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Crossover Of The Spectral Weight Function: A New Interpretation Of Some Neutron-Scattering Data, Lee Chow, David Fisher

Faculty Bibliography 1980s

Dynamic scaling theory proposed by Halperin and Hohenberg has been successfully applied to small-q neutron scattering data in the past. However, recent constant-E-scan neutron scattering data cannot be explained by dynamic scaling theory and a Lorentzian spectral weight function. This seeming contradiction can be removed by a crossover of the spectral weight function from a Lorentzian function to a Gaussian function as q becomes large.

Comments On A Wolf Spider Feeding On A Green Anole Lizard, David T. Corey

Faculty Bibliography 1980s

No abstract provided.

Ground Surface Spiders In 3 Central Florida Plant-Communities, David T. Corey, Walter K. Taylor

Faculty Bibliography 1980s

Ground surface spiders were pitfall-trapped every two months in pond pine, sand pine scrub, and flatwoods plant communities on the University of Central Florida campus near Orlando from May, 1983 to March, 1984. Eight-two species and 2,326 individuals were collected: 57 species and 1,094 individuals in pond pine, 42 species and 851 individuals in sand pine scrub, and 48 species and 381 individuals in flatwoods community. Spider diversity was greatest in pond pine, followed by sand pine scrub, and then flatwoods community. Similarity in spider species was greatest between pond pine and flatwoods, followed by sand pine scrub and flatwoods, …

Impulse-Response Of A Multiaperture Vision System Eyelet, Ron Driggers, Carl Halford, Roy Walters

Faculty Bibliography 1980s

Multiaperture vision systems are of interest in the area of robotic vision. A facsimile of the insect eye may be as useful for transmitting information to robotics as conventional cameras, which are analogous to the human eye. A physical model of one multiaperture vision system, the insect apposition ommatidia, has been successfully constructed. To provide an understanding of the multiaperture vision system, the impulse response of a single eyelet, or ommatidium, was developed. Experimental measurements of the impulse response were found to closely match theoretical results.

Rollins College Winter Term 1988 Addendum, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Rollins College Winter Term 1988, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Automatically Generating Syntax-Directed Editors For Graphical Languages, Farahangiz Arefi

Retrospective Theses and Dissertations

This research is concerned with the automatic generation of syntax-directed editors for graphical programming languages. A specification technique that is used to uniformly define graphical languages along with their syntax-directed editors is developed. The novel aspect of this specification technique, called a general graph transformation system, is that the graphical languages are described by specifying a family of editing operations. In this manner, a language is defined as a dynamic object which, by applying different editing operations, changes from one form to another, each form representing a sentence of the language. In order to demonstrate this process, the language of …

Employee Assistance Programs: The State Of The Art In Central Florida, W. Thomas Oldroyd

Retrospective Theses and Dissertations

A considerable amount of literature has been written on Employee Assistance Programs (EAPs), yet the research to date has not proven the effectiveness of such programs. Due to the confidential nature of EAPs, research data are difficult to find. Many elements make up an EAP. The hypothesis tested during this research is that companies incorporating what are considered by many to be the essential elements of EAPs will have more positive opinions of those elements and will save more money when compared to companies that do not have an EAP. The data were collected over a four-week period from 52 …

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 …

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 …

A Relational Object-Oriented Management System And An Encapsulated Object-Oriented Programming System, Michael L. Nelson

Retrospective Theses and Dissertations

The purpose of the Relational Object-Oriented Management System (ROOMS) is to show that the relational database scheme is a viable approach for storing objectoriented data. ROOMS is designed so that it can be implemented in any object-oriented language with appropriate I/O commands, or added to any objectoriented database management system that allows userdefined collections of data. Various problems were encountered in developing ROOMS. While these problems have been solved, the best solution is to use the Encapsulated Object-Oriented Programming System (EOOPS) . EOOPS is based upon an inheritance scheme which preserves encapsulation. This encapsulated approach avoids the problems associated with …

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 …

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 …

A Study Of The Reaction Kinetics For The Thermal Oxidation Of Dilute N-Heptane Vapors In A Plug Flow Reactor, Steven Hunter Ramsey

Retrospective Theses and Dissertations

During August through October, 1986, experiments were conducted with the aim of devel oping kinetic relationships for the thermal oxi dation of dilute n-Heptane vapors in air using a Lindberg tube furnace reactor. This project was designed to be the first step in the ultimate goal of research ing the effe cts upon the combustion of dilute organic vapors when certain chemicals are added to the combustion stream. These chemicals are postulated to form free radicals and thus enhance the oxidation of organ i cs . Comparison of the kinetics before and after the addition of t he free radical …

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 …

Some Optimally Adaptive Parallel Graph Algorithms On Erew Pram Model, Sajal K. Das

Retrospective Theses and Dissertations

The study of graph algorithms is an important area of research in computer science, since graphs offer useful tools to model many real-world situations. The commercial availability of parallel computers have led to the development of efficient parallel graph algorithms.

Using an exclusive-read and exclusive-write (EREW) parallel random access machine (PRAM) as the computation model with a fixed number of processors, we design and analyze parallel algorithms for seven undirected graph problems, such as, connected components, spanning forest, fundamental cycle set, bridges, bipartiteness, assignment problems, and approximate vertex coloring. For all but the last two problems, the input data structure …

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.

Management Considerations Of Productivity Issues For Local Government, Scott M. Gilbertson

Retrospective Theses and Dissertations

This report examines the issues needed to be addressed by a municipal manager and provides guidelines to follow when establishing a productivity measurement and improvement program. Examined in detail is the relationship of the municipality's quality of service delivery in relationship to productivity. The concerns of productivity in the public sector at the national and local levels are also identified.

Numerous difficulties are encountered when attempting to measure and improve productivity. Many of these difficulties are presented and several are discussed in detail. To overcome the identified difficulties, there are a number of techniques available, some of which are recently …

Comparison Of Subsurface Cavity Investigations Using Earth Resistivity, Seismograph And Ground Penetrating Radar, Dennis M. Filler

Retrospective Theses and Dissertations

Sinkhole formation in the Central Florida area has become a serious problem. The subsurface exploration method for cavity detection is indeed needed prior to sinkhole development. this research study compares the effectiveness of earth resistivity, seismograph and ground penetrating radar (GPR) methods in the detection of subsurface cavities. A resistivity instrument measures a material's resistance to electric currents. The seismograph measure the propagation velocity of a medium refracting compressional waves. The GPR transmits and receives electromagnetic pulses reflecting off subsurface interfaces.

Tests were conducted at two sites: a model test site at the University of central Florida, Orlando, and a …

I. Evaluation Of Iron Whiskers And Stainless Steel Microwaves As Catalysts For Ammonia Synthesis Ii. Hydrodechlorination Of Chloralkanes On Iron Whisker Catalysts, Diane Kaefer-Northcott

Retrospective Theses and Dissertations

This report consists of two parts. Part I concerns the evaluation of stainless steel microwires and iron whiskers, as catalysts for ammonia synthesis. Several comparison catalysts were also evaluated for their catalytic ability for ammonia synthesis. The effect of potassium promotion on filament and comparison catalysts was determined.

Part II concerns the evaluation of iron whisker catalysts with regard to their catalytic ability for their hydroechlorination fo chloroalkanes. The chloroalkanes that were used in the hydroechlorination reactions were carbon tetrachlorida, chloroform, methylene chloride, and 1, 1, 1-trichloroethane. The hydroechlorination reactions were conducted in the gas phase, either in the prsence …

Some Reasons Why New Technologies Are Not Always Successful - Specifically Directed Toward Cim, Shuk Fong Lai

Retrospective Theses and Dissertations

To keep the competitive edge, many companies constantly implement new technologies. However, the implementation of these new technologies are not always successful. Why?

Problems with implementation of new technologies can be either technical or managerial. This paper presents research limited to management problems and suggests the necessary changes. It also outlines the important factors in the decision-making process and the criteria for a successful implementation of a Computer Integrated Manufacturing (CIM) system. Many experts believe that CIM is the ultimate solution to slow and reverse the decline of the U.S. global manufacturing market. However, some companies that have implemented CIM …

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

Retrospective Theses and Dissertations

No abstract provided.

Metalinguistics And Reading Implications For Future Assessment And Management, Valerie Ann Lovegreen

Retrospective Theses and Dissertations

No abstract provided.

The Application Of Transfer Matrices In The Dynamic Analysis Of Planar Elastic Mechanisms, Richard Kent Lindenberg

Retrospective Theses and Dissertations

Transfer matrices are used in the dynamic analysis of planar elastic mechanisms. Mechanism motion is discretized by dividing the motion into a finite number of intervals over which the mechanism is considered to be an instantaneous structure with constant geometry. Transfer matrix methods are then used to calculate the natural frequencies and corresponding mode shapes of the instantaneous structure. A transfer matrix relating the continuous, non-zero components of the state vector across a pin joint is developed. An elastic four bar mechanism and a crank slider mechanism with a rigid crank and elastic connecting rod are analyzed using lumped mass …

A System For Measuring The Phase Difference Between Two Points Of A Propagating Laser Beam, Jefferson E. Odhner

Retrospective Theses and Dissertations

An optical system has been designed, analyzed, implemented, and calibrated which measures the phase difference between two points of a propagating laser beam. The system is a quadrature interferometer whose detector outputs are processed by a computer. This quadrature interferometer measures both the phase and amplitude variations between two points of a laser beam after the beam passes through turbulence . These measurements are in turn processed by a computer to isolate the phase variations from the amplitude variations. Further statistical analysis which can be performed on these phase variations should provide an understanding of the phase fluctuations of propagating …

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

Retrospective Theses and Dissertations

No abstract provided.

A Multivariate Study On The Emotions And Self-Esteem Of Pregnant Women, Patricia K. Teal

Retrospective Theses and Dissertations

This multivariate study investigated the effects of selected psychosocial and demographic variables on the self-esteem and emotional states of pregnant women. Previous studies done pertaining to this subject have tended to be restricted to specific social classes, racial groups, age groups or marital status. The present study expanded previous research by looking at a broader population. Pregnant women in their third trimester (~ = 201) were asked to complete a demographic questionnaire, a Rosenberg Self-Esteem Scale, and a Multiple Affect Adjective Check List. Pearson coefficients indicated that self-esteem scores were positively correlated with positive affect and negatively correlated with anxiety, …

Discrete Mathematics In The Secondary Curriculum A Delphi Study Of Topics And Trends, Ann C. Vining

Retrospective Theses and Dissertations

No abstract provided.

Method For Sizing Mos Transistors For Vlsi, Matthew J. Amatangelo

Retrospective Theses and Dissertations

Determining the device width to length ratios has typically been an iterative process for the custom IC digital design engineer. After the logic design phase is complete for a particular circuit, the designer would make an educated guess at the device sizes. Then by trial and error, using SPICE or another circuit simulator, suitable sizes would be determined. Unfortunately, this approach is time consuming and the resulting sizes are often a good bit larger than they need to be to maintain a certain speed because of the lack of a rigorous sizing methodology. This paper describes a method for reducing …

A Proposed System For Determination Of Percent Cloud Cover, Carol L. Emrich

Retrospective Theses and Dissertations

A method for determining percent cloud cover by taking two consecutive images using different color contrast filters, specifically a red filter and a blue filter, is described. This method (RF/BF estimate) involves dividing the "red" image by the "blue" image, pixel by pixel, and determining the percentage of pixels in the resultant image with intensity values of one. This is the percent cloud cover. The RF/BF estimate is based on the different effects of molecule and particle scattering of electromagnetic waves in the visible portion of the spectrum. These two types of scattering, Rayleigh and Mie scattering respectively, are described …