Digital Commons Network^™

Vasectomy: A Literature Review With Implications For Pre-Vasectomy Counseling, Annette Thrift Wing

Retrospective Theses and Dissertations

No abstract provided.

Continuous Statistical Distribution Curve Fitting And Analysis Tool, Gerald Robie

Retrospective Theses and Dissertations

This paper reports on the implementation and utilization of a micro-computer based simulation modeling verification and validation tool. The interactive software tool, written in BASIC, computes and displays the frequency distribution of a given set of input data, computes appropriate parameters for a continuous statistical distribution which the user selects as likely to represent the population from which the input data sample was obtained, performs several goodness-of-fit analyses on the resultant distribution and provides sensitivity analysis capability on the input data, distribution type selection and distribution parameters.

Implementation Of A Parallel Ynet Architecture, Julie Nadeau Leblanc

Retrospective Theses and Dissertations

A simulation of an alternate implementation of a redundant busing network based on the Teradata Ynet architecture is presented. An overview of the Teradata DBC/1012 data base parallel processing computer including the Ynet, an active logic busing network, is given. Other multiprocessor busing networks are examined and compared to the standard Ynet and the alternate Ynet.

In the standard Ynet system, two networks, called Ynets, process message packets concurrently. When one of the Ynet paths fails, the system is reset. The remaining Ynet path restarts using the previously interrupted packets and processing continues without the aid of the failed Ynet. …

Seasonal Variation In Serum Testosterone Of Immature Sea Turtles In Central Florida, Lawrence K. Luepschen

Retrospective Theses and Dissertations

A yearlong hormonal study of immature populations of loggerhead turtles (Caretta caretta) and green turtles (Chelonia mydas) inhabiting the Indian River in Central Florida, USA, provided information about the relationship between serum testosterone levels and life history habits. By use of a specific radioimmunoassay, testosterone levels of both species were found to remain constant throughout the year with only a slight increase in the warmer months. Adrenal production of steroids in response to stress does not contribute significantly to overall testosterone levels may be reduced for turtles held in captivity. Testosterone levels indicate that the sex ratios of both species …

Experimental Verification Of Laser Speckle Power Spectral Density, Christopher T. Chiles

Retrospective Theses and Dissertations

The dependence of laser speckle power spectral density on the autocorrelation of the aperture pupil function was verified using a charge injection device (CID) camera. Speckle patterns acquired by the CID array were processed to compute the power spectral density (PSD). Three aperture shapes were studied. There was good agreement between the theoretical and experimental power spectral density shapes, and the cutoff frequencies agreed within five percent error.

Bias Optimization For Noise Reduction In Focal Plane Arrays, Kirk B. Reiff

Retrospective Theses and Dissertations

A gain enhanced common gate transresistance circuit is typically used as the coupling circuit between detector and multiplexer in a focal plane array. At an operating temperature of 77 degrees Kelvin, the dominant noises in the system are shot noise and 1/f noise. The 1/f noise corner frequency of the CMOS amplifiers used in focal plane arrays can .be as high as 10 kHz. In this paper it is shown that the 1/f noise corner frequency contributed to the system noise by the amplifier is a function of the bias voltage applied to the photodiode detector. Specifically, as the reverse …

Compensation For Gain Nonuniformity And Nonlinearity In Hgcdte Infrared Charge-Coupled-Device Focal Planes, Glenn D. Boreman, Christopher Costanzo

Faculty Bibliography 1980s

Infrared CCD arrays generally require a compensation for the effect of gain and offset variation among the individual detectors of the array. Linear compensation techniques do not suffice for focal planes that exhibit a large nonlinearity of response combined with order-of-magnitude variations in threshold and saturation flux levels. This situation is common among hybrid architecture CCDs, particularly when HgCdTe is the detector material. This paper reports on a multipoint piecewise-linear correction scheme employed on a HgCdTe infrared CCD focal plane. This technique allows a compensated response to be obtained in a computationally efficient manner. An experimental relationship between the number …

Doppler-Free Polarization Spectroscopy Of The B1-Pi-U-X1-Sigma-G+ Band System Of K-2, J. Heinze, U. Schühle, F. Engelke, C. D. Caldwell

Faculty Bibliography 1980s

No abstract provided.

Person Perception And The Employment Interview: The Impact Of Facial Features In The Employee Selection Process, Susan C. Muller

Retrospective Theses and Dissertations

Previous research has found that the structural makeup of the face influences the manner by which individuals perceive others and attribute characteristics to them. In addition, support has been provided for the hypothesis that nonverbal cues significantly influence an interviewer's perception of a job candidate and the pending hiring decision. Taken together, this study hypothesized that the nonverbal cues emitted from the structural makeup of the face would impact the decision to hire and the perceptions of the job applicant's personality. It was also expected that variations in facial structure would influence an employer's decision in hiring the applicant for …

Marksmanship Performance With The M16a1 Rifle As A Function Of Physical Fitness, Heart Rate, And Exercise Intensity, Jeffrey B. Cuddeback

Retrospective Theses and Dissertations

Fifty-two rifle naïve navy personnel underwent four days of simulated M16A1 live fire training in an artificial intelligent test bed trainer, followed by one day of live fire record qualification in the field. Prior to test bed training, subjects were administered the Army Physical Readiness Test (APRT) and assessed on their current level of physical fitness. At the end of test bed training the subjects participated in one of four exercise conditions (control, walk, job, or run) designed to elevate their hart rates. Immediately following exercise they shot a 10 round self-paced task at a scaled 250 meter target. Analysis …

The Effects Of Locus Control Upon Pay Satisfaction, Richard A. Curle

Retrospective Theses and Dissertations

The issue of pay satisfaction is of increasing concern to management because of today's high cost of recruiting and training employees. Also of concern to management is the impact that a high employee turnover rate, due to pay dissatisfaction, can have on organizational effectiveness. Therefore, identifying the causes of, and reducing the probability of, employee pay dissatisfaction is desirable.

Evaluation Of Concrete Pavement Performance With Related Cracking And/Or Voids Under I-10 Concrete Pavement, Cecil R. Henderson

Retrospective Theses and Dissertations

Under existing concrete highway payments there are voids that develop because of the pumping action of the slabs. The presence of free water, curled slabs from temperature and moisture gradients, and heavy wheel loads combine to provide this problem. The result is pumping and erosion of the base material, nonuniform support of the pavement slab, and eventual breakup of the concrete slabs. Two methods of voids detection were utilized in this study to compare one against the other. The first method used the Falling Weight Deflectometer (FWD) and the second method used the Ground Penetrating Radar (GPR) unit. Deflection readings …

Applications Of Simulation And Animation In Facilities Planning And Design, William Joseph Mattingly

Retrospective Theses and Dissertations

Recent developments of simulation software have made computer simulation and animation popular system problem-solving techniques. One field that has many potential applications for computer simulation and animation is in the area of facilities planning and design. The purpose of this paper is to provide the facilities planner with information to assist in determining when, why, how and what simulation software should be implemented to solve facilities planning and design problems. Also, the usefulness of simulation and animation to the facilities planner is evaluated and areas for improving software for future application in facilities planning and design are identified. TO assist …

A Rapid Acquisition Technique For Direct Sequence Spread Spectrum Systems By A Pn Phase Multiplexed Correlator, Greg S. Rawlins

Retrospective Theses and Dissertations

With the proliferation of direct sequence spread spectrum (DSSS) systems in the communications arena, synchronization techniques that offer improved performance and higher speed are of great value to the spread spectrum designer and user. Matched filter approaches have gained momentum in recent years due to SAW filter technology, while sliding correlators have experienced slower development. This paper introduces a unique multi-phase correlator intended to decrease the mean time to acquire synchronization by exploiting properties of Gold codes and other pseudo-noise (PN) sequences. These properties are used to create a novel signal structure for the local correlator. A brief explanation of …

Implementing Path Control, English Motion Commands And Off Line Programming On Minimover-5 Robot, Mark S. Chen

Retrospective Theses and Dissertations

According to Alan L. Porter and Frederick A. Rossini (1987), 50,000 robots are expected to be installed by year 2000. This increasing number of robots to be used in industry has lead to the need for skilled robot operators and programmers. However, to train this specific class of personnel using an industrial robot as a training tool can be expensive and dangerous due to the possibility of robot accidents. Therefore, in order to provide a safe, inexpensive, and effective training tool, the use of the Mini-Mover-5 educational robot is proposed. The MiniMover-5 has only a primitive programming capability. A use-friendly …

Analysis Of Flexible Pavement On The Basis Of Deflection Basins, Dinesh M. Kamath

Retrospective Theses and Dissertations

The pavement at research park called Research Parkway and Discovery Drive was found Deteriorated within two years of the construction. The need to evaluate the extent of the damage and the estimate of remaining life of pavement initiate the research study. The analysis presented in this report is based on the measurements of the surface deflections and the layered elastic theory. The life expectancy of the pavement can be estimated by the amount of pavement deflection developed within the pavement system. The parameters used in the analysis are the applied load, material of the pavement components and environmental effects. Trial …

Applications Of Artificial Intelligence In Military Training Simulation, Igor V. Golovcsenko

Retrospective Theses and Dissertations

This report is a survey of Artificial Intelligence (AI) technology contributions to military training. It provides an overview of military training simulation and a review of instructional problems and challenges which can be addressed by AI. The survey includes current as well as potential applications of AI, with particular emphasis on design and system integration issues. Applications include knowledge and skills training in strategic planning and decision making, tactical warfare operations, electronics maintenance and repair, as well as computer-aided design of training systems. The report describes research contributions in the application of AI technology to the training world, and it …

Selling The Stereotype: Sexist, Ageist, And Racist Typecasting In Network Television Advertising In 1986, Helen S. Becker

Retrospective Theses and Dissertations

No abstract provided.

Analysis Of Immune Enhancing Effects Of Interleukin-2, Sharareh Sazesh

Retrospective Theses and Dissertations

The effectiveness of IL-2 in the enhancement of immune responses in B6-AKR and normal B6 mice was investigated. In vivo treatment of chimeras with murine IL-2 partially restored PFC responses of their splenocytes to SRBC. This treatment suppressed splenocytes IL-2 production in chimeras. In vivo treatment of chimeras with rhIL-2 resulted in a slight enhancement of mitogenic responses to Con-A. This treatment had no significant effect on mitogenic responses to PHA. The rhIL-2 treatment did not result in suppression of IL-2 production by chimeric splenocytes. Recombinant human IL-2 enhanced mitogenic responses of normal B6 and chimeric mice to PHA in …

Real Time Signal Processing Using Systolic Arrays, Jack Boulay

Retrospective Theses and Dissertations

This thesis discusses and presents the design of systolic arrays used in modern real time signal processing. A methodology to map a given algorithm into a systolized VLSI implementation is described. The architectural alternatives for a given signal processing algorithm are discussed and investigated at a function level using a simulation package that has been developed using the “C” programming language. The similarities and differences between wavefront array processors and systolic array processors are presented.

Versatile Gasdynamics Computer Program For One-Dimensional Isentropic Rayleigh And Fanno Flows, Robert Kenneth Smith

Retrospective Theses and Dissertations

The purpose of this research report is to discuss the development and results of a computer program (GASDYNAMICS) that solves a variety of compressible one-dimensional (1-D) steady gas dynamics problems utilizing the algebraic equations that result from the governing differential equations assuming perfect gas condition. This report shows how the governing differential equations that are derived from the ideal gas law, the definition of Mach number and the fundamental conservation laws of mass, energy, and momentum can be developed into their algebraic forms when additional simplifying assumptions are made.

GASDYNAMICS solves problems for either a converging or a converging –diverging …

Motion And Intrusion Detection Using A Pyroelectric Detector, Randy R. Fields

Retrospective Theses and Dissertations

The purpose of this paper is to describe a device that passively detects the presence of a warm-bodied object in a specified area. The detecting device used is a pyroelectric detector with an integral optical filter. By focusing infrared radiation generated by the object onto the detector, the resulting temperature change is converted to a voltage and then amplified. Modulation of the incoming radiation is accomplished by a rotating disk whose speed of rotation is dynamically controlled by a microprocessor. The resulting detector response is filtered and converted to a DC level. The signal is then passed through an analog-to-digital …

Diffraction Modelling For Saw Devices On Anisotropic Substrates, Melanie A. Roberts

Retrospective Theses and Dissertations

This thesis presents two approaches to solving the diffraction problem for SAW devices on anisotropic substrates. Diffraction is a nonlinear second-order effect which alters SAW performance, and some of the difficulty in predicting the actual effect is the anisotropy of acoustic materials, which makes the Fresnel Integral solution non-trivial. An accurate model for diffraction effects will allow compensation to be made without iterations in expensive and time consuming fabrication and testing processes, especially since it is difficult to isolate diffraction from other second-order effects. Of the two methods of modelling, one is a Fresnel Integral evaluation approach, and the other …

Remote Data Acquisition And Error Analysis Of The Scattering Parameters Of Quartz Crystal Devices, Sallie Layton Douglas

Retrospective Theses and Dissertations

A two-port device can be described by the incident and reflected voltages at each port. The parameters used in this description are known as scattering parameters. Accurate measurement of the values are thus important in device evaluation and network design. Limitations arise with the measurement capability of the equipment. In order to reduce these limitations, the data acquisition is controlled remotely by a computer program. The program also offers an error correction analysis of the measurement results. The measurement setup and basic approach are discussed as well as the techniques of normalization and calibration of each scattering parameter. The computer …

Design And Analysis Of A Voice Band Qpsk Modem, John F. Doud

Retrospective Theses and Dissertations

The objective of this paper is to design and construct a modem using the Quadrature Phase Shift Key digital modulation technique. The modem is designed to transmit information over a telephone line at the rate of 1200 bits per second subject to noise and imperfect channel response in the form of magnitude and delay distortion. The device is constructed using CMOS logic to minimize power consumption. To analyze the design with respect to the above constraints, it was necessary to build a pseudorandom bit sequence generator and correlator, a variable magnitude white noise generator and a digital error detector/indicator.

Two Point Resolution Of A Defocused Multi-Aperture System Eyelet, Steven A. Marlow

Retrospective Theses and Dissertations

Multi-aperture optical systems based on the insect eye offer an alternative to the common optical system based on the human eye. Some of the advantages of a multi - aperture system include the ability to perform parallel processing, have super resolution and have available large amounts of system redundancy.

An individual eyelet of a multi-aperture system consists of a gradient index lens coupled to optical fibers which transfer the incident light on the lens to individual detectors.

A mathematical model of an individual eyelet was developed. It is a flexible model allowing various system parameters to vary. Computer based algorithms …

The Piper, The Animals, And The Hustler, Patti P. Gillespie

Association for Communication Administration Bulletin

This article analyzes the economic and ideological transformations confronting higher education during the Reagan era and their implications for academic independence. It identifies three interrelated developments: the increasing dependence of universities on corporate funding, the widening salary disparities among faculty, and the evolution of the department chair into a fund-raising administrator. The discussion warns that emerging partnerships between universities, government, and private industry threaten to form a “military-industrial-educational complex,” compromising scholarly autonomy and reshaping curricula toward corporate priorities. Faculty marketization, driven by differential utility to corporate sponsors, is shown to exacerbate internal inequities and distort academic values. Finally, the paper …

The Rights Of Part-Time And Temporary Theatre Faculty, Joe Filippo

Association for Communication Administration Bulletin

This article critically examines the working conditions and institutional treatment of part-time and temporary theatre faculty in higher education. Drawing on practical examples from departmental experience, the discussion identifies pervasive inequities in pay, benefits, job security, and professional recognition. It argues that adjunct instructors—often highly qualified and essential to departmental operations—are constrained by structural hierarchies that deny them access to institutional resources, decision-making privileges, and equitable workloads. The analysis highlights how such disparities perpetuate a two-tier faculty system, eroding morale and academic cohesion. Specific issues include inadequate office space, exclusion from faculty governance, limited access to secretarial or developmental support, …

A Prognosis For The Field Of Communication, Erwin P. Bettinghaus

Association for Communication Administration Bulletin

This essay presents an optimistic evaluation of the communication discipline, arguing that the field’s institutional growth, intellectual diversification, and expanding public visibility signal long-term vitality. Evidence of strength includes increased student enrollment across subfields, greater institutional funding, steady employment opportunities, growing recognition by industry and government, and a maturing research culture that has moved beyond foundational definitional debates. Nonetheless, the analysis identifies several risks: declining graduate student recruitment due to market competition, internal fragmentation following departmental reorganization, and ideological polarization between professional and theoretical approaches. The forecast anticipates continued growth driven by technological innovation, heightened demand for communication teachers, and …

Ideas In Education, Volume 4 Number 1, Spring 1987, University Of Central Florida. College Of Education

Research Activities & Annual Reports

Volume 4 Number 1, Spring 1987 issue of Ideas in Education. It covers articles and abstracts of dissertations by faculty members and graduate students of the UCF College of Education.