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Articles 6841 - 6870 of 7318
Full-Text Articles in Entire DC Network
Evaluation Of City And Region Planning Techniques, Charles Clay Miller
Evaluation Of City And Region Planning Techniques, Charles Clay Miller
Masters Theses
"The transportation and community planning effort in the United States has resulted in the expenditure of a great deal of time and money. However, the result of this effort has largely been unusable because of a lack of an effective formalized planning method. this thesis presents summarizations of the planning methods employed in ten plans which are typical of the U.S. Planning Effort. Each of these methods are critiqued in the light of a proposed planning method. The Federal Government has recently required the adoption of a Planning, Programming and Budgeting System (PPBS) in an effort to formalize a scientific …
Design And Construction Of A Velocity Control System For A Low Turbulence, Vertical Wind Tunnel, Lawrence Vehslage Field
Design And Construction Of A Velocity Control System For A Low Turbulence, Vertical Wind Tunnel, Lawrence Vehslage Field
Masters Theses
"A low velocity (0 - 11m/sec), low turbulence vertical atmospheric wind tunnel has been designed and built by Inca Engineering Company of San Gabriel, California. This tunnel was assembled in the Cloud Physics Research Center at UMR. The tunnel is designed to aid in the study of phenomena associated with water drops suspended in a vertical air stream. This thesis describes the design and construction of the velocity control system for this tunnel. Constant speed, centrifugal fans are used to draw air through the tunnel. To allow these fans to operate at a constant efficiency, a valve system is used …
Mass Spectrometric Study Of "Anomalous" Water, Bernard Jean Bouy
Mass Spectrometric Study Of "Anomalous" Water, Bernard Jean Bouy
Masters Theses
"Considerable interest has developed recently in a material called "polywater" or "anomalous water". This material has properties quite different from those normally associated with liquid water. The purpose of this study is to give some mass spectrometric observations of "polywater". The "polywater" samples were produced within silica capillaries. These capillaries were heated by means of a helical coil to vaporize the "polywater". The vapor was directed into the source of a mass spectrometer. The results of this study show that a significant portion of the "anomalous water" samples is composed of a polymer of dimethylsiloxane. To date, the observations are …
The Radial Distribution Curve Of "Anomalous" Water By X-Ray Diffraction, Jerome Dechelette
The Radial Distribution Curve Of "Anomalous" Water By X-Ray Diffraction, Jerome Dechelette
Masters Theses
"Amorphous and liquid samples, believed to be "anomalous" water were studied by X-ray diffraction. A diffusion ring, characteristic of liquids and glass was observed at Θ =10.5º. For purposes of comparison an X-ray diffraction pattern was obtained for pure water under nearly identical conditions. By means of a microdensitometer, X-ray intensity curves were prepared from the diffraction patterns and corrected for absorption and polarization. From the Fourier transform of the intensities, we obtained the radial distribution curves. The radial distribution curve for water, obtained in previous work, shows an initial peak at 2.9Å. This peak is due to the nearest …
A Comparative Study Of Experimental And Computed Compressibility Factors Of Methane-Nitrogen-Carbon Dioxide System, Piloo Eruchshaw Ilavia
A Comparative Study Of Experimental And Computed Compressibility Factors Of Methane-Nitrogen-Carbon Dioxide System, Piloo Eruchshaw Ilavia
Masters Theses
"Experimentally determined compressibility factors of a natural gas with impurities like carbon dioxide and nitrogen are found to differ with the values computed by various methods making use of compositional breakup of the gas. Compressibility factors for five mixtures of known composition were experimentally determined at room temperature, 100ºF, 125ºF, and 150ºF, and at pressure ranging between 1000 psi to 4000 psi. Using the known composition of the mixtures, compressibility factors were calculated by additive volume method and by Eilerts method. The deviation between computed and experimentally determined compressibility factors are at a maximum in the lower and higher pressure …
Enhanced Evaporation Of Water Droplets Due To Surface Contamination, Robert Bernard Hughes
Enhanced Evaporation Of Water Droplets Due To Surface Contamination, Robert Bernard Hughes
Masters Theses
"Experimental evidence for enhanced evaporation of small (3-9 µ radius) water droplets are presented. Both "pure" droplets and droplets contaminated with surface active materials fell into air of known relative humidity (96-99 per cent) at an ambient temperature of 29.9C and evaporated. The rates of evaporation were determined by photographing the evaporating drops, measuring the distance a drop fell during a fixed time interval, and applying Stokes law. The contaminated droplets exhibited a rate of evaporation 1.8µ² sec⁻¹ faster than "pure" drops. This can be compared with rates for pure drops of 1.9 and 5.7µ² sec⁻¹ at 0.1 and 0.3C …
An Analysis Of A Synchronization Scheme For 180° Biphase Modulated Signals, James Joseph Spence
An Analysis Of A Synchronization Scheme For 180° Biphase Modulated Signals, James Joseph Spence
Masters Theses
"The problem of analyzing a synchronization system for demodulation of 180° biphase modulated signals is considered in this thesis. The system considered utilizes the so-called squaring loop technique. Techniques derived from the theory of Markov processes are utilized in the analysis of the system. In particular the "fluctuation equation" approach for non-Markovian processes is used. After the analysis of the system is performed, an expression fro the bit error probability is obtained from knowledge of the phase error density function"--Abstract, Page ii.
Z-Form Solution Of Non-Linear Differential Equations, Allen Joseph Rushing
Z-Form Solution Of Non-Linear Differential Equations, Allen Joseph Rushing
Masters Theses
"The "Z-Forms" developed by Boxer and Thaler from Z-Transform theory are reviewed. Iteration is shown to increase accuracy when Z-Forms are used to obtain numerical solutions to some non-linear differential equations. Machine results are presented for example problems. Error estimates and convergence conditions are discussed. The method is usable only when 2- or 3-digit accuracy is acceptable. For some classes of equations the Z-Form method compares favorably to other numerical methods in time required to set up the problem and in machine time required for solution--Abstract, Page ii.
On-Line Digital Computer Decoding Of Radio Teletype, Julio Alberto Spiegel
On-Line Digital Computer Decoding Of Radio Teletype, Julio Alberto Spiegel
Masters Theses
"Digital computer data processing is one of the newest and fastest growing technologies. The large amount of data that can be processed is practically beyond the limit of human possibilities when available time, cost and reliability of results are taken into consideration. The use of on-line digital computer data processing to decode Radio Teletype is investigated in this thesis. The first part of this thesis considers existing teletype systems and related systems, such as Pulse Code Modulation, pointing out the differences between synchronous and asynchronous codes. The most critical step in decoding Radio Teletype is synchronization, since Radio Teletype makes …
Modified Method Of Linear Associative Retrieval, James Donald Byrd
Modified Method Of Linear Associative Retrieval, James Donald Byrd
Masters Theses
"It is becoming increasingly important for those in decision making positions to have the most current and accurate data possible as related to their particular needs. Although there are several well known retrieval techniques available an intensified effort is being made at many installations to provide a retrieval system that will supply the demands of their own needs. One well known approach to the solution of information retrieval is linear associative retrieval. The solution that has been proposed requires several computer runs on some requests and therefore is very time consuming. The author has implemented a method to eliminate unnecessary …
A Proposed Concept For The Rapid Field Design Of Protective Structures, John Ross Childress
A Proposed Concept For The Rapid Field Design Of Protective Structures, John Ross Childress
Masters Theses
"This investigation proposes a simplified concept for the rapid field design of protective structures, subject to attack by conventional artillery rounds, mortar rounds and small rockets. Parameters which should be considered during a rigorous design process are discussed. The number and complexity of these parameters make the rigorous design procedure too unwieldy to be efficiently used, in a limited time period, when materials are not available to comply with Standard Designs. Since the duration of an explosion pulse is very short and uncompacted soil is capable of absorbing explosive energy, this study investigates the theory that adequate protection can be …
A Study Of The Effects Of Added Solid-Liquid Interfacial Area On The Stabilization Characteristics Of Simulated Wastewater Stabilization Lagoons, Gary Lee Gaines
A Study Of The Effects Of Added Solid-Liquid Interfacial Area On The Stabilization Characteristics Of Simulated Wastewater Stabilization Lagoons, Gary Lee Gaines
Masters Theses
"Wastewater stabilization lagoons have recently become a popular and efficient method of sewage stabilization in many parts of the country. The purpose of this investigation was to determine the effect of added solid-liquid interfacial area on the treatment capabilities of simulated wastewater stabilization lagoons. The simulated lagoons consisted of six -15 gallon aquariums which were operated in the laboratory. The solid-liquid interfacial area was increased in four of these lagoons by suspending plastic panels in the aquariums. The lagoons were operated for a period of approximately two and a half months using dehydrated milk as a simulated waste substrate. During …
Computer Time-Sharing (T-S) "An Engineering Tool" For The Engineering Applications Of The Small Company, James Binford Summers
Computer Time-Sharing (T-S) "An Engineering Tool" For The Engineering Applications Of The Small Company, James Binford Summers
Masters Theses
"The objectives of this investigation were to illustrate the capabilities of the time-sharing (T-S) industry, identify the means by which the small sized company, with a need to solve engineering problems, can best be served through T-S, and to present T-S to these potential users. Investigation was made of distinctive T-S services to formulate a composite of the T-S industry. Examples of three distinctive T-S services were used within this composite to exemplify the variations of services within the industry. The methods a small company could use to utilize computer services were identified emphasizing T-S as the method best suited …
The Dinary Numerical System And Its Applications To Modern Parallel Processing Computers, Hai Chi Koo
The Dinary Numerical System And Its Applications To Modern Parallel Processing Computers, Hai Chi Koo
Masters Theses
"The Dinary Numerical System (DNS) is an extension of Binary Numerical System. By utilizing the newly developed Large-Scale-Integration technology, DNS can be implemented as a new concept of computer organization which has the merits of parallel processing. DNS consists of three field elements: they are -1, 0, and +1. Since DNS representation is not necessarily unique, new algorithms to generate the number of representations and all equivalent representations are presented in this paper. A Block-Oriented-Computer (BOC) is developed as an array of computing systems. For each of the systems, the arithmetic unit is essentially a modified Digital Differential Analyzer. The …
A Comparative Study Of Experimental And Computed Compressibility Factors Of Ethane-Carbon Dioxide-Nitrogen System, Brij Raj Misra
A Comparative Study Of Experimental And Computed Compressibility Factors Of Ethane-Carbon Dioxide-Nitrogen System, Brij Raj Misra
Masters Theses
"The purpose of this study was to provide compressibility factor data on the ethane - carbon dioxide - nitrogen system. Compressibility factors were experimentally determined for 5 mixtures at room temperature, 100ºF, 125ºF , 150ºF and pressures ranging between 1000 psig to 4000 psig. An attempt was also made to compare the experimental data with the compressibility factors obtained by the additive volume method. The deviation of the computed compressibility factor from the experimental data was found to be in accordance with the general view of previous workers. However, the deviation was found to be a maximum in the pressure …
Fracture Surface Energy Determinations Of High Density Polycrystalline Ceramics, Gene Arthur Pahlmann
Fracture Surface Energy Determinations Of High Density Polycrystalline Ceramics, Gene Arthur Pahlmann
Masters Theses
"Values of fracture surface energy were measured for steatite, zircon, mullite and four densities of alumina. Rods of these high density materials were cut into thin rectangular specimens which were notched and broken in three-point loading. The resulting load necessary for fracture of the specimens was used to calculate the fracture surface energy of the materials. The value for the steatite was around 20,000 ergs/cm². The values for the zircon and mullite were on the order of 13,000 ergs/cm², and the values for the aluminas ranged from 17,000 to 24,000 ergs/cm²"--Abstract, page ii.
Petrology And Diagenesis Of The Cyclic Maquoketa Formation (Upper Ordovician) Pike County, Missouri, Edwin Carl Kettenbrink Jr.
Petrology And Diagenesis Of The Cyclic Maquoketa Formation (Upper Ordovician) Pike County, Missouri, Edwin Carl Kettenbrink Jr.
Masters Theses
"The Maquoketa Formation (Upper Ordovician-Cincinnatian Series) has been extensively studied for over one hundred years, but a petrographic study of its cyclic lithologies has been neglected. The following six distinct Maquoketa lithologies have been recognized in this study in Pike County, Missouri: 1) phosphatic biosparite, 2) phosphorite, 3) micrite-microsparite, 4) dolomitic shale, 5) dolomitic marlstone, and 6) dolomitic quartz siltstone. Three cycle types are present in the Maquoketa. They are expressed as thin beds (1-20 inches) of alternating micrite-shale, micrite-marlstone, and shale-siltstone. Contacts between different lithologies are sharp, indicating a primary sedimentological origin for the cycles. Precisely what mechanism was …
History And Symbol In Hugh Of Saint-Victor, Thomas M. Mcelmeel
History And Symbol In Hugh Of Saint-Victor, Thomas M. Mcelmeel
Masters Theses
No abstract provided.
Preparation And Lead Tetraacetate Oxidation Of Aldehydic Hydrazones, Alan J. Quarfoot
Preparation And Lead Tetraacetate Oxidation Of Aldehydic Hydrazones, Alan J. Quarfoot
Masters Theses
No abstract provided.
Staff Perceptions Of Psychiatric Patients In Relation To Disruptive Behavior, Thaddeus I. Stachowiak
Staff Perceptions Of Psychiatric Patients In Relation To Disruptive Behavior, Thaddeus I. Stachowiak
Masters Theses
No abstract provided.
A Study Of Some Matrix Elements For The Four-Pion Decay Mode Of Neutral Bosons, George Victor Weller
A Study Of Some Matrix Elements For The Four-Pion Decay Mode Of Neutral Bosons, George Victor Weller
Masters Theses
No abstract provided.
An Analysis Of The Comparative Effectiveness Of Day Center Treatment And Out-Patient Treatment For A Psychiatric Population, John T. Gallagher
An Analysis Of The Comparative Effectiveness Of Day Center Treatment And Out-Patient Treatment For A Psychiatric Population, John T. Gallagher
Masters Theses
No abstract provided.
British And American Strategy In The European Theater Of Operations December 1941 To August 1944, Ronald A. Refior
British And American Strategy In The European Theater Of Operations December 1941 To August 1944, Ronald A. Refior
Masters Theses
No abstract provided.
Generalization Effects Of Verbal Conditioning In Chronic Schizophrenics, James Larry Tichenor
Generalization Effects Of Verbal Conditioning In Chronic Schizophrenics, James Larry Tichenor
Masters Theses
No abstract provided.
Kinetic Studies Of The Cell Elongation Phenomenon In Etiolated Pisum Stem Segments, Grant M. Barkley
Kinetic Studies Of The Cell Elongation Phenomenon In Etiolated Pisum Stem Segments, Grant M. Barkley
Masters Theses
The short-term growth response of etiolated pea stem segments (Pisum sativum L., var. Alaska) was investigated using a high-resolution growth recording device. The immediate effect of treatment with indoleacetic acid (IAA) is an inhibition of growth. This inhibition lasts about 10 minutes and then the rate of elongation rises abruptly to a new steady rate about 4 times the rate of elongation before auxin treatment. This rapid steady rate of elongation, however, continues for only about 22 minutes before declining suddenly to a lower steady rate of growth about 2 times the rate of elongation before the addition of auxin. …
Angular Correlation Of Positron Annihilation Radiation In Damaged Nickel And Iron, Hsien Chen Huang
Angular Correlation Of Positron Annihilation Radiation In Damaged Nickel And Iron, Hsien Chen Huang
Masters Theses
No abstract provided.
An Attempt To Manipulate The Results Of A Psychomotor Learning Task, Robert D. Cable
An Attempt To Manipulate The Results Of A Psychomotor Learning Task, Robert D. Cable
Masters Theses
No abstract provided.
History And Archetypes A Critique Of Mircea Eliade's Philosophy Of History As Applied To A Study Of Spatial Orientation In Dante, Marilyn J. Hughes
History And Archetypes A Critique Of Mircea Eliade's Philosophy Of History As Applied To A Study Of Spatial Orientation In Dante, Marilyn J. Hughes
Masters Theses
No abstract provided.
Skeletal Pathology In The Kenya Baboon, Ronald R. Copping
Skeletal Pathology In The Kenya Baboon, Ronald R. Copping
Masters Theses
No abstract provided.
A Cinematographical Analysis Of Selected Factors Affecting The Efficient Performance Of The Back Somersault In Floor Tumbling, John W. Newton
A Cinematographical Analysis Of Selected Factors Affecting The Efficient Performance Of The Back Somersault In Floor Tumbling, John W. Newton
Masters Theses
No abstract provided.