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Suppression Of Turbofan And Turbojet Engine Generated Noise, Harry David Master Jan 1972

Suppression Of Turbofan And Turbojet Engine Generated Noise, Harry David Master

Retrospective Theses and Dissertations

Every advance in the transformation of heat energy into mechanical energy has involved a noise problem, and in general it increases with the power production. The jet airplane is a good example: the large-scale turbulence of the exhaust gases in the jet forms an unusually intense source of sound the control of which is quite difficult. The additionally generated fan noises add characteristic fan tones which are particularly noticeable on landing approaches. the human ear is the vulnerable receiver of these noises, and the problem becomes one of deciding how much jet engine noise reduction is required for the comfort …

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Data Management For A Police Command/Control Simulation Study, Gerald Louis Locasale Jan 1972

Data Management For A Police Command/Control Simulation Study, Gerald Louis Locasale

Retrospective Theses and Dissertations

The primary purpose of this thesis is to aid the Orlando Police Department locate areas of improvement with the effect of reducing the total response time of the Command/Control Center through the application of basic industrial engineering techniques. This work is presented in three major chapters. The first is concerned with the definition of the present operation of the Center, the total scope of each separate function within the Center and the interactions with the general public and other public safety departments. The second chapter develops the studies which provide the input values for the simulation model and the analysis …

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Asynchronous Digital Multiplexing, Carlos F. Ojeda Jan 1972

Asynchronous Digital Multiplexing, Carlos F. Ojeda

Retrospective Theses and Dissertations

No abstract provided.

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Feasibility Study Of A New Approach To Resolve Radar Range Bin Ambiguity, Donald Shue Yee Jan 1972

Feasibility Study Of A New Approach To Resolve Radar Range Bin Ambiguity, Donald Shue Yee

Retrospective Theses and Dissertations

This report describes the study of a new approach to resolve pulse radar range bin ambiguity problem. The nature and the cause of the problem are discussed, and various methods presently used to solve this problem are presented. The report points out the disadvantages of these methods and, thus, introduces a new approach to resolve the radar range bin ambiguity problem by examining the reasonableness of the trajectory of the object being traced. Necessary algorithm and computer programs to support the study are given in Appendices I, II, and III.

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Analysis Of Variation Of River Flow And Water Quality In The White River Basin, Michael Stephen Thompson Jan 1972

Analysis Of Variation Of River Flow And Water Quality In The White River Basin, Michael Stephen Thompson

Electronic Theses and Dissertations

The main objectives of this White River Basin study were to analyze flow variation records, to investigate existing river water quality data as compared with the designated beneficial uses for the basin and to consider the influence of present and future irrigation development. Data were collected from a number of sources and brought together for interpretation with respect to these objectives. The streamflow study utilizes the streamflow records from 10 gaging stations in the White River Basin. It is expected that the results of this investigation may be of assistance to the South Dakota Water Resources Commission and the South …

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Chronological Listing Of Research Reports, Division Of Research, Kentucky Department Of Highways Jan 1972

Chronological Listing Of Research Reports, Division Of Research, Kentucky Department Of Highways

Kentucky Transportation Center Research Report

No abstract provided.

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Subject Listing Of Research Reports, Division Of Research, Kentucky Department Of Highways Jan 1972

Subject Listing Of Research Reports, Division Of Research, Kentucky Department Of Highways

Kentucky Transportation Center Research Report

No abstract provided.

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Computer Method For Airport Noise Exposure Forecast, John Michael Bateman Jan 1972

Computer Method For Airport Noise Exposure Forecast, John Michael Bateman

Retrospective Theses and Dissertations

The major problem facing air transportation for the next decade is aircraft noise. The noise level due to the operation of large jet aircraft has created a very serious annoyance problem to the people living near of adjacent to jet airports. The noise problem has developed both for take-off and landing operations of these aircraft with take -off noise causing the greatest annoyance factor. A technique called Noise Exposure Forecast (NEF) has been developed to identify the annoyance factor of these noises to people and activities on the ground. With these NEF ratings or numbers, planners can better determine the …

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A Management Training Game For Police Command/Control Officer Training, Charles R. Custer Jan 1972

A Management Training Game For Police Command/Control Officer Training, Charles R. Custer

Retrospective Theses and Dissertations

No abstract provided.

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A Survey Of Simultaneous Binary Multiplication, Joseph Larry Voyer Jan 1972

A Survey Of Simultaneous Binary Multiplication, Joseph Larry Voyer

Retrospective Theses and Dissertations

No abstract provided.

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Analog/Hybrid Computer Simulation Applied To Sampled-Data Control Systems, Sam Joseph Monte Jan 1972

Analog/Hybrid Computer Simulation Applied To Sampled-Data Control Systems, Sam Joseph Monte

Retrospective Theses and Dissertations

No abstract provided.

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Optimization Analysis Of A Simple Position Control System, Arthur G. Cannon Jan 1972

Optimization Analysis Of A Simple Position Control System, Arthur G. Cannon

Retrospective Theses and Dissertations

One of the problem areas of modern optimal control theory is the definition of suitable performance indices. This thesis demonstrates a rational method of establishing a quadratic performance index derived from a desired system model. Specifically, a first order model is used to provide a quadratic performance index for which a second order system is optimized. Extension of the method to higher order systems, while requiring more computations, involves no additional theoretical complexities.

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Flood Control Modeling, Peter E. Delle Donne Jan 1972

Flood Control Modeling, Peter E. Delle Donne

Retrospective Theses and Dissertations

This is a research report that discusses some continuous and discrete modeling techniques. The report applies these techniques to the analysis of Canal 38 (Kissimmee River) part of Central and South Florida Flood Control District. The analysis is based on recorded data for defining the physical systems parameters. Established parameters are mathematically related to define a descriptive model for Canal 38. The modeling procedure of 'trial and error' is used to assemble the model with measures of merit, the integral square error, and root mean squared error. General simulation considerations are discussed for application of the mathematical model.

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Analyses Of The Water And Wastewater Systems At Florida Technological University, Fred C. Jensen Jan 1972

Analyses Of The Water And Wastewater Systems At Florida Technological University, Fred C. Jensen

Retrospective Theses and Dissertations

In searching for a subject to meet the M. S. Degree Research Report requirements, I had several objectives in mind. I wanted (1) a project with relevancy in the environmental field which would broaden my understanding of the environmental systems which I have studied, (2) a subject which would allow me to apply some of the Principles which I have learned in Operations Research , and (3) a project which had good practical application. With these objectives in mind, I reviewed the suggested topics presented by the Faculty and selected the FTU Water and Wastewater System Analyses topic which was …

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Rapid Mixing In Water And Wastewater Treatment, Randall C. Rector Jan 1972

Rapid Mixing In Water And Wastewater Treatment, Randall C. Rector

Retrospective Theses and Dissertations

No abstract provided.

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Interactions Of Pesticides And Phytoplankton, Pamela H. Philyaw Jan 1972

Interactions Of Pesticides And Phytoplankton, Pamela H. Philyaw

Retrospective Theses and Dissertations

No abstract provided.

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Reconstruction Of Finite Duration Signals, John A. Stuller Jan 1972

Reconstruction Of Finite Duration Signals, John A. Stuller

Electrical and Computer Engineering Faculty Research & Creative Works

The Problem of Reconstructing a Finite-Duration Finite- Energy Signal that Has Been Band Limited and Sampled is Considered. an Interpolation Formula is Derived that, in Principle, Permits Perfect Signal Reconstruction in the Noiseless Case Provided Only that the Sampling Frequency Exceeds the Cutoff Frequency of the Band-Limiting Filter. the Degradation Introduced by Measurement Noise on the Samples is Evaluated. © 1972, IEEE. All Rights Reserved.

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An Investigation Of Methods For Reuse Of Rubber Tires, Charles Edward Armbruster Jan 1972

An Investigation Of Methods For Reuse Of Rubber Tires, Charles Edward Armbruster

Retrospective Theses and Dissertations

Methods of reusing/recycling the more than 250 million automobile and truck tires which are worn out each year were investigated. The existing methods of reusing tires account for about 30 percent of the volume of scrap tires generated each year. These methods are, Retreading, Reclaiming (by reducing to ground up rubber and fiber), and Tire Splitting (stamp items out of sidewall and tread areas). Several possibilities for reusing/recycling the unused 70 percent were discovered. These methods are as follows: Destructive Distillation -- a method of recovering chemicals from tires by pyrolitic action. It is anticipated that eventually as much as …

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Probabilistic Models For Construction Estimating And Bidding, James E. Spooner Jan 1972

Probabilistic Models For Construction Estimating And Bidding, James E. Spooner

Doctoral Dissertations

"Two probabilistic models are offered as a means for quantitatively determining contingency in a lump-sum bid. The first model is based on the isolated project and requires subjective evaluation of probabilities associated with the individual elements of the estimate. Contingency is defined as a function of the standard deviation of project field costs. Procedures are developed to obtain the variance of the total field cost from three-value estimates of the primary quantities. The second model considers the business as a stochastic process with an initial risk reserve and a positive risk loading, and contingency in this model is a function …

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The Relationship Of Textbooks To Development Of Course Content In The Teaching Of Small Gas Engines, Frank Demchuck Jan 1972

The Relationship Of Textbooks To Development Of Course Content In The Teaching Of Small Gas Engines, Frank Demchuck

All Master's Theses

This study compares and evaluates the ideas and opinions of practitioners with the ideas and opinions of educational theorists. Information from the practitioners was gathered by questionnaire. Information from the theorists was gathered by a search of the related literature. The findings, showing the relationship or textbooks to the development of course content in the teaching of small gas engines, are presented and evaluated. A small gas engines textbook outline based on information gained from this study is also presented.

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Plant Response To Nitrogen From Three Slow Release Fertilizers : Interim Report, Robert E. Mcniel, Philip L. Carpenter Jan 1972

Plant Response To Nitrogen From Three Slow Release Fertilizers : Interim Report, Robert E. Mcniel, Philip L. Carpenter

JTRP Technical Reports

No abstract provided.

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Minimum Weight Design Of Stiffened Cylindrical Shells Using Structural Synthesis, Joseph Eugene Heckelbeck Jan 1972

Minimum Weight Design Of Stiffened Cylindrical Shells Using Structural Synthesis, Joseph Eugene Heckelbeck

Retrospective Theses and Dissertations

Several search methods for unconstrained minimization in the minimum weight design of a stiffened cylindrical shell are investigated. The cylindrical shell, under study, is stiffened with bar shaped stiffeners in the longitudinal and circumferential directions, and capable of being loaded both axially and radially with up to ten separate load conditions. For this investigation, it was necessary to alter an unconstrained minimization program for use on the IBM 360 computer by employing double precision techniques. The computer runs obtained on this system are compared with those provided by the prior work of William Morrow and Lucien Schmit. The results show, …

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An Automated Student Advisement And Projected Course Enrollments, Brian Odell Montgomery Jan 1972

An Automated Student Advisement And Projected Course Enrollments, Brian Odell Montgomery

Retrospective Theses and Dissertations

One of the major problems of the modern university is the process of student advisement and course scheduling. The purpose of this paper is to write a computer program which will aid in solving this problem of student advisement and course scheduling for the undergraduate students of the College of Engineering at Florida Technological University. the computer program which is developed in this paper, aids in the problem of student advisement by producing a one page output for each student. This output page, which is separated by department, lists all courses the student has taken and passed, all transfer hours, …

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Computer Assisted Teaching Of Steel Design, Wendelin Henry Mueller Iii Jan 1972

Computer Assisted Teaching Of Steel Design, Wendelin Henry Mueller Iii

Doctoral Dissertations

"A method for use in creating a university level course is presented. The specifics of each of the steps is given in general terms to allow its application to as many different topics as possible. This method is then specifically applied in the formation of a fundamental steel design course using the American Institute of Steel Construction Specification. The reasoning utilized in each phase of development is documented. A lecture style presentation complemented by a series of student oriented computer programs was chosen for use. The details of the course material in outline form is given along with the computer …

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Calibration Of Parshall Flumes With Non-Standard Entrance Transitions, Cheng-Lung Chen, Calvin G. Clyde, Min-Shoung Chu, Chi-Yuan Wei Jan 1972

Calibration Of Parshall Flumes With Non-Standard Entrance Transitions, Cheng-Lung Chen, Calvin G. Clyde, Min-Shoung Chu, Chi-Yuan Wei

Reports

The 9-ince and 18-inch Parshall flumes with the throat section installed level with the bottom of an incoming pipe were tested. The measured discharges for given flow depths (free flow) or differences in flow depths (submerged flow) were found to deviate quite significantly fromt he computed standard Parshall flume disharges at both low and high flow rates. New empirical formulats have been developed to take such deviations into account. It is noted that values of the coefficients and exponents contained in the new formulas depend on the throat size of the flume and the slope of the incoming pipe. Calibration …

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Water Resources Planning To Satisfy Growing Demand In An Urbanizing Agricultural Region, Thomas C. Anderson Jan 1972

Water Resources Planning To Satisfy Growing Demand In An Urbanizing Agricultural Region, Thomas C. Anderson

Reports

Although it is condeded that an adequate supply of water is essential to economic growth and development, what constitutes an "adequate" supply is often controversial and difficult to determine. The problem can be solved by applying basin economic concepts: determining the value of water be estimating its supply and demand. This report demonstrates one method for doing this. The theory of the demand for irrigation water and its empirical application are discussed. An example problem based on data from one of the sub-regions of the study area (the Jordan River Basin of Utah) is presented to illustrate the method. The …

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Development Of A Sampling System And Characterization Of Stormwater Runoff From A Small Urban Area, William Clark Ford Jan 1972

Development Of A Sampling System And Characterization Of Stormwater Runoff From A Small Urban Area, William Clark Ford

Masters Theses

"Increasing urbanization and the demand for high quality water have directed attention to the problem of combined sewer overflows, while recent research has demonstrated that stormwater alone, without the influence of sanitary sewage, carries a significant pollutional load. The purpose of this investigation was to determine the quality and pollutional contribution of stormwater runoff from a small urban area, with specific emphasis on the development of a suitable sampling and flow recording system, the characterization of runoff and the correlation of runoff quality with local environmental factors and storm characteristics. The system developed consisted of an automatic sampler capable of …

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A Strain Energy Comparison Of Discrete Modeling For Vibrating Continuous Systems, S. K. Tolani, Richard Dale Rocke Jan 1972

A Strain Energy Comparison Of Discrete Modeling For Vibrating Continuous Systems, S. K. Tolani, Richard Dale Rocke

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Lumped parameter models commonly used to describe continuous one-dimensional and Bernoulli-Elder beam vibration problems have been compared on the basis of maximum system, strain energy. The consistent mass matrix approach has been included in the comparison. Standard matrix techniques have been employed to mathematically obtain desired solutions. Closed form solutions and solutions via the models to Ike system strain energy were obtained for all systems in three dynamic states: Free vibrations, constant base acceleration, and half sine base acceleration. Behavior of the strain energy errors, in general, were found to be similar to those of the frequency root errors. © …

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Concentration By Sorting : Feasibility Determination By Radial Distribution Analysis, Robert M. Doerr Jan 1972

Concentration By Sorting : Feasibility Determination By Radial Distribution Analysis, Robert M. Doerr

Masters Theses

"A method was developed for determining certain factors for assessing the feasibility of sorting fragments of an inhomogeneous solid to concentrate a species. These factors are the typical size of zones in which the grade exceeds a selected value, and the recovery potentially achievable by sorting fragments of such size"--Abstract, page iii.

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Low Temperature Lattice Parameters And Expansion Coefficients Of Ai2au And Lif Gruneisen Constants Of Lif, Martin E. Straumanis, Jayant S. Shah Jan 1972

Low Temperature Lattice Parameters And Expansion Coefficients Of Ai2au And Lif Gruneisen Constants Of Lif, Martin E. Straumanis, Jayant S. Shah

Materials Science and Engineering Faculty Research & Creative Works

There is no difference in the thermal expansion behavior of an intermetallic compound (Al2Au) and of an ionic (LiF), except in the magnitude of the expansion coefficients, which for both compounds upon cooling below 40°K approach zero. The lattice parameters of the two compounds mentioned decrease uniformly and without anomalies with lowering the temperature, approaching a constant value below 40°K. The a–T relationship between 40 and 180° is given in form of equations. A pump working on the Joule‐Thomson principle was used for cooling. The GRÜNEISEN parameter, γ, of LiF between 40 and 180°K is a constant, contrary to theoretical …

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