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A Study Of A Monolithic Pulsed Fiber Laser With High-Peak And Average Power, Mark Mihalik May 2023

A Study Of A Monolithic Pulsed Fiber Laser With High-Peak And Average Power, Mark Mihalik

All Theses

Fiber lasers with high peak power, pulse energy and average power have numerous industrial applications. This project aimed to build a Master Oscillator Power Amplification fiber laser using commercial components and specialty fiber designed by Clemson University to exceed the power and energy targets of a previous Q-switched fiber laser design. The specialty fiber has a low numerical aperture of 0.028 and a unique geometric core design to minimize amplified spontaneous emission and reduce nonlinear effects in order to produce a high-peak power and high per pulse energy. The two stage, monolithic design targets 3.1 mJ per pulse, average power …


Quantifying Heterogeneity Along A Hillslope Using Seismic Refraction, Structure From Motion, And X-Ray Fluorescence In The Piedmont, South Carolina, Leah Topping May 2023

Quantifying Heterogeneity Along A Hillslope Using Seismic Refraction, Structure From Motion, And X-Ray Fluorescence In The Piedmont, South Carolina, Leah Topping

All Theses

The critical zone (CZ) is the life sustaining outer layer of the earth that spans from the top of unweathered bedrock to the tops of the trees. This dynamic zone is always evolving because a variety of chemical, physical, and biological processes transform bedrock into regolith, creating a spatially heterogeneous CZ architecture. This study aims to investigate the relationships between regolith thickness, seismic velocities, and chemical profiles as a function of slope position and it is hypothesized bedrock composition, fracture density, and foliation are the key factors controlling the physical heterogeneity in the top 1-2 meters of the CZ. To …


Making Of Wars: Analysis Of The Franchise Management Of God Of War And Gears Of War, William Seaton May 2023

Making Of Wars: Analysis Of The Franchise Management Of God Of War And Gears Of War, William Seaton

All Theses

Two of the most prominent franchises in the video game industry are God of War and Gears of War. These franchises, produced by Sony Interactive Entertainment (SIE) and Xbox Game Studios (XGS), respectively, and their presentation through company blogs offer insight into the franchise management strategies and franchise conceptualizations that their parent companies have. Understanding these franchising aspects furthers knowledge on how these companies, two of the three largest video game producers, engage in franchising behaviors through discourse. Utilizing a framework of the discourse of franchise paratexts, this thesis examines those franchising tactics and discursive frames that the companies …


The Characterization Of Atmospheric Turbulence And Its Effect On Laser Beam Propagation, Michael Cox May 2023

The Characterization Of Atmospheric Turbulence And Its Effect On Laser Beam Propagation, Michael Cox

All Theses

Having a controlled environment to measure atmospheric turbulence is essential to understanding its effects on different laser beam characteristics. The Clemson Variable Turbulence Generator (VTG) has the capability to propagate a laser beam up to 100 m and be able to dial many turbulence settings up to a heat flux of 357 W/m2. A high-speed camera, power detector, and high-resolution temperature probes characterize the VTG with theoretical turbulence spectrums. The exponent associated with the Rayleigh-Bénard (RB) temperature structure constant equation is studied. Two different laser beam profiles are used throughout this work: Gaussian and Asymmetric Perfect Vortex (APV). …


A Hidden Spider Web Of Roots: Utilizing Ground Penetrating Radar To Uncover Laterally Expansive Roots Of An Oak Tree, Megan Lapkoff May 2023

A Hidden Spider Web Of Roots: Utilizing Ground Penetrating Radar To Uncover Laterally Expansive Roots Of An Oak Tree, Megan Lapkoff

All Theses

Roots are critical to understanding tree health, subsurface biomass, and overall tree root stability. However, accessing tree roots is difficult and traditional methods used to quantify roots harm or kill the tree. Ground penetrating radar (GPR) provides a non-invasive way to characterize subsurface roots without harming the tree. GPR provides high-resolution data and the ability to collect data with high spatial coverage, making it an ideal tool for characterizing roots. GPR works by detecting contrasts in dielectric permittivity or electromagnetic (EM) velocity at interfaces between materials. Small scattering objects, like roots, generate predictable artifacts called diffraction hyperbolas. Diffraction hyperbolas will …


Using Linkedin To Promote Effective Corporate Social Responsibility Communication Through The B2b Supply Chain, Eden Wallace May 2023

Using Linkedin To Promote Effective Corporate Social Responsibility Communication Through The B2b Supply Chain, Eden Wallace

All Theses

Utilizing LinkedIn as a communication tool for Corporate Social Responsibility (CSR) communications is a relatively unknown area of CSR research. However, existing scholarship and current business trends suggest that LinkedIn may be beneficial for business to business (B2B) companies to communicate to their corporate partners. Findings from this study advance communication scholarship in this relatively new area of research and provide new understanding in how LinkedIn can be used by companies to strengthen business operations pertaining to corporate social responsibility. This thesis examines how Equinix, a B2B company, communicates its socially responsible initiatives on LinkedIn and to what extent its …


Development And Evaluation Of Machine Learning Models For Fugitive Methane Detection And Intensity Prediction, Jacquan Pollard May 2023

Development And Evaluation Of Machine Learning Models For Fugitive Methane Detection And Intensity Prediction, Jacquan Pollard

All Theses

The environmental impacts of global warming driven by fugitive methane (CH4) emissions have catalyzed significant research initiatives in developing novel technologies that enable proactive and rapid detection of CH4 emissions. This study evaluated the performance of data-driven machine learning (ML) models using support vector machines (SVM) to detect the presence of trace CH4 emissions and the corresponding intensity amongst various meteorological conditions. The author used simulation data comprising various meteorological parameters such as temperature, relative humidity, wind speed, water vapor, pressure, precipitation rate, and a parameter possessing trace concentrations of CH4 emissions. The novelty of the SVM models developed in …


Considerations Of The Impacts And System-Level Mitigation Of Electric Vehicle Charging On The Integrated Resource Planning Process, Grant Wollam May 2023

Considerations Of The Impacts And System-Level Mitigation Of Electric Vehicle Charging On The Integrated Resource Planning Process, Grant Wollam

All Theses

Electric vehicles (EV) are growing in popularity and therefore adoption rate. Best estimates predict a 6.2% EV adoption rate by 2035 in the southeastern United States. With this level of EV adoption, utility planners must begin to consider the impact that EVs will have on the power grid. This paper aims to help predict these EV impacts on the power grid. Specifically, an urban-commercial feeder is analyzed in detail to provide worst-case and most-likely results of varying levels of EV impact. Results show that a 26.2% peak increase is the most likely result for this feeder in 2035.

Mitigation techniques …


Laser Inscribed Graphene Aptasensor For Detection Of Apple Stem Pitting Virus, Yifan Tang May 2023

Laser Inscribed Graphene Aptasensor For Detection Of Apple Stem Pitting Virus, Yifan Tang

All Theses

Apple stem pitting virus (ASPV) is a latent RNA virus that could cause significant loss to apple production; early-stage field diagnosis could reduce the economic loss caused by ASPV infection. Biosensor is a promising user-friendly detection tool that could transduce biological or chemical interactions into electric signals. Among various types of biosensors, aptasensor, which use aptamers as recognition elements show potential as a high throughput, in-field test. The goal of this thesis is to develop an electrochemical aptasensor testing system for ASPV detection. The quality control study of laser inscribed graphene (LIG) based working electrode of the biosensor was conducted …


“Why I Sing The Blues”: The Blues And The Individuals Who Played Them, Daniel Byrd May 2023

“Why I Sing The Blues”: The Blues And The Individuals Who Played Them, Daniel Byrd

All Theses

Blues music is profoundly important to not only Black history but also to American history as a whole. While the blues has been examined by several scholars and writers throughout the years such as Samuel Charters, Paul Oliver, and Elijah Wald, much of the work done seems to be geared toward biographical information on these artists or defining what exactly the blues is. In my thesis, I argue that blues is important for another reason: it speaks to the individualism that was found within the African American community following Emancipation and this can be found primarily through a robust examination …


Assessing Key Factors Influencing Fire-Induced Spalling Of Concrete Using Explainable Artificial Intelligence (Xai), Mohammad Khaled Gazi Albashiti May 2023

Assessing Key Factors Influencing Fire-Induced Spalling Of Concrete Using Explainable Artificial Intelligence (Xai), Mohammad Khaled Gazi Albashiti

All Theses

This thesis adopts eXplainable Artificial Intelligence (XAI) to identify the key factors influencing the fire-induced spalling of concrete and to extract new insights into the fire-induced spalling phenomenon. In this pursuit, an XAI model was developed, validated, and then augmented with two explainability measures, namely, Shapley Additive exPlanations (SHAP) and Local Interpretable Model-Agnostic Explanations (LIME). The proposed XAI model not only can predict the fire-induced spalling with high accuracy (i.e., >92 %) but can also articulate the reasoning behind its predictions (as in, the proposed model can specify the rationale for each prediction instance); thus, providing us with valuable insights …


The Role Of Peer, Supervisor, Mentor, And Organizational Support On Workplace Ostracism And Inclusion, Erica Boucher May 2023

The Role Of Peer, Supervisor, Mentor, And Organizational Support On Workplace Ostracism And Inclusion, Erica Boucher

All Theses

A common workplace problem, particularly for women and other minorities, is workplace ostracism and a lack of inclusion into social and professional networks. There are many negative effects of workplace ostracism including decreased job satisfaction and productivity and increased turnover intentions. Conversely, inclusion is associated with positive interpersonal, psychological, and work-related outcomes for individuals. Given the importance of ostracism and inclusion, understanding predictors of these variables may aid the design of successful, supportive organizational interventions to create a positive environment for employees. Based on the literature, it seemed that ostracism and inclusion would be impacted by feelings of institutional, supervisor, …


Evaluating The Role Of Magnetic Materials In Mediating The Abiotic Degradation Of Chlorinated Ethenes At Tcaap-A Using A C14-Assay, Olivia Dunn May 2023

Evaluating The Role Of Magnetic Materials In Mediating The Abiotic Degradation Of Chlorinated Ethenes At Tcaap-A Using A C14-Assay, Olivia Dunn

All Theses

Among the most challenging sites to remediate are those where the groundwater is contaminated with large, dilute plumes of tetrachloroethene (PCE), trichloroethene (TCE), dichloroethene isomers (cDCE, tDCE, 1,1-DCE) and vinyl chloride (VC). Monitored Natural Attenuation (MNA) by abiotic processes may be a viable strategy, but it can be difficult to document. The overall objective of this project is to develop a deeper understanding of the role of magnetic materials in mediating abiotic degradation of low concentrations of chlorinated ethenes in aquifers. Authentic core aquifer sediment has been collected from Site A at the former Twin Cities Army Ammunition Plant (TCAAP) …


Comparative Design Space For Bistable Composites: An Integrated Framework Of Optimization, Finite Element Analysis, And Experimental Testing, Jonathan Bolanos May 2023

Comparative Design Space For Bistable Composites: An Integrated Framework Of Optimization, Finite Element Analysis, And Experimental Testing, Jonathan Bolanos

All Theses

Bistable composites are a class of advanced materials that can actuate between two stable shapes, making them attractive for a wide range of engineering applications. However, designing these composites to achieve optimal performance remains a challenging task. To address the challenge, this research develops an integrated framework that combines a genetic algorithm optimization technique, finite element analysis in Abaqus, and experimental testing to explore the design comparative space for square bistable composites composed of DA 409 carbon fibers. This leads to the study of generating an optimization algorithm to account for the relationship between the chances of a successful maximum …


It’S Free Real Estate: Benthic Assemblage Composition On Bluehead Chub Nests In Southeastern Streams, Isabel Evelyn May 2023

It’S Free Real Estate: Benthic Assemblage Composition On Bluehead Chub Nests In Southeastern Streams, Isabel Evelyn

All Theses

Positive interactions such as facilitative habitat modification are often strong drivers in structuring communities. The Bluehead Chub (Nocomis leptocephalus) is a common fish in Piedmont streams of the southeastern USA that builds gravel mound spawning nests that other native fish species utilize as critical spawning substrate. These nests are colonized by other freshwater benthic organisms, though few studies have investigated these colonizing assemblages. The goal of this study was to quantify differences in benthic assemblage composition and abundance between Bluehead Chub nests and unmodified streambed substrate as well as relative taxa microhabitat associations in relation to stream reach-wide …


Trust Is Not Enough: Examining The Role Of Distrust In Human-Autonomy Teams, Sydney Begerowski May 2023

Trust Is Not Enough: Examining The Role Of Distrust In Human-Autonomy Teams, Sydney Begerowski

All Theses

As automation solutions in manufacturing grow more accessible, there are consistent calls to augment capabilities of humans through the use of autonomous agents, leading to human-autonomy teams (HATs). Many constructs from the human-human teaming literatures are being studied in the context of HATs, such as affective emergent states. Among these, trust has been demonstrated to play a critical role in both human teams and HATs, particularly when considering the reliability of the agent performance. However, the HAT literature fails to account for the distinction between trust and distrust. Consequently, this study investigates the effects of both trust and distrust in …


A Predictive Analysis Of The Influence Of Thickness And Length On The Curvature Of Square Bistable Carbon Fiber Reinforced Composite Laminates, Stephan Terry May 2023

A Predictive Analysis Of The Influence Of Thickness And Length On The Curvature Of Square Bistable Carbon Fiber Reinforced Composite Laminates, Stephan Terry

All Theses

This thesis presents a predictive analysis of the stability of square bistable carbon fiber reinforced composite laminates under various loading conditions. The stability of these laminates is essential to their performance and longevity and is influenced by factors such as thickness and length. Analytical and numerical techniques are used to model the behavior of these laminates, and experimental tests are conducted to validate the models. The findings of this research have implications for the design and optimization of square bistable carbon fiber reinforced composites.

The study investigates the relationships between the side length and thickness of square laminates for bistability. …


Analyzing The Influence Of Stale Data On Autonomous Intelligent Transportation Systems, August St. Louis May 2023

Analyzing The Influence Of Stale Data On Autonomous Intelligent Transportation Systems, August St. Louis

All Theses

Intelligent transportation has been at the forefront of recent technological advancement. Individuals have developed a number of algorithms intended to automate and improve essential intelligent transportation functions. New developments include the incorporation of vehicle platooning and path planning algorithms within a number of use cases. Data perturbation can affect both algorithms significantly. We define data perturbation as any natural or unnatural phenomenon that causes the data to be skewed in any way. Perturbations within either system can cause its respective algorithm to operate with stale or incorrect data. This can significantly affect performance. This paper conducts a fault injection campaign …


Investigating Consistency Of Landscape-Scale Green Infrastructure In Local Government Policy, Anna Wilson May 2023

Investigating Consistency Of Landscape-Scale Green Infrastructure In Local Government Policy, Anna Wilson

All Theses

Planning for Climate Change is multifaceted and requires effort across all scales. Green Infrastructure networks of green spaces, natural lands, reserves, working lands, core habitat, riparian corridors, parks, open spaces, private conservations lands, and other complementary land uses work together to support life on earth and human existence through the ecosystem services provided. Clean air, clean water, carbon sequestration, food production, recreation, pollination, and spiritual and cultural benefits are only a few of the services that natural lands provide society. With climate change occurring due to human actions such as land use, development, and energy use, to name a few, …


An Investigation Of How Lighting And Rendering Technology Affects Filmmaking Relative To Arnold’S Transition To A Gpu-Based Path-Tracer, Mohammad Saffar May 2023

An Investigation Of How Lighting And Rendering Technology Affects Filmmaking Relative To Arnold’S Transition To A Gpu-Based Path-Tracer, Mohammad Saffar

All Theses

Computer Graphic (CGI) technology enables artists to explore a broad spectrum of

approaches and styles, from photorealistic to abstract, expanding the boundaries of traditional aesthetic choices.

Recent years have witnessed of 3D-CGI production shift towards greater physical fidelity driven by technological developments as well as consumer demand for realistic visuals; this trend can be found across various creative fields like film, video games, and virtual reality experiences with high-quality textures, lighting, rendering, and physics simulations providing enhanced levels of immersion for users.

Arnold is one of the famous rendering engines assisting artists to be more creative while producing photorealistic images. …


Quantum Artificial Intelligence Supported Autonomous Truck Platooning, Pronab Kumar Biswas May 2023

Quantum Artificial Intelligence Supported Autonomous Truck Platooning, Pronab Kumar Biswas

All Theses

Truck platooning can potentially increase the operational efficiency of freight movement on U.S. corridors, improving commercial productivity and economic vibrancy. Predicting each leader vehicle trajectory in the autonomous truck platoon using Artificial Intelligence (AI) can enhance platoon efficiency and safety. Reliance on classical AI may not be efficient for this purpose as it will increase the computational burden for each truck in the platoon. However, Quantum Artificial Intelligence (AI) can be used in this scenario to enhance learning efficiency, learning capacity, and run-time improvements. This study developed and evaluated a Long Short-Term Memory Networks (LSTM) model and a hybrid quantum-classical …


Visualizing Project Life-Cycle Data In A Hybrid Dashboard For Federal Capital Projects, Prajakta Bapat May 2023

Visualizing Project Life-Cycle Data In A Hybrid Dashboard For Federal Capital Projects, Prajakta Bapat

All Theses

Capital project owners face several challenges in extracting meaningful information from large and complex data sets generated throughout the life cycle of a construction project. Capital projects must strike a balance between intuition-driven and data-driven decision-making due to their sensitive and change-averse nature. The main objective of this study is to improve the structure, clarity, and interpretation of the construction data, and enhance the decision-making processes for federal capital projects. To achieve this goal, this study developed a hybrid dashboard tailored to the federal agencies’ requirements of performance assessment. This study is a sub-section of broader research – the Federal …


Design And Data-Driven Identification Of A Quadruped Robot, Dakota Rufino May 2023

Design And Data-Driven Identification Of A Quadruped Robot, Dakota Rufino

All Theses

The existence of nonlinearities and the lack of sufficient equations are fundamental challenges in modeling, analyzing, and controlling complex systems. However, recent developments revolutionizing the study of dynamical systems. An emerging method in nonlinear dynamical systems is the Koopman operator theory, which provides us with key advantages in performing the modeling, prediction, and control of nonlinear systems. The linear system representation allows us to leverage linear stability analysis. The first section of this thesis briefly covers the construction of a quadrupedal robot, a sufficiently complex nonlinear dynamical system, for the use of analyzing data-driven modeling techniques. The second section details …


Force Coefficients And Wind Loads For Wide Flange Section And Retrofitted Pipe Racks, Sovanroth Ou May 2023

Force Coefficients And Wind Loads For Wide Flange Section And Retrofitted Pipe Racks, Sovanroth Ou

All Theses

While relatively rare, the failures of steel structures occasionally occur due to extreme wind events such as hurricanes and tornadoes. The American Society of Civil Engineers (ASCE) provides well-defined guidelines for determining wind loads for regular buildings; nonetheless, the actual wind loads for complex open-frame steel structures are not as clearly understood by practicing engineers. Pipe bridges and pipe racks are open-frame structures, commonly used in many petrochemical plants. Over the years, additional pipes are often added to existing pipe racks or pipe bridges to accommodate changes in the operation needs of the petrochemical plant. The objectives of this study …


Procedural City Generation With Combined Architectures For Real-Time Visualization, Griffin Poyck May 2023

Procedural City Generation With Combined Architectures For Real-Time Visualization, Griffin Poyck

All Theses

The work and research of this paper sought to build upon traditional city generation and simulation in creating a tool that both realistically simulates cities and their prominent features and also creates aesthetic and artistically rich cities using assets that combine several contemporary or near contemporary architectural styles. The major city features simulated are the surrounding terrain, road networks, individual buildings, and building placement. The tools used to both create and integrate these features were created in Houdini with Unreal Engine 5 as the intended final destination. This research was influenced by the city, town, and road networking of Ghost …


Network Effects Of Emergency Department Clinician Strain And Patient Congestion, Aisha Nelson May 2023

Network Effects Of Emergency Department Clinician Strain And Patient Congestion, Aisha Nelson

All Theses

We develop a discrete-event simulation model to study how staffing strain affects patient outcomes across a network of Emergency Departments (EDs). The aim is to observe how clinician staffing and transfers throughout the system affect the system’s behavior. We will study the network of the seven EDs in the Prisma Health-Upstate system. Patient acuity and resource need are stratified using the five-level Emergency Severity Index (ESI). Patient flow data within and between EDs are collected from EPIC, staffing data from ShiftAdmin, and environmental COVID-19 prevalence data from the Department of Health and Environmental Control. Time periods include the Omicron wave …


An Agricultural Literacy Assessment Of Social Studies Teachers In South Carolina, Walker Reid May 2023

An Agricultural Literacy Assessment Of Social Studies Teachers In South Carolina, Walker Reid

All Theses

Studies in the career development of youth identify middle school as the optimum time for career exploration, as it advances young adolescents’ self-awareness, knowledge of prospective careers, and goal setting. In South Carolina (SC), only 5% (13 of 248) of public middle schools provide agricultural education. The purpose of this study is to measure any increase in agricultural awareness and literacy of South Carolina 8th-grade social studies teachers participating in a five-day study tour (SOCIAL tour) through mixed method procedures. A pre and post-tour survey given to participants indicated a significant increase in knowledge and perception of agriculture …


Nutrient Dynamics In Restored And Unrestored Urban Streams: A Study In The Southern Piedmont Ecoregion Of South Carolina, Emily Jordan May 2023

Nutrient Dynamics In Restored And Unrestored Urban Streams: A Study In The Southern Piedmont Ecoregion Of South Carolina, Emily Jordan

All Theses

The United States invests billions of dollars annually to perform stream restoration projects, yet few studies have investigated the effects ecological manipulation has on nutrient cycling and associated water quality. Water quality improvement remains a substantial motivation for mitigating catchment scale disturbances, especially in urban streams. Various land use practices impact the transfer and transport of nutrients such as ammonium (NH4-N), nitrate plus nitrite (NO3-N + NO2-N) and soluble reactive phosphorus (SRP) from land into the flowing waters of a watershed. The uptake length (Sw), or the distance (m) a dissolved nutrient …


Evaluation Of Zero-Net-Rate Pumping Tests, Austin Smith-Jones May 2023

Evaluation Of Zero-Net-Rate Pumping Tests, Austin Smith-Jones

All Theses

Accurately estimating the distribution of aquifer properties is key to understanding contaminant movement in the subsurface. The distribution of aquifer properties is typically addressed using slug or constant-rate well tests, and the pros and cons of these tests are well known. Slug tests are appealing because they avoid removing contaminated water, but their results are affected by well skin and the small volume of displaced water limits the volume of aquifer that can be evaluated. Constant-rate well tests have the disadvantage of requiring disposal of potentially contaminated water, but they can generate properties that are more representative than slug tests, …


Systematic Literature Review Of Roof Systems On Energy Efficiency Of A Building To Support An Ideal Study Framework, Ayushi Raj Dua May 2023

Systematic Literature Review Of Roof Systems On Energy Efficiency Of A Building To Support An Ideal Study Framework, Ayushi Raj Dua

All Theses

A sustainable building envelope is a crucial element to build energy efficient structures that contribute towards sustainable communities. The demand for sustainable building envelopes has grown in response to a growing emphasis on sustainable living. The roofing system is an important component of a sustainable building envelope because it influences the building's energy consumption and indoor comfort levels. The current study focuses on roofing systems and associated solar reflectance and albedo values to document the impact on energy efficiency via cooling/heating energy usage, dollar savings and temperature (ambient and surface) reductions due to the roofing systems. Additionally, the study focuses …