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Evaluation Of Hydrogen Storage Potential In Depelted Hydrocarbon Formations: A Case Study Of The Middle Bakken Member In The Antelope Field, Williston Basin, North Dakota, Grace Oluwakemisola Taiwo Dec 2024

Evaluation Of Hydrogen Storage Potential In Depelted Hydrocarbon Formations: A Case Study Of The Middle Bakken Member In The Antelope Field, Williston Basin, North Dakota, Grace Oluwakemisola Taiwo

Theses and Dissertations

Hydrogen, as a low-emission fuel and energy carrier, plays a crucial role in stabilizing renewable energy variability amid global decarbonization efforts. Subsurface storage, uniquely secure against threats such as severe weather, military conflicts, fires, and acts of terrorism, is critical for large-scale hydrogen applications and addressing the intermittency of renewable resources. North Dakota, represents a classic example of a state where reliance on fossil fuels drives significant greenhouse gas emissions. The state also hosts the Bakken Formation, an important hydrocarbon formation where depleted or nearly depleted wells exacerbate environmental challenges through potential fugitive emissions. This study therefore investigates the feasibility …


Forward And Backward Private Searchable Encryption For Cloud-Assisted Industrial Iot, Tianqi Peng, Bei Gong, Shanshan Tu, Abdallah Namoun, Sami Alshmrany, Muhammad Waqas, Hisham Alasmary, Sheng Chen Dec 2024

Forward And Backward Private Searchable Encryption For Cloud-Assisted Industrial Iot, Tianqi Peng, Bei Gong, Shanshan Tu, Abdallah Namoun, Sami Alshmrany, Muhammad Waqas, Hisham Alasmary, Sheng Chen

Research outputs 2022 to 2026

In the cloud-assisted industrial Internet of Things (IIoT), since the cloud server is not always trusted, the leakage of data privacy becomes a critical problem. Dynamic symmetric searchable encryption (DSSE) allows for the secure retrieval of outsourced data stored on cloud servers while ensuring data privacy. Forward privacy and backward privacy are necessary security requirements for DSSE. However, most existing schemes either trade the server’s large storage overhead for forward privacy or trade efficiency/overhead for weak backward privacy. These schemes cannot fully meet the security requirements of cloud-assisted IIoT systems. We propose a fast and firmly secure SSE scheme called …


Meeting Aerobic Physical Activity Guidelines And Associations With Physical Fitness In Men With Metastatic Prostate Cancer: Baseline Results Of The Multicentre Interval-Gap4 Trial, Lisa Umlauff, Stacey A. Kenfield, Robert U. Newton, Nicolas H. Hart, Fred Saad, Kerry S. Courneya, Rosemary Greenwood, Wilhelm Bloch, Moritz Schumann Dec 2024

Meeting Aerobic Physical Activity Guidelines And Associations With Physical Fitness In Men With Metastatic Prostate Cancer: Baseline Results Of The Multicentre Interval-Gap4 Trial, Lisa Umlauff, Stacey A. Kenfield, Robert U. Newton, Nicolas H. Hart, Fred Saad, Kerry S. Courneya, Rosemary Greenwood, Wilhelm Bloch, Moritz Schumann

Research outputs 2022 to 2026

Background: This study compared the physical activity level of men with metastatic prostate cancer at baseline of the multicentre INTERVAL-GAP4 trial to the American Cancer Society guidelines and examined associations with physical fitness. Methods: A total of 140 men on androgen deprivation therapy (ADT) were included in this cross-sectional analysis of baseline data from the INTERVAL-GAP4 trial. Exclusion criteria included a maximum of 1 h of vigorous aerobic exercise or one structured resistance exercise session per week but no restrictions on habitual physical activity. Moderate-to-vigorous physical activity (MVPA) was assessed using a modified Godin–Shephard Leisure-Time Physical Activity Questionnaire. Physical fitness …


Phypo: Priority-Based Hybrid Task Partitioning And Offloading In Mobile Computing Using Automated Machine Learning, Shehr Bano, Ghulam Abbas, Muhammad Bilal, Ziaul Haq Abbas, Zaiwar Ali, Muhammad Waqas Dec 2024

Phypo: Priority-Based Hybrid Task Partitioning And Offloading In Mobile Computing Using Automated Machine Learning, Shehr Bano, Ghulam Abbas, Muhammad Bilal, Ziaul Haq Abbas, Zaiwar Ali, Muhammad Waqas

Research outputs 2022 to 2026

With the increasing demand for mobile computing, the requirement for intelligent resource management has also increased. Cloud computing lessens the energy consumption of user equipment, but it increases the latency of the system. Whereas edge computing reduces the latency along with the energy consumption, it has limited resources and cannot process bigger tasks. To resolve these issues, a Priority-based Hybrid task Partitioning and Offloading (PHyPO) scheme is introduced in this paper, which prioritizes the tasks with high time sensitivity and offloads them intelligently. It also calculates the optimal number of partitions a task can be divided into. The utility of …


Protocol To Implement And Evaluate A Culturally Secure, Strength-Based, Equine-Assisted Learning Program, "Yawardani Jan-Ga" (Horses Helping), To Support The Social And Emotional Wellbeing Of Australian Aboriginal Children And Young People, Juli Coffin, Sharmila Vaz, Cheryl Kickett-Tucker, Helen Milroy, Craig Olsson, Meg Kirby, Lesley Nelson, Rob Mcphee, Donna Cross Dec 2024

Protocol To Implement And Evaluate A Culturally Secure, Strength-Based, Equine-Assisted Learning Program, "Yawardani Jan-Ga" (Horses Helping), To Support The Social And Emotional Wellbeing Of Australian Aboriginal Children And Young People, Juli Coffin, Sharmila Vaz, Cheryl Kickett-Tucker, Helen Milroy, Craig Olsson, Meg Kirby, Lesley Nelson, Rob Mcphee, Donna Cross

Research outputs 2022 to 2026

Australian Aboriginal people experience stressors from inequalities across crucial social determinants, including deep and entrenched disadvantage and exclusion. The impact of unaddressed historical issues is pervasive and intergenerational. The disproportionate rates of Aboriginal youth suicide, juvenile detention and imprisonment highlight the inadequacy of existing social and emotional wellbeing programs and services for Aboriginal children and young people. There is increasing recognition in Australia that aligning social and emotional wellbeing interventions with Western values and conceptions of mental health is one of the main barriers to service uptake among Aboriginal people. This suggests fundamental questions remain unanswered about what type of …


What Journalism Feels Like: Considering The Body Of The Journalist, Mark Deuze, Laura Glitsos Dec 2024

What Journalism Feels Like: Considering The Body Of The Journalist, Mark Deuze, Laura Glitsos

Research outputs 2022 to 2026

All journalists have bodies. This commonsensical fact acquires more currency every day as the work of reporters and editors becomes automated, robotized, and taken over by (generative) artificial intelligence. The embodied nature of news work matters, not in the least because of the personal attachment practitioners have to what journalism is, or should be. However, in the rich history of journalism studies, bodily perspectives are remarkably absent—beyond descriptions of journalists as sociodemographic profiles. In this essay, we explore various theoretical frameworks to bring the body back into the study and practice of journalism. In our argument, we apply the insights …


The Temperature Versus Orbital Period Relation Of Am Cvns: Insights From Their Donors, Colin W. Macrie, Liliana Rivera Sandoval, Yuri Cavecchi, Tin Long Sunny Wong, Manuel Pichardo Marcano Dec 2024

The Temperature Versus Orbital Period Relation Of Am Cvns: Insights From Their Donors, Colin W. Macrie, Liliana Rivera Sandoval, Yuri Cavecchi, Tin Long Sunny Wong, Manuel Pichardo Marcano

Physics & Astronomy Faculty Publications

We studied the spectral energy distribution of 22 known AM CVns with orbital periods (Porb) larger than 35 minutes using multiwavelength public photometric data to estimate the effective temperature of the accreting white dwarf. We find an infrared (IR) excess in all systems when compared to a single blackbody, both when the disk should be extended and when it should be truncated by the accretor's magnetic field. This suggests a dominant contribution from the donor to the IR flux. When fitting two blackbodies, the temperature of the hot component decreases with Porb, as expected by evolutionary models. …


An Examination Of The Effect Of The Implementation Of A Trauma-Informed School Initiative On The Attitudes Of The Staff In A School, Michael Riddell Dec 2024

An Examination Of The Effect Of The Implementation Of A Trauma-Informed School Initiative On The Attitudes Of The Staff In A School, Michael Riddell

Electronic Theses and Dissertations

The purpose of this qualitative phenomenological case study was to investigate the change in the attitudes of teachers pre and post implementation of a trauma-informed school initiative in a school in the Eastern Grand Region of Tennessee. As adverse childhood experiences (ACEs) have become more recognizable in school age children by teachers and school staff members due to an increase in knowledge about ACEs, there has been an increase in the number of trauma-informed initiatives undertaken by schools across the United States. Due to the challenges associated with the implementation of trauma-informed initiatives in schools, it is important for administrators …


General Sport Skills Performance Following The Combined Use Of Accentuated Eccentric Loading And Cluster Sets During A Strength-Endurance Training Phase, David Nelson Dec 2024

General Sport Skills Performance Following The Combined Use Of Accentuated Eccentric Loading And Cluster Sets During A Strength-Endurance Training Phase, David Nelson

Electronic Theses and Dissertations

The purpose of this study aimed to evaluate the efficacy of resistance training with accentuated eccentric loading (AEL) and cluster sets (CS) versus traditional resistance training (TRAD) on general sports skills and power performance in recreationally trained individuals. Seventeen subjects (11 males, 6 females; mean age 23.2 ± 4.1 years; body mass 81.3 ± 22.2 kg; height 172.1 ± 10.0 cm; relative 1 RM back squat 1.5 ± 0.3) were randomly assigned to AEL (n = 9) or TRAD (n = 8) groups. After an initial familiarization and baseline testing, both groups underwent a four-week strength-endurance training regimen. The AEL …


Comparison Of The Effect Of Heavy Pulls Vs Light Powers On A Subsequent Clean In Trained Athletes, Luke Devirgiliis Dec 2024

Comparison Of The Effect Of Heavy Pulls Vs Light Powers On A Subsequent Clean In Trained Athletes, Luke Devirgiliis

Electronic Theses and Dissertations

The sport of weightlifting has been competed since the first modern Olympiad. Competition in weightlifting consists of 3 attempts the snatch and clean and jerk declared by the athlete and their coach prior to the starting of the lift. While waiting for the athlete’s lift, waiting periods can change and warm up attempts may need to be adjusted. Often, coaches prescribe either a complete “light power” or partial “heavy pull” repetition of the competed movement during a long wait. Previous literature indicates that a heavier stimulus may cause a “post-activation potentiation”, or “post-activation performance enhancement” effect on the subsequent lift. …


Perceiving, Processing, And Evaluating Infant Facial Affect In Potential Parents: An Erp Study, Tiffany Bonnagio Dec 2024

Perceiving, Processing, And Evaluating Infant Facial Affect In Potential Parents: An Erp Study, Tiffany Bonnagio

Electronic Theses and Dissertations

Evidence for differences between assigned female at birth (AFAB) and assigned male at birth (AMAB) perceiving, processing, and evaluating infant faces has been mixed. The current study examined whether expected parental self-efficacy (EPSE) and desire for children predicts event-related potentials (ERPs) to infant facial affect in potential parents. No scale for EPSE exists. Therefore, we reworded the Perceived Maternal Parental Self-Efficacy scale from present to future tense. There was no correlation with EPSE scores, ERPs, or behavioral data. No difference was found between AFAB and AMAB in accurately evaluating infant faces; however, AFABs responded more quickly. ERP data revealed significantly …


Overcoming The Barrier To The Clinical Application Of Naloxone: Application Of Drug Delivery Technologies, Akeemat O. Tijani Dec 2024

Overcoming The Barrier To The Clinical Application Of Naloxone: Application Of Drug Delivery Technologies, Akeemat O. Tijani

Electronic Theses and Dissertations

Opioid overdose crisis continues to demand innovative solutions for rapid and effective drug administration. Naloxone (NAL), a critical opioid antagonist, has been the primary treatment for reversing opioid-induced respiratory depression. However, its current delivery methods, such as intravenous and intranasal formulations, are limited by their invasive nature, short half-life, and the need for repeated dosing. This dissertation investigates advanced drug delivery technologies aimed at overcoming these challenges and enhancing the clinical utility of NAL.

This research focused on improving the transdermal and transnasal delivery of NAL using minimally invasive techniques. Various approaches were evaluated, including sonophoresis, microneedles, laser ablation, dermaplaning …


Service Provider Perceptions Of Systems Serving Individuals Experiencing Homelessness: A Needs Assessment And Strategic Plan In Johnson City, Tn, Opal Frye-Clark Dec 2024

Service Provider Perceptions Of Systems Serving Individuals Experiencing Homelessness: A Needs Assessment And Strategic Plan In Johnson City, Tn, Opal Frye-Clark

Electronic Theses and Dissertations

This Integrated Learning Experience (ILE) investigates service providers' perceptions of Johnson City, Tennessee's homelessness services, aiming to inform a city-wide strategic plan for reduction. Employing a mixed-methods approach, the study gathered qualitative data through in-depth interviews with service providers in 2022 and quantitative data via a 2024 survey. The research focused on those directly involved in serving or significantly influencing the lives of individuals experiencing homelessness (IEH). Three key aims guided the investigation: (1) To analyze provider perspectives to identify community assets, opportunities, barriers, and unmet needs, informing a comprehensive needs assessment; (2) To refine these findings through SWOT analysis …


Shared Genetic Architecture Of Non-Viral Cirrhosis With Several Pleiotropic Traits: A Nested Case-Control Study In The Uk Biobank, Aaron P Thrift, Sabrina M Lin, Xiangjun Xiao, Hyeyeun Lim, Goo Jun, Stacia M Desantis, Hashem B El-Serag, Fasiha Kanwal, Christopher I Amos Dec 2024

Shared Genetic Architecture Of Non-Viral Cirrhosis With Several Pleiotropic Traits: A Nested Case-Control Study In The Uk Biobank, Aaron P Thrift, Sabrina M Lin, Xiangjun Xiao, Hyeyeun Lim, Goo Jun, Stacia M Desantis, Hashem B El-Serag, Fasiha Kanwal, Christopher I Amos

Faculty, Staff and Students Publications

Background & aims: Cirrhosis is a leading cause of liver-related mortality and a multifactorial disease. To date, the complex genetic architecture of non-viral cirrhosis has not been fully explored. Cross-trait genetic correlations can elucidate the common genetic etiology of genetically correlated phenotypes. This study aims to identify polygenic and pleiotropic traits associated with cirrhosis using the linkage disequilibrium score regression analysis.

Methods: We conducted genome-wide association analysis of 9,622,842 imputed SNPs on 3,368 non-viral cirrhosis cases and 258,258 controls, and cross-trait analysis between non-viral cirrhosis and various polygenic and pleiotropic traits using the UK Biobank cohort study. We further performed …


Implementation Of A Transition-Of-Care Model For Adult Ischemic Stroke Survivors, Megan Akacsos Dec 2024

Implementation Of A Transition-Of-Care Model For Adult Ischemic Stroke Survivors, Megan Akacsos

Electronic Theses and Dissertations

The lasting physical and cognitive deficits associated with the complexities of newly acquired

disabilities resulting from an acute ischemic stroke (AIS) may lead to hospital readmissions. The

participating healthcare facility on the U.S. West Coast reported a hospital readmission rate for

AIS survivors of 24.29% within 30 days of discharge. This doctoral nursing project aimed to

determine if implementing the Comprehensive Post-Acute Stroke Services (COMPASS) model

would reduce 30-day readmission rates compared to no standardized transition-of-care model in

adult AIS survivors over 30 days. Implementing the COMPASS model in this patient population

was expected to better educate and support stroke …


Organizational Toxicity: Exploring Factors That Cultivate Toxicity In Air Force Maintenance Organizations And Their Impact On Enlisted Airmen, Bryan Keith Wong Dec 2024

Organizational Toxicity: Exploring Factors That Cultivate Toxicity In Air Force Maintenance Organizations And Their Impact On Enlisted Airmen, Bryan Keith Wong

Electronic Theses and Dissertations

Workplace toxicity negatively impacts organizations and harms employees within those organizations. However, each organization is subject to various influences and contexts, and understanding toxicity within specific contexts provides practitioners with the knowledge of its origin, influential factors, and how to respond. The U.S. Air Force is rich in culture and subcultures; it is also subject to toxicity, which is affected by several military-unique factors. Yet, toxicity in the military has been primarily explored through the leadership lens with limited insights into other influential elements, such as followers and the workplace environment. Additionally, little attention has been placed on the effects …


Foster Youth Experiencing Homelessness In Texas: An Analysis Of Risk And Protective Factors That Impact Housing Stability, Monique Willoughby Dec 2024

Foster Youth Experiencing Homelessness In Texas: An Analysis Of Risk And Protective Factors That Impact Housing Stability, Monique Willoughby

Electronic Theses and Dissertations

While research on youth homelessness continues to grow, not much is known about the differences that exist between states. To address specific concerns effectively, a more nuanced and granular approach to assessment is needed. Specifically, Texas youth who are transitioning from foster and other systems of care into young adulthood and more independent living will need tailored support to adequately address their needs. This study is a step in that direction. Through identification of risks factors that predict homelessness for these youth, social workers, counselors, case managers, and other human services providers and advocates can better assess, plan, and intervene …


Mechanical Stability Of Body-Centered Cubic Iron At Earth's Core Pressure And Temperature Conditions Using A Molecular Graph Kernel Regression And Gaussian Process., Blaise Awola Ayirizia Dec 2024

Mechanical Stability Of Body-Centered Cubic Iron At Earth's Core Pressure And Temperature Conditions Using A Molecular Graph Kernel Regression And Gaussian Process., Blaise Awola Ayirizia

Open Access Theses & Dissertations

We used machine learning to study nonmagnetic BCC iron in conditions similar to thosefound in the Earthâ??s core. Our model predicts the stability of BCC iron at high temperatures and pressures by analyzing a dataset from ab initio molecular dynamics simulations. The framework uses Gaussian process regression to make predictions by comparing the similarity between molecules. This comparison is made using the marginalized graph kernel. To use the marginalized graph kernel, the framework applies a spatial adjacency rule to convert molecules into graphs, where the vertices and edges are labeled by elements and interatomic distances, respectively. We can use this …


D-Optimal Joint Best Linear Unbiased Predictors In Progressively Type-Ii Ordered Statistics, Tamim Alam Dec 2024

D-Optimal Joint Best Linear Unbiased Predictors In Progressively Type-Ii Ordered Statistics, Tamim Alam

Open Access Theses & Dissertations

Reliability and life-testing experiments play a crucial role in understanding the longevity and performance of systems and components, particularly in high-stakes applications such as engineering, manufacturing, and quality control. In this thesis, we focus on the prediction of future unobserved failure times by employing joint predictors based on progressively Type-II censored data obtained from such life-testing experiments. Specifically, we derive explicit analytical expressions for the joint best linear unbiased predictors (BLUPs) of two future order statistics under the D-optimality criterion. The derivation involves minimizing the determinant of the variance-covariance matrix of the predictors within the context of progressively Type-II censored …


The Journey And Lived Experience Of Dropout, Hispanic, Teen Fathers, Patricia Ann Cuevas Dec 2024

The Journey And Lived Experience Of Dropout, Hispanic, Teen Fathers, Patricia Ann Cuevas

Open Access Theses & Dissertations

The dropout phenomenon in the United States is an ongoing concern, especially regarding teen fathers. The purpose of this qualitative phenological study was to examine how Hispanic men who fathered a child as adolescent understood and made sense of their lived experiences of dropping out of high school and later returning to their studies. Semi-structured interviews were utilized to gather the data. An analysis of the findings was conducted, revealing the themes of emotional distress, expectations, hard lessons, and the impact of fatherhood. The themes were then applied to the theorical framework of Sensemaking. The results revealed that the participants …


Microwave-Assisted Pyrolysis Of Hydrocarbons Using Iron-Based Alumina Catalysts Obtained Via Solution Combustion Synthesis, Zachary Aidan Chanoi Dec 2024

Microwave-Assisted Pyrolysis Of Hydrocarbons Using Iron-Based Alumina Catalysts Obtained Via Solution Combustion Synthesis, Zachary Aidan Chanoi

Open Access Theses & Dissertations

The demand for hydrogen is growing which makes the development of clean and efficient H2 synthesis technologies imperative. Microwave-assisted, thermocatalytic, dehydrogenation of hydrocarbons has demonstrated the ability to generate H2 with high yield/selectivity and leaving behind valuable solid carbon byproducts. However, this microwave-assisted process is unoptimized which prevents it from being utilized in industry. A critical component of optimization is the development of a catalyst that is catalytically active, a good microwave absorber, and can be regenerated for repeated dehydrogenation cycles. Previous studies that focused on plastic waste decomposition have used iron-based alumina (FeAlxOy) made via solution combustion synthesis (SCS). …


Geotechnical Aspects Of Extraterrestrial Regolith Simulants, Jesus Baca Dec 2024

Geotechnical Aspects Of Extraterrestrial Regolith Simulants, Jesus Baca

Open Access Theses & Dissertations

Geotechnical engineering has been crucial to the success of construction projects on Earth, and now it is time to extend this expertise to other celestial bodies. As NASA planned the Apollo missions, geotechnical engineers conducted extensive studies to understand the properties of lunar soil, using analogs like volcanic ash and other terrestrial materials to simulate the moon's surface. Nevertheless, it was not until the inception of the year 1968 that the Surveyor landers were able to give the first actual estimates of the moon soil geotechnical characteristics such as bearing capacity, void ratio, etc. With the development of more refined …


Accessibility And Usability Of Medical Devices For Users With Disabilities: Insights From A Bibliometric And Thematic Analysis, Karen Daniela Gonzalez Silva Dec 2024

Accessibility And Usability Of Medical Devices For Users With Disabilities: Insights From A Bibliometric And Thematic Analysis, Karen Daniela Gonzalez Silva

Open Access Theses & Dissertations

No abstract provided.


Integrating Responsible And Ethical Conduct Of Research Into Cures: A Longitudinal Study Observing Professional Development Of Fellows Within The Ethics Network For Course-Based Opportunities In Undergraduate Research, Aimee Angelica Hernandez-Gaytan Dec 2024

Integrating Responsible And Ethical Conduct Of Research Into Cures: A Longitudinal Study Observing Professional Development Of Fellows Within The Ethics Network For Course-Based Opportunities In Undergraduate Research, Aimee Angelica Hernandez-Gaytan

Open Access Theses & Dissertations

No abstract provided.


Thermal Inequity Along The Us-Mexico Border: An Analysis Of El Paso, Texas, Mia Alexandra Trevino Dec 2024

Thermal Inequity Along The Us-Mexico Border: An Analysis Of El Paso, Texas, Mia Alexandra Trevino

Open Access Theses & Dissertations

The Urban Heat Island effect (UHI) combined with rising average global temperatures invariably results in thermal inequality, the unequal distribution of temperature patterns by different socioeconomic and sociodemographic groups, resulting in an array of negative public health impacts. This thesis research focused on the historical factors that contribute to UHI and tree cover in historically underserved neighborhoods in El Paso, Texas. The impact of maps from 1933-1954 created by the Home Ownerâ??s Loan Corporation (HOLC), a federal selective lending program, resulted in decades of disinvestment and inequality especially in redlined areas. Geospatial analyses of environmental and socioeconomic indicators such as …


Enhancing The Utility Of Unmanned Autonomous Vehicles (Uavs) With Model-Based Systems Engineering (Mbse) And Modular Open Systems Approach (Mosa), Aimee Barraza Dec 2024

Enhancing The Utility Of Unmanned Autonomous Vehicles (Uavs) With Model-Based Systems Engineering (Mbse) And Modular Open Systems Approach (Mosa), Aimee Barraza

Open Access Theses & Dissertations

Unmanned Autonomous Vehicles (UAVs) have emerged as versatile tools with significant implications across various industries, particularly in defense. The technological advancements in UAVs have revolutionized military operations, surveillance, and reconnaissance capabilities. However, there exist challenges such as environmental factors affecting sensor and flight performance, limited battery life restricting flight durations, and payload capacity constraints impeding task efficiency.This paper delves into the importance of UAVs in different industries, specifically focusing on their pivotal role in the Department of Defense. It emphasizes the necessity of technological upgrades to overcome current challenges and proposes the adoption of a Modular and Open System Approach …


Optimization And Purification Of Magnesium Borides Fabricated By Combustion Synthesis And By High-Temperature Sintering, Miguel Joaquin Camarena Dec 2024

Optimization And Purification Of Magnesium Borides Fabricated By Combustion Synthesis And By High-Temperature Sintering, Miguel Joaquin Camarena

Open Access Theses & Dissertations

Hydrogen as a fuel provides several benefits over the use of fossil fuels; however, one challenge in utilizing hydrogen as an energy carrier revolves around its storage. Achieving sufficient volumetric hydrogen density in a storage solution will facilitate hydrogenâ??s adoption for use in both stationary and mobile applications. Solid-state hydrogen storage provides a promising pathway to solving this problem. However, the hydrogenation of these materials is characterized by slow kinetics and extreme thermodynamic conditions. Magnesium borohydride (Mg(BH4)2) is a promising material in hydrogen storage due to its reversible properties and a theoretical hydrogen capacity of 14.9 wt.%. To synthesize this …


Functionalized Carbon Quantum Dots: A Promising Nanomaterial For Investigating Their Potential In Neurodegenerative Disease Treatment, Sherin M. El Morsy Dec 2024

Functionalized Carbon Quantum Dots: A Promising Nanomaterial For Investigating Their Potential In Neurodegenerative Disease Treatment, Sherin M. El Morsy

Open Access Theses & Dissertations

Neurodegenerative diseases such as Parkinson's Disease (PD), Alzheimer's Disease (AD), and Huntington's Disease (HD) remain incurable, despite extensive research into therapeutic development. In the United States of America, the annual cost of PD and AD in terms of patient care and lost productivity is approximately $200 billion. Consequently, there is a critical and unaddressed need for the development of innovative drugs and drug delivery systems that can decelerate, stop, or ideally reverse neurodegenerative diseases. The dissertation presented here focuses on devising strategies to target PD through multiple mechanisms, including the inhibition of protein aggregation and the reduction of oxidative stress. …


Synthesis Of Materials For Additive Manufacturing Of Enhanced Polymers And Textured Ceramics, Diana Fontes Dec 2024

Synthesis Of Materials For Additive Manufacturing Of Enhanced Polymers And Textured Ceramics, Diana Fontes

Open Access Theses & Dissertations

This research will be divided into two sections. The first section investigates the development of textured Barium Titanate (BaTiO3) ceramics fabricated through Direct Ink Write Printing (DIW) integrated with Templated Grain Growth (TGG). This approach aims to develop lead-free piezoelectric materials with grain alignment during printing process to promote high piezoelectric performance comparable to those in lead-based ceramics. This research evaluates the impact of the DIW-TGG process on grain orientation, material densification, and piezoelectric response, illustrating its potential for developing high-performance ceramics for advanced applications such as sensors, actuators, and other piezoelectric devices. The second project explores the chemical stability …


Redefining Approaches For Measuring Landscape Subsidence And Permafrost Degradation In Arctic Tundra Environments, Tabatha Lynn Fuson Dec 2024

Redefining Approaches For Measuring Landscape Subsidence And Permafrost Degradation In Arctic Tundra Environments, Tabatha Lynn Fuson

Open Access Theses & Dissertations

As climate change accelerates in the Arctic, the degradation of permafrost is leading to significant landscape transformation in tundra landscapes. This dissertation investigates the multifaceted responses of permafrost systems to warming, focusing on the dynamics of surface elevation changes and active layer thickness (ALT) across the North Slope of Alaska. In this study, I explore the capacity of repeat Terrestrial Laser Scanning (TLS) technology for modeling tundra features and detecting surface subsidence, specifically how different climate and landscape conditions during scanning impact TLS model precision. We also compare TLS model precision estimates to TLS model accuracy by comparing elevation values …