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Aircraft Intercom System Design For Project Oculus, Jay Paul Wilhelm Jan 2005

Aircraft Intercom System Design For Project Oculus, Jay Paul Wilhelm

Graduate Theses, Dissertations, and Problem Reports (ETD)

Project Oculus is an ongoing development project at WVU that aims to create a quick and easy sensor platform for deployment on the C-130 aircraft. Because this platform will be operated inside the noisy cargo bay of the C-130, an intercom system needed to be designed in the operator station of Project Oculus that would allow for different types of headsets and future expandability.;An intercom system was designed, constructed, and tested that uses military and civilian headsets to communicate both internally for Project Oculus and externally to the C-130 crew and provides support for a headset to be connected externally …

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Quality Of Life And Clinical Outcomes In Type 2 Diabetes Patients At The Primary Care Clinics Of The West Virginia University Hospital, Murali Sundaram Jan 2005

Quality Of Life And Clinical Outcomes In Type 2 Diabetes Patients At The Primary Care Clinics Of The West Virginia University Hospital, Murali Sundaram

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examines relationships between quality of life (QoL) and clinical outcomes, specifically A1C, in Type 2 diabetes patients. Type 2 diabetes patients at the outpatient clinics of a university hospital completed the SF-12 and the Audit of Diabetes Dependent Quality of Life (ADDQoL), and this was merged with a retrospective collection of his/her clinical and utilization data, including A1C. Usable response rate was 44.3% (n = 385). Mean A1C of respondents was 7.2 (+1.4), mean diabetes duration was 10.2 (+9.1), and 62.1% were obese. Only ADDQoL scores showed significant correlation with A1C (r = -0.19, p < 0.000). Hierarchical regression models were used to explain the effect of A1C on QoL controlling for demographics and clinical variables. A1C was not a significant predictor in any regression model, although univariate analyses indicated significantly lower ADDQoL and SF-12 PCS in the group with A1C > 7.0. Obesity was …

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Estimation Of Image Quality Factors For Face Recognition, Akintunde A. Akinbola Jan 2005

Estimation Of Image Quality Factors For Face Recognition, Akintunde A. Akinbola

Graduate Theses, Dissertations, and Problem Reports (ETD)

Over the past few years, verification and identification of humans using biometric has gained attention of researchers and of the public in general. Face recognition systems are used by the public and the government and are applied in different facets of life including security, identification of criminals and identification of terrorists. Because of the importance of these applications, it is of great necessity that face recognition systems be as accurate as possible. Some research has shown that image quality degrades the performance of face recognition systems. Most previous research has focused on designing algorithms for face recognition that deal or …

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An Assessment Of Eyewitness Accuracy: The Integration Of Suggestibility And Misidentification, Karri Bonner Jan 2005

An Assessment Of Eyewitness Accuracy: The Integration Of Suggestibility And Misidentification, Karri Bonner

Graduate Theses, Dissertations, and Problem Reports (ETD)

The current study was an examination of eyewitness accuracy and how it relates to misidentification. A new scale to measure suggestibility in adults (The Video Suggestibility Scale for Adults, VSSA) was developed. This scale is modeled after the Gudjonsson Suggestibility Scales, which define suggestibility as a combination of Yield and Shift. Participants (N = 160) were administered the VSSA. Participants watched a video of two crimes and were subsequently interviewed either immediately or after a 5-8 day delay. The interview consisted of free recall, open-ended questions, and closed-ended questions suggestive questions. Participants also viewed several lineups to assess accuracy of …

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Osteotropic Cytokines Mediate Human Osteoblast-Like Cell Eicosanoid Production, Anurag Grover Jan 2005

Osteotropic Cytokines Mediate Human Osteoblast-Like Cell Eicosanoid Production, Anurag Grover

Graduate Theses, Dissertations, and Problem Reports (ETD)

We have examined the effects of the cytokines tumor necrosis factoralpha (TNF), transforming growth factorbeta (TGFbeta) and the effect of cyclooxygenase inhibitor ibuprofen on prostaglandin and 15-HETE biosynthesis by normal adult human osteoblast-like (hOB) cells. In the present studies, conditioned media harvested from hOB cell cultures were assayed by eicosanoid specific EIAs to determine quantitatively the effects of cytokines on PGE2, 6-keto-PGF1alpha, PGF2alpha, PGD2, thromboxane (TXB2) and on 15-HETE biosynthesis. EIA analysis indicated that PGE2 was the predominant PG metabolite released by unstimulated hOB cells and its synthesis was increased more than other PGs in cells treated with (TGFbeta) and …

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Development Of An Optimized Short-Span Steel Bridge Package, Lora B. Freeman Jan 2005

Development Of An Optimized Short-Span Steel Bridge Package, Lora B. Freeman

Graduate Theses, Dissertations, and Problem Reports (ETD)

A recent study from the West Virginia Department of Transportation indicates that a number of existing bridges in West Virginia are structurally deficient or functionally obsolete. As there are not sufficient funds to replace or rehabilitate all of the insufficient structures a means of economically replacing the inadequate structures in a time efficient manner is necessary. One method of conserving time and resources is by employing standardized bridge plans. Therefore, the focus of this effort is on the development of a optimized short-span steel bridge package.;This study focused on developing optimized plans for two roadway cross-sections for spans between 40 …

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Effects Of Heating, Breathing, Hair Style, Posture, And Air Velocity On Breathing Zone Concentrations For An Anthropometrically-Correct Manikin In A Wind Tunnel, Waleed Mahmoud Elnahas Jan 2005

Effects Of Heating, Breathing, Hair Style, Posture, And Air Velocity On Breathing Zone Concentrations For An Anthropometrically-Correct Manikin In A Wind Tunnel, Waleed Mahmoud Elnahas

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ethanol concentrations were measured on an anthropometrically correct, heated, breathing manikin holding a source in its hands at waist height while both sitting and standing in a wind tunnel. The manikin was oriented with its back to the cross draft velocity. Sampling probes were placed at the manikin's mouth, nose, forehead, neck, both collars, center chest and both lapels. Samples were taken from each probe concurrently for 15 minutes by drawing air at 0.15 L/min into separate Teflon(TM) bags using separate sampling lines. The work was divided into two studies each having factorial study designs and two replications of each …

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Multi-Heuristic Theory Assessment With Iterative Selection, Kareem Ammar Dec 2004

Multi-Heuristic Theory Assessment With Iterative Selection, Kareem Ammar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Modern day machine learning is not without its shortcomings. To start with, the heuristic accuracy, which is the standard assessment criteria for machine learning, is not always the best heuristic to gauge the performance of machine learners. Also machine learners many times produce theories that are unintelligible by people and must be assessed as automated classifiers through machines. Theses theories are either too large or not properly formatted for human interpretation. Furthermore, our studies have identified that most of the data sets we have encountered are satiated with worthless data that actually leads to the degradation of the accuracy of …

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Social Responsibility In Major Newspapers Coverage Of "9/11 Lapses" Controversy, Hai Long Tran Dec 2004

Social Responsibility In Major Newspapers Coverage Of "9/11 Lapses" Controversy, Hai Long Tran

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study measures major newspapers' performance in covering the "September 11 lapses" controversy against social responsibility principles. Content analysis of 535 newspaper items, published by the New York Times, Washington Post, San Francisco Chronicle, USA Today in one year (Sept. 12, 2001--Sept. 11, 2002), found the papers did not live up to journalistic precepts traditionally listed as required for the press in a democratic society. They were successful in providing a source of comprehensive and balanced information, a forum for exchange of comment and criticism on the government's losses and failures. However, major newspapers failed to aggressively pursue independent investigative …

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What Is The Impact Of Parental Support On Early Literacy?, Deborah K. Bush Dec 2004

What Is The Impact Of Parental Support On Early Literacy?, Deborah K. Bush

Graduate Theses, Dissertations, and Problem Reports (ETD)

Today, more than 75 percent of women ages 25--34 and 75 percent of women with a child under six years of age participate in the labor force. When both parents work outside the home, they often want to send their child to preschool, but preschool classes aren't always available, and often those that are available are the government programs that are open only to those of lower socio-economic status.;In addition, parents often want to support the emergent literacy of their children and help prepare them for kindergarten but aren't sure of how to provide the type of assistance that might …

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Strength Evaluation Of Honeycomb Frp Sandwich Panels With Sinusoidal Core Geometry, An Chen Dec 2004

Strength Evaluation Of Honeycomb Frp Sandwich Panels With Sinusoidal Core Geometry, An Chen

Graduate Theses, Dissertations, and Problem Reports (ETD)

In recent years, the demands in civil infrastructure have provided opportunities for development and implementation of Honeycomb Fiber-Reinforced Polymer (HFRP) sandwich panels, both in rehabilitation projects and new constructions.;This dissertation is the first study on strength evaluation of HFRP sandwich panels with sinusoidal core geometry. Core materials for sandwich structures are primarily subjected to out-of-plane compression and shear. Therefore, three major contributions are included in this dissertation: out-of-plane compression, out-of-plane shear, and study on facesheet laminates. Two analytical models, corresponding to pure compression and elastic buckling failure, respectively, are provided for panels subject to out-of-plane compression. The facesheet and core …

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Automatic Hydraulic Fracturing Design For Low Permeability Reservoirs Using Artificial Intelligence, Andrei Sergiu Popa Dec 2004

Automatic Hydraulic Fracturing Design For Low Permeability Reservoirs Using Artificial Intelligence, Andrei Sergiu Popa

Graduate Theses, Dissertations, and Problem Reports (ETD)

The hydraulic fracturing technique is one of the major developments in petroleum engineering in the last two decades. Today, nearly all the wells completed in low permeability gas reservoirs require a hydraulic fracturing treatment in order to produce at an economical level. This study presents a new methodology, applicable to tight gas reservoirs, for designing hydraulic fractures.;This study is intended to develop an automatic hydraulic fracture design tool to help users design fracture jobs without being an expert in the art and science of hydraulic fracturing. This process is composed entirely of an integration of several artificial intelligence techniques.;The methodology …

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Characteristics Of West Virginia Secondary Agricultural Educators, James C. Beatty Dec 2004

Characteristics Of West Virginia Secondary Agricultural Educators, James C. Beatty

Graduate Theses, Dissertations, and Problem Reports (ETD)

All agricultural educators are expected to teach each student the three aspects of the agricultural education program, FFA, Supervised Agricultural Experience programs, and classroom and laboratory instruction. The purpose of this study was to determine the characteristics of an agricultural educator in the state of West Virginia. Agricultural educators rated reading, writing, and mathematics incorporation into the curriculum above average in the survey. They also felt that they encouraged professional and respectful relationships with their students almost all of the time. The amount of sarcasm used in the classroom, and bypassing school policy when the situation warranted it, returned varying …

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Software Risk Assessment Based On Uml Models, Kalaivani Appukkutty Dec 2004

Software Risk Assessment Based On Uml Models, Kalaivani Appukkutty

Graduate Theses, Dissertations, and Problem Reports (ETD)

Risk is the possibility of suffering loss. Risks identified during the early stages of software development are easier and cheaper to handle by making changes to the software architecture. This thesis presents methodologies to assess software risk using Unified Modeling Language (UML) specifications of the software from the early design stages. We present methodologies to assess two types of software risk: Requirements-based risk and Performance-based risk. In assessing requirements-based risk, each requirement is mapped to a specific operational scenario in UML. The risk factor of a scenario in a failure mode is obtained by combining the probability of failure of …

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Shrinkage And Strength Characterizations Of Concrete Containing Supplementary Cementing Materials, Aniruddha Chatterjee Dec 2004

Shrinkage And Strength Characterizations Of Concrete Containing Supplementary Cementing Materials, Aniruddha Chatterjee

Graduate Theses, Dissertations, and Problem Reports (ETD)

Considerable differences in drying shrinkage strains and compressive strengths are observed in HPC containing supplementary cementing materials from normal concrete (without any supplementary cementing material). The differences in these properties due to addition of supplementary cementing materials occur because of different quantity of C-S-H gel formation. This limits the application to HPC of standard prediction equation for shrinkage and strength of normal concrete.;Therefore in this study a novel technique has been used to estimate the C-S-H gel for cement pastes containing supplementary cementing materials in varying replacement proportions and combinations. New shrinkage and compressive strength models have been developed using …

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Natural Gas Exploration Associated With Fracture Systems In Alleghenian Thrust Faults In The Greenbrier Formation, Southern West Virginia, Craig A. Edmonds Dec 2004

Natural Gas Exploration Associated With Fracture Systems In Alleghenian Thrust Faults In The Greenbrier Formation, Southern West Virginia, Craig A. Edmonds

Graduate Theses, Dissertations, and Problem Reports (ETD)

A hydrocarbon play has been identified in southern West Virginia targeting the intersection of thrust faults with specific Mississippian reservoirs. Late Paleozoic sandstone and limestone reservoirs are traditional pays of the study area, often yielding economic natural gas production, with initial production rates ranging between 100 to 200 Mcf per day per well. In contrast, production rates from wells that encounter faults often exceed 500 Mcf per day. We believe this prolific production results from secondary fracture porosity and enhanced permeability from fracture zones associated with thrust faults, providing a conduit to the Union Oolite reservoir member of the Greenbrier …

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Effectiveness Of Treatment And Diversity Of Microbial Populations Within A Constructed Wetland Treating Wastewater, Jolene M. Friedland Dec 2004

Effectiveness Of Treatment And Diversity Of Microbial Populations Within A Constructed Wetland Treating Wastewater, Jolene M. Friedland

Graduate Theses, Dissertations, and Problem Reports (ETD)

Constructed wetlands are used as alternative on-site wastewater treatment systems. Microbiological dynamics in constructed wetlands are essential to adequate functioning and efficiency of these systems. The efficacy of wastewater treatment by a large subsurface flow wetland receiving wastewater from a multi-user facility was examined. Real-time monitoring with telemetry was combined with measurement of standard wastewater parameters such as biochemical oxygen demand (BOD5), total suspended solids (TSS), and enumeration of fecal coliforms. Passage of wastewater through the wetland significantly reduced standard wastewater parameters in effluent samples. Heterotrophic bacterial diversity was examined using community level physiological profiling (CLPP) and molecular characterization of …

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Starvation-Induced Alterations In Hepatic Lysine Metabolism In Different Families Of Rainbow Trout (Oncorhynchus Mykiss), Angela Higgins Dec 2004

Starvation-Induced Alterations In Hepatic Lysine Metabolism In Different Families Of Rainbow Trout (Oncorhynchus Mykiss), Angela Higgins

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study focused on lysine catabolism by the lysine alpha-ketoglutarate reductase (LKR) pathway in rainbow trout (RBT). Selective breeding based on feed efficiency in 2 strains (A and B) of RBT generated 2 families within each strain. Eight fish from each of the four families were randomly allotted to individual tanks. Fish were fed until satiation for 3 wks at which time four fish within each family were randomly selected for 2 wks of starvation. After the 2 wk starvation, all fish were harvested. Hepatic in-vitro LKR activity and lysine oxidation (LOX) were measured as was LKR mRNA abundance. Strain …

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West Virginia Coal Fly Ash Sorption Of Btex, Jerome C. Wentz Dec 2004

West Virginia Coal Fly Ash Sorption Of Btex, Jerome C. Wentz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sorption is a term used in the environmental field to describe how chemical contaminants in soil and groundwater adhere to solid particles such as: clay, peat and activated carbon for the purposes of remediation, fate and transport. A potential surrogate for sorption of chemical contaminants in groundwater is coal fly ash. Batch test experiments have demonstrated coal fly ash's ability to remove hydrophobic, organic petroleum contaminants including: benzene, toluene, ethylbenzene and xylenes (BTEX) in groundwater through the processes of sorption. Coal fly ash is a byproduct material of coal fired power plants that is often disposed of on-site or at …

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System Identification And Control Of The Standpipe In A Cold Flow Circulating Fluidized Bed, Juchirl Park Dec 2004

System Identification And Control Of The Standpipe In A Cold Flow Circulating Fluidized Bed, Juchirl Park

Graduate Theses, Dissertations, and Problem Reports (ETD)

Circulating fluidized beds (CFB) have been widely applied to many areas of industry such as chemical processing, petroleum refining, catalytic cracker processing, power generation, and waste treatment.;Recently, a mathematical model of the CFCFB standpipe was successfully developed and tested using an extended Kalman filter (EKF) and an Hinfinity estimator algorithm. Using this standpipe mathematical model requires a solids circulation rate (SCR) to be a measurable variable offered from a spiral installed in the standpipe of the CFCFB. In this research, a linear state space system model is developed in order to estimate the solids circulation rate, using a least squares …

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Augmentation Of The Differentiation Response To Antitumor Quinolines, Rayhana Rahim-Bata Dec 2004

Augmentation Of The Differentiation Response To Antitumor Quinolines, Rayhana Rahim-Bata

Graduate Theses, Dissertations, and Problem Reports (ETD)

An impeding challenge to breast cancer drug therapies is the availability of more effective and less toxic chemotherapeutic agents that do not relay harm to neighboring normal breast cells and tissues. Preliminary studies showed that the quinoline antimalarials, chloroquine (CQ and hydroxychloroquine (HCQ), inhibit proliferation and induce differentiation in breast cancer cell lines without toxicity to normal MCF-10A breast cells. Hence, the goal of these studies was to explore: (1) whether a drug combination modulating epigenetic events would sensitize breast cancer cells to the antitumor activity of CQ or HCQ, (2) and if so, which would be the most promising …

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Impact Of Langmuir Isotherm On Production Behavior Of Cbm Reservoirs, Efundem Ndipanquang Arrey Dec 2004

Impact Of Langmuir Isotherm On Production Behavior Of Cbm Reservoirs, Efundem Ndipanquang Arrey

Graduate Theses, Dissertations, and Problem Reports (ETD)

Coalbed Methane is an unconventional gas resource that consists of methane production from the coal seams. CBM reservoir performance is also influenced by the interrelationship of reservoir, geologic, and operation parameters. Coalbed methane production performance is considered complex and difficult to analyze especially at the early stages of recovery.;This study was conducted to develop type curves which predict the impact of Langmuir Isotherms on production behavior on a Coalbed Methane reservoir in order to evaluate the economic feasibility and to maximize potential recovery. In order to achieve this objective, the impact of Langmuir isotherm constant on production type curves was …

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Load-Based Energy Savings In Three-Phase Squirrel Cage Induction Motors, Subodh Chaudhari Dec 2004

Load-Based Energy Savings In Three-Phase Squirrel Cage Induction Motors, Subodh Chaudhari

Graduate Theses, Dissertations, and Problem Reports (ETD)

Energy is an extremely valuable resource which should be used carefully. After realizing this in the 1990's DOE started various energy efficiency measures in order to reduce the energy consumed by US industry. Motors use almost 50 percent of the electricity in the United States. If motor efficiency could be increased then energy consumption could be reduced. There have been efforts to increase motor efficiency over past decade which lead to development of premium efficiency motors. Designed motor efficiency is normally above 90 percent so motors do not waste energy. However, motor efficiency decreases when load factor is less than …

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Recycling Of Plastics Derived From End-Of-Life (Eol) Electronic Equipment, Xiufang Cheng Dec 2004

Recycling Of Plastics Derived From End-Of-Life (Eol) Electronic Equipment, Xiufang Cheng

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research work focuses on a chemical process to separate mixed plastics from EOL electronic equipment.;The most prominent components of waste plastics, PC (Polycarbonate), PS (Polystyrene) and ABS (Acylonitrile Butadiene Styrene) from obsolete computers are taken to be samples in this work. Qualitative analysis was carried out to identify these samples using FT-IR (Fourier Transform Infrared Spectroscope). Quantitative analysis was performed using Elemental Analyzer to get the calibration curves for PC/PS and PC/ABS. A number of organic solvents were investigated to dissolve the desired samples. A series of separation experiments were carried out with PC/PS, PC/ABS, and PC/PS/ABS mixtures under …

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Channel Geomorphology Relationships For The Beaver Creek Watershed, Atif Hamid Dec 2004

Channel Geomorphology Relationships For The Beaver Creek Watershed, Atif Hamid

Graduate Theses, Dissertations, and Problem Reports (ETD)

The proposed Appalachian Corridor H will be built through some of the most rugged terrain in West Virginia. The Corridor H section from Davis to Bismarck passes through the Beaver Creek watershed, located in Tucker County, West Virginia, which has been heavily affected by historic mining, deteriorating the water quality conditions of the Beaver Creek watershed. Due to the construction of Corridor H, some of the streams will be disturbed from their present courses. Hence, stream restoration work for these streams is inevitable. It is important to develop a family of stream geometry curves that relate the bankfull parameters as …

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Mathematical Writing In The Elementary Classroom, Dana D. Mccauley Dec 2004

Mathematical Writing In The Elementary Classroom, Dana D. Mccauley

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study, fourth and fifth grade students at River View Elementary participated in mathematics activities requiring written and oral dialogue. These dialogues were analyzed to determine how their mathematical understandings were reflected in their written and oral discussions. An examination of pre and post mathematical writing occurred to determine the effect the dialogue had on students' mathematical writing. Students were given a mathematics problem to solve. After reading the mathematics problem, each student wrote questions they had regarding the problem as well as a request for additional information that they felt was needed to solve the problem. Students exchanged …

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Women And Social Services In Saudi Arabia, Khadija Nasseef Dec 2004

Women And Social Services In Saudi Arabia, Khadija Nasseef

Graduate Theses, Dissertations, and Problem Reports (ETD)

This master thesis talks about social services for women that provided by social welfare agencies in Saudi Arabia. This thesis is a descriptive study that uses the content analysis as a method to investigate social services agencies that provides special services for women. This thesis also had special interest in social services that improve women's lives in Saudi Arabia. The content analysis is made on documents and brochures of 4 main social services agencies that offer services for women. The content analysis was made in term of these agencies main aim and target, their main massage, their programs for women, …

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Finite Element Analysis Of Interaction Between Actin Cytoskeleton And Intracellular Fluid In Prechondrocytes And Chondrocytes Subjected To Compressive Loading, Sundar Viswanathan Dec 2004

Finite Element Analysis Of Interaction Between Actin Cytoskeleton And Intracellular Fluid In Prechondrocytes And Chondrocytes Subjected To Compressive Loading, Sundar Viswanathan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Prechondrocytes exhibit a change in their actin cytoskeletal arrangement when subjected to loading. This study looks at the implications of the altered solid-fluid interactions due to this change. A 2-D Finite element model of a cell was developed. A solid-fluid interaction solution procedure was validated and used to determine fluid flow/pressure in a cell when subject to deformation. These values were then used to calculate fluid flow induced stresses on individual actin fibers. The results suggest that prechondrocytes alter their cytoskeletal structure to reduce stresses as a result of fluid flow due to deformation of the cell.

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Manufacturing And Evaluation Of Structural Products With Recycled Polymers, Raghuram Phani Aditham Dec 2004

Manufacturing And Evaluation Of Structural Products With Recycled Polymers, Raghuram Phani Aditham

Graduate Theses, Dissertations, and Problem Reports (ETD)

The rapid growth of Wastes from Electrical and Electronic Equipment (WEEE) can be attributed to the rapid developments in technology, leading to reduction in service life to less than 2 years in certain products. Thermoplastics such as Acrylonitrile-Butadiene-Styrene (ABS) and Polycarbonate (PC) form a significant percent of the Electronic Shredder Residue (ESR) that were used in this research to manufacture and evaluate structural products with recycled polymers.;In this research, offset blocks for highway and bridge guardrail systems were developed using recycled polymers reinforced with glass fabric as shell and discarded tire strips/wood as core materials. Optimum compression molding process parameters …

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Limiting Dns Covert Channels And Network Validated Dns, Rex D. Mccracken Dec 2004

Limiting Dns Covert Channels And Network Validated Dns, Rex D. Mccracken

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite the variety and number of network security devices and policies available, sensitive data, such as intellectual property and business data, can still be surreptitiously sent via the Internet to unscrupulous receivers. Furthermore, few security mechanisms address securing or limiting covert channels. This study defines a framework for determining a rule set to minimize covert channel capacity on the DNS protocol specifically. The information and techniques used in this study may be useful in aiding security professionals and developers with enforcing security policies on DNS and other Internet protocols.;This research resulted in the development of a rudimentary tool, referred to …

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