Digital Commons Network^™

Reinforcement Learning For High-Dimensional Tradespace Exploration In Multi-Objective Optimization, Aaditya Kothavade

All Theses

Engineering design optimization often requires balancing multiple competing objectives while navigating complex, high-dimensional tradespaces. Despite significant advances in tradespace exploration techniques, current methods face critical challenges in efficiently navigating high-dimensional design spaces. As the number of design variables and competing objectives increases, traditional multi-criteria decision-making and optimization methods struggle to explore the vast solution space comprehensively. The curse of dimensionality exacerbates this issue, making it impractical to analyze all possible solutions and effectively identify trade-offs between objectives. Additionally, the computational complexity of high-dimensional spaces further complicates optimization, making exhaustive solution analysis infeasible. Traditional multi-objective optimization methods rely on static Pareto-front …

Application Of Regression Techniques On Designed Economic Data, Naomi O. Edegbe

All Theses

Evaluating stock market data and public companies' performance is an overwhelming task for day traders and brokers in the United States and internationally. As a financial metric of a company's overall valuation, earnings per share is a commonly researched measure of a company's profitability. We investigate relationships between earnings per share, multiple financial measures reported from company income statements, and classifiers such as market capitalization and sector. Multiple linear regression models are developed and assessed for this data. Results conclude that there is a significant difference between sectors and earnings per share recorded for a given company. Individual stock analysis …

Stability Of Holes In Granular Raft, Plabon Kumar Saha

All Theses

A granular raft at an oil–water interface exhibits unique mechanical properties, including the ability to form and sustain stable holes. In this study, we experimentally investigate the formation, stability, and collapse dynamics of holes in particle rafts composed of micrometer-sized particles. Holes are created using a hollow cylinder, which generates a meniscus that inhibits particle motion, thus stabilizing the hole. Stable holes are formed when their size reaches a critical value, which depends upon the capillary length. The critical hole size does not depend upon the circularity of the hole. We show that capillary forces due to the presence of …

False Information Attack Detection In A Connected Vehicle Environment With Quantum Inspired Long Short-Term Memory, Jean Michel M. Tine

All Theses

Wireless communication Systems enabling Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) data exchange, supported by technologies such as Cellular-V2X (C-V2X), has introduced significant cybersecurity challenges, particularly the threat of false information attacks that can compromise traffic safety and efficiency. In this thesis, the author focuses on identifying false information cyber-attack on V2I, in which vehicles are sending Basic Safety Messages (BSMs) to a Roadside Unit (RSU) and RSUs are collecting, processing and communicating data back to Connected Vehicles (CVs) to support different CV applications. Despite advances in anomaly detection using Long Short-Term Memory (LSTM) networks, these models often struggle with computational efficiency …

Race, Sex Work, And Spatial Segregation In Storyville, New Orleans, Paige M. Magoto

All Theses

Storyville, New Orleans, operated as a legalized vice district from 1897 to 1917. This 38-block area facilitated sex work and prostitution “across the color line,” perpetuating and encouraging the practice of white men seeking sexual acts from Black women and women of mixed-race descent. I engage with multiple interacting subsections of historiography within this thesis project. The historiography spans Southern history from the early nineteenth century in the Old Antebellum South until the early twentieth century in the Progressive Era. The broader historiographic dimensions of labor and sexuality were also influential in curating this research project, engaging with the evolving …

The Rise And Fall Of The Contagious Diseases Acts: An Examination Of The Legislative Influences, Medical Discourse And Repeal Arguments, Elizabeth Henderson

All Theses

The Contagious Diseases Acts (CDA) were the most important legislative intervention concerning sexuality in the nineteenth century. The CDA was a public health measure passed to address the spread of venereal disease amongst the British Army and Navy, and targeted Britain's most vulnerable women – sex workers – because they were blamed for being the presumed cause and primary mode of spreading venereal disease. This resulted in the legalization of what critics of the CDA would call surgical assault, or instrumental rape, of working-class women suspected of being sex workers. Historians who study sexuality and sex work in Britain have …

Beyond Just The Negros’ Art: Langston Hughes And The Poetic Renewal Of Black Musical Tradition, Samuel Adewumi

All Theses

Where do we begin the study of Black music in America? Is there even a beginning to it? As a poet, how does Langston Hughes contribute to its continuance during the Harlem Renaissance? These are some of the questions that shape the trajectory of this research. In it, I set a precedent for African orature in future studies of Black music in America. Essentially, I trace the survival of African orature and Langston Hughes’s role in the sustenance and utility of its style and themes in the early 20th century. Through it, I argue that Hughes’s poetry serves not as …

Modeling Dna Repair In Escherichia Coli Using A Boolean And Stochastic Framework, Gabrianne Ivey

All Theses

DNA can be damaged through both internal and external sources. Therefore, cells have created methods to repair DNA damage. In Escherichia coli, the system responsible for DNA repair is termed the SOS response. This system consists of more than 50 genes and contains three main repair pathways: nucleotide excision repair, translesion synthesis, and homologous recombination. The response is initiated when DNA lesions result in the accumulation of single-stranded DNA (ssDNA). The protein RecA is activated by binding to ssDNA and is then denoted RecA*. RecA* assists in the auto-cleavage of LexA which is the primary repressor protein involved in …

Capitola, The Newsboy, As A Story-Paper: Movement, Serialization, And The Rewriting Of Domestic Space In E.D.E.N Southworth’S The Hidden Hand, Emma B. Pinson

All Theses

E.D.E.N. Southworth’s The Hidden Hand was immensely popular among nineteenth century American readers. These readers would have read the novel in a story-paper before it made its debut in novel form. Similar to a newspaper with the exception being that the content is fiction, readers would rush to purchase a new edition each week. In this thesis, I argue that both the content and print form of The Hidden Hand disrupt the separate gender spheres in nineteenth century America by encouraging a young girl’s movements in public spaces. What I call a separate separate gender sphere allows women and young …

The Shame Of (Be)Longing In Jamaica Kincaid's Lucy, Grace S. Miholic

All Theses

This thesis examines the role of shame in Kincaid's Lucy. Separated into four separate sections, the thesis moves through Lucy’s relationship with her boss, Mariah, her Antiguan mother, and the shame that is identified at the end of the novel. In the introduction, I identify the passage that frames the novel around shame. I then identify my thesis, which centers around Lucy’s shame and her inability and refusal to situate herself with neither Mariah nor her mother’s expectations. The second section of the thesis revolves around Mariah and the form of feminism that skews her perception and expectations of …

Quantifying The Transformation Of The Built Environment As A Result Of Cooper River Bridge Construction In Charleston, South Carolina, Catherine Claire Jackson

All Theses

The demolition of historically undervalued vernacular architecture for the construction of transportation projects has created a large-scale, cumulative loss of architectural heritage nationwide. This thesis quantifies the architectural loss caused by the construction of the series of Cooper River bridges in peninsular Charleston and Mount Pleasant. This study assesses the transformation of the built environment as a result of each bridge’s construction by determining the quantity of architectural loss, identifying forms and materials of architectural loss, and differentiating the effects of bridge construction on the more rural Mount Pleasant side compared to the urban peninsular Charleston side. Also assessed in …

Sensory Elements And Perceived Value In Cosmetics Packaging, Laurel G. Kunkel

All Theses

This research looked at how different sensory features of packaging can affect the way Generation Z consumers feel about a product's value. Focusing on a high-end sunscreen brand called Oasis Sunscreen Co., four packages were created with a unique sensory element. 53 college students were surveyed to see which package they preferred. The results showed that the visual aspects of the packaging were the most important, with over half of the participants choosing the visually appealing package as their favorite. Scented packaging also caught people's attention, while features that involved touch were appreciated but not as influential. The study suggested …

Migration And Diaspora: An Intersectional Feminist Reading Of Lucy By Jamacia Kincaid., Benjamin Oluwakayode Akinlabi

All Theses

This thesis explores how migration and diaspora shape the intersectional experience of Black women through a close reading of Jamaica Kincaid's Lucy. Drawing on Black feminist thought, I make a case using analytical and theoretical frameworks to expand intersectionality to account for global movement and memory. Intersectionality must move beyond national borders to account for how power travels with people. I argue that migration works externally through movement and displacement, and diaspora works internally through memory. There is a location in the United States, but there is always a look back through memory and the two conflict. Lucy's migration …

Resurrecting Mslrp The Diagnosing, Documentation, And Demonstration Of Miniaturized Sequential Liquid Lignin Recovery And Purification, Robert Booth Whiting Lowery Jr

All Theses

A pilot plant designed for the Sequential Recovery and Purification of Liquid Lignin was downsized to perform optimization and minor adjustments at a reasonable time and operational cost. Multiple failed runs proved the need for a redesign, and an analysis was performed to solve the newly discovered scaling issues.

Operators identified several common failure points of the mSLRP and theorized several methods to rectify them. This included a rework of both procedural elements, the physical construction of the pilot plant, and the actual code and control of the pilot plant’s operating system, LabVIEW.

Runs were attempted, and eventually, the corrective …

Assessing Student Satisfaction Using Courses Generated By Artificial Intelligence, Althaf Hussain Kallamadugu

All Theses

This research explores the effectiveness of using Artificial Intelligence (AI)-generated voice-over presentations as an alternative to traditional human-narrated lectures in online education. The study focuses on students preparing for the Federal Aviation Administration (FAA) Part 107 exam for Commercial small Unmanned Aircraft Systems (sUASs). By comparing AI-generated lectures with human-narrated content, the research aims to assess the impact of AI on student satisfaction, engagement, and performance. A mixed-methods approach was employed, combining quantitative analysis of exam scores and survey data with qualitative insights from student interviews. The methodology includes the creation of AI-generated voice-over presentations, survey distribution to both control …

Modality Distillation Using A Sam-Guided Multimodal Teacher For Unimodal Wildfire Segmentation And Temperature Prediction, Michael N. Marinaccio

All Theses

Wildfires are one of the world’s most devastating natural disasters that affect the environment, communities, and more critically, humans that live in and around those communities. Due to the threat of large-scale destruction in landscapes and human inhabited areas, it has become increasingly more important to develop wildfire detection, management, and suppression strategies to mitigate and prevent these negative outcomes. Wildfire research encompasses many different areas. Most notably, the development of communication, navigation, remote sensing, and monitoring systems. In wildfire monitoring, limitations discovered in-ground and satellite observation have shifted the focus toward Unmanned Aerial Vehicle (UAV) based wildfire research, which …

Micro Wind Turbine - Modelling And Testing, Mohammad Uzair Bhati

All Theses

The global energy demand continues to rise as people consume more electricity to power their personal electronics, electric vehicles, and consumer products such as outdoor tools. To generate renewable energy, large scale solar and wind farms continue to receive the most commercial attention. However, portable wind energy turbines have the potential to generate sufficient power for cell phones and other electronic devices. There are two types of wind turbines, horizontal and vertical axis each having their pros and cons. Vertical-axis wind turbines are the main focus of this thesis, with a reduction in their form factor or size and portable …

Speaking Up: A Courage Framework Of Bipoc Voices In The Workplace, Aishah Khan

All Theses

Despite the many beneficial outcomes of voice in the workplace, employers and employees do not often utilize it to its full potential, particularly those from historically marginalized groups. Past literature has examined the many ways in which the experience of minority-group members differs from that of majority-group members; however, scarce work has been done exploring the “mental calculus” that those from marginalized groups go through when deciding whether to advocate for themselves or others at work. To provide insight into this specific experience, I manipulated representation and context in a novel fashion – and examined if and how safety, risk, …

Athlete Soreness Self-Reporting For Increased Sports Recovery, Marissa Bennett

All Theses

With 70-80% of athletes choosing to withhold soreness/injury-related information from sports staff (Jessiman-Perreault et al., 2016; Whatman et al., 2018), the need for more research in this sector of sports communication is apparent. This study aimed to take a step in closing that research gap by identifying barriers to soreness reporting and taking measures to try and work around those barriers in partnership with a Division I, southeastern, public university football team over the course of the 2024 season. The 2024 season’s data was then compared to data collected in the 2021-2023 seasons. Exploratory research into a Division I, southeastern, …

Tattoo Stereotypes In The Workplace: Can Being A Tattooed Female Increase Perceptions Of Hireability?, Gabrielle A. Rufrano

All Theses

There is ample research supporting that having a visible tattoo can hinder one’s chances of being hired because of the application of negative stereotypes typically associated with being tattooed. However, recent evidence has demonstrated that tattooed individuals can be positively stereotyped, and that job context can influence customer attitudes and behaviors towards them, suggesting that tattoos can benefit employees in certain job types (Ruggs & Hebl, 2022; Timming, 2017). Gender differences in this body of literature have not been thoroughly explored, but interestingly, there is conflicting evidence on the perceptions of visibly tattooed women. Across two experimental studies and a …

The Impact Of Quality Of Life And Recovery Capital On Inhibitory Control In Patients On Medication For Opioid Use Disorder, Caroline K. Jeffries

All Theses

The opioid crisis persists as a global health challenge, necessitating a comprehensive understanding of the complex interplay between psychological factors and neurocognitive responses among individuals with opioid use disorder (OUD). Two such psychological factors include recovery capital, an individual's internal and external resources to supporting recovery, and quality of life. Past work suggests that positive levels of recovery capital and quality of life may enhance individuals’ ability to regulate emotions and manage cravings. However, it is unclear how these variables are affected when buprenorphine is taken. This study investigates the influence of recovery capital and quality of life on inhibitory …

Evaluating Climate Benefits In The Conservation Reserve Program: Methane Emissions And Carbon Storage In Restored Wetlands, Annika Kuleba

All Theses

As climate change progresses, Nature-based Climate Solutions (NbCS) have emerged as a key strategy for mitigation. Historically, wetlands were drained to increase arable land area, resulting in habitat degradation and soil erosion. To address these issues, the United States Department of Agriculture (USDA) incentivizes wetland restoration under the Conservation Reserve Program (CRP), in which landowners retire agricultural land to reestablish native habitat. Although wetlands can act as carbon sinks, they are also sources of methane, a more potent greenhouse gas (GHG). Therefore, the effectiveness of wetlands as a NbCS remains under debate due to assumed high methane emissions. Wetland functions …

Exploring Antimicrobial Performance And Compostability Of A Pectin-Based Film, Jessica Hardiman

All Theses

Packaging is considered one of the most important parts of the food supply chain. Packaging affects many aspects of the food product, such as acceptability, safety, nutritional quality, and it also provides a means of communication with the consumer. Although many people are aware of the great benefits packaging provides to the food sector, fewer think about the repercussions that occur from the waste that is generated from packaging, or the waste from the food inside the package. There is little research done on the development of compostable and antimicrobial packaging, which could reduce plastic and improve food safety. In …

Application Of Remote Sensing In Mapping Callery Pear Distribution And Biomass Estimation In The Southeastern United States, Kavi Raj Awasthi

All Theses

Callery pear (Pyrus calleryana Decne. Rosaceae) is a rapidly spreading invasive species in the southeast United States (US) that hampers the function of native tree species and the forest ecosystem. Native to Southeast Asia, the species has encroached on the natural and secondary vegetation habitats of the Southern US in recent years. This study attempted to 1) map the Callery pear across the southeast US and 2) model the aboveground biomass (AGB) of individual Callery pear trees.

We used Callery pear locations and winter imageries of Sentinel-2, Sentinel-1, L-band radar, and terrain imagery for mapping purposes. In addition, we …

Impacts Of Cognitive Workload On Veteran Driver Reaction Time: Predictive Modeling Using Bayesian And Machine Learning Methods, Kenneth Ofosu-Kwabe

All Theses

In high-demand environments, the ability to manage cognitive workload can mean the difference between optimal or safe performance and critical failure or accidents. Veterans face an elevated risk of fatal motor vehicle accidents due to post-deployment stress, combat-related injuries, and challenges readjusting to civilian driving. This study explores how cognitive workload affects reaction time performance using a driving simulator by collecting and analyzing subjective workload ratings (using the NASA-TLX survey), physiological signals from eye-tracking and performance data from a sample of 28 Veterans.

We examined how task difficulty, cognitive indicators and personal attributes influence reaction times across an interactive driving …

A Qualitative Analysis Of Graffiti Inscriptions At Ecclesiastical Sites In The South Carolina Lowcountry, Hannah Truman

All Theses

The study of graffiti has become a multi-disciplinary study. Historical and modern forms of graffiti offer a unique perspective on the connection people have with religious sites over the span of three hundred years. Within South Carolina, the establishment of twenty-five churches throughout the Lowcountry from 1706 to 1775 offers an understanding of people’s connection to spaces from the beginning of South Carolina’s establishment to the present day. Their beliefs are reflected throughout the space of the building as congregations have left their imprint.

In order to understand the relationship of people to the site over time, various methods were …

A Review On Treatment, Prevention, And Research Of Worldwide Parasitic Disease: Toxoplasmosis, Hannah Skinner

All Theses

Toxoplasmosis is a worldwide, yet often overlooked, parasitic disease caused by the protozoan parasite, Toxoplasma gondii. The parasite is capable of infecting humans and almost all warm-blooded vertebrates. Over a million people are infected in the United States with toxoplasmosis each year. Most infections are asymptomatic but severe cases can lead to vision impairment, neurological disorders, and congenital birth defects. T. gondii is transmitted through undercooked meat, infected feline feces, or contaminated water and soil. The burden of T. gondii infection is most notable in livestock, felines, and immunocompromised humans. Despite being a widespread disease, toxoplasmosis is neglected in …

Evaluation Of High Temperature Borehole Heat Exchangers For Thermal Energy Storage, Robert J. Mcdaniel

All Theses

The development of renewable power sources like solar panels and wind turbines is crucial to lowering greenhouse gas emissions and slowing the increase in global temperature. These sources are limited by the intermittency of power output depending on factors such as weather or time of day. Storing energy during periods of peak productivity improves the efficiency of renewable sources and makes them more competitive with fossil fuels. The excess energy can be stored underground as heat. At high enough temperatures (>150ºC) and discharge rates (>70 kW) the stored energy can be converted back into electricity. This turns the …

Thymosin Beta-4: A Novel Treatment For Acanthamoeba Keratitis, Victoria A. Murphey

All Theses

Acanthamoeba keratitis (AK) is a severe corneal infection caused by the free-living amoeba, Acanthamoeba. Both stages of its life cycle (trophozoite and cyst) cause infection, primarily in contact lens wearers. It is often misdiagnosed, leading to delayed treatment and poor clinical outcomes. Current treatment options for AK rely on anti-amoebic agents that are toxic to corneal epithelial cells. Further, no single drug can eliminate both forms of the amoeba. Approximately 30% of all AK infections require a corneal transplant.

Thymosin beta-4 (Tβ4) is a G-actin binding protein synthesized in almost all human cells, including corneal epithelial cells. Tβ4 exhibits …

Environmental Concern And Its Relationship To Community Attachment And Satisfaction In Southern West Virginia, Terence Asitibasi

All Theses

Extractive industries, especially coal, in the Appalachia region, have contributed to severe environmental challenges. Over the past years, residents in these areas faced increased health risks and damage to natural landscapes, impacting on how connected they are attached to their communities and overall satisfaction with their quality of life. Previous studies have examined these issues but with a focus on amenity-rich rural west, low amenities, urban-suburban, tourist-dependent and Great Lakes regions; this study looks at southern West Virginia, a coal-dependent region. And as such fills that gap by exploring how environmental concerns - combined with a longstanding reliance on coal …