division algebra $A$ over a field $k$ of arbitrary characteristic, there is a suitable isotope that contains a cubic cyclic subfield. It follows from this that for any Albert division algebra $A$ over a field $k$, the structure group $\text{\bf Str}(A)$ always contains a subgroup of type $^3D_4$ defined over $k$.
eng_Latn
128,959
Estimation of heat flux imposed on the rake face of a cutting tool: A nonlinear, complex geometry inverse heat conduction case study ☆
Analyses of Effects of Cutting Parameters on Cutting Edge Temperature Using Inverse Heat Conduction Technique
101 Flux Decline in Ultrafiltration Processes
eng_Latn
129,277
Microstructure of Sn-Ag-Cu lead-free flip chip interconnects during aging
Six cases of reliability study of Pb-free solder joints in electronic packaging technology
Massive spalling of intermetallic compounds in solder-substrate reactions due to limited supply of the active element
eng_Latn
129,280
Creep damage study at powercycling of lead-free surface mount device
D STUDY OF THERMAL STRESSES IN LEAD-FREE SURFACE MOUNT DEVICE
D STUDY OF THERMAL STRESSES IN LEAD-FREE SURFACE MOUNT DEVICE
eng_Latn
129,284
We have developed a process for multistep sequential batch self assembly of complex three dimensional ferromagnetic microstructures. The process uses the magnetic torque generated by an external magnetic field perpendicular to the substrate to lift hinged structures. In our previous study, we found that a nondimensional factor that depends on its shape determines the sensitivity of the micro hinged structures to a magnetic field. This factor can be used as a criterion in designing a process for sequential batch self assembly, because the factor indicates the differences in the sensitivity. In this study, we designed multistep sequential assembly by using the nondimensional factor. Four step sequential batch assembly was demonstrated using this method.
In this paper we present a novel method for batch assembly of polysilicon hinged structures. The method uses ultrasonic vibrations generated with an attached piezoelectric actuator to vibrate polysilicon plates on silicon nitride or polysilicon surfaces. We believe that the rubbing between the substrate and the structures creates contact electrification charge that results in hinged flaps to be stabilized vertically on the substrate at elevated temperatures. Furthermore, the ultrasonic triboelectricity is shown to be the most likely explanation due to the observed "memory effect" in which assembly occurs even without further ultrasonic actuation after the initial ultrasonic assembly. This method has been used to batch assemble an array of hinged flaps, retroreflectors, and plates with retaining springs.
We consider the one-dimensional symmetric simple exclusion process with nearest neighbor jumps and we prove estimates on the decay of the correlation functions at long times.
eng_Latn
129,311
Simulation of Ironing Process for Earring Reduction in Sheet Metal Forming
Experimental and numerical study of the ironing of stainless steel cups
No iron fertilization in the equatorial Pacific Ocean during the last ice age
eng_Latn
129,322
Modern Power Semiconductor Devices (A Review)
Comparative study of Heatsink materials for Gallium Nitride HEMT modules using thermal modelling
Data Driven Prognostics for Failure of Power Semiconductor Packages
kor_Hang
129,326
This chapter discusses the dislocation core effects on mobility. Its purpose is to discuss the atomic structure and interactions in the dislocation core and their effects on dislocation mobility from the standpoint of theoretical concepts, physical models and simulation studies, with due consideration of relevant experimental results. The major emphasis is placed on physical ideas and observations. In fact, technical details of modeling and experiments are only briefly mentioned and only where required for clarification of physics issues or for interpretation of results. The existence of glide and shuffle sets of dislocation positions in diamond cubic semiconductors introduces still more complexity with regard to the role of core mechanisms in dislocation motion. Plasticity behavior of BCC metals is controlled, to a large extent, by the motion of screw dislocations.
Fatigue is a dominant failure mechanism of several engineering components. One technique for increasing the fatigue life is by inducing surface residual stress to inhibit crack initiation. In this review, a microstructural study under various bulk (such as severe plastic deformation) and surface mechanical treatments is detailed. The effect of individual microstructural feature, residual stress, and strain hardening on mechanical properties and fatigue crack mechanisms are discussed in detail with a focus on nickel-based superalloys. Attention is given to the gradient microstructure and interface boundary behavior for the mechanical performance. It is recommended that hybrid processes, such as shot peening (SP) followed by deep cold rolling (DCR), could enhance fatigue life. The technical and scientific understanding of microstructural features delineated here could be useful for developing materials for fatigue performance.
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.
eng_Latn
129,342
This study experimentally investigated the effects of machining parameters on the built-up-layer (BUL) and built-up-edge (BUE) formation and the wear behavior of cutting tools during the machining of the AISI 310 austenitic stainless steel with titanium-carbide cutting tools. Five different cutting speeds (50, 75, 100, 125 and 150) m/min, three feed rates (0.15, 0.20 and 0.25) mm/r and two cutting depths (1.5, 2) mm were used as the cutting parameters. The highest accumulation of the BUL and the BUE was observed at a cutting speed of 50 m/min, a feed rate of 0.15 mm/r and a cutting depth of 1.5 mm.
In this work, a surface roughness analysis versus machined length of AA7050 aluminium pieces obtained by turning process has been made. The parameter selected to define the surface quality of the pieces has been the arithmetical average roughness, Ra. Its value has been analysed for a series of test-pieces obtained under different combinations of the cutting parameters values (cutting speed, feed and depth of cut). The obtained results allow affirming the Ra value, in general, has tendency to decrease when the machining length increases. Within this general tendency, Ra values increase slightly with the cutting speed and more strongly with the feed.
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.
eng_Latn
129,355
How to build a stable pipe roller design algorithm system has become the difficulty of modern steel pipe roller design. Although the theory researching cold bending forming is more now, but the theory used to guide pass design is less. This paper studied and established the new rolling process model based on spline finite strip theory. It’s good to Shape the way time and build the chain storeing deformation way Agent structure in transition region. It helped to realize intelligent single channel cold bending forming a stress and strain description. And it is usefull to establish forming theory and the parameters contact of the pass design. In a word, it provided the theory basis for the precise pass design.
In cold rolled section manufacture process,the deformation mechanism of steel strip is very complicated,so how to accurately design pass becomes the key link for manufacture.The pass design method originated from deformation theory research,at present,the great difference exists between theoretical study and pass design method,namely the current theory method can not accurately guide pass design.To add artificial intelligence method can greatly improve the above problems.Combing the characteristic finite spline method with characteristic Agent method to dispose intelligently deformation theory,on this basis,select finite spline and Agent,establish system of characteristic finite spline and characteristic Agent,and using them to product deformation analysis,the more accurate relationship between steel strip displacement and energy can be obtained,thereby the method of accurate design pass can be achieved.
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.
eng_Latn
129,369
Heat Treatment of Welds in Stainless Steel
Abstract : The study of the possibility of using rapid induction heating for heat treatment of welds in stainless steels of the martensite (4Kh13, 3Kh13) and ferrite (0Kh17T and 0Kh25T) classes was carried out with specimens cut from 2 and 4 mm strip.
Z. Pater, Lublin University of Technology, Lublin, Poland The paper describes an example of application of the helical-wedge rolling process for producing a workholding bolt. The design of this new metal forming technique is discussed and the tools used therein are described. This rolling process was numerically simulated and found to be correct. The strain and temperature distributions in the workholding bolt as well as the variation of forces and rolling moments are presented.
eng_Latn
129,406
Thermodynamic time and microstress tensor in Vakulenko's form
The significance of the concepts of thermodynamic time and microstress tensor introduced by A. A. Vakulenko for development of the theory of viscoplasticity is analyzed.
In the present work, Von Mises criterion and its distortional energy density interpretation proposed for plastic mechanics is employed to study the effect of temperature on plastic yielding behavior of metal
eng_Latn
129,428
2D and 3D Fabrication Devices: Can They Improve Spatial Reasoning Skills in Children?
The purpose of this study is to evaluate the potential benefit of two hours of activities involving 2D and 3D fabricators on the spatial reasoning skills of children in Grades 4 and 5, ages 9 to 10, from a private school in Southeast Texas. Can the introduction to hands-on activities with products created with these devices and learning about how these devices operate improve spatial reasoning skills? The research also evaluates the use of the Shapes Test as a valid measure of the spatial reasoning skills of children. The Cube Design and Spatial Memory subtests of the UNIT (Universal Nonverbal Intelligence Tests) were used for evaluating the spatial reasoning skills of the participants, based on their respected validity, along with a Shapes Test that is in development. Discussion regarding gender, language, and experiential theories of spatial reasoning skill development are included in the literature review.
A computer simulation program has been developed for the rotational molding of plastics. The predictions obtained from this program in terms of heating/cooling rates and overall cycle times have been compared with experimental molding trials with a range of plastics. It is shown that the computer model predicts accurately the real situation for a wide range of processing conditions. In particular, the program allows the effects of oven efficiency, mold material, mold wall thickness, and molded part thickness to be assessed quantitiatively. The article presents information on heat transfer coefficients that are applicable during rotational molding and typical cycle times for a wide range of process conditions. © 1992 John Wiley & Sons, Inc.
eng_Latn
129,429
Adaptability and Efficiency Comparison of the Girder Casting Method by the Slide Shuttering Forms
Taking the girder casting method by the slide shuttering forms on the passenger dedicated line of Zhengzhou-Xi'an Railway as the example,this paper introduces the features of the girder casting method by the slide shuttering forms,and expounds the structural components,working principles and application efficiency of three kinds of slide shuttering forms.
A finite 3D element model coupled with a 2D finite volume one has been developed obatained in order to study the miscrostruture evolution during the desification of a green compact obtained by powder metturgy [1]. The simulation of the process was performed on to grains considering surface diffusion of the grains, grain boundary diffusion and volume diffusion in the grains, with as source terms the radii of curvature. The stress gradients are the driving forces of sintering. The mechanical behaviour of the grains is considered as elastic in the whole temperature range of the sintering cycle.
eng_Latn
129,430
On the thermal stresses in anisotropic porous cylinders
In this paper we study the deformation of right porous cylinders subjected to a prescribed thermal field. We assume that the cylinder is filled by an inhomogeneous anisotropic porous material. In the first part of the paper we study the problem of extension-bending-torsion, when the thermal field is independent of the axial coordinate and then we study the problem of extension-bending-torsion-flexure when the thermal field is considered linear in the axial coordinate. The considered problems are reduced to some generalized plane strain problems in the cross-section of the cylinder. Our analysis shows how the considered thermal fields influence the deformation of the porous cylinders.
Abstract Ellipsometric parameters of air-solution interfaces have been calculated for formamide mixtures with aliphatic alcohols. The results permitted the calculation of the so-called principal angles (ϕ p ) and the refractive indexes of the liquid in the surface zone and their comparison with bulk refractive indexes. Conclusions have been drawn from these data concerning the structure of the interface discussed and have been confronted with the surface entropy of these systems.
eng_Latn
129,437
The gaiding significance of Deng Xiao Ping Theory to economic statistics
The paper discusses the guiding significance of Deng Xiao Ping to economic statistics and puts forward some views.
In the present work, Von Mises criterion and its distortional energy density interpretation proposed for plastic mechanics is employed to study the effect of temperature on plastic yielding behavior of metal
eng_Latn
129,438
Studies on the theory of single screw plasticating extrusion. Part I: A new experimental method for extrusion
An extruder specially designed for the study of the single-screw plasticating extrusion process was constructed. Its barrel is equipped with glass windows which are located on both sides of it so that the full process of plasticating extrusion, solid conveying, melting, and melt conveying, can be clearly observed and recorded with photos and video recordings through the transparent windows. The solid profile X/W, the velocity of the solid bed Vsz, the forming positions of the upper melt film and the melt pool, and the position at which the break-up of solid bed occurs, was easily determined with good accuracy. Many dynamic characters of the plasticating extrusion, such as the non-plug solid conveying, the process of the break-up of the solid bed and the disappearance of the, broken pieces of solid, were also observed in the experiments.
This paper discusses the project-based teaching design of Stamping Mold Design and Manufacturing in higher vocational education.The teaching is based on the typical task in real working environment,emphasizes the interaction between the teachers and the students,pays attention to the teacher's leading function and the student's participation.Teachers should construct the teaching contents according to the logic relation of work process,and put forward an open and whole assessment system.
eng_Latn
129,445
Shear Band Development in a Viscoplastic Cylinder
We study the development of shear bands in a viscoplastic hollow circular cylinder containing two elliptical voids on a radial line and located symmetrically about the center. The material of the cylinder is assumed to exhibit strain and strain-rate hardening and thermal softening. The impact loading on the inner surface of the cylinder is simulated by applying a known radial velocity to particles on the inner surface; the outer surface of the cylinder is taken to be traction free. Both of these surfaces are taken to be perfectly insulated. It is found that shear bands initiate from void tips closer to the inner surface sooner than those from the other void tips. The effect of strain-hardening is to delay the initiation of shear bands.
The present invention includes a polyvinyl acetal having a softening temperature Tg of less than 74 ° C., and at least one cyclohexanedicarboxylic acid ester as a plasticizer, a sheet containing a plasticizer. The plasticizer-containing sheets showed slight exudation tendency of plasticizers, combined may be used for the manufacture of glass and the photovoltaic module.
eng_Latn
129,455
Wear Test Of A Preselected Diamond Tool
An investigation was conducted to develop a set of criteria that would allow the typical user to preselect a diamond-turning tool for the most critical optical finishing operations. A wide variety of tools used in this study had their edge quality evaluated by Nomarski and scanning electron microscopy methods, and the diamond crystal orientation and quality were determined by Laue x-ray methods. One of the tools was subjected to a long-term machining test to evaluate the tool wear process and to correlate the wear observed with changes in the scattering properties of the surface.
PECVD deposition of thin films in RF and MW plasma. Hard ::: diamond-like carbon thin films. Transparent SiOx thin films. ::: Polycrystalline diamond.
yue_Hant
129,472
Analysis on Weld Defect of Friction Stir Welding of Aluminum alloy Plate
2A12Al and 3A21Al alloy in 6mm thickness was friction stir welded using the process of weld.The reasons for forming defects,welding speed,rotating speed and pressure of the shoulder, were analyzed. The results show that the defect formations is related to the heat input and deficiency material flow in the welding process. Insufficient heat input or deficiency material softening will result in the joint defect in the process.
Due to economic growth, the number of cars has grown rapidly and consequently traffic accidents have grown in direct ratio. This reminds us that braking device of a vehicle is an important factor to prevent traffic accidents. Aim these researches to speed and lighten the braking system of vehicles, to lengthen its durability and to shorten the stopping distance. However, it is still difficult to analyze quantitatively and clearly the reason and solution for abnormal wear of disc and pad or judder in flywheel mode. Therefore this study was carried out to presume for mutual relation of analysis condition to get the optimum temperature by two-way layout. The results shown that coefficient of determination has a fine reliability over 92.57% and temperature is made by two-way layout.
eng_Latn
129,477
Deposition of Multi-Functional Coatings by Physical Vapour Deposition
Multifunctional coatings open new dimensions due to a combination of properties like high friction and wear resistance, electrical attributes, heat or corrosion protection in one system. In this study multifunctional coatings for in-situ temperature measurements on cutting inserts as well as multilayer coatings have been investigated. Corresponding metallurgical analyses together with mechanical tests are presented.
It is found that a spurious leakage path from the emitter to the collector of a lateral p-n-p or a trench-defined n-p-n device may be induced by the applied collector voltage. This voltage influences the surface potential at the emitter-base junction through the charging of the polyimide used as interlevel dielectric or as trench fill, respectively. A simple model of the effect is developed, and several successful process features are discussed. >
eng_Latn
129,478
Effect of novel hybrid texture tool on turning process performance in MQL machining of Inconel 718 superalloy
ABSTRACTHigher cutting zone temperatures are responsible for poor turning process performance during dry machining of Inconel 718 material. In the present work, a novel hybrid surface texture tool ...
Summary In the pilot study, a new geomodeling technology is presented for developing 3D heterogonous geomodels for Athabasca McMurray (MCMR) oil sands. The geomodels were used to simulate SAGD thermal recovery. Both conventional SAGD completions and SAGD with ICD completions were tested. The simulation results show that for a heterogeneous Athabasca McMurray oil sand reservoir, the ICD completion technology enhances oil production and reduces steam consumption. As a result, the economics of SAGD recovery from the heterogeneous sands is improved.
eng_Latn
129,480
Surface Finish Study of Hard Milling 45 Steel with PCBN Tool
Experimental study on surface finish of high speed mill of hardened 45 steel was carried out with PCBN tool. Cutting parameters studied include different cutting depth, cutting speed and feeding speed. Surface finish after cutting were measured and compared with that of grinding. Experimental results showed that for high speed milling of hardened 45 steel, the surface finish can be very fine, different cutting parameters all have explicit effect on surface finish.
By referring to Xinsteel Company's experience, and taking into account the current situation of SISG, the manual spray-lining of the No.5 B.F. at SISG was completed successfully. And, by properly allocating the blowing-in materials and making a proper transition from the blast operation to the loading of the follow-up materials, the production capacity of the furnace was fully resumed the next day after the blowing-in.
eng_Latn
129,485
Cold Pressing Procedure Influence on Superconducting Properties of Multi-filamentary Bi2223/Ag Tape
During production of multi-filamentary Bi2223/Ag superconducting tape, annealing-cold pres- sing-annealing procedure is adopted. Pressure, pressing speed, friction coefficient and feed is acted as apprais- ing target for studying, designed test projects by orthogonality. The results exhibited that influence of friction coefficient on the tape critical current Ic valve is very notable, the effect of pressure and feed is inferior, and the influence of pressing speed on the Ic valve is least.
Objective ::: The main aim was to evaluate the effect of postponing the curing of the adhesive layer until the first layer of composite resin is applied—hereby oxygen-inhibited layer (OIL) formation and its detrimental effect on the degree of conversion (DC) of self-etch adhesives should be prevented. For this purpose, the degree of conversion and shear bond strength of four current market self-etch adhesives were evaluated, assessing the effect of curing the adhesives anaerobically and then under two different thicknesses of composite resin, and compare this to the samples cured alone and in air.
eng_Latn
129,493
Localized plastic strain in polycrystalline materials with hole and notches
Analyzed numerically are the localized strain of polycrystalline materials subjected to quasi-static loading. The objective is to study the peculiarities associated with the deformation process close to the stress concentrators such as holes, notches and interfaces of internal structure. Analytical results show that geometry and/or heterogeneous internal structure of material together with the action of maximum shear result in the development of a system of plastically deformed shear bands. Shears and rotations in the regions of strain localization are found to be higher than in other parts of the specimen while rotations are more sensitive to localization.
The significance of the concepts of thermodynamic time and microstress tensor introduced by A. A. Vakulenko for development of the theory of viscoplasticity is analyzed.
eng_Latn
129,499
Implementation of a Fluctuation Smoothing Production Control Policy in IBM&#8217;s 200mm Wafer Fab
Efficient operation of IBM Vermont’s 200mm semiconductor wafer fabrication facility is essential to achieve the objective of transforming the site into a world class foundry manufacturer. To that end, we develop a fluctuation smoothing for the variation of cycle time (FSVCT) production control policy capable of allowing for a diversity of cycle time commitments. The policy directs which lot should next receive processing when a tool becomes available. In the absence of a validated cycle time model for the fabricator, we obtain estimates of achievable cycle time performance in the presence of business constraints on the cycle times of certain lots via a consequence of Little’s law. The mean and variation of cycle time implications for IBM Vermont’s facility are highlighted.
Abstract Some new possibilities of using specular neutron reflection in the study of roughness and interdiffusion in thin-film structures have been proposed and tested (the use of polychromators and supermirrors, direct measurement of the thickness of nonmagnetic interdiffusion layers). A statistical roughness growth law was found to be satisfactory in the interpretation of results, the growth rate being dependent on the materials used, film deposition techniques, etc. The use of ( λ 4 , λ 2 ) -sequences is proposed to increase the sensitivity of the method to the nonmagnetic interdiffusion layer thickness.
eng_Latn
129,521
Inplementattion of Trial Lot for Flexible Base cooling
The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc.
Abstract The thermal utilization factor is calculated in diffusion approximation for a lattice of thick cylindrical fuel elements. It is shown that if the lattice is of sufficient symmetry (i.e. if identical fuel elements are placed at the vertices of a regular hexagon, square or equilateral triangle) the use of the equivalent cell method gives a good approximation even if the elements are close-packed. The solution is stated in a form which permits the introduction of non-diffusion corrections.
eng_Latn
129,526
Influence of dies type for gasket forming shape
Performance of metal gasket influenced by the final design of the forming result. Good shape of the gasket will give optimal leakage performance. It is difficult to produce good shape because of the spring back effect. In this study, we investigated the forming process of metal gasket 400MPa-mode for two types of dies which are open dies and closed dies. The finite element method employed to analyze the effect of different types of dies on the final design of the corrugated metal gasket. The simulation shows corrugated metal gasket 400MPa-mode with closed dies result in better final shape than open dies.
Three design schemes of the runner system of an injection mould for an automobile panel were simulated and optimized based on CAE technology.The optimized gating system helps to increase the quality of product and shorten the development cycle.
eng_Latn
129,532
Production of superthin tinplate by one-time rolling
The production of broad thin tinplate sheets has been introduced at OAO MMK. Experimental batches of dimensions 0.16 × 740, 0.17 × 834, 0.18 × 970, and 0.20 × 910 mm have been prepared.
The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc.
eng_Latn
129,540
Crowd-funded journalism is a novel business model in which journalists rely on micropayments from ordinary people to finance their reporting. Based on analyses of the database of Spot.us, a pioneering crowd-funded journalism website, we examine the impact of crowd-funded journalism on the news produced. We apply a uses and gratifications approach to study consumers' choices when they donate to crowd-funded journalism and find that consumers are more likely to donate to stories that provide them with practical guidance for daily living e.g., stories about public health or local city infrastructure, as opposed to stories from which they gain a general awareness of the world e.g., cultural diversity, or government and politics. We discuss the implications for the future of news.
Using an experiment and probability sample of Chicago and Los Angeles adults (N = 1211), this study tested how tweet characteristics (tone, space) and participant age (younger, middle, older) affected attitudes about tweets from a local newspaper. Results indicate that non-opinionated tweets were perceived as more useful and credible than opinionated tweets, and local tweets resulted in more engagement than national tweets. Younger participants (19–36 years) reported more positive affect, usefulness, engagement, and credibility related to tweets than did middle/older age groups. Younger participants were generally more negative about opinionated national tweets and preferred opinionated local tweets compared with middle/older groups.
Perfect Quantum Cloning Machines (QCM) would allow to use quantum nonlocality for arbitrary fast signaling. However perfect QCM cannot exist. We derive a bound on the fidelity of QCM compatible with the no-signaling constraint. This bound equals the fidelity of the Bu\v{z}ek-Hillery QCM.
eng_Latn
129,714
Running a Social-Media Newsroom: A Case Study of the Cincinnati Flying Pig Marathon
The objective of this case study was to create and execute a proactive new-media public relations plan for the 2009 Cincinnati Flying Pig Marathon. Although the economic activity surrounding this marathon has been studied by Cobb and Olberding (2008), the 11th running of the popular marathon offered a chance to launch a social-media newsroom inside the traditional media center. Social-media tools like Twitter, YouTube, blogs, Facebook, Twitpics, and other multimedia postings have revamped news forums through their immediate transmission of news while traditional media must wait until press time. Few sporting events have actively planned to use social-media platforms to create ad campaigns, generate buzz, or track digital participation for selling, marketing, and measuring various responses to the event.
Subject to file availability and provided the posting includes a prominent statement of the full bibliographical details, a copyright notice in the name of the copyright holder (Cambridge University Press or the sponsoring Society, as appropriate), and a link to the online edition of the journal at Cambridge Journals Online.
eng_Latn
129,719
Developing an Academic Image Collection with Flickr
Flickr’s potential as an academic image resource: An exploratory study
Flickr’s potential as an academic image resource: An exploratory study
eng_Latn
129,729
The source of a movement: making the case for social media as an informational source using Black Lives Matter
ABSTRACTSocial media is growing as a technological and social phenomenon, with billions of people using it every day around the world. Given its increasing ubiquity, researchers continue to seek to understand social media and its implications for the social world. Part of the growing body of scholarship on social media includes uncovering the most effective methodologies for exploration that appropriately consider differences between the technology of social media and the ways in which people use them. New directions for social media research include the use of big data and analysing the socio-technical nature of social media. Using data from an ongoing study on college Millennials that includes questions about their thoughts on the Black Lives Matter movement, the author suggests another direction for future research: studying the implications of social media as an informational source.
Help for RN to BSN online students in NS390. Sources for definitions and other background information.
eng_Latn
129,739
Using Video to Build an Organization's Identity and Brand: A Content Analysis of Nonprofit Organizations' YouTube Videos
Organizational scholarship has increasingly focused its attention to how nonprofit, for-profit, and government agencies develop their unique organizational identity through their strategic communication efforts. As social media continues to become more prominent in communication campaigns due to the high levels of public usage and public involvement with organizations on social media sites, it is important to examine these social media messages as they relate to organizational identity. YouTube videos increasingly are being used by organizations to educate and inform just as much as they are to entertain. Through a content analysis of the most viewed videos on the top 100 official nonprofit YouTube channels, this study found that nonprofit organizations primarily use their YouTube videos to inform and educate viewers about their missions, programs, and services. While the videos also occasionally discuss the organizations' advocacy, volunteering, and fundraising efforts, nonprofit organizations were not l...
This document describes the Namespace Identifier (NID) for Uniform ::: Resource Namespace (URN) resources published by the Open Mobile ::: Alliance (OMA). OMA defines and manages resources that utilize this ::: URN name model. Management activities for these and other resource ::: types are provided by the Open Mobile Naming Authority (OMNA). This ::: memo provides information for the Internet community.
kor_Hang
129,743
A guide for using social media in environmental science and a case study by the Students of SETAC
Background ::: In the past few years, the use of social media has gradually become an important part of our daily lives. While some might see this as a threat to our productivity or as a source of procrastination, social media as a whole have unquestionably changed the way in which information and knowledge disseminate in our society.
It has become an undoubtable fact that science and technology are a unity.And therefore,it is very necessary to study them as a unity.Science and technology themselves are value-neutral.But when they are abused or misused,negative effects will be exerted by the inflation of the tool rationality.As a developing socialist country,China is not independent on the rapid development and advancement of science and technology,and the most important is to follow a way of sustainable development of science and technology guided by the outlook of scientific development.
eng_Latn
129,746
Neural Mechanisms of Visual Context Processing in Healthy Adults and those with Schizophrenia
University of Minnesota Ph.D. dissertation. December 2014. Major: Neuroscience. Advisor: Cheryl A. Olman. 1 computer file (PDF); viii, 111 pages.
American government information centers need to be responsive to an increasingly customer driven information environment while ensuring the sustainability of operations. Enhanced self-service options offer one avenue for addressing both of these needs. This article presents a case study of how the US Substance Abuse and Mental Health Services Administration used extensive stakeholder research and a customer-centric design to reframe its service model by building a self-service online store that integrates access to more than 1300 behavioral health publications previously housed in two separate clearinghouses. The redesigned Substance Abuse and Mental Health Services Administration Store offers users a modern e-commerce website that not only helps customers find, order, download, and share products, but also encourages serendipitous content exploration, which has led to increased orders containing both substance abuse and mental health publications.
eng_Latn
129,752
A Deep Dive into Extreme Television Media Selection
This chapter examines the reasons behind extreme media selection under an “information search” condition. Using mainstream and extreme media content, subjects were prompted to select the media choice they believed would give them the “best information to make their political choices.” Predictors of media selection are replicated here, but Taylor turns to qualitative process tracing to study why people make their media choices and how they feel about those choices afterward. Taylor finds that people selecting into extreme media are entertainment seeking, and that subjects who viewed extreme media found it more entertaining than people who selected into mainstream television news. This chapter deepens our understanding of extreme media selection, and shows that extreme media are an extension of the “infotainment” format television.
Mobile multimedia is getting popular. It is expected that 70% of mobile Internet traffic will be video in 2013. Video traffic is so heavy that effective delivery will reduce total amount of Internet traffic as well as your communication fee. This paper argues that cross-layer design will enable the optimal QoE (Quality of Experience) and QoS (Quality of Service) controls for mobile multimedia services.
eng_Latn
129,757
Girls blog, boys post video - report
About 35 percent of teen girls online blog compared to 20 percent for boys, but 19 percent of boys post video, nearly twice the percentage for girls, according to Pew Internet study.
China&#39;s Internet police took between five and eight hours to track down the new location of Reporters Without Borders&#39; Chinese language website and block it, the media freedom group said Wednesday.
eng_Latn
129,855