Digital Commons Network^™

High Voltage Aqueous Electrolyte Based Structural Supercapacitors For Electric Vehicles, Deepak Pandey

Electronic Theses and Dissertations, 2020-2023

The current electric vehicles (EVs) face many challenges like limited charge capacity, low miles/charge, and long charging times. Herein, these issues are addressed by developing "energized composite," which is a multifunctional supercapacitor-based energy-storing carbon fiber reinforced polymer composite that can store supplemental electric energy and function as the body shell of EV's. This is achieved by developing a unique design, vertically aligning graphene sheets on carbon fiber electrodes and depositing metal oxides to obtain high energy density electrodes. A high-strength multilayer composite is fabricated using an alternate layer pattern configuration of epoxy and polyacrylamide gel electrolyte. The composite so developed …

Adaptive Analytic Continuation For The State Transition Tensors Of The Two-Body Problem, Tahsinul Haque Tasif

Electronic Theses and Dissertations, 2020-2023

In the past few decades, Kessler syndrome (named after Donald J. Kessler) has become a point of concern in the field of Space Situational Awareness and the future of space missions. It refers to a scenario, where space debris in Earth's orbits collides and creates an exponential increase in space debris numbers leading to more collisions and more debris. In order to handle the resulting challenges like conjunction analysis, tracking, and probability of collisions, the State Transition Matrix (STM) and Tensors (STTs) of the orbit problem play a significant role. In addition, STM and STTs are ubiquitous in spaceflight dynamics, …

Processing And Characterization Of Ultra High Temperature And High Conductive Composites, Haonan Song

Electronic Theses and Dissertations, 2020-2023

There are significant challenges for materials in extreme environments for a variety of applications such as aircraft engines, gas turbines, nuclear reactors, re-entry vehicles, and hypersonic structures. Ceramic matrix composites (CMCs) could be ideal candidates to meet these stringent requirements for materials due to their high melting temperatures, high oxidation, corrosion and ablation resistance, low creep, and thermal cycling behavior in such extreme environments. Particularly, continuous fibers can bridge cracks in CMCs and therefore improve the strength and fracture toughness of composites. Metal matrix ceramics are important materials in various industries, such as aerospace and automobile. MMCs have excellent mechanical …

Progress In Chaos: Cash Transfers And Women Economic Empowerment Amidst Climate Change And Violent Conflicts In West Africa, Jennifer Obado Joel

Electronic Theses and Dissertations, 2020-2023

Do cash transfers shift gender norms of economic relations within households and communities during crises? This study explores the effect of social protection programs like cash transfers on women's economic empowerment in contexts where climate change and violent conflicts co-occur. Cash transfers have become a policy of choice for governments and development agencies seeking to alleviate poverty, address economic and political grievances, and build individual and community resilience to climate change. Due to the recent popularity of cash transfers, there needs to be more scholarship on its effect on women's intra-household economic agency and voice in communities. Therefore, this study …

Extracellular Vesicle-Associated Biomolecules As Potential Biomarkers For Alzheimer's Disease Diagnosis, Lina Bedoya Martinez

Electronic Theses and Dissertations, 2020-2023

Alzheimer's disease (AD) involves progressive neurodegeneration leading to the loss of normal neuronal function. Extracellular accumulation of amyloid-beta (Aß), through the abnormal cleavage of the amyloid precursor protein (APP) by ß- and γ-secretases, is one of the hallmarks of AD. Current research focuses on finding potential candidates for biomarkers and techniques with improved sensitivity for early disease detection. Extracellular vesicles (EVs) found in body fluids are a source of biomarkers for AD diagnosis. EVs transport pathologically significant biomolecules, like nucleic acids and proteins, across the blood-brain barrier, mediating local and distant cell-to-cell communication. Therefore, this study evaluated EV-associated DNA and …

Polyelectrolyte Functionalized Forward Osmosis For Water Reclamation From Synthetic Spacecraft Wastewater, Alina Ripp

Electronic Theses and Dissertations, 2020-2023

This study investigated the application of a polyelectrolyte (PE)-assisted metallic iron nanoparticle-integrated forward osmosis (FO) membrane to treat synthetic spacecraft wastewater comprising urea, ammonium carbonate, and linear alkylbenzene sulfonate (LAS). The draw solution (MgSO4) diluted via the FO operation was further treated using a nanofiltration (NF) membrane aimed at producing potable quality water by the FO-NF hybrid process. A cellulose triacetate FO membrane was functionalized by layer-by-layer deposition of polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) followed by incorporating zero valent iron nanoparticles (ZVINP) within the "bilayers". It required 14 bilayers to ensure a uniform coating as demonstrated via scanning …

Observation Of Novel Phases Of Quantum Matter Beyond Topological Insulator, Sabin Regmi

Electronic Theses and Dissertations, 2020-2023

Because of the unique electronic properties, intriguing novel phenomena, and potentiality in quantum device applications, the quantum materials with non-trivial band structures have enticed a bulk of research works over the last two decades. The experimental discovery of the three-dimensional topological insulators (TIs) - bulk insulators with surface conduction via spin-polarized electrons - kicked off the flurry of research interests towards such materials, which resulted in the experimental discovery of new topological phases of matter beyond TIs. The topological semimetallic phase in Dirac, Weyl, and nodal-line semimetals is an example, where the classification depends on the dimensionality, degeneracy, and symmetry …

The Facile Preparation Of Bis(Imino)Pyridine Complexes Via Mechanochemistry And Inorganic Synthons Via Benign Reductants, Thomas Shaw

Electronic Theses and Dissertations, 2020-2023

This thesis is comprised of two key themes: (i) leveraging mechanochemical synthetic methods for the green preparation of bis(imino)pyridine ligands and associated first row transition metal coordination complexes, and (ii) the preparation and characterization of both historic and novel mid-valent inorganic synthons via the use of dimethylphenylsilane as a stoichiometric reducing agent. The first portion of this thesis highlights the utilization of solvent-free vibratory ball-milling in lieu of traditional, solvent-based refluxes. A variety of both bis(imino)pyridine ligands and complexes were formed in drastically reduced timeframes with solvent-economical work-up procedures. This methodology was also leveraged for the isolation of acetyl(imino)pyridine ligands …

Multi-Plane Light Conversion: Devices And Applications, Yuanhang Zhang

Electronic Theses and Dissertations, 2020-2023

Multi-plane light conversion (MPLC) has recently been developed as a versatile tool for manipulating spatial distributions of the optical field through repeated phase modulations. An MPLC Device consists of a series of phase masks separated by free-space propagation. It can convert one orthogonal set of beams into another orthogonal set through unitary transformation, which is useful for a number of applications. In telecommunication, for example, mode-division multiplexing (MDM) is a promising technology that will enable continued scaling of capacity by employing spatial modes of a single fiber. MPLC has shown great potential in MDM devices with ultra-wide bandwidth, low insertion …

Data Dimensionality Reduction Techniques: What Works With Machine Learning Models, Yuting Chen

Electronic Theses and Dissertations, 2020-2023

High-dimensional data has a wide range of applications in research, such as education, health, social media, and many other research fields. However, the high dimensionality of data can raise many problems for data analyses. This study focuses on commonly used techniques of dimensionality reduction for machine learning models, which play an essential and inevitable role in data prepossessing and statistical analysis. The main issues of high-dimensional data for machine learning tasks include the accuracy of data classification and visualization in machine learning models. Therefore, in this study, machine learning algorithms are used to predict and classify datasets to evaluate the …

Distributed Detection In Energy Harvesting Wireless Sensor Networks, Ghazaleh Ardeshiri

Electronic Theses and Dissertations, 2020-2023

A conventional wireless sensor networks (WSN), consisting of sensors powered by nonrechargeable batteries, has a strictly limited lifetime. Energy harvesting (EH) from the environment is a promising solution to address the energy constraint problem in conventional WSNs, and to render these networks to self-sustainable networks with perpetual lifetimes. In EH-powered WSNs, where sensors are capable of harvesting and storing energy, power control is necessary to balance the rates of energy harvesting and energy consumption for data transmission. In addition, wireless communication channels change randomly in time due to fading. These together prompt the need for developing new power control strategies …

Advanced Deep Learning Methodologies For Deepfake Detection, Aminollah Khormali

Electronic Theses and Dissertations, 2020-2023

The recent advances in the field of Artificial Intelligence (AI), particularly Generative Adversarial Networks (GANs) and an abundance of training samples along with robust computational resources have significantly propelled the field of AI-generated fake information in all kinds, e.g., deepfakes. Deepfakes are among the most sinister types of misinformation, posing large-scale and severe security and privacy risks targeting critical governmental institutions and ordinary people across the world. The fact that deepfakes are AI-generated digital content and not actual events captured by a camera implies that they still can be detected using advanced AI models. Although the deepfake detection task has …

Ceria Defect Engineering Using Thin-Films/Ald And Biological Applications, Udit Kumar

Electronic Theses and Dissertations, 2020-2023

Ceria nanostructures have been utilized for various engineering applications due to their unique defect structure, enabling them to have regenerative redox properties. The ability to shuttle between Ce3+ and Ce4+ oxidation states extends to unique properties. Defect level in ceria is usually expressed in the Ce3+/Ce4+ ratio. It can be achieved by varying the size(0 to 3D), morphologies, dopants, hetero-nanostructures, and external stimuli. However, it is still a challenge to have precise control over defect structures in the ceria lattice. The current study aims to explore the thin film deposition techniques for cerium oxide using ALD (Atomic layer deposition) and …

S9 E9: Reinvigorating Teacher Prep Programs With Dr. Eileen Glavey, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

No abstract provided.

Florida Frontiers Radio Program #491, Dr. Ben Brotemarkle, Florida Historical Society

Florida Frontiers Radio Transcripts

SEGMENTS | La Florida - The Interactive Digital Archive | 1968 Teacher's Strike | Bending Towards Justice - Ocoee Massacre Exhibit

S9 E8: Inspire Of Central Florida, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

In today’s episode, we have two special guests from Inspire of Central Florida, Nashalie Soto and Liliana Continanzi. Tune in to learn more about Inspire of Central Florida and how they provide educational, vocational, residential, and transportation services to adults with special needs in Central Florida. Their various Special Needs Adults Day Programs provide a safe environment for adults of differing abilities as they pursue independence and success in their lives and careers.

Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on …

Episode 24: Wrapping Up Season 3 And Looking Ahead To Season 4, Christina Torres

Futures in Languages Transcripts

No abstract provided.

S9 E7: Supporting Doctoral Students, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

What does obtaining a Doctoral of Philosophy (Ph. D) mean? How can we support more individuals to get a terminal degree in Special Education? Why is research so important in special education? Tune in to today's episode to hear how Drs. Lisa Dieker and Rebecca Hines tackle these questions and more!

Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on our Google Phone (407) 900- 9305, Facebook (Practical Access), Twitter (@AccessPractical), or Instagram (@Practical_Access)

Episode 23: Taylor Matthew Ashley, Christina Torres

Futures in Languages Transcripts

No abstract provided.

S9 E6: Supporting Students With Emotional Behavioral Disorder (Ebd), Rebecca Hines, Lisa Dieker

Practical Access Transcripts

In today’s episode, we talk about how to support students with Emotional Behavioral Disorders (EBD). Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on our Google Phone (407) 900- 9305, Facebook (Practical Access), Twitter (@AccessPractical), or Instagram (@Practical_Access).

Staff Council Financial Statement December 2022, Staff Council

Staff Advisory Council Treasurer Reports

No abstract provided.

Ucf Libraries Programming Report, 2021-2022, Megan M. Haught, Ucf Libraries

Libraries' Documents

No abstract provided.

The Scoop, Vol. 9 Issue 9, December 2022, Health Sciences Library

Volume 9

Latest news and updates from the Health Sciences Library in our monthly newsletter for December 2022.

S9 E5: Let's Talk About Nonverbal Communication, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

In today’s episode, we talk about all Nonverbal Communication!

Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on our Google Phone (407) 900- 9305, Facebook (Practical Access), Twitter (@AccessPractical), or Instagram (@Practical_Access).

Episode 35: Christopher Clifford ’22: Find A Cure For Type 1 Diabetes, University Of Central Florida

Knights Do That Podcast Transcripts

Season three of Knights Do That, UCF’s official podcast, returns with its eighth guest, Christopher Clifford ’22, a UCF electrical engineering alum who is pursuing a Ph.D. in bioengineering at Harvard-MIT. Clifford’s research is centered around find a cure for and reducing the impact of Type 1 diabetes — a cause that’s personal to him. Before attending Harvard-MIT, he received the prestigious honor of being selected as a Gates Cambridge Scholar. However, Clifford turned it down to pursue another competitive path.

Here he shares his personal and professional insights into diabetes, finding your own version of success, and his hopes …

S9 E4: Post Pandemic Concerns, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

Studies have shown the cumulative impact of the COVID-19 pandemic in the educational setting. This impact includes learning loss but also how we interact with one another. In today's episode, Drs. Lisa Dieker and Rebecca Hines talk about post-pandemic learning concerns. Please tune in to hear some of their tips on increasing students' executive function skills and the importance of including more movement in the classroom.

Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on our Google Phone (407) 900- 9305, Facebook …

S9 E3: Co-Teaching Part 2: How To Make It Work, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

Co-taught inclusion classes can look wildly different depending on how the model is implemented, and there's no silver bullet on how it's done. In today's episode, Drs. Rebecca Hines and Lisa Dieker continue their conversation on co-teaching and share some tips on how they've collaborated successfully to help build an effective teaching partnership.

Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on our Google Phone (407) 900- 9305, Facebook (Practical Access), Twitter (@AccessPractical), or Instagram (@Practical_Access).

S9 E2: Co-Teaching Part 1, Rebecca Hines, Lisa Dieker

Practical Access Transcripts

In today’s episode, Dr. Rebecca Hines interviews Dr. Lisa Dieker about Co-Teaching. Co-teaching is a collaborative approach to instruction in which two teachers, typically a general education teacher and a special education teacher, work together to plan and implement instruction for a class that includes students with disabilities. Tune in to this episode to hear their tips on co-teaching for teachers, and administrators, and how to get buy-in from all stakeholders.

Don't forget we love to hear from our listeners! If you have any questions, feel free to reach out. We look forward to receiving your questions on our Google …

Aruba's Taxing Dilemma: Navigating Tourist Perceptions On Room Tax And Turnover Tax In Paradise, Jorge Ridderstaat, Robertico Croes, Manuel A. Rivera, Jeong-Yeol Park

Dick Pope Sr. Institute Publications

This study presents the second part of our assignment for the Aruba Tourism Authority (ATA). Our study investigated the effects of two tax proposals (a turnover tax rate increase from 6% to 7% and a room tax rate increase from 9.5% to 12.5%) on tourism demand. We used monthly time-series data on tourism arrivals from several markets, including the U.S., The Netherlands, and other markets. We also segmented the arrival data based on the accommodations used in Aruba (high-rise, low-rise, and other accommodations). We applied several procedures to prepare and test the data before applying an Autoregressive Distributed Lag model …

Episode 22: Courtney Jorgensen, Christina Torres

Futures in Languages Transcripts

No abstract provided.