Digital Commons Network^™

Development Of A Method To Measure Blast Overpressure Exposure Using Orthogonal Sensor Orientations, Nicholas Kuehl

Masters Theses

Measuring and recording blast exposure to military personnel from shoulder-fired weaponry or improvised explosive devices to correlate health outcomes like mild traumatic brain injury has been a goal for many years. As such, many wearable sensors have been developed and tested for accuracy and reliability. Despite this, knowing the sensor orientation in relation to the blast source is important to fully correlate the actual personnel exposure to clinical outcomes. This research investigates whether pressures recorded at three independent orientations in the x, y and z planes can be combined to a representative pressure that is independent of orientation. Important metrics …

Power Flow Control Of The Triple Active Bridge Converter, Lauryn Reece Morris

Masters Theses

With the rise of renewable energies, electric vehicles, and microgrids, the development of power electronic topologies that can seamlessly integrate these systems into the grid is crucial. The triple active bridge is an extension of the dual active bridge topology and is capable of energy storage or renewable energy integration into a power electronic converter and thus the power grid. Consisting of three H-Bridge converters, the triple active bridge topology is an expanding area of research to meet these growing demands. With the addition of the third bridge, the system has additional nonlinear characteristics which introduce complexity in solving for …

Critical Behavior Ofthedilutedquasi-Onedimensionalquantum Ising Model, Logan Bradley Sowadski

Masters Theses

We explore the phase transition in the diluted quasi-one-dimensional quantum Ising model. We begin by giving an introduction to the Ising model followed by derivations of the properties and observables. A brief overview of Monte-Carlo simulations is also given focusing on two algorithms that make simulations for physically realizable systems possible, the Metropolis and Wolff algorithms. We finally discuss the concept of random disorder in the system and the effects this can have on the bulk of the system.

These concepts are then directly applied to a quasi-one-dimensional Ising model. Motivated by recent experiments on the spin-chain material cobalt niobate, …

An Experimental Study Into The Methods Of Water Coupling And Their Impact On Kinetic Energy And Blast Over Pressure Through The Use Of A Ballistic Pendulum, Jeremiah Alan Cohn

Masters Theses

Water coupled charges utilize the material properties of water to alter their behavior for reductions in overpressure and increases in kinetic energy. Although water coupling has been studied directly, combined usage of the two primary methods of water coupling, tamping and pushing, hinders further research. This study addresses the gap in literature by comparing ballistic pendulum and blast data for charges with water tamping and pushing to determine differences in kinetic energy, peak overpressure, impulse, noise and duration of fireball. The results showed that water tamping provided a 69.1% increase in kinetic energy, an 18.6% reduction in incident overpressure, a …

Aerodynamic Design Workflow Optimization For Fsae: Advanced Cfd And Hpc Automation, Kyle Maynor

Masters Theses

This research identifies and resolves inefficiencies in the Computational Fluid Dynamics (CFD) workflow of the Missouri S&T Racing Formula SAE Team’s aerodynamic development. Key bottlenecks were found in simulation runtime, laborious simulation preparation, an overly manual simulation submission process, and unchecked mesh quality. A fully reimagined workflow was implemented with simulation parameters to adjust vehicle attitudes. From this, an automated design sweep could be executed to generate aero maps of the developing vehicle using the Design Manager Project. A Python-based submission app handles the terminal interfacing and macro editing that significantly slowed the job submission process before. Using a university …

Development Of Stalling Detection Algorithms And Operator Behavior Models For Evaluating Hydraulic Excavator Performance, Mateo Fernando Montenegro Defaz

Masters Theses

This study aims to develop a reliable algorithm for stalling detection and investigate how operator behaviors impact the truck-loading process, focusing on swing and bucket rotations. While the study of excavator digging conditions and equipment performance is well understood, describing stalling from telemetry data and the influence of operators’ behavior on overall system efficiency remain underexplored. This study seeks to: (i) develop a reliable algorithm for stall detection by analyzing key operational variables such as velocity and angles; (ii) implement statistical and machine learning techniques, specifically a Support Vector Machine (SVM) classification algorithm, to differentiate between ideal and non-ideal digging …

Design Of A Spacecraft Power System Experiment, Jay Bakulkumar Kamdar

Masters Theses

This research delves into the design, implementation, and analysis of a controlled experimental framework for photovoltaic cell characterization and its application in spacecraft power systems. Such a system was simulated and validated by benchmarking characteristics of a photovoltaic module and implementing them in a system design simulation yielding performance data for comparative analysis. A hardware setup was developed to perform IV characterization tests under steady state thermal conditions. Experiments conducted across various thermal regulation profiles helped quantify the effects of temperature on the photovoltaic performance parameters. Active cooling reduced the steady state cell temperature by 17.9% and improved the cell …

Overall Tropospheric Noise Over The St. Louis Using Isce And Fringe Processing, Maryann Lee

Masters Theses

Interferometric Synthetic Aperture Radar (InSAR) is a satellite-based technique that is used to measure various aspects such as ground deformation, earthquakes, volcanic activity, and motions of glaciers. Although the technique has proved very useful, measurements errors such as ionospheric and tropospheric noise, and deformation often cause problems with making precise measurements. InSAR is a tool used in geodesy that is used to measure the change of surface deformation over time through a series of repeated SAR acquisitions. These errors in the acquisitions occur from factors of signal decorrelation, atmospheric delays, and phase unwrapping errors that affect the accuracy and precision …

Evaluating Tropospheric Delay Modeling For Enhanced Geospatial Accuracy, Adeyinka Olaoluwa Olaseinde

Masters Theses

Interferometric Synthetic Aperture Radar (InSAR) is a vital technique for monitoring ground surface deformation across large spatial scales. However, variability in atmospheric water vapor, pressure, and temperature introduces tropospheric delays that can significantly affect measurement accuracy. These delays are often corrected using outputs from numerical weather prediction (NWP) models. RAiDER, an open-source Python package, facilitates this by estimating tropospheric delays using models such as the High-Resolution Rapid Refresh (HRRR). Previous studies have shown that weather model–based corrections can substantially reduce atmospheric noise in InSAR data but also highlight persistent residual errors, especially at spatial scales smaller than the model grid …

Enabling Drone-Integrated Active Microwave Thermography Via A Slot Antenna Design, Alec P. Fitzmaurice

Masters Theses

Civil infrastructure inspection quality and inspector safety may be enhanced from the advancement in the capabilities of nondestructive testing and evaluation of remote or otherwise hard-to-reach areas such as nuclear power plants, wind turbines, bridges, or other civil infrastructure using drone-based Active Microwave Thermography (AMT). AMT is a nondestructive testing technique that utilizes high frequency energy (often radiated from an antenna) to induce heating in a specimen. Following this thermal excitation, an infrared camera is used to measure the resulting surface thermal profile. From this, defect indications may be detected. To enable drone-based deployment of AMT, where the antenna size …

Multimodal Spatio-Temporal Pest Prediction In Precision Agriculture, V N S Kameswari Sri Sindhu Manchikanti

Masters Theses

Accurate and timely prediction of pest outbreaks is a cornerstone of Agriculture 5.0, which emphasizes intelligent, data-driven, and sustainable decision-making in crop production. This research presents a multimodal deep learning framework that integrates heterogeneous data sources, including weather parameters, satellite-derived vegetation indices, and static and dynamic soil attributes, to forecast pest population dynamics under varying management and ecological conditions. The proposed framework employs modality-specific deep encoders to capture distinct temporal and spatial representations from each data stream and merges them through a late-fusion architecture that learns cross-modal dependencies critical to pest emergence. The design further incorporates treatment-aware and multiclass extensions, …

Extraction And Separation Of Metal Cations From Synthetic Acidic Solutions Using Emulsion Liquid Membrane, Nouhaila Filali

Masters Theses

The work is organized into two main papers supported by experimental and comparative studies using Emulsion Liquid Membrane (ELM) systems. The first paper explores the individual extraction of heavy metals (Cd, Cr, As, Ni) from synthetic phosphoric acid using Alamine 336 and D2EHPA as carriers. Alamine 336 achieved the highest extraction efficiency (>90%) and stability, offering a promising route to reduce toxic impurities in fertilizer-grade acid. The second paper examines the selective separation of Ni2+ and Co2+ from various acidic solutions using the ELM configuration. Systematic variation of carriers, stripping agent and feed acidity, clarified transport mechanisms and stability, …

Testing The Life-History Dependence Of Dietary Restriction Effects On Oxidative Molecular Damage In Hornworms, Fahime Taheri

Masters Theses

DR and ambient temperature are two environmental factors widely implicated in shaping organismal maintenance and longevity through effects on metabolic rate and oxidative damage. This study tests whether DR and reduced body temperature independently or interactively reduce oxidative protein damage in the gut of tobacco hornworm larvae, a short-lived ectotherm whose life history may constrain typical DR responses. Larvae hatched from eggs were allocated to two feeding regimes (AL and DR) and to 20 °C and 30 °C. At a defined endpoint, guts dissected and homogenized, and analyzed for protein carbonyl content and total protein. Protein damage was expressed as …

Application Of Edge-Enhanced Phase Analysis To Active Microwave Thermographic Measurements, Douglas Blaine Fleetwood

Masters Theses

Nondestructive testing and evaluation (NDT&E) encompasses a range of inspection techniques that assess materials, components, and structures while maintaining their integrity and performance. Among these techniques, thermography is particularly attractive due to its non-contact imaging approach with easy-to-interpret results. Active Microwave Thermography (AMT) has emerged as a promising NDT&E inspection technique that utilizes electromagnetic energy to heat materials through dielectric and magnetic absorption, with subsequent infrared imaging used to detect subsurface defects. While AMT offers significant advantages including material-specific heating optimization and lower power requirements compared to conventional thermographic methods, the technique faces a persistent challenge related to the thermal …

Son Of A Preacher Man: There Is Something Beautiful Waiting To Be Born Within You, Georgia Peddie

Masters Theses

In moments where we feel that there is nowhere to go, to turn…in the aftermath of a personal storm, there is One who is always there. Open your heart to discover, dare to surrender…

Are second chances meant for everyone?

A woman who has lost her only son, lost her marriage…

A man who lost a best friend and then his father…

A God of second chances introduces the two

A story of grief and love…

A story of letting God in to move forward…

Son of a Preacher Man is a love story exploring loss, love, and surrender.

Set …

Earnest And Authentic Translation From Victorian England To The Wilde West, Carly E. Mcclure

Masters Theses

Oscar Wilde’s critical, theatrical, and fiction works (notably The Importance of Being Earnest and The Picture of Dorian Gray), critique Victorian societal norms through themes of authenticity, duplicity, and identity. In a period marked by strict domesticity and concealed social contradictions, Wilde’s satire dismantles rigid ideologies, exploring self-discovery and societal expectations. Through a retroactive and contemporary definition of authenticity, Wilde’s works exhibit an advocacy for art as a central pursuit rather than purely a reflection of societal norms, which is a defining value of his Authenticism. Wilde’s emphasis on Aestheticism is a key component of his authentic representation of self, …

George Butterworth’S Musical Contribution To A.E. Housman’S A Shropshire Lad And Bredon Hill And Other Songs, Brenden M. Smith

Masters Theses

​George Butterworth and A.E. Housman were highly influential scholars at the turn of the 20th century. Both men were well known for contributing to folk genres in their corresponding fields. Many famous composers implemented Housman's works, the most conspicuous of which was Butterworth. The composer was tragically killed in World War I in 1916, and today, two song cycles of his remain, both are the poetry of A.E. Housman.

​Butterworth's Shropshire Lad cycles are some of the less-performed works in our classical repertory today because Butterworth abandoned most of his works during World War I. The following paper will give …

Mundane And Magical: How Studio Ghibli Adapts Female Protagonists Toward Gendered Narrative Reconstruction, Lauren F. Frymire

Masters Theses

This paper explores the literary significance of film adaptations, specifically focusing on Studio Ghibli's adaptations of children's novels. Through examining the themes of self-discovery, transformation, and cultural representation in films like *Kiki's Delivery Service*, *Tales from Earthsea*, and *Howl's Moving Castle*, it discusses how Ghibli’s choice of young female protagonists connects with both their original audiences and broader cultural narratives. Drawing on Carl Jung’s theory of the unconscious, Linda Hutcheon's theory of adaptation, and Mariah Chiara Oltolini’s insights on mass media adaptations, the study argues that these films successfully preserve the "magic" of their source material while offering unique, culturally-infused …

Music Sight-Reading Systems In Secondary Choral Education, Savanna N. Hagerty

Masters Theses

The purpose of this qualitative case study is to demonstrate the effects of various music reading systems in the context of secondary choral education by exploring the incorporation of the chosen system, determining the benefits of student’s musical understanding and performance because of that system, and defining how various music reading systems compare to one another. The data will be drawn from the survey of middle and high school chorus educators in the 14th District of the Georgia Music Educators Association. The importance of this study is that it will present the impact associated with specific sight-reading methods as they …

The Choir Effect: A Case Study On Adolescent Boys’ Academic Self-Confidence, Dedrick L. Guyton

Masters Theses

Realizing the cognitive and social benefits of choral participation in early adolescent boys may be critical in understanding their academic self-confidence. This qualitative research study examines large public school choral ensemble participation and the academic self-confidence of boys between the ages of twelve and fourteen. Previous studies on formal music education in children suggest that active music participation has academic and social benefits. However, research has not addressed the effects of early music exposure on adolescent boys who sing in a large public school choral ensemble. The research illustrates the experiences of approximately 20 twelve-to-fourteen-year-old male choral ensemble members within …

The Impact Of The Virginia Department Of Education On Music Education During The Covid-19 Pandemic, Erica S. Denham

Masters Theses

This research was to identify how the Virginia Department of Education handled Music Education during the COVID-19 pandemic. When proper support from the Department of Education is given, music educators can run their programs efficiently without doing much research on their own. By examining the COVID-19 policies and procedures created by the Virginia Department of Education, this qualitative study investigated how much emphasis was put on the unique needs of an education in music. Therefore, this investigation examined these policies and procedures to note in what ways music education was taken into special consideration. This study explored three distinct phases …

Jesus's Use Of "Woman" In The Fourth Gospel, Cori Mcgrew

Masters Theses

In John's Gospel, Jesus uses the word "woman" in surprising ways: to address his mother at the wedding in Cana and at the Cross, to address a woman in Samaria, in a parable about a woman giving birth in his Final Discourse, and finally, to address Mary Magdalene at the garden tomb. This thesis uses the unusual way Jesus addresses his mother in the Fourth Gospel as a catalyst to find a connection between all five uses of "woman" by Jesus in John's Gospel, concluding that these instances evoke creation imagery, in particular of Genesis 3:15. The allusion to Genesis …

When Books Come Alive: Crafting A Clean Book-To-Screen Adaptation Worth Watching, Larah C. Cox

Masters Theses

The Things We Leave Unfinished is a screenplay adaptation of the novel of the same name by Rebecca Yarros. In this story, audience members will watch as the characters fall in love during both World War II and the present time, and experience how these themes become unbreakable family ties and strong women. This thesis, due to the importance of availability of clean entertainment for Christians to enjoy, explores what is necessary for a filmmaker to provide that kind of film, and seeks to find the answers in what makes a book-to-screen adaptation successful and worthy of an audience (both …

You're With Me While I Wait, Emily Williams

Masters Theses

The provided thesis is a compilation of an artistic statement, critical paper, and chapters of a novel which I have crafted during my MFA program. In essence, this thesis reflects all I have learned in my academic endeavors to this point and how those endeavors have encouraged my creativity.

For the artist statement, I share the creative process behind my manuscript, including the “why” of glorifying God with my writing that has fed the chapters for my novel. My critical paper highlights the craft element of medical theme weaved throughout the story. I examine the inclusion of medicine in literary …

Mindful Design For Adolescent Minds: Moving Away From Digital Hook Models To Mindful Innovation Models, Donald R. Hendriksen

Masters Theses

In the domain of digital technology, an ethical issue surfaces from the design of user interfaces and applications tailored for adolescent users. Techniques frequently incorporated into these targeted systems, such as continuous scrolling, rewards for uninterrupted use, and game-like features, are increasingly linked to addictive inclinations in adolescents. Central to this issue is the stimulation these apps provide for the dopamine system. Adolescents, being in a vital phase of psychological growth, are especially vulnerable to the dangerous consequences of such designs. These effects are extensive and include a perceptible drop in academic achievement, a weakening of relational skills, and an …

A Text-Linguistic Analysis Of Deliberative Discourse In Hebrew With Review Of The Lxx Translation, Timothy C. Lang

Masters Theses

This thesis intends to demonstrate that linguistics, specifically the text-linguistic (TL method), may be practically applied to biblical translation and interpretation. Consequently, one may use text-linguistics to discover the biblical author’s intended meaning expressed through the structure of the text. Foundationally, the work of Robert Longacre and Kenneth L. Pike is applied. Functionally, this thesis tests the process described in the dissertation of Ewell Ray Clendenon. While the word test is used, the test is not intended to validate or invalidate the TL method. Rather, the test is analogous to that of a mathematician whereby a proof test is applied …

Mixed Race Futurity Through Contemporary Archetypes: Mutants, Cyborgs And Dhampirs, Kobe Jackson

Masters Theses

Analysis of Enlightenment philosphes reveals how the contemporary archetypes, mutants, cyborgs and dhampirs may be situated as sources for understanding mixed race positionality. Arranged on a trajectory of hybrid mythology reaching from ancient times into the present day, their contemporary relevance is put into context. Through modern speculative fiction, historical mythology and the theoretical frameworks of sociology, and philosophy, two tropes are revealed to be imposed roles for mixed race people. The first one, the tragic hybrid is a term which references a character specific to the context of American colonial slavery, the tragic mulatto. By reframing the term, tragic …

The Apostle Paul's Teaching On Life After Death: A Model Of Christ's Life, Death, And Resurrection, Keri A. Thompson

Masters Theses

There are many questions and differing views surrounding what happens to the soul after death. Through his letters collected in the New Testament, the Apostle Paul offers insight into the existence of the believer's soul in an intermediate state following death and prior to the resurrection of the body. Through a brief overview of Old Testament teachings on the subject, Jewish views on life after death during the intertestamental period, and common Greek thought on the body and soul, the possible presuppositions and influences on the Apostle Paul's view of life after death and the intermediate state are uncovered. Detailed …

Graphic Design And Automation, Ellen Fixsen

Masters Theses

This research examines the use of artificial intelligence (AI), machine learning, and DIY-centric template tools in the area of graphic design and how they affect businesses using them for branding and visuals, and how that impacts the graphic design industry. Although the use of AI in graphic design is a fairly new trend, the technology has been developing over the last several decades, if not longer. With AI definitely here to stay, it has become vital to explore how businesses and designers will move forward and utilize the tools it offers. Incorporating historical and statistical evidence, professional insights, case studies, …

The War Within: Mexican Drug Cartels And The Impact Of The Drug Trade On Society And Governance, Haris Mohammad

Masters Theses

This thesis examines the origins, activities, and societal impacts of Mexican drug cartels, while assessing the effectiveness of governmental and international responses to their development and influence. This thesis examines the evolution of the cartels, starting with their collaboration with traffickers in Colombia and concluding with their supremacy in the global drug trade. The investigation elucidates the social and political factors that have facilitated their growth. These factors include pervasive corruption, economic disparities, and inadequate governance, all of which have fostered an environment conducive to the emergence of cartels.

This thesis examines the detrimental effects of cartel involvement on Mexican …