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Articles 1621 - 1650 of 27519
Full-Text Articles in Entire DC Network
Straight Line Braking Performance Of A Road Vehicle With Non Linear Tire Stiffness Formulation, Anup Khekare
Straight Line Braking Performance Of A Road Vehicle With Non Linear Tire Stiffness Formulation, Anup Khekare
All Theses
The capability of a road vehicle equipped with an Anti-Lock Braking System (ABS) to come to a safe stop depends on factors such as dynamic force between tire and road, surface adhesion coefficient, and the vertical profile of the road. When in panic, a driver's reaction is to step hard on the brakes to make the vehicle stop as soon as possible. Although the use of modern technologies such as ABS and Electronic Stability Control (ESC) have reduced the number of accidents significantly, any further improvement in stopping distance would only complement these technologies.
Michelin has undertaken the development of …
Friction Stir Welding Process And Material Microstructure Evolution Modeling In 2000 And 5000 Series Of Aluminum Alloys, Harshavardhan Yalavarthy
Friction Stir Welding Process And Material Microstructure Evolution Modeling In 2000 And 5000 Series Of Aluminum Alloys, Harshavardhan Yalavarthy
All Theses
Interactions between the rotating and advancing pin-shaped tool (terminated at one end with a circular-cylindrical shoulder) with the clamped welding-plates and the associated material and heat transport during a Friction Stir Welding (FSW) process are studied computationally using a fully-coupled thermo-mechanical finite-element analysis. To surmount potential numerical problems associated with extensive mesh distortions/entanglement, an Arbitrary Lagrangian Eulerian (ALE) formulation was used which enabled adaptive re-meshing (to ensure the continuing presence of a high-quality mesh) while allowing full tracking of the material free surfaces. To demonstrate the utility of the present computational approach, the analysis is applied to the cases of …
Performance Of Storm Water Stage And Quality Measuring Instruemtnation Of A Small Watershed Using A Remote Monitoring Station, Rebecca Crane
Performance Of Storm Water Stage And Quality Measuring Instruemtnation Of A Small Watershed Using A Remote Monitoring Station, Rebecca Crane
All Theses
ABSTRACT
As economic development proceeds special care must be taken to preserve and sustain our water resources. Monitoring the storm water from a watershed during a rainfall event can help quantify any changes in water quantity and quality. An accurate means of measuring flow is necessary for all watershed monitoring projects. This study was conducted to analyze the performance of stage, turbidity, and temperature measuring devices in a laboratory setting as well as on Honeycutt Creek in Clemson, South Carolina.
The stage measuring devices under study include: a radar level sensor, ultrasonic transmitter, pressure transducer, and a bubbler module. A …
Thermoelastic Behavior Of A Small Bearing Cage, Eric Planting
Thermoelastic Behavior Of A Small Bearing Cage, Eric Planting
All Theses
The full field non contact measurement of objects undergoing testing is one of interest for manufacturers of parts which are graded on their longevity. Unfortunately, for homogenous small parts with irregular geometries, such as bearing cages, the solution for testing is typically to use only a FEA model and compliment the testing of the model with simply cyclically loading the sample until failure. To better understand the stresses and behavior of a small object Thermoelasticity can be employed in order to see in a full field technique what stress patterns exist and their correlation to a FEA model.
The FEA …
Analysis Of Mercury And Lead In Birds Of Prey From Gold-Mining Areas Of The Peruvian Amazon, Peggy Shrum
Analysis Of Mercury And Lead In Birds Of Prey From Gold-Mining Areas Of The Peruvian Amazon, Peggy Shrum
All Theses
This study was conducted to determine levels of lead and mercury in the raptors of the South-eastern Peruvian Amazon. The study took place within the Los Amigos Conservation Concession in Madre de Dios, Peru. Eighty-six raptors from among sixteen species were captured with Bal-Chatri traps. From each individual, feather samples were obtained for mercury analysis and blood was taken for lead analysis. Each raptor was then released without incident or injury.
Mercury amalgamation for gold extraction is widely used by small-scale, transient mining operations, which are numerous along the rivers and creeks in the tropical forests and other locations in …
The Classic Muscle Car Era, William Mckinney
The Classic Muscle Car Era, William Mckinney
All Theses
Big and bold, loud and brash, mighty and proud, the classic American muscle car is in many ways a reflection of America at a time in history when we were on top of the world and everything seemed to be going our way. This work will examine the classic muscle car era of 1964-1974, including how it started, who helped it along, what cars were involved, how it ended, and what it meant. What the future holds for a car such as a muscle car is also examined.
The Macroeconomy And Health In The United States, Elizabeth Herring
The Macroeconomy And Health In The United States, Elizabeth Herring
All Theses
The economy affects everyone as it expands and contracts. This paper will look at the effects that economic downturns have on the health of Americans. It will analyze the number of deaths per year caused by certain causes of death and determine the extent to which a downturn affects these numbers. This paper also looks at the cause and effect relationship between antidepressants and suicide. The empirical results indicate that the state of the economy affects the health of the nation.
Linguistic Analysis Of Natural Language Engineering Requirements, Carl Lamar
Linguistic Analysis Of Natural Language Engineering Requirements, Carl Lamar
All Theses
In engineering design, the needs of the customer are expressed through engineering requirement statements. These requirement statements are often expressed using natural language because they are easily created and read. However, there are several problems associated with natural language requirements including but not limited to ambiguity, incompleteness, understandability, testability and over specificity. Several representation and analysis tools have been proposed to address these problems within a requirement statement. These tools include formal languages, such as UML and SysML, requirement management tools, such as IBM Telelogic Doors, and natural language processors such as QuARS. These tools assist in the systematic elicitation …
Major Airline Pilot Hiring, Low Cost Versus Legacy, Daniel Lang
Major Airline Pilot Hiring, Low Cost Versus Legacy, Daniel Lang
Theses and Dissertations
There are 15 major airlines and 15 different types of initial pilot selection processes. Airlines generally publish low minimum application requirements in order to comply with non discrimination laws in the United States. However, most applicants will have far exceeded these minimums in order to be competitive. As airlines become more selective, their applicant pool becomes smaller resulting in a more homogenous group. Since all major airlines draw from this relatively small homogenous group, why does every airline have a different selection process? Most major airlines administer written and or computer tests, simulator evaluations, psychological tests, and aeronautical knowledge tests. …
A Case Study: Third Party Performance-Based Navigation Instrument Flight Procedure Design Regulations At The Federal Aviation Administration, The Civil Aviation Safety Authority Of Australia, And The Civil Aviation Authority Of New Zealand, Matthew Vacanti
Theses and Dissertations
The Instrument Flight Procedure (IFP) [A listing of all acronyms and definitions is provided in Appendix A] is an essential component to the aviation system. Every day and during every flight, thousands of aircraft around the world are flying instrument departure, arrival, or approach procedures (International Civil Aviation Organization, 2008). Historically, Civil Aviation Authorities (CAA) have relied on internal resources to produce and implement (develop, publish, flight inspect, perform quality assurance functions, and maintain) IFPs (Federal Aviation Administration, 2009). Today safety, access, environmental and capacity concerns have, in some cases, driven the demand for Performance-Based Navigation (PBN) IFPs beyond the …
The Differences In Levels Of Job Satisfaction Burnout And Self-Efficacy Between Correctional And Community Psychologists: The Effect Of Personality And Work Environment, Allison M. Herlickson
The Differences In Levels Of Job Satisfaction Burnout And Self-Efficacy Between Correctional And Community Psychologists: The Effect Of Personality And Work Environment, Allison M. Herlickson
Theses and Dissertations
The purpose of the current study was to expand on research regarding levels of job satisfaction, burnout, and counselor self-efficacy within the field of psychology and particularly among correctional and community psychologists; explore the differences between correctional and community psychologists specifically in relation to levels job satisfaction, burnout, and self-efficacy; and examine difference and/or similarities in work environments and personality traits of correctional psychologists and community psychologists. The instruments used to measure job satisfaction, burnout, counselor self-efficacy, work environment, and personality were the Minnesota Satisfaction Questionnaire, Maslach Burnout Inventory, Counselor Self-Estimate Inventory, Work Environment Scale-10, and the International Personality Item …
Hispanics Communication Experiences In The Organizational Setting, Nicole Abeyta
Hispanics Communication Experiences In The Organizational Setting, Nicole Abeyta
Communication ETDs
The purpose of this study is to explore the organizational communication experiences of some Hispanic employees. In this thesis, I employ a narrative analysis method, and share the interviews and standpoint of twelve Hispanic employees to help advance the understanding of how Hispanic employees feel about integrated communication practices in the workplace. I also uncover how Hispanics feel about their work environment, what type of communication practices are utilized, and how Hispanics use technology in the organizational setting. The personal experiences help establish a general understanding of the influences of Hispanic culture, language, values, beliefs, and traditions in organizations, specifically …
The Effects Of Electronic Word-Of-Mouth: An Exploratory Study., Bodi Li
The Effects Of Electronic Word-Of-Mouth: An Exploratory Study., Bodi Li
Communication ETDs
Although marketing and advertising professionals tend to believe the effectiveness of electronic word-of-mouth (eWOM), few studies have confirmed the eWOM effects. Therefore, this study conducted a test of eWOM effects in a laboratory experiment. Subjects were randomly assigned into three groups: advertising only, advertising and positive eWOM, and advertising and negative eWOM. Results showed that eWOM possesses influences on consumers attitudes and purchase intentions, however the effects of positive eWOM are very limited. Results also showed that the effects of negative eWOM carry more weight than positive eWOM. This study also uncovered the complexity of eWOM effects. It is likely …
What Do Healthcare Providers Think Of Patients Who Use The Internet?: An Exploratory Study, Matt Willis
What Do Healthcare Providers Think Of Patients Who Use The Internet?: An Exploratory Study, Matt Willis
Communication ETDs
The Internet is a technology that is influencing multiple human factors (i.e. cognitive and social). Adults who seek information on the Internet about their health conditions are becoming more common. Providers have been wary of patient information searches, fearing that, at worst, conflicting information may provoke confrontation and doubt and, at best, the information is trivial or already well known to the provider. For this exploratory study a survey was conducted that investigates trends in healthcare provider information technology use and information seeking opinions. This survey was followed by a highly structured interview of n=21 providers. The researcher shows two …
Transferability Of Simple Sequence Repeat (Ssr) Markers Developed In Litchi Chinensis To Blighia Sapida (Sapindaceae), Marius R.M. Ekué, Oliver Gailing, Reiner Finkeldey
Transferability Of Simple Sequence Repeat (Ssr) Markers Developed In Litchi Chinensis To Blighia Sapida (Sapindaceae), Marius R.M. Ekué, Oliver Gailing, Reiner Finkeldey
Michigan Tech Publications, Part 1
Ackee (Blighia sapida, Sapindaceae) is a multipurpose fruit tree species of high economic importance, native to the Guinean forests of West Africa, and belongs to the same family as that of lychee (Litchi chinensis). In this study, a set of 12 primer pairs for simple sequence repeats (SSRs) previously developed for lychee has been evaluated for polymorphism in 16 ackee trees from different populations. Seven primer pairs have been found to be transferable, and four have revealed polymorphisms. However, the average number of alleles per locus has dropped from 4.9 for lychee to 3.7 for ackee. Characterization of the four …
You've Got Your Mother's Laugh: What Bankruptcy Mediation Can Learn From The Her/History Of Divorce And Child Custody Mediation, Nancy A. Welsh
You've Got Your Mother's Laugh: What Bankruptcy Mediation Can Learn From The Her/History Of Divorce And Child Custody Mediation, Nancy A. Welsh
Faculty Scholarship
Due to our current deep economic woes, growing bankruptcy filings, and apparent legislative unwillingness to expand the number of judges, bankruptcy courts are exploring the use of mediation to help resolve adversary proceedings, negotiate elements of reorganizations, and deal with claims that cannot be heard directly in bankruptcy proceedings. In addition, mediation advocates have been consistent in urging greater use of the process to reduce debtors’ and claimants’ costs, bridge the jurisdictional and standing challenges that bankruptcies can pose, and offer claimants the opportunity to be heard and determine their own resolution of claims. At this point, the relatively few …
Subsidiary Perspective Of Coordination Mechanisms On Localization Decisions, Working Environment, Marketing Engagement And New Product Performance, Firmanzah Firmanzah
Subsidiary Perspective Of Coordination Mechanisms On Localization Decisions, Working Environment, Marketing Engagement And New Product Performance, Firmanzah Firmanzah
Makara Human Behavior Studies in Asia
New product launching (NPL) to the local market by subsidiary managers is a strategic activity, which requires organizational supports from MNC global network. The NPL activity is marked by high level of uncertainty, risk, and market failure. Thus, a headquarter needs to integrate the subsidiary NPL into the global strategy. At the same time, subsidiary managers need to have a certain level of autonomy to ensure that the launching program is adapted to the local specificities. These two pressures have forced the subsidiary managers to take up the roles of ‘boundary spanners’. Good working environment between subsidiaries’ managers and headquarter …
Facing Defacement: Factors Influencing Indigenous Patients In Provider-Patient Communication In Baja Verapaz, Guatemala, Laura L. Burton
Facing Defacement: Factors Influencing Indigenous Patients In Provider-Patient Communication In Baja Verapaz, Guatemala, Laura L. Burton
Communication ETDs
The purpose of this ethnographic research was to explain the factors influencing Achi patients in provider-patient interactions in Baja Verapaz, Guatemala. I explored the complex intercultural challenges influencing the interactions between biomedically-trained providers and indigenous patients. Data collection involved participant observation and twenty-four informal field interviews in Guatemala. I utilized thematic analysis to identify and understand the factors influencing Achi patients when interacting with health care providers. Findings reveal that the Achi patients are influenced in provider-patient interactions by the reciprocal interaction among four major factors: environment, beliefs, emotional effect, and experiences. In addition, subthemes were identified for each of …
Adsorptive Removal Of Nitrogen From Coal-Based Needle Coke Feedstocks Using Activated Carbon, Sreeja Madala
Adsorptive Removal Of Nitrogen From Coal-Based Needle Coke Feedstocks Using Activated Carbon, Sreeja Madala
Graduate Theses, Dissertations, and Problem Reports (ETD)
A low percentage of nitrogen in needle coke feedstocks is desired for the reduction of puffing during the process of graphitization of needle coke. The purpose of the present study is to investigate the removal of nitrogen species from a coal-based needle coke feedstock, when treated with both commercial activated carbon, Nuchar SA 20 and "coal-derived" activated carbon, WVUAC 900-15. Koppers coal tar distillate (CTD), which has 1.1% wt starting nitrogen content, is selected as the needle coke feedstock. A series of experiments was performed to establish a standard procedure for the removal of nitrogen species. Using the established experimental …
Implementing Energy Release Rate Calculations Into The Lamodel Program, Morgan M. Sears
Implementing Energy Release Rate Calculations Into The Lamodel Program, Morgan M. Sears
Graduate Theses, Dissertations, and Problem Reports (ETD)
Mining activity at increasingly greater depths and the tragedy at Crandall Canyon that claimed the lives of nine miners have forced coal bump research to the forefront of mining engineering research. Near the end of the last century, the National Institute for Occupational Safety and Health (NIOSH) and the former U.S. Bureau of Mines investigated the mechanics, conditions, and mitigation of coal bumps. Unfortunately, the exact mechanics of coal bumps is still not fully understood. Following this period, research into coal bumps in the United States has been limited.;The Energy Release Rate (ERR) calculation quantifies the dissipation ("release") of the …
Design Of A Test Stand For Alternate Fuel And Ignition Systems Testing, Patrick Wildfire
Design Of A Test Stand For Alternate Fuel And Ignition Systems Testing, Patrick Wildfire
Graduate Theses, Dissertations, and Problem Reports (ETD)
There is a growing interest in improving engine versatility through the capacity to run on more than one fuel. To aid in this effort, ongoing research is being conducted to investigate a novel system using microwave plasma ignition designed with the goal of allowing spark ignited engines to run on multiple fuels. To accomplish the testing of this system, it was necessary to design and fabricate a test stand including an engine and instrumentation capable of measuring the performance of the ignition system within the environment of a running engine, and capable of testing this system on multiple fuels. It …
A Reconceptualized Analysis Of The West Virginia 4-H Global Education Program: Attitudes Of Agents, Specialists, And Volunteers, Ahmed M. Abdulai
A Reconceptualized Analysis Of The West Virginia 4-H Global Education Program: Attitudes Of Agents, Specialists, And Volunteers, Ahmed M. Abdulai
Graduate Theses, Dissertations, and Problem Reports (ETD)
Global Education has been and continues to be an important aspect of American higher educational curriculum. Its importance is evidenced not only at the formal educational sector, but also within youth development programs like the West Virginia 4-H program.;The author contends that, the importance of global education is more relevant in the 21st century due to the increasing interdependence of the global world. The study looks at the perceived attitudes of 4-H Agents, Specialists, and Volunteers towards global education and how such an educational program affects the youth development of the 4-Her.;The present study, which is partly based on John …
Initiating A Practice Change: Prescribing Probiotics Concurrently With Antibiotic Therapy, Patty Hermosilla
Initiating A Practice Change: Prescribing Probiotics Concurrently With Antibiotic Therapy, Patty Hermosilla
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background and significance. Over half of all hospitalized patients are treated with antibiotics and antibiotic use is rising. There has been a 500% increase in antibiotic associated diarrhea, a common side effect of antibiotic use, in the last decade. Probiotics are a safe and cost effective measure to prevent or reduce antibiotic associated diarrhea.;Problem statement. The majority of patients admitted to the medical intensive care unit receive antibiotic therapy; however, few are prescribed probiotic therapy concurrent with antibiotics.;Project design. Education was provided to health care providers regarding antibiotic associated diarrhea and the benefits of probiotic use. A guideline was developed …
The Evaluation Of A Nutrition Education And Fitness Program With A Contest Component Among College Students Using The Re-Aim Framework, Michelle L. Bartlett
The Evaluation Of A Nutrition Education And Fitness Program With A Contest Component Among College Students Using The Re-Aim Framework, Michelle L. Bartlett
Graduate Theses, Dissertations, and Problem Reports (ETD)
Only recently have practitioners and researchers targeted the population of college students in studying interventions aimed at increasing health behaviors. There is evidence that a proportion of college students are making attempts on their own to remedy weight gain and poor physical fitness with little or no guidance, which is reflected in consistently rising obesity rates in this population. Thus, the need for organized and effective interventions is illustrated. The impact of an intervention can be determined through evaluation research. Although the RE-AIM model has not yet been used to evaluate single-site, university-sponsored, college-student weight-loss/fitness programs, it provided a useful …
Mechanism By Which Dietary Polyunsaturated Fat Regulates Lipogenic Gene Expression, Alison Bloom Kohan
Mechanism By Which Dietary Polyunsaturated Fat Regulates Lipogenic Gene Expression, Alison Bloom Kohan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Primary hepatocytes treated with non-esterified polyunsaturated fatty acids have been used as a model for describing the inhibitory effects of dietary polyunsaturated fats on lipogenic gene expression. This model resembles starvation or uncontrolled diabetes but not dietary fat ingestion, which is delivered to liver via chylomicron remnants. Chylomicron remnants enriched with polyunsaturated fatty acids stimulate a unique pattern of intracellular signaling. These remnants enhance p38 mitogen activated protein kinase (MAPK) activity but do not inhibit insulin signaling or induce extracellular-signal related kinase (ERK) or AMP-activated protein kinase (AMPK) activation as do non-esterified polyunsaturated fatty acids. Polyunsaturated fatty acids-enriched remnants and …
Population Ecology, Residents' Attitudes, Hunter Success, Economic Impact, Modeling Management Options And Retention Time Of Telazol Of West Virginia Black Bears, Christopher W. Ryan
Population Ecology, Residents' Attitudes, Hunter Success, Economic Impact, Modeling Management Options And Retention Time Of Telazol Of West Virginia Black Bears, Christopher W. Ryan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The West Virginia Black Bear Research Project (WVBBRP) was initiated in 1972 to investigate population parameters, growth rates, home ranges, and habitat uses of a declining American black bear (Ursus americanus ) population. The West Virginia Division of Natural Resources (WVDNR) continued to monitor the black bear population and increased monitoring efforts and sample sizes in the 1990's as the black bear population increased in size and expanded its range. As part of the WVBBRP, we investigated black bear population ecology. Our objectives were to estimate reproductive rates, estimate survival and cause-specific mortality rates, examine effects of special hunting seasons …
Cryptic Subtelomeric Rearrangements And Studies Of Telomere Length, Jasen Lee Wise
Cryptic Subtelomeric Rearrangements And Studies Of Telomere Length, Jasen Lee Wise
Graduate Theses, Dissertations, and Problem Reports (ETD)
Study One. An estimated five percent of individuals with unexplained mental retardation (MR) have chromosomally unbalanced subtelomere regions. Around half of these individuals inherited the imbalance from a parent with a balanced rearrangement. The frequency of carriers for cryptic balanced translocations is unknown. To determine this frequency, blood samples received from 565 out of 978 phenotypically normal, unrelated individuals were examined using fluorescent in situ hybridization (FISH) probes to analyze all subtelomere regions. No balanced subtelomeric rearrangements were identified. The frequency of balanced cryptic translocations in the general population was estimated to be 1/8,000 from the literature. However, three females …
Optimization Of A Retrofit Urea-Scr System, Clinton R. Bedick
Optimization Of A Retrofit Urea-Scr System, Clinton R. Bedick
Graduate Theses, Dissertations, and Problem Reports (ETD)
Oxides of nitrogen (NOx) emissions from legacy diesel engines are often many times over currently mandated standards, contributing significantly to degradation of air quality and negative environmental impact. A retrofit urea-SCR (selective catalytic reduction) aftertreatment system offers a viable solution for reducing NOx emissions from older diesel engines. A stand-alone retrofit urea-SCR aftertreatment system was previously developed by West Virignia University (WVU) engineers, implementing a pre-SCR NOx sensor, open-loop feed-forward control, and stoichiometric NOx reduction logic. During experimental testing at WVU, the urea-SCR system demonstrated NOx reductions of 2% to 53%, depending on the test cycle. In order to optimize …
The Fearful Face And Beyond: Fmri Studies Of The Human Amygdala, Jillian E. Hardee
The Fearful Face And Beyond: Fmri Studies Of The Human Amygdala, Jillian E. Hardee
Graduate Theses, Dissertations, and Problem Reports (ETD)
The amygdala has been labeled as a "detector of threat", evidenced by its heightened response to fearful faces in human neuroimaging studies. A critical element of the fearful face is an increase in eye white area, hypothesized to be crucial for the rapid detection of fear in another's face. Yet other facial expressions can also increase eye white area in a manner that is similar (a lateral shift in gaze) or identical (surprise) to fear. It is unknown if the amygdala can differentiate between these types of increases in eye white area and those that are specifically associated with fear …
Soldiers And Stereotypes: Mountaineers, Cultural Identity, And World War Ii, C. Belmont Keeney
Soldiers And Stereotypes: Mountaineers, Cultural Identity, And World War Ii, C. Belmont Keeney
Graduate Theses, Dissertations, and Problem Reports (ETD)
To what extent are Appalachian stereotypes true and how much is pure fabrication? This study seeks to answer this question by examining the experiences of West Virginia soldiers during World War II. Appalachian hillbillies, believed to be culturally backward, uncivilized, isolated, and prone to violence, were often sent straight to the infantry because it was believed that their wild mountain heritage made them inherently better fighters. Using interviews, letters, and a collection of over 1,200 firsthand written accounts of Appalachian veterans collected by West Virginia University in 1946, this study traces the evolution of the cultural and individual identities of …