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Title: Optimization and design of photovoltaic micro-inverter.
Creator: Zhang, Qian, Batarseh, Issa, Shen, Zheng, Wu, Xinzhang, Lotfifard, Saeed, Kutkut, Nasser, University of Central Florida
Abstract / Description: To relieve energy shortage and environmental pollution issues, renewable energy, especially PV energy has developed rapidly in the last decade. The micro-inverter systems, with advantages in dedicated PV power harvest, flexible system size, simple installation, and enhanced safety characteristics are the future development trend of the PV power generation systems. The double-stage structure which can realize high efficiency with nice regulated sinusoidal waveforms is the mainstream for the...
Show moreTo relieve energy shortage and environmental pollution issues, renewable energy, especially PV energy has developed rapidly in the last decade. The micro-inverter systems, with advantages in dedicated PV power harvest, flexible system size, simple installation, and enhanced safety characteristics are the future development trend of the PV power generation systems. The double-stage structure which can realize high efficiency with nice regulated sinusoidal waveforms is the mainstream for the micro-inverter.This thesis studied a double stage micro-inverter system. Considering the intermittent nature of PV power, a PFC was analyzed to provide additional electrical power to the system. When the solar power is less than the load required, PFC can drag power from the utility grid.In the double stage micro-inverter, the DC/DC stage was realized by a LLC converter, which could realize soft switching automatically under frequency modulation. However it has a complicated relationship between voltage gain and load. Thus conventional variable step P(&)O MPPT techniques for PWM converter were no longer suitable for the LLC converter. To solve this problem, a novel MPPT was proposed to track MPP efficiently. Simulation and experimental results verified the effectiveness of the proposed MPPT.The DC/AC stage of the micro-inverter was realized by a BCM inverter. With duty cycle and frequency modulation, ZVS was achieved through controlling the inductor current bi-directional in every switching cycle. This technique required no additional resonant components and could be employed for low power applications on conventional full-bridge and half-bridge inverter topologies. Three different current mode control schemes were derived from the basic theory of the proposed technique. They were referred to as Boundary Current Mode (BCM), Variable Hysteresis Current Mode (VHCM), and Constant Hysteresis Current Mode (CHCM) individually in this paper with their advantages and disadvantages analyzed in detail. Simulation and experimental results demonstrated the feasibilities of the proposed soft-switching technique with the digital control schemes.The PFC converter was applied by a single stage biflyback topology, which combined the advantages of single stage PFC and flyback topology together, with further advantages in low intermediate bus voltage and current stresses. A digital controller without current sampling requirement was proposed based on the specific topology. To reduce the voltage spike caused by the leakage inductor, a novel snubber cell combining soft switching technique with snubber technique together was proposed. Simulation and experimental waveforms illustrated the same as characteristics as the theoretical analysis.In summary, the dissertation analyzed each power stage of photovoltaic micro-inverter system from efficiency and effectiveness optimization perspectives. Moreover their advantages were compared carefully with existed topologies and control techniques. Simulation and experiment results were provided to support the theoretical analysis.
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Date Issued: 2013
Identifier: CFE0005286, ucf:50540
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005286

Title: A Blue Flower: The Development of a Personal Documentary.
Creator: Taranger, Nils, Mills, Lisa, Stoeckl, Ula, Sandler, Barry, University of Central Florida
Abstract / Description: A Blue Flower is a feature-length documentary film by Nils Taranger, made as part of the requirements for earning a Master of Fine Arts in Entrepreneurial Digital Cinema from the University of Central Florida. The film focuses on the director's journey to find healing, both physically and emotionally.Following the guidelines of UCF's program, Nils produced the film on a microbudget (under $50,000) level. The majority of filming took place in Florida with only a one or two person crew. This...
Show moreA Blue Flower is a feature-length documentary film by Nils Taranger, made as part of the requirements for earning a Master of Fine Arts in Entrepreneurial Digital Cinema from the University of Central Florida. The film focuses on the director's journey to find healing, both physically and emotionally.Following the guidelines of UCF's program, Nils produced the film on a microbudget (under $50,000) level. The majority of filming took place in Florida with only a one or two person crew. This thesis is a record of the film's progression from development to picture lock, in preparation for distribution.
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Date Issued: 2012
Identifier: CFE0004607, ucf:49915
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004607

Title: THE DEVELOPMENT OF LOOP-BASED CINEMATIC TECHNIQUES IN TWENTIETH CENTURY MOTION PICTURES AND THEIR APPLICATION IN EARLY DIGITAL CINEMA.
Creator: Scoma, David, Scott, Blake, University of Central Florida
Abstract / Description: For centuries, repetition in one form or another has been seen as a significant element in the artistic palette. In numerous formats of expression, duplication and looping became a significant tool utilized by artisans in a multitude of creative formats. Yet within the realm of film, the Griffith and Eisenstein models of cinematic editing techniques (as the most popular-- and near-monolithic--narrative aesthetic criteria) effectively disregarded most other approaches, including looping....
Show moreFor centuries, repetition in one form or another has been seen as a significant element in the artistic palette. In numerous formats of expression, duplication and looping became a significant tool utilized by artisans in a multitude of creative formats. Yet within the realm of film, the Griffith and Eisenstein models of cinematic editing techniques (as the most popular-- and near-monolithic--narrative aesthetic criteria) effectively disregarded most other approaches, including looping. Despite the evidence for the consistent use of repetition and looping in multiple ways throughout the course of cinematic history, some theorists and practitioners maintain that the influx of the technique within digital cinema in recent years represents a sudden breakthrough, one that has arrived simply because technology has currently advanced to a point where their utilization within digital formats now makes sense both technologically and aesthetically. This situation points to a cyclical problem. Students of film and video frequently are not taught aesthetical or editorial options other than standard industry procedures. Those who are interested in varying techniques are therefore put in the position of having to learn alternative practices on their own. When they do look beyond visual norms to try applying different approaches in their projects, they risk going against the views of their instructors who are only interested in implementations of the standard methods which have been in the forefront for so long. Yet the loop's importance and prevalence as a digital language tool will only likely grow with the evolution of digital cinema. With this is mind, the dissertation addresses the following questions: To what extent can various forms of repetitive visuals be found throughout film history, and are not simply technical manifestations that have merely emerged within digital cinema? How might current educational practices in the realm of film and video work to inform students of techniques outside of the common narrative means? Finally, what other sources or strategies might be available to enlighten students and practitioners exploring both the history surrounding--and possible applications of--techniques based upon early cinema practices such as the loop?
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Date Issued: 2008
Identifier: CFE0002464, ucf:47720
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002464

Title: Video categorization using semantics and semiotics.
Creator: Rasheed, Zeeshan, Shah, Mubarak, Engineering and Computer Science
Abstract / Description: University of Central Florida College of Engineering Thesis; There is a great need to automatically segment, categorize, and annotate video data, and to develop efficient tools for browsing and searching. We believe that the categorization of videos can be achieved by exploring the concepts and meanings of the videos. This task requires bridging the gap between low-level content and high-level concepts (or semantics). Once a relationship is established between the low-level computable...
Show moreUniversity of Central Florida College of Engineering Thesis; There is a great need to automatically segment, categorize, and annotate video data, and to develop efficient tools for browsing and searching. We believe that the categorization of videos can be achieved by exploring the concepts and meanings of the videos. This task requires bridging the gap between low-level content and high-level concepts (or semantics). Once a relationship is established between the low-level computable features of the video and its semantics, .the user would be able to navigate through videos through the use of concepts and ideas (for example, a user could extract only those scenes in an action film that actually contain fights) rat her than sequentially browsing the whole video. However, this relationship must follow the norms of human perception and abide by the rules that are most often followed by the creators (directors) of these videos. These rules are called film grammar in video production literature. Like any natural language, this grammar has several dialects, but it has been acknowledged to be universal. Therefore, the knowledge of film grammar can be exploited effectively for the understanding of films. To interpret an idea using the grammar, we need to first understand the symbols, as in natural languages, and second, understand the rules of combination of these symbols to represent concepts. In order to develop algorithms that exploit this film grammar, it is necessary to relate the symbols of the grammar to computable video features.
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Date Issued: 2003
Identifier: CFR0001717, ucf:52920
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFR0001717

Title: Digital Citizenship Tools for Cause-Based Campaigns: A Broadened Spectrum of Social Media Engagement and Participation-Scale Methodology.
Creator: Miller, Jennifer, Vie, Stephanie, Scott, Blake, Flammia, Madelyn, St. Amant, Kirk, University of Central Florida
Abstract / Description: Digital Citizenship Tools for Cause-Based Campaigns: A Broadened Spectrum of Social Media Engagement and Participation-Scale Methodology develops and applies two new tools for understanding, measuring, and recursively adjusting small to medium-size social media-based philanthropic campaigns to better foster participation and engagement(-)in other words, democratic digital citizenship. First, a theoretical model is offered broadening current binary conceptions of success and failure or impact...
Show moreDigital Citizenship Tools for Cause-Based Campaigns: A Broadened Spectrum of Social Media Engagement and Participation-Scale Methodology develops and applies two new tools for understanding, measuring, and recursively adjusting small to medium-size social media-based philanthropic campaigns to better foster participation and engagement(-)in other words, democratic digital citizenship. First, a theoretical model is offered broadening current binary conceptions of success and failure or impact of campaigns, situating specific participant actions in social media on a spectrum. Then, from that model, a new methodology is provided to measure participation and engagement generated by campaign posts. Recommendations are also offered for recursively adjusting campaign posts to better foster democratic digital citizenship. These tools were developed from data generated by #TheFaceOffChallenge, a research project representative of a typical small to medium-size cause-based campaign. #TheFaceOffChallenge also serves as a sample for analysis illustrating how to use these tools. While explicating these tools, this dissertation explores a broad range of topics related to better understanding democratic digital citizenship: online philanthropy, awareness, and digital activism; viral and memetic transmission; tensions between consumption and creation of ideas, content, and knowledge; public(s), counterpublics, and counter-efforts; literacies and access for engagement and participation in algorithmic environments; and visual communication and semiotics.
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Date Issued: 2018
Identifier: CFE0007227, ucf:52214
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007227

Title: Effects of a Reading Strategy with Digital Social Studies Texts for Eighth Grade Students.
Creator: Doan, Melissa, Ehren, Barbara, Little, Mary, Kent-Walsh, Jennifer, Hahs-Vaughn, Debbie, University of Central Florida
Abstract / Description: Recent data indicate that only 34% of American eighth grade students are able to demonstrate grade-level proficiency with academic reading tasks (NCES, 2011). The staggering nature of statistics such as this is even more profound when considering that high level literacy skills combined with mastery of digital texts have become practical requirements for success in secondary education, post-secondary education, and virtually all vocational contexts. Despite this incongruent scenario, little...
Show moreRecent data indicate that only 34% of American eighth grade students are able to demonstrate grade-level proficiency with academic reading tasks (NCES, 2011). The staggering nature of statistics such as this is even more profound when considering that high level literacy skills combined with mastery of digital texts have become practical requirements for success in secondary education, post-secondary education, and virtually all vocational contexts. Despite this incongruent scenario, little research has been conducted to evaluate instructional methods and reading comprehension strategies with digital texts.To address this critical issue, the present study examined the effects of a metacognitive reading comprehension instructional protocol (STRUCTURE Your Reading [SYR]; Ehren, 2008) with eighth grade students using digital texts in a standard social studies classroom in an urban American school setting. The focus of the protocol was on teaching strategies and self-questioning prompts before, during, and after reading. The study employed a randomized controlled design and consisted of three conditions with a total of 4 participating teachers and 124 participating students. The study was conducted over 25 instructional days and two instructional units with 13.83 treatment hours within the standard, social studies classes. Hierarchical ANCOVA analyses revealed that when controlling for pre-test measurements, the comparison and experimental groups performed significantly better than the control group with instructional unit test scores (Unit 2), reading strategy use in all stages of reading (before, during, and after), and self-questioning prompts during reading. Comparison and experimental groups did not significantly differ in these gains, indicating that this instructional protocol is effective with both paper and digital text. These findings suggest that the SYR instructional protocol is effective with secondary students in content area classrooms when using digital text. Furthermore, they suggest that metacognition and reading comprehension strategy instruction are able to be successfully embedded within a content area class and result in academic and metacognitive gains. Clinical implications and future research directions and are discussed.
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Date Issued: 2012
Identifier: CFE0004244, ucf:49537
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004244

Title: The Effectiveness of Project-Based Learning Using Digital Storytelling Technology on Improving Second-Grade Students' Performance of Science Standards.
Creator: Dorr, Mariella, Everett, Robert, Gresham, Gina, Ortiz, Enrique, University of Central Florida
Abstract / Description: The purpose of this study was to find the effectiveness of digital storytelling technology integration through a project-based learning approach using digital stories combined with hands-on guided inquiry science lessons. As a teacher researcher, the focus was on the effectiveness in the performance of second-grade students using higher-order thinking science standards. For a period of ten weeks, the researcher through comparative action research investigated how emergent technology...
Show moreThe purpose of this study was to find the effectiveness of digital storytelling technology integration through a project-based learning approach using digital stories combined with hands-on guided inquiry science lessons. As a teacher researcher, the focus was on the effectiveness in the performance of second-grade students using higher-order thinking science standards. For a period of ten weeks, the researcher through comparative action research investigated how emergent technology integration improved the performance of two second-grade classrooms implementing three higher-order thinking life science standards. A total of 27 students from two second-grade classrooms volunteered for this research. For the study, a pretest and posttest from Classroom A and Classroom B were utilized for the quantitative data analysis. A web-based rubric was created to assess the science digital story and student journals. The students also completed a self-assessment progression scale at the end of the study. The data collected showed an improvement in the performance of second-grade students using higher-order thinking science standards with technology integration.
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Date Issued: 2017
Identifier: CFE0006871, ucf:51753
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006871

Title: Ok, Ladies, Now Let's Get Information: Recognizing Moments of Rhetorical Identification in Beyonc(&)#233;'s Digital Activism.
Creator: Arban, Garrett, Jones, Natasha, Vie, Stephanie, Wheeler, Stephanie, University of Central Florida
Abstract / Description: This research seeks to understand how activists are encouraging audiences to identify with their work in digital spaces through a case study of Beyonc(&)#233; Knowles-Carter's activism. The current scholarship surrounding digital activism is extensive and has offered a detailed look at individual tools used in activist movements, but there is a lack of research that recognizes the complex network of tools that are often used by an activist or activist group. To address this gap in the...
Show moreThis research seeks to understand how activists are encouraging audiences to identify with their work in digital spaces through a case study of Beyonc(&)#233; Knowles-Carter's activism. The current scholarship surrounding digital activism is extensive and has offered a detailed look at individual tools used in activist movements, but there is a lack of research that recognizes the complex network of tools that are often used by an activist or activist group. To address this gap in the research, this thesis offers an analysis of three specific activist tools used by Beyonc(&)#233; to encourage her fans and other audiences to identify with and participate in her activism. This study investigates the methods Beyonc(&)#233; employs to get her multiple audiences informed and engaged through an analysis of her activist blog, the (")Formation(") music video, and her live performance during the 2016 Super Bowl halftime show. Specifically, the purpose of this study is to assess, from a rhetorical standpoint, how Beyonc(&)#233; is inviting her audiences to respond and become engaged.The analysis of these three activist tools utilizes qualitative data analysis, focusing on Burke's (1969) concept of rhetorical identification to understand how her activist messages are presented across mediums. To expand on the findings of this analysis, a reception study on Beyonc(&)#233;'s (")Formation(") music video and 2016 Super Bowl performance was conducted to gauge the success of her rhetorical methods. The findings of this study recognize the need to continue looking at the multiple tools used by activists to understand the complexity of their rhetorical work online. This study also provides methods for analyzing the intertextual nature of digital activism so that further research can be done. While this study begins to address the gap in the current scholarship, more research needs to be done to study the current rhetorical practices of digital activists.
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Date Issued: 2017
Identifier: CFE0006557, ucf:51344
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006557

Title: DIGITAL INTERACTIVE GAMES FOR ASSESSMENT: A STUDY OF THE EFFECTIVENESS OF A DIGITAL GAME AS A MEASURE OF STUDENTS' UNDERSTANDING OF BOOLEAN LOGIC.
Creator: Haji Mohammad Ali Sabbagh, Shabnam, Moshell, Jack, Underberg, Natalie, Lindgren, Robb, University of Central Florida
Abstract / Description: Digital games have been used mostly for entertainment but recently researchers have started to use digital games in other areas such as education and training. Researchers have shown that digital games can provide a compelling, creative, and collaborative environment for learning. However, the popularity of computers and the Internet brings this question to mind: Are the assessment methods falling behind and remaining traditional? Will the traditional methods of learning and knowledge...
Show moreDigital games have been used mostly for entertainment but recently researchers have started to use digital games in other areas such as education and training. Researchers have shown that digital games can provide a compelling, creative, and collaborative environment for learning. However, the popularity of computers and the Internet brings this question to mind: Are the assessment methods falling behind and remaining traditional? Will the traditional methods of learning and knowledge assessment be sufficient for this new generation who are starving for new technology?This study investigates the effectiveness of using a digital interactive game as an assessments method (-) in this case a mini-game that was designed to assess the student's knowledge on basic Boolean logic. The study reports on the performance differences of the students who participated in this study and correlations between the performance of these students in a digital interactive game, written tests and their in-class performance to examine the effectiveness of using a digital game as a new knowledge assessment method.
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Date Issued: 2014
Identifier: CFE0005343, ucf:50494
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005343

Title: The Response of American Police Agencies to Digital Evidence.
Creator: Yesilyurt, Hamdi, Wan, Thomas, Potter, Roberto, Applegate, Brandon, Lang, Sheau-Dong, University of Central Florida
Abstract / Description: Little is known about the variation in digital forensics practice in the United States as adopted by large local police agencies. This study investigated how environmental constraints, contextual factors, organizational complexity, and organizational control relate to the adoption of digital forensics practice. This study integrated 3 theoretical perspectives in organizational studies to guide the analysis of the relations: institutional theory, contingency theory, and adoption-of-innovation...
Show moreLittle is known about the variation in digital forensics practice in the United States as adopted by large local police agencies. This study investigated how environmental constraints, contextual factors, organizational complexity, and organizational control relate to the adoption of digital forensics practice. This study integrated 3 theoretical perspectives in organizational studies to guide the analysis of the relations: institutional theory, contingency theory, and adoption-of-innovation theory. Institutional theory was used to analyze the impact of environmental constraints on the adoption of innovation, and contingency theory was used to examine the impacts of organizational control on the adoption of innovation. Adoption of innovation theory was employed to describe the degree to which digital forensics practice has been adopted by large municipal police agencies having 100 or more sworn police officers.The data set was assembled primarily by using Law Enforcement Management and Administrative Statistics (LEMAS) 2003 and 1999. Dr. Edward Maguire`s survey was used to obtain 1 variable. The joining up of the data set to construct the sample resulted in 345 large local police agencies. The descriptive results on the degree of adoption of digital forensics practice indicate that 37.7% of large local police agencies have dedicated personnel to address digital evidence, 32.8% of police agencies address digital evidence but do not have dedicated personnel, and only 24.3% of police agencies have a specialized unit with full-time personnel to address digital evidence. About 5% of local police agencies do nothing to address digital evidence in any circumstance. These descriptive statistics indicate that digital evidence is a matter of concern for most large local police agencies and that they respond to varying degrees to digital evidence at the organizational level. Agencies that have not adopted digital forensics practice are in the minority. The structural equation model was used to test the hypothesized relations, easing the rigorous analysis of relations between latent constructs and several indicator variables. Environmental constraints have the largest impact on the adoption of innovation, exerting a positive influence. No statistically significant relation was found between organizational control and adoption of digital forensic practice. Contextual factors (task scope and personnel size) positively influence the adoption of digital forensics. Structural control factors, including administrative weight and formalization, have no significant influence on the adoption of innovation. The conclusions of the study are as follows. Police agencies adopt digital forensics practice primarily by relying on environmental constraints. Police agencies exposed to higher environmental constraints are more frequently expected to adopt digital forensics practice. Because organizational control of police agencies is not significantly related to digital forensics practice adoption, police agencies do not take their organizational control extensively into consideration when they consider adopting digital forensics practice. The positive influence of task scope and size on digital forensics practice adoption was expected. The extent of task scope and the number of personnel indicate a higher capacity for police agencies to adopt digital forensics practice. Administrative weight and formalization do not influence the adoption of digital forensics practice. Therefore, structural control and coordination are not important for large local police agencies to adopt digital forensics practice.The results of the study indicate that the adoption of digital forensics practice is based primarily on environmental constraints. Therefore, more drastic impacts on digital forensics practice should be expected from local police agencies' environments than from internal organizational factors. Researchers investigating the influence of various factors on the adoption of digital forensics practice should further examine environmental variables. The unexpected results concerning the impact of administrative weight and formalization should be researched with broader considerations.
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Date Issued: 2011
Identifier: CFE0004181, ucf:49081
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004181

Title: An Analysis of the Readiness and Confidence of High School Administrators to Provide Instructional Leadership in Digital School Environments.
Creator: Shepherd, Andrew, Taylor, Rosemarye, Doherty, Walter, Johnson, Jerry, Border, Harold, University of Central Florida
Abstract / Description: The purpose of this study was to analyze the perceived knowledge and confidence of high school administrators to lead in a digital school environment. This study utilized an exploratory mixed-methods case study analysis along with the 62-item Digital Instructional Leadership Readiness Instrument (DILRI)(&)copy; to measure school administrators' knowledge and confidence to lead in a digital school environment. High school administrators within the target school district were requested to...
Show moreThe purpose of this study was to analyze the perceived knowledge and confidence of high school administrators to lead in a digital school environment. This study utilized an exploratory mixed-methods case study analysis along with the 62-item Digital Instructional Leadership Readiness Instrument (DILRI)(&)copy; to measure school administrators' knowledge and confidence to lead in a digital school environment. High school administrators within the target school district were requested to complete the DILRI(&)copy; at two separate points in time: September 2016 and June 2017. Based on these two administrations, this study's six Research Questions were answered. Research Questions 1, 2, 3, 4, and 6 were addressed quantitatively using descriptive statistics, along with two MANOVA analyses for Research Question 6. Research Question 5 was answered qualitatively by examining open-ended responses found within the DILRI(&)copy;. Based on the data collected, Experience Supervising Others and Colleagues were two factors ranked highest by administrators as influencing their knowledge and confidence. Additionally, high school administrators perceive themselves to be knowledge and confident in recognizing Student Engagement and Student Collaboration, and in developing digital school culture factors of Leadership Teams, Empowering Teachers, and Shared Vision. Overall means increased for knowledge and confidence on each scale between the September 2016 and June 2017 DILRI(&)copy; administrations. Much research relating to the digital school environment has only focused on the preparation required of teachers; therefore, this study provides administrators, directors, school boards, superintendents, and other school district leaders with relevant information relating to the self-reported readiness of high school administrators to lead in a digital school environment.
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Date Issued: 2017
Identifier: CFE0007295, ucf:52173
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007295

Title: COMPUTER TECHNOLOGYIN THE DESIGN PROCESS.
Creator: Montague, Gregory, Scott, Bert, University of Central Florida
Abstract / Description: This is a study of computer technologyÃ‚Â's impact on the theatrical design process. The tools of communication provided by technology were studied, and an analysis was conducted in the classroom of Digital Rendering, Digital Rendering Videos, and 3d CADD. After-wards, these tools were applied to an actual production of West Side Story where, with the addition of 3d light simulation software, the tools were used to communicate the design ideas from the lighting designer...
Show moreThis is a study of computer technologyÃ‚Â's impact on the theatrical design process. The tools of communication provided by technology were studied, and an analysis was conducted in the classroom of Digital Rendering, Digital Rendering Videos, and 3d CADD. After-wards, these tools were applied to an actual production of West Side Story where, with the addition of 3d light simulation software, the tools were used to communicate the design ideas from the lighting designer to the director. The goal of this process was to provide a Ã‚Â"real to lifeÃ‚Â" virtual representation of the show to the director with the least amount of confusion. An additional goal was to test the limits and functions of the software; trying to learn all the benefits that could be provided to the process of mounting a theatrical production.
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Date Issued: 2010
Identifier: CFE0003032, ucf:48365
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003032

Title: Creating a Digital Exhibit on the Colonial Fur Trade in Florida: A Public History / Digital History Project.
Creator: DiBiase, Benjamin, Cassanello, Robert, Beiler, Rosalind, French, Scot, University of Central Florida
Abstract / Description: This thesis project incorporates podcasts and high resolution digital imagery visualizations into a single online exhibit to democratize archival material on the web. It employs contemporary new museology and digital history methodological frameworks, and utilizes the burgeoning medium of podcasting to increase public understanding and interaction with an historical period. For this project I have partnered with the Florida Historical Society and have utilized original materials from their...
Show moreThis thesis project incorporates podcasts and high resolution digital imagery visualizations into a single online exhibit to democratize archival material on the web. It employs contemporary new museology and digital history methodological frameworks, and utilizes the burgeoning medium of podcasting to increase public understanding and interaction with an historical period. For this project I have partnered with the Florida Historical Society and have utilized original materials from their collection relating to the colonial fur trade in Florida. The study of the North American fur trade has recently expanded to include more information about the indigenous societies engaged in the trade through closer examination of primary source documents, and this digital exhibit, hosted by the Florida Historical Society, created a series of module entities to achieve that end. The exhibit consists of three sections, each exploring a different aspect of the traditional discourse surrounding the colonial American fur trade in Florida, including the voices of indigenous populations and their agency in trade negotiations. Each podcast has aired as part of the Florida Historical Society's weekly radio magazine, Florida Frontiers, which is broadcast throughout the state, and is archived on the Society's website. The exhibit enhances the scholarly discussion on public history and digital history, while utilizing new media such as podcasts and interactive digital maps to create a more immersive user experience with primary source material to answer questions concerning the colonial fur trade in Florida. The project has combined new mediums of historical interpretation with traditional museum methodology and historical analysis to create a multi-faceted, unique digital experience on the web.
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Date Issued: 2017
Identifier: CFE0006734, ucf:51868
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006734

Title: Digital Dissonance: Horror Cultures in the Age of Convergent Technologies.
Creator: Powell, Daniel, McDaniel, Rudy, Campbell, James, Brenckle, Martha, Arnzen, Michael, University of Central Florida
Abstract / Description: The first two decades of the new millennium have witnessed an abundance of change in the areas of textual production, digital communication, and our collective engagement with the Internet. This study explores these changes, which have yielded both positive and negative cultural and developmental outcomes, as products of digital dissonance. Dissonance is characterized by the disruptive consequences inherent in technology's incursion into the print publication cultures of the twentieth century...
Show moreThe first two decades of the new millennium have witnessed an abundance of change in the areas of textual production, digital communication, and our collective engagement with the Internet. This study explores these changes, which have yielded both positive and negative cultural and developmental outcomes, as products of digital dissonance. Dissonance is characterized by the disruptive consequences inherent in technology's incursion into the print publication cultures of the twentieth century, the explosion in social-media interaction that is changing the complexion of human contact, and our expanding reliance on the World Wide Web for negotiating commerce, culture, and communication.This study explores digital dissonance through the prism of an emerging literary subgenre called technohorror. Artists working in the area of technohorror are creating works that leverage the qualities of plausibility, mundanity, and surprise to tell important stories about how technology is altering the human experience in the twenty-first century. This study explores such subjects as paradigmatic changes in textual production methods, dynamic authorial hybridity, digital materiality in folklore studies, posthumanism, transhumanism, cognitive diminution, and physical degeneration as explored in works of technohorror.The work's rhetorical architecture includes elements of both theoretical and qualitative research. This project expands on City University of New York philosophy professor No(&)#235;l Carroll's definition of art-horror in developing a formal explanation of technohorror and then exploring that literary subgenre through the analysis of a series of contemporary texts and industry-related trends. The study also contains original interviews with active scholars, artists, editors, and librarians in the horror field to gain a variety of perspectives on these complicated subjects.
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Date Issued: 2017
Identifier: CFE0006642, ucf:51231
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006642

Title: Arrangement of Google Search Results and Imperial Ideology: Searching for Benghazi, Libya.
Creator: Stewart, Jacob, Pigg, Stacey, Rounsaville, Angela, Walls, Douglas, University of Central Florida
Abstract / Description: This project responds to an ongoing discussion in scholarship that identifies and analyzes the ideological functions of computer interfaces. In 1994, Cynthia Selfe and Richard Selfe claimed that interfaces are maps of cultural information and are therefore ideological (485). For Selfe and Selfe and other scholars, these interfaces carried a colonial ideology that resulted in Western dominance over other cultures. Since this early scholarship, our perspectives on interface have shifted with...
Show moreThis project responds to an ongoing discussion in scholarship that identifies and analyzes the ideological functions of computer interfaces. In 1994, Cynthia Selfe and Richard Selfe claimed that interfaces are maps of cultural information and are therefore ideological (485). For Selfe and Selfe and other scholars, these interfaces carried a colonial ideology that resulted in Western dominance over other cultures. Since this early scholarship, our perspectives on interface have shifted with changing technology; interfaces can no longer be treated as having persistent and predictable characteristics like texts. I argue that interfaces are interactions among dynamic information that is constantly being updated online. One of the most prominent ways users interact with information online is through the use of search engines such as Google. Interfaces like Google assist users in navigating dynamic cultural information. How this information is arranged in a Google search event has a profound impact on what meaning we make surrounding the search term.In this project, I argue that colonial ideologies are upheld in several Google search events for the term (")Benghazi, Libya.(") I claim that networked connection during Google search events leads to the creation and sustainment of a colonial ideology through patterns of arrangement. Finally, I offer a methodology for understanding how ideologies are created when search events occur. This methodology searches for patterns in connected information in order to understand how they create an ideological lens.
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Date Issued: 2014
Identifier: CFE0005267, ucf:50559
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005267

Title: ANISOTROPY EVOLUTION DUE TO SURFACE TREATMENT ON 3D-PRINTED FUSED DEPOSITION MODELING (FDM) OF ACRYLONITRILE BUTADIENE STYRENE (ABS).
Creator: Lozinski, Blake E, Kassab, Alain, University of Central Florida
Abstract / Description: Purpose: This paper will present insight to the methodology and results of the experimental characterization of Acrylonitrile Butadiene Styrene (ABS) using Fused Deposition Modeling (FDM). The work in this research explored the effects of print orientation, surface treatment, and ultraviolet (UV) light degradation with the utilization of Digital Image Correlation (DIC) on ABS tensile specimens. Design/methodology: ABS specimens were printed at three build orientations (flat (0 degrees), 45...
Show morePurpose: This paper will present insight to the methodology and results of the experimental characterization of Acrylonitrile Butadiene Styrene (ABS) using Fused Deposition Modeling (FDM). The work in this research explored the effects of print orientation, surface treatment, and ultraviolet (UV) light degradation with the utilization of Digital Image Correlation (DIC) on ABS tensile specimens. Design/methodology: ABS specimens were printed at three build orientations (flat (0 degrees), 45 degrees, and up-right (90 degrees)). Each of these specimens were treated with three different surface treatments including a control (acrylic paint, Cyanoacrylate, and Diglycidyl Bisphenol A) followed by exposure to UV light to the respective batches. This experiment design will provide tensile direction properties with the effect of thermoset coatings and UV degradation. Dogbone FDM specimens based on ASTM standard D638 type IV were printed on a Stratasys Dimension SST (Soluble Support Technology) 1200es 3D Printer and loaded into a MTS Landmark Servohydraulic Test Systems. Analysis was preformed on the fracture section of the tensile specimens utilized DIC and comparing Ultimate Tensile Strength (UTS) and Ultimate Fracture Strength (UFS). Findings: From the results UV light did not play a large factor in the strength of the specimens. The print orientation showed the largest anisotropic behavior where some specimens experienced as much as a 54% difference in ultimate tensile strength. Thermoset coated specimens experienced a maximum of 2% increase in strength for the Cyanoacrylate and Diglycidyl Bisphenol A specimens where the acrylic paint and natural did not. Several findings were of value when looking at the stress strain plots. Originality/value: This paper provides knowledge to the limited work on print build orientation, thermoset coatings and, UV light on ABS specimens. Very little to no work has been done on these three properties. This paper can serve as the foundation of future work on external applications on ABS plastics.
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Date Issued: 2017
Identifier: CFH2000269, ucf:45825
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000269

Title: FORMALIZATION OF INPUT AND OUTPUT IN MODERN OPERATING SYSTEMS: THE HADLEY MODEL.
Creator: Gerber, Matthew, Leeson, John, University of Central Florida
Abstract / Description: We present the Hadley model, a formal descriptive model of input and output for modern computer operating systems. Our model is intentionally inspired by the Open Systems Interconnection model of networking; I/O as a process is defined as a set of translations between a set of computer-sensible forms, or layers, of information. To illustrate an initial application domain, we discuss the utility of the Hadley model and a potential associated I/O system as a tool for digital forensic...
Show moreWe present the Hadley model, a formal descriptive model of input and output for modern computer operating systems. Our model is intentionally inspired by the Open Systems Interconnection model of networking; I/O as a process is defined as a set of translations between a set of computer-sensible forms, or layers, of information. To illustrate an initial application domain, we discuss the utility of the Hadley model and a potential associated I/O system as a tool for digital forensic investigators. To illustrate practical uses of the Hadley model we present the Hadley Specification Language, an essentially functional language designed to allow the translations that comprise I/O to be written in a concise format allowing for relatively easy verifiability. To further illustrate the utility of the language we present a read/write Microsoft DOS FAT12 and read-only Linux ext2 file system specification written in the new format. We prove the correctness of the read-only side of these descriptions. We present test results from operation of our HSL-driven system both in user mode on stored disk images and as part of a Linux kernel module allowing file systems to be read. We conclude by discussing future directions for the research.
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Date Issued: 2005
Identifier: CFE0000392, ucf:46339
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000392

Title: MANY TELLING MOMENTS:THE ESSENCE OF FRAGMENTED IMAGE CULTURE.
Creator: Ebner, Bonnie, Haxton, David, University of Central Florida
Abstract / Description: My purpose in entering the UCF MFA program was to further explore and develop my passion for photography. During my time in the program, I developed my methodology--from having the traditional photography paradigm ingrained in my mind (and wanting to fit into it) to accepting and valuing my own unique process. I construct installations using diverse imagery and non-traditional presentation. In my installations, one may witness a reflection of the contemporary pace of image perception-...
Show moreMy purpose in entering the UCF MFA program was to further explore and develop my passion for photography. During my time in the program, I developed my methodology--from having the traditional photography paradigm ingrained in my mind (and wanting to fit into it) to accepting and valuing my own unique process. I construct installations using diverse imagery and non-traditional presentation. In my installations, one may witness a reflection of the contemporary pace of image perception--fragmented, complex, abundant, and disordered. Together, images and their arrangements are used to create a unified piece that satisfies a new system within apparent disorder. The resulting installations summon the sensation of thinking and processing information in a new way, allowing for re-contextualization of fragmented imagery. Technology has pushed photography to evolve. Previously held traditional notions of photography as art (e.g., "single telling moment" photographs and similar subject matter) are now being confronted by a vernacular of "many telling moments". The current state of the art world is in flux, and is greatly influenced by the faster pace set by technology; I coin our new vernacular Image Culture.
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Date Issued: 2008
Identifier: CFE0002116, ucf:47561
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002116

Title: INTEGRATED TOPOLOGIES AND DIGITAL CONTROL FOR SATELLITE POWER MANAGEMENT AND DISTRIBUTION SYSTEMS.
Creator: Al-Atrash, Hussam, Batarseh, Issa, University of Central Florida
Abstract / Description: This work is focused on exploring advanced solutions for space power management and distribution (PMAD) systems. As spacecraft power requirements continue to increase, paralleled by the pressures for reducing cost and overall system weight, power electronics engineers will continue to face major redesigns of the space power systems in order to meet such challenges. Front-end PMAD systems, used to interface the solar sources and battery backup to the distribution bus, need to be designed with...
Show moreThis work is focused on exploring advanced solutions for space power management and distribution (PMAD) systems. As spacecraft power requirements continue to increase, paralleled by the pressures for reducing cost and overall system weight, power electronics engineers will continue to face major redesigns of the space power systems in order to meet such challenges. Front-end PMAD systems, used to interface the solar sources and battery backup to the distribution bus, need to be designed with increased efficiency, reliability, and power density. A new family of integrated single-stage power converter structures is introduced here. This family allows the interface and control of multiple power sources and storage devices in order to optimize utilization of available resources. Employing single-stage power topologies, these converters control power flow efficiently and cost-effectively. This is achieved by modifying the operation and control strategies of isolated soft-switched half-bridge and full-bridge converters--two of the most popular two-port converter topologies. These topologies are reconfigured and utilized to realize three power processing paths. These paths simultaneously utilize the power devices, allowing increased functionality while promising reduced losses and enhanced power densities. Each of the proposed topologies is capable of performing simultaneous control of two of its three ports. Control objectives include battery or ultra-capacitor charge regulation, solar array maximum power point tracking (MPPT), and/or bus voltage regulation. Another advantage of the proposed power structure is that current engineering design concepts can be used to optimize the new topologies in a fashion similar to the mother topologies. This includes component selection and magnetic design procedures, as well as achieving soft-switching for increased efficiency at higher switching frequencies. Galvanic isolation of the load port through high-frequency transformers provides design flexibility for high step-up/step-down conversion ratios. It further allows the converters to be used as power electronics building blocks (PEBB) with outputs connected in different series/parallel combinations to meet different load requirements. Utilizing such converters promises significant savings in size, weight, and costs of the power management system as well as the devices it manages. Chapter 1 of this dissertation provides an introduction to the requirements, challenges, and trends of space PMAD. A review of existing multi-port converter technologies and digital control techniques is given in Chapter 2. Chapter 3 discusses different PMAD system architectures. It outlines the basic concepts used for PMAD integration and discusses the potential for improvement. Chapters 4 and 5 present and discuss the operation and characteristics of three different integrated multi-port converters. Chapter 6 presents improved methods for practical digital control of switching converters, which are especially useful in complex multi-objective controllers used for PMAD. This is followed by conclusions and suggested future work.
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Date Issued: 2007
Identifier: CFE0001784, ucf:47283
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001784

Title: DISCUSSION ON EFFECTIVE RESTORATION OF ORAL SPEECH USING VOICE CONVERSION TECHNIQUES BASED ON GAUSSIAN MIXTURE MODELING.
Creator: Alverio, Gustavo, Mikhael, Wasfy, University of Central Florida
Abstract / Description: Today's world consists of many ways to communicate information. One of the most effective ways to communicate is through the use of speech. Unfortunately many lose the ability to converse. This in turn leads to a large negative psychological impact. In addition, skills such as lecturing and singing must now be restored via other methods. The usage of text-to-speech synthesis has been a popular resolution of restoring the capability to use oral speech. Text to speech synthesizers convert...
Show moreToday's world consists of many ways to communicate information. One of the most effective ways to communicate is through the use of speech. Unfortunately many lose the ability to converse. This in turn leads to a large negative psychological impact. In addition, skills such as lecturing and singing must now be restored via other methods. The usage of text-to-speech synthesis has been a popular resolution of restoring the capability to use oral speech. Text to speech synthesizers convert text into speech. Although text to speech systems are useful, they only allow for few default voice selections that do not represent that of the user. In order to achieve total restoration, voice conversion must be introduced. Voice conversion is a method that adjusts a source voice to sound like a target voice. Voice conversion consists of a training and converting process. The training process is conducted by composing a speech corpus to be spoken by both source and target voice. The speech corpus should encompass a variety of speech sounds. Once training is finished, the conversion function is employed to transform the source voice into the target voice. Effectively, voice conversion allows for a speaker to sound like any other person. Therefore, voice conversion can be applied to alter the voice output of a text to speech system to produce the target voice. The thesis investigates how one approach, specifically the usage of voice conversion using Gaussian mixture modeling, can be applied to alter the voice output of a text to speech synthesis system. Researchers found that acceptable results can be obtained from using these methods. Although voice conversion and text to speech synthesis are effective in restoring voice, a sample of the speaker before voice loss must be used during the training process. Therefore it is vital that voice samples are made to combat voice loss.
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Date Issued: 2007
Identifier: CFE0001793, ucf:47286
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001793

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