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Spatiotemporal Controls And Scaling Of Stream Water Quality Across The East Coast Of U.S.A, Shakil Ahmed
Spatiotemporal Controls And Scaling Of Stream Water Quality Across The East Coast Of U.S.A, Shakil Ahmed
Graduate Theses, Dissertations, and Problem Reports (ETD)
Stream water quality and ecosystem health are controlled by a multitude of complex, interacting anthropogenic and natural processes. A generalized understanding of stream water quality dynamics under diverse hydro-climatic and biogeochemical conditions therefore still remains elusive, particularly in the context of coastal urban/natural environments. This dissertation focuses to investigate the major spatiotemporal controls of stream water quality, and leverages the knowledge to investigate stream biogeochemical-ecological similitude (parametric reduction), scaling, and emergent patterns across the East Coast of U.S.A. Total nitrogen (TN), total phosphorus (TP), chlorophyll-a (Chla), and dissolved oxygen (DO) were used to represent the stream water quality. Pearson correlation …
Influence Of The Lewis Number And Boundary Conditions On Finger Flame Acceleration, Mohammed Alawi Alkhabbaz
Influence Of The Lewis Number And Boundary Conditions On Finger Flame Acceleration, Mohammed Alawi Alkhabbaz
Graduate Theses, Dissertations, and Problem Reports (ETD)
Influence of the Lewis Number and Boundary Conditions on Finger Flame Acceleration Mohammed AlKhabbaz One of the mechanisms of premixed flame acceleration in pipes is devoted to the following scenario: an initially hemispherical flame embryo, ignited at a closed end of a tube or a channel with one end open, at a tube/channel centerline, eventually acquires a convex, finger-like shape. This is accompanied by powerful flame acceleration, which lasts until the flame skirt contacts a sidewall of the tube/channel and is followed by flame deceleration and formation of a concave, "tulip" flame shape. While this phenomenon has been observed and …
Assessment Of Surgical Guide Accuracy Utilizing A Digital Workflow, Nicole Irene Andreini
Assessment Of Surgical Guide Accuracy Utilizing A Digital Workflow, Nicole Irene Andreini
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objectives: To determine the accuracy of placing implants using a digital workflow. Variables were compared to see if there was an effect on implant position accuracy. These included bone level (BL) versus bone level tapered (BLT) implants, positioning of implants adjacent to tooth support versus further across an edentulous ridge, and impact of the surgical guide requiring adjustment to fully seat. Furthermore, two methods of post-operative assessment were compared to evaluate consistency of each approach.;Methods: A typical work up for digital implant planning was performed on a sectioned pig jaw. The DICOM CBCT file and IOS STL file were imported …
Bayesian Spatio-Temporal Analysis Of Road Traffic Crashes, Amin Azimian
Bayesian Spatio-Temporal Analysis Of Road Traffic Crashes, Amin Azimian
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Evaluation And Testing Of Eye, Nose, And Mouth Protection For Biological Hazards To Support A Consensus Standard, Jeremy R Gouzd
Evaluation And Testing Of Eye, Nose, And Mouth Protection For Biological Hazards To Support A Consensus Standard, Jeremy R Gouzd
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Vision-Based Road Defect Detection And Classification For Impact Effect Mitigation Using Adaptive Suspensions, Shane M Haught
Vision-Based Road Defect Detection And Classification For Impact Effect Mitigation Using Adaptive Suspensions, Shane M Haught
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Automated Analysis Of Polypharmacy Using Prescription Drug Claims Data, Shahad Nagoor
Automated Analysis Of Polypharmacy Using Prescription Drug Claims Data, Shahad Nagoor
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
… Like Animals., Brandon Schnur
… Like Animals., Brandon Schnur
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Persistence And Characteristics Of Calculus I Students In Stem Disciplines, Xiangming Wu
Persistence And Characteristics Of Calculus I Students In Stem Disciplines, Xiangming Wu
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Combustion Analysis Of An Off-Road Spark Ignition Gaseous Fuel Engine, Allan Yao
Combustion Analysis Of An Off-Road Spark Ignition Gaseous Fuel Engine, Allan Yao
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Dietary Intake And Body Composition Changes During A 12-Week Weight Loss Trial In Middle-Aged And Older Men, Allison Marie Morris
Dietary Intake And Body Composition Changes During A 12-Week Weight Loss Trial In Middle-Aged And Older Men, Allison Marie Morris
Graduate Theses, Dissertations, and Problem Reports (ETD)
Middle-aged adults suffer from the highest rates of obesity in the nation. Obesity is not only a risk factor for cardiovascular-related chronic disease, it is also associated with decreased functional status in aging populations. Depletion of lean mass is a concerning consequence of intentional weight loss. However, efforts to attenuate loss of lean mass with weight loss are often limited to older adults. Understanding body composition changes that occur during intentional weight loss and factors to limit the loss of lean mass during weight loss in middle aged adults are needed reduce and prevent adverse outcomes in old age. The …
Conductance Calculations For Semiconductor-Superconductor Majorana Structures, John Stenger
Conductance Calculations For Semiconductor-Superconductor Majorana Structures, John Stenger
Graduate Theses, Dissertations, and Problem Reports (ETD)
Majorana zero modes (MZMs), also called Majorana bound states (MBSs), are zeroenergy mid-gap modes localized near boundaries and topological defects in one- and twodimensional topological superconductors. These zero-energy modes have attracted significant attention in recent years because of their unique properties, particularly their non- Abelian exchange statistics and their ability to encode quantum information non-locally. These properties make the MZMs an ideal platform for fault-tolerant topological quantum computation. This type of quantum memory is robust against local perturbations, since the information is encoded non-locally, while the information processing, which can be done, for example, by braiding the MZMs, is topologically …
Fatigue Performance Of Uncoated And Galvanized Composite Press-Brake-Formed Tub Girders, Robert M. Tennant
Fatigue Performance Of Uncoated And Galvanized Composite Press-Brake-Formed Tub Girders, Robert M. Tennant
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Short Span Steel Bridge Alliance (SSSBA) is a group of bridge and culvert industry leaders (including steel manufacturers, fabricators, service centers, coaters, researchers, and representatives of related associations and government organizations) who have joined together to provide educational information on the design and construction of short span steel bridges in installations up to 140 feet in length. Within the SSSBA technical working group, a modular, shallow press-brake-formed steel tub girder was developed. This new technology consists of cold-bending standard mill plate width and thicknesses to form a trapezoidal box girder. The steel plate can be uncoated or galvanized steel, …
A Lab-Based Study Of N95 Ffrs Against Cigarette Smoke Under Varying Concentrations And Sealing Conditions, Jacob Davis
A Lab-Based Study Of N95 Ffrs Against Cigarette Smoke Under Varying Concentrations And Sealing Conditions, Jacob Davis
Graduate Theses, Dissertations, and Problem Reports (ETD)
Respirators are a common form of protection when working in environments where workers are exposed to harmful agents. One exposure that has not been rigorously tested is cigarette smoke. Air sampling was conducted to test the effectiveness of four different respirators N95 Respirators for various concentrations of cigarette smoke and seal conditions and for different respirators. The Moldex 2200, Moldex 2300 (exhalation valve), Gerson 1730, and 3M 8210V (Exhalation valve) were used for testing. The set concentrations were 100,000: 200,000: and 400,000 cm3 with an error allowance of 20% for each concentration. Different flow rates (15, 30, 50, and 85 …
The User Experience Redesign Of A Product Instruction Manual Using The Poka Yoke Principle, Ephraim A. Pittore
The User Experience Redesign Of A Product Instruction Manual Using The Poka Yoke Principle, Ephraim A. Pittore
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this research is to address the issues associated with user experience in consumer products, particularly in the introduction phase of consumer product acceptance. Instructional manuals serve the role of educating new users on how to assemble or operate a new product, aiming to bridge the gap between the intended use idealized by the designer and the actual use that a consumer would intuitively perform. Historically however, instruction manuals have been known to be confusing and not usful.;The design of a toy spider instruction manual was analyzed using sequential explanatory method to determine the effectiveness of the instruction …
The Role Of Interleukin-12 And Exosomes In The Dynamic Interplay Of Cancer And The Immune System, Christina Nicole Nikki Byrne-Hoffman
The Role Of Interleukin-12 And Exosomes In The Dynamic Interplay Of Cancer And The Immune System, Christina Nicole Nikki Byrne-Hoffman
Graduate Theses, Dissertations, and Problem Reports (ETD)
Melanoma and breast cancers account for a large number of cancer diagnoses and deaths, with 1 in 28 and 1 in 8 developing melanoma or breast cancer, respectively, in their lifetime. T Lymphocytes play a pivotal role in the immune system response to cancers and are known to evade the immune system by a variety of mechanisms, including modulation of cytokine function. A cytokine important for the function of T lymphocytes, Interleukin-12, and modulation of its Janus Kinase and activators of transcription (JAK-STAT) signaling pathway, plays a role in the immune response to tumors, especially melanoma. We examined the role …
Urban Exile: City Poetry By Modern American Women, Hatley Clifford
Urban Exile: City Poetry By Modern American Women, Hatley Clifford
Graduate Theses, Dissertations, and Problem Reports (ETD)
Urban Exile: City Poetry by Modern American Women examines women's experience of urbanism in the early twentieth century, as depicted in the poetry of four modernist American women writers: Edna St. Vincent Millay, Amy Lowell, Evelyn Scott, and Lola Ridge. I bring to light a common experience of urban exile: a persistent state of insecurity, displacement, damage, and marginalization of women in cities. My work brings women and American women's poetry into the critical conversation about city literature, a conversation that has mostly focused on the experience of men in cities told by male writers. Recuperating the theme of urban …
Evaluation Of Wvuteach: Enrollment, Retention, And Students' Intentions, Catherine Garner
Evaluation Of Wvuteach: Enrollment, Retention, And Students' Intentions, Catherine Garner
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background/Purpose: Mathematics and science achievement of K-12 students in the United States is lagging the achievement of students in other developed countries. A shortage of highly qualified teachers in the areas of science, technology, mathematics, and engineering (STEM) is a contributing factor to lower achievement. One solution is to provide an efficient means for STEM students to earn a teaching certification without adding time to their current four-year degree programs. In 2015, West Virginia University introduced WVUteach, a program designed to encourage students in STEM majors to earn their teaching certifications while they are earning their degrees in their major …
The Policy Dynamics Of The Trafficking Victims Protection Act (2000), Samantha E. Godbey
The Policy Dynamics Of The Trafficking Victims Protection Act (2000), Samantha E. Godbey
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examines the creation and implementation of the Trafficking Victims Protection Act 2000 (TVPA). This research builds on the literature in the area of the policy-making process, specifically focusing on the issue attention cycle, agenda setting, and implementation. This study begins with a focus on the role the media plays in framing the issue, turns to a consideration of Congress and the passage of the TVPA, and concludes with an examination of the implementation of the act through executive branch use of sanctions. I suggest that human trafficking was framed as a criminal justice issue by both the media …
Effect Of Nano-Pore Wall Confinements On Non-Ideal Gas Dynamics In Organic Rich Shale Reservoirs, Nupur Gupta
Effect Of Nano-Pore Wall Confinements On Non-Ideal Gas Dynamics In Organic Rich Shale Reservoirs, Nupur Gupta
Graduate Theses, Dissertations, and Problem Reports (ETD)
The advancements in horizontal well drilling and multistage hydraulic fracturing technology enabled us to unfold major sources of hydrocarbon trapped in ultra-tight formations such as tight sands and organic rich shales. Tremendous gas production from these reservoirs has transformed today's energy landscape. To effectively optimize the hydrocarbon production from these ultra-tight formations, it is essential to study and model the fluid transport and storage sealed in multiscale pore structure of these formations, i.e. micro-, meso- and macro-pores. In shale gas reservoirs, Kerogen, the finely dispersed organic nano-porous material with an average pore size of less than 10 nm holds bulk …
A Low-Cost Normalized Difference Vegetation Index (Ndvi) Payload For Cubesats And Unmanned Aerial Vehicles (Uavs), Steven Hard
A Low-Cost Normalized Difference Vegetation Index (Ndvi) Payload For Cubesats And Unmanned Aerial Vehicles (Uavs), Steven Hard
Graduate Theses, Dissertations, and Problem Reports (ETD)
The focus of this research has been the design and fabrication of a Normalized Difference Vegetation Index (NDVI) payload configuration. This unique payload employs low-cost commercial off-the-shelf (COTS) hardware and equipment to assess photosynthetic activity and vegetation health through remote sensing on Cubesat or Unmanned Aerial Vehicle (UAV) platforms. The proposed NDVI imaging payload is comprised of three main subsystems: an electrical system, a software system, and a hardware system. The electrical system includes a custom designed printed circuit board (PCB), a single cell 3.7 V lithium-polymer battery, voltage regulator circuitry components, and wiring harnesses and connectors. The software system …
Spatial Fourier Transform For Blind Detection Of Radio Observations Of Rotating Radio Transients, Xiaoqian He
Spatial Fourier Transform For Blind Detection Of Radio Observations Of Rotating Radio Transients, Xiaoqian He
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this thesis we propose a new blind algorithm, which we call Energy in Transformed Data (ETD), for the detection of isolated astrophysical pulses. Unlike the conventional algorithm, which requires de-dispersion, integration over frequency channels and matched filtering, the ETD algorithm detects pulses in a space reciprocal to the space of filterbank data. The ETD algorithm is implemented in three steps: (1) it applies the Spatial Fourier Transform (SFT) to filterbank data, (2) it evaluates the energy of signal in the transformed space, and (3) it compares the value of the total energy to a threshold. If the energy in …
An Exploration Of Diversity And Inclusion In Introductory Physics, Rachel J. Henderson
An Exploration Of Diversity And Inclusion In Introductory Physics, Rachel J. Henderson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Diversity and inclusion has been a concern for the physics community for nearly 50 years. Despite significant efforts including the American Physical Society (APS) Conferences for Undergraduate Women in Physics (CUWiP) and the APS Bridge Program, women, African Americans, and Hispanics continue to be substantially underrepresented in the physics profession. Similar efforts within the field of engineering, whose students make up the majority of students in the introductory calculus-based physics courses, have also met with limited success. With the introduction of research-based instruments such as the Force Concept Inventory (FCI), the Force and Motion Conceptual Evaluation (FMCE), and the Conceptual …
Prediction Of Thrombus Formation In Ladder Network And Stability Of Thrombus In A Bifurcation, Hari Hara Sudhan Lakshmanan
Prediction Of Thrombus Formation In Ladder Network And Stability Of Thrombus In A Bifurcation, Hari Hara Sudhan Lakshmanan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Thrombus formation on complex branched networks like extracorporeal membrane oxygenators (ECMO) is poorly understood. In this work, we built a COMSOL model on branched networks, to understand and predict the thrombus formation under blood flow. A microfluidic ladder network design was used to study the change in hemodynamics. The microfluidic ladder sizes are chosen to mimic the physiologically relevant shear rates of 300 s--1 and 700 s--1 in main channels and bypasses respectively. The COMSOL model results were analyzed to understand the flow dynamics inside the ladder network. We predicted the thrombus nucleation points in the ladder network, based on …
Applications Of Artificial Intelligence (Ai) In Petroleum Engineering Problems, Shan E Zehra Lashari
Applications Of Artificial Intelligence (Ai) In Petroleum Engineering Problems, Shan E Zehra Lashari
Graduate Theses, Dissertations, and Problem Reports (ETD)
For the last few decades multiple business sectors have been influenced by the advancement in Artificial Intelligence (AI). Though the oil and gas sector began to utilize the potential of AI comparatively latter than many other sectors, the appreciable amount of work has been done by researchers to equip the industry with AI tools. This work aims to explore various horizons of petroleum engineering by using different AI tools.;For providing better decision making in reservoir fluid characterization problem, fuzzy logic has been applied, which is an AI method to drive decisions when data is incomplete or unreliable. The second part …
Estimating Bald Eagle Occupancy And Density In The Chesapeake Bay Watershed, Bethany Drahota
Estimating Bald Eagle Occupancy And Density In The Chesapeake Bay Watershed, Bethany Drahota
Graduate Theses, Dissertations, and Problem Reports (ETD)
Bald eagles (Haliaeetus leucocephalus) are a newly recovered species, and as such, little is known about their modern population dynamics and how these dynamics interact with their ecology. With the recent expansion of eagle populations, managers have begun to question assumptions about bald eagles, including their sensitivity to disturbances. Discerning how eagles react to both outside influences and internal factors is crucial for eagle conservation, especially in focal areas of importance, such as the Chesapeake Bay. I used seven years of monitoring data from the Virginia Department of Game and Inland Fisheries (VDGIF) to determine the occupancy (chapter 1) and …
Uav Modeling And Simulation At Normal And Abnormal Conditions, Mofetoluwa Fagbemi
Uav Modeling And Simulation At Normal And Abnormal Conditions, Mofetoluwa Fagbemi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The main objective of this thesis is to develop new capabilities within the West Virginia University (WVU) unmanned aerial systems (UAS) simulation environment for the design and analysis of fault tolerant control laws on small sized unmanned aerial vehicles (UAVs). An aerodynamic model for an electric powered UAV is developed using a vortex lattice method implemented within the computational design package Tornado. One-dimensional look-up tables are developed for the main stability and control derivatives, which are then used to calculate linear aerodynamic forces and moments for the nonlinear aircraft equations of motion. Flight data are used for model verification and …
Switching From Vitamin K Antagonists To Non-Vitamin K Oral Anticoagulants, Drug-Drug Interactions, And Health Outcomes Among Working-Age Adults With Atrial Fibrillation, Xue Feng
Graduate Theses, Dissertations, and Problem Reports (ETD)
AF patients with a high risk of stroke are recommended to be treated with oral anticoagulants. Given that the recently available non--vitamin K oral anticoagulants (NOACs) received favorable or non-inferior efficacy and safety outcomes as compared with warfarin in the clinical trials, do not require frequent blood drawings, and have fewer drug-drug interactions (DDIs) than warfarin, working-age adults with AF are likely to switch from warfarin to NOACs. However, NOACs may still interact with many drugs that are known to increase the risk of bleeding, which may, in turn, elevate the economic and healthcare burden. The three aims of this …
Flexible High-Density Puzzle Storage Systems, Ehsan Shirazi
Flexible High-Density Puzzle Storage Systems, Ehsan Shirazi
Graduate Theses, Dissertations, and Problem Reports (ETD)
In a traditional storage system, when one of the mechanical or electrical parts or the software fails to operate correctly, it may lead to the failure of the entire system imposing huge costs to the system (Gue et al., 2014). However, in a grid storage network, if a grid fails to operate, the system continues to operate. Therefore, failure of a system component will not jeopardize the whole system functionality. As such, reliability is one of the key advantages of grid storage networks. Another benefit of grid storage systems is flexibility. Various systems such as GridFlow, GridPick, GridStore, are developed …
Nondestructive Evaluation Of Frp Composite Bridge Componenets Using Infrared Thermography And Digital Tap Tesing, Ruben Mangal Joshi
Nondestructive Evaluation Of Frp Composite Bridge Componenets Using Infrared Thermography And Digital Tap Tesing, Ruben Mangal Joshi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Aging of civil infrastructures is one of the major problems faced by the engineering industry today, with the concrete structures cracking and the steel reinforcement corroding due to exposure to deicing chemicals, resulting in shorter service life. An alternative to the degrading infrastructures made of concrete and steel is the use of Fiber Reinforced Polymer (FRP) composites, which are noncorrosive. Use of FRP as structural components such as bridge decks and retrofitting jackets can solve the problem of aging with enhanced durability in future constructions. But, proper installation of newer material in structurally important infrastructure requires a reliable method of …