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Bending Behavior Of Concrete T-Beams Reinforced With Glass Fiber-Reinforced Polymer (Gfrp) Bars, Rajesh Kumar Kalluri
Bending Behavior Of Concrete T-Beams Reinforced With Glass Fiber-Reinforced Polymer (Gfrp) Bars, Rajesh Kumar Kalluri
Graduate Theses, Dissertations, and Problem Reports
Concrete slabs are integrally cast with girders or stringers (stiffening system) resulting in floor slabs, bridge decks, footers, retaining structures and others. A portion of slab between a stiffening system acts as flange and bends in unison with the stiffening system, i.e., classic T-beam action. The emphasis of this study is to determine the effective flange width, failure modes, deformability factors, pre- and post-cracking deflections and crack widths at first crack and at ultimate failure of T-beams.;Eight concrete T-beams with two different flange widths and two reinforcement configurations were tested under four point bending to study the factors cited above. …
Probability Analysis Of Slope Stability, Jennifer Lynn Peterson
Probability Analysis Of Slope Stability, Jennifer Lynn Peterson
Graduate Theses, Dissertations, and Problem Reports
The ability of geotechnical engineers to accurately model slope performance is compromised by a variety of factors. The net result of these considerations is that the exact behavior of slopes cannot be accurately predicted. Hence, geotechnical engineers resort to a factor of safety approach to reduce the risk of slope failure. However, the factor of safety approach cannot quantify the probability of failure, or level of risk, associated with a particular design situation.;A probabilistic approach to studying geotechnical issues offers a systematic way to treat uncertainties, especially slope stability. In terms of probability, uncertainties can be related quantitatively to the …
Identification Of The Function Of The Carboxy Terminus Of Afap-110 In Regulating Afap-110'S Self-Association, Cell Localization And The Integrity Of Actin Filaments, Yong Qian
Graduate Theses, Dissertations, and Problem Reports
The actin filament associated protein of 110 kDa (AFAP-110) is a SH2/SH3 binding partner for Src. It has two SH2 binding motifs, one SH3 binding motif, one proline rich motif, two PH domains and one serine/threonine substrate region at its amino terminus and has been hypothesized to function as an adapter protein that mediate the effects of different signal proteins upon actin filaments. In this report, we demonstrated: (1) AFAP-110 has the ability to self-associate through carboxy terminal interactions. Analysis of the carboxy terminus of AFAP-110 reveals a leucine zipper motif. Expression of carboxy terminus as a fusion protein (GST-cterm) …
Causes And Consequences Of The 1909--1910 Steel Strike In The Wheeling District, Louis Charles Martin
Causes And Consequences Of The 1909--1910 Steel Strike In The Wheeling District, Louis Charles Martin
Graduate Theses, Dissertations, and Problem Reports
This thesis is a study of the failure of trade unionism in the Wheeling District mills in the early twentieth century, a district whose unions had previously enjoyed great success. The conversion to tin plate in the district was, at first, beneficial to the skilled workers in the union, but with the combination of companies culminating in the creation of the United States Steel Corporation, the union could no longer count on the skill of its members for survival. Ultimately, Wheeling steelworkers were victims of the modernization of the steel industry and a union that would not adopt industrial unionism …
Field Analysis And Design Of A Moving Iron Linear Alternator For Use With Linear Engine, Dulpichet Rerkpreedapong
Field Analysis And Design Of A Moving Iron Linear Alternator For Use With Linear Engine, Dulpichet Rerkpreedapong
Graduate Theses, Dissertations, and Problem Reports
The previous research at West Virginia University has developed a permanent magnet linear alternator and linear combustion engine for testing and studying the performance. In this prototype, magnets are part of the moving part.;This research will present a new type of linear alternator with permanent magnets installed on stationary called Moving Iron Linear Alternator (MILA). MILA offers several advantages over other types such as rugged structure, and low cost production. First, MILA will be designed for use with the existing linear engine. An optimization methodology will be applied to obtain optimal design parameters. Next, a MILA model will be created …
Regressive Model Approach To The Generation Of Test Trajectories, Brian James Taylor
Regressive Model Approach To The Generation Of Test Trajectories, Brian James Taylor
Graduate Theses, Dissertations, and Problem Reports
One possible method of reliability assurance is the application of large testing sets upon a system via statistical reliability assessment. Under this method, a software system's operations are tested according to their actual usage. A problem with this approach is the large number of tests required to properly assess reliability. Complicating the process are situations where an input into the system is a trajectory of data, where a trajectory is defined as a series of data points with each point relying upon the previous points. Examples of trajectories of data include an airplane's flight path or data describing a nuclear …
Effects Of Turbidity On The Foraging Abilities Of Brook Trout (Salvelinus Fontinalis) And Smallmouth Bass (Micropterus Dolomieu), John A. Sweka
Effects Of Turbidity On The Foraging Abilities Of Brook Trout (Salvelinus Fontinalis) And Smallmouth Bass (Micropterus Dolomieu), John A. Sweka
Graduate Theses, Dissertations, and Problem Reports
Sedimentation is the major pollutant of waters in North America. Most research on the effects of increased sedimentation has focussed on its effects on stream habitat and its ramification on the reproductive potential of fish. Although relatively large sediment loads may be necessary to alter stream habitat, only small loads are needed to raise mean stream turbidity levels. Turbidity may be an important, yet relatively unexamined factor in stream fish production. With this, I sought to determine the influence of elevated turbidity on the foraging abilities of two predatory species representing both cold and warm water stream habitas, brook trout …
Decision Support Tool For Costing Of The Pultrusion Process, Taher Badrudin Patrawala
Decision Support Tool For Costing Of The Pultrusion Process, Taher Badrudin Patrawala
Graduate Theses, Dissertations, and Problem Reports
The use of advanced composites has grown over the last two decades. These high strength, low weight materials can now be found in many structural applications, including bridges. However, the substitution of plastics for conventional materials, such as steel, is governed by engineering constraints and cost competitiveness. A brief discussion of the process variables and engineering constraints is presented in the first chapter. To analyze the latter and to identify cost centers in production more readily, a computerized cost model was developed. This model estimates the cost of producing components by the pultrusion process.;The technical cost modeling methodology employed involves …
Measuring Behavioral Disruption In Children Who Have Been In Motor Vehicle Accidents, Kimberly Mullen James
Measuring Behavioral Disruption In Children Who Have Been In Motor Vehicle Accidents, Kimberly Mullen James
Graduate Theses, Dissertations, and Problem Reports
This study examined the overt behavioral response of children following recent exposure to a motor vehicle accident (MVA). Forty-five children completed a clinical Stroop task. Children were divided, based on prior psychometric assessment, into three groups: (a) survivors of a recent MVA, and experiencing behavioral distress; (b) survivors of a recent MVA, and not experiencing behavioral distress; and (c) those who have not experienced an MVA. Differential color-naming and error response to four types of Stroop stimuli was assessed: (a) MVA-related words, (b) school-stress related words, (c) neutral household words, and (d) colored Xs. Analysis of participant characteristics indicated no …
Essays On The Political Economy Of State Government Saving And The Role Of Budget Stabilization Funds, Gary Albert Wagner
Essays On The Political Economy Of State Government Saving And The Role Of Budget Stabilization Funds, Gary Albert Wagner
Graduate Theses, Dissertations, and Problem Reports
This dissertation explores the saving behavior of state governments in the context of the ability of states to weather recessionary periods. The first chapter of the dissertation discusses the role of savings as a policy option for state decision-makers in light of the fiscal constraints facing state governments, reviews the previous literature that has examined the savings behavior of state governments, and outlines the research agenda for the dissertation. Chapter 2 provides statistics on the post-World War II savings of states to explore recent trends in their savings behavior and discusses the data employed in the dissertation. The third chapter …
Explanatory Models Of Chronic Pain, Elizabeth Neely Thrush
Explanatory Models Of Chronic Pain, Elizabeth Neely Thrush
Graduate Theses, Dissertations, and Problem Reports
Chronic pain is described as pain that persists for six months or longer. This type of pain may range from dull to excruciating and may be constant or sporadic. The purpose of this study was to explore the explanatory models of individuals living in chronic pain. The study sample included twelve adults, eleven women and one man, who have been diagnosed with the chronic pain condition Fibromyalgia. Using Arthur Kleinman's explanatory models as a framework, participants were personally interviewed regarding the physical, personal, and social causes and consequences of chronic pain. In order to elicit personal explanatory models, each participant …
Performance Evaluation Of Exhaust Aftertreatment Devices Used For Emissions Control On Diesel Engines Employed In Underground Coal Mines, Daniel K. Carder
Performance Evaluation Of Exhaust Aftertreatment Devices Used For Emissions Control On Diesel Engines Employed In Underground Coal Mines, Daniel K. Carder
Graduate Theses, Dissertations, and Problem Reports
This study was initiated to assist the WV Diesel Equipment Commission in its promulgation of initial rules, requirements, and standards governing the operation of diesel-powered equipment in underground coal mines. Four different engines and various exhaust after treatment devices that represent current levels of in-use technology were selected for performance evaluation. Both eddy-current and water-brake dynamometers were used to load the engines according to an ISO 8-Mode test cycle. Experimental emissions data, sampled from a full-flow dilution tunnel, suggests that particulate traps can reduce the mass emission rates of particulate matter (DPM) by nearly 90%, while reductions in fuel sulfur …
Development Of Decision Support System For Reliability, Mitesh Bhupendra Parekh
Development Of Decision Support System For Reliability, Mitesh Bhupendra Parekh
Graduate Theses, Dissertations, and Problem Reports
Reliability analysis is now an essential part of any product development. In the field of Electrical Engineering, reliability models are developed and analyzed for every component before it comes to market. The complexity of the product can range from a simple transistor to an integrated circuit chip, from a simple communication link to a complex network, and from a small generator to a large powerhouse.;Over the period, several techniques have been developed to systematically model real systems and then analyze them. These techniques are constantly being enhanced to improve the modeling process and to reduce the time required for the …
Geophysical Investigations Of Near-Surface Mine Sites In Northern West Virginia, Peter E. Fahringer
Geophysical Investigations Of Near-Surface Mine Sites In Northern West Virginia, Peter E. Fahringer
Graduate Theses, Dissertations, and Problem Reports
The production of acid mine drainage (AMD) from surface and underground coal mine sites in northern West Virginia is a major environmental problem and continues to receive much attention in affected communities. Reclamation efforts at these sites often require extensive and costly treatments and are based on limited subsurface information. Use of geophysical techniques to characterize these sites, monitor remedial efforts, and provide additional subsurface information is evaluated in this study. Terrain conductivity (EM31 and EM34) grids as well as resistivity and magnetic profiles were collected at a mine spoil and two abandoned underground mine sites in northern West Virginia. …
Functional Diversity And Life History Traits Of Arbuscular Mycorrhizal Fungi In Disturbed Soils, Kelly Marie Fleming
Functional Diversity And Life History Traits Of Arbuscular Mycorrhizal Fungi In Disturbed Soils, Kelly Marie Fleming
Graduate Theses, Dissertations, and Problem Reports
Relative effectiveness of ten species of arbuscular mycorrhizal fungi native to a revegetated coal strip mine site was tested on red clover against a non-mycorrhizal control and against inocula of two commercial isolates. Most (70%) of the isolated species in a native fungal community were as effective at promoting growth as commercial isolates. The net benefit of native colonizing fungi likely was positive, since the majority of the fungi colonizing two-year-old apple and grape in the field also were effective symbionts. The relationship between colonization and sporulation was compared among one Acaulospora , two Glomus, one Gigaspora, and one Scutellospora …
Measurement Of Particulate Matter Size, Concentration And Mass Emissions From In-Use Heavy Duty Vehicles, Richard Jason Byers
Measurement Of Particulate Matter Size, Concentration And Mass Emissions From In-Use Heavy Duty Vehicles, Richard Jason Byers
Graduate Theses, Dissertations, and Problem Reports
As technological advancements lower heavy duty vehicle particulate matter (PM) mass emission rates, there is concern that these improvements are increasing the toxicity of the PM by virtue of a subsequent reduction in particle size. These ultrafine particles are able to better penetrate the alveolar region where they can cause serious lung disorders. Alternative fuels such as compressed and liquefied natural gas (CNG and LNG) and the synthetic diesel fuel Mossgas are attractive in that they reduce the levels of total PM. However, use of natural gas in internal combustion engines may produce a larger number of smaller particles than …
Experimental Investigation Of Ion Temperature Anisotropy Driven Instabilities In A High Beta Plasma, Paul Arthur Keiter
Experimental Investigation Of Ion Temperature Anisotropy Driven Instabilities In A High Beta Plasma, Paul Arthur Keiter
Graduate Theses, Dissertations, and Problem Reports
The first measurements of an ion temperature anisotropy/beta inverse correlation in a high beta laboratory experiment are presented. The observation of this correlation is similar to such a correlation present in in-situ spacecraft measurements and predicted in theory. Low-frequency fluctuations are also observed. According to measurements presented here, these waves are electromagnetic, transverse, occur at frequencies below the cyclotron frequency and have wavenumbers consistent with predictions for the ion cyclotron anisotropy instability, also referred to as the Alfven Ion-Cyclotron instability. The device is a space simulation chamber that uses a helicon source for its plasma source. Ranges of ion beta …
Tissue Thickness Measurement Tool For Craniofacial Reconstruction, Hari Kinan Gopal Boddupalli
Tissue Thickness Measurement Tool For Craniofacial Reconstruction, Hari Kinan Gopal Boddupalli
Graduate Theses, Dissertations, and Problem Reports
Craniofacial Reconstruction is a method of recreating the appearance of the face on the skull of a deceased individual for identification purposes. Older clay methods of reconstruction are inaccurate, time consuming and inflexible. The tremendous increase in the processing power of the computers and rapid strides in visualization can be used to perform the reconstruction, saving time and providing greater accuracy and flexibility, without the necessity for a skillful modeler.;This thesis introduces our approach to computerized 3D craniofacial reconstruction. Three phases have been identified. The first phase of the project is to generate a facial tissue thickness database. In the …
Perceptions Of Hiv/Aids In West Virginia Nursing Facilities, Valarie Ann Bell
Perceptions Of Hiv/Aids In West Virginia Nursing Facilities, Valarie Ann Bell
Graduate Theses, Dissertations, and Problem Reports
Introduction. Placement of HIV/AIDS infected individuals into geriatric long-term care facilities has been a problem since the beginning of HIV/AIDS. Specific aims. The objective of this study was to determine how prepared West Virginia nursing facilities are to deal with the HIV/AIDS population. Methods. An anonymous mailed survey guided by the organizational change theory was sent to all 144 certified nursing facilities within the state. Questions were asked about current policies, procedures, education, concerns, resources, and experiences specific to HIV/AIDS. Results. A total of 72 surveys were returned for a response rate of 50%. Most facilities (71.8%) offered educational programs …
Experimental Characterization Of Heat Transfer From An Electrically Heated Thin Filament, Amy J. Cragg
Experimental Characterization Of Heat Transfer From An Electrically Heated Thin Filament, Amy J. Cragg
Graduate Theses, Dissertations, and Problem Reports
Thin filaments for use in glass, polymer, or textile industries are formed by extruding molten material through an orifice to form a continuous filament. These filaments are cooled rapidly from the melting temperature of the material to near room temperature. If this cooling occurs too rapidly or too slowly imperfections can develop in the filaments. These imperfections can decrease the overall quality and strength of the fiber sometimes leading to temporary production shutdowns caused by filament breakage.;Driven by the need to understand and control the cooling of thin filaments, research has been conducted to attempt to experimentally characterize the heat …
Development Of A Method For Calculation Of Cardiac Output Using Doppler Ultrasound, Amit Diggikar
Development Of A Method For Calculation Of Cardiac Output Using Doppler Ultrasound, Amit Diggikar
Graduate Theses, Dissertations, and Problem Reports
Cardiac output is the amount of blood pumped by the heart in one minute. The Doppler effect can be used to measure cardiac output by measuring the peak frequency, which is directly proportional to the velocity of blood flowing in the aorta, associated with the Doppler shift signal when an ultrasound beam is incident on the aorta. Stroke volume is the product of the cross sectional area of the aorta and the integration of peak velocity over time. Stroke volume times the heart rate is the cardiac output. This project attempts to develop an algorithm that would automatically calculates the …
Forest Songbird Abundance And Viability At Multiple Scales On The Monongahela National Forest, West Virginia, Thomas Eugene Demeo
Forest Songbird Abundance And Viability At Multiple Scales On The Monongahela National Forest, West Virginia, Thomas Eugene Demeo
Graduate Theses, Dissertations, and Problem Reports
Songbird-habitat relationships were investigated using three interrelated studies, each at multiple scales, on the Monongahela National Forest, West Virginia. In each study I used landscape (25 km2), transect (2500 m), and point (50-m radius point count plot) scales.;In the first study, I investigated bird abundance and species richness at these scales in four major forest types: mixed mesophytic, northern hardwoods, red spruce, and dry oaks. At the landscape scale, forest types differed in bird abundance (p = 0.07) and species richness (p = 0.08). Abundance of forest-interior species, Neotropical migrants, and nine key indicator species were greatest in the mixed …
Efficient And Flexible Algorithm For Plant Layout Generation, Li Weng
Efficient And Flexible Algorithm For Plant Layout Generation, Li Weng
Graduate Theses, Dissertations, and Problem Reports
A facilities layout, also called plant layout, consists of the production areas, production related or support areas and personnel areas within the building. Plant layout design is one of the strategic fields that determine the long run efficiency of operation.;This dissertation proposes an efficient and flexible plant layout algorithm to minimize the material handling cost and deal with change in future. A material flow forecasting tool, a scheduling module related to layout design and an evaluation method of flexible layouts are also proposed by this dissertation. A computer-based system will be developed to integrate all of the functions.;The first chapter …
Stability Studies Of Coal Liquid Products Using High Performance Liquid Chromatography, Lawrence P. Norcio
Stability Studies Of Coal Liquid Products Using High Performance Liquid Chromatography, Lawrence P. Norcio
Graduate Theses, Dissertations, and Problem Reports
The storage stability of coal liquids is of great importance if coal liquefaction products are to replace petroleum products. It has been reported that gum formation occurs in coal-derived liquids during storage to a level at which it becomes a handling problem. The aging of coal hydropyrolysis liquids has been studied. Coal liquid products were placed in preweighed sample vials and stored under light, in the presence of air, at different storage temperatures (2, 21, and 32°C). The weight of gum formed was determined at specified sampling times. High performance liquid chromatography (HPLC) was used to monitor the changes in …
Design And Development Of Fuzzy Expert System For Handy Board, Aditya Kumar Singh
Design And Development Of Fuzzy Expert System For Handy Board, Aditya Kumar Singh
Graduate Theses, Dissertations, and Problem Reports
The recent trend in global manufacturing scenario has resulted in the emergence of many innovative techniques that have revolutionized the manufacturing industry as a whole. A lot of states of art advances have been associated with the increasing use of microprocessors in advance manufacturing systems. Out of many the one, which has predominantly captured the real time, behavioral use is the Fuzzy Logic.;Fuzzy logic implementation in real time environment involves the integration of multi-disciplinary area like computer engineering, mechanical and electronic systems tailored towards smart systems that enable a very precise control on the process. The fuzzy logic based project …
Multiple Data Set Integration And Gis Techniques Used To Investigate Linear Structural Controls In The Southern Powder River Basin, Wyoming, Heath Patrick Rasco
Multiple Data Set Integration And Gis Techniques Used To Investigate Linear Structural Controls In The Southern Powder River Basin, Wyoming, Heath Patrick Rasco
Graduate Theses, Dissertations, and Problem Reports
Lineaments in the Powder River Basin were mapped and categorized from Landsat TM imagery, a Digital Elevation Model (30 m), and Digital Line Graph (DLG) hydrology files. A GIS program was written using DLG information to eliminate those lineaments that were within 20° of roads and railroads. The DLG and DEM information was further used to stratify the topographic lineaments into slope-breaks, ridge-tops, or valleys. Rose diagrams created for each class of lineaments give important clues on the timing of their formation. The major northwest and northeast trends that these lineaments follow appear to correspond with those identified by previous …
Determination Of Vitality From A Non-Invasive Biomedical Measurement For Use In Integrated Biometric Devices, Reza Derakhshani
Determination Of Vitality From A Non-Invasive Biomedical Measurement For Use In Integrated Biometric Devices, Reza Derakhshani
Graduate Theses, Dissertations, and Problem Reports
Personal identification is a very important issue in today's mobile and electronically networked societies. Among the available measures, fingerprints are the oldest and most widely used. Unfortunately, it is usually possible to deceive automatic fingerprint identification systems by presenting a well-duplicated synthetic or dismembered finger. This project is one method to provide fingerprint vitality authentication in order to solve this problem. Using a sensor that is composed of an array of capacitors, this method identifies the vitality of a fingerprint by detecting a specific changing pattern over the human skin. Mapping the two-dimensional images into one-dimensional signals, two ensembles of …
Encapsulation Of Particles Using Brittle Coatings For Subterranean Applications, Aashish L. Bhatia
Encapsulation Of Particles Using Brittle Coatings For Subterranean Applications, Aashish L. Bhatia
Graduate Theses, Dissertations, and Problem Reports
The production of a brittle and moisture-resistant coating for particles, which reduce or "break" the viscosity of fracturing fluids, was explored.;The viscosity-reducer was ammonium persulfate. Polyurethane and acrylate coatings were investigated. The coated particles were assessed for dissolution in water before and after being subjected to a compression test. Polyurethane-coated particles had a high leach prior to compression and were considered unsuitable. Acrylate coatings gave much better results. The addition of significant quantities of silica in the coat increased significantly its brittleness. The acrylate formed agglomerates during the coating process. These were easier to break than single particles. These agglomerates …
Milk Allergy/Intolerance In Infancy And Cognitive Functioning, Tina M. Yost
Milk Allergy/Intolerance In Infancy And Cognitive Functioning, Tina M. Yost
Graduate Theses, Dissertations, and Problem Reports
This study examines the relationship between a history of milk A/I in infancy and intelligence in later childhood. Participants included 74 male and female children ages 3 years to 12 years, referred for psychological evaluation. Background information gathered from the primary caregiver included history of milk A/I in infancy. The Wechsler Scales of Intelligence provided information on the participants level of cognitive functioning. Findings were significant for both ANOVA and chi square analysis, with children in Group One (milk A/I) demonstrating lower IQ scores than children in Group Two (no milk A/I). The findings also suggest a relationship between milk …
Characterization Of Particulate Matter And Hydrocarbon Emissions From In-Use Heavy-Duty Diesel Engines, Aleksandar Djordje Bugarski
Characterization Of Particulate Matter And Hydrocarbon Emissions From In-Use Heavy-Duty Diesel Engines, Aleksandar Djordje Bugarski
Graduate Theses, Dissertations, and Problem Reports
A continued increase in the use of diesel engines in heavy-duty vehicles, and the uncertainties about the effects of the emissions on human health have focused attention on risk assessments of exposure to the diesel exhaust. The characterization of diesel particulate matter (PM) and hydrocarbon (HC) emissions is the primary objective toward assessing potential health hazard. The dependence of DPM nature on engine/vehicle operating conditions, fuel type, different after treatment processes, and measurement process on the size resolved PM emissions was examined by operating the test engines and vehicles under steady-state and transient conditions. The regional deposition of DPM in …