Digital Commons Network^™

Physical And Geotechnical Characterization Of Water Treatment Plant Residuals, Swamy C. Basim

Dissertations

The study of Water Treatment Plant (WTP) residuals is of recent origin and very little information is available in literature regarding these residuals. These waste materials have high solids contents, even in the mechanically dewatered condition, making it difficult to handle. These, along with stringent environmental regulations have forced the water utilities to look for new disposal options for these residuals. For this purpose as well as for evaluating suitable options for the beneficial reuse of residuals, it is essential to characterize WTP residuals.

As the dewatered residuals are plastic, the researcher may be prompted to treat these materials as …

Flame Dynamics In Steady Strained Flows, Zili Huang

Dissertations

In this dissertation, the response of a premixed flame to time-dependent strained flow fields is investigated. Because of the potential application to turbulent combustion modeling, the main focus is on the particular case of a flame in stagnation point flow with an imposed oscillatory strain rate. The flame is modeled as a hydrodynamic discontinuity separating burned from unburned gasses. To complete the formulation of the problem, conditions relating the fluid variables across the flame front are needed, as is a flame speed equation that determines the evolution of the discontinuity. These conditions are derived through asymptotic analysis of the flame …

On-Line State And Parameter Estimation In Nonlinear Systems, David A. Haessig

Dissertations

On-line, simultaneous state and parameters estimation in deterministic, nonlinear dynamic systems of known structure is the problem considered. Available methods are few and fall short of user needs in that they are difficult to apply, their applicability is restricted to limited classes of systems, and for some, conditions guaranteeing their convergence don't exist.

The new methods developed herein are placed into two categories: those that involve the use of Riccati equations, and those that do not. Two of the new methods do not use Riccati equations, and each is considered to be a different extension of Friedland' s parameter observer …

Automatic Document Classification And Extraction System (Adoces), Xuhong Li

Dissertations

Document processing is a critical element of office automation. Document image processing begins from the Optical Character Recognition (OCR) phase with complex processing for document classification and extraction. Document classification is a process that classifies an incoming document into a particular predefined document type. Document extraction is a process that extracts information pertinent to the users from the content of a document and assigns the information as the values of the “logical structure” of the document type. Therefore, after document classification and extraction, a paper document will be represented in its digital form instead of its original image file format, …

Knowledge Management For Texpros, Jianshun Hu

Dissertations

Most of the document processing systems today have applied Al technologies to support their system intelligent behaviors. For the application of Al technologies in such systems, the core problem is how to represent and manage different kinds of knowledge to support their inference engine components' functionalities. In other words, knowledge management has become a critical issue in the document processing systems. In this dissertation, within the scope of the TEXt PROcessing System (TEXPROS), we identify knowledge of various kinds that are applicable in the system. We investigate several problems of managing this knowledge and then develop a knowledge base for …

Development Of Computer Model And Expert System For Pneumatic Fracturing Of Geologic Formations, Brian Michael Sielski

Dissertations

The objective of this study was the development of a new computer program called PF-Model to analyze pneumatic fracturing of geologic formations. Pneumatic fracturing is an in situ remediation process that involves injecting high pressure gas into soil or rock matrices to enhance permeability, as well as to introduce liquid and solid amendments. PF-Model has two principal components: (1) Site Screening, which heuristically evaluates sites with regard to process applicability; and (2) System Design, which uses the numerical solution of a coupled algorithm to generate preliminary design parameters.

Designed as an expert system, the Site Screening component is a high …

Fdtd-Based Full Wave Co-Simulation Model For Hybrid Electromagnetic Systems, Tong Li

Dissertations

In high-frequency ranges, the present electronic design automation software has limited capabilities to model electromagnetic (EM) systems where there are strong field effects influencing their characteristics. In this situation, a full-wave simulation tool is desired for the analysis and design of high-speed and non-linear EM systems. It is necessary to explore the interaction between the field and electronic components during a transient process when field effects are more significant. The finite-difference time-domain (FDTD) technique receives growing attention in the area of EM system analysis and simulation due to its simplicity, flexibility and robustness. It is a full-wave simulation method that …

Modeling Controlled Vocabularies Using Oodbs And Multilevel Area Diagrams, Li-Min Liu

Dissertations

A Controlled Vocabulary (CV) is a software system of domain knowledge that consolidates and unifies the terminology of a large application domain. With a common, centralized CV, costly and time-consuming translations can be eliminated between pairs of organizations and pairs of software systems. Unfortunately, the more knowledge we put into a CV, the harder it is to understand and maintain it. In this dissertation, a comprehensive theoretical methodology for modeling CVs using Object-Oriented Database (OODB) technology is presented. We present two methods for representing a semantic network CV as an equivalent OODB, which we call an Object-Oriented Vocabulary Repository (OOVR). …

Towards A New Theory Of Personal Teaching Efficacy: The Development And Testing Of A New Model And Scale Using Teachers And Student Teachers Participating In A Reflective Practitioner Model Practicum, Jan Shields Edd

Dissertations

Research shows that teachers' sense of efficacy is a central mediator of teacher effectiveness and is related to student achievement. Generally, the results have been interpreted using a two-factor model of teacher efficacy. However, most researchers consider teachers' sense of efficacy to be a multidimensional construct with many underlying factors. This study introduces a new theory of personal teaching efficacy which proposes that personal teaching efficacy is best explained from a volitional perspective. The first purpose of the study was to reconceptualize the personal teaching efficacy construct and develop a model and scale. As a result of factor analysis techniques, …

Determining Cutoff Scores For The Mmpi-2 Substance Abuse Scales For An Inmate Population, Barbara A. Johnston

Dissertations

The current research project examined the psychometric properties of the substance abuse scales of the Minnesota Multiphasic Personality Inventory, Second Edition (MMPI-2) with an inmate population. The scales of interest included the MacAndrews Alcoholism Scale Revised (MAC-R), the Addiction Potential Scale (APS) and the Addiction Acknowledgement Scale (AAS).

A total of 80 subjects were administered the MMPI-2 which resulted in 73 valid profiles. Of the valid profiles, 54 were chemically dependent and 19 were nonchemically dependent inmates. There were no differences between groups in regard to sociodemographic variables.

The data analyses indicated that the AAS and APS are efficient and …

The Muggletonians: A People Apart, Juleen Audrey Eichinger

Dissertations

Muggletonians were followers of John Reeve and Lodowick Muggleton, seventeenth-century London tailors who believed that they were the last two witnesses of the Spirit described in Revelation 11:3. A dizzying array of religious and political groups flowered for a time in mid-seventeenth-century England, inspired by the establishment of the Church of England and the continental Reformation in prior centuries, and unleashed by the collapse of the English monarchy in 1640. Muggletonians were long considered to be heretics or lunatics, one example of the many religious eccentrics and fanatics who flourished in England during this period.

The opportunity now exists to …

Judicial Decision Making Under Michigan Sentencing Guidelines, Abel E. Ekpunobi

Dissertations

Many states and the federal judiciary have adopted sentencing guidelines as a mechanism of sentencing reform. This study used the bounded rationality model to investigate judicial decision-making under Michigan Sentencing Guidelines, and the effectiveness o f the guidelines in reducing or eliminating sentencing disparities — situations in which legally similar defendants receive dissimilar sentences.

A statistical and comparative analysis of a database sample of felony cases (n = 20,834), sentenced in four different-sized Michigan counties from 1992 through 1997, was examined with logistic and linear regression models. Logistic regression results indicate a significant association (p < .05) between incarceration and some legal and extralegal variables. Legal variables, such as prior felony convictions, sentencing guideline scores, offense type/severity, the defendant’s relationship with the criminal justice system, and extralegal variables, such as the defendant’s race and gender, year and county of sentencing, are important predictors of sentencing outcomes. Linear regression results indicate a significant association (p < .05) between the minimum term of imprisonment and prior felony convictions, sentencing guidelines and offense type/ severity, but not with extralegal variables. These results suggest that judicial decision-making remains a human/“bounded rationality” process.

The findings of this study …

An Analysis Of Parental And Peer Attachment And Its Determinant Factors: A Test Of Attachment Theory On Malaysian Students At American Universities, Noriah Mohd. Ishak

Dissertations

This study examined the quality of parental and peer attachments among Malaysian students studying at universities in the midwestern region of the United States. The study was conducted in two phases. Two hundred and two students (106 male, 96 female) participated in the first phase of the study, and 8 students (4 male, and 4 female) participated in the second phase of the study. Phase One employed a cross-sectional quantitative design using a self-administered questionnaire [the Inventory of Parental and Peer Attachment (IPPA) developed by Armsden and Greenberg (1987)] and revised by the researcher. This instrument has 53 items that …

Periodicity And Disorder, Simeon D. Simeonov

Dissertations

We have studied four examples of periodicity and disorder in nature and the phenomena associated with them.

In the first chapter of the dissertation we present an introduction to this work.

In the second chapter, the photonic band structures of two types of zinc blend structures are computed using the plane wave expansion method. Both structures are formed from an array of dielectric spheres in a vacuum background. In a first type zinc blend structure the spheres have the same size but different dielectric constants. In a second type of structure we keep the dielectric contrast of the spheres the …

A Novel Readout Method For Focal Plane Array Imaging In The Presence Of Large Dark Current, Changqing Qiu

Dissertations

This research was an investigation of a novel readout method for focal plane array (FPA) optical imaging, especially for very sensitive detectors with large dark current. The readout method is based on periodically blocking the optical input enabling the removal of the dark current integration from the output. The research demonstrated that it is feasible to modulate the optical input with the designed readout circuit and thus achieve longer signal integration time to enhance the signal-to-noise ratio.

Study of a proposed circuit model showed that in theory the correlated readout method could increase the output voltage swing and reduce the …

Parallelization For Image Processing Algorithms Based Chain And Mid-Crack Codes, Wai-Tak Wong

Dissertations

Freeman chain code is a widely-used description for a contour image. Another mid-crack code algorithm was proposed as a more precise method for image representation. We have developed a coding algorithm which is suitable to generate either chain code description or mid-crack code description by switching between two different tables. Since there is a strong urge to use parallel processing in image related problems, a parallel coding algorithm is implemented. This algorithm is developed on a pyramid architecture and a N cube architecture. Using link-list data structure and neighbor identification, the algorithm gains efficiency because no sorting or neighborhood pairing …

Oxidation Of Dimethyl-Ether And Ethylene In The Atmosphere And Combustion Environment And Thermodynamic Studies On Hydrofluorocarbons Using Ab Initio Calculation Methods, Takahiro Yamada

Dissertations

Reaction pathways and kinetics are analyzed on CH₃OC·H₂ unimolecular decay and on the complete CH₃OC·H₂ + O₂ reaction system using thermodynamic properties (ΔH_f°₂₉₈, S°₂₉₈, and C(T) 300≤T/K≤1500) derived by two ab initio calculation methods, CBS-q and G2. These are used to determine thermodynamic properties of reactants, intermediate radicals and transition state (TS) compounds. Quantum Rice-Ramsperger-Kassel (QRRK) analysis is used to calculate energy dependent rate constants, k(E), and master equation is used to account for collisional stabilization. Comparison of calculated fall-off with experiment indicates that the CBS-q and …

A Theoretical Study Of Bubble Motion In Surfactant Solutions, Yanping Wang

Dissertations

We examine the effect of surfactants on a spherical gas bubble rising steadily in an infinite fluid at low and order one Reynolds number with order one and larger Peclet numbers. Our mathematical model is based on the Navier-Stokes equations coupled with a convection-diffusion equation together with appropriate interfacial conditions. The nonlinearity of the equations and boundary conditions, and the coupling between hydrodynamics and surfactant transport make the problem very challenging.

When a bubble rises in a fluid containing surface-active agents, surfactant adsorbs onto the bubble surface at the leading edge, convects to the trailing edge by the surface flow …

Gustavo Gutierrez's Understanding Of The Kingdom Of God In The Light Of The Second Vatican Council, Victor Figueroa-Villarreal

Dissertations

The proclamation of the Kingdom of God has been reformulated in every age and interpreted accordingly with regard to time and place. Traditionally within Roman Catholicism the Kingdom of God was identified with the church. This view produced a triumphalist attitude within the Roman Catholic Church. The Second Vatican Council brought a new attitude of openness toward the modern world, and with it the council opened the door for Roman Catholic liberation theologians to look for new ways to find what they regarded as the just solutions to the problems of Latin America.

The purpose of this research is to …

Screening For Eating Disorders Utilizing The Minnesota Multiphasic Personality Inventory, Roseann M. Woodka

Dissertations

Problem

Eating disorders, in the form of anorexia nervosa and bulimia nervosa, have been recognized as significant mental-health issues for the last three decades, and the incidence is rising as we approach the new millennium. Currently, many women who come into a mental-health setting due to depression, anxiety, low self-esteem, relationship issues, sexual issues, etc., are also struggling with eating-disordered behaviors, thoughts, and feelings. These behaviors, thoughts, and feelings may remain well hidden from the counselor throughout the course of therapy or until they become severe and more difficult to treat. Because eating disorders are very complex involving psychological, physical, …

Object Relations And Identity Disturbances In Bulimic Women, Kathy Appledorn

Dissertations

Problem. Although diagnostic criteria of bulimia center on weight- and food-related issues, eating disorders may be viewed as a response to deficits in self-regulatory functions. The purpose of this study was to investigate the relationship between the severity of bulimia, object relations, and identity. This study tested the hypotheses that women with a more severe eating pathology have high scores on object-relations disturbance as well as identity disturbance. It was postulated that women who have been assessed as having a more cohesive ego might respond to cognitive behavioral therapy while those who are assessed as having less intact ego …

A Professional Competency Survey Of Organizational Consultants In San Diego County, Angie Mays Edd

Dissertations

The purpose of this study was to gain a clearer understanding of the rapidly growing field of Organizational Consulting. Specifically, this research focuses on developing profiles of various types of organizational consultants in San Diego County. The types of profiles considered included: Executive Coaches, Feedback Specialists, Motivational Speakers, Trainers, Educators, and Consultants. The research topics examined included: background and professional preparation of consultants, professional resources utilized, interventions most commonly used, and level of job satisfaction. A descriptive survey was employed to aid in the investigation. The questionnaire consisted of questions revised from Waller's (1988) national survey of training consultants, and …

Integration Of Faith And Learning In Christian Higher Education : Professional Development Of Teachers And Classroom Implementation, Constance Chibuzo Nwosu

Dissertations

Problem. Few studies have focused on effective professional development programs that enhance faith-learning implementation in the Christian higher education classroom, and little has been documented about what integration of faith and learning actually looks or sounds like in Christian higher education classrooms.

Purpose. This study had four purposes:

1. To describe the training processes used for preparing teachers in Christian higher education for implementing EFL in the classroom.
2. To compare these methodologies with Jesus’ training methodologies and research-based professional development programs.
3. To understand how teachers in Christian higher education classrooms defined IFL.
4. To identify and document some exemplary practices of faith …

The Textual Relation Of The Peshitta Of Ezekiel 1-12 To Mt And To The Ancient Versions (Tg-J And Lxx), Joaquim Azevedo

Dissertations

Problem . The dilemma of the Syriac version is its mysterious provenance and the direct relationship it may have to the other versions (particularly G [Septuagint] and C^J [Targum Jonathan]). Thus some scholars have automatically discarded or ignored the Peshitta version as a useful tool (as a textual witness) for the study of the Hebrew text. The knowledge of textual problems, in this case the relationship of S [Peshitta Version] to the ancient versions, is of extreme importance in the analysis and study of the Hebrew Bible. The awareness of G [Septuagint], C^J [Targum Jonathan], and M [Masoretic …

The Relationship Between Parent Status And The Home Learning Environment, Self-Esteem, And Academic Achievement Of Fifth- To Eighth-Grade Students From Ohio Conference Seventh-Day Adventist Schools, Joseph R. Allison

Dissertations

Problem. The social issues at the end of the 20^th century have not left the Seventh-day Adventist church untouched. This present study sought to determine the differences that may exist between one- and two-parent students in the area of home learning environment, self-esteem, and academic achievement.

Method. Eighty-eight male and female students from 14 Ohio Seventh-day Adventist schools in grades 5-8 were studied. Data for the study were collected from three instruments: the Hare Self-Esteem Scale, the modified Henderson Environmental Learning Process Scale, and the Family Survey. Additional data were gathered from the Iowa Test of Basic Skills student …

Test-Retest Reliability Of Individual Student Acquisition And Retention Rates As Measured By Instructional Assessment, Matthew K. Burns

Dissertations

Statement of the problem. Research on Instructional Assessment is in its infancy. To date, no studies regarding its psychometric properties have been published, but the need for using technically sound assessment methods is prominent in education. Therefore, demonstrated technical adequacy is crucial. The lack of psychometric data for Instructional Assessment is especially noteworthy since it is one of the few educational assessment techniques that includes assessment of performance and cognitive learning theory, both of which have been linked to improved student achievement.

Method. Ninety-six students from Grades 1, 3, and 5 were individually taught a series ofwords from …

Sexual Politics And Subversion: Feminist Utopia As Praxis, Jennifer Sue Boyers

Dissertations

Literary studies meets up with sociology as feminist utopian fiction Is examined for what sociologist Dorothy Smith (1990) labels normal narrative and counter-narrative articulations of gendered structures of power. The method of analytical Induction Is used both In the choosing of the four novels for study and the resulting textual analysis. Ursula Le Guln's The dispossessed (1974), Marge Plercy's Woman on the edge of time (1976), Suzy McKee Chamas's Motherllnes (1978), and Sally Miller Gearhart's The wandereround (1979) are examined for their constructions of dystopian normal narratives, as well as for their reconstructions of subversive utopian counter-narratives, both articulating gendered …

Max Horkheimer’S Critical Theory Of Religion:The Meaning Of Religion In The Struggle For Human Emancipation, Michael R. Ott

Dissertations

Over the past thirty years much has been written about the critical theory of society that was produced by a small group of left-wing Hegelians in the Institute of Social Research in Frankfurt am Main, Germany and in the United States. However, except for the pioneering work of Rudolf Siebert, little has been written about the critical theory of religion as a fundamental and dynamic element of the entire critical theory’s struggle for human emancipation. This study seeks to make a contribution in the development of the critical theory of religion as a corrective to the one-sided, positivistic development of …

Panther Stories: A Gendered Analysis Of The Autobiographies Of Former Black Panther Members, Monica Marie White

Dissertations

Literature on the influences and contributions of women within the Black Panther Party has been scant. Much of the documentation is written by and is about males. This dissertation uses the autobiographies of former Black Panther members, both male and female, to explore their experiences while in the organization. Each author's political ideology and his/her perceptions of sexism and racism and distinctions in the writing style of men and women are considered. Seven single-authored autobiographies written by former Panther members were analyzed both individually and comparatively. There were similarities among all members of the group, such as their support of …

The Effects Of Social Skills Training And Reciprocal Social Skills Training With Parent/Guardian(S) On Behavior And Recidivism Of First Time Adjuncted Youth, Kathleen A. Bailey

Dissertations

This research investigates the effect of social skills training on 46 first-time adjudicated males, ages 13 through 15 and placed on traditional probation. The independent variable was the type of group. Three types of groups were conducted: Group I (youth who received social skills training with their parents or guardians), Group II (youth who received social skills training without parents’ or guardians’ participation), and Group III (a control group of youth who did not receive social skills training). The dependent variable was the Jesness Inventory scales and subscales scores, and the type of offenses (status, misdemeanor, and felony). The research …