Digital Commons Network^™

Design And Evaluation Of Novel Attitude Estimation System Using Mems Sensors For Indoor Uas, Joshua Bruce Milam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Most small unmanned aerial systems in use today, employ extended Kalman filter sensor fusion algorithms in order to provide accurate estimations of attitude or orientation. These complex algorithms use measurements from GPS receivers and magnetometer sensors that can be rendered useless in GPS denied environments or areas of significant magnetic interference, such as inside buildings or other structures. The complexity of these algorithms makes them inaccessible for some researchers and hobbyists who wish to code their own attitude estimation algorithms. This complexity is also computationally expensive and requires processors that are powerful enough to operate the algorithms along with any …

Investigation Of Combustion Characteristics Of A Heavy-Duty Diesel Engine Retrofitted To Natural Gas Spark Ignition Operation, Jinlong Liu

Graduate Theses, Dissertations, and Problem Reports (ETD)

The conversion of existing diesel engines to natural-gas spark ignition operation by adding a gas injector in the intake manifold for fuel delivery and replacing the diesel fuel injector with a spark plug to initiate and control the combustion process can reduce U.S. dependence on petroleum imports and curtail engine-out emissions. As the conventional diesel combustion chamber (i.e., flat head and bowl-in-piston) creates high turbulence, the engine can operate leaner, which would increase its efficiency and reduce emissions. However, natural gas combustion in such retrofitted engines presents differences compared to that in conventional spark ignited engines. Subsequently, the main goal …

Characteristics Of Activated Carbons Produced From Herbaceous Biomass Feedstock, Oluwatosin Jerry Oginni

Graduate Theses, Dissertations, and Problem Reports (ETD)

Energy security and environmental protection are at the forefront of research due to the forecasted depletion of fossil fuel reserves and the growing concern of its adverse environmental impacts. The use of renewable sources for energy applications has centered on the use of biomass feedstocks and this include from herbaceous, woody, agricultural waste, forest residues and municipal wastes. The thermochemical conversion (pyrolysis) of these biomass feedstocks has potential to produce liquid fuel, a solid residue (biochar) and non-condensable gas. The biochar is primarily composed of renewable porous carbon and other inorganic compounds. The biochar is used for soil amendment, adsorption …

Differentiating Human Populations Based On K-Mer Classification Of Hand Bacteria, Thrisha Doppala

Graduate Theses, Dissertations, and Problem Reports (ETD)

Bacterial communities found in and on the human body are not only used in studying human health conditions but are also effective in differentiating individuals due to their distinct profiles. Human palm regions harbor relatively more diverse bacterial communities and are indicative of population groups, life styles, geographic locations, age groups and health conditions. Sequences extracted from hypervariable region V3 of the 16S rRNA bacterial gene of hand bacterial samples from 9 different population groups were classified into Operational Taxonomic Units (OTU) with GreenGenes reference taxonomy using RDP (Ribosomal Database Project) classifier. Frequencies of identified OTUs were used to study …

Detection Of Buried Non-Metallic (Plastic And Frp Composite) Pipes Using Gpr And Irt, Jonas Kavi

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research investigated alternative strategies for making buried non-metallic pipes (CFRP, GFRP, and PVC) easily locatable using Ground Penetrating Radar (GPR). Pipe diameters up to 12" and buried with up to 4 ft. of soil cover were investigated. The findings of this study will help address the detection problem of non-metallic pipelines and speed the adoption of composite pipes by the petroleum and natural gas industry. The research also investigated the possibility of locating buried pipes transporting hot fluids using Infrared Thermography (IRT).

Results from the study have shown that, using carbon fabric and aluminum tape overlay on non‑metallic pipes …

Habitat Suitability Of Restored Wetlands And An Investigation Of Sampling Bias For Freshwater Turtles In West Virginia, Alissa L. Gulette

Graduate Theses, Dissertations, and Problem Reports (ETD)

Loss and drainage of wetlands in the United States has been remediated in part by wetland restoration on agricultural lands through the Agricultural Conservation Easement Program (ACEP), operated by the Natural Resources Conservation Service. Freshwater turtles are important components of wetland ecosystems, where they contribute to nutrient cycling, storage, and transfer between terrestrial and aquatic systems, and function as apex predators. In 2016 and 2017, we investigated use of wetlands restored through the ACEP program in West Virginia by two common freshwater turtle species, snapping turtles (Chelydra serpentina) and painted turtles (Chrysemys picta), and obtained comparative data from reference wetlands. …

Spatial And Temporal Analysis Of Surface Water Quality In Relation To Marcellus Shale Gas Development In The Northern Panhandle Of West Virginia, Rachel Yesenchak

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pre-existing water chemistry data available from the West Virginia Department of Environmental Protection were used to examine temporal changes in surface water quality related to the onset of Marcellus Shale gas drilling activity in the state of West Virginia. Drilling is concentrated in the northwestern portion of the state. Watersheds were delineated for twelve discrete stream sampling locations in the Upper Ohio-Wheeling HUC-8 sub-basin, where shale gas drilling is prevalent. Kruskal-Wallis tests were deployed to compare pre- and post-drilling concentrations of conductivity, chloride, and total suspended solids for each location. Increased concentrations of these parameters are associated with surface water …

Using Artificial Intelligence And Machine Learning To Develop Synthetic Well Logs, Marwan Mohammed Alnuaimi

Graduate Theses, Dissertations, and Problem Reports (ETD)

There has been an increase in the need for energy in the recent past. Oil and gas stand as the source of energy that are widely used. The oil and gas reservoirs are targeted for the purposes of field development. The conventional methods of reservoir characteristics require computing techniques that are unique and complex, some of which are labor and time intensive. Mohaghegh argues that all efforts must be tried and made possible to apply Petroleum Data analytics in production and management of reservoir so as to earn a maximum return (Mohaghegh, Shale Analytics, 2017). Different methodologies have been applied …

Impact Of Next Generation Am-Pet Helmet And Support Structure On Subjects' Neck, Samantha Melroy

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ambulatory Micro-dose Positron Emission Tomography (AM-PET) is a portable PET brain scanner that does not require patients to remain still but allows them to move as they regularly would over the course of the scan (i.e. clapping hands, walking in place, and other stationary movements). Traditional PET scanners require patients to remain still for an extended duration in a small confined cavity. This is problematic for those who have conditions such as Parkinson's and Autism; in many cases, they must be sedated before the test can be performed. West Virginia University's AM-PET Helmet allows for these regular human movements to …

Creating The Need To Serve: How West Virginia Spontaneous Disaster Relief Volunteers' Motivations And Experiences Influence Their Willingness For Continued Volunteerism*, Erin Hudnall

Graduate Theses, Dissertations, and Problem Reports (ETD)

Spontaneous volunteerism, or emergent volunteer behavior, is characterized by an individual's actions of impulsively offering volunteer services immediately following the occurrence of a natural disaster or community tragedy, such as a flood or terrorist attack. This type of volunteerism differs from traditional volunteer activities that are usually preplanned and not related to a recent tragedy. It is unclear what types of motivations spur individuals to volunteer after a disaster, whether spontaneous volunteers' experiences lead to willingness for continued volunteerism in the future, and whether motivations and experiences differ significantly by context. To study this phenomenon, spontaneous volunteers who offered help …

Cardiovascular Mortality And Oral Antidiabetic Drugs: Protocol For A Systematic Review And Network Meta- Analysis, Rashmi Goyat, James Douglas Thornton, Xi Tan, George A. Kelley

Clinical and Translational Science Institute

Introduction Cardiovascular diseases are the leading cause of morbidity and mortality among individuals with diabetes. Despite the beneficial effects of antidiabetic drugs (ADDs) in terms of lowering haemoglobin A1c, several ADDs have been shown to increase the risk of cardiovascular events. Given the high prevalence of cardiovascular disease among individuals with diabetes, it is important to weigh the benefits of ADDs against their cardiovascular safety. Therefore, the objective of the current study is to conduct a systematic review with network meta-analysis to compare the effects of different oral pharmacological classes of ADDs on cardiovascular safety. Methods and analysis Randomised clinical …

Utah V. Strieff: Lemonade Stands And Dragnet Policing, Guy Padula

West Virginia Law Review

No abstract provided.

Between Description And Prescription: Law, Wittgenstein, And Constitutional Faith, Gregory Brazeal

West Virginia Law Review

The occasions on which ajudge or legal scholar has peered into the depths of the Constitution and found, to her surprise, that the Constitutionrequiresthe opposite ofher ideologicalpreferences, are extremely rare. Yetjudges andscholarscontinuetopresenttheirconclusionsastheproduct ofideologicallyneutralreasoning,while often criticizingthe ideologicalbiasin thereasoningoftheiropponents.A Wittgensteinianperspectiveonthenatureof legaldiscoursecanshed lighton thispuzzlinglypersistentstateofaffairs. Legal discourse, includingconstitutionalargument, is partly defined by the blending ofdescriptive reasoningabout what the law is with prescriptivereasoningabout what the law ought to be. To reach a legal conclusion based on a blend of descriptiveandprescriptivereasoning,andtophrasethis conclusion aspurely descriptive, as legal actors habitually do, is not to violate the rules of legal discourse, but to abide by them. Taking this conception …

Ebolamania And Equal Protection Of Health Care Workers Under Rational Basis With Bite Review, Jennifer Jolly-Ryan

West Virginia Law Review

No abstract provided.

Professional Sports Events, Concerts, And Urban Place Based Policy: Evidence From The Staples Center, Iuliia Chikish, Brad R. Humphreys, Crocker H. Liu, Adam D. Nowak

Economics Faculty Working Papers Series

We analyze the relationship between sports events and concerts, important hospitality demand drivers and key components of many urban renewal projects, in the Staples Center in Los Angeles, an arena home to three pro teams, and nearby hotel performance, exploiting exogenous daily variation in the timing of games and concerts from 2002 to 2017. Results show a small positive impact on revenue per available room at hotels within one mile of the arena and an osetting decrease at hotels located one to four miles away. Granting nearby hotels exemptions from Los Angeles hotel taxes reduces potential tourism-generated hotel tax revenue …

Archiving Constituent Services Data Of The U.S. Congress, Danielle Emerling, John Caldwell, Hope Bibens, Natalie Bond, Alison White

Faculty & Staff Scholarship

The Society of American Archivists Congressional Papers Section formed the CSS/CMS Task Force in August 2016 to study the issue of constituent correspondence management systems, and this report addresses the ongoing development and use of constituent services data in Congress; the vendors, systems, and functionality; and the obstacles faced by collecting repositories. It provides an overview of research conducted with analog constituent correspondence and the vast potential for research with constituent data. The report recommends a vested advocacy coalition to support management guidelines in member offices, in commercial vendors working with congressional offices, and in collecting repositories, and it calls …

Loss Aversion, Upset Preference, And Sports Television Viewing Audience Size, Brad R. Humphreys, Leví Pérez

Economics Faculty Working Papers Series

A growing body of research examines the effect of loss aversion (LA) on consumers’ decisions to watch or attend sporting events. Much of this research focuses on live game attendance. In contrast to the predictions of uncertainty of outcome hypothesis (UOH), loss-averse consumers prefer watching either potential upsets, or dominant performances by strong favorites, to events with uncertain outcomes. We test for LA vs. UOH effects in television viewing audience data for free over-the-air broadcasts of 304 Spanish football matches from 2008/09 to 2015/16. This setting generates substantial variation home team win probabilities because of the presence of Real Madrid …

An Overview Of Sports Betting Regulation In The United States, Brad R. Humphreys

Economics Faculty Working Papers Series

The United States employs an ad hoc, unconventional method of regulating sports betting, banning it almost everywhere while granting a monopoly to firms in a single state, Nevada. This approach encourages illegal sports betting markets, ignores negative externalities, and generates welfare losses among the large population of responsible recreational gamblers. I review the current state of sports betting regulation in the U.S. and assess its economic viability in advance of the Supreme Court of the United States decision on the landmark Christie v. National Collegiate Athletic Association case.

An Electronic Health Record Data-Driven Model For Identifying Older Adults At Risk Of Unintentional Falls, Adam Baus, Jeffrey Coben, Keith Zullig, Cecil Pollard, Charles Mullett, Henry Taylor, Jill Cochran, Traci Jarrett, Dustin Long

Clinical and Translational Science Institute

Screening for risk of unintentional falls remains low in the primary care setting because of the time constraints of brief office visits. National studies suggest that physicians caring for older adults provide recommended fall risk screening only 30 to 37 percent of the time. Given prior success in developing methods for repurposing electronic health record data for the identification of fall risk, this study involves building a model in which electronic health record data could be applied for use in clinical decision support to bolster screening by proactively identifying patients for whom screening would be beneficial and targeting efforts specifically …

Auditory Object Perception: A Neurobiological Model And Prospective Review, Julie A. Brefczynski-Lewis, James W. Lewis

Clinical and Translational Science Institute

Interaction with the world is a multisensory experience, but most of what is known about the neural correlates of perception comes from studying vision. Auditory inputs enter cortex with its own set of unique qualities, and leads to use in oral communication, speech, music, and the understanding of emotional and intentional states of others, all of which are central to the human experience. To better understand how the auditory system develops, recovers after injury, and how it may have transitioned in its functions over the course of hominin evolution, advances are needed in models of how the human brain is …

Algebra, Wvu Mathematics Department

M.S. Advanced and Ph.D. Entrance Exams

No abstract provided.

40ar/39ar Ages And Zircon Petrochronology For The Rear Arc Of The Izu-Bonin-Marianas Intra-Oceanic Subduction Zone, Graham Dm Andrews

Faculty & Staff Scholarship

Long-lived intra-oceanic arcs of Izu-Bonin-Marianas (IBM)-type are built on thick, granodioritic crust formed in the absence of pre-existing continental crust. International Ocean Discovery Program Expedition 350, Site U1437, explored the IBM rear arc to better understand continental crust formation in arcs. Detailed petrochronological (U–Pb geochronology combined with trace elements, oxygen and hafnium isotopes) characterizations of zircon from Site U1437 were carried out, taking care to exclude potential contaminants by (1) comparison of zircon ages with ship-board palaeomagnetic and biostratigraphic ages and 40Ar/39Ar geochronology, (2) analysing zircon from drill muds for comparison, (3) selectively carrying out in situ analysis in petrographic …

Novel Rat Tail Discitis Model Using Bioluminescent Staphylococcus Aureus, Phillip A. Bostian, Jonathan M. Karnes, Shari Cui, Lisa J. Robinson, Scott D. Daffner, Michelle R. Witt, Sanford E. Emery

Clinical and Translational Science Institute

Management of spondylodiscitis is a challenging clinical problem requiring medical and surgical treatment strategies. The purpose of this study was to establish a rat model of spondylodiscitis that utilizes bioluminescent Staphylococcus aureus, thus permitting in-vivo surveillance of infection intensity. Inocula of the bioluminescent S. aureus strain XEN36 were created in concentrations of 102 CFU/0.1 mL, 104 CFU/0.1 mL, and 106 CFU/0.1 mL. Three groups of rats were injected with the bacteria in the most proximal intervertebral tail segment. The third most proximal tail segment was injected with saline as a control. Bioluminescence was measured at baseline, 3 days, and weekly …

Catholic Institutions In Court: The Religion Clauses And Political-Legal Compromise, Angela C. Carmella

West Virginia Law Review

No abstract provided.

Highway To Hell: The Privatized Prison Transportation Industry And The Long Road To Reform, Jaden P. Rhea

West Virginia Law Review

No abstract provided.

Ordering Criminal Restitution: An Exercise In Overstepping Statutory Authority, Christopher W. Maidona

West Virginia Law Review

No abstract provided.

Pinging Into Evidence: The Implications Of Historical Cell Site Location Information, Alexandra C. Smith

West Virginia Law Review

No abstract provided.

Comparison Of Photon Volumetric Modulated Arc Therapy, Intensity-Modulated Proton Therapy, And Intensity- Modulated Carbon Ion Therapy For Delivery Of Hypo-Fractionated Thoracic Radiotherapy, Alexander Chi, Lien-Chun Lin, Sijin Wen, Haijuan Yan, Wen-Chien Hsi

Clinical and Translational Science Institute

Purpose: The aim of the present study was to compare the dose distribution generated from photon volumetric modulated arc therapy (VMAT), intensity modulated proton therapy (IMPT), and intensity modulated carbon ion therapy (IMCIT) in the delivery of hypo-fractionated thoracic radiotherapy. Methods and materials: Ten selected patients who underwent thoracic particle therapy between 2015 and 2016 were re-planned to receive a relative biological effectiveness (RBE) weighted dose of 60 Gy (i.e., GyE) in 15 fractions delivered with VMAT, IMPT, or IMCIT with the same optimization criteria. Treatment plans were then compared. Results: There were no significant differences in target volume dose …

Are Fair Weather Fans Affected By Weather? Rainfall, Habit Formation And Live Game Attendance, Qi Ge, Brad Humphreys, Kun Zhou

Economics Faculty Working Papers Series

We analyze habit formation in sports attendance utilizing rainfall as an unexpected, transitory shock to attendance costs. Using attendance data from Major League Baseball (MLB) and NOAA weather data, we analyze the impact of variation in game day weather conditions on current and future MLB attendance. The empirical strategy permits identification of both the formation and persistence of habit from exogenous weather shocks. Past adverse weather shocks increase future attendance by about 200 fans per game. Our study contributes to the literature developing empirical evidence of habit formation in the field and provides policy implications for optimal ticket pricing strategies.

The Effect Of Superstar Players On Game Attendance: Evidence From The Nba, Brad R. Humphreys, Candon Johnson

Economics Faculty Working Papers Series

Economic models predict that \superstar" players generate externalities that increase attendance and other revenue sources beyond their individual contributions to team success. We investigate the effect of superstar players on individual game attendance at National Basketball Association games from 1981/82 through 2013/14. Regression models control for censoring due to sellouts, quality of teams, unobservable team/season heterogeneity, and expected game outcomes. The results show higher home and away attendance associated with superstar players. Michael Jordan generated the largest superstar attendance externality, generating an additional 5,021/5,631 fans at home/away games.