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Aircraft Parameter Identification For Application Within A Fault-Tolerant Flight Control System, Kerri B. Phillips
Aircraft Parameter Identification For Application Within A Fault-Tolerant Flight Control System, Kerri B. Phillips
Graduate Theses, Dissertations, and Problem Reports (ETD)
A parameter identification study was conducted to identify a detailed aircraft mathematical model for application within a fault-tolerant flight control system that aims to detect, identify, and accommodate for sensor and actuator failures. Specifically, a mathematical model was identified under nominal conditions for two aircraft platforms, and a model was developed for one platform under actuator failure conditions. These models are to be used in flight control law design and to account for actuator failures on the primary control surfaces for one of the research platforms. In order to accurately model the aircraft behavior following a control surface failure, the …
Evaluation Of The Impact Of The Creating Opportunity For Personal Empowerment (Cope) Healthy Lifestyles Thinking, Emotions, Exercise, And Nutrition (Teen) Program In A Rural High School Health Class, Teresa Ritchie
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background. More than 12.5 million children in the United States are overweight. More specifically, in 2007, 31% of 9th grade students in West Virginia were overweight. Healthy People 2010 identified obesity as among the top ten health issues and set a goal to reduce the proportion of children and adolescents who were overweight to 5%. This goal was not attained because most current interventions to prevent and treat obesity have not been effective in changing the weight status of children and adolescents. However, cognitive behavioral interventions, combined with parent education have been found to be an effective strategy in weight …
Optimization Of Operating Parameters For Minimum Mechanical Specific Energy In Drilling, Todd Robert Hamrick
Optimization Of Operating Parameters For Minimum Mechanical Specific Energy In Drilling, Todd Robert Hamrick
Graduate Theses, Dissertations, and Problem Reports (ETD)
Efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE is the measure of the amount of energy input required to remove a unit volume of rock, expressed in units of energy input divided by volume removed. It can be expressed mathematically in terms of controllable parameters; Weight on Bit, Torque, Rate of Penetration, and RPM. It is well documented that minimizing MSE by optimizing controllable factors results in maximum Rate of Penetration. Current methods for computing MSE make it possible to minimize MSE in the field only through a trial-and-error process. This work makes it possible to compute …
Transport Processes In Low Turbulence Flows Associated With Enclosing Hoods, Ertan Karaismail
Transport Processes In Low Turbulence Flows Associated With Enclosing Hoods, Ertan Karaismail
Graduate Theses, Dissertations, and Problem Reports (ETD)
Effective exhaust hoods are critical for protection of workers from airborne contaminants. The present study investigates the flow dynamics and associated contaminant dispersion in the near-wake of a worker working at a bench- top enclosing hood. The focus is primarily placed on evaluating the effects of different factors such as cross-draft, body heat and body shape on the dynamics of the wake flow and eventually on the exposure level. For this purpose, extensive two- and three-dimensional Unsteady Reynolds-Averaged Navier-Stokes (URANS) simulations are carried out using the commercial Computational Fluid Dynamics (CFD) software, called FLUENT, with various turbulence models, such as …
Influence Of Selenium On Bluegill (Lepomis Macrochirus ) In Upper Mud River Watershed, Alison M. Anderson
Influence Of Selenium On Bluegill (Lepomis Macrochirus ) In Upper Mud River Watershed, Alison M. Anderson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Selenium based criteria for aquatic ecosystems have been based on water quality measurements, but recently there has been basis to evaluate other aspects, such as whole body, dietary, and sediment levels. Mud River Reservoir, located in Lincoln County West Virginia, receives selenium input from mountain top/valley fill mining activities. The average selenium water levels for the reservoir are above the US EPA water quality standard of 5 microg/L and considered a high hazard for fish dietary consumption based on macroinvertebrate collections. The bluegill population is also a high hazard for selenium influenced reproductive impairment based on bluegill whole body and …
Ozone Induces Nerve Growth Factor Release From Rat Tracheal Epithelial Cells During An Early Postnatal Critical Period, Lynnsey A. Carrell-Jacks
Ozone Induces Nerve Growth Factor Release From Rat Tracheal Epithelial Cells During An Early Postnatal Critical Period, Lynnsey A. Carrell-Jacks
Graduate Theses, Dissertations, and Problem Reports (ETD)
Ozone, one of the major air pollutants in urban areas, produces epithelial cell injury and inflammation in the airways upon exposure. Previous studies have shown that ozone exposure leads to increased substance P (SP) expression in nerves innervating the smooth muscle in the extrapulmonary airway. Nerve growth factor (NGF), a neurotrophin, is known to increase SP expression. To determine the effect of ozone exposure on the release of NGF, a cell culture technique was developed for studying a homogenous rat tracheal epithelial cell population for analysis of NGF mRNA and protein expression. Furthermore, to determine if this effect is age-dependent, …
Outage Probability In Multimodal Networks, Ricky E. Hussmann
Outage Probability In Multimodal Networks, Ricky E. Hussmann
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the mid 1990's wireless researchers discovered that additional antennas located at the transmitter, receiver or both could help combat the unpredictable nature of the wireless channel. This field of research, known as MIMO (Multiple-Input Multiple-Output), became very active and has been thoroughly studied. Manufacturers have sought to incorporate these performance gains into their devices by including multiple transmit and receive antennas. However, as wireless devices such as mobile phones become smaller it becomes impractical to design a handset with multiple antennas.;Cooperative diversity is a technique that may be employed when device sizes are too small to incorporate a local …
Utilization Of Public Health And General Supervision Permits By Dental Hygienists In West Virginia, Lyndsey N. Gray
Utilization Of Public Health And General Supervision Permits By Dental Hygienists In West Virginia, Lyndsey N. Gray
Graduate Theses, Dissertations, and Problem Reports (ETD)
The issue of oral health in individuals has emerged as an immediate concern for many states to address, especially West Virginia. Current statistics show dental caries to be the most common chronic disease of children which has led to the development of such programs as The West Virginia Oral health Plan for 2010--2015. Plans such as this aim to develop techniques to provide improved oral care for all populations.;The purpose of the study is to examine if dental hygienists in West Virginia are utilizing their general supervision permits and dental hygiene public health permits to provide treatment to patients in …
Effect Of Service Sire On Late Embryonic And Fetal Loss In Sheep, Tammy L. Holler
Effect Of Service Sire On Late Embryonic And Fetal Loss In Sheep, Tammy L. Holler
Graduate Theses, Dissertations, and Problem Reports (ETD)
Very few authors have studied the effect of the sire on the outcome of pregnancy in sheep beyond differentiation, development, spermatogenesis, fertilization and early embryo survival. A major limitation in direct selection for increased sire competence is that males need to be selected mainly on the performance of their female relatives and females do not express lambing traits until at least one or two years of age. This selection process can be accelerated by studying prenatal survival ability of individual ram's progeny.;The objective of the present study was to identify occurrence of late embryonic and fetal mortality in relation to …
Properties Of Polyvinyl Alcohol Nanocomposites Reinforced With Cellulose Nanocrystals Of Red Oak Residues, Peter Michael Jacobson
Properties Of Polyvinyl Alcohol Nanocomposites Reinforced With Cellulose Nanocrystals Of Red Oak Residues, Peter Michael Jacobson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Cellulose is an abundant, low cost, and robust biopolymer that is possible to implement in reinforcement of composite materials. Utilizing cellulosic nanocrystals, which can be isolated from cellulose fibers, nanocomposite biofilms are currently of interest to the packaging, medical, and pharmaceutical industries. At this time, hardwood cellulosic nanocrystals and nanocomposites are understudied. Therefore, this research characterized and examined the possibility of using hardwood residues for nanocomposite formation and implementation. Red oak (Quercus rubra) heartwood and sapwood residues were collected from 2005, 2006, and 2007 harvest sites located within West Virginia and were de-lignified by acidified sodium chlorite. Cellulosic nanocrystals were …
Self-Reported Posttraumatic Stress And Borderline Personality Behaviors In Relation To Reports Of Traumatic Events, Attachment, Parental Behavior, And Social Support, Vanessa M. Jacoby
Self-Reported Posttraumatic Stress And Borderline Personality Behaviors In Relation To Reports Of Traumatic Events, Attachment, Parental Behavior, And Social Support, Vanessa M. Jacoby
Graduate Theses, Dissertations, and Problem Reports (ETD)
Borderline personality disorder (BPD) and posttraumatic stress disorder (PTSD) are conceptualized as different constructs in the DSM-IV, but research increasingly reveals an association among the symptoms of these disorders. Two relational models were examined: a Shared Risk Factor Model and a Continuum Model. In a sample of 603 college students, principle axis factoring of the Borderline Symptom List and PTSD Checklist showed minimal overlap in symptom presentation, partially supporting a Shared Risk Factor Model. Further support was established as regression analyses showed shared risk factors for reporting a greater number of BPD and PTSD behaviors, including experiencing at least one …
Effects Of Fixed-Time Reinforcement Schedules On Resurgence Of Positively Reinforced Problem Behavior, Tonya M. Marsteller
Effects Of Fixed-Time Reinforcement Schedules On Resurgence Of Positively Reinforced Problem Behavior, Tonya M. Marsteller
Graduate Theses, Dissertations, and Problem Reports (ETD)
Resurgence of problem behavior following the discontinuation of DRA interventions may be prevented by response-independent reinforcer delivery. In basic research, response-independent reinforcer delivery following DRA prevented resurgence of the initially reinforced response and maintained alternative responding. The present study evaluated if these results were generalizable humans by assessing if fixed-time (FT) reinforcer delivery following DRA would prevent resurgence of problem behavior and maintain appropriate behavior with 4 children with disabilities. For all participants, EXT following DRA produced resurgence of previously reinforced problem behavior and reduced appropriate requesting, but FT reinforcer delivery following DRA did not produce resurgence of problem behavior …
The Sharing Of And Reactions To Positive Events In Romantic Relationships, Jennifer N. Morey
The Sharing Of And Reactions To Positive Events In Romantic Relationships, Jennifer N. Morey
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study investigated positive event sharing (i.e., capitalization) in romantic relationships as well as partners' responses to participants' positive event sharing, and examined how each relates to attachment style and relationship satisfaction. Participants (aged 18--25, with 89 men and 95 women within 92 couples) completed online daily logs of positive events that occurred over a one week period, whether or not they shared those events with their romantic partners, and their reaction and their partners' reaction to those events. They also completed measures of attachment, their partner's general reactions to their positive event sharing, and support-seeking in a lab visit. …
Pain And Suicide In A Population-Based Sample, Sarra Nazem
Pain And Suicide In A Population-Based Sample, Sarra Nazem
Graduate Theses, Dissertations, and Problem Reports (ETD)
Previous research suggests that individuals who experience chronic pain are at increased risk for suicidal behaviors. No studies, however, have specifically examined the association between headaches and fatal suicide behavior. Furthermore, it remains unclear whether gender moderates the relation between pain and suicide, and whether the relation is independent of the effects of depression. The present study aimed to characterize the relation between pain (headache, back, shoulder, and neck) and suicide. Data were obtained from two sources in the Swedish Twin Registry. A total of 42,928 individuals responded to headache questions in either 1967 or 1973 for the first data …
Identification Of Design Guidelines For A Mobile Oncology Unit, Renee Melendez Thompson
Identification Of Design Guidelines For A Mobile Oncology Unit, Renee Melendez Thompson
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis will identify design considerations for future development of a mobile unit for delivery of Oncology services to those engaged directly or indirectly in cancer treatment. Mobile Oncology Units are relatively new to medical and design worlds but offer benefits as extensions of the healthcare system that provide care to those who would not normally receive it. This project targets rural communities, the elderly and those without transportation in West Virginia.
An Angler And Creel Survey Of The Walleye (Sander Vitreus ) Fishery At Summersville Reservoir, West Virginia, Dustin Shane Wichterman
An Angler And Creel Survey Of The Walleye (Sander Vitreus ) Fishery At Summersville Reservoir, West Virginia, Dustin Shane Wichterman
Graduate Theses, Dissertations, and Problem Reports (ETD)
Catch and harvest information and angler attitudes are important for management of the walleye fishery of Summersville Reservoir, WV, especially given previous estimates of high harvest proportions and low growth rates of walleyes. I used data from angler and creel surveys from November 28, 2008-October 31, 2009 to estimate monthly catch rates, harvest rates, total effort, and total catch of walleyes. Estimates were partitioned by boat anglers, bank anglers, anglers targeting walleyes, and all anglers. Also, angler attitudes were documented for fishing trip satisfaction and the sizes of "keepable" and trophy fish. A total of 84 survey days yielded 165 …
Role Of Lineaments In The Hydrogeology Of Knobly Mountain, Mineral And Grant Counties, West Virginia, Kevin P. Rega
Role Of Lineaments In The Hydrogeology Of Knobly Mountain, Mineral And Grant Counties, West Virginia, Kevin P. Rega
Graduate Theses, Dissertations, and Problem Reports (ETD)
An investigation of groundwater discharge and lineaments is presented for Knobly Mountain in Mineral and Grant counties, West Virginia. Wells, springs, and streams were mapped and characterized. Lineaments mapped using digital elevation model hillshades and 1:24,000 topographic maps were classified by region (north, central, and south), orientation, length, density, location, and distance from nearest springs and streams. Lineaments exhibit bimodal orientation perpendicular (mean = 113.1° to 122.2°) and parallel (mean = 14.7° to 32.3°) to strike and are strongly correlated with springs and stream locations; every stream was located along a lineament. Lineament density is higher in the northern part …
Controlled Substance, Ron Hollingshead
Controlled Substance, Ron Hollingshead
Graduate Theses, Dissertations, and Problem Reports (ETD)
My MFA thesis and supporting exhibition will highlight sculptural work I have created that deals directly or indirectly with circumstances surrounding personal health problems. A recent L4-5 micro-discectomy and the following complications have given much inspiration for my art making. I use this personal narrative as a jumping-off point to create object-based artwork that brings up larger, more universal themes, such as body, disability, pain, and pharmaceutical use. I will explain how the creation of artwork about the process of healing brought with it its own catharsis.
Reboot, Nick Lejeune
Reboot, Nick Lejeune
Graduate Theses, Dissertations, and Problem Reports (ETD)
I am an artist that works with technologically obsolete materials in order to elevate them to have purely aesthetic, sublime qualities. Creating my art this way has led me to profile and understand hoarders; those who collect materials that are otherwise socially useless. They collect these objects to the point where the collection act becomes an obsessive psychological disorder. This thesis will prove that while I identify with those who struggle with this disorder, my own collection tendencies lend themselves to being more related to the processes of contemporary artists and their need to reconfigure the original use of objects …
Simulation Factor Screen In Binary Response Models, Minqi Li
Simulation Factor Screen In Binary Response Models, Minqi Li
Graduate Theses, Dissertations, and Problem Reports (ETD)
To eliminate unimportant factors so that the remaining important factors can be further studied in later experimentation, screening experiments (which may be physical or simulation based) are typically performed. This thesis proposes a hybrid statistical procedure for efficient factor screening via simulation experiments. The hybrid procedure is particularly developed for cases where the system response is binary, as opposed to continuous; such a factor-screening procedure does not exist yet in the literature.;The proposed hybrid procedure integrates two screening methods: the sequential factorial design with multivariate sequential test (SFD-MT), which is newly developed in this work, and the modified controlled sequential …
The Influence Of Interface Friction And W/H Ratio On The Violence Of Coal Specimen Failure, Simon H. Prassetyo
The Influence Of Interface Friction And W/H Ratio On The Violence Of Coal Specimen Failure, Simon H. Prassetyo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Violent failures of coal pillars, known in practice as coal mine bumps, have long been a subject of investigation. Many field investigations have considered geological conditions that create high stress in the pillar as the main causative factor leading to bumps. In recent years, stress and constraint have been shown to be necessary in producing coal burst.;This research investigated the influence of interface friction and w/h ratio on the violence of coal specimen failure. In satisfying this objective, three violent failure parameters such as peak SPL, core zone failure, and ultimate stress were used to assess the violence of failure. …
Functionalization Of Buckled Graphene, Timothy C. Nelson
Functionalization Of Buckled Graphene, Timothy C. Nelson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Buckled graphene produced by the halogen based etching of 6H-SiC provides a new route for the functionalization of the graphene surface. This surface provides an important new stepping off point in the development of molecular electronics and sensors. While the graphene surface is relatively inert, the fluorinated defect sites inherent in the buckled graphene surface yield an excellent location for chemical reactions such as nucleophilic substitution. This thesis shows the utility of the fluorinated defect sites through the well characterized diazonium reaction.;Buckled graphene films were prepared on silicon carbide substrates using inductively coupled plasma and reactive ion etching, and annealed …
Class Iii Correction Using An Inter-Arch Spring Loaded Module, Robert Vanlaecken
Class Iii Correction Using An Inter-Arch Spring Loaded Module, Robert Vanlaecken
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objectives. To determine the skeletal and dental changes seen in the sagittal, vertical, and angular directions in a group of patients who had undergone treatment with an inter-arch spring loaded module, the CS2000RTM appliance. Methods. The treatment group consisted of 30 patients treated in the private practice office of Dr. Michael Williams in Gulfport, MS, (15 males, 15 females) with an average pre-treatment age of 9.6 and post-treatment age of 10.9. The average treatment time for the pooled group studied was 1.3 years. Lateral cephalometric films were collected from pre-treatment records before treatment began and from post-treatment records after CS2000RTM …
The American School Of Oboe Playing: Robert Bloom, John De Lancie, John Mack, And The Influence Of Marcel Tabuteau, Amy M. Galbraith
The American School Of Oboe Playing: Robert Bloom, John De Lancie, John Mack, And The Influence Of Marcel Tabuteau, Amy M. Galbraith
Graduate Theses, Dissertations, and Problem Reports (ETD)
The American school of oboe playing is a distinct national style that evolved during the twentieth century. It is characterized by a darker tone than other national schools and a phrasing style that emphasizes long, connected lines with nuances in tonal intensity. The style was developed by Marcel Tabuteau, and is distinguished by his modified "long scrape" reed as well as the numerical system he used to teach musical phrasing. Even today, his ideas continue to disseminate, and most American oboists can trace their pedagogical roots back to Tabuteau. Yet despite the school's evolution from one person, diversity exists. This …
Wrestling For Our Humanity: An Examination Of College Degree Choice Processes Used By Freshmen And Sophomores At West Virginia University, Cyprien N. N. Lokko
Wrestling For Our Humanity: An Examination Of College Degree Choice Processes Used By Freshmen And Sophomores At West Virginia University, Cyprien N. N. Lokko
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research examined the extent to which future job prospects, peer and parental influence and or intrinsic interest impacted the college major selection processes utilized by freshmen and sophomores. Using a mixed method approach, the researcher interviewed six college recruitment officers, administered surveys to 466 freshmen and sophomores and also conducted a document analysis of college brochures and view books all in a bid to ascertain what combination of factors define the major selection process. Data analysis revealed that economic propensity which translates into projections about future job placement, job advancement and or job security somewhat played a role in …
Ap Relationship Of The Maxillary Central Incisors To The Forehead In Adult White Males, Maggie S. Adams
Ap Relationship Of The Maxillary Central Incisors To The Forehead In Adult White Males, Maggie S. Adams
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objectives. To evaluate and compare the anteroposterior relationship of the maxillary central incisors to the forehead in adult white males with harmonious profiles and in adult white male orthodontic patients. Methods. One hundred and one photographic images of adult white males with good facial harmony (control sample) were compared with 97 photographs of adult white males seeking orthodontic treatment (study sample). All images were of the face in profile with the maxillary central incisors and the forehead in full view. The images were imported into Adobe Photoshop(TM) and resized and rotated to the upright head position. Reference lines were constructed …
Rate Of Response-Independent Events As Discriminative Stimuli, Andres Garcia Penagos
Rate Of Response-Independent Events As Discriminative Stimuli, Andres Garcia Penagos
Graduate Theses, Dissertations, and Problem Reports (ETD)
The study of stimulus rates is relevant to understanding how discrete events integrated in time come to function as a single molar unit that can be discriminated from other comparable units. Two experiments examined the roles of stimulus rates as discriminative stimuli in a conditional discrimination paradigm. Pigeons responding according to a fixed interval (FI) schedule of reinforcement were presented concurrently with pairs of stimulus rates (response-independent blackouts of the operant boxes), so that access to food was granted if the pigeons pecked a comparison key associated to each stimulus rate. One-blackout versus two-blackouts stimulus rates were used on the …
Examination Of Genotypic Variation In Aluminum Tolerance Of Populus, Ernest Smith
Examination Of Genotypic Variation In Aluminum Tolerance Of Populus, Ernest Smith
Graduate Theses, Dissertations, and Problem Reports (ETD)
Soil acidity and aluminum (Al) toxicity are major factors limiting crop yield and forest productivity worldwide. Hybrid poplar (Populus spp.) was used as a model woody tree species to assess genotypic variation in Al resistance and physiological stress responses to Al. In the first study eight hybrid crosses of P. trichocarpa, P. deltoides and P. nigra were exposed to Al in solution culture. Resistance to Al varied by genotype and hybrid cross, with P. trichocarpa x P. deltoides crosses being most resistant, P. trichocarpa x P. nigra being intermediate and P. deltoides x P. nigra being most sensitive to Al. …
Contests Over Pastoralism In The Southern Sahara And Northern Sahel, Franklin Charles Graham Iv
Contests Over Pastoralism In The Southern Sahara And Northern Sahel, Franklin Charles Graham Iv
Graduate Theses, Dissertations, and Problem Reports (ETD)
West African pastoral groups (Arab, Tuareg, Toubou, and Fulani) experience contests both within their society, and, with outside agents regarding state integration, land use and development. Pastoral leadership, neighboring sedentary groups, national governments, multinational corporations, aid organizations, and academia all influence the paths pastoralists take in their relationship with the environment, the markets they return to, the animals the shepherd, and the non-pastoral opportunities they pursue, to name a few. The social relations that exist between pastoralists and outsiders can essentially coalesce or break apart pastoral society, depending on the actions taken by the various actors mentioned. The outcomes of …
Teacher Candidate Perceptions Of Electronic Portfolios, William M. Baronak
Teacher Candidate Perceptions Of Electronic Portfolios, William M. Baronak
Graduate Theses, Dissertations, and Problem Reports (ETD)
Today, many students in higher education are considered digital natives - savvier and more experienced with technology than students in the past. In teacher preparation programs, teacher education students are commonly expected to demonstrate achievement of program goals and objectives and national teaching standards in a "portfolio." Gaining in popularity, the electronic portfolio delivers meaningful rich data in an electronic format. Much of the research on electronic portfolios has centered in higher education and has been primarily focused on the delivery of portfolios from the perspective of faculty and on the role of the portfolio in assessment from an administrative …