Browsing by Title
Now showing items 7972-7991 of 9013
Study of the Mechanical Behavior of Lead-free Solder Joints and Its Individual Phases under Various Harsh Environments
(2021-04-27)
Solder joints provide mechanical support, electrical and thermal interconnection between packaging levels in microelectronics assembly systems. Proper functioning of these interconnections and the reliability of the ...
A Study of the Nonlinear Acoustic Response of Area-contractions and Sense-lines
(2017-12-08)
Rocket and gas turbine engine combustion instabilities, which lead to rapid engine failure through enhanced heat transfer rates and high-cycle fatigue, continue to be a serious concern for engineers. Experimental pressure ...
A study of the prediction of vibration-induced fretting corrosion in electrical contacts
(2009-12-17)
It is generally recognized that fretting corrosion is one of the major failure mechanisms in electrical contacts. The negative effects of fretting corrosion were found in many areas such as aerospace, automobile, electrical ...
A Study of the Professional Role Identities of Experienced University Instructors of English for Speakers of Other Languages
(2017-04-19)
Little is known about how experienced university instructors of ESOL in the United States construct their identities as teachers. Due to their administrative tasks and their de facto positions as a service provider to ...
A Study of the Properties That Influence Vehicle Rollover Propensity
(2005-12-15)
In this thesis, a vehicle’s load condition is varied to investigate its impact on roll stability and a stability threshold is derived empirically using vehicle simulation. A vehicle model is developed and simulated using ...
A Study of the Relationship Between Indicators of Georgia Alternative School Effectiveness and Measures of Student Success as Perceived by Alternative School Administrators
(2010-04-30)
The purpose of this study was to investigate the relationship between Georgia alternative school administrators' perceptions of student success factors and the three domains of essential elements of effective alternative ...
A Study of the Relationship between Parental Involvement and Mental Health of College Students
(2010-03-10)
The purpose of this study was to describe the characteristics of parental involvement and mental health in a sample of traditionally aged college students and investigate the variance parental involvement predicts in mental ...
A Study of the Relationship Between the Preferred Area of Clinical Practice of Registered Nurses and their Learning Style Modality Preference
(2011-04-01)
Learning styles are a major consideration in the education process. Knowledge of an individual’s learning style can be helpful in assisting the individual to be successful in educational undertakings. Nursing is a discipline ...
A Study of the Relationships Among and Between Factors Within the Workplace, Emotional Exhaustion and Turnover Intention in Professional Counselors
(2019-07-23)
The purpose of the current study was to gain an understanding of the relationships among and between factors within the workplace, emotional exhaustion, and turnover intention; specifically in mental health counseling ...
A Study of the Success and Failure of Apparel Entrepreneurs
(2008-08-15)
Anyone can be an entrepreneur, but to run a successful venture within the apparel industry may be more complex than one would believe. Planning every aspect of a business from finances to employees, down to having an exit ...
A Study of the Thermal Interactions of Sustainable Asphalt Concrete Pavements
(2013-12-04)
A study of the thermal interactions of select sustainable technologies, such as reclaimed asphalt pavements (RAP), recycled asphalt shingles (RAS), ground tire rubber (GTR), and foamed asphalt in cold recycled materials ...
Study of the Use of Employee Perception to Assess Lean Adoption Based on the Toyota Production System and Toyota Way Model in the Chinese Automobile Industry
(2019-12-09)
In the 1980’s, the world began to notice the Toyota Motor Corporation as a leader in the automotive manufacturing industry. The Toyota Production System has been researched and emulated for its business success in cost ...
A Study of the Use of Wordmapping in Ninth-Grade Remedial English Classes
(2007-12-15)
The purpose of this study is to examine the effectiveness of using wordmapping with struggling learners between the ages of 13 and 15. An experimental group (the wordmapping group) and a treated control group (the vocabulary ...
A Study of the Viability of RF MEMS for the Implementation of a Single-Chip Programmable RF Front End for Software Defined Radio Femto Cells
(2009-04-28)
The RF front end circuitry makes up over 60% of the cost of a base transceiver station (BTS, also referred as Node B in 3G networks). Included in this cost is that of the Power Amplifier unit, RF filters, and the GPS unit ...
A Study of the Vibrational Reliability Performance of Different Doped Low-Creep Lead-Free Solder Paste and Solder BGA Packages
(2015-07-31)
The growing use of smaller and more powerful electronic components in more varied and adverse environments, especially in regards to mobile consumer electronics, has created the need to better understand how recent lead-free ...
The Study of Urban Heat Islands in the Birmingham and Auburn-Opelika, Alabama Urban Areas, Using Satellite and Observational Techniques
(2014-12-10)
Urban heat islands (UHI) are created by cities because buildings, impervious surfaces, energy and transportation, and reduced amounts of evapotranspiration increase temperatures compared to their rural surroundings. Because ...
A Study of Vehicle Properties That Influence Rollover and Their Effect on Electronic Stability Controllers
(2007-12-15)
In this thesis, the vehicle properties that most influence rollover are investigated, and methods to improve stability are examined. Every year, vehicle rollover is the cause of thousands of fatalities on US highways. ...
A Study of Vibration-Induced Fretting Corrosion for Electrical Connectors
(2007-05-15)
Vibration induced fretting degradation is a widely recognized failure phenomenon. However, the basic mechanisms that control the onset and progression of such fretting behavior are not well understood and are a topic of ...
A Study of Vibration-induced Fretting Corrosion in Electrical Connectors Based on Experimental Test and FEA Simulation
(2015-09-08)
In the field of electrical contacts, vibration induced fretting corrosion is generally
recognized as one of the major failure mechanisms. Many factors affect fretting corrosion,
including the normal force and the surface ...
A Study on Forces, Tool Wear and Surface finish in Orthogonal Machining of Aluminum 6061 T6 alloy and AISI 1020 Steel with HSS and Uncoated Carbide tool inserts under different gaseous cutting environments
(2013-08-20)
The current study is a statistically designed Orthogonal tube turning experiment to evaluate different cutting environments that can be used in machining aluminum 6061 T6 alloy and AISI 1020 Steel alloy. Two different tool ...