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Topological Visualization Of Tensor Fields Using A Generalized Helmholtz Decomposition, Lierong Zhu
Topological Visualization Of Tensor Fields Using A Generalized Helmholtz Decomposition, Lierong Zhu
Graduate Theses, Dissertations, and Problem Reports (ETD)
Analysis and visualization of fluid flow datasets has become increasing important with the development of computer graphics. Even though many direct visualization methods have been applied in the tensor fields, those methods may result in much visual clutter. The Helmholtz decomposition has been widely used to analyze and visualize the vector fields, and it is also a useful application in the topological analysis of vector fields. However, there has been no previous work employing the Helmholtz decomposition of tensor fields. We present a method for computing the Helmholtz decomposition of tensor fields of arbitrary order and demonstrate its application. The …
A Proposed Method For Evaluation Of Morphological Changes In The Condyle And Glenoid Fossa By Cone Beam Computed Tomography, Michael R. Munn
A Proposed Method For Evaluation Of Morphological Changes In The Condyle And Glenoid Fossa By Cone Beam Computed Tomography, Michael R. Munn
Graduate Theses, Dissertations, and Problem Reports (ETD)
The difficulty with three-dimensional analyses remains with the myriad of data that is possible to derive from a volume. The goal of this study is to report 3D changes in the temporomandibular joint in a reliable and quantifiable way. The approach included plotting specific referents on the mandibular condyle and tracking them in magnitude (mm) and direction (°) on a reference plane after superimposing the cone beams three-dimensionally on the inferior alveolar nerve canal and the lower contour of the third molar tooth germ. Two sets of measurements were compared for reliability and each measurement showed varied correlation. Linear measurements …
Empirical Analysis Of Bwt-Based Lossless Image Compression, Kalyan Varma Bhupathiraju
Empirical Analysis Of Bwt-Based Lossless Image Compression, Kalyan Varma Bhupathiraju
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Burrows-Wheeler Transformation (BWT) is a text transformation algorithm originally designed to improve the coherence in text data. This coherence can be exploited by compression algorithms such as run-length encoding or arithmetic coding. However, there is still a debate on its performance on images. Motivated by a theoretical analysis of the performance of BWT and MTF, we perform a detailed empirical study on the role of MTF in compressing images with the BWT. This research studies the compression performance of BWT on digital images using different predictors and context partitions. The major interest of the research is in finding efficient …
Fatigue Of Polymer Composites: Life Prediction And Environmental Effects, David Brian Dittenber
Fatigue Of Polymer Composites: Life Prediction And Environmental Effects, David Brian Dittenber
Graduate Theses, Dissertations, and Problem Reports (ETD)
Fiber reinforced polymer composites offer significant advantages over traditional structural materials, but also many challenges, particularly with regard to their long term behavior. The fatigue performance of composites has been explored for the last few decades but it is still difficult to predict the behavior of a particular material under different loading and environmental conditions. Many researchers have worked to develop fatigue life prediction models and others to characterize the effect of environmental changes on static composite material properties, but experimental work in both of these areas can be difficult to perform and thus many observations have not been fully …
Predicting The Gas-Condensate Extended Composition Analysis, Muzher I. Almusabeh
Predicting The Gas-Condensate Extended Composition Analysis, Muzher I. Almusabeh
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of this study was to predict the extended composition of gas condensate fluid in order to enhance phase behavior prediction via equation of state. This research work introduces a systematic methodology to estimate the extended heptane plus composition by matching the mole fraction, the average molecular weight, the average specific gravity and the dew point pressure. For the extended method to be accepted, the averaging properties results should be within 3% of the lab results. A number of published compositional data have been used to verify the reliability of this methodology. Four different methods are compared and analyzed, …
Nondestructive And Destructive Evaluation Of Frp Composite Wrapped Concrete Cylinders With Embedded Debonds, Shasanka Shekhar Dutta
Nondestructive And Destructive Evaluation Of Frp Composite Wrapped Concrete Cylinders With Embedded Debonds, Shasanka Shekhar Dutta
Graduate Theses, Dissertations, and Problem Reports (ETD)
A major application of composite materials in the reinforced concrete industry is to wrap columns with Fiber Reinforced Polymer (FRP) composite fabric which results in increase in the columns' axial compressive strength and ductility. Presence of debonds between the FRP wrap and the underlying column surface inhibits the proper confinement of the column by the composite wrap.;The objectives of this research are: (a) to evaluate the feasibility of using Active Infrared Thermography for qualitative as well as quantitative evaluation of debonds in Fiber Reinforced Polymer (FRP) wrapped columns, (b) to understand of influence of heat flux, debond width and debond …
Self-Efficacy For The Self-Regulation Of Learning: An Examination Of A College Success Strategies Course, Brandon M. Agostini
Self-Efficacy For The Self-Regulation Of Learning: An Examination Of A College Success Strategies Course, Brandon M. Agostini
Graduate Theses, Dissertations, and Problem Reports (ETD)
Self-efficacy has been shown to be a good predictor of task performance. An area identified as needing further research is the influences of self-efficacy. The objective of this research project was to assess efficacy beliefs related to the regulation of learning for students enrolled in a semester long college success strategies course. This was done to determine if learning about the learning process and skills and behaviors that promote learning would positively influence efficacy beliefs related to the regulation of learning. The college success strategies course was designed to teach students various learning and time management skills. Efficacy beliefs were …
Enhanced Coal Bed Methane Production And Sequestration Of Carbon Dioxide In Unmineable Coal Seams., Camilo E. Calderon
Enhanced Coal Bed Methane Production And Sequestration Of Carbon Dioxide In Unmineable Coal Seams., Camilo E. Calderon
Graduate Theses, Dissertations, and Problem Reports (ETD)
The process of modeling reservoirs that are controlled by desorption such as Coal Bed Methane has always been challenging due to the complexities associated with flow of fluids in these types of reservoirs. These complexities become more notable while the injection process is taking place since interaction between the injected gas alters the coal properties with respect to time. This manuscript summarizes the results of a study that includes reservoir simulation and modeling efforts that are focused on natural gas production and subsequent CO2 injection into an unmineable coal seam in the Marshall Country West Virginia. Two coal seams (Pittsburgh …
Numerical Modeling Of Near-Surface Carbon Dioxide Migration With Barometric Pumping Effects., Guoxiang Liu
Numerical Modeling Of Near-Surface Carbon Dioxide Migration With Barometric Pumping Effects., Guoxiang Liu
Graduate Theses, Dissertations, and Problem Reports (ETD)
With anthropogenic activities, the concentration of CO2 in the atmosphere has dramatically risen, very likely resulting in global warming and climate change. Capturing and disposing of the produced CO2 in geological formations can mitigate this problem provided that there is no substantial leakage from the subsurface back to atmosphere for hundreds of years. The detection of any CO2 leakage is essential to verify that the sequestration is effective, to initiate corrective actions if leakage is discovered, and to accurately assign storage credits in a "cap and trade" regulatory system. Natural fluctuations in atmospheric pressure are one factor that influences the …
Economics Of Geological Sequestration And Carbon Management: A Case Study Of Shenhua's Direct Coal Liquefaction Plant In China., Hui Su
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this carbon-constrained world, carbon management options for climate change mitigation are becoming increasingly important, especially in China, the largest energy consuming and GHG emitting nation in the world. As a case study of a carbon capture and storage (CCS) project for Shenhua's direct coal liquefaction (DCL) plant, this study (1) investigates impacts of China's potential climate change policies on a firm's CCS decisions; (2) examines how a firm is expected to make decisions on the selection of CO2 storage reservoirs; and (3) improves the understanding of the potential for CCS to become a major mitigation option in China. This …
Elementary Teachers' Attitudes About Professional Development: Professional Development Schools Versus Non-Professional Development Schools., Cynthia L. Gissy
Elementary Teachers' Attitudes About Professional Development: Professional Development Schools Versus Non-Professional Development Schools., Cynthia L. Gissy
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study will look at elementary teachers’ attitudes about professional development: professional development schools versus non-professional development schools. Professional development schools are partnered with institutions of higher education and have many types of opportunities for in-service teachers, higher education faculty, and pre-service teachers to participate in professional development together. The goal of all stakeholders in a professional development school relationship is to impact public school students, to better prepare pre-service teachers and provide additional and specific professional development opportunities for in-service teachers. The goal would be to show that participation in a professional development partnership would yield a more positive …
Electrical Characterization Of Buckled Graphene Films Derived From Plasma Etched Silicon Carbide., Tobias Denig
Electrical Characterization Of Buckled Graphene Films Derived From Plasma Etched Silicon Carbide., Tobias Denig
Graduate Theses, Dissertations, and Problem Reports (ETD)
Graphene is a 2D allotrope of carbon with exceptional electronic properties and numerous applications. Research in the Surface and Materials Studies Laboratory at West Virginia University has led to the development of a low temperature, halogen based plasma etching process that produces buckled graphene films on 6H-SiC. Films ranging from one to five layers in thickness have been produced. This growth process is scalable with the SiC wafer diameter, and in principle, it resolves many of the difficult issues associated with the manufacturability of large area epitaxial graphene films. The growth process and functionalization of these buckled graphene films have …
Incremental Validity Of The Psychopathic Personality Inventory - Revised In Predicting Program Failure., Katrina L. Mccoy
Incremental Validity Of The Psychopathic Personality Inventory - Revised In Predicting Program Failure., Katrina L. Mccoy
Graduate Theses, Dissertations, and Problem Reports (ETD)
The current study examined the incremental validity of the Psychopathic Personality Inventory- Revised in relation to the Psychological Inventory of Criminal Thinking Styles and Personality Assessment Inventory in predicting failure of a Residential Drug Abuse Treatment Program among 222 male inmates. Failure was defined as expulsion, withdrawal, or restart of the residential phase of the treatment program or failure during the community transition phase. One-hundred fifty-eight inmates completed the program and 64 failed. Analyses revealed that scales on the Psychopathic Personality Inventory-Revised and the PAI predicted treatment failure with low predictive accuracy that was greater than chance. Specifically, the Psychopathic …
Technique, Aesthetics, And Style In Eighteenth-Century Compositional Pedagogy: Beethoven's Pedagogical Influences., Sean E. Beachy
Technique, Aesthetics, And Style In Eighteenth-Century Compositional Pedagogy: Beethoven's Pedagogical Influences., Sean E. Beachy
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research project presents a critical analysis of the published scholarship with regard to technique, aesthetics, and style as part of the pedagogy of composition, with a focus on Ludwig van Beethoven and his teachers, and the evolution of compositional pedagogy that occurred in the eighteenth century. In the continually evolving world of composition, technique, aesthetics, and style have remained three important issues with regard to compositional pedagogy. Evidence of this importance is found in pedagogical relationships as early as the sixteenth century. The manner in which composition was taught also remained consistent throughout Johann Sebastian Bach’s pedagogical associations as …
An Engineer's Story: Ernst Behrend And The Hammermill Paper Company, The First Quarter Century., Scott W. Daley
An Engineer's Story: Ernst Behrend And The Hammermill Paper Company, The First Quarter Century., Scott W. Daley
Graduate Theses, Dissertations, and Problem Reports (ETD)
In 1898, Ernst Behrend arrived in America controlling approximately Z1,000,000 to build a paper mill. He and his father, Moritz Behrend, had secured investments from a small pool of German entrepreneurs who owned other paper mills in Prussia. The Behrend family had been among the pioneers in producing sulphite paper made from wood pulp rather than cotton rag, and they wanted to transfer the technology to America. Starting Hammermill Paper Company in America proved to be more demanding than planning had foretold. The sulphite process was successful, but the Behrends faced numerous challenges in their new business venture. Ernst Behrend, …
Sex Segregation And Young Adults' Gender-Typed Attitudes About Occupations, Lisa M. Didonato
Sex Segregation And Young Adults' Gender-Typed Attitudes About Occupations, Lisa M. Didonato
Graduate Theses, Dissertations, and Problem Reports (ETD)
The present study examined the relation between the prevalence of sex segregation, or the division of men and women within social interactions, and young adults' gender-typed attitudes. Specifically, gender-typed attitudes about the occupations that are preferred for the self and viewed as appropriate for others were investigated. The objectives of the current study were partially based on the suggestion that gender-typed attitudes may be a consequence, as well as a cause, of sex segregation (McHale, Kim, Whiteman, & Crouter, 2004). The gender-typed personality traits of expressivity (i.e., traits typically associated with femininity; e.g., being emotional) and instrumentality (i.e., traits typically …
Imputation Methods For Dealing With Missing Scores In Biometric Fusion, Yaohui Ding
Imputation Methods For Dealing With Missing Scores In Biometric Fusion, Yaohui Ding
Graduate Theses, Dissertations, and Problem Reports (ETD)
Biometrics refers to the automatic recognition of individuals based on their physical or behavioral characteristics. Multimodal biometric systems, which consolidate multiple biometric characteristics of the same person, can overcome several practical problems that occur in single modality biometric systems. While fusion can be accomplished at various levels in a multimodal biometric system, score level fusion is commonly used as it offers a good trade-off between fusion complexity and data availability. However, missing scores affect the implementation of most biometric fusion rules. While there are several techniques for handling missing data, the imputation scheme, which replaces missing values with predicted values, …
Site Characterization Of Hemlock Stands At Allegheny National Forest, Daniel Farcas
Site Characterization Of Hemlock Stands At Allegheny National Forest, Daniel Farcas
Graduate Theses, Dissertations, and Problem Reports (ETD)
Eastern Hemlock Tsuga canadensis is a coniferous tree native to eastern North America. It ranges from northeastern Minnesota eastward through southern Quebec, and from the southern Appalachian Mountains to northern Georgia and Alabama.;This majestic tree is threatened with elimination by an invasive species Hemlock Woolly Adelgid (HWA) Adelges tsugae introduced in the USA in 1924, which is believed to be a native of Asia. HWA reduces shoot growth, provokes branch dieback, and eventually tree death.;One strategy to help mitigate the fast spread of HWA is to determine what may cause host potential resistance to HWA and how to use this …
Mechanical Degradation Of Thermal Properties Of Flexible Aerogel Blankets, Brice G. Gnahore
Mechanical Degradation Of Thermal Properties Of Flexible Aerogel Blankets, Brice G. Gnahore
Graduate Theses, Dissertations, and Problem Reports (ETD)
Aerogel materials are of significant interest to numerous applications in many areas of engineering such as oil, gas, aerospace, military, construction, building and apparel because they offer insulating properties that outperform traditional materials by a factor ranging from 2 to 8. Although an aerogel can be manufactured in a clamshell, sleeve or sheet shapes, the most versatile form is a blanket. Aerogel blankets are composites of silica aerogel particles dispersed in a reinforcing fiber matrix that turns the brittle aerogel into a durable and flexible insulating mat.;While aerogel blankets exhibit excellent thermal properties, they are still some concerns over dust …
Use Of Direct Instruction To Teach Reading To Students With Significant Cognitive Impairments: Student Outcomes And Teacher Perceptions, Philip Michael Kanfush Iii
Use Of Direct Instruction To Teach Reading To Students With Significant Cognitive Impairments: Student Outcomes And Teacher Perceptions, Philip Michael Kanfush Iii
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine whether students with significant cognitive impairments make measurable gains in reading skills as measured by the Woodcock Reading Mastery Tests -- Revised when taught using Direct Instruction reading programs. Additionally, the study explored teacher perceptions of the effectiveness of Direct Instruction for teaching students with significant cognitive impairments, and examined whether a relationship exists between teacher perceptions and student gains on the Woodcock Reading Mastery Test- Revised. Four special education teachers employed at a private licensed school for exceptional children in the Commonwealth of Pennsylvania participated in the study. Repeated measures analyses …
A Case Study Of Universal Design For Learning Applied In The College Classroom, Marie E. Leichliter
A Case Study Of Universal Design For Learning Applied In The College Classroom, Marie E. Leichliter
Graduate Theses, Dissertations, and Problem Reports (ETD)
As the landscape of education and the demographics of the postsecondary classroom continue to evolve, so too must the teaching practices at our nation's institutions of higher education. This study follows an instructor who has evolved to incorporate Universal Design for Learning (UDL) techniques into her classroom, even though prior to participation in this research study, she had not heard of UDL. UDL is a flexible framework used to design curricula that enable all learners to acquire knowledge, skills, and motivation to learn. This qualitative, descriptive case study addressed how and to what extent UDL techniques are being implemented in …
Mathematical Modeling In Understanding Nfkb Signaling Pathway, Huanling Liu
Mathematical Modeling In Understanding Nfkb Signaling Pathway, Huanling Liu
Graduate Theses, Dissertations, and Problem Reports (ETD)
Chronic diseases, cancers and diabetes are associated with dysregulation of many biochemical cues. These biochemical cues are proteins that regulate cellular activity migration and death. The synthesis of these proteins is regulated by nuclear transcription factors. One of the most studied transcription factor is nuclear factor kappa B (NFkappaB). Many different proteins have been identified that regulate the activity of NFkappaB. Yet, how these proteins regulate NFkappaB is still unclear.;Understanding the regulation of NFkappaB is important for developing drugs to treat these diseases. Our long term goal is to understand the mechanisms that regulate NFkappaB activity. The goal of this …
Phospholipid Enhanced Separation With Capillary Electrophoresis, Ruijuan Luo
Phospholipid Enhanced Separation With Capillary Electrophoresis, Ruijuan Luo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Phospholipids were used as an additive in capillary electrophoresis to enhance the separation of glycans derived from alpha1-acid glycoprotein, fetuin, and ribonuclease B. The properties of phospholipid preparations were dependent upon composition, hydration, and temperature. Separation performance was evaluated as a function of these variables. A preparation of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and 1,2-dihexanoyl-snglycero-3-phosphocholine (DHPC), with [DMPC]/[DHPC] = 2.5, in 10% lipid/aqueous buffer at 25 °C provided the best separation efficiency at an electric field strength of 400 V/cm. Resolution was enhanced with the additive as well.;Phospholipids were also investigated as an additive for capillary electrophoresis separation of DNA molecules. Lipid preparations …
Essays On Risk Management Applications To Appalachian Grass -Fed Beef, Maitreyi Mandal
Essays On Risk Management Applications To Appalachian Grass -Fed Beef, Maitreyi Mandal
Graduate Theses, Dissertations, and Problem Reports (ETD)
The study area of this dissertation is the Appalachian state of West Virginia, where pasture-based livestock has traditionally dominated the state's agricultural production sector. Enhanced production risk has been identified as one of the key risk factors in grass fed beef production. This study aims to look into various risk management options that are available to grass-fed beef producers. One such management option is the various livestock insurance and rangeland, forage and grass land protection policies recently introduced and marketed by the Risk Management Agency (RMA) of USDA. The Livestock Risk Protection Plan (LRP) has been available to West Virginia …
Engendering Meaning Within The High School Experience: A Consideration Of Movement And Dance, Stephanie A. Morris
Engendering Meaning Within The High School Experience: A Consideration Of Movement And Dance, Stephanie A. Morris
Graduate Theses, Dissertations, and Problem Reports (ETD)
Dance, movement, and kinesthetic learning are among the most powerful ways in coming to know, yet they are amid the most ignored processes at the high school level. Dance has the power to change lives as it offers aesthetic ways of viewing and connecting with the world through its creative, reflective, and imaginative embodied experiences. I have observed these valuable outcomes and address the nature and power of them with the following questions: (1) How has dance and movement influenced my journey? (2) How has this influence affected the high school experience of my students? The heuristic method of qualitative …
Validity And Reliability Of Accelerometers For Examining Vertical Jump Performance, Ryan M. Ruben
Validity And Reliability Of Accelerometers For Examining Vertical Jump Performance, Ryan M. Ruben
Graduate Theses, Dissertations, and Problem Reports (ETD)
Purpose. The objectives of this study were to determine the validity and reliability of an accelerometer as a device for estimating force-time curve characteristics and examine the effect of reducing sampling frequency.;Methods. Sixty college aged men and women (age=23.63.1 y; height=180.16.3 cm; weight=85.015.2kg; body fat=14.26.5%) performed 10 restricted (no arm swing) zero-load countermovement vertical jumps each for a total of 600 jumps. Peak force, rate of force development, peak power output, peak velocity, flight time and peak vertical displacement were assessed with the use of a tri-axial accelerometer and compared to a force platform + linear position transducer system. The …
Modeling Of Forest Harvest Scheduling And Terrestrial Carbon Sequestration, Benktesh Dash Sharma
Modeling Of Forest Harvest Scheduling And Terrestrial Carbon Sequestration, Benktesh Dash Sharma
Graduate Theses, Dissertations, and Problem Reports (ETD)
It has generally been agreed that forests sequester atmospheric carbon and thus contribute to mitigating anthropogenic emissions in a cost effective manner compared to other available carbon sequestration techniques. With increasing concerns on global greenhouse gases and emerging carbon markets, additional carbon sequestered as a result of sustainable forest management activities can be of significant benefits for forest landowners. Harvesting, an important forest management activity, plays a crucial role in determining the forest's ability in sequestrating carbon. Harvesting modifies the forest carbon sequestration potential depending on time of harvest, age of stands, species composition, and types of harvest. The allocation …
Power Simulator Upgrade For Smart Grid Algorithm Development And Testing, Michael Joseph Spencer
Power Simulator Upgrade For Smart Grid Algorithm Development And Testing, Michael Joseph Spencer
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis describes the conversion of WVU's analog power simulator into a micro-grid of the future test bed by installing digital relays and intelligent electronic switches. The simulator is a hardware representation of the grid which contains traditional hardware, both digital and analog as well as the recent addition of highly connected, via Ethernet and potentially wireless communication, smart switching and monitoring devices. These new devices were chosen specifically for their cyber security capability to explore that facet of smart grid development. It is important to note that this simulator is a hardware implementation and as such is capable of …
Heat Balance Analysis Of Annealing And Galvanneal Furnace In Continuous Galvanizing Lines, Senthil Kumar Sundaramoorthy
Heat Balance Analysis Of Annealing And Galvanneal Furnace In Continuous Galvanizing Lines, Senthil Kumar Sundaramoorthy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Galvanizing facilities are highly energy intensive operation with electrical and fuel energy representing a significant share of their total energy usage. Furnaces are extensively used in galvanizing process. Production process expertise along with the energy conservation practices can play a significant role in proper usage of energy at galvanizing facilities. Therefore, benchmarking galvanizing energy consumption and understanding the specific energy consumption by various elements are critical. E-GEPDSS (Enhanced Galvanizing Energy Profiler Decision Support System) was built to identify this specific energy consumption by using heat balance analysis. The use of E-GEPDSS does not hinder the production process and the user …
Dynamic Bandgap Tuning Of Solid Thin Film Photonic Crystal Structures, Hyma Yalamanchili
Dynamic Bandgap Tuning Of Solid Thin Film Photonic Crystal Structures, Hyma Yalamanchili
Graduate Theses, Dissertations, and Problem Reports (ETD)
Nanophotonics, specifically photonic crystals (PhCs), offer unique optical bandgap engineering possibilities that has driven the emergence of a variety of device platforms, including: beam splitters, nano-cavity resonators, lasers, fibers, waveguides and highly sensitive optofluidic biosensor devices. The design and fabrication of accurate lattice parameters for a PhC is very important to achieving the desired operating bandgap. The inclusion of tunability in thin film PhCs not only offers a means of adjusting for fabrication errors but also a mechanism to increase device functionality as well as providing a wider range of operating wavelengths. Nitride thin films, specifically Aluminum Nitride (AlN) and …