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A Parametric Investigation Of The Validity Of 1/25 Scale Automobile Aerodynamic Testing., Marvin Eugene Doberenz

Masters Theses

"Wind tunnel tests have been performed measuring the aerodynamic forces and underbody boundary layer profiles for 1/25 scale models. The trends of the force coefficients with Reynolds number, the underbody boundary layer profiles, and the influence of the ground plane boundary layer on the force coefficients of small-scale models has been shown to be similar with previous results from larger models. This study has shown the usefulness of small-scale models for parametric studies of automobile aerodynamics. The agreement of the data with previous results, also supports the possih1lity o f a method of correction for boundary layer growth on fixed …

A Master Data Bank In Power Systems., Nittaya Hokierti

Masters Theses

"A Master Data Bank (MDB) is used to prepare the data sets of large power system networks for later study. The MDB program has been developed to be compatible with data and formats used in load flow and short circuit studies. The MDB can store up to six sets of base case data. Magnetic disk storage is used as the storage medium to obtain adequate data storage and faster access to the data. The size of storage can be expanded by modification of statements in the MDB source program and job control statements. The data sets in the MDB can …

Septic Tank And Chemical Pumpings Evaluation, George C. Cushnie

Retrospective Theses and Dissertations

No abstract provided.

A Study Of Assimilative Capacities For Receiving Streams, Hadi. Elmi

Retrospective Theses and Dissertations

Literature reviews on various stream processes which contribute to reoxygenation and deoxygenation was presented. These processes include atmospheric reaeration, photosynthesis-respiration, biochemical oxygen consumption, and benthic demand. Measuring these parameters in a selected stream is a complex and costly operation. On the other hand, prediction models developed are specific to particular location and environmental conditions and can only be applied to similar situations. Computer models such as "RIVER" are available and could be used to predict dissolved oxygen concentrations along a waterway for a specified set of stream conditions. The model "RIVER" was calibrated by using the existing conditions of flow …

An Application Of A Computerized Mathematical Model For Estimating The Quantity And Quality Of Nonpoint Sources Of Pollution From Small Urban And Nonurban Watersheds., Charles John Ingraham

Retrospective Theses and Dissertations

The problem of "Total Water Management" is reviewed; particular emphasis is given to the magnitude and intensity of pollution from nonpoint sources. The relationship between land usage in south Florida and subsequent effects upon receiving water bodies is discussed. Basic factors effecting hydrological and ecological subsystems are illustrated. The U.S. Army Corps of Engineers Urban Storm Water Runoff Mathematical Model, "STORM," is introduced. Model parameters and methodology are discussed. The mathematical relationships and modeling processes are reviewed and the model is exercised using a "new generation" southeast Florida community (The City of Palm Beach Gardens) as the subject of study. …

Lake County, Florida Solid Waste Management Plan, Lawrence J. Morey

Retrospective Theses and Dissertations

The history of solid waste management in Lake County, Florida is reviewed. The role of governmental agencies is mentioned. Local environmental characteristics and transportation systems are discussed. Existing collection and disposal practices are presented. A land use analysis of the unincorporated areas of the County is given. Projections of population and solid waste quantities are listed. Two computer models are presented. Their optimum solutions are analyzed in detail. The cost associated with implementing either plan is presented. A recommended plan is given based on a combination of transfer stations and sanitary landfills.

A Unit Hydrograph For The Missouri Ozark Region., Melvin G. Schaefer

Masters Theses

"Eleven small watersheds from the Missouri Ozark region are used in generating a synthetic unit hydrograph. The analysis is composed of three parts: First, a prediction equation is developed which correlates the time lag parameter with the physical features of the watershed. Second, an equation is developed which predicts the peak flow ordinate for 30-, 60- and 120-minute unit hydrographs. Third, an average dimensionless unit hydrograph is determined"-- Abstract, p. iii

Project Program Evaluation Technique For Real Property Maintenance Activities., Richard Walter Graumann

Masters Theses

"Managers of Real Property Maintenance Activities often only consider workmanship and customer satisfaction when evaluating the overall effectiveness of their contracted maintenance and construction projects. For multi-functional organizations where top management is responsible for the execution of several hundred concurrent, unrelated, unique, and widely dispersed projects, these subjective factors are not adequate to conduct a meaningful evaluation.

Top management must continually assess not only the progress of contracted work, but also the engineering design and contract administration functions. Published material has given little attention to the need for aggregating project data in a multi-project environment to provide management with the …

Creep And Stiffness Of Full Column Resin Grouted Roof Bolts., Wesley Clare Patrick

Masters Theses

"A three-phase test program was utilized to evaluate some creep and stiffness parameters of several types of full-column resin-grouted roof-bolt installations. The tests indicate that: (1) a large percentage of an applied load bleeds off during the first 100 hours subsequent to bolt installation; (2) the amount of load bleed-off is a f unction of the grout annulus size and the bolt surface roughness; (3) retightening of grouted rock bolts reduces the magnitude and rate of the load bleed-off phenomenon; and (4) resin-grouted roof bolts provide a stiffer roof support system in that bolt elongation resulting from an applied load, …

Stormwater Runoff From Shopping Centers, Thomas P. Donigan

Retrospective Theses and Dissertations

This is a brief investigation of stormwater runoff from a large shopping center located in Brevard County, Florida. Merritt Square Shopping Center has a parking area for 4,700 automobiles and is located on the shore of Newfound Harbor which is classified as recreation waters (Class III). A literature survey of runoff studies in other areas has been made for both "state of the art" and evaluation of findings. Water samples were initially collected from five locations. Review of the analysis of these samples indicated that while color and turbidity appeared to decrease linearly with time, organic and inorganic concentrations did …

An Analysis Of The Progress In Automation Of Manned Space-Craft Test And Checkout, John E. Malone

Retrospective Theses and Dissertations

Manned Spacecraft Programs are the largest research and development tasks ever undertaken by the government or by private industry in the United States. Under the direction of the National Aeronautic and Space Administration (NASA) these programs have advanced from Project Mercury in the early 1960's through Gemini, Apollo, including Moon Landing, and Skylab Programs to the present day Space Shuttle Program. With the development of each new program, there comes a growing awareness of the ever increasing complexity of tasks relating to integrated preflight test and checkout. Data rates have grown from one (1) pulse amplitude modulated/frequency modulated (PAM/FM) link …

Mixing Effects On Shallow Water Bodies, Kim Robin Powell

Retrospective Theses and Dissertations

This report is intended to examine the ecological changes due to mixing in shallow water bodies. Physical, chemical, and biological changes are reported in literature. A literature search revealed the range of mixing nodes or processes. Assessment of ecological changes due to mixing by boating activities had been evaluated in a research project supported by the environmental Protection Agency and conducted at Florida Technological University. The examination of changes due to mechanical mixing on lake ecology simulated in fifty-five gallon drums indicated the sensitivity of such parameters as total Kjeldahl nitrogen, conductivity, pH, temperature, and dissolved oxygen. Problems of reproducibility …

A Status Report On Solar Energy Utilization In The State Of Florida, Henry Michael Armstrong

Retrospective Theses and Dissertations

The current energy crisis has pointed out the need for alternative, non-depletable sources of power. Solar energy would appear to be a likely source of such power for the state of Florida where the average home receives enough of this energy to supply all of its heating and cooling needs during the course of the year. Energy consumption profiles for Florida reveal that almost one-quarter of all energy is consumed within the residential-commercial section for basic heating and cooling. Additionally, the state is, essentially, totally dependent on petroleum and natural gas for its energy supply. Solar energy has been used …

Feasibility Study Of The Utilization Of Solar Energy For Large Scale Power Production In The State Of Florida, Michael Propen

Retrospective Theses and Dissertations

The objective of this paper is to investigate the feasibility of large scale electric power generation in the state of Florida by means of solar conversion. Such systems convert solar radiation directly to electricity or to thermal energy and subsequently to electricity. With the latter method, solar energy is initially collected and converted to heat at high temperature through a working fluid. The heat is then used to power conventional heat engine generator systems. Several methods have been proposed for converting sunlight to useful work. The most promising of these will be examined from a technological and economic viewpoint.

The Effects Of Gap Stability On Entrance Ramp Merging, Lyn Evalyn Lane

Retrospective Theses and Dissertations

This report analyzes freeway data from a moving merge control system in Tampa, Florida. The distribution of velocity at sensors in the roadway is plotted and compared to a normal distribution. The size of the gaps at each sensor are computed and compared to those at a sensor downstream. The distributions of the change in gap size are plotted for all gaps and then for gaps between the same pairs of vehicles, to determine the effects of prohibiting lane changing. The expected time of arrival of the gaps at a point downstream are computed, compared to the actual time of …

Analysis Of Unstable-Resonator And Optical-Train Laser Alignment Systems By The Use Of Matrix Methods Of Gaussian Optics, Frederick H. White

Retrospective Theses and Dissertations

A high-power gas dynamic-laser example system is described, and its optical elements are represented in the ABCD-matrix formalism of Gaussian optics. Propagation of Gaussian beams, image formation, focusing, and steering by transverse refractive-index gradients are modeled with the ABCD matrix technique. The effects of small translations and rotations of optical elements are represented as matrices and vectors in the ABCD-matrix formalism, and are analyzed as component misalignments with single and multiple beam reflections. Example calculations show that alignment beams making multiple round trips inside an unstable resonator can easily provide satisfactory resonator alignment and designation of the aim point of …

Plating Wastewater Management, Earl Kenneth Ossorio

Retrospective Theses and Dissertations

A study was made of existing methods of management, treatment and disposal of water and wastewater effluents at a large aerospace facility (Martin Marietta Aerospace) in Central Florida. Water consumption and handling were evaluated, with emphasis being placed on the handling of plating wastes, since they are the main contributor of industrial wastewater pollutants at the facility. The flow, storage, and treatment of the plating wastes were studied. Literature concerning plating wastes was surveyed to determine the latest "state of the art" on handling of plating pollutants. Then, the "state of the art" processes were compared with the existing processes …

Development Of A Uhf Digital Frequency Synthesizer For Distance Measuring Equipment, Claude A. Sharpe

Retrospective Theses and Dissertations

This report summarizes the design of a digital frequency synthesizer for airborne distance measuring equipment. It is the purpose of the frequency synthesizer to provide a stable frequency source for the local oscillator of the airborne receiver and for the power amplifiers in the transmitter chain. The synthesizer is required to furnish a frequency ranging from 260.250 mHz to 287.50 mHz in channel steps of 250 kHz at a power level of +7.0 dBm. the stability of the frequency must be greater than .005% over the temperature range of from minus 45 degrees centigrade to plus 55 degrees centigrade, requiring …

A Comparison Of Corrosion Rates Determined By Polarization Resistance Measurements For Zinc And Cadmium Metal Immersed In Nonstirred Aqueous Portland Cement Solution, William James Moore

Retrospective Theses and Dissertations

The effect of nonstirred aqueous Portland cement solution on the corrosion rates of zinc and cadmium metal using Tafel extrapolation and linear polarization measurements has been investigated. Results indicate that for the corrosion systems under investigation, zinc metal has a higher corrosion potential and lower corrosion rate than cadmium metal.

Suspended Solids And Deep Well Injection Systems, D. Robert Smedley

Retrospective Theses and Dissertations

A test method and the associated equipment have been developed to investigate the effect of suspended solids on the flow of fluid into a deep injection well system. Preliminary testing indicates that the equipment and test method can be used to determine the permeability of rock samples with a high degree of accuracy. Additionally this equipment can be used in a testing program which will eventually lead to the development of guidelines for the degree of pre-injection treatment required for suspended solids so that the operational life of the well is not impaired.

Stormwater Management For Urban Areas, Gerald L. Chancellor

Retrospective Theses and Dissertations

Stormwater management in urban areas is a major concern today. The problem of disposing of this stormwater runoff in a satisfactory manner is very difficult indeed. Both the quantity and quality aspects of the runoff must be dealt with to obtain a solution of this problem. The water quality of the runoff can vary depending upon the different land uses of the drainage basin. The quantity of the stormwater runoff also depends upon the land uses, the rainfall intensity and duration of the storm. The traditional methods available for determining the quantity of the stormwater runoff are numerous. These traditional …

A Computer-Automated Laboratory System In A University Environment, James H. Tracey, Hardy J. Pottinger, Richard D. Rechtien

Electrical and Computer Engineering Faculty Research & Creative Works

A computer-automated laboratory system at the University of Missouri-Rolla, Rolla, which serves a wide variety of instruction and research disciplines including Geophysics, Cloud Physics, and Computer Graphics, is described. The system serves as an example for campuses which are relatively small in geographic area and with budget limitations which dictate a step-by-step evolution. The paper describes 1) the constraints and economics realized in the development of the system, 2) the characteristics of the minicomputer network, and 3) an evaluation of the system philosophy and performance. Also included is a description of diverse laboratory projects supported by the computer-automated system. © …

Generalized Likelihood Signal Resolution, John A. Stuller

Electrical and Computer Engineering Faculty Research & Creative Works

This Paper Defines an M-Ary Generalized Likelihood Ratio Test (MGLRT) that overcomes Root's Early Objection to the Application of Generalized Likelihood Ratio Testing to the Resolution of Correlated Signals. the Proposed Test Extends the Form of a Conventional Binary Generalized Likelihood Ratio Test (GLRT) in a Manner that Permits a Generalization of the Minimax Properties of the Binary Test to the M-Hypotheses Case. When the Estimated Signals Are Orthogonal, the Test Reduces to a Sequence of Conventional Binary Tests Duplicating the Performance of a Narrow-Band Matched Filter Envelope-Detector Receiver. © 1975, IEEE. All Rights Reserved.

The Application Of Impact Dampers To Continuous Systems, Ranjit K. Roy, Richard D. Rocke, J. Earl Foster

Mechanical and Aerospace Engineering Faculty Research & Creative Works

A study has been made of the application of impact dampers to two types of continuous systems, a simply supported and a clamped beam. Experimental models were tested in the laboratory and computer programs were developed to calculate response by two separate approaches. Results from calculations agreed favorably with experimental tests. Curves presented show the response to be expected for values of significant system parameters and enable the user to apply impact dampers to these types of continuous systems. © 1975 by ASME.

The Effective Autocorrelation Function Of Maximum Entropy Spectra, Richard E. Dubroff

Electrical and Computer Engineering Faculty Research & Creative Works

The technique and the relative advantages of maximum entropy spectrum analysis have been discussed by Burg [1], [2]. Evaluation of the inverse Fourier transform of the maximum entropy spectrum shows that this method does, indeed, correspond to a reasonable nonzero extension of the autocorrelation function.

Simulation Of A Spring Constrained Hypocyclic Roller Mechanism, Wayne R. Bomstad

Retrospective Theses and Dissertations

Hypocyclic mechanisms are the basic building blocks in the design of many widely used mechanical systems such as gear differentials, computing devices and other useful instruments. This paper presents a unique variation to the conventional hypocyclic system configuration in that the rotating elements are spring constrained instead of rigid arm constrained. A mathematical model was develop to simulate the operational characteristics of the mechanism. The model was coded in Fortran IV computer language and a simulation survey was conducted for a set of geometrical and system constraints. The results of this survey indicate that the mathematical model could be a …

"Storm", A Mathematical Model Applied To The Shingle Creek Basin, Jay G. Foy

Retrospective Theses and Dissertations

Stormwater management necessitates a regional plan based on the best practical methods. "Storm", a mathematical model, is employed to simulate runoff conditions in the Shingle Creek Basin. The computed runoff quantity is calibrated directly with the streams hydrograph. Runoff quality is predicted with two sets of pollutant loading rates. The scope of the model is expanded by development of parametric curves that can be used to convert measured quality data to input land use loadings. A parametric study is also performed to fabricate the effects of urbanization on the Shingle Creek Basin.

An Application Of "Storm" Mathematical Modeling For Evaluation Of Nonpoint Source Water Pollution For A Nonurban Watershed, John T. Izzo

Retrospective Theses and Dissertations

Today, the engineer is faced with the task of predicting and evaluating the extent of the Nonpoint Sources that pollute our waterways. A mathematical model may be an extremely useful tool in helping the engineer solve problems in the area of water resources. During the course of this investigation, a literature survey related to the Econlockhatchee River Basin and to the "STORM" mathematical modeling technique for runoff evaluation has been conducted. The latter part of this report deals with an application of the "STORM" mathematical model for predicting quantity and quality of surface runoff for the Econlockhatchee River Basin located …

An Investigation Of Sewage Treatment Automation Techniques, Albert E. Namey

Retrospective Theses and Dissertations

No abstract provided.

Feasability Analysis Of Ramp Control Systems, A Simulation Approach., Henry Allen Popkin

Retrospective Theses and Dissertations

The ever increasing traffic congestion being experienced on urban freeways has caused attention to be focused on methods for improving traffic operations on these facilities. The reduction or elimination of freeway congestion can be handled in two basic ways: 1) by increasing the freeway's capacity defined as the number of vehicles per unit time that can pass a given point in one lane of the freeway multiplied by the number of lanes on the freeway, or 2) by decreasing the traffic loads imposed on these freeways. Monumental costs and adverse public relations are involved in the construction of either new …