Digital Commons Network^™

Video Indexing And Summarization Using Motion Activity, Kadir Askin Peker

Dissertations

In this dissertation, video-indexing techniques using low-level motion activity characteristics and their application to video summarization are presented. The MPEG-7 motion activity feature is defined as the subjective level of activity or motion in a video segment. First, a novel psychophysical and analytical framework for automatic measurement of motion activity in compliance with its subjective perception is developed. A psychophysically sound subjective ground truth for motion activity and a test-set of video clips is constructed for this purpose. A number of low-level, compressed domain motion vector based, known and novel descriptors are then described. It is shown that these descriptors …

Phase-Locked Loop, Delay-Locked Loop, And Linear Decorrelating Detector For Asynchronous Multirate Ds-Cdma System, Sok-Kyu Lee

Dissertations

The performance of phase synchronization and code tracking of a digital phase-locked loop (PLL) and delay-locked loop (DLL), respectively, is investigated in wideband asynchronous multirate DS-CDMA system. Dynamic Partial Correlation (DPC) method is proposed to evaluate the autocorrelation and its power spectrum density (PSD) of the cross-correlated terms in the presence of multirate multiple access interference (MMAI) under additive white gaussian noise (AWGN) and fading channel environments. The steady-state probability density function (PDF) and variance of the phase estimator error and code tracking jitter is evaluated by solving the first-order Fokker-Planck equation.

Among many linear multiuser detectors which decouple the …

Resource Allocation For Cdma Downlink To Achieve Maximum Throughput, Anil Bircan

Dissertations

Growing interest in cellular phones, wireless modems, instant messaging, pagers with the increasing use of the Internet in daily life indicate that wireless high speed Internet access and wireless multimedia applications are in great demand. The barrier to satisfy this demand is the provision of sufficiently high bit rates in severe wireless mobile channel conditions, for a multitude of services, each requiring different and perhaps even time-varying quality of services (QoS) that can be more demanding than the QoS required by today's voice service. New generation systems will enable provision of a multitude of services each with different QoS and …

Numerical Stimulation Of Stress-Induced Crystallization Of Injection Molded Semicrystalline Thermoplastics, Jianxin Guo

Dissertations

Injection molded semicrystalline plastic products exhibit variable morphology along their thickness directions. The processing conditions have a significant effect on the crystallinity distribution in the final parts. However, because of the lack of sound theoretical models for stress-induced crystallization kinetics in thermoplastics, simulations of the injection molding process of semicrystalline plastics with the consideration of stress-induced crystallization have been scarce.

A stress-induced crystallization model for semicrystalline plastics is proposed based on the theory that stress induced orientation of polymer chains increase the melting temperature of the plastics, and hence, the supercooling which is the driving force for crystallization. By assuming …

Empirical Model-Based Control For End Milling Process, Abdelmalak Salib

Dissertations

The main objective of this research is to develop an empirical model-based control mechanism to maintain a fine surface finish quality by maintaining on-line cutting force values. The proposed model has been developed to present the control model constraints, by varying the machining parameters to control the force output to be constant. To relate the surface finish and the cutting force in the end milling machining process, a design of experiment has been conducted to determine the effect of two different materials (aluminium and steel) and the machining parameters (feed rate, spindle speed) at a predefined depth of cut.

Regression …

Nonlinear Optical Properties Of Nano Structures, Mahesh U. Ajgaonkar

Dissertations

Nonlinear optical properties of nanoscale semiconductors had been a topic of intense research in recent years in attempts to realize all-optical communication systems. These semiconductor nanoclusters, in the range of 1-100nm are hosted in a dielectric material and are considered as a particular example of Conditional Artificial Dielectric (CAD). It has been reported that the dielectric properties of such materials will be greatly changed by light intensity.

Two main paths to realize nano semiconductor clusters are reported in this dissertation. The Pulsed Laser Deposition (PLD) technique is first described. Here we were investigating the effect of surface modification of nano …

Assessing The Economic Impact Of Aircraft Noise On Communities, Ithan B. Zimmer

Dissertations

The impact of aircraft noise on communities is complex and multi-dimensional. This matter cannot be resolved without careful analysis of a complex array of related problems and issues including the environment, the economy, and quality-of-life concerns of people living in proximity to airports or aircraft routes. The effects of community noise are widespread and varied. Impacts can include sleep and speech interference, activity interference, general annoyance, and property value decrease. In order to improve public policy and provide a foundation for additional research, it is imperative to establish the extent of a problem. Dollars are often the least common denominator …

Object Detection And Activity Recognition In Digital Image And Video Libraries, Ibrahim Burak Ozer

Dissertations

This thesis is a comprehensive study of object-based image and video retrieval, specifically for car and human detection and activity recognition purposes. The thesis focuses on the problem of connecting low level features to high level semantics by developing relational object and activity presentations. With the rapid growth of multimedia information in forms of digital image and video libraries, there is an increasing need for intelligent database management tools. The traditional text based query systems based on manual annotation process are impractical for today's large libraries requiring an efficient information retrieval system. For this purpose, a hierarchical information retrieval system …

A More Efficient Document Retrieval Method For Texpros, Yin Dong

Dissertations

Document processing is a critical element of office automation. Through document classification, extraction and filing, documents are automatically placed into a knowledge base according to certain rules. Document retrieval is a process to get a document back according to a user's requirements and to show the results to the user. Hence, a good user-interface and an efficient retrieval algorithm become core parts of document retrieval.

Unlike previous browsers that have been proposed for this purpose, this dissertation develops a new browser that has a user interface with more tools, and one that has a more efficient retrieval algorithm that can …

The Banquet Type-Scene In The Parables Of Jesus, Fazadudin Hosein

Dissertations

Biblical narratives abound in ancient literary and oral conventions. One such convention is the type-scene. The study of the type-scene originated in 1933 with Walter Arend who studied compositional recurrent patterns and variations in the epics of Homer. Later, the study was developed by Robert Alter inhis treatment of biblical narratives. The type-scene was a narratorial device used by ancient orators and writers in which traditional elements of repetitive compositional patterns were told and retold ininnovative ways to an audience, raising their expectation and sometimes causing surprise. Conventional elements that make up the type-scene were catchwords, motifs, characters, and themes. …

Teaching Strategies And Adaptations Of Teachers In Multiculturally Diverse Classrooms In Seventh-Day Adventist K-8 Schools In North America, Annabelle I. Lopez

Dissertations

Problem. The rapid growth of diverse populations is affecting the educational system, and teachers often have not received training in multicultural education. The goal of this study is to document the multicultural teaching experiences of elementary Seventh-day Adventist (SDA) teachers in the United States and Canada.

Method. Survey questionnaires were sent to elementary school teachers to ascertain training, goals, paradigms, and challenges in teaching students from diverse cultures. Through a purposive sampling process, three teachers were chosen for in-depth interviews and observation.

Results. Seventy percent of the 1,780 questionnaires sent out were returned. Many teachers reported receiving training in their …

The Magisterium And Theologians In The Writings Of Avery Robert Dulles, Darius W. Jankiewicz

Dissertations

This study explores Avery Robert Dulles's views regarding the nature of doctrinal authority in the Roman Catholic Church, and particularly the relationship between the hierarchical magisterium and theologians, with special focus on the apparent disparity between his early post-Vatican II views and his recent views.

To attain this goal, Dulles's convictions were considered in the context of his doctrine of the Church, and, whenever relevant, from the perspective of his overall theological system, without neglecting the presuppositions undergirding his ideas and the methodologies used to support them. To highlight contrasting positions, three periods are studied consecutively: the earliest writings, i.e., …

The Learning Disabled College Student : Experiencing The Hundred-Acre Wood, Frances Lowry Schander

Dissertations

Problem. Learning disabled (LD) college students are attempting college in unprecedented numbers. This study explores the experiences of four graduating college students to determine how they managed their disability in the educational environment that has provided them with much difficulty for many years.

Method. A qualitative case study design with purposive sampling was used for this study. Over 9 months, four female college students, identified as learning disabled, were interviewed. In addition, conversations were held with their parents and teachers whom the four students identified as being “helpful.” Each student’s experience in college is described and analyzed. Important themes, along …

Adult Learning In The Context Of Interreligious Dialogue: A Collaborative Research Study Involving Christians, Jews, And Muslims, Nadira K. Charaniya, Jane West Walsh

Dissertations

What do American Jews really know about Muslims? What do American Muslims really know about Jews? These questions undergird this account of how two religious adult educators--a Jew and a Muslim--came to engage in collaborative, dialogic, relational and transformational interreligious learning and research. Emerging out of this collaborative doctoral research project at National-Louis University, this study addresses two different dimensions of research and practice in the field of adult education: the nature of adult learning in the interreligious dialogue process and the role of collaborative methods in research methodology.

Adult learning in the context of interreligious dialogue can best be …

The Effects Of Teachers' Flow Experiences On The Cognitive Engagement Of Students, Nian Q. Zhu Edd

Dissertations

The purpose of this quantitative study was to investigate the relationship between teachers' flow experiences and student cognitive engagement during class time. Study participants consisted of students and their teachers in grades 6 through 10 from a number of elementary and secondary schools in the Fraser Valley region of British Columbia, Canada. Data were collected through the use of the Experience-Sampling Method, originally developed by Csikszentmihalyi to investigate flow experiences, that allowed teachers and students to fill out sampling forms in response to randomly generated electronic signals transmitted to pagers or wrist watches that the teachers wore. Data were collected …

Levels Of Acculturation Of Children Of Mexican Descent As Perceived In Their Kinetic Family Drawings, Kevin Adolfo Rosado

Dissertations

Problem. Information on Hispanic children and their families is limited. More research activity is crucial in the light of the rapidly expanding population of Latino/Hispanics. Mexican families present a particular challenge to clinicians and to treatment settings, as well as to researchers. The impact of acculturation on psychological assessment instruments is largely unknown. This study sought to use the Kinetic Family Drawing (KFD) as a tool to gain information about how differences in acculturation are reflected through drawings done by children of Mexican descent.

Method. Private and public schools with representation of Mexican-American and Caucasian children from rural, semi-rural, small …

An Analysis Of Role Perceptions And Job Satisfaction Of Secondary-School Counselors In Trinidad And Tobago, Hillman St. Brice

Dissertations

Problem. The increasing emphasis on school counseling by the Ministry of Education in Trinidad and Tobago highlights the need to clarify and standardize the role of the counselor in the secondary schools. The satisfaction of these needs can be facilitated by determining the perceptions held by counselors, principals, teachers, and students about the counselor’s role in the school system; by clearly articulating this role; and by identifying the relationships between the counselor’s role and the counselor’s job satisfaction. The burden of this study was to determine these perceptions and relationships.

Method. A descriptive mode of inquiry was used to explore …

Cognitive And Non-Cognitive Characteristics As Predictors Of College Success Among African-American And Caucasian Students In A Comprehensive Community College, Denise Marie Scameheorn

Dissertations

Problem. This study examined the relationship of selected cognitive and non-cognitive characteristics of community college students, particularly Aftican-American and Caucasian students, with self-concept, class attendance patterns, and GPA.

Method. The subjects were 185 community college students. They completed the Non- Cognitive Questionnaire and the Learning and Study Strategies Inventory. Demographic data were obtained from the college student database. Instructors provided attendance and grade records.

Results.

1. Student self-concept was related to age, academic background and skills, and selected learning and study strategies.

2. Student class attendance was related to family support, ethnicity, academic background and skills, and motivation.

3. Student …

The Effect Of A Jail-Based Substance-Abuse Program On Anxiety, Depression, And Locus Of Control, Peggy Leigh Frick

Dissertations

Problem. More and more alcohol and drug users are coming into contact with the criminal justice system. Some of these individuals may have comorbid mental health issues. This present study sought to determine whether the New Avenues Substance Abuse Treatment Program, housed at the Correctional Work Center, Davidson County, Tennessee, did, in the course of treatment, have an impact on the anxiety, depression, and locus of control of those individuals completing the program.

Method. The Beck Depression Inventory-II, the Beck Anxiety Inventory, and the Rotter Internal versus External Control of Reinforcement Scale were utilized to measure depression, anxiety, and locus …

The Classification Of The Greek Manuscripts Of 1 Peter With Special Emphasis On Methodology, Kenneth Keumsang Yoo

Dissertations

The problem. Either because of methodological flaws or because of inadequate databases, Greek manuscripts of 1 Peter have not been satisfactorily examined. This study is an attempt to establish a better textual critical method and to apply it to a larger database. The method identifies new statistical techniques that facilitate quantitative analysis, necessary to establish the tentative groups that are used for the profiling of manuscripts.

The method. The method I used for the classification of Greek manuscripts of 1 Peter combines the computer-generated profile method and a statistical technique known as factor analysis. The profile method has …

Tradition As A Viable Option For Protestant Theology : The Vincentian Method Of Thomas C. Oden, Kwabena Donkor

Dissertations

This dissertation analyzes Thomas Oden's theological method in order to understand its structural elements, and thereby, to facilitate a clearer comprehension of his commitment to the classic Christian tradition in the context of the increasing contemporary emphasis on postmodernism in Protestant theology. Given Oden's affirmation of the Christian tradition and his simultaneous commitment to postmodern sensitivities, the dissertation strives to examine how Oden is able to harmonize what essentially appears to be a dialectical situation. Thus, although the emphasis on tradition in Oden raises the perennial issue of Scripture versus Tradition, the postmodern question raises the issue beyond the usual …

The Evolving Face Of God As Creator: Early Ninteenth-Century Traditionalist And Accommodationist Theological Responses In British Religious Thought To Paleonatural Evil In The Fossil Record, Thane Hutcherson Ury

Dissertations

The Topic

From the early Reformation through the early 1800s, Gen 1-11 was consensually understood as providing a perspicacious, historical account of how God brought the world into being. Tenets of belief included six literal 24-hour days of creation and a catastrophic global Flood, and most often the conviction that Gen 1:31 implies that no evil of any type existed prior to the Fall. New geological interpretations in the early nineteenth century, however, pointed toward an earth history that seemed anything but very good, instead suggesting a harsh concatenation of deep-time prelapsarian pain, struggle, destruction of the weak, predation, diseases, …

Impact Of A Short-Term Shelter Program On Selected Outcome Indicators Among Youths And Their Parents, Gale Sandra Hackworth

Dissertations

Problem. Innovative services have been developed over the last 10 years to assist families in coping with the increased demands associated with child rearing. One burgeoning area of resource development has been that of"respite" for parents. A variety of programs and methods have been utilized in providing these services. While families frequently proffer the benefit of these programs, there is a relative paucity of data to substantiate these claims. This study has attempted to evaluate the effectiveness of respite programming using outcome indicators which include both objective and subjective measures. This study focused upon families utilizing a short-term respite …

A Study Of Officer's Use Of Leadership Skills Learned In The Navy's Intermediate Officer Leadership Course, William F. Conroy Edd

Dissertations

The U.S. Navy's present-day leadership training program, referred to as the Leadership Continuum, provides for leadership training for all enlisted personnel and officers at initial entry into the naval service and at designated career milestones until retirement. The Leadership Continuum evolved from a series of formal Navy leadership training programs dating back to the late 1970s. The Navy has expended a considerable amount of fiscal resources over the past 20 years in an attempt to provide quality leadership training to its personnel. However, past studies have revealed that leadership training course graduates are provided with little to no incentives by …

Values Education Influence On Elementary Students' Self-Esteem, Ron W. Germaine Edd

Dissertations

The purpose of this study is to determine if there was a significant difference in measures of self-esteem between elementary school students to whom specific values were formally taught in their school as part of the curriculum and those who did not receive such instruction. The setting for the study was a school district in Canada that had identified sixteen values through community consensus. The district developed curriculum and lessons for the teaching of these values. A quasi-experimental research design was utilized. The treatment group was taught values as a formal part of their curriculum for a period of four …

The Balancing Act: Work Environment Issues For Women With Children In Student Affairs, Mary Kimberly Braun Padulo Edd

Dissertations

Increasingly in the past two decades, student affairs work at American's universities has been undertaken by women. This work with the co-curricular life of the students in higher education requires administrators at all levels to have a flexible schedule with the ability to commit evenings and weekends to their work. Challenges for academe and for women in the profession have emerged as more women enter the field. One of the most problematic areas is the retention of highly educated and experienced female administrators once they have children. Workplace environment, including work schedule, job demands and employer support, have been suggested …

Changes In Navy Leadership Theory And Practice: Post-Vietnam, Nicholas A. Trongale Edd

Dissertations

Since the Vietnam War, Navy leadership theory and practice has changed, becoming more like current civilian leadership theory and practice than traditional leadership of old. Indicators of this change have been seen in journal writings, the new Navy performance evaluation structure, current Navy leadership training, and by the birth of a Navy Command Leadership School. This study was designed to explore the evolution and recent history of the Navy's leadership theory and practice for indications of change. Combining a qualitative and quantitative methodology, this study used a 5-point Likert-type scale survey that included a written comments section. Over 70% of …

School-Based Management In Alberta: Perceptions Of Public School Leaders, 1994–1997, Robert James Wilson Edd

Dissertations

In 1994, the Government of Alberta, Canada, instituted major fiscal measures designed to reduce operating costs and a large provincial debt. In tandem, Alberta Education restructured public education by: reducing the number of school districts, redefining the role of school boards, increasing the involvement of parents, initiating Charter schools, expanding student testing, downsizing Alberta Education, improving delivery of services to children, and mandating the implementation of school-based management in all public schools (Alberta Education News Release, January 18, 1994). The purpose of this study was to develop an understanding of how the implementation of school-based management, through the first three …

Teachers’ Perceptions Of School Culture In Relation To Job Satisfaction And Commitment, Mayda Bahamonde-Gunnell

Dissertations

The concepts of culture and climate have been investigated in the corporate world and have been found to relate to increased job satisfaction and commitment. Schools can also benefit from such findings. In the school setting there are a number of studies that have been conducted relating school culture and climate to student achievement, but few have investigated the relationship of school climate and culture to job commitment and satisfaction.

Organizational culture, employee job satisfaction, an d employee commitment are all variables that must be measured in order to investigate how culture affects the organization. In this study, teachers’ perceptions …

Membership At Risk: Representation Of Disability In Popular Counselor Education Textbooks, Nancy A. Rosenau

Dissertations

Representations of disability in American culture are saturated with negative images and meanings. Pervasive negativity threatens full societal membership and its related benefits of a sense of belonging, connectedness, and inclusion, and a source of identity, social networks and empowerment for people with disabilities.

Disability pride is a resistant movement that seeks to denaturalize assumptions about the negative experience of disability. The multicultural turn in counseling recognizes that competent practice requires awareness of diverse groups in society. Disability as the largest minority group in the U.S. requires counselor awareness. This study examined the representation of disability in a sample of …