Digital Commons Network^™

Engineering Design Of An Anaerobic-Aerobic System To Treat Chlorophenols, Chih-Ju Jou

Dissertations

The present work was aimed at determining the effect of the main operating parameters on the performance of an anaerobic-aerobic reactor system to degrade toxic chlorinated compounds. In previous work conducted in the Biological Treatment Lab at NJIT it was shown that this system is capable of achieving the complete degradation of chlorophenols. In that system, reductive dehalogenation took place in the first anaerobic reactor, which was followed by a second aerobic reactor in which the degradation products of the first reactor were mineralized. In the present work the role of a number of parameters that can have a significant …

A Comprehensive Part Model And Graphical Schema Representation For Object-Oriented Databases, Michael H. Halper

Dissertations

Part-whole modeling plays an important role in the development of database schemata in data-intensive application domains such as manufacturing, design, computer graphics. text document processing, and so on. Object-oriented databases (OODBs) have been targeted for use in such areas. Thus, it is essential that OODBs incorporate a part relationship as one of their modeling primitives. In this dissertation, we present a comprehensive OODB part model which expands the boundaries of OODB part-whole modeling along three fronts. First, it identifies and codifies new semantics for the OODB part relationship. Second, it provides two novel realizations for part relationships and their associated …

Pyrolysis And Oxidation Of Chloromethanes Experiment And Modeling, Wenpin Ho

Dissertations

An experimental study on pyrolysis and oxidation of CH₂Cl₂ and CH₃Cl in oxygen/hydrogen or oxygen/methane mixtures and argon bath gas was carried out at 1 atmosphere pressure in tubular flow reactors. Degradation of CH₂Cl₂, or CH₃CI, along with the formation and destruction of intermediate and final products was analyzed systematically over 873 to 1273°K, with average residence times of 0.2 to 2.0 seconds.

Thermochemical parameters: enthalpy, entropy, and heat capacities for many chloro-oxy-carbon products and intermediates are calculated using the techniques of group additivity and the THERM computer code. …

Morphological Operations In Image Processing And Analysis, Chamim Christopher Pu

Dissertations

Morphological operations applied in image processing and analysis are becoming increasingly important in today's technology. Morphological operations which are based on set theory, can extract object features by suitable shape (structuring elements). Morphological filters are combinations of morphological operations that transform an image into a quantitative description of its geometrical structure which based on structuring elements. Important applications of morphological operations are shape description, shape recognition, nonlinear filtering, industrial parts inspection, and medical image processing.

In this dissertation, basic morphological operations are reviewed, algorithms and theorems are presented for solving problems in distance transformation, skeletonization, recognition, and nonlinear filtering. A …

Medium Access Control Mechanisms For High Speed Metropolitan Area Networks, Michail Papamichail

Dissertations

In this dissertation novel Medium Access Control mechanisms for High Speed Metropolitan Area networks are proposed and their performance is investigated under the presence of single and multiple priority classes of traffic. The proposed mechanisms are based on the Distributed Queue Dual Bus network, which has been adopted by the IEEE standardization committee as the 802.6 standard for Metropolitan Area Networks, and address most of its performance limitations. First, the Rotating Slot Generator scheme is introduced which uses the looped bus architecture that has been proposed for the 802.6 network. According to this scheme the responsibility for generating slots moves …

On Generalized Adaptive Neural Filter, Zhiqiang Zhang

Dissertations

Linear filters have historically been used in the past as the most useful tools for suppressing noise in signal processing. It has been shown that the optimal filter which minimizes the mean square error (MSE) between the filter output and the desired output is a linear filter provided that the noise is additive white Gaussian noise (AWGN). However, in most signal processing applications, the noise in the channel through which a signal is transmitted is not AWGN; it is not stationary, and it may have unknown characteristics.

To overcome the shortcomings of linear filters, nonlinear filters ranging from the median …

Statistical, Random And Fractal Characterizations Of Surface Topography With Engineering Applications, Gongyao Zhou

Dissertations

Two methods, namely the conventional and fractal geometry methods, are developed for surface topography characterization. The conventional method utilizing statistical and random process techniques is used to study waterjet machined surfaces. In the study the waterjet surfaces are separated into smooth and striation zones, where striation influence is negligible in the smooth zone. It is found that the smooth zone has a random, moderately isotropic texture, with the height distribution nearly Gaussian. In the striation zone the major frequencies of the surface profile power spectra are independent of cutting parameters, while the amplitudes of these frequencies monotonically increase with cutting …

The Effects Of A Monetary Incentive System On The Performance Of Rolloff Truck Drivers, Jeanne Marie Lameie

Dissertations

Studies have shown that individuals working under individual monetary incentive conditions perform at higher rates than those working under an hourly pay condition (Farr, 1976; Frisch & Dickinson, 1990; Gaetani, Hoxeng, & Austin, 1985; George & Hopkins, 1989; London & Oldham, 1977; Nebeker & Neuberger, 1985; Orphen, 1982; Terborg & Miller, 1978; Yukl, Wexley, & Seymore, 1972). Although these studies indicate that incentive pay improves productivity, the results of two laboratory studies suggest that the portion of pay that is tied to performance is not important (Frisch & Dickinson, 1990; Gillette, 1991). In other words, once pay is linked to …

Dyadic Similarity Of The Superintendent-Principal Interpersonal Relationship, Principal’S Job Satisfaction, And Subordinate’S Performance Evaluation, Richard William Drury

Dissertations

Due to mounting school improvement demands, the role of the principal has increasingly received pressure throughout the past decade. Although frequently referred to as the catalyst for effective school change, few empirical studies exist addressing organizational variables influencing this key administrative position. It has strongly been suggested that the interpersonal relationship principals share with their superintendent may affect the principal's job satisfaction and performance evaluation.

The purpose of this study was to examine the situational effect of dyadic similarity on the superintendent-principal interpersonal relationship. Specifically, the study explored the relationship of managerial, dyadic similarity and subordinate outcomes. According to similarity …

A Status Study Of Formal Evaluation Procedures Employed By Michigan Philanthropic Foundations, John R. Seita

Dissertations

Little is known about the degree that philanthropic foundations use formal evaluation. This study investigated and described how Michigan based foundations of different sizes and types use formal evaluation for decision making regarding the (a) funding of grant proposals and (b) determining the performance of existing projects. Further, the study provides a description of current evaluation practice and capacity in foundations and plans that foundations have for increasing the evaluation capacity for themselves and of nonprofit grantees.

This study was conducted by mail questionnaire, which was developed by the researcher. A total of 134 questionnaires out of 226 mailed were …

An Experimental Demonstration Of The Transitive Conditioned Establishing Operation With Pigeons, Rachel Nunes Da Cunha

Dissertations

Skinner (1938) dealt with motivation in terms of the operations of deprivation/satiation and aversive stimulation. Later, Keller and Schoenfeld (1950) introduced the term establishing operation to refer to such motivative variables, and Michael (1982, and in press) expanded the Keller and Schoenfeld (1950) concept to include a type of learned motivative variable not explicitly identified in the earlier treatments. The purpose of the present research is the laboratory demonstration of this form of motivation, that Michael referred to as a transitive conditioned establishing operation (CEO).

The present experiment used a treadle-key procedure similar to that of Ailing (1990), but with …

The Effects Of Arousal On Time Perception, J. Keith Cardwell

Dissertations

This study examined the effect of physiological arousal on subjects' time production skills. Time perception is a major element in clinical theories of demandingness and time urgency within the Type A behavior pattern.

Subjects were 94 graduate students, including 67 females and 27 males. They were assigned randomly to three groups: a control group and experimental Groups A and B. All subjects performed 15-, 30-, and 45-second pretest and posttest time production trials. The primary treatment for experimental groups was rapid breathing to increase subjects' heart beat at least 10% above their resting rate. Heart beat was measured by a …

Computer-Based Fluency Training With The Terminology Of Behavior Analysis, Guillermo E. Yaber-Oltra

Dissertations

This study examined the effects of computer-based fluency training on the learning of behavior-analysis terminology. Sixty-nine undergraduates studied the definitions of half a set of behavior-analysis terms using a computer program Think Fast (Parsons, 1989), and half using their regular methods. Think Fast training items consisted of typing the words missing from definitions. On seven out of nine post-training quizzes, students were better able to define terms previously studied with the computer program. In a related experiment, volunteers studied half a new set of terms using the computer, either typing or saying the answers. Students mastered the definitions better when …

A Psychoanalytic And Archetypal Examination Of Two Seminal Dreams And Visions Of Ellen G. White, Dennis E. Waite

Dissertations

This study is a psychological examination of the earliest dreams and visions of Ellen G. Harmon (more commonly known by her married name Ellen G. White), a 19th century prophetess and founding leader of the Seventh-day Adventist church. The following two questions were addressed: (1) What effects did Mrs. White’s dreams and visions have upon her resolution of childhood emotional or developmental conflicts? and (2) In what way do Mrs. White’s early religious experiences clarify the role of religious experience in individual psychological and emotional development?

Two dreams and two visions were selected for analysis by two methods of dream …

The Use Of Nonhuman Subjects In Behavior Analysis: A Review Of Jeab Studies, Dylan David Schmorrow

Dissertations

This study examined the use of nonhuman subjects in the Journal of the Experimental Analysis of Behavior, and the level of invasiveness of those studies. The invasiveness level of each study was determined according to the Shapiro and Field (1987) invasiveness rating scale. All studies published from 1958 through 1992 were considered. In addition to rating the individual studies with the invasiveness scale, data were collected concerning the species of the subjects and their number, whether anaesthesia, analgesia, drugs or toxic agents were used, whether surgery took place, levels of deprivation, and if the subjects died.

The findings from this …

The Impact Of Third Party Reimbursement On Occupational Therapy And Vision Rehabilitation Services: A Comparative Case Study, Tiehan Liu

Dissertations

This is a comparative case study of occupational therapy and vision rehabilitation services. The purpose of this study is to describe how environmental forces, especially third party reimbursement, shape occupational therapy in terms of organizational form, setting, procedure of services and documentation process. The study will further examine the current external and internal conditions under which vision rehabilitation professionals may develop third party payment, especially Medicare and Medicaid. Based on environment theories and the experience of occupational therapy, the potential impact of such reimbursement on vision rehabilitation services is discussed.

Three forms of data were used in this study: (1) …

Responses Of Female Therapists To Treating Adult Female Survivors Of Incest, Marcia A. Hollingsworth

Dissertations

How female therapists are affected by the long-term experience of treating adult female survivors was addressed by exploring therapists’ commonly reported affective, cognitive, physical, and imagery responses. The study specifically examined experienced female therapist responses for evidence of vicarious traumatization (McCann & Pearlman, 1990b), a transformation process whereby therapists who treat trauma victims may experience profound psychological effects, including lasting changes in seven basic cognitive schemas. The study’s findings were also considered in relation to four other models of therapist responses to treating incest survivors: burnout, secondary post-traumatic stress disorder (PTSD), traumatic countertransferences, and countertransference responses.

This study employed a …

Family Birth Order And Leadership Behavior Of Public School Principals In Michigan, Larry J. Corbett

Dissertations

The purpose of this study was to identify the leadership behavior patterns of principals of public schools in Michigan as related to family birth order. The 341 elementary, middle, and high school principals chosen in this study were surveyed with a self-administered questionnaire. The questionnaire elicited responses from the principals to attempt to relate family birth order with concern for production and concern for people. Ninety percent of all potential subjects participated in the survey. The survey responses were applied to the Leadership Grid ® (Blake & McCanse, 1991) for comparison.

The t test for independent means was used to …

Rating Intervention Strategies For Overcoming Impediments To Planned Change By Michigan Public School Administrators, Dale Kimball

Dissertations

In this study, Michigan public school principals reported their perceptions regarding differences in the degree to which nine intervention strategies helped to overcome 10 impediments to change that are often encountered by principals. The intervention strategies and impediments to change used in this study were chosen as a result of a content analysis of literature on change.

A two-part pilot study was conducted. In part one, principals were asked for comments regarding the effectiveness of the letter of introduction, clarity of instructions and questionnaire items, and ease and time of completion. In part two, information was gathered to determine whether …

The Effects Of Two Motivational Factors On Accuracy And Persistence For Second Graders, Jesse D. Baker

Dissertations

Promoting and maintaining motivation in elementary students is an ongoing problem. This study hypothesized that (a) feedback has a greater motivational effect on persistence and on accuracy for second graders than does no feedback, and (b) knowledge of results feedback has a greater motivational effect than does pleasant feeling tone feedback. Evidence from the study showed mixed support for the hypotheses.

The study compared two forms of feedback and the absence of feedback. One group received praise in the form of general, positive statements—classified as feeling tone—about their work while completing mathematics computational portions of the second grade 1989 Stanford …

The Importance Of Evaluation Questions In Human Resources Development: Audience Perspectives, Fahad Al-Ruwaished

Dissertations

The purpose of this study was to investigate and explore how the perception and focus of human resources development (HRD) evaluation relates to different audiences and clients, and to make recommendations to individuals and organizations involved in designing, developing, and implementing HRD evaluation. The study used the CIPP (Context, Input, Process, and Product) evaluation model to operationally define the kinds of evaluation questions as dependent variables. The study independent variable was the organizational role, operationally defined as simulated HRD audiences, i.e., CEOs, managers, trainers, and trainees.

The ' human resources evaluation questionnaire (HREQ) was developed by the researcher to measure …

A Comparison Of Strategic Decision Task Variable Analysis Between School And Business Executives, Peter A. Behnke

Dissertations

The purpose of this study was to examine the differences between school and business executives when making strategic decisions through a comparison of task variable analysis skills. The hypothesis for the study was: After reading a case study describing a strategic decision- making situation, business executives will have more correct responses than school executives on an author written evaluation instrument. The evaluation instrument was designed to measure the subjects' analysis skills of 10 different decision-making task variables.

Thirty Wisconsin school district superintendents and 30 business executives were randomly selected to participate in the study. The results indicated that the difference …

The Identification And Validation Of Sociopsycholinguistic Strategies For Integrating Reading And Writing At The Postsecondary Level, Gail L. Landberg

Dissertations

The purpose of this study was to identify a common set of strategies as determined by two panels of experts (practitioners and theorists), which reflected a sociopsycholinguistic teaching model integrating reading and writing processes on the postsecondary level.

At the present time approximately 30% of the students entering college have some type of skill need, and tertiary institutions have been compelled to admit this type of developmental student to survive financially. Higher education has responded to this crisis by providing developmental programs to assist students in improving their basic skills.

Despite the fact that recent educational research on language acquisition …

The Relationship Between Communication Skills Of First Line Nurse Managers And Stability, Sherry A. Blair

Dissertations

The relationship between communication styles of nurse managers and stability of the registered nurses in their respective departments was investigated. A random sample of first-line nurse managers (N = 83) in 10 hospitals in lower Michigan were surveyed. The communication style of the first-line nurse manager was determined by the Professional Communication Inventory (Pfaff & Busch, 1990). Stability was reported by participants through the use of an inventory designed by the researcher. Data analysis did not reveal any relationships between a managers' communication skills and the stability of registered nurses in their unit(s).

Caring For Dementing And Nondementing Chronically Ill Elderly In Belgium: Modeling Salutogenic And Pathogenic Processes, Timothy John Gallagher

Dissertations

The predominant model in the study of stress and disease has been identified as the pathogenic orientation. The underlying assumption of this orientation is that stress is, by nature, disease causing. An alternative model is the salutogenic orientation (Antonovsky, 1979). Researchers using the salutogenic approach are concerned with explaining the origins of health. In the present study, a sample of Flemish caregivers {N = 126) to persons with chronic dementing and nondementing disorders is examined in order to detail how sense of coherence (a measure of personality disposition), the nature of patient pathology, demographic characteristics, coping resources, and perceived negative …

Requisite Managerial Leadership Behaviors: A Diagnostic Role-Set Study Of Executives Within A Fortune 500 Corporation, Prudence Labeach Pollard

Dissertations

This study examined the extent to which executives' perceptions of their managerial leadership behaviors compare to their role-set's perceptions of the same behaviors. Additionally, the difference between the perceptions was related to the identified requisite executive skills and behaviors. Executives and their role-set were informed of the developmental purpose for which they were making the ratings. An executive's role-set is comprised of superior, peers, and subordinates, who spend significant amounts of time with the executive and are best able to observe the executive's behavior.

The Management Skills Profile (MSP) was used to investigate self and each role-set group's ratings of …

Distances Associated With Subgraphs And Subdigraphs, Steven John Winters

Dissertations

The defining properties of several important subgraphs and subdigraphs rely on the concept of distance in graphs and digraphs. In this dissertation, we investigate many of these subgraphs and subdigraphs.

In Chapter I, we present some preliminary definitions and examples. In addition, many known results are recalled. We then introduce several new induced subgraphs and subdigraphs.

In Chapter n, we investigate the general structure of the center and periphery of a graph. We introduce two new induced subgraphs of the center along with a new induced subgraph of the periphery of a graph in order to study these structures.

For …

The Job Search Process In Michigan 1990-1991, Zhuoyan Gu

Dissertations

Two statewide general public surveys of non-retired adults conducted in March of 1990 and 1991 were analyzed to examine patterns of job search activity. Primary attention was placed on the 1991 survey. The core questions asked were about preferences for future job search media in terms of the respondents' past job seeking experiences . The general pattern observed was a movement away from the public state employment service towards "informal" contacts. There were, however, important differences in terms of the respondents' age, sex, education, occupation, and prior employment experiences.

Spanish Translation And Validation Of The Daily Stress Inventory, And A Comparison Of The Level Of Stress Experienced By Three Culturally Distinct Hispanic Groups, Senez Rodriguez-Charbonier

Dissertations

High levels of stress in the general population have been found to correlate both with psychological and physical illness. The fast growing Hispanic population in the U.S. is exposed to increased levels of stress associated with a number of situations (e.g., language barriers, and socioeconomic status). There are, however, no validated stress measures applicable to the Hispanic community as a whole.

The purpose of this study was twofold: First, to translate into Spanish the Daily Stress Inventory (DSI) (Brantley & Jones, 1989) and to validate the translation by conducting a correlation study between the the Spanish and the English versions. …

Preferred Motivators For Previously Incarcerated Criminals, Selma R. Massey

Dissertations

The issue of motivators has been studied by a number of researchers and practitioners in education, sociology, and psychology. Many of these studies have linked motivators to behavior (Coffey, 1987; Coleman, 1987; Gellerman, 1963; Gould & Sigall, 1977). Questions remain, however, as to which motivators are viewed by actors themselves as the most preferred influencers of behavior. The primary objective of the research was to compare the rank order of the most frequently cited motivators identified in research studies and the rank order of the most preferred motivators as perceived by previously incarcerated criminal respondents. A secondary objective was to …