Engineering Commons^™

On-Line Microprocessor Control Of Optical Disc Recorders And Players, Howard Luebcke

Retrospective Theses and Dissertations

The goal of this paper is to document the work performed in the development of the software required to operate a video disc player and recorder in the on-line mode using a portable computer. Applications of video disc systems are discussed as are future improvements to the developed system.

This paper also includes a description of the hardware, functional requirements and design of the software, and the end result of the development of the software in the form of program listings.

Electromagnetic Scattering From Stacked Gratings, Pok K. Kwan

Retrospective Theses and Dissertations

The theory of scattering matrices and microwave network analysis are employed to solve the problem of scattering from cascaded infinite periodic gratings. The total reflection and transmission coefficients are calculated as functions of angle of incidence, wire spacing for each grating, grating separation, wire thickness, and number of gratings that comprise the cascaded structure. Moreover, the problem of stacking dielectric slabs with periodic gratings is formulated and solved. In all cases, the Secant Corrector Spectral Iteration approach is used as a numerical method for calculating the desired currents and fields.

Finally, calculated values of the reflection and transmission coefficients are …

Pulse Width Modulated Adaptive Delta Modem Design And Analysis, Gregory L. Milne

Retrospective Theses and Dissertations

A unique design of a voiceband adaptive delta modem will be presented. The modulator utilizes a constant amplitude variable width pulse combined with the principles of delta modulation. This results in a modem that has lower amplitude distortion, requires less transmission channel bandwidth, and is less prone to slope overload than conventional adaptive delta modems. The design also allows the use of a simple single integration demodulator while maintaining fidelity.

The modem design and analysis is presented assuming a transmission channel which is bandwidth limited and amplitude limited.

Dynamic Systems Analysis Of A Vehicle Suspension System, Bruce M. Skeldon

Retrospective Theses and Dissertations

This research report deals with one system in a Computer Aided Instruction package in the Dynamic Systems and Control Theory fields for the college undergraduate students. It uses the computer to numerically solve the two degree of freedom equations of motion for a vehicle suspension system. Numerical solutions to the system differential equations are used to drive an animated display of the vehicle’s motion (vertical displacement and rotation about the center of gravity) on the video display terminal.

The Integration Of Computer Graphics With Video Disc Technology: An Application In Training, Fereidon Torkzadeh

Retrospective Theses and Dissertations

The major objective of the work outlined in this paper is to become familiar with the MOVIE.BYU graphic system from Brigham Young University to demonstrate its use in the generation of non real-time images for a typical pilot training application. The implementation is done by using the MOVIE.BYU graphics system, a VAX 11/750 digital computer, and RAMTEK 9460 system. This paper discusses how the images can be stored a frame at a time on a video disc for playback at the normal rate to portray a moving scene using a Panasonic video disc recorder and player, and a Sony video …

A Theoretical Evaluation Of Water Surface Changes In A Circular Reservoir, Hossein G. Tehrani

Retrospective Theses and Dissertations

The purpose of this project is primarily to develop an equation to estimate the time that it will take for the water surface to decrease to another depth in an inverted conical-shaped reservoir behind an earth dam by means of the falling head permeability concept. This equation can be applied to the earth embankment either with or without underdrain. Since the derived equation for time span is a complicated and tedious matter, a computer program has been developed for solving this equation.

The computer program is written in BASIC language and executed on a Tektronix 4051 microcomputer. Primary effort has …

The Effect Of Detention Period On The Clarification Efficiency Of Nitrified Activated Sludge, James C. Boyd

Retrospective Theses and Dissertations

Proper performance of the final clarifier in the activated sludge process is vital to total system efficiency. Inadequate clarification can adversely affect substrate removal efficiency due to the biochemical oxygen demand exerted by solids lost in the clarifier effluent. Detention period is one factor which influences clarification performance and thus is of interest to the designer engineer. Also of interest is the relationship between detention period and rising sludge conditions in the clarifier, which can lead to a deterioration in clarification efficiency. Rising Sludge conditions are believed to be caused by the denitrification of nitrified activated sludge in the final …

Phase-Locked Loop Based Oscillator Phase Noise Measurement Technique, Luis M. Jimenez

Retrospective Theses and Dissertations

Oscillators play an important role in the performance of various radio frequency (RF) systems. The generation of stable carrier and clock frequencies is necessary at both the transmitter and receiver ends of a communication system. Phase noise is the parameter used to characterize an oscillator frequency stability. This thesis introduces a phase noise measurement technique using a phase-locked loop. A 100 MHz Colpitt’s oscillator, for the phase noise source, was designed and built. The output of the oscillator was mixed down to 10 MHz, before a phase-locked loop extracted the phase noise information. Measurements were taken at RF frequencies using …

Optimizing Scanning Mirror System Performance Using Solid State Piezoelectric Actuators, Thomas J. Tomasetti

Retrospective Theses and Dissertations

The purpose of this thesis is to design a scanning mirror system using piezoelectric actuators. A dual-cantilevered bimorph electromechanical coupling is presented, which maximizes the amount of angular deflection possible with an applied field. Two types of feedback methods are employed: rate sensing, which provides resonance damping, and position sensing for increased bandwidth and decreased hysteresis. A prototype system, including the actuator and feedback mechanisms, is developed. Its performance compares favorably with its model and is capable of plus and minus five degrees of angular deflection with a bandwidth of 300 Hertz.

Home Water Testing, Joseph L. Taraba, Tom Ilvento, Linda Heaton, Bob Herbst, Grant Thomas, Dwight Crum

Agricultural Engineering Extension Updates

Routine testing for a few of the most common contaminants is highly recommended. Even if you currently have a safe, pure water supply, regular testing can be valuable because it establishes a record of water quality. This record can be helpful in solving any future problems and in obtaining compensation if someone damages your water supply. Testing needs to be performed by certified testing laboratory using USEPA methods of collection, storage and testing. Unbiased testing needs to be established and has more validity in court proceedings to establish responsibility.

Home Treatment Devices Listing Organizations, Joseph L. Taraba

Agricultural Engineering Extension Updates

Today there is a need for consumer information to assess the multitude of drinking water treatment devices for home use as well as related private drinking water services. There are several organizations that have conducted or conduct on a continuing basis testing of water treatment devices and water treatment services.

Certified Water Well Drillers, College Of Agriculture, University Of Kentucky

Agricultural Engineering Extension Updates

Kentucky statute and regulations now require water well drillers to be certified. Farmstead wells and stock wells are exempt except when a farmstead well is used for irrigation or domestic water supply. Since animal consumption wells are covered there is some confusion regarding stock wells. The Kentucky Division of Water strongly recommends that all wells, regardless of use, be drilled and constructed by a certified driller.

Master Of Science In Computer Based-Learning, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Traffic Accident Rates In Kentucky (1984), Kenneth R. Agent

Kentucky Transportation Center Research Report

Average accident rates, using 1984 accident data only as well as combined 1980 through 1984 data, were calculated for Kentucky highways. Comparison of 1984 to combined 1980 through 1983 rates show the rates have remained stable. There was an increase in total accidents and total accident rate in 1984 compared to 1980 through 1983 data while there was a decrease in the fatal accident rate. Several methods of classifying highways were used when calculating average rates. Those rates may be used in the high-accident location identification program. Average and critical numbers of accidents also were determined for use in the …

The Development Of Speech Research Tools On Mit's Lisp Machine-Based Workstations, D. Scott Cyphers, Robert H. Kassel, David H. Kaufman, Hong C. Leung, Mark A. Randolph, Stephanie Seneff, John E. Unverferth Iii, Timothy Wilson, Victor W. Zue

Publications

In recent years, a number of useful speech- and language-related research tools have been under development at MIT. These tools are aids for efficiently analyzing the acoustic characteristics of speech and the phonological properties of a language. They are playing a valuable role in our own research, as well as in research conducted elsewhere. This paper describes several of the systems being developed for use on our Lisp Machine workstations.

Accidents Types Des Monteurs De Lignes Du Secteur De La Construction (Annexe), Évelyne Kedl, Lucie Laflamme, Lyne Marinacci

Rapports de recherche scientifique

La première phase du projet dont il est ici question vise à résumer, en un nombre limité d’accidents types, les circonstances dans lesquelles les monteurs de lignes se blessent le plus souvent et les caractéristiques les plus courantes de leurs lésions. À cette fin, les fichiers "pairés" d’accidents des trois entrepreneurs participants et de la CESST ont servi à décrire 236 accidents en utilisant un total de 15 variables. Le traitement de ces données, rétrospectives, a conduit à la reconstruction de six classes d’accidents différentes les unes des autres.

Ces classes se distinguent d’abord par le genre de l’accident. Nos …

Accidents Types Des Monteurs De Lignes Du Secteur De La Construction, Évelyne Kedl, Lucie Laflamme, Lyne Marinacci

Rapports de recherche scientifique

La première phase du projet dont il est ici question vise à résumer, en un nombre limité d’accidents types, les circonstances dans lesquelles les monteurs de lignes se blessent le plus souvent et les caractéristiques les plus courantes de leurs lésions. À cette fin, les fichiers "pairés" d’accidents des trois entrepreneurs participants et de la CESST ont servi à décrire 236 accidents en utilisant un total de 15 variables. Le traitement de ces données, rétrospectives, a conduit à la reconstruction de six classes d’accidents différentes les unes des autres.

Ces classes se distinguent d’abord par le genre de l’accident. Nos …

An Algorithm For Resource Allocation Requiring Low Overhead Communication, Ann Marks

Computer Science Technical Reports

A heuristic algorithm for allocating resource units to sites in a distributed system is presented. Starting with a given allocation of sites, the algorithm performs a series of optimizations involving pairs of sites in an attempt to improve the worst pair-wise imbalance present in the system; termination occurs when no further improvement is possible. After outlining the general form of the algorithm, which effectively defines an entire family of algorithms, we present theoretical results that speak to the performance of the algorithm as measured in the number of optimizations that can be done, the amount of control communication required and …

Finding Largest Empty Circles With Location Constraints, L Paul Chew, Robert L. Scot Drysdale

Computer Science Technical Reports

Let S be a set of n points in the plane and let CH(S) represent the convex hull of S. The Largest Empty Circle (LEC) problem is the problem of finding the largest circle centered with CH(S) such that no point of S lies within the circle. Shamos and Hoey (SH75) outlined an algorithm for solving this problem in time O(n log n) by first computing the Voronoi diagram, V(S), in time O(n log n), then using V(S) and CH(S) to compute the largest empty circle in time O(n). In a recent paper [Tou83], Toussaint pointed out some problems with …

Producing Software Using Tools In A Workstation Environment, Mark Sherman, Robert L. Scot Drysdale

Computer Science Technical Reports

We discuss how we taught students to build and use translation, interpretive, editing and monitoring tools in an undergraduate software engineering course. Students used the tools on low-cost workstations (Macintoshes) to build large, group projects. The students' projects used all available features of workstation environments, including graphics, windows, fonts, mice, networks, and sound generators. We found that 1) the use of tools increased student productivity, 2) a shift in a data structure and algorithm topics is needed to cover material relevant for workstation environments, 3) new topics in system design are required for a workstation environment, 4) traditional material can …

The Pairwise Intersection Problem For Monotone Polygons, David B. Levine

Computer Science Technical Reports

Geometric intersection problems arise in a number of areas of computer science including graphics and VLSI design rule checking. Previous work has concentrated on solving the pairwise intersection problem for line segments and iso-oriented rectangles. This thesis extends that work by presenting efficient algorithms to solve the pairwise intersection problem for monotone polygons. For general segments, the problem has been solved in O(N+I)*logN) time using a sweeping line technique, where N is the number of segments and I is the number of intersections reported. We combine this technique with approaches taken to solve the iso-oriented rectangle problem to yield an …

Catastrophic Damage From Dam Break Floods, L. Douglas Jemes, Al-Hassan Sumani, Melanie L. Bengston

Reports

No abstract provided.

A Generalized Slope Stability Computer Program: User’S Guide For Hopk-I, Tommy C. Hopkins

Kentucky Transportation Center Research Report

Data entry and operation of a generalized slope stability computer program are described. The computer program is based on a new approach to formulating and solving the slope stability equilibrium equations. The moment equation as well as the horizontal and vertical equilibrium equations are considered in the model. The purpose of the study was to implement the new approach. The computer program may be used to compute the factor of safety of slip surfaces of arbitrary shape and circular slip surfaces. Effective stress and total stress conditions may be analyzed. Four options are available for computing pore pressures. Both piezometric …

Workshop On Roadway And Street Drainage, Ronald D. Hughes, David L. Allen

Kentucky Transportation Center Research Report

No abstract provided.

Quinoline Sorption To Subsurface Materials: Role Of Ph And Retention Of The Organic Cation, John M. Zachara, Calvin Alnsworth, Larry Felice, Charles Resch

United States Department of Energy: Publications

The sorption of quinoline (pK_a = 4.94) was investigated on low-organic-carbon subsurface materials that varied in pH. Sorption isotherms were measured from 10^-7 to 10^-4 M quinoline and were found to be nonlinear. The resulting Freundlich constants (K_F), based on total aqueous quinoline concentration, were poorly correlated with subsoil properties, including organic carbon. Higher sorption in the acidic subsoils and favorable coefficents for regression of K_F, normalized to cation-exchange capacity vs. the ionization fraction (Q), point to the importance of ion exchange of the protonated compound. When the subsoil pH …

Gavins Point Dam, South Dakota, To Ponca State Park, Nebraska

United States Army Corps of Engineers, Omaha District

The purpose of this document is to supplement the General Design Memorandum MRR-1 for development of a public recreation facility and access to the Missouri National Recreational River at Myron Grove Game Production Area.  The tract identified in the GDM has not been acquired.  The project consists of an access road, parking, turnaround, boat ramp, boat dock, night light and vault toilet facilities at a total cost of $59,233.

Master Of Science In Computer-Based Learning With Specialization Areas In Adult Education, Electronic Education, Training And Learning 1986-87, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Department Of Computer Science Master Of Science Computer Science 1986-1988, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Computer-Based Graduate Programs In Computer Education 1986-87 Catalog, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Doctor Of Science In Computer Science 1986-88 Catalog, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.