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Full-Text Articles in Entire DC Network
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 …
Mixing Effects On Shallow Water Bodies, Kim Robin Powell
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
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
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
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
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
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
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
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
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
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 …
Numerical Taxonomy Of Anaerobic Bacteria Isolated From Ground Water Of A Sanitary Landfill, Kenneth J. Curry
Numerical Taxonomy Of Anaerobic Bacteria Isolated From Ground Water Of A Sanitary Landfill, Kenneth J. Curry
Retrospective Theses and Dissertations
Section I: Facultative and obligatory anaerobic bacteria were isolated from the ground water of a sanitary landfill characterized by sandy soil and a periodically high water table. Isolates were examined for 63 characteristics and subject to numerical analysis. Eight clusters were established and correlations with conventional taxonomy were made. The Bacteriodaceae were found to be the dominant group of organisms by the methods employed. The anaerobic population was observed to decrease as the period of seasonal rainfall ended. At the same time, gram positive anaerobes were largely replaced with gram negative ones. Leaching between sampling sites (wells) made correlations between …
Effects Of High Speed Dental Drill Noise On Heart Rate In Normal Hearing Adult Males, Thomas T. Bunn
Effects Of High Speed Dental Drill Noise On Heart Rate In Normal Hearing Adult Males, Thomas T. Bunn
Retrospective Theses and Dissertations
No abstract provided.
Nonverbal Behavior During Constrained Verbal Communication, Manual Isidor Bolanos
Nonverbal Behavior During Constrained Verbal Communication, Manual Isidor Bolanos
Retrospective Theses and Dissertations
No abstract provided.
Relationship Of Speechreading Performance And Facial Hair, Ronald Goluba
Relationship Of Speechreading Performance And Facial Hair, Ronald Goluba
Retrospective Theses and Dissertations
No abstract provided.
The Effects Of Opinion Certainty, Counterattitudinal Advocacy, And Salience Of Initial Attitude Upon Attitude Change, Jack Alan Haight
The Effects Of Opinion Certainty, Counterattitudinal Advocacy, And Salience Of Initial Attitude Upon Attitude Change, Jack Alan Haight
Retrospective Theses and Dissertations
No abstract provided.
An Economic Base Study Of Brevard County, Florida, Bruce N. Joseph
An Economic Base Study Of Brevard County, Florida, Bruce N. Joseph
Retrospective Theses and Dissertations
No abstract provided.
Cyclic Patterns Of Central Florida Sooty Mold, Bobby Ray Pohlad
Cyclic Patterns Of Central Florida Sooty Mold, Bobby Ray Pohlad
Retrospective Theses and Dissertations
This study was conducted to record seasonal variations in the epiphyllous sooty mold colonies found on citrus leaves in two central Florida citrus groves, to determine basic patterns of fungal growth throughout the year and to determine whether these general patterns are correlated with regional climatological data. The results indicated general seasonal variations in the reproductive units of five of the fungi from the colony. In the study, correlations were seen between the two Ascomycetes, Treubiomyces pulcherrimus and Trichomerium didymopanacis. They were found fruiting most abundantly during the winter and spring. Reproductive units of two asexual sooty mold species (Podoxyphium …
Influence Of Irrelevant Cues And Alternate Forms Of The Graphic Rating Scale On The Halo Effect, William A. Rizzo
Influence Of Irrelevant Cues And Alternate Forms Of The Graphic Rating Scale On The Halo Effect, William A. Rizzo
Retrospective Theses and Dissertations
No abstract provided.
The Relationship Between Recruitment And Masking, Charles Solomon
The Relationship Between Recruitment And Masking, Charles Solomon
Retrospective Theses and Dissertations
No abstract provided.
A Serological Survey Of Greater Orlando Human, Canine, And Feline Populations For The Presence Of Antibodies To Toxoplasma Gondii, John Louis Weihe
A Serological Survey Of Greater Orlando Human, Canine, And Feline Populations For The Presence Of Antibodies To Toxoplasma Gondii, John Louis Weihe
Retrospective Theses and Dissertations
Toxoplasma gondii, the etiological agent of toxoplasmosis, was first discovered in Ctenodactylus gondi, an small North African rodent, by Nicolle and Manceaux in 1908. Later the same year Splendore observed the organism in a laboratory rabbit. Human infection was first reported by Janku in 1923. Since its discovery, many investigations have shown the organism to be truly unique in the protozoan world. There appears to be only one species and only one serotype. Serologic and microscopic studies reveal Toxoplasma to have a vast host range. At least one representative of virtually every mammalian species tested harbored the parasite or showed …
An Immunological Approach To The Study Of The Tumorous-Head Trait In Drosophila Melanogaster, Patricia Neuhaus Weihe
An Immunological Approach To The Study Of The Tumorous-Head Trait In Drosophila Melanogaster, Patricia Neuhaus Weihe
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 …
"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.
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 …
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.
Immunological Studies Of The Host Parasite Relationship Of Dirofilaria Immitis In Domestic Canines, Douglas Felton Qualls
Immunological Studies Of The Host Parasite Relationship Of Dirofilaria Immitis In Domestic Canines, Douglas Felton Qualls
Retrospective Theses and Dissertations
Canine immunoglobulins of the IgG group were shown to be intimately associated with the cuticle of circulating non-infection Dirofilaria immitis microfilaria. The significance of these immunoglobulins in blocking a complete immune response in the definitive host is discussed. Immunodiffusion, immunoelectrophoresis and fluorescent inhibition techniques are described and their applicability to the study of host-parasite relationships are evaluated. A rapid reproducible method for the production of specifically labeled anti-D. immitis microfilaria globulins is presented.
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 …
The Effects Of Time-Expanded Speech On Intelligibility For Normals As Compared To The Mentally Retarded, Patricia Hall Smith
The Effects Of Time-Expanded Speech On Intelligibility For Normals As Compared To The Mentally Retarded, Patricia Hall Smith
Retrospective Theses and Dissertations
No abstract provided.
Personal Space As A Function Of Sex And Locale, Katherine Valletta Soukup
Personal Space As A Function Of Sex And Locale, Katherine Valletta Soukup
Retrospective Theses and Dissertations
No abstract provided.