Digital Commons Network^™

Gapp Instruction Simulator, Ronald P. Bauman

Retrospective Theses and Dissertations

A need was recognized for the development of a hardware independent simulator for the Geometric Arithmetic Parallel Processor, or GAPP. This simulator would allow the user to test algorithms targeted to GAPP systems using readily available personnel computers. The development of the simulation, a GAPP Instruction Simulator, or GIS, is the basis of this research report. This report includes a discussion of earlier parallel processors of similar type to the GAPP, a discussion of the GAPP's operation and instructions, and illustrations of GAPP applications. The report focuses on the GAPP Instruction Simulator with a discussion of its operation and a …

Uniform Energy Discharge For Pulsed Lasers, Eric Calvin Koschmann

Retrospective Theses and Dissertations

The art of achieving a large energy discharge in a controlled manner with relative ease is to use a pulse forming network. Historically the design of such networks generally used a single inductor and capacitor. Although easy to design and implement, this practice does not provide optimum performance in all cases. In particular, most laser welding requires a uniform energy discharge in a pulse to produce a high quality weld. Analysis has shown that when the pulse forming network approximates a lumped constant transmission line a maximum flat pulse is produced with minimal degradation of the pulse rise time. This …

Toward An Annotated Catalog For Use In Communication Research, Gabe H. Kaimowitz

Retrospective Theses and Dissertations

No abstract provided.

Differential Employee Performance: A Behavioral Addition To An Attitudinal Model Of Turnover, Thomas E. Powell

Retrospective Theses and Dissertations

No abstract provided.

Operational Analysis Of Duties Of Florida Elementary School Secretary As Perceived By Secretaries, Principals And Teachers, James Lynwood Mosley

Retrospective Theses and Dissertations

Information was collected from principals, secretaries and teachers regarding their perceptions of the elementary schoo l secretary's role. Participants· were from three central Florida counties. The instrument for data collection was a survey form consisting of secretarial duties/responsibilities/attributes gleaned from a variety of sources. Participants' perceptions were tallied by means of a modified Li kert Scale. Tallied responses were analyzed statistically in comparison to six null hypotheses which were proposed. Three statistical procedures were employed in the data analysis. These procedures consisted of: (1) analysis of variance, (2) chi-square goodness of fit, and (3) Pearson Product Moment correlation. The .05 …

Gatekeeping And Coorientation, Do They Mix?: / A Three-Way Analysis Of A Business Journal, Sheryl Anne Tumlin

Retrospective Theses and Dissertations

No abstract provided.

A Cellular Algorithm For Data Reduction Of Polygon Based Images, Robert James Caesar

Retrospective Theses and Dissertations

ABSTRACT The amount of information contained in an image is often much more than is necessary. Computer generated images will always be constrained by the computer's resources or the time allowed for generation. To reduce the quantity of data in a picture while preserving its apparent quality can require complex filtering of the image data. This paper presents an algorithm for reducing data in polygon based images, using different filtering techniques that take advantage of a priori knowledge as to the images' content. One technique uses a novel implementation of vertex elimination. By passing the image through a sequence of …

Leader Sex And Task Orientation: An Information Processing Perspective, Thomas Arthur Buhr

Retrospective Theses and Dissertations

The role of leadership and its effect on small group function and efficiency has led to a wealth of research data. Of particular importance to the real world outside the laboratory and the classroom are the leadership variables of sex and task orientation. In the last two decades, women have assumed more leadership positions in the business and political world than at any other time in the past (White, De Sanctis & Crino, 1981). In addition, there has been a call to examine the many different ways a leader can approach the group to accomplish a task (Fiedler, 1978). Two …

Utilization Of Ambulatory Services By The Health Maintenance Organization Of Florida, Thomas Harold Hansen

Retrospective Theses and Dissertations

The utilization of ambulatory services by the health maintenance organization of Florida (HMO), independent practice association (IPA) model, was compared to a fee-for-service population. Each randomly selected group consisted of 250 patients being cared for by the same providers, at the same clinic, during the calendar year 1986. Demographic and clinical data was gathered from the office charts. Frequencies were evaluated by the Statistical Package for the Social Sciences and t-tests were run to substantiate variance at the 0.05 level of confidence. The HMO group is a younger population (t = 0.017), and the males are responsible for the increased …

On K - Y - Insensitive Donimation, Teresa Haynes Rice

Retrospective Theses and Dissertations

A connected graph G is defined to be k-1-insensitive if the domination number 1(G) is unchanged when an arbitrary set of k edges is removed. The problem has been solved fork= 1. This Ph.D. dissertation focuses on finding extremal k-1-insensitive graphs on p nodes, fork~ 2. A graph is extremal if it has the minimum number of edges. Two subproblems are considered. The first, which has been solved completely, specifies that the same set of nodes dominates each graph obtained from G by removing k edges. The second requires only that the graph G be connected. This is a much …

Significant Measurements Of A Multiple Target Tracking System Utilizing Munkre's Algorithm As A Correlation Scheme, Nathalie Anna Day

Retrospective Theses and Dissertations

This thesis presents and discusses the principles of multiple target tracking. A simulation written in Turbo Pascal provides the results of using a modified version of Munkre's algorithm for correlating targets with observations. The number and types of measurements necessary to obtain acceptable results are examined. The measurements under scrutiny are range, range rate, azimuth angle and elevation angle. A track-while-scan system is assumed and the nearest neighbor correlation scheme as well as rectangular gating are used for association.

A Case Study In Rumor Transmission Based On The Leo Frank Case, George Mark Jackson

Retrospective Theses and Dissertations

The purpose of this study was to examine the process of rumor transmission in an historical context. The basis was a case study of the Leo Frank incident. The editorials of Populist editor Tom Watson, written during Frank's appeal and commutation, were tested for emotional intensity. Significant findings tended to support the anxiety component of the Rosnow/Fine model for rumor transmission. The study was limited as there was no control condition without anxiety.

Effect Of Visual Reminder On The Ttr And Mlu-W Of Oral Hearing-Impaired Students During High/Scope Recall Sessions, Joan S. Kissel

Retrospective Theses and Dissertations

Language samples of sixteen oral hearing-impaired students, aged 3.8 to 10.6 years with a mean SRT average of 27dB, were taken during High/Scope recall sessions under two conditions: with visual reminder (a videotape replay of their session work-time) or without visual reminder (no videotape replay of their work-time). These language samples, taken over a three month period, were analyzed with SALT (Systematic Analysis of Language Transcripts) for flexibility (using TTR) and structure (using MLU-W), and for five other SALT analyses. In each of the seven SALT analyses, improvement was shown for both groups with a trend for greater improvement shown …

Women And Men : Do They Prefer Different Leaders?, Melanie A. B. Lee

Retrospective Theses and Dissertations

A sample of 13 female and 16 male managers from five different businesses completed modified versions of the Hersey/Blanchard Leader Behavior Analysis (LBA) questionnaires. The questionnaires consisted of 20 business-setting scenarios in which a leader must take some action. The managers were asked to choose the action that best described what their 11 ideal" leaders would do in each of the particular situations. The results confirmed the study's hypothesis that the 11 ideal 11 leader descriptions would not differ for the female and male managers. Subordinates of the sample managers completed 11 0ther 11 versions of the LBA, in which …

Development Of Techniques To Perform Simulation-Adaptation In A Simulation Training Environment Using Expert System Methods, Cheryl E. Bagshaw

Retrospective Theses and Dissertations

The use of computers for instructional purposes is steadily increasing, along with an emphasis on developing systems which create environments tailored to human beings. Artificial Intelligence techniques have been incorporated into these systems with an aim at developing better methods of modeling of simulating knowledge and intelligent behavior. One type of these systems, Intelligent Simulation Training Systems (ISTS), utilize a simulation in the training process. This is an ideal environment for the instruction of skills which focus on the ability to understand the time and space relationships of objects.

An intelligent tutor module of an ISTS must configure scenarios for …

Finite Impulse Response Filter Design Using Cosine Series Functions, Carlton Delos Bishop

Retrospective Theses and Dissertations

Window functions have been extensively used for the design of SAW filters. The classical truncated cosine series functions, such as the Hamming and Blackmann functions, are only a few of an infinite set of such functions. The derivation of this set of functions from orthonormal basis sets and the criteria for obtaining the constant coefficients of the functions are presented. These functions are very useful because of the closed-form expressions and their easily recognizable Fourier transform. Another approach to the design of Gaussian shaped filters having a desired sidelobe level using a 40 term cosine series will be presented as …

Design Of A Bandpass Oculometer, Karin Brandauer

Retrospective Theses and Dissertations

A passive oculometer is a device that measures the position of the eye by utilizing the corneo-retinal potential (CRP) generated by the eye. In this thesis, the Bandpass Oculometer replaces the joystick of a personal computer, allowing the viewer to use a computer simply by moving his eyes. Low frequency noise, present in all electronic circuits, produces an offset from the reference point, the center of the screen. In previous lowpass oculometry studies at University of Central Florida, this offset caused the cursor to drift toward the edge of the field of view within a period of 30 seconds, decreasing …

Continuous Time Convolution Model For Generation Synthetic Hydrographs, Cheryl Brooks

Retrospective Theses and Dissertations

Synthetic hydrographs are often used in stormwater management to provide estimates of peak rate, volume and time distribution of stormwater runoff. A hydrograph model based on the mathematical technique of convolution was developed using an exponential routing response function and the basic watershed continuity equation. After incorporating the model into a computer program, it was calibrated using hydrographs from four urban and three rural watersheds. The watersheds are located in regions of west and south Florida and range in size from 14.7 to 3500 acres. Two other hydrograph models, the Soil Conservation Service's Unit Hydrograph (SCS-UH) mode 1 and the …

Inoculation Theory: Motivation Mechanism Vs. Attack Credibility As Mediators Of Resistance To Persuasion, Peter F. Cranis

Retrospective Theses and Dissertations

No abstract provided.

Alcoholism Subspecies And Their Relationship To Cigarette And Caffeine Consumption, John F. Crawley

Retrospective Theses and Dissertations

The relationships between types of alcoholism and cigarette and caffeine consumption were studies using the classification system of Reactive and Essential Alcoholism. The subjects were 155 Alcoholics Anonymous members. Information was collected on a number of population demographics including gender, religious preference, length of sobriety, educational level, and ethnic group membership. A correlational design was used and the data collection technique was a self-administered questionnaire. Hypotheses under study were: (1) Essential Alcoholics are more likely to be high frequency cigarette smokers than Reactive Alcoholics; (2) Essential Alcoholics are more likely to be high frequency caffeine consumers than Reactive Alcoholics. No …

Pathological Gambling: A Comprehensive Review, Victoria L. Crowder

Retrospective Theses and Dissertations

No abstract provided.

The Composing Process And Speech Communication An Examination Of The Strategies Of Six Successful Student Speakers, Susan M. Andersen

Retrospective Theses and Dissertations

Speech is a process, yet studies in human communication generally examine speech as a product. Rather than studying the decisions employed in the construction and reception of messages, most research in speech focuses upon evaluating communication products. This study represents an effort to build communication theory within a different paradigmatic perspective, employing ethnographic interview method for the purpose of generating theory.

The purpose of this study was to examine the composing processes of six successful student speakers as they prepared formal public speeches. The specific strategies and methods employed were found to vary among these students and to deviate significantly …

The Feasibility Of Computerized Cognitive Testing As A Surrogate Measure For Assessment Center Performance, Leilani M. De Saram

Retrospective Theses and Dissertations

The use of microcomputerized cognitive testing of personnel has thus far been limited to military and environmental stressor applications. The investigation of such testing as a substitute for assessment center performance represents a novel application of this technology. An examination of the relationship between performance on a cognitive test battery and assessment center performance was conducted.

A battery of selected microcomputerized tests measuring cognitive constructs was administered to assessment center candidates in law enforcement occupations. Contrary to expectations, the computerized cognitive measurements did not exhibit significant correlations with assessment center performance measures. It was speculated that the two measures assessed …

Mrp, Jit, And Opt: A Comparison On The Production Floor, Donna M. Denicole Christopher

Retrospective Theses and Dissertations

In order to compete in manufacturing, industry realizes it must work more efficiently with its resources. Three manufacturing techniques have been developed to assist industry in this challenge --MRP, JIT, and OPT. This paper compares these three techniques. It concentrates on the factors that affect production after vendor materials are in-house. A brief discussion of some of the implementation difficulties a company may face during the transition to a new philosophy is also addressed. Finally, a case study of a low volume, highly technical military project is evaluated and analyzed.

Boundary Layer On A Continuous Flat Plate In Parallel Flow With Similar And Non-Similar Boundary Conditions, Vaughn H.M. Faber

Retrospective Theses and Dissertations

This thesis is a computational analysis of the incompressible laminar boundary layer on a continuous moving surface. The skin friction and heat transfer variations on a moving plate with similar and non-similar (constant) mass transfer at the wall are obtained for 210 cases for the similar boundary solution and 60 cases for the non-similar solution.

Both cases were solved numerically using the fourth order Runge-Kutta algorithm. For the non-similarity case, the local non-similarity method as described by Sparrow, Quack and Boerner was used. The analysis shows that the shear stress for both the similar and non-similar cases is higher when …

Phase Noise Analysis And Basic Measuring Techniques, James A. Ferrell

Retrospective Theses and Dissertations

Oscillators are important elements of RF and microwave communications systems. The increased use of the electromagnetic spectrum requires the use of better and cleaner oscillators. Local oscillators in RF to IF converters play a big role in the overall performance of the receiver systems because phase noise in the local oscillator can drastically reduce the signal to noise ratio at the output of the receiver, especially if the converter is at the front end. Phase noise is the parameter used to describe oscillator stability. The analysis and basic measurement techniques of phase noise are performed in this report.

This research …

Generating Multiple User Interfaces For Multiple Application Domains, Mahesh Hassomal Dodani

Retrospective Theses and Dissertations

This Ph.D. dissertation presents a classification scheme for User Interface Development Environments (UIDEs) based on the multiplicity of user interfaces and application domains that can be supported. The SISD, SIMD and MISD [S= Single, I= user Interface(s), M= Multiple, D= application Domain(s)] generator classes encompass most of the UIDEs described in the literature. A major goal of this research is to allow any user to develop a personalized interface for any interactive application, that is, the development of an MIMD UIDE.

Fundamental to the development of such a UIDE is the complete separation of the user interface component from the …

Optimization Of Storm Sewer Construction Costs Using A Microcomputer Program, Dawn E. Fetter

Retrospective Theses and Dissertations

When designing a storm sewer system there is a material and labor cost trade-off between changing pipe diameter for a specific flowrate while keeping physical pipe slope constant, and changing physical pipe slope for the same flowrate while keeping the pipe diameter constant.

To calculate costs associated with every possible combination of pipe diameters and excavation depth to find the optimum design for a storm sewer network without the use of a computer would be a very cumbersome task indeed. In fact, a minimum cost solution may never be found.

This paper presents a microcomputer program which assists the engineer …

New Synthetic Transformations Of 1-Benzyl, 3,5-Dibromo, 1h-1,2,4-Triazole /C, Adam Michael Fivush

Retrospective Theses and Dissertations

This report details the study of the nucleophilic substitution of 1-benzyl-3,5-dibromo-lH-1,2,4-triazole. A variety of nucleophiles have been studied to date. The nucleophiles studied primarily fall into the categories of Phosphorous, Oxygen and Sul fur species. Some of the initially formed substitution products are thermally unstable and undergo unique rearrangements. The report describes the physical properties, 1H NMR, 13c NMR, IR and Mass spectra for all of the synthesized compounds. Possible mechanistic pathways are presented for the formation of the prepared compounds. Recommendations are made in order to suggest future research opportunities in this area.

Rise Time To Frequency Correlation Of Crosstalk In Coupled Microstrip Lines, Charles Michael Fletcher Jr.

Retrospective Theses and Dissertations

An examination of forward crosstalk in microstrip transmission lines is presented through a computer simulation using SPICE. A non-resistive lumped L-C transmission line model is modified to include capacitive and inductive coupling from adjacent lines. Two adjacent microstrip transmission lines are modeled, and simulation results in both the time and frequency domains are shown. The time domain or transient analysis looks at the effect of rise times on crosstalk. Rise times in the range of 100 to 1000 nanoseconds (ns) are considered. The frequency analysis shows the crosstalk frequency response over the range of 100 to 1600 kilohertz (kHz). The …