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Process Modeling, Operability Analysis, And Techno-Economic Optimization Of Soecs For Sustainable H2 Production, Krishna Murthy Busam

Graduate Theses, Dissertations, and Problem Reports (ETD)

The global imperative to decarbonize energy systems has intensified research into sustainable hydrogen production pathways, as hydrogen emerges as a critical energy carrier for sectors difficult to electrify directly. Among water electrolysis technologies, solid oxide electrolyzer cells operating at elevated temperatures offer the highest theoretical efficiency by utilizing thermal energy to reduce electrical energy requirements, yet comprehensive frameworks integrating electrochemical modeling with process operability analysis and techno-economic optimization remain scarce in the literature. This dissertation develops a process systems framework for proton-conducting solid oxide electrolyzer cells that bridges the gap between fundamental electrochemical phenomena and industrial-scale process economics. At the …

Adventures In Black Hole Binary Waveform Modeling, Siddharth Mahesh

Graduate Theses, Dissertations, and Problem Reports (ETD)

The modeling of black hole binaries requires accurate descriptions of both their relativistic vacuum dynamics and their interaction with surrounding astrophysical environments. Although these problems are often treated separately, this dissertation develops a unified view: key observables of black hole binary systems can be understood by identifying the dynamical instabilities that control their evolution. In the vacuum problem, the relevant unstable structure is associated with the remnant spacetime and its role in shaping the merger-ringdown gravitational waveform. In the environmental problem, the relevant instability is the epicyclic instability of orbits in the binary potential, which controls the location and evolution …

Development Of Hydrogen Emissions Quantification Systems To Expand Understanding Of Leaks And Losses Associated With The Burgeoning Hydrogen Transportation Sector, Christopher Loomis

Graduate Theses, Dissertations, and Problem Reports (ETD)

To combat global warming, alternative fuels are being investigated. Hydrogen is at the forefront of this movement, advertised as having zero emissions due to the products of the energy reaction being only water. However, studies over recent decades indicate that hydrogen in the atmosphere acts as a form of greenhouse gas (GHG) by increasing the lifespan of methane in the atmosphere. Models are attempting to estimate the possible effects of a transition to a hydrogen-fueled economy but lack empirical data to provide confidence to these estimated values. There is little data that quantifies hydrogen from anthropogenic sources.

To address this …

Among The Remnants, Jade-Lynn B. Lewis Vance

Graduate Theses, Dissertations, and Problem Reports (ETD)

This written thesis serves as supporting documentation and research for my Master of Fine Arts thesis exhibition, Among the Remnants, at West Virginia University. This dissertation will explain how my artistic vision, influences, research, and thesis exhibition fits into larger art and cultural contexts. Drawing from art history and theory, my work explores memory, touch, and fragmentation. My fascination with artifacts and the stories they hold inspires my research and drives me to create personal connections within my own art. The figurative sculptures serve as a vessel for recalling impactful experiences and embodying personal perception and these interactions. The …

Utilizing Plethodontid Occupancy To Assess Initial Ecosystem Responses To Invasive Plant Control Treatment In The Central Hardwoods, Maree Guinevere Dieterich

Graduate Theses, Dissertations, and Problem Reports (ETD)

Invasive plants are a growing concern for land managers, impacting ecosystem resilience and outcompeting native vegetation. To combat this, invasive plant control treatments can assist in reducing the impacts and spread of damaging, non-native plant species. However, intensive treatments completed at large scales have the potential to negatively impact ecosystem services as well. To monitor these impacts, I utilized a well-known indicator in the Central Applachian region, Plethodontid salamanders, to assess impacts of invasive plant control treatments in the Central Hardwood forests. I completed 12 visual samples across 60 sites in West Virginia, USA during Spring and Fall of 2025 …

“This, To Me, Was My Town”: How Segregation Shaped Huntington, West Virginia’S Black Community, Jillian Alexis Kendall

Graduate Theses, Dissertations, and Problem Reports (ETD)

Using Huntington, West Virginia as a case study to examine Black urban-Appalachian communities, this thesis analyzes Huntington’s Black “city within a city” from 1934–1961, exploring how city-sanctioned segregationist practices shaped the community. In 1929, The Herald Dispatch asserted that Black Huntingtonians were able to thrive due to racial harmony facilitated by the “tolerant” attitudes of white Huntingtonians. However, closer inspection reveals that the city’s Black population survived in spite of persistent racial intolerance from white citizens, as well as city, state, and federal authorities. Though Huntington was not technically segregated by de jure means, it is apparent that the city …

Graded Repertoire For Violin By Latin American Composers: Pedagogical Analysis And Categorization Of Selected Pieces, Irene Guerra Rudas

Graduate Theses, Dissertations, and Problem Reports (ETD)

Repertoire sequences have evolved from a collection of technical studies into a comprehensive educational framework. This research aims to enhance the integration of innovative pedagogical materials by identifying, analyzing, and categorizing works originally composed for violin by Latin American composers. These works are assessed for their suitability within a structured violin curriculum and organized into graded levels, ranging from elementary to advanced.

Each selected piece is evaluated according to pedagogical parameters commonly used in established violin teaching traditions. These parameters include pitch range, rhythmic complexity, bow strokes, length, stylistic diversity, musical language, and the historical and cultural relevance of both …

Comparative Evaluation Of Bending Resistance And Retentive Torque Stability Of Zest Locator® And Straumann Novaloc® Abutments: An In Vitro Study, Hammad Ul Haq

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Comparative Evaluation of Bending Resistance and Retentive Torque Stability of Zest Locator® and Straumann Novaloc® Abutments: An In Vitro Study

Hammad Ul Haq B.D.S.

Objective: To compare the mechanical performance of Locator® (Zest Anchors) and Novaloc® (Straumann) implant overdenture attachment systems connected to Straumann Bone Level Conical (BLC) implants under standardized cyclic and static off-axis loading conditions.

Materials and Methods: Ten Straumann BLC implants were divided into two groups (n = 5): Group 1 received Locator® abutments and Group 2 received Novaloc® abutments. All abutments were tightened to 35 N·cm and retightened after 10 minutes. Baseline removal torque values …

Comprehensive Evaluation Of Co₂ Eor Numerical Modeling In The Clinton Sandstone Of The Appalachian Tri-State Region Using Compositional Reservoir Simulation (Cmg Gem), Bushra Aref Alqattan

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

The Clinton Sandstone of the Appalachian Basin represents a mature hydrocarbon-producing formation with potential for carbon dioxide (CO₂) enhanced oil recovery (EOR). This study develops a compositional reservoir simulation model using the CMG software suite (WinProp, Builder, and GEM) to evaluate the performance of CO₂ injection in improving oil recovery within the Clinton formation.

A three-dimensional reservoir model was constructed using representative geological and petrophysical properties consistent with those of the Clinton Sandstone. Fluid behavior was modeled using a compositional equation-of-state (EOS) approach to accurately capture phase behavior, miscibility development, and CO₂–oil interactions under reservoir conditions. Injection scenarios were …

Plant Invasion Patterns In Understory And Soil Microbial Communities Of North Central West Virginia Mixed Hardwood Forests, Isabelle Marie Uganski

Graduate Theses, Dissertations, and Problem Reports (ETD)

Invasive plants alter forest ecosystems by reducing species richness, habitat heterogeneity, and nutrient cycling as they rapidly displace native plants. Invasive plant composition can influence soil health through altering soil microbial associations and communities. By studying the mechanisms in which invasives alter above- and below-ground communities, we can better understand whole-ecosystem impacts and inform management decisions. This study examined the relationships between co-occurring invasion on above and belowground communities of mixed hardwood forests of north central West Virginia. Despite distinctive associations with aboveground characteristics (native diversity, native tree regeneration, and leaf litter density) we detected limited changes to soil microbial …

Machine Learning-Based Prediction Of Heavy-Duty Diesel Engine Emissions And Comparative Analysis Against Statistical Models, Abdullah Ahmad Khan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The increasing stringency of emissions regulations for heavy-duty (HD) diesel engines necessitates the development of accurate, efficient, and general predictive models for engine-out emissions under steady-state operating conditions. Traditional statistical approaches, while computationally efficient, often fail to capture the inherent nonlinear relationships between the engine operating parameters and emissions formation. In contrast, machine learning (ML) techniques offer a promising alternative by learning the complex patterns directly from experimental data. The present thesis summarizes a comprehensive study on the prediction of steady-state, HD diesel engine emissions using ML models, along with a comparative analysis against conventional statistical modeling approaches.

A high-quality …

A Digital Calibration Source For 21 Cm Cosmology Telescopes, Kalyani Balkrishna Bhopi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Precise calibration of radio telescope beams and gains is a central requirement for 21 cm intensity mapping experiments, which aim to measure large scale cosmological structure through the redshifted emission line of neutral hydrogen. Bright astrophysical foregrounds dominate the sky at these frequencies, and separating them from the cosmological signal demands precise control over instrumental systematics, particularly the telescope beam and its frequency-dependent response. Existing aerial calibration sources are incoherent broadband emitters, detectable only as total power. They provide no direct phase information and suffer from poor sensitivity in low signal-to-noise regimes.

We present the Precision Emitter for 21cm Array …

Simulation Optimization Of Intermodal Freight Transportation Under Disruptions, Israt Humayra

Graduate Theses, Dissertations, and Problem Reports (ETD)

Rapid growth in freight transportation in modern supply chains has led to increased operational costs, congestion, and severe environmental impacts, especially greenhouse gas emissions. Combining different modes, such as highway, railway, and waterway, intermodal transportation could thus offer considerable benefit to improve efficiency, sustainability, and resilience. However, most existing planning approaches rely on simplified assumptions, fixed schedules, and average cost estimates, making them less relevant to dealing with real-world uncertainties and disruptions. This study develops a simulation-optimization framework for intermodal freight transportation under disruption. We develop a mixed-integer programming model to represent an intermodal logistics planning framework on a multi-layered …

Microwave Calcination Techniques For Electrode And Electrolyte Powders In Fuel Cells, Logan Scott Proud

Graduate Theses, Dissertations, and Problem Reports (ETD)

This work investigates microwave-assisted calcination as a rapid, energy-efficient alternative to conventional resistive heating for the synthesis of complex oxide powders used in solid oxide electrochemical cells. Ce₀.₉Gd₀.₁O₁.₉₅ (GDC10) and La₀.₆Sr₀.₄Co₀.₂Fe₀.₈O₃–δ (LSCF6428) were synthesized via solid-state and co-precipitation routes to evaluate the influence of precursor chemistry and dielectric behavior on microwave coupling, reaction kinetics, and powder characteristics. Calcination was performed in single-mode and multimode microwave systems using a silicon carbide/alumina susceptor–insulation package to ensure controlled high-temperature processing. A parametric study examining ramp rate, sample size, and temperature revealed that microwave processing reduced calcination time to ~1 hour compared to >21 …

Do You Walk On By? The Effects Of Donor Fatigue On Willingness To Donate, Shawn Michael Henry

Graduate Theses, Dissertations, and Problem Reports (ETD)

Donation solicitation literature validates the successful usage of various solicitation tactics that lead to achieving set donation goals for their associated cause. Yet, while the financial success of “checkout charity” is well-documented, a significant gap remains regarding the impact of high-frequency solicitations on long-term consumer-brand relationship. This research addresses this gap. Over the span of three surveys, this study finds that donation request frequency overall erodes donation likelihood through donor fatigue when donation frequency changes (occasional vs. always). However, this relationship is moderated by the perceived consumer base, with a larger perceived consumer base exacerbating the “diffusion of responsibility.” Further, …

Congolese Journalists: Professional Identity And Legitimacy, Hannah L. Heiskell

Graduate Theses, Dissertations, and Problem Reports (ETD)

This paper examines how Congolese journalists construct their professional identity

and legitimacy while working under conditions of conflict and state pressure, and how

international media outlets discursively represent them through Western journalistic norms.

Addressing previous research and centering local perspectives, this study uses critical

discourse analysis to compare language, framing, and narratives across Congolese and

international media texts, and the works in which they produce. Attention is given to how

agency, professionalism, and constraint are represented within each discourse. The analysis

focuses on metajournalistic discourse, or journalism talking about journalism, to examine

how professional norms and boundaries are articulated and …

Bangladeshi Students' Experiences With Formative Feedback At West Virginia University, Habiba Jahan Seam

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examines how Bangladeshi international graduate students at West Virginia University experience, interpret, and utilize written formative feedback within higher education in the United States. It explores how students' prior educational and cultural experiences in Bangladesh shape their engagement with feedback in a different academic context. I used a qualitative approach to collect data through two rounds of semi-structured interviews and three focus group discussions with Bangladeshi graduate students to better understand how individuals make sense of formative feedback throughout their academic journey. Findings indicate that prior educational experiences play a meaningful role in shaping how students interpret and …

Exploring The Role Of Occupational Therapy In A Pediatric Specialty Care Office, Sierra Leigh Hays

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The role of OT in primary and specialty care clinics is a rising area of interest in the field. There are also many multidisciplinary clinics that OTs can be or are apart of. This study aims to evaluate the consulting role of OT in primary and specialty care clinics, as well as to evaluate data collected by an OT in a pediatric brachial plexus and peripheral nerve clinic. Methods: The first objective was focused on analyzing functional outcomes, using the Active Movement Scale (AMS), of children following neurosurgery or onabotulinum toxin A injections. This was a retrospective study with …

Caring For The Caregiver: Implementing An Occupational Therapy-Tailored Educational Program To Alleviate Caregiver Burden, Lura Elizabeth Simons

Graduate Theses, Dissertations, and Problem Reports (ETD)

Caregivers of traumatic brain injury (TBI) survivors experience caregiver burden, which is a prevalent issue. The most significant concern is for symptoms of burden affecting mental health and sleep quality. This doctoral capstone project addressed the knowledge gap regarding programs that alleviate these signs and symptoms through evidence-based interventions. The objective was to create an educational program with modules that demonstrated improvement in satisfaction and content understanding through in-person sessions and individualized interviews with staff members. This project aimed to reduce perceived burden by conducting in-person sessions to implement interventions through an occupational therapy (OT) lens and by using educational …

Data-Driven Methodologies For Mapping Cultural Heritage: The Case Of The National Coal Heritage Area, West Virginia, Usa, Hossain Mohammad Nahyan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this dissertation was to develop a comprehensive, data-driven spatial framework for characterizing the complex cultural landscape of the National Coal Heritage Area (NCHA) in West Virginia. By transitioning away from traditional, heuristic spatial mapping, this research integrates advanced spatial statistics, machine learning, and GIS-based methodologies to objectively quantify the physical, visual, and cultural dimensions of the post-mining environment. The research is structured around three interconnected empirical studies, each addressing a specific scale of the Landscape Character Assessment (LCA) framework to support heritage conservation and sustainable spatial planning. The first paper focused on landform classification, developing an automated …

Three Essays In Cpi Bias And Health Economics, Auderta Amoako-Nuamah

Graduate Theses, Dissertations, and Problem Reports (ETD)

The first essay estimates bias in the Consumer Price Index (CPI) for elderly individuals in the United States using Engel curve methodology and household-level data from the Panel Study of Income Dynamics (1999–2023). The analysis focuses on how well the CPI reflects changes in the cost of living for older Americans, with particular attention to differences by gender and marital status. Results show that from 1999–2011, the CPI overstated the increase in the cost of living for both elderly and non-elderly households. In contrast, from 1999–2023, the CPI understated cost increases, with the bias generally larger for non-elderly households. Within …

Impact Of Occupational Therapy Within The Rosenbaum Family House: How Program Development Supports Health And Well-Being For Caregivers And Care Recipients, Zaccardi P. Muniz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Healthcare hospitality houses (HHH) are designed to accommodate patients and caregivers receiving medical treatment far from home. The Rosenbaum Family House (RFH) acts as the HHH adjacent to J.W. Ruby Memorial Hospital in Morgantown, West Virginia. The RFH offers amenities that meet the basic needs of guests; However, there is an opportunity for occupational therapy-based program development to help further assist caregivers and care recipients both inside and outside the RFH. During the doctoral capstone experience (DCE), a three-phase project was developed to support the health and well-being of guests and WVUMedicine clients through group programming, resource guide development, and …

A Quality Improvement Initiative To Improve Central Line Insertion Care Using An Evidence- Based Practice Checklist, Jonathan Andre Barbour

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Central line infections in a 33-bed Cardiovascular Intensive Care Unit (CVICU) at a large academic medical center located in the northeastern United States were increasing for patients after cardiovascular surgery. These infections could, potentially, lead to longer hospital stays and lost revenues for the health system. A project explored the implementation of an evidence-based practice (EBP) sterile procedure standardized checklist during central line insertions

Purpose: A quality improvement (QI) initiative project sought to improve central line insertion compliance while monitoring the bedside implementation of an EBP checklist.

Intervention: The Agency for Healthcare Research and Quality’s (AHRQ) Central line-associated bloodstream …

Increasing Documentation Of Endotracheal Tube Cuff Pressures: A Quality Improvement Initiative For Flight Crew Providers, Matthew D. Noss

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Background: There was a lack of documentation of endotracheal tube (ETT) cuff pressures (CPs) by flight crew providers at Base 1 of HealthNet Aeromedical Services. A three-month pre-intervention data collection showed 1.8% of patients had initial CPs documented. Inadequate documentation and monitoring of ETT CPs can lead to patient complications such as tracheal injury and aspiration making this an important area for quality improvement.

Purpose: To increase documentation of ETT CPs through education and evidence-based interventions.

Intervention: This project implemented an educational in-service on ETT cuff syringe manometry for flight crew providers. The educational intervention consisted of …

An Evidence-Based Practice Initiative To Promote Debriefing Within The Obstetrics Surgical Team, Rachel Lynn Runatz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Operating room debriefing is an evidence-based strategy shown to improve communication, efficiency, patient safety, and safety culture; however, debriefing is inconsistently performed in obstetric operating rooms due to workflow, cultural, and time-related barriers.

Purpose: The purpose of this Doctor of Nursing Practice (DNP) project was to increase the frequency of debriefings in the Birthing Center operating rooms at WVU Medicine Children’s Hospital through implementation of a nurse-driven, evidence-based debriefing initiative.

Intervention: A nurse-driven debriefing protocol was implemented using the Iowa Implementation for Sustainability Framework. Interventions included staff education, accessible laminated debriefing documents, identification of nurse champions, leadership support, and …

Resilience And Reactivity: The Relation Between John Henryism And Cardiovascular Responses To Laboratory Stressors In An Appalachian Sample, Emma Raycher Thompson

Graduate Theses, Dissertations, and Problem Reports (ETD)

John Henryism active coping (JHAC), named for folk hero John Henry, is defined as the perception that one can overcome stressors through hard work (James et al., 1983). This construct has been tied to numerous health outcomes, showing a negative influence on cardiovascular health (Bennett et al., 2004). Many researchers have examined the relation between JHAC and cardiovascular reactivity to stress, though findings are mixed. Further, despite the legend of John Henry occurring in Appalachia, and traits associated with John Henryism, such as resilience, being prominent within this region, no study has examined the relation between JHAC and reactivity in …

Elucidating Structure–Reactivity Relationships In Ni-Catalyzed Co2 Methanation, Majed Alam Abir

Graduate Theses, Dissertations, and Problem Reports (ETD)

The catalytic hydrogenation of carbon dioxide (CO₂) to methane represents a promising strategy for carbon utilization and renewable energy storage within power-to-gas systems. When coupled with hydrogen derived from renewable electricity, CO₂ methanation enables the conversion of intermittent energy sources into storable and transportable chemical fuels compatible with existing natural gas infrastructure. Nickel-based catalysts have emerged as leading candidates for this reaction due to their high activity towards CO₂ methanation, abundance, and cost. However, the performance and long-term stability of Ni catalysts are strongly influenced by catalyst support properties, Ni nanoparticle size, and promoter effect, and …

Behavioral Adaptation To Systematically Changing Local Conditions Of Reinforcement, Kento Yasukawa

Graduate Theses, Dissertations, and Problem Reports (ETD)

Adaptation is the continual process of behavioral change in response to changes in environmental contingencies. One example of adaptation is to track the temporal distribution of reinforcers. The present dissertation investigated how responding tracked cyclically changing reinforcement schedules (i.e., cyclic interval [CI]) and how such tracking was influenced by concurrently available alternative reinforcement schedules. Across two experiments, four pigeons responded under a CI 60-s schedule in which the interreinforcer intervals (IRIs) changed systematically according to a sinusoidal function. The primary dependent variable was postreinforcement pauses (PRPs), with local response rates (response rates per IRI) examined as a secondary measure of …

Posttraumatic Growth In Appalachian Youth: Findings From An Outpatient Pediatric Trauma Specialty Clinic, Marinne M. Morgan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Childhood traumatic event exposure (CTE) involves exposure to extreme events that overwhelm one’s ability to cope. Childhood traumatic event exposure has been linked to a wide range of adverse mental and physical health consequences, including posttraumatic stress symptoms (PTSS). Fewer studies have examined positive trajectories following childhood traumatic event exposure, such as posttraumatic growth (PTG), especially in understudied regions such as Appalachia. The current study used a cross-sectional design to examine posttraumatic growth in 14 youths aged 9 to 15 years seeking trauma-focused therapeutic services at an outpatient pediatric trauma specialty clinic in West Virginia. In line with previous research, …

Evaluation Of Potential Factors Limiting The Expansion Of Invasive Carp (Hypophthalmichthys Spp.) In The Ohio River Basin, Erin Shepta

Graduate Theses, Dissertations, and Problem Reports (ETD)

The introduction of aquatic invasive species is one of the greatest threats to freshwater biodiversity around the world. Two species of invasive carp, bighead carp (Hypophthalmichthys nobilis) and silver carp (H. molitrix) have spread throughout much of the Mississippi River Basin, resulting in serious ecological impacts to native communities. Their spread in the Ohio River, a major tributary of the Mississippi River, appears to have slowed, with limited evidence of upstream advancements. Here, we investigated abiotic and biotic factors that may be contributing to the reduced spread of invasive carp in the Ohio River Basin. Generally, …