Digital Commons Network^™

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 …

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

Episode 23: Taylor Matthew Ashley, Christina Torres

Futures in Languages Transcripts

No abstract provided.

Staff Council Financial Statement December 2022, Staff Council

Staff Advisory Council Treasurer Reports

No abstract provided.

Episode 22: Courtney Jorgensen, Christina Torres

Futures in Languages Transcripts

No abstract provided.

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 …

Meeting Minutes 11-16-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Meeting Minutes 11-16-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Episode 21: Karen Ochoa, Christina Torres

Futures in Languages Transcripts

No abstract provided.

Textbook Affordability + Wordpress + Dc Api = Unique Etextbook Portal Collaboration, Lee Dotson, Bobby Ciullo, Lily Dubach, Kerri Bottorff

Faculty Scholarship and Creative Works

As part of a textbook affordability initiative, the University of Central Florida Libraries sought ways to inform students that hundreds of required textbooks are available for free as library eTextbooks. When other methods did not include necessary information such as a link to the eTextbook or other details, a secondary method was investigated: creating an eTextbook Portal. An eTextbook Portal serves as a searchable webpage to help students locate eTextbooks that match their courses. A collaboration between the institutional repository, textbook affordability, and web services produced this creative solution to organize and share information for each eTextbook using Digital Commons …

Episode 20: Anne Prucha, Christina Torres

Futures in Languages Transcripts

No abstract provided.

Laws Of Hammurabi, Martha T. Roth

Open Educational Resources for the Ancient Near East

Critical translation of the Laws of Hammurabi, c. 1750 BCE

Staff Council Financial Statement November 2022, Staff Council

Staff Advisory Council Treasurer Reports

No abstract provided.

World Series, Richard C. Crepeau

On Sport and Society

The last few weeks has offered some very good and exciting baseball. The new format of the playoffs has not noticeably damaged the playoff process. As in the case of most playoffs, some good teams are eliminated; some very hot teams move forward; and some very good teams advance. This is generally the case in most playoff schemes in most sports. A short series, five to seven games, does not always reward the best team. The Philadelphia Phillies, the hot team, and the Houston Astros, the very good team, have advanced to the World Series. It looks like a very …

Episode 19: Virginia Perwin, Christina Torres

Futures in Languages Transcripts

No abstract provided.

Episode 18: Abby Reynolds, Christina Torres

Futures in Languages Transcripts

No abstract provided.

Meeting Minutes 10-19-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Meeting Minutes 10-19-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Episode 17: Isabella Castro, Christina Torres

Futures in Languages Transcripts

No abstract provided.

Episode 32: Gulnora Hundley ’04ma ’08phd: Destigmatizing Mental Health, Improving Education For Professionals, University Of Central Florida

Knights Do That Podcast Transcripts

Season three of Knights Do That, UCF’s official podcast, returns with its fifth guest, double Knight Gulnora Hundley ’04MA ’08PhD, an associate lecturer in UCF’s Department of Counselor Education and School Psychology. As an Uzbekistan native who speaks Russian and is a mental health counselor with nearly 40 years of experience, Hundley has stepped up to provide free teletherapy sessions to Ukrainian mental health professionals since Russia’s invasion of the region. The immigrant and former international student knows first-hand how culture can impact differences in approaches to and understanding of mental health.

Here Hundley shares how the importance of …

Overdosing On Sports, Richard C. Crepeau

On Sport and Society

We have arrived at that moment in the U.S. sports calendar when there is a high risk of overdosing. The NFL has started its season; college football is already deep into its schedule; the NHL starts regular season play next week; the NBA is less than two weeks away from opening night; and, baseball has begun its playoff march to the World Series. And, this is just the major sports.

Orange County, Fl Substance Use Disorder Treatment Gap Analysis, Amy Donley Phd, Caroline Austin, Jacquelyn Reiss

Institute for Social and Behavioral Science (ISBS)

The University of Central Florida's Institute for Social and Behavioral Science (ISBS) partnered with the Orange County Drug-Free Office to undertake a gap analysis focused on substance use disorder treatment. Specifically, we designed a study to determine the capacity of treatment options, identify barriers to seeking treatment, and illuminate what works particularly well. The gap analysis results can guide future decisions on allocating resources best to ensure that treatment is accessible to all in need.

Meeting Minutes 09-21-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Meeting Minutes 09-21-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Meeting Minutes 09-21-2022, Staff Advisory Council

Staff Advisory Council Meeting Documents

No abstract provided.

Tennis In Transition, Richard C. Crepeau

On Sport and Society

Over the past few months, I have written this column only a few times, the last being late July. This has not been because I have had nothing to comment upon. Rather the summer has been filled with travel, some to escape the heat of Florida. Over the past few days, I have been trying to decide how to restart. Many topics have shot by over the past three months, any number of which could now be subjects for this column. Not the least of these are the passing of two giants of contemporary American sport: Bill Russell in basketball …