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Zooplankton Abundance And Diversity In A Hydrilla Infested Central Florida Lake, Don C. Schmitz
Zooplankton Abundance And Diversity In A Hydrilla Infested Central Florida Lake, Don C. Schmitz
Retrospective Theses and Dissertations
Zooplankton abundance, hydrilla biomass, and physicochemical parameters were sampled for one year in a small central Florida lake. Annually, rotifers comprised most of the species collected and were the most abundant zooplankton group. Hydrilla biomass was lowest during winter and spring while orthophosphate and phtoplankton concentrations were highest. Zooplankton densities were highest when hydrilla biomass was low. Small-bodied limnetic herbivores comprised most of the zooplankton during the spring. Zooplanton abundances were lowest during summer and fall and may have been either directly or indirectly related to the hydrilla growth. Factors, such as lower phytoplankton and dissolved oxygen concentrations, possible increased …
An Investigation Of Fabric Filtration For The Removal Of Colloidal Turbidity From A Laboratory Water, David Brent Jansen
An Investigation Of Fabric Filtration For The Removal Of Colloidal Turbidity From A Laboratory Water, David Brent Jansen
Retrospective Theses and Dissertations
A kaolin in tapwater suspension was treated either with alum or one of two cationic polymers. The resulting suspension was filtered through various configurations of felt cloth filters. The kaolin suspension was adjusted to 100 JTU. Treatment by polymer consistently lowered the filtered effluent to less than 1 JTU. Jar tests were utilized to determine optimum coagulant dose for the tests. The formulation of a complete filter cake in the filter appeared to be the determining factor in the efficiency of water clarification by the filter. The literature lacked references to this concept as applied to water supply problems. The …
Smada: Stormwater Management And Design Aid, Timothy M. Curran
Smada: Stormwater Management And Design Aid, Timothy M. Curran
Retrospective Theses and Dissertations
The Stormwater Management and Design Aid (SMADA) is a computer model formulated to assess stormwater runoff quantity and quality. Applicable theory is reviewed to introduce a discussion of the modeling methodology. A pre- vs. post-development design objective can be incorporated to evaluate runoff quantity and quality for single or multiple land use watershed. Detention and retention facilities are considered and conveyance systems for runoff transmission can be sized. Initial design assessments and consistent design review and evaluation are possible. SMADA is written in the BASIC language and is executed in the interactive mode. No computer cards are required and data …
The Effects Of Time And Initial Belief Level On The Restorability Of Beliefs, John Edward Lander
The Effects Of Time And Initial Belief Level On The Restorability Of Beliefs, John Edward Lander
Retrospective Theses and Dissertations
No abstract provided.
Adjustable Low Frequency Servo Compensation Using Operational Amplifiers, Charles P. Partin
Adjustable Low Frequency Servo Compensation Using Operational Amplifiers, Charles P. Partin
Retrospective Theses and Dissertations
This paper defines a variable transfer function that is used to compensate for low frequency structural resonances in a turret so that stabilization of a closed loop servo system can be achieved. Three circuits for implementing this compensation are presented. They are: the feedforward three amplifier biquad, the summing four amplifier biquad, and the single amplifier biquad with pole-zero cancellation. Design equations allowing the engineer to go directly from the given transfer function to the actual component values are developed for each circuit. A comparison of the final circuit designs is also presented.
A Real Time Microprocessor Based Digital Filter Implementation, Mark H. Shaver
A Real Time Microprocessor Based Digital Filter Implementation, Mark H. Shaver
Retrospective Theses and Dissertations
A major break-through in the real-time digital simulation of dynamic models has occurred with the introduction of the Intel 2920 digital signal processing chip. The problems and potentials for this new device are demonstrated by implementing an elliptic function digital low pass filter via the bilinear z-transform approach. The software implementation is presented. Debugging and software verification are accomplished via manufacturer's simulation software tools. The hardware performance is verified in the laboratory. The results of these efforts point to much promise for wide scale applications, however, problems associated with performance indicate early version chip problems.
Chemical Treatment Of Urban Stormwater Runoff By Settling Column Studies, Paul R. Moore
Chemical Treatment Of Urban Stormwater Runoff By Settling Column Studies, Paul R. Moore
Retrospective Theses and Dissertations
Lake Eola, in downtown Orlando, was the subject of extensive research to determine the impact of stormwater runoff to the lake and possible management alternatives. The focus of this research was stormwater treatment by chemical coagulation followed by detention. Phosphorus was the main parameter targeted for removal. Various chemical parameters were also evaluated included: TSS, VSS, NVSS, COD, TKN, NH3, TOC, TP, Ca, As, Cd, Cu, Cr, Ni, Mg, Zn, Fe, and Pb. The chemical coagulants used for this research included: alum, ferric chloride, and lime. The study involved settling column tests for the various treatment methods to determine stormwater …
Implementation And Documentation Of Oracls (Optimal Regulator Algorithm For The Control Of Linear Systems) Software Package, Bahram Parvizi
Implementation And Documentation Of Oracls (Optimal Regulator Algorithm For The Control Of Linear Systems) Software Package, Bahram Parvizi
Retrospective Theses and Dissertations
The objective of this research is to mount a software package entitled Optimal Regulator Algorithms for the Control of Linear Systems (ORACLS), on a Control Data Corporation (CDC) Cyber 74 digital computer system at Florida State University so that is can be operated from the University of Central Florida. The software package contains 60 subroutines which can be used for the analysis and design of state variable feedback control alws for time-invariant linear systems. The procedure for using this package is documented. Several examples are presented to illustrate the capability ORACLS in both digital and continuous linear-quadratic-gaussian (LQG) controller design …
Plant Layout Technique Analysis For The U.S. Postal Service General Mail Facility, Howard Stillwell
Plant Layout Technique Analysis For The U.S. Postal Service General Mail Facility, Howard Stillwell
Retrospective Theses and Dissertations
The layout of the U.S. Postal Service General Mail Facility (GMF) workroom operation is an essential factor to the overall productivity of the mail processing activities. An efficient workroom layout will minimize the cost of transporting containerized mail between the various distribution operations. Any changes in distribution methods, increases or decreases in mail volumes, or the addition of mechanization must be analyzed by the GMF industrial engineer to determine what effect these changes have on the existing workroom layout. He must also be able to evaluate layout changes recommended by management and floor supervisors. The present methods available to the …
Optical Phase Modulation Utilizing Magnetoelastic Properties Of Metallic Glasses, Frank R. Trowbridge
Optical Phase Modulation Utilizing Magnetoelastic Properties Of Metallic Glasses, Frank R. Trowbridge
Retrospective Theses and Dissertations
Three different optical fiber phase modulators utilizing the magnetostrictive properties of the metallic glass alloy Fe74Co10B16 were constructed. By binding the optical fiber to the magnetostrictive metallic glass, the strain imparted to the metallic glass from the magnetic field is transferred to the optical fiber. The strain on the optical fiber shifts the phase of the light, which can be controlled indirectly by varying the current producing the magnetic field permeating the metallic glass. The performance of the modulators on the basis of optical phase shift as a function of bias magnetic field and optical phase shift as a function …
A Cross Assembler For The M6800 Microprocessor, Donald J. Walsh
A Cross Assembler For The M6800 Microprocessor, Donald J. Walsh
Retrospective Theses and Dissertations
This research paper describes a cross assembler for the Motorola 6800 assembly language which was written in Fortran to run on the Digital Equipment Corporation PDP 11/34. The assembler provides an assembly listing on the CRT or Printer and an Object File. In addition, the assembler will check for errors during PASS 1 and also during PASS 2.
City Of Kissimmee Solid Waste Collection System, Larry W. Walter
City Of Kissimmee Solid Waste Collection System, Larry W. Walter
Retrospective Theses and Dissertations
Every year the average American throws out more and more garbage. In the next five years, it is projected to increase 20-25 percent. This garbage, termed solid waste, is stored, collected, hauled and disposed of in some manner. The objective of this report has been to evaluate the City of Kissimmee's one-man residential solid waste collection system. The study results indicated this generation rate of the City to be 3.28 pounds per person per day, or 29.1 pounds per home per pickup. The productivity equations developed from the City data did not compare well with the results of EPA. Also …
Project Scheduling Under Constrained Resources, Mohammed Benameur
Project Scheduling Under Constrained Resources, Mohammed Benameur
Retrospective Theses and Dissertations
This report examines the widely acceptable Heuristic and Exact procedures for solving the problem of project scheduling and control under constrained resources. Heuristic approaches are more practical, however they depend on the type of the project as well as the resources involved. Exact procedures are illustrated using an Integer Linear Programming formulation of the problem, and also solving it using the Branch and Bound Technique. Impracticality of the exact methods stews from the fact that the computations expand to an unmanageable amount.
Television And Perceptions Of Reality, John M. Davis
Television And Perceptions Of Reality, John M. Davis
Retrospective Theses and Dissertations
No abstract provided.
Analysis Of The Public Service Employment Targeting Objectives For The State Of Florida, Andrea Lefforge
Analysis Of The Public Service Employment Targeting Objectives For The State Of Florida, Andrea Lefforge
Retrospective Theses and Dissertations
No abstract provided.
The Effects Of Various Message Strategies On Fund Raising Effectiveness For Charitable Organizations, Bonnie Jo Buck
The Effects Of Various Message Strategies On Fund Raising Effectiveness For Charitable Organizations, Bonnie Jo Buck
Retrospective Theses and Dissertations
No abstract provided.
The Effect Of Random Number Generators On Applications, Edwin G. Landauer
The Effect Of Random Number Generators On Applications, Edwin G. Landauer
Retrospective Theses and Dissertations
Several pseudorandom number generators are described and compared on the basis of cost of generation and length of period of the sequences that are produced. The major statistical tests, which are used to obtain a measure of randomness for the different generators are discussed and compared. Four pseudorandom number generators are programmed in GPSS and are used to generate interarrival and service times for an M/M/1 queuing system. The results of each of the trials are compared to the theoretical results which can be obtained from queuing theory.
The Effects Of Plain Sedimentation On The Quality Of Urban Stormwater Runoff From The Lake Eola Watershed, Victor Julius Godlewski
The Effects Of Plain Sedimentation On The Quality Of Urban Stormwater Runoff From The Lake Eola Watershed, Victor Julius Godlewski
Retrospective Theses and Dissertations
The settling characteristics of urban stormwater runoff emanating from the Lake Eola Watershed (Orlando, Florida) were evaluated through a series of 7 column studies. The percentage removal that occurred due to sedimentation was observed for various stormwater pollutants and constituents. These included the General Water Quality Parameters: Total Suspended Solids, Non-volatile Suspended Solids, Volatile Suspended Solids, Chemical Oxygen Demand, Total Kjeldahl Nitrogen, Ammonia Nitrogen, Total Organic Carbon, and Total Phosphorus. The metals parameters: Zinc, Cadmium, Arsenic, Nickel, Copper, Magnesium, Iron, Lead, Chromium and Calcium were also considered. The results of the settling analysis indicates that the quality of Lake Eola …
Adaptation To Pregnancy As A Function Of Sex-Role, Anne Heidrich Diebel
Adaptation To Pregnancy As A Function Of Sex-Role, Anne Heidrich Diebel
Retrospective Theses and Dissertations
Forty-four pregnant women were examined to determine how individual differences in sex-role orientation, as assessed by the Bem Sex-Role Inventory, were related to continued sexual interest, activity, and satisfaction in pregnancy. Subjects were further examined to determine the effects of sex-role identity upon third trimester anxiety levels as assessed by the State-Trait Anxiety Inventory, upon physical experience of pregnancy, upon emotional response to pregnancy, and upon labor and delivery records. Subjects were examined periodically in the third trimester of pregnancy to determine current levels of functioning as well as to acquire retrospective prepregnancy and first and second trimester data. As …
English Language Proficiency As A Predictor Of Academic Performance For U.S. Navy Hispanic Recruits, Eduardo Alejandro Salas Garcia
English Language Proficiency As A Predictor Of Academic Performance For U.S. Navy Hispanic Recruits, Eduardo Alejandro Salas Garcia
Retrospective Theses and Dissertations
No abstract provided.
Bilin: A Bilinear Transformation Computer Program And Its Applications, John Dana Greer
Bilin: A Bilinear Transformation Computer Program And Its Applications, John Dana Greer
Retrospective Theses and Dissertations
Given a transfer function for a differential equation model, an approach for obtaining a solution is by way of bilinear transformation. The bilinear transform approach is a numerical integration scheme which gives a discrete approximation to the differential equation solution. BILIN applies a series of polynomial transformations to the transfer function H(s). As a result, H(s) is mapped into the complex z plane obtaining the discrete transfer function H(z). From H(z), the difference equation is obtained whose solution y(nT) approximates the actual differential solution y(t). Hence, BILIN provides a means for obtaining discrete transfer functions for the design of digital …
Small Scale Hydropower-Appropriate Technology For Rural Development In Lesser Developed Countries, Stephen R. Harper
Small Scale Hydropower-Appropriate Technology For Rural Development In Lesser Developed Countries, Stephen R. Harper
Retrospective Theses and Dissertations
Less Developed Countries (LDC's) now have a total of about 2.8 billion people, or approximately 70 percent of the total world population. World populations and current energy consumption are such that is all the world's countries came up to the U.S. per capita energy use, the world's consumption would multiply by a factor of seven. For the LDC's, energy development will be an increasingly important issue. Hydropower technology is on the shelf, and available now, of proven feasibility both technically and economically, and presents a sound and rational energy solution from the environmental viewpoint. It is a technology which could …
Role Ambiguity, Role Conflict, Type A-B Behavior, Job Performance, And Psychosomatic Dysfunction, John Steven Mattone
Role Ambiguity, Role Conflict, Type A-B Behavior, Job Performance, And Psychosomatic Dysfunction, John Steven Mattone
Retrospective Theses and Dissertations
The main purpose of the present study was to determine empirically whether differences in perceived role conflict, role ambiguity, and Type A proclivities are associated with differences in perceived psychosomatic dysfunction. Moreover, an ancillary purpose of the present study was to determine whether differences in perceived job performance were associated with Type A-B tendencies and perceived role conflict and ambiguity. Data for 72 workers from all levels of two types of organizations (i.e., citizen protection and health) were obtained. All workers completed a role conflict and ambiguity measure, a 15-item self-report index of psychosomatic dysfunction, a 7-poimt measure of job …
The Effects Of Local Union Strength On Union Members' Attitudes, Perceptions And Job Satisfaction, Eileen Mcdonald
The Effects Of Local Union Strength On Union Members' Attitudes, Perceptions And Job Satisfaction, Eileen Mcdonald
Retrospective Theses and Dissertations
No abstract provided.
Effects Of Assessor Training On Subsequent Assessment Center Performance, Michael R. Struth
Effects Of Assessor Training On Subsequent Assessment Center Performance, Michael R. Struth
Retrospective Theses and Dissertations
No abstract provided.
Attentiveness And Time Budget Of A Pair Of Nesting Wood Storks, E. Scott Clark
Attentiveness And Time Budget Of A Pair Of Nesting Wood Storks, E. Scott Clark
Retrospective Theses and Dissertations
An instantaneous sampling system was used to quantify nest attentiveness and time budget of a pair of Wood Storks (Mycteria americana) nesting at the Moore Creek colony on Merritt Island National Wildlife Refuge in 1977. The amount of time devoted to various activities during each stage of the 4-month reproductive cycle was examined and differences between stages evaluated. During the incubation period an adult was constantly at the nest site and the birds shared equally in the incubation duties. During the first four weeks of the 8-week pre-flight nestling stage, an adult was with the chicks continuously, although the adults …
Evolution Of A Cooling Water Treatment Program At A Chemical Processing Plant, Lawrence P. Everson
Evolution Of A Cooling Water Treatment Program At A Chemical Processing Plant, Lawrence P. Everson
Retrospective Theses and Dissertations
During the construction of a chemical processing plant, a polyphosphate product was selected for use as a corrosion inhibitor in the open recirculating cooling tower system. After several months of operation, problems in the system made evident the fact that polyphosphate as a corrosion inhibitor was not acceptable. An organic corrosion inhibitor was substituted for the phosphate, resulting in improved corrosion protection and the elimination of phosphate fouling.
Evaluation Of Various Mass Transportation Alternatives For The University Of Central Florida Commuters, Jamal Niroumand-Rahimi
Evaluation Of Various Mass Transportation Alternatives For The University Of Central Florida Commuters, Jamal Niroumand-Rahimi
Retrospective Theses and Dissertations
This research evaluated various mass transportation alternatives for the commuting students, faculty and staff of the University of Central Florida (U.C.F.), located at Orlando. The alternatives considered in this research are bus service, van service / minibus service, vanpool, carpool, and bicycle and pedestrian modes. During the life-time of the University the private automobile has been the only prevalent mode of transportation used by the U.C.F. commuters. Opinion surveys conducted in the summer of 1979 indicated that the U.C.F. commuters are confronted with a number of transportation problems including lack of parking spaces on campus, traffic congestion on the access …
Prediction Of Football-Playing Ability In Spring Training Tryouts Through The Use Of Psychobiomotor Assessment, Michael D. Secunda
Prediction Of Football-Playing Ability In Spring Training Tryouts Through The Use Of Psychobiomotor Assessment, Michael D. Secunda
Retrospective Theses and Dissertations
Psychobiomotor assessment refers to the use of a combination of psychological, biological, and motor-performance tests to comprehensively analyze the skills, attributes, and performance capabilities of athletes. The purpose of this study was to test the hypothesis that there are significant psychobiomotor differences between successful collegiate football players in the offensive backfield positions and those players who are rates as less successful in these positions. Subjects were 19 male volunteer tryouts (mean age = 20.5) for the positions of quarterback and halfback on the inaugural University of Central Florida football team. They were assessed on the physiological variable anaerobic capacity, they …
Multiprocessor/Multicomputer Systems And Optimal Loading Techniques, Francis D. Adams
Multiprocessor/Multicomputer Systems And Optimal Loading Techniques, Francis D. Adams
Retrospective Theses and Dissertations
This report reviews the subject of multiprocessor/multicomputer systems and optimal loading techniques. This report covers: 1. The interrelationship of Multiprocessor/Multicomputer (Multiple Instruction Stream Multiple Data Stream, MIMD) systems and other architectures by presenting a categorization of computer architectures. 2. Comparison of Multiprocessor/Multicomputer (MIMD), versus Parallel Processor (Single Instruction stream Multiple Data stream, SIMD) systems. 3. Multiprocessor/Multicomputer problems, pitfalls and new goals. 4. Investigation of loading techniques by reviewing particular MIMD executive designs.