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Graduate Theses and Dissertations

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Evaluation Of Metabolizable Energy And Phosphorus Availability In Conventional And Fractionated Dry-Grind Corn Co-Products For Poultry, Luke Parisi Jul 2026

Evaluation Of Metabolizable Energy And Phosphorus Availability In Conventional And Fractionated Dry-Grind Corn Co-Products For Poultry, Luke Parisi

Graduate Theses and Dissertations

The purpose of this research was to determine the availability of energy and phosphorous (P) in dry-grind corn co-products in chickens was assessed. In the first objective, the determination of energy availability, both a precision-fed rooster assay and an ad libitum fed broiler chicken assay were used in order to elucidate energy availability in corn co-products. There were 8 samples of corn fermented protein (CFP) and 2 samples of conventional distillers dried grains with solubles (CDDGS) evaluated for metabolizable energy (ME). The CFP contained a mean CP and crude fat of 55 and 3.7% (DM basis), respectively, compared with 30 …


Univariate And Bivariate Binary Spatial Regression Models With Application To Plant Abundance Data, Amir Hamza Akash Jul 2026

Univariate And Bivariate Binary Spatial Regression Models With Application To Plant Abundance Data, Amir Hamza Akash

Graduate Theses and Dissertations

Analyzing species distributions is of prime interest in ecological research. Prevalence of a species usually depends on several environmental and topographic features not all of which can be quantified or measured. Spatial random effects play an important role as a surrogate for missing features that can explain similarity in species prevalence patterns between neighboring locations. In this thesis, we focus on a dataset on abundance of plants in the southern part of South Africa. First, we build a hierarchical Bayesian model for binary regression, using the probit link, on presence/ absence of a species based on available covariates. Since the …


Impact Of Baseline Cognition On Dual-Task Performance: Tracking Verbal Accuracy And Fluency In Adults At Risk For Alzheimer’S Disease, Rebecca Nicole Frederichs Jul 2026

Impact Of Baseline Cognition On Dual-Task Performance: Tracking Verbal Accuracy And Fluency In Adults At Risk For Alzheimer’S Disease, Rebecca Nicole Frederichs

Graduate Theses and Dissertations

Alzheimer’s Disease (AD) is increasing in prevalence as life expectancy continues to rise, highlighting the need for sensitive measures to detect early cognitive changes. This study examined the effects of baseline cognitive status on dual-task performance over time, in terms of dual-task cost, verbal fluency, and verbal accuracy in older adults at risk for AD. This study utilized a quantitative secondary analysis of the longitudinal dataset, the Digital, Cognitive, Multi-Domain Alzheimer Risk Velocity (DC-MARVel) study (Gray et al., 2022). Participants were categorized into low, medium, or high cognitive tertiles based on baseline Repeatable Battery for the Assessment of Neuropsychological Status …


Evaluation Of Thresholds For Adult Tarnished Plant Bug, Lygus Lineolaris (Beauvois), In Thryvon® Cotton, William Anderson Fletcher Jul 2026

Evaluation Of Thresholds For Adult Tarnished Plant Bug, Lygus Lineolaris (Beauvois), In Thryvon® Cotton, William Anderson Fletcher

Graduate Theses and Dissertations

Tarnished plant bug (TPB) is the most economically damaging insect pest of Mid-South cotton. TPB reduces yield is reduced by damaging squares, terminal growth, and small bolls, resulting in reduced yield. Currently, cotton grown in the Mid-South averages 1-6 insecticide applications per year for control of TPB. The introduction of ThryvOn® cotton technology provides a new management strategy for TPB control. ThryvOn® technology produces the Bacillus thuringiensis (Bt) protein Mpp51Aa2, which has insecticidal activity on TPB. A field study was conducted at five locations in 2024 and seven locations in 2025 across the Mid-South to evaluate different threshold levels for …


Review And Experimental Demonstration Of The Concrete Maturity Method For Early Opening Of Arkansas Pavements, Chase Dykema Jul 2026

Review And Experimental Demonstration Of The Concrete Maturity Method For Early Opening Of Arkansas Pavements, Chase Dykema

Graduate Theses and Dissertations

Many Department of Transportation (DOT) specifications across the United States require a minimum time to gain strength for concrete pavements before they can be opened to construction equipment or traffic. This period is anywhere from three to seven days. However, concrete pavements can often be opened earlier as long as a minimum required strength is attained. With the development of modern pavement mixes, this strength can often be achieved well before the required curing period has passed. Allowing contractors to open pavements earlier increases construction efficiency. One nondestructive method of proving a pavement has achieved the required strength is the …


Coupled Effects Of Sub-Atmospheric Pressure And Surface Structures On Pool Boiling Performance And Hysteresis Pathways, Mohammad Ishraq Hossain Jul 2026

Coupled Effects Of Sub-Atmospheric Pressure And Surface Structures On Pool Boiling Performance And Hysteresis Pathways, Mohammad Ishraq Hossain

Graduate Theses and Dissertations

The increasing power density of microelectronics has created a need for cooling technologies capable of maintaining low operating temperatures. Sub-atmospheric pool boiling of water is promising because reducing saturation pressure lowers the boiling temperature, enabling two phase cooling within electronics-relevant temperature limits. However, reduced pressure also affects CHF, HTC, and post-CHF recovery. In this work, pool boiling experiments were conducted on flat copper, microchannel copper, and micro-pin-fin copper surfaces over 10–100 kPa to examine the coupled effects of pressure and surface structure. CHF and HTC increased with pressure, while structured surfaces enhanced both relative to flat copper. Surface structure dominated …


Dragging The Self: Manifesting Genderqueer Identity As A Drag King Performer And Teacher, Jasmine Mcmasters Jul 2026

Dragging The Self: Manifesting Genderqueer Identity As A Drag King Performer And Teacher, Jasmine Mcmasters

Graduate Theses and Dissertations

This thesis investigates drag performance as a site of gender identity formation, pedagogical practice, and arts-based inquiry through a critical autoethnographic methodology. Drawing on my lived experience as the drag king, Jas Mania, I investigate how drag functions as a dialogical relationship between performance and self, facilitating an ongoing exploration of my identity as a queer, non-binary artist and educator. Situated within theories of gender performativity, queer phenomenology, queer temporality, and performative pedagogy, this research considers how embodied performance generates knowledge that extends beyond the stage and into everyday life. Using improvisatory arts-based methods of reflective journaling and performance production, …


Cosmic Chirps: Studies In The Evolution And Detection Of Gravitational Waves From Compact Binary Systems, Calla Irene Bassett Bigg Jul 2026

Cosmic Chirps: Studies In The Evolution And Detection Of Gravitational Waves From Compact Binary Systems, Calla Irene Bassett Bigg

Graduate Theses and Dissertations

This dissertation will go over three projects that have to do with gravitational wave mechanics and history. The first project is about investigating computationally cheaper approximation methods for modeling EMRI (extreme mass ratio inspiral) orbits using interpolation. Two codes are interpolated together for full coverage of the parameter space. This interpolation has yet to be tested for accuracy but the preliminary outlook is positive. This may well be a useful tool for studying EMRIs. The second project is investigating the origins of the term “chirp mass”, where chirp mass is a combination of the two masses in a binary that …


Investigating And Comparing Special Education Teachers’ Perceptions Of Workload Manageability And The Relationship With Attrition, Kasey Sanders Jul 2026

Investigating And Comparing Special Education Teachers’ Perceptions Of Workload Manageability And The Relationship With Attrition, Kasey Sanders

Graduate Theses and Dissertations

This study investigated special education teachers’ (SETs) perceptions of workload manageability and the relationship between these perceptions and intentions to quit. State-wide data from the Kansas State Department of Education showed a significant increase in the number of special education vacancies from a total of 161, or .03% in the 2019-2020 school year to 557, or 11%, in the 2024-2025 school year. Over the past four years, the number of special education teachers with a non-traditional license has increased from 312, or 6%, in the 2021-2022 school year to 427, or 8%, in the 2024-2025 school year (KSDE, 2025). Using …


Beyond Semantic Matching: Integrating Graph Structures, Boolean Logic, And Interactive Aggregation In Modern Retrieval, Quan Mai Jul 2026

Beyond Semantic Matching: Integrating Graph Structures, Boolean Logic, And Interactive Aggregation In Modern Retrieval, Quan Mai

Graduate Theses and Dissertations

Modern Natural Language Processing (NLP) and Information Retrieval (IR) systems have achieved remarkable success in semantic understanding; however, they continue to struggle with complex logical reasoning, structural interactions, and dynamic aggregation. This dissertation presents a comprehensive framework to enhance the structural, logical, and interactive capabilities of language models and retrieval systems across four progressive studies. First, we address the challenge of modeling dynamic conversational logic in online debates. We introduce a Sequence Graph Network (SGN) that captures the temporal and interactive exchange of ideas—such as counterarguments and reinforcements—by updating node features sequentially through a novel Sequence Graph Attention (SGA) layer. …


Effects Of Soil Contamination On The Efficacy Of Antimicrobial Washes For Contaminated In-Shell Pecans, Erin Ramsay Jul 2026

Effects Of Soil Contamination On The Efficacy Of Antimicrobial Washes For Contaminated In-Shell Pecans, Erin Ramsay

Graduate Theses and Dissertations

A study was done to evaluate the survival of Shiga toxin-producing Escherichia coli (STEC) on directly and soil-inoculated in-shell pecans over a 28-day period, determine STEC reductions after treatment with individual and sequential antimicrobial washes on direct and soil-inoculated in-shell pecans, and determine the cross-contamination potential of the spent pecan washes after a treatment. Pecans were directly and soil-inoculated with an STEC cocktail (O157:H7, O157:NM, O121, and O26). Direct inoculation was achieved by spraying the STEC cocktail on the pecans and homogenizing by hand for 2 min. For the soil-inoculation method, autoclaved pecan tree orchard soil was sprayed with the …


Soil Moisture Regime Effects On Greenhouse Gas Emissions In A Native Tallgrass Prairie In The Ozark Highlands, Thomas William Dockery Jul 2026

Soil Moisture Regime Effects On Greenhouse Gas Emissions In A Native Tallgrass Prairie In The Ozark Highlands, Thomas William Dockery

Graduate Theses and Dissertations

The Ozark Highlands is an ecoregion in the mid-southern portion of the United States that is characterized by a mosaic of tallgrass prairies, oak (Quercus spp.) savannas, and oak-hickory (Carya spp.) forests, which represents a unique biophysical transition zone between the relatively dry grasslands of the west and the humid forests of the southeast. Quantifying greenhouse gas (GHG) emissions, namely carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), from natural, undisturbed ecosystems is critical to understanding atmospheric warming and climate-change implications. The objective of this study was to simultaneously evaluate CO2, CH4, and N2O emissions in an aquic and …


Drawing Conclusions: Autonomy And Mental Maps In Denmark And The Faroe Islands, Erik Steven Breidinger Jul 2026

Drawing Conclusions: Autonomy And Mental Maps In Denmark And The Faroe Islands, Erik Steven Breidinger

Graduate Theses and Dissertations

This dissertation develops and tests a comparative heuristic device called optimal autonomy to explain when and how autonomous territories, or simply autonomies, become durable components of the global system of sovereign states. Drawing on a mixed‑methods case study of Denmark and the Faroe Islands, the study operationalizes optimal autonomy as a heuristic device using three interacting metrics: territorial delineation, national distinction, and state dependence. Using semi‑structured interviews with public officials and a mental‑mapping experiment with university students, this research shows that optimal autonomies are not made from single institutional designs but rather a dynamic equilibrium between maximal territorial delineation, medial …


I Can’T Fight This Feeling Anymore: Investigating The Influence Of Cognitive Emotion-Related Impulsivity On Behavioral Impulsivity Through The Lens Of Emotion Regulation In Daily Life, Dylan Shelton Jul 2026

I Can’T Fight This Feeling Anymore: Investigating The Influence Of Cognitive Emotion-Related Impulsivity On Behavioral Impulsivity Through The Lens Of Emotion Regulation In Daily Life, Dylan Shelton

Graduate Theses and Dissertations

Emotion-related impulsivity is a transdiagnostic risk factor that is seen across a wide range of psychiatric disorders. Traditionally, emotion-related impulsivity has been studied at the trait level, reflecting that it is something that someone has rather than something that they do. However, recent studies have highlighted the importance of viewing emotion-related impulsivity as a dynamic process that occurs in response to momentary emotional experiences. However, it is less clear about the influence of attentional and evaluative processes on downstream behavioral responses that may be aimed at rapidly regulating emotion. This study aimed to investigate emotion-related impulsivity through the lens of …


Online Sports Betting Legalization And The Reallocation Of Retail Investor Information Search Toward Lottery-Type Stocks, Jared Richard Stark Jul 2026

Online Sports Betting Legalization And The Reallocation Of Retail Investor Information Search Toward Lottery-Type Stocks, Jared Richard Stark

Graduate Theses and Dissertations

I examine whether the legalization of online sports betting is associated with a reallocation of retail investors' information search across stocks around firm earnings announcements (EAs). Prior work links legalization to a reallocation of household capital, but its association with information search has not been examined. Exploiting the staggered timing of legalization following Murphy v. NCAA, I use four treated and four matched control states over 2017-2024 and measure search using state-level Google Trends data for firm tickers. Treated and control states are already on different trajectories before any legalization, which confounds the average-level comparison. The association I can document …


Potassium Fertilization Timing And Critical Stalk Potassium Concentration As Tools To Improve Corn Production, Gabriela Andrade Leite Mengez Jul 2026

Potassium Fertilization Timing And Critical Stalk Potassium Concentration As Tools To Improve Corn Production, Gabriela Andrade Leite Mengez

Graduate Theses and Dissertations

Potassium (K) is a common yield-limiting nutrient in Mid-Southern U.S. corn (Zea mays L.) production, emphasizing the importance of effective diagnostic tools to support fertilizer decision-making. This study integrated two approaches to improve K management in irrigated corn systems: (i) evaluating K fertilization timing to identify in-season opportunities for correcting K deficiency, and (ii) developing a corn stalk-based diagnostic test to assess end-of-season K and nitrate-nitrogen (NO₃-N) status and fertilizer adequacy. Seven (2024-2025) and eight (2023-2024) field trials were conducted across Arkansas for the K application timing and stalk testing studies, respectively. For the K timing study, fertilizer-K (112 kg …


Physics-Informed Machine Learning For Predictive Digital Twins In Greenhouses, Hoang Kim Tran Jul 2026

Physics-Informed Machine Learning For Predictive Digital Twins In Greenhouses, Hoang Kim Tran

Graduate Theses and Dissertations

Greenhouses are widely used to create controlled environments for crop production, where indoor climate variables such as air temperature, relative humidity, CO2 concentration, radiation, and soil or substrate conditions directly affect plant growth, yield, energy consumption, and resource use. However, greenhouse climates are highly dynamic because they are influenced by complex interactions among outdoor weather, greenhouse structure, crop transpiration, heating systems, ventilation, screens, fans, irrigation, and other actuators. Building digital twins for greenhouses provides a powerful way to represent, monitor, and predict these climate dynamics. A predictive digital twin can simulate future indoor climate states based on current greenhouse conditions, …


A Pilot Randomized Clinical Trial Examining The Efficacy Of Group-Based Parent-Child Interaction Therapy (Pcit) For Autistic Youth: A Mixed-Method Design, Julia L. Kiefer Jul 2026

A Pilot Randomized Clinical Trial Examining The Efficacy Of Group-Based Parent-Child Interaction Therapy (Pcit) For Autistic Youth: A Mixed-Method Design, Julia L. Kiefer

Graduate Theses and Dissertations

Caregivers of autistic children experience a myriad of barriers when seeking psychotherapy for their children including a lack of family-based treatment options, lengthy waitlists, and limited access to specialized therapists. As the demand for both accessible and affordable mental healthcare for autistic youth increases, group-based interventions may be a useful alternative to more time intensive individual treatment options – allowing for multiple clients to be seen at once. The present study examined the efficacy of an adapted evidence-based intervention, Parent-Child Interaction Therapy, to be delivered in a brief, group-based format with families of autistic youth. Driven by input from a …


Benchmarking Current Progress In 3d Content Generation, Vuong Ho Jul 2026

Benchmarking Current Progress In 3d Content Generation, Vuong Ho

Graduate Theses and Dissertations

In recent years, 3D generation has rapidly advanced with the development of powerful generative AI models capable of producing high-quality 3D content from various modalities, including text, images, and multi-view inputs. These advancements have significantly accelerated progress in applications such as gaming, virtual reality, robotics, and digital content creation. Despite this progress, there is still a lack of standardized and fair benchmarking protocols for evaluating 3D generation methods. Existing approaches are often assessed under inconsistent experimental settings, using different datasets, evaluation metrics, and processing pipelines. Such inconsistencies make reliable and objective comparisons difficult, limiting our understanding of the strengths and …


Remote Sensing-Derived Urban Heat Islands And Land Surface Phenology, Raihan Sorker Jul 2026

Remote Sensing-Derived Urban Heat Islands And Land Surface Phenology, Raihan Sorker

Graduate Theses and Dissertations

Thermal remote sensing has been widely applied to characterize urban heat islands (UHI) and their relationship to land use; however, few studies have explored the relationship between land surface temperature (LST) and land surface phenology (LSP). This study focused on the relationship between LST and LSP in the metropolitan region of Kansas City, Missouri, USA using Landsat 8 satellite images from 2015 to 2024. Thermal and normalized difference vegetation index (NDVI) time series were processed using Google Earth Engine to derive annual LST metrics alongside phenological indicators including timing of green-up and senescence as well as growing season length. Individually, …


Localizing And Repairing Backdoor-Sensitive Layers In Pre-Trained Language Models For Secure Fine-Tuning, Sunanda Das Jul 2026

Localizing And Repairing Backdoor-Sensitive Layers In Pre-Trained Language Models For Secure Fine-Tuning, Sunanda Das

Graduate Theses and Dissertations

Task-agnostic backdoor attacks can contaminate pre-trained language models (PLMs) in a way that survives downstream adaptation, even under full fine-tuning, making it difficult for practitioners to trust third-party checkpoints. Existing defenses often rely on privileged assumptions (e.g., access to poisoned data or trigger/target knowledge), thereby limiting their applicability in realistic settings. We present DiSec (Disentanglement of potentially adversarial weights for Secure fine-tuning), a robust and label-efficient purification framework that uses only clean auxiliary text and does not rely on downstream supervision or attack signatures. DiSec elicits model-internal signals from this clean data to separate suspicious parameter components that are inconsistent …


Iterative Generation Of Feature-Based Cad Models Using An Llm With Domain Specific Constraints, Ammon I. Hepworth Jul 2026

Iterative Generation Of Feature-Based Cad Models Using An Llm With Domain Specific Constraints, Ammon I. Hepworth

Graduate Theses and Dissertations

This paper presents a method to generate feature-based parametric mechanical CAD models from text input. The method uses domain-specific constraints (DSCs) to guide a large language model (LLM) in the generation of scripts to build models from the CAD API. It also presents a framework for an iterative text-based system that produces parametric CAD models. The method was implemented by developing DSCs for FreeCAD and Open AI GPT-5.2 and incorporated into a web-based software application which generates models that can be visualized with an interactive viewer after each iteration. Tests were run comparing various models with and without this method. …


Native American Speech-Language Pathologists: Voices And Perspectives, Lexi Woods Jul 2026

Native American Speech-Language Pathologists: Voices And Perspectives, Lexi Woods

Graduate Theses and Dissertations

Abstract: This narrative inquiry centers the lived experiences and professional voices of Native American speech-language pathologists (SLPs) working with students with disabilities on tribal lands, a population that remains unheard within special education and speech-language pathology research. Grounded in Indigenous epistemologies that honor relationality, storytelling, and community accountability, this study explores how Native American SLPs navigate systemic inequities, cultural and linguistic mismatches, and institutional constraints while providing services in public, tribally controlled, and Bureau of Indian Education schools. Through in-depth narratives, the research illuminates how participants resist deficit-based approaches by reframing silence, communication styles, family engagement, and disability through culturally …


Organic-Complexed Or Inorganic Trace Mineral Tub Supplementation: Impacts On Productivity And Reproductive Outcomes In Beef Cows And Heifers, Jacy Riddle Jul 2026

Organic-Complexed Or Inorganic Trace Mineral Tub Supplementation: Impacts On Productivity And Reproductive Outcomes In Beef Cows And Heifers, Jacy Riddle

Graduate Theses and Dissertations

The objective of these experiments was to investigate the effects of organic-complexed or inorganic trace minerals (copper, cobalt, manganese, and zinc) on cow reproductive performance, suckling calf growth, as well as heifer development and reproductive outcomes utilizing free-choice tub supplementation. In lactating cows, treatments consisted of molasses-based tub supplementation containing either complexed or inorganic trace minerals, with an additional pre-breeding drench administered only to cows receiving complexed minerals. The drench contained complexed or organic copper, cobalt, manganese, and zinc. Supplementation began approximately 6 weeks prior to fixed-timed artificial insemination (FTAI) and continued until bull removal (d 105). In weaned replacement …


City Context And Climate Risk Perception In Arkansas, Mohammad Mizanur Rahman Jul 2026

City Context And Climate Risk Perception In Arkansas, Mohammad Mizanur Rahman

Graduate Theses and Dissertations

Perceptions of climate change risk are shaped by both individual-level factors, such as cultural worldviews, party identification, and demographic characteristics, as well as by local environmental and contextual characteristics. This study, conducted in Arkansas, employed both individual- and city-level analyses to assess the influence of local context on variation in climate change risk perception. At the city level, measures of climate policy environment, digital infrastructure, civic and resource context, political landscape, and climate-related vulnerability were developed and compared across Arkansas cities. At the individual level, the analysis explored associations between cultural worldviews, party identification, demographic variables, and climate risk perception. …


Making Meaning In Gender Affirming Therapy: Voices Of Transgender And Gender Diverse Individuals, Shelby Freeman Jul 2026

Making Meaning In Gender Affirming Therapy: Voices Of Transgender And Gender Diverse Individuals, Shelby Freeman

Graduate Theses and Dissertations

Transgender and gender diverse (TGD) people frequently seek out counseling services and experience greater mental health difficulties than the general population. Oppressive political and social structures are often cited as a main contributor to mental health disparities. As antitransgender laws and sentiments increase in the U.S., the likelihood of mental health professionals encountering TGD clients will also increase. This requires specific competencies in how to provide effective gender-affirming mental health services. Affirming MHPs are more accessible to TGD clients now than ever due to increases in provider training and improved attitudes. However, previous research revealed that MHPs who identify as …


Valorization Of Rice Bran For Functional Film Fabrication Using Cold Plasma For Food Packaging And Biomedical Applications, Saydul Md Safwa Jul 2026

Valorization Of Rice Bran For Functional Film Fabrication Using Cold Plasma For Food Packaging And Biomedical Applications, Saydul Md Safwa

Graduate Theses and Dissertations

Abstract Over the past few years, conventional plastic packaging materials have become increasingly concerned with their environmental impact. Therefore, the demand for bioplastics has been increasing significantly over the years. Rice milling, a process that modifies paddy rice into edible rice, generates by-products such as rice bran. Rice bran has cellulose, hemicellulose, lignin, and protein, which makes it a potential material for bioplastic fabrication. However, like most biodegradable films, rice bran films fall short when it comes to practical packaging applications. They often lack the strength, flexibility, moisture resistance, and barrier performance needed to compete with synthetic plastics. Most importantly, …


Seasonality Of Bovine Respiratory Disease Incidence, Nasal Temperatures, And The Nasal Microbiome In Receiving Beef Cattle: Understanding The Risk Of The Bovine Respiratory Disease Complex, Robin Ashley Cheek Jul 2026

Seasonality Of Bovine Respiratory Disease Incidence, Nasal Temperatures, And The Nasal Microbiome In Receiving Beef Cattle: Understanding The Risk Of The Bovine Respiratory Disease Complex, Robin Ashley Cheek

Graduate Theses and Dissertations

Bovine respiratory disease (BRD) has persistently been the leading cause of morbidity of beef cattle in the United States. Season has been directly associated with respiratory disease incidence and is likely a proxy for weather conditions, which vary by geographical location. The nose is one of the first points of contact between the outside environment and inside the body. The nasal microbiome and its relationship with BRD have been heavily studied within beef cattle, but there are not yet any studies to determine if the environment within the nasal cavity has a role to play in this mechanism. This dissertation …


Soft Urea Nitridation Of Tantalum-Based Thin Films For Oxynitride Synthesis, Rishabh Srivastava Jul 2026

Soft Urea Nitridation Of Tantalum-Based Thin Films For Oxynitride Synthesis, Rishabh Srivastava

Graduate Theses and Dissertations

Rising global energy consumption and the transition toward low-carbon technologies place new demands on functional materials. Particularly, semiconductors that convert sunlight directly into chemical fuels with high efficiency and long operational lifetimes. The synthesis of visible light active tantalum oxynitride (TaON) thin films for photoelectrochemical (PEC) water splitting typically requires ammonolysis with pressurized NH3 gas, which presents persistent barriers in safety and phase selectivity. In this work, a soft urea ammonolysis route was employed in which solid urea was employed as an in-situ nitrogen source inside a vacuum-sealed reactor. The finite urea mass establishes a self-limiting nitrogen chemical potential that …


Integrated Sensing And Communication For Uavs With Oddm Waveforms, Mohammad Abdul Mobin Jul 2026

Integrated Sensing And Communication For Uavs With Oddm Waveforms, Mohammad Abdul Mobin

Graduate Theses and Dissertations

A new delay-Doppler (DD) integrated sensing and communications (ISAC) framework is proposed for unmanned aerial vehicle (UAV) systems. In the DD-ISAC framework, both sensing and communications are performed by using the orthogonal delay Doppler division multiplexing (ODDM) waveforms, which unify sensing and communication designs through their unique properties, such as local bi-orthogonality and dual-resolution in the DD domain. Specifically, the dual-resolution property enables the generation of delay-Doppler map for accurate and low complexity sensing, and the bi-orthogonality minimizes interference for both sensing and communications. The ODDM waveforms are used in combination with the phase comparison monopulse technique and a scaled …