Digital Commons Network^™

Ipcl1- An Interactive Process Control Language, Richard A. Erlandson

Retrospective Theses and Dissertations

This report documents a Process Control Language. It was written to provide an easy-to-use, user-friendly language to control a manufacturing-type process. It is not assumed the user is proficient or even familiar with any computer languages. The user should be able to grasp the simple set of commands available and begin writing user programs in a short period of time. Emphasis has been placed on error messages to inform the user of the type of error and enough information to correct it. The language was written in PDP-11 assembly language and run on a 11/34 computer in the Microcomputer Laboratory …

The Effect Of Differing Goal Strategies On Subjective And Physiological Indices Of Workload Across Time, Kevin C. Uliano

Retrospective Theses and Dissertations

The purpose of this study was to investigate the effects of differing goal strategies on subjective and physiological indices of workload across time. The sample consisted of 16 males and 24 females from undergraduate psychology classes at the University of Central Florida. Subjects were assigned to four goal conditions: time/accuracy, time, accuracy, and no goal, and asked to perform a computer-based decision making task comparing visual and semantic information. A trial consisted of a 15-minute baseline and three 5-minute task periods. Dependent variables included electromyopotential (EMG) measured in microvolts and a paper and pencil workload scale utilizing a Likert-type format …

Modal Split Alternative To Ucf Using The Urban Transportation Planning Process, Waddah S. Farah

Retrospective Theses and Dissertations

This research evaluated the existing forms of transportation to the University of Central Florida (UCF) and analyzed the feasibility of a mass transportation alternative for the commuting students. During the past twenty years at UCF, the automobile has been the only major means of transportation used by the students and employees. Opinion surveys conducted during 1983 and 1984 indicated that the University commuters are confronted with a number of transportation problems including the high cost of using private automobiles, lack of parking spaces, congestion on roads leading to the University, and the walking time between the parking lots and the …

The Content Of Children's Toy And Food Commercials: Another Look., Dennis G. Ray

Retrospective Theses and Dissertations

No abstract provided.

The Effect Of Managerial Experience On Assessment Center Evaluations: An Application In Law Enforcement, Lonnie E. Griesemer

Retrospective Theses and Dissertations

No abstract provided.

Display Format Development Station, Paul A. Valentine

Retrospective Theses and Dissertations

An interactive Display Format Development Station (DFDS) was created to generate, modify, and document static background graphic displays for use in process control and monitoring environments. The purpose of the system is to organize and simplify the display generation process in order to reduce the costs associated with this activity. A review of the display generation process was done in order to identify the types of graphics constructs needed to generate the graphics display screens. Since the system uses an interactive process to generate the displays, the human interface software was developed to take advantage of various user friendly methods …

The Effect Of Recycle Control On Activated Sludge Clarification Efficiency, Joseph A. Margio

Retrospective Theses and Dissertations

Recent advances in activated sludge facilities operations utilize sludge recycle flow rate control to minimize adverse effects on the clarifier during peak solids loading situations. Although this control action is directed at the thickening function, there has been speculation that the elevated recycle rates may be responsible for an increased effluent solids concentration. To evaluate the significance of recycle rate to the steady-state effluent suspended solids concentration, identical side-by-side settling columns were operated with recycle rates spanning the range of normal practice. The studies were conducted so that each side-by-side unit received identical activated sludge feed slurries. Replicate experimental units …

Survey Of Fiber Optic Connectors And Cables, John B. Ostlund

Retrospective Theses and Dissertations

Today the world of fiber optics is bigger than ever. What is available to the engineer and the technician is now only apparent to the well informed. Not all engineers and technicians have a background or an education in the field of fiber optics. This report is intended to be an informative preliminary guide to those readers whose interest lies in the field of fiber optics.

The advantages of fiber optic systems are discussed and compared to conventional systems. Although a fiber optic system includes transmitters and receivers, this report concentrates primarily on fiber optic connectors and cables. It also …

Breeding Biology Of The Great Crested Flycatcher, Myiarchus Crinitus, (Linnaeus) In Central Florida, Mark A. Kershner

Retrospective Theses and Dissertations

No abstract provided.

Model For A Nonlinear Tank System Under Proportional-Integral-Derivative Control, Charles W. Bishop

Retrospective Theses and Dissertations

A model (NONLINRK) was developed for a closed tank system under feedback control by an ideal proportional-integral-derivative controller. Under servo action the fluid level in the tank is altered from its equilibrium set point. Under regulatory action the feed pressure to the inlet valve and/or the outlet valve percentage opening are varied from equilibrium settings. The numerical model uses Gill’s fourth-order Runge-Kutta algorithm to solve the system equation. The equation was made separable by approximating an exponential factor by the tangent at the beginning of each time step in the numerical solution. NONLINRK simulation trials exhibited many characteristics of linear …

A Computer Graphics Head-Up Display For Air-To-Air And Air-To-Ground Flight Simulation, Daryl R. Mair

Retrospective Theses and Dissertations

A computer graphics simulation of an aircraft Head-Up Display was designed using an RDS-3000 Ikonas Graphics Processor and a PDP-11/34 host computer system. The software control and display modules were accomplished using Ikonas microcode and Digital Equipment Corporation Fortran IV-PLUS. The Head-Up Display system consists of the basic flight data, which includes aerodynamic flight information, Roll/Pitch Ladder, and the Velocity Vector or Flight Path Marker. The system was designed for flexibility in modifications and evaluation of various weapons delivery systems. These will be adapted to specific needs by research scientists and engineers at the Visual Technology Research Simulator in Orlando, …

Design And Analysis Of A 4ghz Low Noise Amplifier, Abdulla I. Al-Rawahy

Retrospective Theses and Dissertations

The Gallium Arsenide Field Effect transistor (GaAs FET) is experiencing a widespread acceptance in space and terrestrial systems due to its low noise, high gain and frequency characteristics unmatched by bipolar devices. This paper describes a design of a 4 GHz low noise amplifier with GaAs FETs using the scattering parameters method. Special attention is given to overall noise/gain optimization in the band of interest. The Smith Chart is used extensively to match the two-port device with microstrip networks. Analysis and performance of the amplifier are presented.

Use Of The Ada Language System In Configuration Control Of Fortran-Based Software, Daniel L. Dyke

Retrospective Theses and Dissertations

The Configuration Control and Management of Trainer Systems Software has been recognized as a significant problem for many years. Many software tools are being developed for use as aids in this task. The efforts of the Department of Defense in the development of Ada and an Ada Programming Support Environment (APSE) have strongly addressed the problems of configuration control and management. However, these efforts have been targeted for Ada-based software as it is anticipated it will be the primary language of the DOD. The author feels that FORTRAN based software will require maintenance for many years even after the acceptance …

An Algorithm For Computing Fast, Accurate, Z-Plane Root Locus Plots, David R. Jahn

Retrospective Theses and Dissertations

Root locus analysis/synthesis is an extremely powerful tool used in classical control system design. Its results can be used to check stability, speed of response, and system damping. However, the solutions to root locus problems can be extremely difficult to obtain in digital control system because the poles are in close proximity. Optimized algorithms will be presented which circumvent this problem and allow for fast, accurate z-plane root locus plots. Prompting for data entry, minimum memory in-place computations, and very little processing requirements yield an easy to use, highly efficient program.

An Investigation Of The Attitudes Of Principals And Superintendents In Florida Toward Merit Pay, Albert W. Helms

Retrospective Theses and Dissertations

The purpose of this study was to determine the attitudes of superintendents and principals in the state of Florida toward the issue of merit pay. The evaluation instrument used for the collection of data was a questionnaire that was developed and validated by Rometo in 1961. For this study, the instrument consisted of 34 statements and four questions related to merit pay.

During the 1983-84 school year, the instrument was mailed to a total of 1,990 educators in the state of Florida. Included in the sample were all 67 district superintendents and 1,923 selected principals. Usable returns were obtained from …

Design Considerations For A Digital Audio Equalizer, Timothy Young

Retrospective Theses and Dissertations

The objective of this thesis is to consider a method for designing a digital audio equalizer. The primary design criteria is minimum audible frequency response error between a digital and a "reference" analog equalizer throughout the entire audio frequency range from 20 Hz to 20 Khz. The first step is to obtain a set of analog filters that suitably represent the reference equalization. From these filters, digital filter coefficients are generated using the bilinear transformation. Then, the digital filters are combined with anti-aliasing and D/A reconstruction filters and a zero-order hold to complete the design. Analysis of methods to minimize …

University Of Central Florida 1985 Self Study Southern Association Of Colleges And Schools : Department Of Medical Technology Self Study Report, University Of Central Florida. Department Of Medical Technology

Self-Studies

University of Central Florida College of Health, Department of Medical Technology 1985 self-study for Southern Association of Colleges and Schools. The study covers philosophy of the university and the college, organizational structure, educational program, financial resources, faculty, library, student development services, physical facilities, special activities, graduate programs, research, summer terms, computers, the Brevard, Daytona and South Orlando Centers programs and media.

Isolation And Characterization Of The Crossreactive Antigenic And Allergenic Components In Callistemon Citrinis And Melaleuca Quinquenervia Pollen By Immunochemical Methods, Brett E. Stanaland

Retrospective Theses and Dissertations

No abstract provided.

Digital Signal Processing Capabilities Of The Fujitsu Mb8764, Harold B. Creech

Retrospective Theses and Dissertations

The Fujitsu MB8764 digital signal processing chip is designed to operate with a machine cycle of up to 10 MHz. The chip’s ability to perform a 16-by-16 bit multiply and add operation in one machine cycle makes it a good candidate for real time digital signal processing. Unlike the Intel 2920 the Fujitsu MB8764 does not have an onboard analog-to-digital, digital-to-analog converter. Therefore, this paper will be restricted to the operation of this device with digital data input and output. The use of the MB8764 as a digital filter is analyzed. Performance limitations due to finite word length, memory size …

Computerized Displacement Data Analysis In Laser Speckle Photography, Bijan Chitsaz

Retrospective Theses and Dissertations

Laser speckle photography is an experimental technique which provides a non-contract means for direct measurement of in-plane displacements of objects subjected to different loading conditions. It requires a camera system to record two images of the object that are illuminated with laser light on a high resolution film. The double-exposure film (specklegram) is a permanent record of the displacement information of the object. Point-by-point analysis of the specklegram will yield the displacement data, but requires considerable time to complete the data reduction. An automated data analysis system is developed and described in this report. He-Ne laser and computer-controlled translation stages …

The Problem Of Publication: A Response, Donald H. Ecroyd

Association for Communication Administration Bulletin

This response essay addresses the increasing pressure on communication faculty to publish in refereed venues as part of tenure and promotion review. It situates publication within a changing academic environment marked by tighter budgets, greater competition for journal space, and heightened scrutiny of scholarly output. Drawing on the perspective of a journal editor, the essay notes that professional journals receive many more submissions than they can publish and that early-career faculty face particular difficulty in securing publication. The essay responds to related discussions of why, what, and how scholars should publish by emphasizing that publishable work must offer scholarly value, …

Theatre History: The Guided Design Approach, Donald A. Borchardt

Association for Communication Administration Bulletin

This article describes the use of the Guided Design instructional method in an undergraduate theatre history course. Guided Design replaces lecture-centered instruction with small-group problem solving, asking students to apply course concepts through open-ended decision-making tasks. The article outlines the method’s origins, its emphasis on knowledge, values, and decision-making, and the instructor’s role in preparing problems, instructions, feedback, learning objectives, and resource materials. A sample theatre history problem asks students to determine when, where, and under what conditions a touring company should perform Aeschylus’ Prometheus Bound, requiring attention to ancient theatre architecture, Greek festivals, staging practices, and questions of authenticity. …

Classroom Climate For Women: The Tip Of The Iceberg, Roberta M. Hall

Association for Communication Administration Bulletin

This article examines the classroom climate experienced by women students in higher education, focusing on subtle and overt patterns of differential treatment that can discourage women’s participation, confidence, and academic development. Drawing on student accounts and findings from The Classroom Climate Project, it identifies behaviors that single out women, such as sexist remarks, comments on appearance, gendered humor, and stereotyped examples, as well as behaviors that overlook women, including interruptions, reduced attention to women’s comments, and assumptions that men are more likely to contribute meaningfully. The article connects these classroom practices to broader patterns in advising, professional preparation, and campus …

Minutes Of The Aca Executive Committee October 31, 1984 Chicago

Association for Communication Administration Bulletin

The annual meeting of the Association for Communication Administration (ACA)'s Executive Committee, held in November 1984 in Chicago, Illinois.

Minutes Of The Aca Business Meeting November 1, 1984 Chicago

Association for Communication Administration Bulletin

The minutes of the business meeting of the Association for Communication Administration (ACA)'s Executive Committee, held in November 1984 in Chicago, Illinois.

From Research Paper To Published Article: A Symposium Introduction, Goodwin F. Berquist

Association for Communication Administration Bulletin

The introduction frames a symposium on the transition from research paper to published article by highlighting the limited publication records of most PhD graduates and the resulting concern for graduate educators and academic administrators. It argues that weak publication outcomes stem less from lack of research capacity than from insufficient guidance on how to publish during early scholarly socialization. The narrative situates faculty development as a central responsibility of communication administration and calls for concrete, procedural information rather than generic exhortations to publish. It then describes a panel at the Central States Speech Association convention in Lincoln, Nebraska, where presenters …

Why Publish?, Goodwin F. Berquist

Association for Communication Administration Bulletin

This article examines why many trained communication scholars fail to convert research projects into published scholarship. It argues that publishing is essential for advancing knowledge, establishing credibility, and participating fully in the academic profession. The article identifies several barriers to scholarly productivity, including lack of awareness about the value of publication, post-degree burnout, heavy teaching and service demands, weak writing preparation, perfectionism, and misunderstanding the difference between graduate coursework and publishable manuscripts. It emphasizes the role of communication administrators, advisors, and senior scholars in helping graduate students and new faculty understand publication expectations and develop practical writing habits. The article …

Publish What?, William R. Brown

Association for Communication Administration Bulletin

This article addresses the question of what kinds of scholarly work are most suitable for publication in communication studies, with particular attention to the needs of young scholars and those who mentor them. It defines publishable scholarship as “news” for the profession: work grounded in genuine intellectual curiosity, connected to significant conversations in the field, and willing to take calculated risks. The article distinguishes between general qualities of newsworthy research and more specific topics for future inquiry. Its proposed research agenda centers on symbolically negotiated patterns in human communication, including perspective-shifting, infinite regress, hypostatizing, cultural enactment, and learning. These topics …

Publish How?, Dennis S. Gouran

Association for Communication Administration Bulletin

This article provides practical guidance on preparing, submitting, and revising scholarly manuscripts for publication in professional journals in communication studies. Written for graduate students, early-career faculty, and administrators involved in faculty development, it identifies the publication process as an important but often neglected part of graduate training. The article outlines key stages of journal submission, including assessing whether a manuscript offers a meaningful contribution, seeking critical feedback before submission, selecting an appropriate publication venue, following journal style requirements, and preparing a professional cover letter. It also cautions against premature submission, simultaneous submission to multiple journals, and inappropriate communication with editors. …

Evaluating Theatre Technology, Silberstein, Frank Silberstein

Association for Communication Administration Bulletin

This article considers how theatre technology and the work of theatre technologists can be evaluated, particularly when assessment is used to judge the professional performance of technical personnel. It distinguishes the theatre technologist from designers, emphasizing the technologist’s role in devising practical means for achieving production effects and solving technical problems. The article argues that evaluation should account for both administrative competence and production outcomes, including scheduling, budgeting, shop organization, paperwork, safety practices, accident records, workmanship, rigging, structural knowledge, and the efficient use of available resources. It also notes the difficulty of assessing theatre technology from outside the production process, …