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Section I: Thermodynamic Properties Of Hydrocarbon Radicals, Peroxy Hydrocarbon And Peroxy Chlorohydrocarbon Molecules And Radicals Section Ii: Kinetics And Reaction Mechanisms For : (1) Chloroform Pyrolysis And Oxidation (2) Benzene And Toluene Oxidation Under Atmospheric Conditions, Tsan-Horng Lay

Dissertations

Alkyl radicals are important active intermediates in gas phase photochemistry and combustion reaction systems. With the exception of a limited number of the most elementary radicals, accurate thermodynamic properties of alkyl radicals are either not available or only rough estimations exist. An H atom Bond Increment approach is developed and a data base [sic] is derived, for accurately estimating thermodynamic properties (ΔH_f°₂₉₈, S°₂₉₈ and Cp(T)) for generic classes of hydrocarbon radical species.

Reactions of alkyl radicals with molecular oxygen are one of the major reaction paths for these radicals in atmospheric photochemistry, oxidation of hydrocarbon …

Robust Approach To Object Recognition Through Fuzzy Clustering And Hough Transform Based Methods, Tianxiong Fu

Dissertations

Object detection from two dimensional intensity images as well as three dimensional range images is considered. The emphasis is on the robust detection of shapes such as cylinders, spheres, cones, and planar surfaces, typically found in mechanical and manufacturing engineering applications. Based on the analyses of different HT methods, a novel method, called the Fast Randomized Hough Transform (FRHT) is proposed. The key idea of FRHT is to divide the original image into multiple regions and apply random sampling method to map data points in the image space into the parameter space or feature space, then obtain the parameters of …

Design And Micro-Fabrication Of Tantalum Silicide Cantilever Beam Threshold Accelerometer, Chang Joo Kim

Dissertations

Microfabricated threshold accelerometers were successfully designed and fabricated following a careful analysis of the electrical, mechanical, and fabrication issues inherent to micron-sized accelerometers. A uniform cantilever beam was chosen because of the simplicity of design and fabrication. New models for the electrostatic force exerted on the cantilever beam were developed and calculations were made that accurately predicted the electrical characteristics of the accelerometer. The calculations also provided design guidelines for optimizing the accelerometer dimensions. Computer simulation demonstrated that the error of the electrostatic force, calculated using the most accurate model, was within 2% of the actual force which was obtained …

Combustion Of Methyl Chloride, Monomethyl Amine, And Their Mixtures In A Two Stage Turbulent Flow Reactor, Fuhe Mao

Dissertations

The feasibility of converting fuel-bound chlorine and nitrogen into HCl and N₂ with reduced pollutant emissions of CO, NO, and unburned hydrocarbons was investigated in a two-stage turbulent flow reactor. The study consists of four segments: completion and validation of the experimental facility, experimental and modeling studies of methyl chloride (CH₃Cl) combustion, similar studies on monomethyl amine (CH₃NH₂), and finally studies on simultaneous CH₃Cl and CH₃NH₂ combustion.

Validation of the experimental facility was made by combustion of ethylene (C₂H₄) and air under both fuel-lean …

Electrical Characteristics Of Novel Heterojunction Diodes Of Thin Relaxation Semiconductors/P-Si/, Hyung Joo Lee

Dissertations

The relaxation semiconductor is defined as one in which the dielectric relaxation time (τd;resistivity times permittivity) is greater than lifetime (τo). Non-hydrogenated amorphous Silicon Carbide (SiC) and KrF excimer laser induced disordered Si were used for the relaxation semiconductors. Both semiconductors have high resistivity, wide energy gap, and numerous defects. A novel diode, consisting of those semiconductors on p-type crystalline Silicon (c-Si), was fabricated. In the diode structure, an injecting contact was made on the relaxation material and a Schottky barrier contact was made on the c-Si.

Electrical characteristics of both diodes were found to have interesting …

Analysis Of Plates And Reinforced Concrete Columns By Cubic B-Spline Function, Gang Wang

Dissertations

Applying spline functions to numerical structural analysis has been more common in recent years. The recent increase use of spline functions is mainly due to their excellent characteristics, such as sectionalized continuity, linear combination, flexibility, and easy use for various boundary conditions. The whole deformed shape of some structures or substructures can be described with one displacement function constructed by a series of spline functions. By doing this, the mesh generation and the huge computer memory space are no longer needed because only one single superelement can be used in the whole process. The choice of spline functions as displacement …

On Adaptive Code Division Multiple Access Detectors, Wenping Chen

Dissertations

Several variations of adaptive CDMA synchronous receiver schemes which can automatically adjust to the system parameters, are studied in this dissertation. Unlike their non-adaptive counterparts, these adaptive detectors require no knowledge of the received signals' energies and have similar or better performance.

Minimum energy and decorrelating criterion are used to update the weights. Since weights are updated according to the changes of the detector's outputs, hence no training sequence is required. The convergences of some of the aforementioned adaptive detectors are also disscussed.

The detectors proposed in this dissertation are near-far resistant,thus rendering the high-precision power control unnecessary. Among them, …

A Grounded Theory Of Knowledge Utilization In Undergraduate Management Majors: An Institutional Study, Alfred Rosenbloom

Dissertations

No abstract provided.

The Radical Scot: The Educational Ideas And Philanthropies Of William Maclure (1763-1840), Eleanor Nicholson

Dissertations

No abstract provided.

Women And Men In Collaborative Working Partnerships: Connecting Two Disparate Modes Of Experience, Steven Blue Robbins Edd

Dissertations

This study provides an in-depth description of mixed gender working partnerships in a collaborative effort over a one year period. The research identified differences between men and women in mutually collaborative working partnerships at the undergraduate level in order to also discover what was productive or problematic between those women and men in the partnerships. The research studied twenty-two UCSD undergraduate women and men who worked together in partnerships with mutual goals. The research utilized phenomenological interviewing techniques. The focus was the perceptions and experiences of the participants. The interviews were designed to address two primary research questions: 1) What …

The Transition Era In Medical Education: A Critical Period For Loyola University School Of Medicine, Lucy Smith Shaker

Dissertations

No abstract provided.

Validation Of A Stress Scale For Asian American College Students And Variables Related To Their Perceptions Of Stress, Stephanie Falk

Dissertations

No abstract provided.

Experiences Of Moral Commitment: A Phenomenological Study, Suzanne West Macrenato Edd

Dissertations

This study's purpose was to increase understanding and meaning of the lived experience of moral commitment as practiced by participants at the time of the study, not in retrospective. Phenomenology was the research methodology selected to elicit participants' understanding of moral commitment through in-depth interviews. Study participants were referred using selection criteria which included: demonstration of sustained selfless service to others outside of one's work life and a demonstrated tendency to inspire others to engage in similar service. The four women and six men in the study, ranging from 33 to 78 years of age, represented blue-collar and professional occupations. …

A Comparative Investigation Of Self-Esteem, Achievement Motivation, Learning Style, And Parental Relationship Across Black And White Gifted/Talented Adolescent Groups, Michele Meaux

Dissertations

No abstract provided.

An Analysis Of The Expressed Needs For Vocational Education In Secondary Schools In Barbados, Jonathan H. Lewis

Dissertations

The purpose of this study was to examine the views held by administrators, teachers, students, and parents regarding the expressed needs for vocational education in secondary schools in Barbados.

The survey method was used to gather the data. All respondents were asked to complete a 42-item questionnaire. The population sample was 762, which was made up of 122 administrators, 224 teachers, 274 students, and 142 parents. The data were analyzed using the t-test and one-way analysis of variance.

The major findings in the study were: (1) All groups were homogenous in their response and expressed a strong need for all …

Identifying The Processed Products Of The Polymerase Polyprotein Of Coronavirus, Hong-Qiang Gao

Dissertations

No abstract provided.

Analysis Of Amino Acids Relevant To Activity And Substrate Specificity Of The Human Dna Repair Protein 0-6-Methylguanine Dna Methyltransferase (Mgmt), Susan Elizabeth Morgan

Dissertations

No abstract provided.

Pharmacokinetics And Pharmacodynamics Of Recombinant Hirudin Variant 2 (Rhv2) In Animal Models, Lalitha Iyer

Dissertations

No abstract provided.

Contribution Of Explanatory Style And Other Personal Attributes To Measures Of Retention And Success In Baccalaureate Nursing Students, Nancy Schreiber

Dissertations

No abstract provided.

The Evolution Of J. Sterling Morton High School During Its First Fifty-Seven Years, Linda K. Chase

Dissertations

No abstract provided.

A Comparative Study Of Crisis-Intervention Recommendations Within And Across Professional Groups, Jeannine Derose-Ihrig

Dissertations

No abstract provided.

Designing A Collaborative Work Environment: A Case Study Of Transformational Change, James Baker Morris

Dissertations

No abstract provided.

The Lived Experiences Of Faculty Over Age Sixty-Five: A Heideggerian Hermeneutical Analysis, Julie Mcnellis

Dissertations

No abstract provided.

The Impact Of Rapid Population Growth On Suburbs In The Rural-Urban Fringe, Carol Sonnenschein

Dissertations

No abstract provided.

The Relationship Of Job Satisfaction, Leadership Behavior And Locus Of Control Of Human Resource Development Professionals, Robert W. Denker

Dissertations

No abstract provided.

Leadership: Personal Narratives Of Practitioners, R. Daniel Israel Edd

Dissertations

Leadership scholars and researchers have still not come to an agreement as to what the nature of leadership is. Most research within leadership studies has been grounded in preconceived or stated definitions of leadership. However, very little information exists about people's experiences of leadership. This project addresses the lack of experiential clarification of the leadership relationship. It utilizes a new leadership research method grounded in the experience of people. Leadership narrative research uses the stories people tell about their leadership experiences as a form of data collection This study is designed to discover if Rost's (1991) definition: "Leadership is an …

An Extension To The Avc Discrimination Test By The Addition Of One Level Above Avc Level Vi, Charles P. Butler

Dissertations

Kerr, Meyerson and Flora (1977) devised a series of six small learning tasks that could be used to assess developmentally disabled individuals on the typical tasks to be performed in a school setting or sheltered workshop and required very simple equipment. The tasks were imitation, position discrimination, visual discrimination, match-to sample, auditory discrimination and combined auditory visual discrimination. Davinc (1990) suggested that there may be transitional skills between AVC levels IV and V not found by Kerr et al. Davine (1990), Wilson (1991) and Buder (1992) devised a series of experimental tasks designed to test this notion. All used nonidentity …

A Causal-Comparative Study Of The Relationship Of Mathematics, Science, Athletics And The Career Expectations Of Adolescent Women, Elwood Martin Bowers

Dissertations

The premise of this study is that high school women who complete course work in advanced mathematics and advanced science and participate in organized athletic programs will develop skills, knowledge, and attitudes that facilitate and encourage expanded options in their occupational expectations. It was hypothesized that such women would have occupational expectations that reflect a greater degree of gender integration or nontraditionality than women who do not participate in such activities. Other environmental or attribute variables such as parents' occupation, birth order, and constructs of self concept, were examined for intervening or modifying effects on the major premise.

Participants in …

The Effects Of A Monetary Bonus And Penalty On The Performance Of A Simple Monitoring Task, Gordon Henry

Dissertations

The purpose of the present study was to compare the effects of three different pay systems on human monitoring performance. With increasing automation, monitoring tasks are becoming increasingly common, but methods of compensation that will promote good performance remain unexamined. Although hourly pay is typically used, data suggest that contingent pay may be more effective in motivating high levels of performance.

In the current study, six undergraduate students, four females and two males ranging in age from 19 to 21 years, performed a monitoring task analogous to one performed by a security guard. Specifically, subjects observed a television screen and …

The Effects Of Systems-Centered Versus Individual-Centered Training On The Analysis Of Organizational Problems, Jane E. Devries

Dissertations

This study analyzed the effects of systems-centered (S) training, individual centered (I) training, and no formal training (C) on the ability to identify organizational problems. Three groups of 10-14 undergraduates participated. Subjects completed a pre-test that required analysis of 10 one-page vignettes describing some type of organizational problem. Each participant rated the quality of the vignettes to assess the amount of critical information presented, and identified the organizational problem, the rationale for targeting the problem, and questions that should be asked of the management to obtain more information. Groups S and I received six hours of systems-centered training or individual …