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Nondestructive Evaluation Of Fiber Reinforced Polymer Bridge Decks Using Ground Penetrating Radar And Infrared Thermography, Cheng Lok Hing
Nondestructive Evaluation Of Fiber Reinforced Polymer Bridge Decks Using Ground Penetrating Radar And Infrared Thermography, Cheng Lok Hing
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recent studies have focused on the development of Fiber Reinforcement Polymer (FRP) as an alternative construction material for highway bridge decks.;The goal of this study was to explore the viability of nondestructive testing of FRP bridge decks using infrared thermography (IRT) and ground penetrating radar (GPR).;All tests were conducted on a 6' x 3' (1828.8mm x 914.4mm) low profile (4'' or 101.6mm deep) FRP bridge deck and a 3' x 2' (914.4mm x 609.6mm) low profile FRP bridge deck specimen with embedded delaminations. Replaceable wearing surface modules with air-voids of varying sizes were used to simulate air-filled debonds between the …
A Rotational Arm Connection Point Design For A C-130 Aircraft Standardized Sensor Platform, Kenneth A. Williams
A Rotational Arm Connection Point Design For A C-130 Aircraft Standardized Sensor Platform, Kenneth A. Williams
Graduate Theses, Dissertations, and Problem Reports (ETD)
West Virginia University's Center for Industrial Research Applications (CIRA) was sponsored by the United States Army National Guard (USANG) and the Department of Defense (DOD) to design a standardized, articulating sensor platform for the C-130 Hercules military aircraft. This sensor platform was to be capable of in-flight deployment and capable of facilitating a diverse spectrum of sensor configurations in order to aid in surveillance and reconnaissance for counter narco-terrorism efforts. Two complete sensor pallet prototypes have been developed. The current platform configuration consists of four aluminum arms that are connected to a rotational shaft via a cylindrical hub. For the …
The Impact Of Relative Permeability On Type Curves For Coalbed Methane Reservoirs, Sunil Lakshminarayanan
The Impact Of Relative Permeability On Type Curves For Coalbed Methane Reservoirs, Sunil Lakshminarayanan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Coalbed methane (CBM) is considered an unconventional gas resource produced from coal seams usually with low permeability at shallow depths. Analyzing the production performance in CBM reservoirs is challenging, especially at the early stages of recovery. Most of the small producers in the Appalachian Basin cannot afford personnel or meet economical requirements involved in the use of the numerical simulator to evaluate CBM reservoirs. Production type curves are an excellent tool for predicting the performance of CBM reservoirs. A set of type curves have been previously developed for horizontal and vertical wells in CBM reservoirs. The relative permeability characteristics have …
The Dissolution And Swelling Of Bituminous Coal In N-Methyl-Pyrrolidone, Joseph M. Stoffa
The Dissolution And Swelling Of Bituminous Coal In N-Methyl-Pyrrolidone, Joseph M. Stoffa
Graduate Theses, Dissertations, and Problem Reports (ETD)
Research detailed herein examined the extraction and swelling of a bituminous coal in the super solvent n-methyl-pyrrolidone. Correlations were developed to describe the extraction and swelling observed in the coal-solvent system. These correlations describe swelling and extraction based on experimental parameters such as extraction time and extraction temperature. The research concluded that swelling and extraction may be related processes. The most significant result of the research was a proposed relationship between the rapidness of coal swell and the coal's solubility in the solvent. The research served as support for coal structure models and solvent extraction mechanisms published in peer reviewed …
Development Of Microfluidic Devices For Proteomics, Trust T. Razunguzwa
Development Of Microfluidic Devices For Proteomics, Trust T. Razunguzwa
Graduate Theses, Dissertations, and Problem Reports (ETD)
We have developed functional components for a comprehensive microfluidic system for proteomic analyses. This dissertation presents development of an electroomsotic pump for delivery of fluids to other microfluidic channels, a hydrodynamic flow restrictor for combining electrokinetic and hydrodynamic flow on a microfluidic chip-ESI-MS interface, and surface coatings to prevent analyte adsorption to microfluidic channels. A microfluidic chip ESI-MS interface with a novel voltage switching component is also developed for the separation of negative analytes at high pH, with positive ion mode ESI-MS detection of the analyte, converted to positive ions via a make-up solution induced pH change.
Magnetic And Structural Properties Of Nanoparticles Of Nickel Oxide, Hyunja (Jenny) Shim
Magnetic And Structural Properties Of Nanoparticles Of Nickel Oxide, Hyunja (Jenny) Shim
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this dissertation, magnetic properties of NiO nanoparticles (NP) prepared by the sol-gel method in the size range D = 5 nm to 20 nm, with and without oleic acid (OA) coating, are reported. Transmission electron microscopy (TEM) studies show the morphology of the smaller particles to be primarily rod-like, changing over to nearly spherical shapes for D >10 nm. Average sizes D of NP determined by x-ray diffraction (XRD) are compared with the results from TEM. From the analysis of the XRD line intensities, the particle size dependence of the Debye-Waller factors for Ni and O atoms are derived. …
Training Nursing Students In Evidence-Based Nonpharmacological Pain Management Techniques, Jill E. Maclaren
Training Nursing Students In Evidence-Based Nonpharmacological Pain Management Techniques, Jill E. Maclaren
Graduate Theses, Dissertations, and Problem Reports (ETD)
Pain is a common and potentially debilitating condition. Whereas there is vast literature on developmentally appropriate behavioral techniques for pain management, results of curriculum evaluations and knowledge surveys reveal a dearth of awareness of these strategies in healthcare professionals. This study evaluated the effects of a brief didactic training program for student nurses in developmentally appropriate behavioral pain management strategies for children. Results indicated that students who received the training program had significantly more knowledge of behavioral strategies following the training program than they had evidenced before the program. Further, these participants evidenced higher knowledge following the training program than …
Analysis Of The Mechanisms Mediating The Regulation Of Acetyl -Coa Carboxylase Transcription By The Liver X Receptor And Chenodeoxycholic Acid, Saswata Talukdar
Analysis Of The Mechanisms Mediating The Regulation Of Acetyl -Coa Carboxylase Transcription By The Liver X Receptor And Chenodeoxycholic Acid, Saswata Talukdar
Graduate Theses, Dissertations, and Problem Reports (ETD)
Agonists of the liver X receptor (LXR) prevent and decrease arterial plaque formation in experimental models of atherosclerosis. The anti-atherosclerotic effects of LXR agonists are mediated by an increase in expression of genes involved in cholesterol export. Currently, the therapeutic utility of LXR agonists is limited by the fact that these agents increase triglyceride levels in the blood and liver. These undesired effects are caused by an increase in transcription of genes controlling triglyceride synthesis, such as acetyl CoA carboxylasealpha (ACCalpha). We have demonstrated that a synthetic LXR agonist, T0-901317 increases ACCalpha via both a direct mechanism involving the activation …
Effects Of Pesticide Exposure On The Humoral Immune Response Following Streptococcus Pneumoniae Vaccination, Keith Douglas Salazar
Effects Of Pesticide Exposure On The Humoral Immune Response Following Streptococcus Pneumoniae Vaccination, Keith Douglas Salazar
Graduate Theses, Dissertations, and Problem Reports (ETD)
As pesticide use rises in the US annually, the need for extensive characterization of the risks associated with these substances also increases. Herbicides represent the most frequently used type of pesticides. 3,4-dichloropropionanilide (propanil) and 2,4-dicholorophenoxyacetic acid (2,4-D) are two of the most commonly used herbicides. These experiments evaluated the effects of propanil and 2,4-D on the humoral immune response in C57BL/6 mice following heat-killed Streptococcus pneumoniae (HKSP) immunization. Intraperitoneal exposure of 150 mg/kg propanil on the same day as HKSP immunization enhances the splenic T-independent type 2 antibody response to phosphorylcholine (PC) antigen 4-6-fold. Maximal PC enhancement occurs 7 days …
Geographic Interpretation: The Role Of Spatial Knowledge In The Interpretation Of Natural Resources, Heidi Leigh Bailey
Geographic Interpretation: The Role Of Spatial Knowledge In The Interpretation Of Natural Resources, Heidi Leigh Bailey
Graduate Theses, Dissertations, and Problem Reports (ETD)
A surge of interest in geographic information has stemmed from the recent proliferation of Geographic Information Systems, Global Positioning Systems, and web-based tools such as Google Earth. This growing interest in geographic information has many implications for natural resource interpretation. Visitor centers and interpretive centers have long been sources of geographic information---providing maps and exhibits depicting a site or region. Such displays come in all shapes and sizes and in a variety of media, including maps, models, projections, animations and dioramas. Yet missing from the field of interpretation is research on the effectiveness of these tools in conveying geographic information …
The Efficacy And Repeatability Of The Vita Easy Shade System When Compared To Traditional Visual Methods Of Shade Evaluation, Ali Kanawati
The Efficacy And Repeatability Of The Vita Easy Shade System When Compared To Traditional Visual Methods Of Shade Evaluation, Ali Kanawati
Graduate Theses, Dissertations, and Problem Reports (ETD)
The standard method for clinical shade matching is the human eye along with comparative analysis among operators or auxiliary personnel. This study evaluated a new electronic method of clinical shade matching as compared to the standard method that has been almost exclusively used in the past. The Vita Easy Shade system, an electronic method of shade matching, was analyzed for relative accuracy and compared to specific operators' abilities whose effectiveness in color analysis within the realm of dentistry has been determined to be above average by using a simple color screening test. The Vita Easy Shade machine was used on …
It Takes A Town To Build A Trail: Relationships Between Nonprofit Organizations And Local Governments In Rail-Trail And Greenway Development In Three West Virginia Communities, Kelly L. Pack
Graduate Theses, Dissertations, and Problem Reports (ETD)
As more communities across the country are developing rail-trails and greenways, relationships among community-based nonprofit organizations and local government entities evolve during trail development. Twenty-three participants from the nonprofit and local government sectors in three West Virginia municipalities were interviewed about their relationships and experience in rail-trail and greenway development. This qualitative analysis employs a grounded theory framework and reveals several practical and theoretical findings. Perceived benefits and costs of trail development reported by participants provided a context for how participants relayed experiences indicative of their political and built environments. Factors that constrain or facilitate relationship building between nonprofit organizations …
Subsurface Mapping Of Ellesmerian Onlaps: Testing The Opening Of The Arctic Canada Basin, Brian Connelly
Subsurface Mapping Of Ellesmerian Onlaps: Testing The Opening Of The Arctic Canada Basin, Brian Connelly
Graduate Theses, Dissertations, and Problem Reports (ETD)
Since the advent of plate tectonics in the mid-1960's the mechanism for formation of the majority of the world's ocean basins has been solved. However, there are still several remaining tectonic conundrums, such as the origin of the Arctic Canada Basin. The most widely accepted tectonic hypothesis proposes a rotational opening of the basin after rifting along the Northern Alaskan-Canadian Arctic margins.;Subsurface mapping the Ellesmerian strata of Northern Alaska onlapping onto the Barrow Arch, a long-lived basement high, was carried out and then compared with mapped strata on Prince Patrick Island, Canada, to see if they aligned. These mapped onlaps …
A Reexamination Of The Distributive Politics Model And The Allocation Of Federal Community Development Block Grant (Cdbg) Dollars, Howard A. Stern
A Reexamination Of The Distributive Politics Model And The Allocation Of Federal Community Development Block Grant (Cdbg) Dollars, Howard A. Stern
Graduate Theses, Dissertations, and Problem Reports (ETD)
The literature on the distributive politics model suggests that elected officials strategically allocate public benefits to curry favors, secure votes and gain reelection. In other words, elected officials distribute public benefits in such a way as to enhance their own personal careers and goals. Unfortunately, this centralized, top-down perspective (Rich 1989), which focuses exclusively on the motivations of the elected officials, fails to consider the political, economic and social characteristics of the governmental unit represented by the officials. These contextual factors may influence the allocation decisions made by the elected officials. Thus, an expanded distributive politics model---one that takes into …
An Analysis Of Institutions, Economic Freedom, And The Quality Of Life, Nathan J. Ashby
An Analysis Of Institutions, Economic Freedom, And The Quality Of Life, Nathan J. Ashby
Graduate Theses, Dissertations, and Problem Reports (ETD)
The impact of economic freedom on the quality of life is the subject of interest for this dissertation. Three separate studies are conducted. The first of these studies in Chapter 2 analyzes the impact of economic freedom on the quality of life in an international panel data study between 1985 and 2000. It is found that economic freedom and in particular well-defined property rights and limited regulation lead to improvement in the quality of life using the Index of Human Progress, an index made up income, health and education indicators, and access to modern technology for individuals in a given …
Network Effects And Spatial Autoregression In Mode Choice Models: Three Essays In Urban Transportation Economics, Frank Goetzke
Network Effects And Spatial Autoregression In Mode Choice Models: Three Essays In Urban Transportation Economics, Frank Goetzke
Graduate Theses, Dissertations, and Problem Reports (ETD)
Network analysis in transportation economics has traditionally focused on congestion as a negative externality stemming from supply-side capacity constraints. In my first paper paper, an analytical mode choice model is developed to examine the demand-side network effects. The assumption behind the approach is that, because of social network effects, the utility of people taking the mode increases with its mode share. It is found that social network effects change the modal aggregate demand curve for the mode to an inverted u-shape. This result has far-reaching policy consequences, since multiple equilibria become a possibility, causing positive externalities and path-dependency.;Transportation planners have …
The Impact Of Exposure To Violent Music On Undergraduate College Males' State Anger, Affective, Physiological, And Aggressive Behavioral Action Responses, Kristee Hamm Treadwell
The Impact Of Exposure To Violent Music On Undergraduate College Males' State Anger, Affective, Physiological, And Aggressive Behavioral Action Responses, Kristee Hamm Treadwell
Graduate Theses, Dissertations, and Problem Reports (ETD)
The current study addresses the potential negative impact of exposure to violent lyrical music on West Virginia University undergraduate college males' state anger, affective, physiological and aggressive behavioral action responses. In addition, relationships between the following variables were also examined: (a) level of trait anger and aggressive behavioral action responses, (b) level of trait anger control and aggressive behavioral action responses, (c) level of trait anger expression and aggressive behavioral action responses, (d) overall anger expression index and aggressive behavioral action responses, (e) daily music listening and aggressive behavioral action responses, and (f) prior music exposure and aggressive behavioral action …
The Role Of Pi3k/Akt/Tsc/P70s6k1 Pathway In Tumor Growth And Angiogenesis, Qiao Meng
The Role Of Pi3k/Akt/Tsc/P70s6k1 Pathway In Tumor Growth And Angiogenesis, Qiao Meng
Graduate Theses, Dissertations, and Problem Reports (ETD)
PI3K/AKT pathway plays an important role in tumor progression and angiogenesis. To determine the specific role of PI3K isoform p110alpha in ovarian cancer, we designed small interfering RNA (siRNA) against p110alpha. The expression of p110alpha siRNA significantly decreased cell migration, invasion, and proliferation. AKT has three different isoforms: AKT1, AKT2 and AKT3. We found that downregulation of AKT1 is sufficient to inhibit cell migration, invasion, and proliferation in ovarian cancer cells. The activation of p70S6K1 was decreased in both p110alpha and AKT1 siRNA-expressing cells. Inhibition of p70S6K1 activity also decreased cell migration, invasion, and proliferation.;The tuberous sclerosis complex-2 (TSC2) lies …
Effects Of The Electric Kelvin Force On Spray Cooling Performance, Shannon Lynnette Glaspell
Effects Of The Electric Kelvin Force On Spray Cooling Performance, Shannon Lynnette Glaspell
Graduate Theses, Dissertations, and Problem Reports (ETD)
Spray cooling is an efficient thermal management technique that may possibly be improved by employing an electric Kelvin force to control the fluid motion and delay the onset of critical heat flux. In the present study, a spray cooling apparatus consisting of a spray chamber (housing a spray nozzle and electrically heated surface) and a flow generating base package has been built and tested for varying nozzle-to-heater distances and also varying electrode geometries for a range of spray conditions and electrode voltages. The two part goal was to first determine the qualitative sensitivity of the distance between the heated surface …
Design Of A Quick-Release Mechanism For A C-130 Aircraft Sensor Platform, Seth D. Lucey
Design Of A Quick-Release Mechanism For A C-130 Aircraft Sensor Platform, Seth D. Lucey
Graduate Theses, Dissertations, and Problem Reports (ETD)
The development of a standardized sensor pallet system for a C-130 aircraft was conceived by the Center for Industrial Research Applications at West Virginia University to assist in counterdrug reconnaissance activities within the United States. The system has been completed and is now being optimized for various uses in addition to counterdrug reconnaissance. It is sought to have the sensor carriers/housings easily interchangeable so that they may be switched in the field by operators rather than in the hangar by technicians. The design parameters were established by the National Guard mission requirements and by the limitations of the C-130 aircraft. …
Coordinated Traffic Signal Systems For Municipalities, Scott K. Nale
Coordinated Traffic Signal Systems For Municipalities, Scott K. Nale
Graduate Theses, Dissertations, and Problem Reports (ETD)
Many municipalities have a need for a document which examines installation and operations methods used in coordinated traffic signal systems. Included within this document are the results of surveys of various municipalities which range in population from thirty three thousand persons to in excess of five hundred thousand persons. Along with the state of practice information, some conclusions and recommendations are defined so that municipalities may begin to implement coordinated traffic signal systems within their jurisdiction. This document will be of interest to those persons who manage, operate, and maintain traffic signal systems; in addition, engineers and municipal officials tasked …
Geomechanical And Weathering Properties Of Weak Roof Shales In Coal Mines, Hakan Gurgenli
Geomechanical And Weathering Properties Of Weak Roof Shales In Coal Mines, Hakan Gurgenli
Graduate Theses, Dissertations, and Problem Reports (ETD)
Many coal seams have weak shale immediate roofs that cause ground control problems. Therefore, it is important to know the mechanical properties of these shales so that preventive measures can be developed in advance. However, it is sometimes hard to understand this rock type due to its unpredictable behavior. A good example of this situation is found with the shale roof strata in two coal mines located in the Illinois coal basin---Herrin No. 6 seam. Although these mines are located very close to each other, one of them has many roof falls, whereas the other has no measurable ground control …
Productivity Index Of Multilateral Wells, Upender Naik Nunsavathu
Productivity Index Of Multilateral Wells, Upender Naik Nunsavathu
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the history of petroleum science there are a vast variety of productivity solutions for different well types, well configurations and flow regimes. The main well types that were considered for calculating the productivity indexes were vertical wells and horizontal wells. The configurations considered were multilayer perforations, dual lateral wells with laterals at same depths, stacked wells etc. There are few solutions to estimate the well productivity for complex configurations like multilateral wells.;The main objective of this work is to identify a numerical solution method for calculating productivity indexes for different well configurations like single vertical well, single horizontal well, …
Pitch Foam Production By Use Of Physical Blowing Agents, Mark E. Heavner
Pitch Foam Production By Use Of Physical Blowing Agents, Mark E. Heavner
Graduate Theses, Dissertations, and Problem Reports (ETD)
Carbon foam is a material with many unique characteristics and proposed applications. Demanding processing requirements make many of the applications uneconomical. In this study, the possibility of impressing external physical blowing agents (PBA) into pitch is investigated to form pitch foam, a precursor to carbon foam. This would reduce processing pressure and temperature requirements and decrease the cost of manufacturing. Two pitches have been characterized and have thermoplastic character similar to organic polymers. Several physical properties were measured for 110°C and 180°C softening point pitch which were supplied by Koppers Inc. and compared to select common polymers. PBAs are frequently …
Evaluation Of Sterling Silver As A Contacting Material For The Cathode Chamber Of The Solid-Oxide Fuel Cell, John Sakacsi
Evaluation Of Sterling Silver As A Contacting Material For The Cathode Chamber Of The Solid-Oxide Fuel Cell, John Sakacsi
Graduate Theses, Dissertations, and Problem Reports (ETD)
In recent years the operating temperature of the SOFC has been reduced to ~800C, making it possible to use silver in the fabrication of the cell stack. Silver is attractive due to its high conductivity, ductility and the fact that it does not form non-conductive scales that could reduce the performance of the fuel cell stack. This research focuses on the development and testing of candidate materials, utilizing silver, in a simulated cathode environment using a simple tube furnace and air supply. Test specimens were fabricated using simple powder metallurgy techniques or by the oxidation of specific alloys to create …
Machine Vision Applications In Uavs For Autonomous Aerial Refueling And Runway Detection, Larry W. Rowe Ii
Machine Vision Applications In Uavs For Autonomous Aerial Refueling And Runway Detection, Larry W. Rowe Ii
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research focuses on the application of Machine Vision (MV) techniques and algorithms to the problems of Autonomous Aerial Refueling (AAR) and Runway Detection. In particular, real laboratory based hardware was used in a simulated environment to emulate real-life conditions for AAR. It was shown that the K-Means Clustering Algorithm solution to the Marker Detection problem could be executed at a frame rate of 30 Hz and it averaged a tracking error of less than one pixel while utilizing only 0.16% of the image. It was also shown that the solution to the Runway Detection problem could be executed at …
Filter Weighing Procedure For 2007 And Newer Heavy Duty Diesel Engines, Eric Taylor
Filter Weighing Procedure For 2007 And Newer Heavy Duty Diesel Engines, Eric Taylor
Graduate Theses, Dissertations, and Problem Reports (ETD)
The 2007 heavy-duty on road diesel engine particulate matter standards will require that the particulate matter (PM) levels being emitted from the exhaust will be less than 0.01 g/bhp-hr. This ten-fold decrease in the existing regulations created the need for changes in the PM filter-weighing environment and procedures. The Code of Federal Regulations Title 40, Part 86 Subpart N (40 CFR 86) has stated that a weighing environment must meet Federal Standard 209E class 1000 classification. This regulation required a new cleanroom facility in the West Virginia University Center for Alternative Fuels, Engines and Emissions laboratories.;Weighing procedures were determined by …
Analysis Of Energy Consumption In Continuous Galvanizing Lines, Raviraj Ratnakar Chavan
Analysis Of Energy Consumption In Continuous Galvanizing Lines, Raviraj Ratnakar Chavan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The pot hardware in continuous galvanizing lines is prone to failure and needs to be replaced quite frequently. This resulted in considerable loss of production time. Also equipment like, the molten zinc pot and annealing furnace cannot be turned off during downtime resulting in considerable energy consumption during downtime too.;A profound study of the energy aspect of the equipment used on galvanizing line was done. A systematic approach was used to collect and analyze the data from galvanizing facilities. A decision support system (DSS) that will take into account all the major energy consuming equipment in a typical hot dip …
Composite Suspension Member Analysis, Bruce M. Schlicker
Composite Suspension Member Analysis, Bruce M. Schlicker
Graduate Theses, Dissertations, and Problem Reports (ETD)
As research has developed advancement in composites, they are increasingly being used as components in dynamic situations, e.g. suspension members. Previously used alloy materials are being replaced. Current research has led to developments in attaching aluminum to the composite. This new material is often referred to as a hybrid composite.;Hybrid composites used as suspension components become popular for their increased design flexibility. In this thesis, the shock mounting point was of the concern. It was found that the weak link in the hybrid aluminum/composite attachment is the bond between the aluminum and the epoxy.;Experiments and research led to advancements and …
Soil Microbial Communities From The Alimentary Canal Of The Earthworm Lumbricus Terrestris (Oligochaeta: Lumbricidae), Joshua A. Chapman
Soil Microbial Communities From The Alimentary Canal Of The Earthworm Lumbricus Terrestris (Oligochaeta: Lumbricidae), Joshua A. Chapman
Graduate Theses, Dissertations, and Problem Reports (ETD)
The effect of earthworm (Lumbricus terrestris) activity on microbial community composition was investigated in a silt loam soil. Fingerprints were constructed using PCR amplicons of bacterial 16S rDNA separated by denaturing gradient gel electrophoresis. Analysis of similarity established that significant differences existed between community fingerprints. Differences were explored using non-metric multidimensional scaling (MDS) and unweighted pair-group method with arithmetic mean (UPGMA). Microbial communities of earthworm casts separated from soil treatments for both CD DGGE and CI DGGE profiles. Cast communities were determined by the worm's food source. Soils with earthworms and manure separated from all other soil treatments. Major trends …