Digital Commons Network^™

The Ucf Report, Vol. 06 No. 22, January 18, 1984, University Of Central Florida

The UCF Report

Did you leave headlights on?; IR/WUCF join to host open house; UCF slates three writing workshops; UCF gears up to train managers for Florida's hospitality industry; Credit Union takes two more holidays.

Central Florida Future, Vol. 16 No. 15, January 13, 1984

Central Florida Future

Former presidents to review SG; Enrollment could drop this term; Photo of students waiting in line during add-drop to add courses; Future wins ACP award fourth time; Students may pay more for health center fee next year; Photo of students waiting in line to purchase textbooks at the Bookstore; Future Senate notebook: Senate to tackle drinking age and Proposition I; Bill calls for candidates to run on ticket system; Freeze kills plants, damages water lines; Chandler halts drive to recall Geary; Some schools trying the computer business; UCF professor studies space blahs; PACBOY (A paid supplement by the Program & …

The Ucf Report, Vol. 06 No. 21, January 11, 1984, University Of Central Florida

The UCF Report

'83 brings Foundation record $2.25 million; Speakers tell graduates: Continue learning and stay in Central Florida; $150,000 donated by UCF grad; TV executive says media shared concern for education's future; M.L. King celebration Jan. 13-14; 'Eagle Lady' speaks to Women's Club; O'Leary tribute at UCF on Sunday.

First Citizens And Other Florida Folks: Essays On Florida Folklife., Foreman, Ronald, 1928-

Florida Heritage

Consists of essays on Florida folklore and folklore studies.

Processing Of Thin Film Devices, Ramzi Delpak

Retrospective Theses and Dissertations

The ability to do thin film processing has been established at UCF. This paper describes the facilities available. RF and DC sputtering was used for material deposition. The parameters for both were established experimentally, and the results are presented. Resistor and capacitor test patterns were used to test the accuracy of the system. The devices were fabricated and tested; experimental results are discussed.

Stormwater Detention Systems With Effluent Filtration, Linda M. Van De Graaff

Retrospective Theses and Dissertations

The growing concern for water quality enhancement of our surface waters has led to changes in detention facility design. Providing a filter media for the effluent water to travel through before discharge into the environment has become an area of interest. Thus, detention facilities may be used for both water quality and quantity control. Different soil medias were studied for the potential of pollutant removal and infiltration rates usable in design work. Both laboratory and field experimentation were performed. A computer program was also developed to model stormwater movement through a swale detention system. This research was performed to examine …

Display To Camera Calibration Techniques, Philip Gatt

Retrospective Theses and Dissertations

In today's technology, with digitally controlled optic sensing devices, there exists a need for a fast and accurate calibration procedure. Typical display devices and optic fiber bundles are plagued with inaccuracies. There are many sources of error such as delay, time constants, pixel distortion, pixel bleeding, and noise. The calibration procedure must measure these inaccuracies, and compute a set of correction factors. These correction factors are then used in real time to alter the command data, such that the intended pixels are correctly commanded. This paper discusses a calibration procedure, which employs a special matrix inverse algorithm. This algorithm, which …

Non-Iterative Finite Impulse Response Design Techniques, Carlton D. Bishop

Retrospective Theses and Dissertations

A general, non-iterative design technique for low shapefactor, transversal filters is presented. This design approach uses two cosine series to specify appropriate eigenfunctions. An infinite set of such eigenfunctions are defined and the method for choosing the coefficients is discussed.

The total filter response is specified as the product of two individual frequency responses. The impulse response of each is then determined by applying the superposition of appropriate eigenfunctions. The criteria for choosing the appropriate eigenfunctions is discussed.

A synthesis procedure for designing surface acoustic wave filters is presented. The effects of truncating the impulse response are also explored. A …

The Frequency Response Computation Of H(Z) Models That Include Digital Error Effects, Carol R. Smith

Retrospective Theses and Dissertations

Pulse responses are not suitable for evaluating H(z) frequency responses that include digital errors. Digital error effects, however, are conveniently included in H(z) frequency response calculations based on the step response. A non-real time algorithm for computing the frequency response of a real time digital filters based on the filter step response is developed and verified through an example.

Wastewater Characterization And Treatability For Aneastern Coal Slurry, Mark J. Flint

Retrospective Theses and Dissertations

A complete wastewater characterization study was performed on an eastern Kentucky coal slurry after a 10-day circulation period in a 40 foot (12.2 m) pilot-scale pipeline. The resulting wastewater was settled and decanted for additional lime and alum treatability studies. Easter coal slurries were characterized by high TDS, conductivity, sulfates and iron. Significant concentrations of a number of trace metals were also found; however, organics were very low. Wastewater quality varied considerably among several experiments and was presumed to be influenced by different properties of the coal and the addition of a corrosion inhibitor. The major treatment concern was removal …

A 'User-Friendly' Robot Operator Training Aid, Donald A. Washburn

Retrospective Theses and Dissertations

There will be an increasing demand for robot operators, since more companies are using robots in production and material handling. In order to train these would-be operators, a 'user-friendly' robot operator training aid was developed. This aid helps the trainee learn how to program a robot using on-line programming, and the trainee also obtains valuable hands-on experience. Since this training aid is user-friendly and has safety features, it requires little or no previous experience with robots or computers and minimal supervision. With this training, the would-be operators will acquire a basic understanding of how they can apply this experience to …

Gain Control Of A Time-Varying Signal Using A Multiplaying Dac, Yassin Movassaghi

Retrospective Theses and Dissertations

The design of a high speed circuit accepting a bipolar analog signal with a 3 db bandwidth of 20 MHZ and an eight bit unipolar gain control signal is presented in this thesis. The system produces the product of these two signals at a rate of one digital byte every 25 nsec. At the heart of the system are two multiplying digital to analog converters (DACs) operating in parallel. The circuit design was based on a statistically validated model for a multiplying DAC. This circuit could be used for controlling the intensity of each picture element (i.e. pixel) for many …

Transformation Of Nitrogen In Highway Runoff Management Systems, Robert D. Tolbert

Retrospective Theses and Dissertations

The operation and maintenance of highways contributes a variety of pollutants to surface and subsurface waters. Solids, heavy metals, nutrients, oil and grease, pesticides and bacteria can all be associated with highway runoff. Although the full extent of the effect of all of these runoff constituents upon the quality of surrounding waters is not well defined, this study will mainly concentrate on nutrient contaminants (essentially nitrogen). The last decade has seen increasing efforts in research and development to abate contaminant discharges from highway runoff using a number of treatment facilities such as retention/detention basins, swales and wetland systems. An evaluation …

Biotoxicity Of Highway Runoff Metals To Gambusia, John M. Bateman

Retrospective Theses and Dissertations

A research study was conducted to examine the relationship between speciation of heavy metals (Zn, Cd, Pb, Cu) and their biotoxicity. Therefore, static bioassay experiments were designed to determine LC-50 values for those metals on mosquitofish, Gambusia affinis. The standard bioassay scheme consisted of twelve 16-liter all-glass aquaria that provided duplicates of five different metal concentrations and a control for each run. Deionized tap water and filtered retention/detention water from Maitland Pond were used for bioassays. The effects of various physiochemical parameters such as pH, alkalinity, hardness and organic complexation on metal toxicity were determined. Also, synergistic and antagonistic effects …

A Microcomputer Controlled Contouring Machine, Kripaker K. Punja

Retrospective Theses and Dissertations

An Apple microcomputer and a three axis milling machine are the basis for a CAD/CAM system with the capability of drilling and contour milling operations. The milling machine axes are driven by three stepper motors under the control of the Apple microcomputer and the ISAAC data acquisition module. An interactive part design program using high resolution color graphics has been developed. It employs lines, circles and points to define the geometry for the part. The design is entered at the CRT and stored as a CAM database on the user disc. Once the design is complete it is postprocessed and …

Investigation And Evaluation Of Random Number Generators For Digital Implementation, Ylberto V. Ruiz

Retrospective Theses and Dissertations

The continuous improvement in the speed of digital components in conjunction with reduction of size has brought about a revolutionary age of microprocessors. Mathematical functions, which at one time could only be implemented by complex analog circuitry, can now be easily implemented via microprocessors and high density digital components. Principles of random number generation must be understood in order to implement pseudo-random algorithms in a digital random frequency generator (DRFG) design. Chapter 1 is a discussion of several types of random number algorithms which have been used in the past and outlines the deficiencies and advantages associated with each individual …

Computer Simulation Of Cross Correlators For Correlated Inputs, Linda J. Coulter

Retrospective Theses and Dissertations

Cross correlator systems, analog and clipped input channels, with correlated random narrow band Gaussian noise as inputs are computer simulated. The performance of each system is evaluated on the basis of the output signal-to-noise ratio. The output SNR of each system is compared with theoretical asymptotic approximations computed as a function of the SNR of the input channels. The output of the simulation compares within 3 dB of the asymptotic approximations for the analog correlator for all values of the correlation coefficient tested and for the systems with clipped input channels with uncorrelated inputs. For the systems with clipped input …

Digital Hearing Aids, Somsak Deawsurintr

Retrospective Theses and Dissertations

This paper describes the design of a hearing aid using digital techniques. The Amplitude Compression Amplifier and Digital Filter are discussed. General review of different filter types are presented as background for the design of Digital Filters. The design procedure for Digital Filters and the software program for the Intel-2920 signal processor are created. Finally, the program is tested by simulation via the 2920-Simulator.

The Use Of Computers In Construction Management, Joella S. Francois

Retrospective Theses and Dissertations

A study on the use of computers for the management of construction projects has been conducted. The findings of this study will be presented here and will consist of: 1. An examination of the different utilization of computers in the field of construction management. 2. An analysis of the methodology of some well known computer software packages used by many construction companies. 3. A complete documentation of computer codes that have been developed a. to illustrate the use of computer graphics for an effective utilization of some construction management techniques such as the bar chart b. to solve the problem …

A Non-Contact Technique For Direct Strain Measurement Using Laser Speckle Spectral Density, Reza M. Sheikhrezai

Retrospective Theses and Dissertations

When an optically rough surface is illuminated by laser, a grainy pattern is produced at a distance away from the surface, which is known as laser speckle pattern. This pattern is random in intensity with its grains separated by an average amount controlled by the intermediate optical system or the diameter of the illuminated area of the surface in absence of an optical system. It has been shown that the grain spacing of such pattern may be correlated to yield a singly-peaked power spectral density of an intensity ensemble which is found by spatial ensemble averages. This correlation holds only …

Millimeter Wave Scattering From A Rough Surface, Charles H. Hargraves

Retrospective Theses and Dissertations

This thesis presents an introduction to rough surface scattering and describes techniques that were used during the course of this project to measure and characterize electromagnetic scattering from a rough surface. An analytical model is described that accurately predicts the statistics of the measured scattering data. The CW measurement process that was used is described and scattering measurement results are presented. Calculated and measured statistical moments are compared in order to show agreement of measurements with various statistical scattering models. Recommendations for additional work in the area of measurement and analytical modeling of rough surface scattering are given.

The Combination Of Artificial Intelligence And Robotics For A Mobile Robot Application, Leslie D. Interrante

Retrospective Theses and Dissertations

The combination of artificial intelligence and robotics led to more flexibility and powerful mobile robot applications. The robot and its environment were simulated with a microcomputer to gather statistical information. An application was demonstrated in the laboratory with a mobile robot. The robot recognized an obstacle in its path and generated the necessary changes in its environment so that it could successfully complete a required task.

Pilot Study Of Applicability Of A Generic Microprocessor Assembly Language, Joseph H. Bartlett

Retrospective Theses and Dissertations

The purpose of this investigation is to research the utility of a standardized generic microprocessor assembly language. More precisely, use of a generic language implementation on a given microprocessor and its effect on programmer productivity will be investigated. Programmer productivity will be scored in terms of an inverse function of the time taken to complete a programming task correctly. Shorter times imply better programmer productivity and longer times imply the opposite

The Development Of An Automated Production System, Brian M. Cardinal

Retrospective Theses and Dissertations

This paper describes the development of an automated production system recently completed by the Martin Marietta Aerospace Division, Orlando, Florida, for the assembly, inspection and test of printed circuit boards. The project began in January 1981 with the purpose of increasing the then existing production capability and to create the building block for the total automation of the printed circuit board assembly area of the plant in Ocala, Florida. The system was implemented using a combination of off the shelf equipment modified and integrated to create a single production system. The system employs much of the new production philosophies tailored …

A Comparison Of The Subtests Of The Gesell School Readiness Screening Test As Predictors Of Reading Achievement, Dolores W. Sapp

Retrospective Theses and Dissertations

The major purpose of this study was to determine which subtests of the Gesell School Readiness Screening Test are the best predictors of reading achievement. The procedure used was a stepwise multiple regression to determine which subtests were the best predictors of achievement for each reading section of the Comprehensive Test of Basic Skills. Seventy-two students from four schools were evaluated for this study. Three testing instruments were administered to these students. They were the Gesell test, the Otis-Lennon test, and the reading subtests of the Comprehensive Test of Basic Skills. The Gesell test consisted of eight subtests: Cubes, Name, …

An Evaluation Of The Involvement Component Of The Educational Planning And Resource Management System (Eprms) In The Orange County Florida Schools, Michael E. Mekdeci

Retrospective Theses and Dissertations

The purpose of the study was to determine if the Educational Planning and Resource Management System (EPRMS), implemented by the Orange County Public Schools, increased parent and/or teacher involvement and communication in the school level decision making process. The study surveyed parents, teachers, and principals about their perception of the communication and involvement at their school during 1982-83 and 1983-84 (the year EPRMS was fully implemented). It was assumed that any increase in communication and/or involvement would be due to the Educational Planning and Resource Management System. A questionnaire was developed after an extensive literature review and input by a …

Geotechnical Investigation Of In-Lake Sediment Treatment For Megginnis Arm Of Lake Jackson, Tallahassee, Florida, Richard L. Johnson

Retrospective Theses and Dissertations

Megginnis Arm of Lake Jackson in Tallahassee, Florida, has experienced rapid eutrophication as a result of development within the contributing area watershed. Bottom sediments were sampled for purposes of mapping, classifying and designating for removal. Sediment desiccation studies were performed to determine the percent of consolidation and sealing characteristics of the soils in the event of a lake drawdown. Restoration alternatives are presented and compared on the basis of field investigations, laboratory testing and analysis, and the desiccation study. Alternative methods are discussed with respect to the cost, the flexibility and the problems inherent in the different proposals. From the …

Image Analysis And Segmentation Based On The Circular Pipeline Video Processor, Jon M. Albritton

Retrospective Theses and Dissertations

Visual inspection of printed circuit boards has generally depended on human inspectors. However, a system has been developed which allows for automated visual inspection using robotics and modern image processing techniques. This paper first introduces automatic visual inspection processes, overviews the Automatic Board Assembly, Inspection and Test (ABAIT) system, reviews image processing concepts and describes the Circular Pipeline Video Processor (CPVP). Image data from the CPVP is analyzed and an investigation into alternate segmentation algorithms to identify circuit board features is presented. The relative performance of these algorithms is compared conclusions drawn.

Effects Of Finite Length Registers On A Modified Directform Realization Of A High Order H(Z) Transfer Function, Angel Vanrell

Retrospective Theses and Dissertations

When a digital process is realized on a general-purpose computer or a special-purpose hardware, errors due to finite register length are introduced. These errors are due primarily to arithmetic roundoff, coefficient quantization, and scaling rules. This paper addresses the effects of finite word length on a direct-form implementation of a high order H (z) transfer function. The development and analysis of a modified direct-form realization suggested by Dr. Fred O. Simons, are carried out via FORTRAN emulation of a fourth-order low-pass Butterworth filter. The results are presented as a parametric tradeoff of signal-to-noise ratio at the filter output versus word …

A Two Part Research Report: Aromatic Nucelophilic Fluoroal Koxylation Via Cationic Phase Transfer Catalysis And Reactions Of Unsymmetrical Vinamidinium Salts With Organometallic Reagents, Joseph E. Coury

Retrospective Theses and Dissertations

This report discusses research which was conducted in two areas: the study of aromatic nucleophilic fluoroalkoxylation assisted via cationic phase transfer catalysis and the study of unsymmetrical vinamidinium salts and their reactions with organometallic reagents.

Sodium alkoxides have been successfully used to fluoroalkoxylate activated halo- aryl and heteroaryl substrates under phase transfer catalysis conditions. Optimum reaction conditions incorporated tetra-n-butyl-phosphonium bromide as the catalyst and refluxing toluene as the solvent medium. Different quarternary phosphonium and arrmonium salts have been evaluated as catalysts: also, the effects of activating groups, leaving groups, and nucleophiles have been reported.

The reaction of 3-dimethylamino-3-phenyl-prop-2-en-l-ylidendimethyliminium perchlorate with …