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Automatic Hydraulic Fracturing Design For Low Permeability Reservoirs Using Artificial Intelligence, Andrei Sergiu Popa
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 …
Linear Engine Development For Series Hybrid Electric Vehicles, Csaba Toth-Nagy
Linear Engine Development For Series Hybrid Electric Vehicles, Csaba Toth-Nagy
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation argues that diminishing oil reserves, concern over global climate change, and desire to improve ambient air quality all demand the development of environment-friendly personal transportation. In certain applications, series hybrid electric vehicles offer an attractive solution to reducing fuel consumption and emissions. Furthermore, linear engines are emerging as a powerplant suited to series HEV applications. In this dissertation, a linear engine/alternator was considered as the auxiliary power unit of a range extender series hybrid electric vehicle. A prototype linear engine/alternator was developed, constructed and tested at West Virginia University. The engine was a 2-stroke, 2-cylinder, dual piston, direct …
Augmentation Of The Differentiation Response To Antitumor Quinolines, Rayhana Rahim-Bata
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 …
Pain-Related Acceptance And Physical Impairment In Individuals With Chronic Pain, Kevin E. Vowles
Pain-Related Acceptance And Physical Impairment In Individuals With Chronic Pain, Kevin E. Vowles
Graduate Theses, Dissertations, and Problem Reports (ETD)
Treatments using acceptance-based approaches have been utilized for a variety of health care concerns with data regarding their application to a chronic pain population recently emerging. These approaches may be particularly suited to chronic pain as they target potentially harmful avoidance and ineffective pain control strategies. Acceptance of chronic pain is related to psychosocial constructs generally (e.g., depression, pain-related anxiety); however, its relation to the overt behavioral variables associated with such states remains unevaluated. The present investigation assessed the specific effects of an acceptance-based versus control-based instructional set on demonstrated physical impairment in 74 individuals with chronic low back pain. …
K--12 Teachers' Technology Integration In Benedum Collaborative Professional Development Schools, Sabah Karayegen-Giraldo
K--12 Teachers' Technology Integration In Benedum Collaborative Professional Development Schools, Sabah Karayegen-Giraldo
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study investigated how K--12 teachers and interns in West Virginia University's Professional Development Schools (PDS) are using technology as a tool to enhance their students' education. The study addressed the use of technology as a classroom tool for research, communication, productivity, and problem-solving as outlined by the National Technology Standards for students. Eleven research questions framed this study. Comparisons across grade levels (elementary, middle, and high schools) and subject areas (English, mathematics, science, and social studies) were included. Descriptive and inferential statistics were used as quantitative research methods. The study involved 327 teachers and 102 intern students in these …
Limiting Dns Covert Channels And Network Validated Dns, Rex D. Mccracken
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 …
Adaptive Video Segmentation, Nagamani Banda
Adaptive Video Segmentation, Nagamani Banda
Graduate Theses, Dissertations, and Problem Reports (ETD)
The efficiency of a video indexing technique depends on the efficiency of the video segmentation algorithm which is a fundamental step in video indexing. Video segmentation is a process of splitting up a video sequence into its constituent scenes. This work focuses on the problem of video segmentation. A content-based approach has been used which segments a video based on the information extracted from the video itself. The main emphasis is on using structural information in the video such as edges as they are largely invariant to illumination and motion changes. The edge-based features have been used in conjunction with …
Hydrologic Investigation Of Three Constructed Mitigation Wetlands And One Natural Wetland In West Virginia, Scott A. Copen
Hydrologic Investigation Of Three Constructed Mitigation Wetlands And One Natural Wetland In West Virginia, Scott A. Copen
Graduate Theses, Dissertations, and Problem Reports (ETD)
The goal of this study was to increase the probability of success for future mitigation wetland projects by performing a hydrologic investigation at three constructed mitigation wetland sites and one natural reference wetland site. In addition, a numerical groundwater model was developed for a portion of one of the constructed mitigation wetlands.;Hydrologic, meteorologic, topographic, and geotechnical data were collected at three constructed mitigation wetlands and one reference natural wetland. Hydrologic data were collected using monitoring wells, piezometers, automated water level recorders, and a water level meter. Meteorologic data were obtained from the National Oceanic and Atmospheric Administration's weather station in …
Tcp/Ip Stack Fingerprinting For Patch Detection In A Distributed Windows Environment, Balaji Ganesan
Tcp/Ip Stack Fingerprinting For Patch Detection In A Distributed Windows Environment, Balaji Ganesan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Patch Management has become important in every system administrator's work profile. A missing patch can be essentially considered a vulnerability as the hackers make use of the knowledge of the vulnerability from the security bulletin and attempt attacks for that vulnerability. An efficient patch management solution is necessary to counter known vulnerabilities. For this an inventory listing of the patches installed in each system called a patch audit helps the system administrators know the patch status and install only the necessary patches. An important problem in patch auditing is that there may be many systems in a network for which …
Compatible Taper And Volume Equations For Yellow-Poplar In West Virginia, Lichun Jiang
Compatible Taper And Volume Equations For Yellow-Poplar In West Virginia, Lichun Jiang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Yellow-poplar (Liriodendron tulipifera L.) is an important source of raw material for the forest products industry in West Virginia. Accurate taper and volume functions are an important component of most inventory systems for use in estimating upper stem diameter, form, and tree volume. Compatible taper and volume functions can be derived through the mathematical integration of taper functions. Non-linear regression techniques were employed to estimate the parameters in both the taper and volume functions while accounting for correlated error structures. This technique was used to simultaneously minimize the error in both the taper and volume functions. The data included 44 …
Finite Element Simulation Of Creep Behavior In Enhanced Refractory Material For Glass Furnace, Praveen Kumar Kuntamalla
Finite Element Simulation Of Creep Behavior In Enhanced Refractory Material For Glass Furnace, Praveen Kumar Kuntamalla
Graduate Theses, Dissertations, and Problem Reports (ETD)
An important focus in the glass melting industry, which is an energy intensive industry, is towards greater output and increased energy efficiency in the glass melting process. Conversion to the oxy-fuel-fired furnace from the traditional air-fuel-fired furnace is one means to achieve greater output and energy efficiency, since the capital cost per ton of glass pulled is approximately 58% less for the oxy-fuel-fired furnace compared to the air-fuel-fired furnace.;The main disadvantages of the oxy-fuel-fired furnace are its higher operating temperature, possibly to more than 2200°F, and its alkali partial pressure that hasten the corrosion of refractory materials, particularly in silica …
Developing The Portability Indices And The Portable Code Generator, Gregory E. Mundy
Developing The Portability Indices And The Portable Code Generator, Gregory E. Mundy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Portability is recognized as a highly desirable characteristic of contemporary software design. However, research in the area has not been forthcoming in recent years and much of the work related to the field is ad hoc and speculative at best.;This study attempted to establish a framework for deriving a probabilistic measure of software portability that may be useful in aiding developers to make key design decisions that will result in some quantifiable level of portability while minimizing the cost of incorporating portable design into the software production process.;The research also explored the potential portability benefits that may be derived from …
Control System Design For A C-130 Ro-Ro Sensor Deployment Platform, Robert Paul Hayes
Control System Design For A C-130 Ro-Ro Sensor Deployment Platform, Robert Paul Hayes
Graduate Theses, Dissertations, and Problem Reports (ETD)
A WVU team of engineers designed and built a palletized system that will be used to deploy surveillance sensors from a C-130 cargo airplane. There will be two pallets, one that will house the Operator Station and one that will carry a mechanical arm with a Sensor Pod, where the sensors will reside. This pallet will be placed on the C-130 rear door, which will be opened while in flight. The mechanical arm is designed to rotate the Sensor Pod underneath the door so the sensors can observe the ground.;Computer/Electrical engineers were asked to design the control circuit for the …
Dynamic Modal Analysis And Optimization Of C-130 Project Oculus' Mechanical Arm/Pod Sensor Deployment System Using The Finite Element Method, Adam C. Naternicola
Dynamic Modal Analysis And Optimization Of C-130 Project Oculus' Mechanical Arm/Pod Sensor Deployment System Using The Finite Element Method, Adam C. Naternicola
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Department of Defense (DoD) and the United States Army National Guard (USARNG) have sponsored West Virginia University's Center for Industrial Research Applications (CIRA) to design, fabricate, test and optimize an articulating, mechanical arm/pod system. The mechanical arm/pod system will be designed to accommodate a 500-pound sensor payload deployable in flight from a C-130 Hercules military aircraft used for counter narco-terrorism efforts. During the overall deployment (translation and rotation) of the mechanical arm/pod system and in the final resting position for optimal operating conditions for the data acquisition sensors (DAS), the mechanical structure will be subjected to a variety of …
Permeability Prediction From Well Log Data Using Multiple Regression Analysis, Janaina Luiza Lobato Pereira
Permeability Prediction From Well Log Data Using Multiple Regression Analysis, Janaina Luiza Lobato Pereira
Graduate Theses, Dissertations, and Problem Reports (ETD)
An accurate reservoir description is very important in reservoir evaluation, and permeability prediction is the key for a successful characterization. However, despite its importance, obtaining permeability values through the reservoir is not a trivial task. It is costly and time-consuming.;Many are the techniques available in the literature, involving correlations between core and log data that provide means to obtain permeability.;The present work describes how to predict permeability through the statistical analysis multiple regression having log data and limited core data, making it possible to expand the prediction to uncored wells. It also takes into consideration the attributes of flow unit …
Honeycomb Fiber-Reinforced Polymer Sandwich Composites For Development Of Aquaculture Raceway Systems, Avinash Vantaram
Honeycomb Fiber-Reinforced Polymer Sandwich Composites For Development Of Aquaculture Raceway Systems, Avinash Vantaram
Graduate Theses, Dissertations, and Problem Reports (ETD)
It is argued that the utilization of impaired mine waters abundant in WV and other mid-Appalachian states for fish culture can substantially increase aquaculture economic development. The primary limitation to the effective utilization of discharged waters is the lack of suitable fish culture tanks that can be easily installed in rugged terrains surrounding mine water treatment plants, where cast-in-place concrete tanks cannot be constructed. Therefore, Fiber-Reinforced Polymer (FRP) sandwich materials offer an economical option for production of light, transportable and durable fish culture raceway systems. This study is concerned with the development and evaluation of prototype fish culture tanks using …
Effects Of Various Phytase Concentrations In Diets With Low-Phytate Corn On Broiler Chick Performance And Metabolism, Nicole J. Baker
Effects Of Various Phytase Concentrations In Diets With Low-Phytate Corn On Broiler Chick Performance And Metabolism, Nicole J. Baker
Graduate Theses, Dissertations, and Problem Reports (ETD)
Research indicates a reduction of phosphorus content in fecal excreta with the supplementation of phytase to corn-soybean meal based diets or with the use of low phytate corn (LPC) in broilers. This study examined how 0--3 wk broiler chicks are impacted by concomitant phytase supplementation with LPC (0.136% phytate phosphorus (PP) by analysis) in the diet. Various levels of phytase from either 2500 or 5000 FYT/g of Peniophora lycii phytase product were used as experimental treatments. Efficacy of treatments was determined using a response curve created with increasing levels of monocalcium phosphate. Following a 6-day pretest, 576 broiler chicks were …
Effect Of Grain Particle Size, Feed Form And Pellet Texture On Broiler Performance, Carcass Quality, True Metabolizable Energy, Feed Passage Time And Preference, Amy S. Parsons
Graduate Theses, Dissertations, and Problem Reports (ETD)
Treatments consisted of five mash diets (781 microns, 950 microns, 1,042 microns, 1,109 microns, 2,242 microns) and two pelleted diets (water (soft) and binder (hard) inclusion). Water and binder addition produced similar pellet durability (90.4% and 86.2% respectively) and fines (44.5% and 40.3% respectively).;Broilers fed mash diets exhibited decreased live weight gain and breast yield with increased gizzard, compared to broilers fed pelleted diets. As diet particle size increased, feed intake and gizzard yield increased and feed efficiency decreased. Broiler true metabolizable energy increased then decreased when diet particle size increased. Hard pellets increased live weight gain. Fines of the …
Psychophysical Studies Of Binocular And Spatial Vision In Humans With Anisometropic And Strabismic Amblyopia, Ritwick Agrawal
Psychophysical Studies Of Binocular And Spatial Vision In Humans With Anisometropic And Strabismic Amblyopia, Ritwick Agrawal
Graduate Theses, Dissertations, and Problem Reports (ETD)
Amblyopia is a common developmental visual disorder. Previous studies of amblyopia have delineated spatial and binocular deficits. However debate exists about how the strabismic and anisometropic subtypes may differ. The central hypothesis is that the two subtypes differ with regard to binocular integration functions. Strabismic subjects may show severe impairments of binocular integration due to a history inter-ocular suppression, which predicts the pattern of monocular deficits. Seven anisometropic, six strabismic and seven control subjects were tested psychophysically with four monocular tests and three binocular tests. Results indicated that the degree of loss of Vernier acuity was larger than that predicted …
Axial Ligand Binding Equilibria As Probes Of The Effective Steric Bulk Of Substituted Tetraarylporphyrins, Michael Craig Thomas
Axial Ligand Binding Equilibria As Probes Of The Effective Steric Bulk Of Substituted Tetraarylporphyrins, Michael Craig Thomas
Graduate Theses, Dissertations, and Problem Reports (ETD)
Equilibrium constants and thermodynamic data are reported for coordination of various axial ligands to the zinc(II) complexes of tetra( p-tolyl)porphyrin, tetra(3,5-bis(biphenylmethoxy)phenyl)porphyrin, tetra(2,6-(perfluorobenzoxy)phenyl)porphyrin, and tetra(2,6-di(methoxy)phenyl)porphyrin in toluene at 25.0°C. With respect to coordination of a planar ligand to a zinc(II) porphyrin, the equilibrium constant varied with the identity of the meso-substituent in the order 3,5-bis-(biphenylmethoxy)phenyl > p-tolyl > 2,6-(perfluorobenzoxy)phenyl >> 2,6-di-(methoxy)phenyl. With respect to coordination of a non-planar ligand to a zinc(II) porphyrin, the order was 3,5-bis(biphenylmethoxy)phenyl > p-tolyl >> 2,6-(perfluorobenzoxy)phenyl ≈ 2,6-di(methoxy)phenyl. Thermodynamic data for the coordination of 3- and 4-phenylpyridine to zinc tetra(2,6-di(methoxy)phenyl) porphyrin show a greater loss of entropy than for the coordination …
Influence Of A Three-Week Wildlife Education Curriculum On Knowledge And Attitudes Of South Carolina's Marlboro County High School Ninth And Tenth-Grade Biology Students, Diane M. Krishon
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to assess the influence of a three-week wildlife education curriculum on knowledge and attitudes of ninth and tenth-grade biology students in South Carolina. A three-week wildlife curriculum was incorporated into three high school biology classes in the same semester. The students were pre-tested and post-tested for knowledge and attitudes. The results indicate that the three-week curriculum had a positive influence on knowledge but did not influence wildlife attitudes. However, a substantial correlation occurred between the post-test attitude and knowledge scores, indicating that as students' knowledge increased, their attitudes towards wildlife and environmental education became …
Mechanism Of Action Of Nsc3852, A Breast Cancer Differentiation Agent, Anna Martirosyan
Mechanism Of Action Of Nsc3852, A Breast Cancer Differentiation Agent, Anna Martirosyan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The development of tumor cell differentiation agents is new initiative in cancer treatment research. The goal of this project was to identify breast cancer differentiation agents by screening quinoline ring-containing compounds obtained form National Cancer Institute Compound Library. Of six differentiation-inducing quinolines NSC3852 was chosen as a "lead" compound. Our results demonstrate that NSC3852 is an inhibitor of HDAC activity in HeLa and MCF-7 cells nuclear extracts. NSC3852 caused superoxide generation in MCF-7 cells in a NADPH oxidase-dependent fashion, and NSC3852-induced oxidative stress led to the shift in a redox potential of the cells to a more oxidized state. This …
Essays On The Economics Of Religion, Charitable Giving, And Youth Crime, Brian J. Osoba
Essays On The Economics Of Religion, Charitable Giving, And Youth Crime, Brian J. Osoba
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation includes essays on the application of economics to areas previously thought to be the domain of sociology, psychology, and political science. Chapter 1 introduces the paths that economics has blazed into the areas of religion, charitable giving, crime, and government formation. The second chapter examines the functions that risk and time preference play in the strength of an individual's religious belief. The results illustrate that individuals treat religion like other goods exhibiting uncertainty and a delayed expected future payoff. Chapter 3 investigates the role of prestige and warm glow in the market for charitable giving. The results indicate …
Effect Of Contextual Variables On Mealtime Problem Behavior In The Natural Environment, Ellen J. Mccartney
Effect Of Contextual Variables On Mealtime Problem Behavior In The Natural Environment, Ellen J. Mccartney
Graduate Theses, Dissertations, and Problem Reports (ETD)
A growing body of research suggests that contingency-based interventions are effective for decreasing mealtime problem behavior and increasing the amount and variety of food accepted. To date, two published studies have examined the effects of specific contextual variables (food type and texture or session pre-feeding) on mealtime behavior. Research with problem behavior occurring outside of mealtime suggests that problem behavior may often be under the control of contextual or contextual variables. The purpose of this study was to further evaluate the effect of contextual variables on mealtime behavior. Four children and their caregivers served as participants in both Phases 1 …
Assessment Of A Novel Interview Technique For Improving Young Children's Forensic Reports, Rebecca G. Ryan
Assessment Of A Novel Interview Technique For Improving Young Children's Forensic Reports, Rebecca G. Ryan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The present study examined a novel interview technique and its effectiveness when administered to 3- to 7-year-old children. This novel interview technique isolated the effects of source-monitoring training (SMT). All of the children in the present study viewed a video of a magic show and after a one-week delay were asked both misleading and accurate questions about the magic show video. After another one-week delay the children were randomly assigned to either the SMT group or the control group. The SMT group received source-monitoring training prior to the final interview about the magic show video. The control group received no …
Graph Minor, Jianbing Niu
Graph Minor, Jianbing Niu
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this paper, we present three results: (1) Let G be a (k + 2)-connected non-(k - 3)-apex graph where k ≥ 2. If G contains three k-cliques, say L 1, L2, L3, such that |Li ∩ Lj| ≤ k - 2 (1 ≤ i < j ≤ 3), then G contains a Kk +2 as a minor. (2) Let G be a 6-connected claw-free graph. If delta(G) ≥ 7 and G contains three disjoint 5-cliques, say Ll, L2, L3, then G contains a K7 as a minor. (3) There is a function h : N → N, such that, for every 4-connected graph G with minimum degree at least five embedded in a surface with Euler genus g and face-width at least h(g), every longest circuit of the graph G has a chord.
Local And Regional Impairment Of Fish Assemblages In A Mined Appalachian Watershed, Jason Gregory Freund
Local And Regional Impairment Of Fish Assemblages In A Mined Appalachian Watershed, Jason Gregory Freund
Graduate Theses, Dissertations, and Problem Reports (ETD)
I used the Cheat River watershed, West Virginia, as a model system to examine the regional impacts of extensive localized stream impairment. Acid mine drainage (AMD) in the Cheat River watershed provided a unique opportunity to test the hypothesis that regional biological condition can be impacted through multiple local sources of degradation. Acid mine drainage is the result of the interaction among pyrite-rich coal, oxygen, and water. This interaction produces a solution that is generally low in pH and buffering capacity and high in heavy metals and sulfate and is toxic to aquatic life. Acid mine drainage also has the …
Estimating Net Photosynthesis And Productivity Of A Loblolly Pine Forest Grown With Carbon Dioxide Enrichment, Clint J. Springer
Estimating Net Photosynthesis And Productivity Of A Loblolly Pine Forest Grown With Carbon Dioxide Enrichment, Clint J. Springer
Graduate Theses, Dissertations, and Problem Reports (ETD)
I examined the long-term effects of elevated CO2 on the leaf chemistry and photosynthesis of four species growing in the understory and two species growing in the overstory at the Duke Forest FACE experiment. I then used these measurements to parameterize a process based forest productivity model, PnET-II, in order to model the net primary productivity of the portions of the forest growing under ambient and elevated CO2. Finally, I performed a greenhouse study that examined the effects of elevated CO 2 and water availability on the growth and biomass allocation of loblolly pine seedlings from four distinct geographic locations. …
Operant Conditioning In Older Adults With Alzheimer's Disease, Adam P. Spira
Operant Conditioning In Older Adults With Alzheimer's Disease, Adam P. Spira
Graduate Theses, Dissertations, and Problem Reports (ETD)
Behavioral interventions are commonly implemented to manage agitation in older adults with dementia. However, the extent to which operant conditioning can occur in this population is unclear. The present study used a button-pressing task to evaluate the sensitivity of the responding of individuals with probable Alzheimer's disease to changes in schedules of reinforcement. Results indicate that operant conditioning can occur in older adults with AD. Specifically, three participants with AD exhibited responding that was highly sensitive to a transition from a fixed interval schedule to an extinction schedule. One participant's responding was sensitive to a more subtle transition. Comparison data …
Silicon Carbide Epitaxial Growth Using Methylsilanes As Gas Sources, Charlie Y. Peng
Silicon Carbide Epitaxial Growth Using Methylsilanes As Gas Sources, Charlie Y. Peng
Graduate Theses, Dissertations, and Problem Reports (ETD)
Large area and high quality SiC substrates are required for many applications. The goal of this research is to develop novel methods of growing epitaxial silicon carbide (SiC) on 6H-SiC and silicon (Si) substrates while extending our understanding of the growth mechanisms and the effects of key growth parameters. High temperature hydrogen-etching procedures for preparing atomically-stepped 6H-SiC substrates suitable for epitaxial growth were also developed.;This dissertation presents results of both homoepitaxial SiC growth on 6H-SiC substrates and heteroepitaxial growth on Si substrates by gas source molecular beam epitaxy. The experimental variables included gas species, molecular flux, growth time, and substrates …