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Articles 1 - 30 of 39
Full-Text Articles in Engineering
The Generation Of Synthetic Speech Sounds By Digital Coding, Eddy Alan Steinberger
The Generation Of Synthetic Speech Sounds By Digital Coding, Eddy Alan Steinberger
Retrospective Theses and Dissertations
The feasibility of representing human speech by serial digital codes was investigated by exercising specially constructed digital logic coupled with standard audio output equipment. The theories being tested represent a radical departure from previous efforts in the field of speech research. Therefore, this initial investigation was limited in scope to a study of unconnected English language speech sounds at the phenome level. The experiments were conducted in two parts, with the first being the development of serialized digital codes, for selected speech sounds, derived from actual human speech. The second part was to synthesize these sounds using the specially constructed …
An Analysis Of The Progress In Automation Of Manned Space-Craft Test And Checkout, John E. Malone
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 …
An Application Of "Storm" Mathematical Modeling For Evaluation Of Nonpoint Source Water Pollution For A Nonurban Watershed, John T. Izzo
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 …
Septic Tank And Chemical Pumpings Evaluation, George C. Cushnie
Septic Tank And Chemical Pumpings Evaluation, George C. Cushnie
Retrospective Theses and Dissertations
No abstract provided.
Simulation Of A Spring Constrained Hypocyclic Roller Mechanism, Wayne R. Bomstad
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 …
A Status Report On Solar Energy Utilization In The State Of Florida, Henry Michael Armstrong
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 …
A Simulation Analysis Of Traffic Congestion In Telephone Systems, Raymond Banks Duncan
A Simulation Analysis Of Traffic Congestion In Telephone Systems, Raymond Banks Duncan
Retrospective Theses and Dissertations
No abstract provided.
A Study Of Assimilative Capacities For Receiving Streams, Hadi. Elmi
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 …
"Storm", A Mathematical Model Applied To The Shingle Creek Basin, Jay G. Foy
"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.
A Review And Comparative Study Of Management Concepts Used By Department Of Defense, William Hanay
A Review And Comparative Study Of Management Concepts Used By Department Of Defense, William Hanay
Retrospective Theses and Dissertations
It is the intent of this paper to review the Acquisition Management SysternVProgram Management concepts of the major Armed Services comprising the Department of Defense (DOD), Army, Navy and the Air Force, and the System Management process associated with System Acquisition. As such, this paper reviews highlights of the DOD Program Management Acquisition Management Systems. The study is closely related to the writer's position at Naval Training Equipment Center. Being a DOD employee and operating in a technical environment, specifically in a position of employing the Program Management concept to in-house major tasks the need for more fully understanding and …
Computer Generated Holograms, Jeffrey James Gierloff
Computer Generated Holograms, Jeffrey James Gierloff
Retrospective Theses and Dissertations
Computer generated holograms have been made practical by the introduction of fast Fourier transform algorithms. The following discussion will brief the reader on the theory and concepts of optical holograms, the computer hologram, and the analogies of the computer hologram to its optical counterpart. Some of the programming aspects of the computer holograms are presented. The results of the generation of several computer holograms are presented, and conclusions drawn as to the effectiveness of this technique. Finally, some of the practical uses and advantages of the computer hologram are discussed.
Computer Aided Analysis Of Flat Plate Solar Collectors, Thomas L. Hartman
Computer Aided Analysis Of Flat Plate Solar Collectors, Thomas L. Hartman
Retrospective Theses and Dissertations
A computer model of a flat plate solar collector has been devised. The model is able to simulate most common types of collectors, with up to three transparent covers of any material. Using primarily equations available from the literature the model calculates the transmission through the cover plates, the heat losses, and the useful heat gain. Derivation of all equations used are presented. A new method is presented for calculation of the mean plate temperature which differs from that commonly used in the literature. Experimental evidence is presented indicating that when transient effects are negligible the model is able to …
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
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. …
Digital Communication Systems Technical Control, Joel L. Horrell
Digital Communication Systems Technical Control, Joel L. Horrell
Retrospective Theses and Dissertations
This is a study of the methods of control of an advanced military communication system. The Tactical Communication Control System has been conceived to meet the demands of military users which are currently both analog and digital but steadily evolving to all - digital. It is a study of the design and application of multiplexers, modems, processors, switches, and other nodal equipment to accommodate communications among telephone and data users in a tactical environment. The main points of interest are the communication node and the control techniques used to carry out system objectives.
Maintainability Analysis Of Radio Guidance System Ground Support Equipment, Albert John Malerk
Maintainability Analysis Of Radio Guidance System Ground Support Equipment, Albert John Malerk
Retrospective Theses and Dissertations
No abstract provided.
An Investigation Of Sewage Treatment Automation Techniques, Albert E. Namey
An Investigation Of Sewage Treatment Automation Techniques, Albert E. Namey
Retrospective Theses and Dissertations
No abstract provided.
A Comprehensive Guide To Industrial Engineering Computer Software At Florida Technological University, Thomas Oliver Peeples
A Comprehensive Guide To Industrial Engineering Computer Software At Florida Technological University, Thomas Oliver Peeples
Retrospective Theses and Dissertations
The purpose of this manual is to provide a guide to Florida Technological University Computer Center programs which are commonly used for Industrial Engineering analysis. The user need not have extensive prior knowledge of computers to use this manual but an adequate understanding of the applied engineering techniques is recommended.
High-Speed Bipolar Microprocessor Usage For Extracting A Constant Frequency Signal From A Pulse Stream, Lenard Jay Persin
High-Speed Bipolar Microprocessor Usage For Extracting A Constant Frequency Signal From A Pulse Stream, Lenard Jay Persin
Retrospective Theses and Dissertations
This report presents an initial design effort for a high-speed, constant Frequency data extractor, which can be used to identify and track a particular constant frequency signal in the presence of other signals. Several factors must be included in the design considerations. The detection and acquisition of the correct signal should be accomplished at high speed to remain as close as possible to real time. Once detection has occurred, the system should generate a track-predict gate signal that enables the input line only when the real input pulse is expected. If track is lost, which happens whenever the track-predict gate …
Feasability Analysis Of Ramp Control Systems, A Simulation Approach., Henry Allen Popkin
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 …
Error Rates In Narrow-Band Digital Fm Systems Operating In Various Interference Environments, Arthur M. Rodriguez
Error Rates In Narrow-Band Digital Fm Systems Operating In Various Interference Environments, Arthur M. Rodriguez
Retrospective Theses and Dissertations
No abstract provided.
Stabilization System Environmental Disturbance Modeling And Analysis, Lawrence E. Sieb
Stabilization System Environmental Disturbance Modeling And Analysis, Lawrence E. Sieb
Retrospective Theses and Dissertations
Systems that operate in airborne environments and rely on the resolution provided by optical sensors require a stabilization system to isolate the line-of-sight (LOS) from the operating environment. For systems employing television sensors, stabilization accuracy is of prime importance in maintaining sufficient picture resolution to allow target identification and recognition at maximum ranges. The development of system models that accurately predict stabilization performance is important both in design trade-offs and in the system design and testing [l]. Two basic concepts are available for achieving LOS stabilization; momentum stabilization which employs a spinning mass and rate stabilization which utilizes inertial rate …
Suspended Solids And Deep Well Injection Systems, D. Robert Smedley
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.
Test Methods For Evaluating Performance Of Solar Units, William Joseph Vitaliano
Test Methods For Evaluating Performance Of Solar Units, William Joseph Vitaliano
Retrospective Theses and Dissertations
This report is concerned with the performance of solar hot water units for laboratory and field use. A solar unit is defined as a system consisting of a collector, storage tank, piping system and controls. Older unites typically employ the thermosyphon principle (gravity) while more recent models use a water pump to circulate the water. Basically, the collector absorbs solar radiation and transfers thermal energy to the water flowing in the collector tubing. From the collector, the fluid is pumped to the storage tank at which point the hot water is available for usage. A literature search revealed that very …
Analysis Of Unstable-Resonator And Optical-Train Laser Alignment Systems By The Use Of Matrix Methods Of Gaussian Optics, Frederick H. White
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 …
An Automated Design Of Reinforcement Concrete Building Structures, Mehdi Bahremand
An Automated Design Of Reinforcement Concrete Building Structures, Mehdi Bahremand
Retrospective Theses and Dissertations
The purpose of this paper is to present the development and use of a computer program to perform an automated structural design of two dimensional static concrete structural systems. The structural systems considered herein are composed of reinforced concrete beams and columns connected by rigid joints. Structural systems composed of large numbers of joints and members may be analyzed by using the developed program. The paper presents the development of the structural analysis using the displacement method and matrix techniques and the development of the concrete axial-moment interaction criteria. This criteria is based on the ultimate strength design using the …
Stormwater Management For Urban Areas, Gerald L. Chancellor
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 …
Clustering Concepts In Automatic Pattern Recognition, Patricia J. Defilipps
Clustering Concepts In Automatic Pattern Recognition, Patricia J. Defilipps
Retrospective Theses and Dissertations
During the past decade and a half, there has been a considerable growth of interest in problems of pattern recognition. Contributions to the growth have been from many of the disciplines including statistics, control theory, operations research, biology, linguistics, and computer science. One of the basic approaches to pattern recognition is cluster analysis, in which various methodologies may be successfully employed. It is the purpose of this research report to investigate some of the basic clustering concepts in automatic pattern recognition.
Stormwater Runoff From Shopping Centers, Thomas P. Donigan
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 …
A Search For A Computer Graphics System For The Small-Scale Computer User, Larry D. Holley
A Search For A Computer Graphics System For The Small-Scale Computer User, Larry D. Holley
Retrospective Theses and Dissertations
This paper presents a review of several computer graphics systems. The need for a universal graphics language is discussed and some typical languages are investigated. Several types of display terminals have been researched and their advantages and disadvantages have been listed. A vector plotting routine has been programmed on a microprocessor system as a part of the research. A description of the vector plotting system is included in this paper. The system could be a "modular unit" for general purpose use with any alphanumeric raster-scan display terminal and a simple graphics language.
The Effects Of Gap Stability On Entrance Ramp Merging, Lyn Evalyn Lane
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 …