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Development Of The West Virginia University Small Microgravity Research Facility (Wvu Smirf), Kyle G. Phillips
Development Of The West Virginia University Small Microgravity Research Facility (Wvu Smirf), Kyle G. Phillips
Graduate Theses, Dissertations, and Problem Reports (ETD)
West Virginia University (WVU) has created the Small Microgravity Research Facility (SMiRF) drop tower through a WVU Research Corporation Program to Stimulate Competitive Research (PSCoR) grant on its campus to increase direct access to inexpensive and repeatable reduced gravity research. In short, a drop tower is a tall structure from which experimental payloads are dropped, in a controlled environment, and experience reduced gravity or microgravity (i.e. "weightlessness") during free fall. Currently, there are several methods for conducting scientific research in microgravity including drop towers, parabolic flights, sounding rockets, suborbital flights, NanoSats, CubeSats, full-sized satellites, manned orbital flight, and the International …
Ion Temperatures In Earth's Inner Magnetosphere: Ring Current Dynamics, Transient Effects, And Data-Model Comparisons, Justin G. Elfritz
Ion Temperatures In Earth's Inner Magnetosphere: Ring Current Dynamics, Transient Effects, And Data-Model Comparisons, Justin G. Elfritz
Graduate Theses, Dissertations, and Problem Reports (ETD)
Earth's magnetosphere is an inherently complex, strongly nonlinear system with intrinsic coupling between internal and external drivers. In general, magnetospheric systems can be understood as a balance between multiple regions which all exhibit unique plasma properties. The feedback processes between each region depend on geomagnetic activity levels and the preceding states of the solar wind and the respective magnetospheric regions. Of particular interest is understanding how ion temperatures evolve during geomagnetically active periods, and also understanding the space weather impacts of hot ion populations injected during such periods. Dynamic, spatiotemporally resolved ion temperature boundary conditions have been implemented into the …
Preservice Physical Educators' Stress And Instructional Effectiveness, Jingyang Huang
Preservice Physical Educators' Stress And Instructional Effectiveness, Jingyang Huang
Graduate Theses, Dissertations, and Problem Reports (ETD)
The primary purpose of this study was to determine the relationship between preservice physical educators' stress and their instructional effectiveness. The study sample included 25 preservice physical educators in the Middle School Block and Secondary School Block in a Physical Education Teacher Education program located in the mid-Atlantic area of the United States. A demographic questionnaire, the Teacher Stress Scale, the West Virginia University Teaching Evaluation System, and interview questions were administered during preservice physical educators' practice teaching period. The results indicated that preservice physical educators' stress was negatively correlated with instructional effectiveness. Curriculum model and noise were reported as …
Does Cultural Self-Awareness Alter Instructional Design Decisions?, Antoinette Hando
Does Cultural Self-Awareness Alter Instructional Design Decisions?, Antoinette Hando
Graduate Theses, Dissertations, and Problem Reports (ETD)
This project looks at the influence background culture has on instructional designers. Current research supports the hypothesis that background culture affects learning preferences. This study approaches cultural background from the instructional designers' point of view. Using Hofstede's Model of Cultural Dimensions as a tool for understanding how culture influences our expectations in a classroom setting a survey was sent to subjects from various cultures to see if their design style correlated to the ranking given by Hofstede. The results were that background culture influenced the experiences of the participants and could be related to Hofstede's Model of Cultural Dimensions.
Development Of A Remote Laboratory With The Integration Of Cloud Applications, Jeremy Thompson
Development Of A Remote Laboratory With The Integration Of Cloud Applications, Jeremy Thompson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Distance learning has been a mode of education since its inception at Pennsylvania State University in 1892. What started as a simple correspondence course has blossomed into a globally accepted method of education. The need for remote laboratories is growing as more lab-intensive programs of study are searching for a distance learning alternative. The goal of this research is to establish the foundation of a remote laboratory in the Mechanical and Aerospace Engineering Department at West Virginia University. The main objectives are to develop simple, easy-to-use graphical user interfaces to enhance the understanding of several concepts presented in the MAE …
Faster Evolutionary Multi-Objective Optimization Via Gale, The Geometric Active Learner, Joseph Krall
Faster Evolutionary Multi-Objective Optimization Via Gale, The Geometric Active Learner, Joseph Krall
Graduate Theses, Dissertations, and Problem Reports (ETD)
Goal optimization has long been a topic of great interest in computer science. The literature contains many thousands of papers that discuss methods for the search of optimal solutions to complex problems. In the case of multi-objective optimization, such a search yields iteratively improved approximations to the Pareto frontier, i.e. the set of best solutions contained along a trade-off curve of competing objectives.;To approximate the Pareto frontier, one method that is ubiquitous throughout the field of optimization is stochastic search. Stochastic search engines explore solution spaces by randomly mutating candidate guesses to generate new solutions. This mutation policy is employed …
Country Schoolgirls: A Study Of Rural Women And The Rise Of Public Education, 1820-1914, Allyson Perry
Country Schoolgirls: A Study Of Rural Women And The Rise Of Public Education, 1820-1914, Allyson Perry
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis explores the rise of public education, its influence on rural society, and the ways that farmwomen used schooling for a variety of purposes. Throughout the nineteenth century, more opportunities for women appeared as communities in the mountainous areas of West Virginia and Pennsylvania established free, public schools. With these social developments came an attempt to balance the public's perception of women's role in rural society. Administrators charged with implementing state-wide, public education had to set boundaries on women's advancement as they reacted to the public's changing ideas of women's proper role. Confronting these ideas set forth by administrators, …
Poroelastic Effect On Gas Transport And Storage In Organic Rich Shale Reservoir, Bahiya Jabbar
Poroelastic Effect On Gas Transport And Storage In Organic Rich Shale Reservoir, Bahiya Jabbar
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study sheds the light on the effect of poroelastic properties of the shale matrix on storage and transportation mechanism in multi-scale organic rich shale gas reservoirs. Over last decades shale gas research widen significantly, however, the behavior and properties of shale formation still need more investigation. Most of our knowledge regarding poroelsctic behavior of shale matrix comes from studies on coalbed methane reservoirs, which is somewhat similar to shale gas reservoirs. The poroelastic effect of coal and shale is a strong function of total organic content (TOC) of these sedimentary rocks. Coalbed methane reservoirs have more than 50% TOC, …
Crowdsourcing Traffic Data For Travel Time Estimation, Chanukya Chowdary Gadde
Crowdsourcing Traffic Data For Travel Time Estimation, Chanukya Chowdary Gadde
Graduate Theses, Dissertations, and Problem Reports (ETD)
Travel time estimation is a fundamental measure used in routing and navigation applications, in particular in emerging intelligent transportation systems (ITS). For example, many users may prefer the fastest route to their destination and would rely on real-time predicted travel times. It also helps real-time traffic management and traffic light control. Accurate estimation of travel time requires collecting a lot of real-time data from road networks. This data can be collected using a wide variety of sources like inductive loop detectors, video cameras, radio frequency identification (RFID) transponders etc. But these systems include deployment of infrastructure which has some limitations …
Modeling And Analysis Of Distribution System With Demand Response And Electric Vehicles In Personal And Public Transportation, Venkata Satish Kasani
Modeling And Analysis Of Distribution System With Demand Response And Electric Vehicles In Personal And Public Transportation, Venkata Satish Kasani
Graduate Theses, Dissertations, and Problem Reports (ETD)
The government policies and cost benefits led to the surge in penetration of Plug-in Hybrid Electric Vehicles (PHEVs) and Battery Electric Vehicles (BEVs) into both public and private sectors, challenging the electric grid's potential to maintain its stability and efficiently serve the purpose. The penetration of PHEVs brings technological advancements and environmental benefits to the traditional transportation and electrical power systems. Designing of appropriate charging methods to satisfy PHEV owners helps to improve system performance and avoid transmission and distribution system expansion.;The primary objective of this thesis is to model a coordinated charging algorithm to charge maximum number of PHEVs …
From Graph Coloring To Receptor Clustering, Ye Chen
From Graph Coloring To Receptor Clustering, Ye Chen
Graduate Theses, Dissertations, and Problem Reports (ETD)
1. Hued colorings for planar graphs, graphs of higher genus and K4-minor free graphs.;For integers k, r > 0, a (k,r) -coloring of a graph G is a proper coloring of the vertices of G with k colors such that every vertex v of degree d(v) is adjacent to vertices with at least min{lcub}d(v) ,r{rcub} different colors. The r-hued chromatic number, denoted by Xr (G), is the smallest integer k for which a graph G has a ( k,r)-coloring. A list assignment L of G is a function that assigns to every vertex v of G a set L(v) of positive …
Selected Solo Piano Works By Contemporary Malaysian Composers: An Analysis, Khe Sin Khoo
Selected Solo Piano Works By Contemporary Malaysian Composers: An Analysis, Khe Sin Khoo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Although the influence of Western art music has been present in Malaysia for a little short of two centuries, much of the scholarly research, both locally and globally, has shown more interest in traditional music and popular music. As such, this study serves as an introduction to the art-music scene in Malaysia, particularly through the analyses of selected solo piano works by three contemporary Malaysian composers---namely, Chong Lim Ng's A Distant Voice of the Rain Forest (Fragments from "Rimba"...), Adeline Wong's Paces for solo piano and electronics, and Kah Hoe Yii's My Spirit is Dancing!.;These works show that Malaysian composers …
A Force Sensor Array For Space Applications, Timothy L. Weadon
A Force Sensor Array For Space Applications, Timothy L. Weadon
Graduate Theses, Dissertations, and Problem Reports (ETD)
The need for force feedback and spatial awareness of contact in harsh environment applications, such as space servicing, has been unsatisfied due to the inability of current sensor technology to resist environmental effects. In this work, capacitive sensors based on a porous polymer-ceramic composite structure were evaluated for potential use in future operations within robotic end-effectors, withstanding temperatures ranging from -80 °C to 120 °C and forces up to 350 kPa. A thin-film design is utilized to allow for ease of embedding, allowing sensors to be implemented into exciting robotic hardware with minimal intrusion, and protecting sensors from electron bombardment, …
Group Iii-Nitride Devices And Applications, Joshua L. Justice
Group Iii-Nitride Devices And Applications, Joshua L. Justice
Graduate Theses, Dissertations, and Problem Reports (ETD)
The group III-nitride system of materials has had considerable commercial success in recent years in the solid state lighting (SSL) and power electronics markets. The need for high efficient general lighting applications has driven research into InGaN based blue light emitting diodes (LEDs), and demand for more efficient power electronics for telecommunications has driven research into AlGaN based high electron mobility transistors (HEMTs). However, the group III-nitrides material properties make them attractive for several other applications that have not received as much attention. This work focuses on developing group III-nitride based devices for novel applications.;GaN is a robust, chemically inert, …
Non-Intrusive Anomaly Detection For Encrypted Networks, Luis C. Armendariz Jr.
Non-Intrusive Anomaly Detection For Encrypted Networks, Luis C. Armendariz Jr.
Graduate Theses, Dissertations, and Problem Reports (ETD)
The use of encryption is steadily increasing. Packet payloads that are encrypted are becoming increasingly difficult to analyze using IDSs. This investigation uses a new non-intrusive IDS approach to detect network intrusions using a K-Means clustering methodology. It was found that this approach was able to detect many intrusions for these datasets while maintaining the encrypted confidentiality of packet information. This work utilized the KDD '99 and NSL-KDD evaluation datasets for testing.
Implications Of Interactions Among Society, Education And Technology: A Comparison Of Multiple Linear Regression And Multilevel Modeling In Mathematics Achievement Analyses, Pamela Rose Deering
Implications Of Interactions Among Society, Education And Technology: A Comparison Of Multiple Linear Regression And Multilevel Modeling In Mathematics Achievement Analyses, Pamela Rose Deering
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research compares and contrasts two approaches to predictive analysis of three years' of school district data to investigate relationships between student and teacher characteristics and math achievement as measured by the state-mandated Maryland School Assessment mathematics exam. The sample for the study consisted of 3,514 students taught by 99 teachers in a small Appalachian school district in western Maryland. The first analytic approach, standard multiple linear regression, produced a model in which each of the predictors is statistically significant: student gender, prior math achievement, student performance on school district mathematics benchmark exams, teacher years of experience, and advanced teacher …
Sampling The Radio Transient Universe: Studies Of Pulsars And The Search For Extraterrestrial Intelligence, Jayanth Chennamangalam
Sampling The Radio Transient Universe: Studies Of Pulsars And The Search For Extraterrestrial Intelligence, Jayanth Chennamangalam
Graduate Theses, Dissertations, and Problem Reports (ETD)
The transient radio universe is a relatively unexplored area of astronomy, offering a variety of phenomena, from solar and Jovian bursts, to flare stars, pulsars, and bursts of Galactic and potentially even cosmological origin. Among these, perhaps the most widely studied radio transients, pulsars are fast-spinning neutron stars that emit radio beams from their magnetic poles. In spite of over 40 years of research on pulsars, we have more questions than answers on these exotic compact objects, chief among them the nature of their emission mechanism. Nevertheless, the wealth of phenomena exhibited by pulsars make them one of the most …
Early School Leaving: A Narrative Inquiry Of The School Dropout, John E. Stallings Jr.
Early School Leaving: A Narrative Inquiry Of The School Dropout, John E. Stallings Jr.
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the field of education, student performance has become an integral component when determining the effectiveness of schools, levels of student engagement, and a measure of the learning that is occurring in schools. In particular, certain criteria have been identified as appropriate measures for monitoring the effectiveness of school systems, individual school programs, and teacher merit. Included in these specific areas to be monitored are graduation and or dropout rates. While these have become a part of the major focus of those monitoring the effectiveness of schools across the country, it seems that little has been done to investigate what …
Integrating The Lamodel And Armps Programs (Armps-Lam), Peng Zhang
Integrating The Lamodel And Armps Programs (Armps-Lam), Peng Zhang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Over the years, the various versions of the ARMPS and the LaModel programs have been widely used in the U.S. coal fields. In a recent deep-cover database analysis, LaModel was found to more accurately classify a small deep-cover database than ARMPS. However, the LaModel analysis of each case study required several days to complete, as compared to a requirement of only several minutes for each ARMPS analysis. If the LaModel analysis of an ARMPS-type mine design, could be made as easily and quickly as an ARMPS analysis and calibrated against a large database, the potential exists to improve the quality …
Analysis And Interpretation Of Complex Biological Signal Transduction Networks, Holly N. Currie
Analysis And Interpretation Of Complex Biological Signal Transduction Networks, Holly N. Currie
Graduate Theses, Dissertations, and Problem Reports (ETD)
Cellular signaling is a complex system of biological communication that coordinates cellular activities via biochemical reactions. The passing of an extracellular signal across a cell membrane to intracellular signaling molecules is referred to as signal transduction. Signals transduced across a cell's membrane influence its function, and allow the cell to respond to its local environment. Within the cell, proteins are key responders to, and carriers of, the transduced signal. A class of proteins called kinases mediate most of the signal transduction in eukaryotic cells by catalyzing the phosphorylation of substrate proteins. The post-translational modification of proteins by phosphorylation regulates protein …
Creating Liminal Spaces, Silas Brook Spellman
Creating Liminal Spaces, Silas Brook Spellman
Graduate Theses, Dissertations, and Problem Reports (ETD)
The work described in this thesis was completed as partial fulfillment for the Master of Fine Arts degree, West Virginia University. I describe how I work with a variety of media, tools, and materials to search for expression within the painting of the liminal space between the real and the imaginary. This document contains a description of the flexibility of the work to be displayed in various and transient formats. It also discusses how I encourage viewer participation on several levels and can place the viewer between the space represented in my art and the world we experience and perceive …
A Study Of Dynamical And Emission Variabilities In Pulsars, Andrew D. Seymour
A Study Of Dynamical And Emission Variabilities In Pulsars, Andrew D. Seymour
Graduate Theses, Dissertations, and Problem Reports (ETD)
Pulsars are rapidly rotating highly magnetized neutron stars thought to have been formed in the core-collapse supernova of massive stars. Ever since their discovery, pulsars have shown complex behaviors. This is certainly true for their emission mechanism, which is still not fully understood. This is primarily because of the abrupt changes that appear in the pulse profile. Recent discoveries have shown that these emission changes effect the spin dynamics, particularly the spin-down rate. This indicates that pulsar emissions are even more complex than previously thought. The goal of this thesis is to apply new analysis techniques to help shed light …
Flipping The Classroom In College Algebra: A Design And Development Study, Lori Ogden
Flipping The Classroom In College Algebra: A Design And Development Study, Lori Ogden
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation documents the development of a flipped classroom teaching model for teaching college algebra. The model supports the use of multiple teaching strategies including video lectures for students to view as homework, outside of class. A design and development framework is used to describe the design decisions, model implementation, and evaluation of the model across three deliveries, or case studies, of a college algebra course from fall of 2012 through fall of 2013. Design decisions included course sequence and instructional materials. Model implementation described the teaching and assessment strategies throughout each unit of material taught in the course and …
Investigation Of Emission Characteristics During Low Temperature Combustion Using Multivariate Adaptive Regression Splines, Mario Velardi
Investigation Of Emission Characteristics During Low Temperature Combustion Using Multivariate Adaptive Regression Splines, Mario Velardi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Exhaust emissions from diesel engines operating in a low temperature combustion (LTC) regime are significantly affected by fuel composition and injection strategy. The starting point of this study is a collection of data correlating injection system parameters, and fuel characteristics, to response parameters such as engine-out emissions (oxides of nitrogen (NOx), total particulate matter (TPM), carbon monoxide (CO), hydrocarbons (HC)) and brake thermal efficiency (BTE).;The purpose of this work is to develop a statistical analysis tool to assist the emission analyst in modeling problems in which a response of interest is influenced by several variables and the objective is to …
Understanding Chinese American Parents: The Interplay Of Chinese Tradition And Early Childhood Music Education In The United States, Juan Julie Yu
Understanding Chinese American Parents: The Interplay Of Chinese Tradition And Early Childhood Music Education In The United States, Juan Julie Yu
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study is to examine the acculturation experience of first-generation Chinese American parents and the values that inform their expectations for their children's early childhood music education. A primary goal of this research is to gain a deeper understanding of the interplay of Chinese traditional culture and early childhood music education in the United States. The six participants for this study were first-generation Chinese American immigrants who at the time of the interviews had children under age eight and who resided in Philadelphia. As a qualitative multiple-case study, the primary data for this study were six sets …
Vibration Attenuation Of Composite Moving Beams Using Active Vibration Control Techniques, Gouthami Polina
Vibration Attenuation Of Composite Moving Beams Using Active Vibration Control Techniques, Gouthami Polina
Graduate Theses, Dissertations, and Problem Reports (ETD)
Applications of axially-moving beams are found in earthquake engineering, robotic arms, conveyor belts, etc. Previous studies have shown that the amplitude of lateral vibration of moving beams is 40 percent higher than that of non moving beams. In this research a numerical model based on the finite element method is done to reduce the excess vibrations caused by the axial oscillation of the beam. A computer code is written in MATLAB to accomplish this.;The vibrational amplitude of composite moving beams is reduced by means of an active vibration control technique that employs the piezoelectric effect. Piezoelectric sensors and actuators are …
Application Of Nano Fluids In Changing Reservoir Rock And Fluid Properties For Enhanced Oil Recovery, Mohammad Ehtemam Haghighi
Application Of Nano Fluids In Changing Reservoir Rock And Fluid Properties For Enhanced Oil Recovery, Mohammad Ehtemam Haghighi
Graduate Theses, Dissertations, and Problem Reports (ETD)
In conventional oil reservoirs after drilling a well, the hydrocarbon starts to produce by the natural force of the reservoir. After a period of production the reservoir energy declines and the secondary recovery methods are used to keep the production rate constant. The most common secondary method is water flooding in which by injecting water into the reservoir, trapped oil is pushed toward the producing wells. Water flooding is not a long term method for producing oil and as soon as the water finds its path to the producers, water cut goes up and injection is not economical anymore. Therefore …
Modeling And Tuning Of Energy Harvesting Device Using Piezoelectric Cantilever Array, Yuejuan Li
Modeling And Tuning Of Energy Harvesting Device Using Piezoelectric Cantilever Array, Yuejuan Li
Graduate Theses, Dissertations, and Problem Reports (ETD)
Piezoelectric devices have been increasingly investigated as a means of converting ambient vibrations into electrical energy that can be stored and used to power other devices, such as the sensors/actuators, micro-electro-mechanical systems (MEMS) devices, and microprocessor units etc. The objective of this work was to design, fabricate, and test a piezoelectric device to harvest as much power as possible from vibration sources and effectively store the power in a battery.;The main factors determining the amount of collectable power of a single piezoelectric cantilever are its resonant frequency, operation mode and resistive load in the charging circuit. A proof mass was …
Modeling Of Caprock Seal Failure Due To Fluid Injection, Hari Kiran Nambu
Modeling Of Caprock Seal Failure Due To Fluid Injection, Hari Kiran Nambu
Graduate Theses, Dissertations, and Problem Reports (ETD)
The past, present, and projected trends of increasing carbon dioxide (CO2) concentration levels in the atmosphere have raised serious concerns about global warming. Several efforts are being made to stabilize the current levels of CO2 emissions. Geologic sequestration of CO2 in deep saline aquifers is considered to be one of the potential options to reduce greenhouse gas emissions in the atmosphere. A tight, low-permeability caprock layer overlying the CO2-targeted reservoir limits the upward migration of CO2 and acts as a primary seal layer to trap CO 2. Large volumes of fluid or CO2 injected in the subsurface may over-pressurize the …
Implementing A Parametric Analysis In The Lamodel 3.0 Program, Christian Hugo Calderon Arteaga
Implementing A Parametric Analysis In The Lamodel 3.0 Program, Christian Hugo Calderon Arteaga
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis presents a parametric analysis in the LaModel 3.0 software and its corresponding results by showing how changes to input variables would affect the output of the model. This analysis was performed by taking of the most important inputs of the model and varying them inside a predefined range. The result of this variation was studied to determine how changes on input variables could affect the output of the model. A screening design technique was used, and it consists in taking the average values of the input variables, generate a valid range of variation and observe the behavior of …