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Molecular Cytogenetic Evaluation Of Uveal Melanoma Cell Lines And Archival Tissue, Jason Scott White
Molecular Cytogenetic Evaluation Of Uveal Melanoma Cell Lines And Archival Tissue, Jason Scott White
Graduate Theses, Dissertations, and Problem Reports (ETD)
Uveal melanoma is the most common intraocular tumor in adults and often results in unilateral blindness and/or death. Previous cytogenetic characterizations of this tumor have consistently revealed chromosomal abnormalities involving chromosomes 3, 6, and 8; reports of other abnormalities vary in frequency. We further defined cytogenetic abnormalities of this tumor using molecular cytogenetic techniques on 10 uveal malignant melanoma cell lines and 100 formalin-fixed paraffin-embedded (FFPE) tumors.;The synthesis of comparative genomic hybridization (CGH) and spectral karyotyping (SKY) results revealed that chromosomal rearrangement plays a significant role in the generation of DNA sequence copy number abnormalities throughout the genome, but none …
Effects Of Artificial Neural Networks Characterization On Prediction Of Diesel Engine Emissions, Azadeh Tehranian
Effects Of Artificial Neural Networks Characterization On Prediction Of Diesel Engine Emissions, Azadeh Tehranian
Graduate Theses, Dissertations, and Problem Reports (ETD)
More than a century after its invention, diesel remains the fuel of choice for buses and freight trucks. Diesel exhaust contains three gases that are regulated by the United States Environmental Protection Agency (EPA), as well as particulate matter (PM). There is a societal need both to lower emissions and to predict or model emissions more accurately for inventory purposes. Engine modeling, and real time control are the most indispensable steps towards lowering engine emissions, and it is argued that this modeling can be achieved by implementation of Artificial Neural Networks (ANN). Effects of ANN design, architecture, and learning parameters …
Study On Candle Filter Surface Regeneration Characteristics At Room Temperature, Venkatesh Vasudevan
Study On Candle Filter Surface Regeneration Characteristics At Room Temperature, Venkatesh Vasudevan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Ceramic barrier filtration is a leading technology employed in hot gas filtration. The deposited ash on these filters is removed by a process known as surface regeneration. The objective of this research has been to utilize the room temperature testing facility (RTTF), to study the surface regeneration process at room temperature. The face velocity of the fluidized gas, the regeneration pressure of the back pulse and the time to build up ash on the surface of the candle filter were identified as the important parameters to be studied. Two types of ceramic candle filters were used in the study. The …
Telecommunication Of Stabilizing Signals In Power Systems, Guillaume Julien Raux
Telecommunication Of Stabilizing Signals In Power Systems, Guillaume Julien Raux
Graduate Theses, Dissertations, and Problem Reports (ETD)
Deregulation of the power industry has occurred at a rapid pace, opening some promising competition between suppliers. The result of this competition should be to the benefit of customers.;Telecommunication plays a crucial role in integrating systems and ensuring smooth operation by way of exchanging data and information between various systems that are responsible for monitoring and control of the grid. For example, a Power System Stabilizer (PSS) controller could be placed at one of the generators and requires remote measurements. All the communication schemes within the network generate delays that are characterized in this project using OPNET Modeler. OPNET Modeler …
Circulation Control For Download Wake Reduction On A Scaled V-22 Model, Chad Alan Riba
Circulation Control For Download Wake Reduction On A Scaled V-22 Model, Chad Alan Riba
Graduate Theses, Dissertations, and Problem Reports (ETD)
West Virginia University has developed a circulation controlled model of the V-22 wing to reduce the size of the download in the wake region brought upon by the airflow from the proprotors. The techniques being used in this experiment are the implementation of blowing slots across the leading edge and trailing edge, activation of one or both of the blowing devices, and adjustment of slot velocity. The results of the study show a decrease in the download force through the incorporation of the Coanda Effect around the leading and trailing edges. The induction of this phenomenon will move the separation …
Development Of A Test Facility To Evaluate Hot Gas Filtration Characteristics Of A Candle Filter, Juan Pablo Rincon
Development Of A Test Facility To Evaluate Hot Gas Filtration Characteristics Of A Candle Filter, Juan Pablo Rincon
Graduate Theses, Dissertations, and Problem Reports (ETD)
Hot gas particulate filtration is a basic component in advanced power generation systems such as Integrated Gasification Combined Cycle (IGCC) and Pressurized Fluidized Bed Combustion (PFBC). These systems require effective particulate removal to protect the downstream gas turbine and also to meet environmental emission requirements. The ceramic barrier filter is one of the options for hot gas filtration. Hot gases flow through ceramic candle filters depositing ash on the outer surface of the filter. After this cleaning process there may be some residual ash remaining on the filter surface. This residual ash layer may grow after many cycles of filtering, …
Loss Count, Sonya Corin Russomanno
Loss Count, Sonya Corin Russomanno
Graduate Theses, Dissertations, and Problem Reports (ETD)
My prints encompass themes of loss of past experiences, poetics, repetition, and feeling. By remembering facts from past experiences, one can recall how a particular moment felt. My intention when producing a piece of work is to generalize themes of loss, time, and memory by using visual features of pattern, space, and repetition of forms to exemplify feelings in relation to loss, time, and memory. This thesis statement will first address themes of loss, time, memory, and the visual devices that are employed with one intention, that they exemplify features crucial in my work. In addition, I will address the …
Enhancing The Effectiveness Of The Utility Energy Supply Chain In Integrated Steel Manufacturing, Girish Sudhir Bhave
Enhancing The Effectiveness Of The Utility Energy Supply Chain In Integrated Steel Manufacturing, Girish Sudhir Bhave
Graduate Theses, Dissertations, and Problem Reports (ETD)
The iron and steel industry is energy intensive. The steel industry accounts for 2--3 of total US energy consumption. The energy costs account for 12--15% of the total cost of manufacturing steel. Cogeneration is done by most of the integrated steel producers for on-site electricity generation. The steel industries use different utility systems, and 90% of the industry uses standard steam boilers, steam turbines and BOP (Basic Oxygen Process). The boilers produce steam which is used for power generation and production processes. The system consumes oil, natural gas and blast furnace gas (BFG) to produce this steam and electricity. It …
Design And Analysis Of A Modified Power-Split Continuously Variable Transmission, Andrew John Fox
Design And Analysis Of A Modified Power-Split Continuously Variable Transmission, Andrew John Fox
Graduate Theses, Dissertations, and Problem Reports (ETD)
The CVT has advantages over the conventional stepped ratio transmission because of its smooth, stepless shifting, simplified design, and a potential for reduced fuel consumption and tailpipe emissions. The power split CVPST has a potentially higher mechanical efficiency than a conventional shaft-to-shaft CVT, but it is unknown whether that efficiency can be improved. For the CVPST, the branch control circuit that contains the CVT can be disengaged at the ring gear for a 1:1 overall transmission ratio, which will interrupt the power flow through the CVT. This could increase overall efficiency because the branch control circuit is no longer transmitting …
Inhalation Exposure System For Diesel Exhaust Particulates, Jay Michael Sherman
Inhalation Exposure System For Diesel Exhaust Particulates, Jay Michael Sherman
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objectives of this research were twofold. First, a Hazelton 2000 Inhalation Chamber was modified to minimize the amount of diesel exhaust particulate (DEP) needed for animal inhalation exposures. Second, instrumentation was evaluated for aerosolizing DEP, monitoring the mass concentration and size distribution, and determining the uniformity of the aerosol.;The Jet-O-Mizer jet mill produced a single mode DEP mass median diameter (MMD) of 0.33 mum while maintaining a relatively steady mass concentration of 10 mg/m3. The uniformity of a carbon black aerosol was found to vary from 9.9 mg/m3 in the front part of the chamber, to 10.4 mg/m3 in …
In Situ Determination Of Strength And Stiffness Of Structural Lumber And Composite Products, Jody D. Gray
In Situ Determination Of Strength And Stiffness Of Structural Lumber And Composite Products, Jody D. Gray
Graduate Theses, Dissertations, and Problem Reports (ETD)
Wood is prone to deterioration that reduces its load bearing capabilities. Periodically, older wooden members need to be inspected to ensure the strength and stability of the structure. Historically these inspection methods have consisted of visual inspections lacking scientific basis.;Non-destructive testing (NDT) methods were investigated by this research for the possibility of evaluating modulus of rupture and modulus of elasticity of built-in wooden members. Methods included stress wave timing for dynamic MOE determination and screw withdrawal force (SWF) for MOR and density prediction. Standard ASTM testing procedures were used to determine the actual properties and statistical relationships between these variables …
Adaptive Fault Diagnosis In Interactive Electronic Technical Manuals (Ietms), Rabih Faysal Kraidli
Adaptive Fault Diagnosis In Interactive Electronic Technical Manuals (Ietms), Rabih Faysal Kraidli
Graduate Theses, Dissertations, and Problem Reports (ETD)
An Interactive Electronic Technical Manual (IETM) is a technical manual that is prepared in digital format to provide information about the diagnostics and maintenance of complex systems.;In this thesis we present a methodology for adaptive fault diagnosis in IETMs, a methodology that constantly adapts the fault diagnosis procedure, according to the experience of the user performing the diagnosis. We develop a framework of adaptation that constantly monitors user behavior, and "learns" about the fault and its possible causes as the system is used, hence making it easier to perform such procedures, which increases efficiency of usage of such a manual, …
Time, Temperature And Frequency Viscoelastic Behavior Of Commercial Polymers, Michael John Julius
Time, Temperature And Frequency Viscoelastic Behavior Of Commercial Polymers, Michael John Julius
Graduate Theses, Dissertations, and Problem Reports (ETD)
This work involves an experimental investigation of creep behavior of commercial polymers used as encased liners in deteriorated sewer pipelines with emphasis on characterizing the effects of physical aging, temperature, and frequency. The procedure for finding the shift rate, mu, is based on Struik's protocol. Time-temperature superposition (TTSP) of short-term data, at different temperatures, was done. Effective Time Theory (ETT) is used to find the effective time, lambda, as a function of real time, t, from the master curve obtained by TTSP. Dynamic Mechanical Analysis (DMA) tests were done to get complex relaxation modulus, E*(o), as a function of frequency. …
Comparison Of Concentrations In The Breathing Zone, Santosh Raghavendra Kulkarni
Comparison Of Concentrations In The Breathing Zone, Santosh Raghavendra Kulkarni
Graduate Theses, Dissertations, and Problem Reports (ETD)
The concentrations in the "breathing zone" were analyzed on three human subjects in simulating work conditions. The experiments were carried out in a wind tunnel having 40&feet; x 12&feet; x 9&feet; dimensions. Ethanol vapor mixed with nitrogen was used as a tracer gas. Samples were taken at the forehead, adjacent to the nose (nose), the mouth, neck, chest, right lapel, left lapel. Nose was sampled at l liter per minute (lpm) and 0.15 lpm at different times, while the others were sampled at 0.15 lpm at two different wind tunnel velocities. The source was released at naval height for each …
Modeling And Controls For A Laser Glass Cutting Machine Workcell Robot, Asif Mushtaq Mohammad
Modeling And Controls For A Laser Glass Cutting Machine Workcell Robot, Asif Mushtaq Mohammad
Graduate Theses, Dissertations, and Problem Reports (ETD)
The SCARA (Selective Compliance Assembly Robot Arm)-Type Nimbl loader junior robot includes a four-degree of freedom robot manipulator arm. This thesis deals with three main areas of robot behavior: kinematics, dynamics and controls for the purpose of improving the performance of the Laser Glass Cutting Machine (LGCM) workcell. The thesis deals with developing kinematic and dynamic models of this robot arm and their application to task planning of this robot.;Task planning is done for SCARA-Type Nimbl loader robot, in which the robot starts from pick position to place position. A 4-3-4 joint trajectory was generated for pick-to-place path for the …
How Do Adult Beginning Spanish Students Perceive Their Teacher's Written Feedback On Their Compositions?, Flavia Aoni Costa
How Do Adult Beginning Spanish Students Perceive Their Teacher's Written Feedback On Their Compositions?, Flavia Aoni Costa
Graduate Theses, Dissertations, and Problem Reports (ETD)
Most of the literature on written feedback to date has attended to feedback techniques and the effects of such approaches on students' writing skills. Little emphasis has been placed on students' perspectives on teachers' written feedback. For this reason, the present study investigated how adult beginning students react to their teacher's written feedback on their Spanish compositions. The study used qualitative methods of data collection---questionnaires for the students, interviews with teachers and students and participant observations---in order to explore their reactions and perceptions. The findings show that the general positive reaction students had in relation to their teacher's written feedback …
Pronunciation Difficulties In The Consonant System Experienced By Arabic Speakers When Learning English After The Age Of Puberty, Ana Marina Do Val Barros
Pronunciation Difficulties In The Consonant System Experienced By Arabic Speakers When Learning English After The Age Of Puberty, Ana Marina Do Val Barros
Graduate Theses, Dissertations, and Problem Reports (ETD)
The current study investigates the difficulties Arabic speakers may encounter when pronouncing English consonants. All participants are adults who have been in contact with the American culture for at least four years. The results show that the Arabic speakers in this study had difficulties to pronounce eight English consonants. The results also demonstrate that the difficulties experienced by Arabic speakers may differ depending on the country they come from. For instance, a person from Kuwait may experience different problems with English consonants when compared to a person from Egypt. This study provides insights and assists ESL teachers with the development …
Reinforcement And Punishment During Programmed Instruction, Stephen C. Scherer
Reinforcement And Punishment During Programmed Instruction, Stephen C. Scherer
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recommendations for improving answer accuracy during programmed instruction have included the use of punishment to decrease the rate of students' responding and to prevent careless mistakes. The effects of punishment during programmed instruction, however, have not been clearly identified. There is evidence that punishment increases attention and decreases response rates during learning tasks, but other effects on student responding, including escape from the learning task, have not been systematically examined. The present study was designed to systematically examine the effects of punishment as well as extinction during programmed instruction. Four college students were recruited to earn money while working on …
Correlation Of The Use Of Computers By Education Faculty With National Standards For Preservice Students, Robin T. Twery
Correlation Of The Use Of Computers By Education Faculty With National Standards For Preservice Students, Robin T. Twery
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this research study was to provide information to faculty, administrators and state departments of education about the level of integration of computer technology into teacher education programs. The stated problem of this research was to determine the correlation of the use of computers by education faculty with national standards for preservice teachers. A review of the literature identified the continuing growth of computer use and a growing acceptance of national standards for computer literacy in K--12 and higher education settings. To determine the extent of computer use among education faculty, a three-part survey was developed. It including …
Mesomechanics Of Fabric Reinforced Composites, Thomas Miles Damiani
Mesomechanics Of Fabric Reinforced Composites, Thomas Miles Damiani
Graduate Theses, Dissertations, and Problem Reports (ETD)
Fiber reinforced plastic composites are an attractive alternative to traditional materials because of, among other things, the ability to concurrently design the materials and ratios to fit a specific need. One method of fiber reinforcement is through the used of woven fabrics, which provide more balanced overall strengths and durability during fabrication. The weaving and interlacing of the fibers, however, adds a level of complexity when predicting material properties and strengths using micromechanical models. Traditional models have mostly been based on classical thin lamination theory, and this method is limited in its scope and applicability for woven fabric composites. This …
The Effects Of Cancer On Interpersonal Relationships., Alicia M. Vandine
The Effects Of Cancer On Interpersonal Relationships., Alicia M. Vandine
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of these studies was to examine the impact of cancer on relationship satisfaction, equity, relationship maintenance strategies, and loneliness. The researcher proposed cancer would significantly impact the way individuals with cancer, and their friends/family, view their relationship. Participants in study one were 122 undergraduate students; study two participants were 18 adult pairs (36 individuals) from various Mid-Atlantic States. Results for study one and study two showed individuals in relationships affected by cancer are less satisfied and use fewer relationship maintenance strategies than individuals in relationships not affected by cancer. There was a significant inverse relationship between satisfaction, relationship …
The Role Of Parenting Stress, Difficult Child Behavior, And The Use Of Routines In Management Of Pediatric Asthma., Melissa Demore
The Role Of Parenting Stress, Difficult Child Behavior, And The Use Of Routines In Management Of Pediatric Asthma., Melissa Demore
Graduate Theses, Dissertations, and Problem Reports (ETD)
The main purpose of this study was to evaluate the role of child behavior problems, parenting distress, and child routines in relation to (a) family management of pediatric asthma and (b) children’s adherence to daily maintenance medication. Participants included 30 asthmatic children and their families. Assessment included questionnaires, an interview, and a medication dose-count monitor. Mean percent adherence rates obtained were comparable to the existing literature using similar methods. Scores on measures of parental distress, difficult child behavior, and child care routines were within the normal range. Although data suggested effective asthma management, no significant relations were found between this …
The Relationship Between Fibromyalgia And Emotional Expressivity And Its Influence On Locus Of Control, Ways Of Coping, And Quality Of Life., Avril D. Zaharoff
The Relationship Between Fibromyalgia And Emotional Expressivity And Its Influence On Locus Of Control, Ways Of Coping, And Quality Of Life., Avril D. Zaharoff
Graduate Theses, Dissertations, and Problem Reports (ETD)
The impact of fibromyalgia on quality of life is well documented. Quality of life issues confront individuals with fibromyalgia daily. For these individuals, coping with the challenges to obtain effective treatment, can become a daunting process. Feeling a sense of control over their condition is important to sustaining a reasonable quality of life. The purpose of this study was to test a theoretically based model describing the factors that influence quality of life in individuals with fibromyalgia. The theoretical (hypothesized) model suggested that impact of fibromyalgia, emotional expressivity, locus of control, and coping process, all influenced quality of life. A …
The Relationship Between The Emotional Intelligence Competencies Of Principals In The Kanawha County School System In West Virginia And Their Teachers' Perceptions Of School Climate., Leonard J. Allen
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine if a significant relationship exists between teachers' perceptions of school climate and their principals' emotional intelligence competencies. The CFK Ltd. School Climate Profile was used to assess teachers' perceptions of school climate. Principals' emotional intelligence competencies were measured by the BarOn Emotional Quotient Inventory (EQ-i). Teachers and principals were all employees of the Kanawha County School System in West Virginia. The entire population of principals (N = 68) and the entire population of school-based classroom teachers (N = 2081) were provided surveys. One hundred percent of the principals participated and 57% (N …
A Methodology For Determining The Character Of Mine Roof Rocks., Gerald Lee Finfinger
A Methodology For Determining The Character Of Mine Roof Rocks., Gerald Lee Finfinger
Graduate Theses, Dissertations, and Problem Reports (ETD)
The underground mining industry is dependent upon the implementation of an engineering design and strategy to adequately and safely control the surrounding rock mass, with support of the roof rocks being of the greatest concern. Primary roof support systems use mechanical structures, such as roof bolts, roof trusses and cable bolts, to stiffen and control the roof rocks. Each of these systems requires the drilling of a small-diameter hole into the roof which is used to insert the mechanical structure. The structures are designed for specific geological and geotechnical characteristics and the more information that can be collected on these …
Reducing Pausing During Rich -To -Lean Schedule Transitions: Effects Of Reinforcer Context And Cue Accuracy., Chad Michael Galuska
Reducing Pausing During Rich -To -Lean Schedule Transitions: Effects Of Reinforcer Context And Cue Accuracy., Chad Michael Galuska
Graduate Theses, Dissertations, and Problem Reports (ETD)
Transitions from rich-to-lean conditions of reinforcement often produce extended pausing in operant responding and may underlie maladaptive behavior in natural settings. Reducing their disruptive effects is of basic and applied interest. Experiment 1 assessed the effects of the overall reinforcement rate on pausing. Pigeons were exposed to a multiple fixed-ratio (FR) 50 FR 100 schedule. The number of rich (FR 50) and lean (FR 100) components varied across conditions. Pausing during the rich-to-lean transition was inversely related to the overall rate of reinforcement for two of three pigeons. As the number of rich components comprising the multiple schedule increased, pausing …
Zbigniew Brzezinski: The Political And Academic Life Of A Cold War Visionary., Patrick G. Vaughan
Zbigniew Brzezinski: The Political And Academic Life Of A Cold War Visionary., Patrick G. Vaughan
Graduate Theses, Dissertations, and Problem Reports (ETD)
This work examines the political and academic career of Zbigniew Brzezinski. Born in Warsaw in 1928 Brzezinski was a personification of the trials of interwar Poland that would culminate in the combined Nazi-Soviet invasion that would trigger World War II. The son of a Polish diplomat the young Brzezinski witnessed the war from a diplomatic outpost in Montreal where he developed an academic interest in the affairs of the Soviet Union. In 1950 Brzezinski moved on to Harvard where he gained an academic reputation examining the phenomenon of "totalitarianism" and the fragmenting nuances of the Soviet empire in Eastern Europe. …
Computer Aided Management Of Processes (Camp) At The National Environmental Service Center., Wiselin Dhas Mathuram
Computer Aided Management Of Processes (Camp) At The National Environmental Service Center., Wiselin Dhas Mathuram
Graduate Theses, Dissertations, and Problem Reports (ETD)
All business operations, either manufacturing or service, have certain processes they follow to accomplish their goals. These processes change with time due to financial performance, emerging market opportunities, or erosion of market share and they often need to be reengineered to improve their performance. This research aims to analyze and improve the product review process at the National Environmental Service Center (NESC). A supporting organizational structure is proposed. Process improvement was conducted by employee interviews, and a database was developed to integrate information flow between departments. The new software tool facilitates the workflow and helps to track, monitor, and manage …
The Effects Of Superimposing The Same Vs. Qualitatively Different Food On Responding Maintained By A Variable-Interval Schedule Of Reinforcement., Jessie-Sue Milo
The Effects Of Superimposing The Same Vs. Qualitatively Different Food On Responding Maintained By A Variable-Interval Schedule Of Reinforcement., Jessie-Sue Milo
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examined the effects of response-independent delivery of same vs. qualitatively different food than the reinforcer on rats' lever pressing. During baselines, a variable-interval schedule delivered either pellets or milk. A fixed-time schedule then was superimposed which delivered either response-independent pellets or milk. The order of reinforcer and responseindependent food presentation was counterbalanced across subjects, such that in four different conditions each rat was exposed to each combination of reinforcer and response-independent food presentations. Similarity of the response-independent food to the reinforcer did not differentially disrupt response rates. Response-independent milk decreased response rates more than response-independent pellets. Postreinforcement pausing …
Thermomechanical Properties Of Molybdenum Alloys With Dispersing Spinel And Magnesium Oxide Particles., Dongxiang Sun
Thermomechanical Properties Of Molybdenum Alloys With Dispersing Spinel And Magnesium Oxide Particles., Dongxiang Sun
Graduate Theses, Dissertations, and Problem Reports (ETD)
A number of silicide-based intermetallics are currently being developed for high temperature applications (>1000°C) in advanced fossil energy combustion systems. These alloys consist typically of Mo3Si, Mo5SiB2, and a molybdenum solid solution phase. The Mo5SiB2 phase is required for oxidation resistance. The ductile molybdenum solid solution phase provides toughening. However, a fundamental limitation to their practical utilization is the requirement to maintain the desired high-temperature mechanical properties while also achieving the necessary high-temperature oxidation/hot corrosion resistance. The key challenge of the alloy development is to find the right combination of good oxidation and creep resistance, together with the necessary …