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Articles 1 - 30 of 36
Full-Text Articles in Engineering
The Future Of Nuclear Energy In Florida, James Wayne Edwards
The Future Of Nuclear Energy In Florida, James Wayne Edwards
Retrospective Theses and Dissertations
No abstract provided.
Design Of The Ultralight Two Place Gyroplane, Martin. Hollmann
Design Of The Ultralight Two Place Gyroplane, Martin. Hollmann
Retrospective Theses and Dissertations
No abstract provided.
The Effects Of Variations In The Excitation Parameters Of Blast Waves On The High Frequency Response Of Circular Rings, Paul John Mirabella
The Effects Of Variations In The Excitation Parameters Of Blast Waves On The High Frequency Response Of Circular Rings, Paul John Mirabella
Retrospective Theses and Dissertations
The high frequency response of a circular ring of rectangular cross section interior to a conical shell excited by a blast wave is examined. The ring supports a rigidly attached mass during excitation. It is hypothesized that the response is a function of the four excitation parameters which characterize the loading. These are: peak reflected pressure; characteristic time (pulse duration); wave engulfment time; and circumferential distribution. These parameters are varied over a range of interest in an effort to ascertain the structural sensitivity to such perturbations. A series of tests sponsored by the Department of the Army and the Martin …
Fugitive Particulate From Highway Construction, Kennard F. Kosky
Fugitive Particulate From Highway Construction, Kennard F. Kosky
Retrospective Theses and Dissertations
National ambient air quality standards for particulate matter have been promulgated since April, 1971. While effects of stationary sources on these standards have been examined, little research has been accomplished on the effects of fugitive particulate. This thesis examines the environmental impact of a fugitive dust source, Highway Construction. Using the High-Volume reference method for particulate sampling, the effect of Highway construction was determined. An analysis of concentrations, distance influences, meteorological influences, particle sizes and construction influences is presented. The data obtained from this study indicates the major influence of concentrations is a function of distance and sampling height. Particle …
Dynamic Modeling With Discrete Management Decisions, Victor Jorge Sorondo
Dynamic Modeling With Discrete Management Decisions, Victor Jorge Sorondo
Retrospective Theses and Dissertations
No abstract provided.
A Binary Power Generation And Salt Water Distillation Cycle, Edward H. Hardison
A Binary Power Generation And Salt Water Distillation Cycle, Edward H. Hardison
Retrospective Theses and Dissertations
This research report discusses a binary power generation and salt water distillation cycle that was the subject of a feasibility study at Florida Technological University. The thermodynamic equations are derived and the results of a parametric study to determine optimum fluid properties is presented. This cycle produces power at efficiencies significantly higher than that of conventional cycles and at the same time produces a significant amount of fresh water. The efficiency is maintained even at the high turbine outlet temperature necessary to produce fresh water. The important quantities in considering they cycle efficiency and the fresh water production are the …
Electromagnetic Fields In Water Treatment, Robert H. Fagan
Electromagnetic Fields In Water Treatment, Robert H. Fagan
Retrospective Theses and Dissertations
Properties and characteristics of colloidal systems are reviewed with a discussion of colloid systems to be found in natural and wastewaters. Current electric and magnetic field theory are reviewed and summarized to provide practical application of the theory to engineering problems in the environmental field. Literature of colloidal reactions to electrical and magnetic fields is discussed and reviewed to ascertain areas of potential application of electric and magnetic phenomena to natural and wastewater treatment systems having objectionable colloid suspensions. It is concluded that application of electrical fields (electrophoresis) does not currently hold much promise for practical applications in water treatment …
Reduced Third Order Intermodulation Distortion Utilizing A Push-Pull Class C Vhf Transistorized Amplifier, Norman B. Mosher
Reduced Third Order Intermodulation Distortion Utilizing A Push-Pull Class C Vhf Transistorized Amplifier, Norman B. Mosher
Retrospective Theses and Dissertations
In a transistorized push-pull amplifier, third order intermodulation distortion was effectively reduced at VHF frequencies with an output power of two watt. The non-linear distortion of the amplifier is modeled using a power series. The resulting expression is used as the basis for choosing the push-pull configuration to reduce the third order intermodulation distortion. The amplifier was built and tested, and the experimental results compare favorably with the theoretical results. The level of the third order intermodulation distortion is found to be at least 30 dB below the interfering signal level.
A Simulation Study Of Guest Procedures In A Resort Hotel Complex, Bradley Barraclough
A Simulation Study Of Guest Procedures In A Resort Hotel Complex, Bradley Barraclough
Retrospective Theses and Dissertations
At this time there is an increasing emphasis in Florida on developing large, multipurpose complexes which include shopping, entertainment, and accommodations for tourists. In all cases a major design problem is people transportation. For best efficiency the primary mode of transportation, the car, must be exchanged for other people movers within the complex, which will afford more security, flexibility, and better movement of people to their ultimate destination. Economically speaking, this would not only conserve fuel, but would allow consolidation of automobile parking into a less desirable area and the grouping of facilities for more shopping and recreation convenience. An …
A Design Report On A Servo Controlled Inertial Sensor Test Fixture, James B. Dowdle
A Design Report On A Servo Controlled Inertial Sensor Test Fixture, James B. Dowdle
Retrospective Theses and Dissertations
This report discusses the design of a servo controlled positioning system for remote control positioning of inertial sensors while under high acceleration test in a centrifuge. A rotating fixture and an electronic control panel was built for this purpose, with two modes of operation. The fixture can be positioned with an accuracy of 0.05 degrees and a resolution of 0.01 degrees, or it can be maintained in a constant velocity mode at rates from 1 to 16 degrees per second. The velocity loop was implemented as a phase locked loop, and the command rate is entered as a frequency - …
Development Of A Dme Simulator, Robert W. Brown
Development Of A Dme Simulator, Robert W. Brown
Retrospective Theses and Dissertations
This report summarizes the design of a DME (Distance Measuring Equipment) simulator to be used in the testing of an Area Navigation System. The purpose of the simulator is to generate a signal representing an aircraft's distance from a ground station. This information is in the form of two pulses whose separation represents that elapsed transmission time for an aircraft to receive a reply from the ground station to an interrogation by the aircraft. The pulse spacing must be selectable as fixed distances for static tests and as distance changing at a constant rate to simulate flying to or from …
A System Dynamics Model To Test Urban Transportation Policy Alternatives, John Paul Burtle
A System Dynamics Model To Test Urban Transportation Policy Alternatives, John Paul Burtle
Retrospective Theses and Dissertations
This study investigates the structure of urban transportation systems, the bases of commuter mode selection, and the effects of alternate transportation system management policies. The study was based on the hypothesis that changes in transportation system management policies are possible which will significantly increase the demand for public transportation in urban areas.
A Gpss/360 Computer Model For Simulation Of Automobile Traffic At Road Intersections, Igor V. Golovcsenko
A Gpss/360 Computer Model For Simulation Of Automobile Traffic At Road Intersections, Igor V. Golovcsenko
Retrospective Theses and Dissertations
No abstract provided.
System Dynamic Studies In Epidemiology (Deterministic), William Edward Lewis
System Dynamic Studies In Epidemiology (Deterministic), William Edward Lewis
Retrospective Theses and Dissertations
No abstract provided.
A High Speed Pulse Code Laser Diode Modulator, John Lawrence Mcdonough
A High Speed Pulse Code Laser Diode Modulator, John Lawrence Mcdonough
Retrospective Theses and Dissertations
This research report reviews the basics of pulse code modulation (PCM) techniques and includes a special encoder design for a system which uses a laser diode output for the transmitted pulse. The text discusses PCM and its features, PCM formats, synchronization, and various accepted PCM codes. The encode circuit design is complete with a description of the circuit, circuit components, and operation. Included are the necessary diagrams, figures, specifications, and parts list. The transmitted output of the design circuit has a repetition rate of one megabit per second.
A Dynamic Simulation Of The Gasoline Distribution System During Periods Of Normal And Restricted Availability, Sheriar R. Bamasi
A Dynamic Simulation Of The Gasoline Distribution System During Periods Of Normal And Restricted Availability, Sheriar R. Bamasi
Retrospective Theses and Dissertations
No abstract provided.
Image Analysis And Improvement Of A Point Light Source Visual Flight Simulator, Steve K. Butrimas
Image Analysis And Improvement Of A Point Light Source Visual Flight Simulator, Steve K. Butrimas
Retrospective Theses and Dissertations
It has long been desired to simulate a non-preprogrammed controllable visual scene of the real world in a limited area for the purpose of training, in particular for aviation training. There presently exists a point light source projection system designed to accomplish this, however due to physical limitations, the display image, as compared to the corresponding real world scene which is being simulated, is somewhat distorted and limited. This point light source system is analyzed to determine the distortions and deviations from reality and methods are proposed to improve the display by minimizing the distortions and deviations.
A Special Purpose Modem Design, William Lester Schulte
A Special Purpose Modem Design, William Lester Schulte
Retrospective Theses and Dissertations
A special purpose modem has been designed to fill the interface requirements peculiar to RCA's DatawayTmk hotel/motel data management system. The modem interface operates on dedicated telephone quality wiring over distances up to 4000 feet using frequency shift keying. A data rate of 2880 bits per second is achieved through the interface. This report discussed the requirements of the interface and details the worst case design of the modem transmitter and receiver sections. The approach used relies heavily upon the use of digital logic circuitry in the modulation and demodulation of the FSK signals.
A Solid State Transducer For Monitoring Pipeline Cathodic Protection Voltages, Jon Robert Bartell
A Solid State Transducer For Monitoring Pipeline Cathodic Protection Voltages, Jon Robert Bartell
Retrospective Theses and Dissertations
No abstract provided.
Development Of A Remote Sound Monitoring System, Joseph Owen Ellis
Development Of A Remote Sound Monitoring System, Joseph Owen Ellis
Retrospective Theses and Dissertations
This report explains the development of a sound measuring system for continuous monitoring of sound levels. Dedicated telephone lines are used for data transmission so that sound level data can be monitored at installations far from the area of concern. This allows the sound sensing equipment to be left unattended and thereby greatly reduces the manpower costs of operation. That predetermined data conditions can be detected when they occur and corrective action can be taken immediately at the data receiving installation further justifies the method used. Background information and general need for such a system are discussed. Growing public concern …
Design Considerations For Extended Aeration-Denitrification Facilities, Frank Paul Huttner
Design Considerations For Extended Aeration-Denitrification Facilities, Frank Paul Huttner
Retrospective Theses and Dissertations
Design considerations and operating procedures were investigated for nitrogen removal in an extended aeration-denitrification facility. Both past and present removal efficiencies were evaluated for the facility, along with capital and operating cost data. The findings of this research indicate that at very long detention times, significant nitrification and denitrification occurred in the plant without the use of chemicals. Overall nitrogen, BOD5, and suspended solids removals were extremely high. The significance of this research is that future plants may achieve high rates of nitrogen removal through innovative design and operating procedures without the use of costly chemicals. However, capital costs needed …
A Proximity Vehicle Locator System, Bradley Everett Thompson
A Proximity Vehicle Locator System, Bradley Everett Thompson
Retrospective Theses and Dissertations
The purpose of this paper is to discuss the design, construction and operation of the proximity vehicle locator system prototype developed for the Orlando Police Department. The objective of the project itself was to provide the O.P.D. with a simple but effective system by which constant surveillance of patrol car locations could be maintained, thus improving the department's operational efficiency. Each unit designed specifically for use in this project will be discussed in some detail, while those purchased locally for use in the project will be only briefly described, as pertaining to their functional importance to the system. In addition, …
Steady State Oscillations In Switching Regulated Dc To Dc Power Supplies, Jayant Gajanan Vaidya
Steady State Oscillations In Switching Regulated Dc To Dc Power Supplies, Jayant Gajanan Vaidya
Retrospective Theses and Dissertations
No abstract provided.
Intermodulation Analysis Of Class C Transistorized Amplifiers With Applications To V.H.F. Amplifiers, Robert Hopkins Wollam
Intermodulation Analysis Of Class C Transistorized Amplifiers With Applications To V.H.F. Amplifiers, Robert Hopkins Wollam
Retrospective Theses and Dissertations
The paper discusses the theoretical analysis and the experimental work done to describe the cause of intermodulation distortion in class C transistorized amplifiers. A mathematical basis for the intermodulation was derived using a single frequency input and a second frequency introduced into the output of the amplifier. It was followed by experimental work performed to justify the theory. These experiments used both pulsed and sinusoidal drives as amplifier inputs. Also, a feedback method along with the transistor's operating point was shown to reduce the intermodulation distortion produced by the amplifier. Finally, a short discussion on the results and some of …
Analysis Of A Portable, One Hundred Ampere Pulse Test Current Microhmmeter, John Marshall Allred
Analysis Of A Portable, One Hundred Ampere Pulse Test Current Microhmmeter, John Marshall Allred
Retrospective Theses and Dissertations
This report is an analysis of the Model RT-2 Microhmmeter which is a portable apparatus using a pulse current power source in the measurement of load resistances in the microhm range. The need for accurately measuring resistances in the microhm range is quite real for testing electrical power circuit breaker contact resistance. Both during acceptance checking within the manufacturing process and in the field for preventative maintenance, contact resistance must be accurately determined. Before the invention of the Model RT-2 Micrometer, no device existed which could accurately measure resistances in the microhm range that was readily transported by an unaided …
A Predictive Model For Manpower Allocation In A Solid Waste System, Robert M. Anthony
A Predictive Model For Manpower Allocation In A Solid Waste System, Robert M. Anthony
Retrospective Theses and Dissertations
No abstract provided.
Application Of Computer War Gaming In The Evaluation Of Missile Performance Requirements For Air To Air Engagements, Joy F. Berman
Application Of Computer War Gaming In The Evaluation Of Missile Performance Requirements For Air To Air Engagements, Joy F. Berman
Retrospective Theses and Dissertations
No abstract provided.
A Military Training System Perspective And Model For Training Program Management, Alvin J. Boudreaux
A Military Training System Perspective And Model For Training Program Management, Alvin J. Boudreaux
Retrospective Theses and Dissertations
A perspective of the Naval Education and Training System (NETS) is developed and utilized as a framework on which a simulation model of general training system activities is constructed. The simulation model, which is based on functional activities, emphasizes the interdependent consequences of decisions and actions created through management planning, analysis, and control of training programs. A simulation experiment was conducted using a test situation description (scenario) to reflect the impact of management decisions and actions on the resulting allocation of resources and timeliness of training program activities. Conclusions are drawn regarding the utility and implications of the system dynamics …
A Comparison Of N-Path And Digital Filters For Band Pass Applications, Stephen Cooperman
A Comparison Of N-Path And Digital Filters For Band Pass Applications, Stephen Cooperman
Retrospective Theses and Dissertations
The classic problem of achieving high Q, band pass, inductorless filters has been traditionally attacked by applying active RC networks. This approach suffers from the faults of poor economy, lack of stability of performance with time and temperature, and high network performance sensitivity to component changes. The problem is reviewed from the aspect of applying techniques other than operational amplifier RC filters. The techniques presented are those of N-Path (switching) and Digital Filters. The underlying theory of both methods is explored and a design example for each of the techniques is presented. These designs are then compared on the basis …
Cost/Schedule Control Criteria For Selected Government Contracts, Robert Mcdowell Hammond
Cost/Schedule Control Criteria For Selected Government Contracts, Robert Mcdowell Hammond
Retrospective Theses and Dissertations
This report presents and interprets the Cost/Schedule Control System Criteria, management techniques which have been determined by the Department of Defense to represent appropriate methods for adequately controlling program costs and schedules. Applied to selected contracts of significantly large dollar value, these standards provide for a system which affords the contractor the ability for effective program management and the customer sufficient output visibility for proper program progress evaluation. These criteria differ from typical management methods in that they include a means for assessing the value of completed work in terms of its planned cost. Comparing this with the planned cost …