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Articles 10771 - 10800 of 12097
Full-Text Articles in Entire DC Network
Estimation Of Film Boiling Heat Transfer Coefficients For Cylindrical Heaters In Corresponding States Fluids, Gary Joseph Capone
Estimation Of Film Boiling Heat Transfer Coefficients For Cylindrical Heaters In Corresponding States Fluids, Gary Joseph Capone
Masters Theses
"An investigation of film boiling heat transfer was made with cylindrical heaters. The (0.75" O.D.) gold plated, copper heaters were positioned horizontally in pools of liquid argon, nitrogen, and carbon monoxide. A correlation for film boiling corresponding states fluids is derived and discussed. The correlation is a least squares fit of three variables: the diameter of the cylindrical heater, the reduced pressure of the system, and the temperature difference between the heater surface and the saturated pool"--Abstract, page iii.
A Development Of Regression Models For Predicting Temperature, Salinity And Sound Velocity In Sea Water, Darwin Wayne Brown
A Development Of Regression Models For Predicting Temperature, Salinity And Sound Velocity In Sea Water, Darwin Wayne Brown
Masters Theses
"There are in existence today some reasonably good numerical procedures for predicting sound velocity, but these procedures require that certain initial data such as temperature and salinity be given before a sound velocity may be computed. Eliminating the need for on-location observations of temperature and salinity, which are used in computing sound velocity, was the primary objective of this study. Stepwise multiple regression was applied in the search for suitable models to predict temperature and salinity, and ultimately sound entirely in terms of controllable variables, such as latitude, longitude, depth, and day-of-year"--Abstract, page ii.
Magnetic After-Effects In Dilute Transition Metal Alloys, Robert Henry Graham
Magnetic After-Effects In Dilute Transition Metal Alloys, Robert Henry Graham
Masters Theses
"Temperature dependent after-effects of the initial permeability in ternary dilute ferromagnetic iron-base alloys were studied in the temperature range of -50°C to +30°C. Interstitial carbon and nitrogen were the diffusing elements. Nominal percentages of the substitutional transition elements manganese, chromium, vanadium and titanium were added to determine the extent of substitutional-interstitial pair interactions. No additional temperature dependent after-effect of the initial permeability was noticed in Fe- substitutional -C alloys, while such after-effects were present in Fe- substitutional -N alloys. Magnetic after-effect data were analyzed on the basis of single Debye relaxations. Relaxation times for carbon and nitrogen diffusion in alpha-iron …
Mineralization Of The Boss Bixby Anomaly, Iron And Dent Counties, Missouri, Frederick Joseph Smith
Mineralization Of The Boss Bixby Anomaly, Iron And Dent Counties, Missouri, Frederick Joseph Smith
Masters Theses
"The Boss-Bixby deposit is located on the line dividing Iron and Dent Counties and belongs to the Southeast Missouri Precambrian Iron Metallogenic Province. The sequence of events leading to the formation of the deposit is reviewed. The mineralization occurred after intrusion of intermediate magma, but prior to the intrusion of granite. The ore minerals present are the following in the order of deposition: magnetite, ilmenite, giekielite, hematite, rutile, pyrite, molybdenite, cobaltite, chalcopyrite, bornite, sphalerite, galena, limonite, chalcocite, and cuprite. Four different methods of zoning are presented. Partial pressures of oxygen and sulphur [sic], as well as temperature controlled sequential deposition …
A Method Of Supervised Pattern Recognition By An Adaptive Hypersphere Decision Threshold, Darroll Steven Mccormack
A Method Of Supervised Pattern Recognition By An Adaptive Hypersphere Decision Threshold, Darroll Steven Mccormack
Masters Theses
"In this study the Bayes likelihood detector is combined with an adaptive decision threshold classifier to solve the multicategory pattern recognition problem. It is assumed that the pattern classes can be represented by an n-dimensional vector sample taken from a multivariate gaussian probability distribution. This study presents (1) the derivation of the A̲daptive H̲ypersphere D̲ecision T̲hreshold classifier (AHDT classifier) and shows (2) how the AHDT classifier minimizes the probability of error using the learning patterns. Finally the AHDT classifier is applied to the solution of a physical problem through computer simulation"--Abstract, page ii.
A Simulation Of The Transistor By Computer Using The Linvill Diffusion Model, Clifford D. Skouby
A Simulation Of The Transistor By Computer Using The Linvill Diffusion Model, Clifford D. Skouby
Masters Theses
"This investigation involves the construction of an analog computer model of the transistor. The computer model is based upon the Linvill diffusion model. The equations for the Linvill diffusion model were programmed on the computer by making certain approximations. Different models, using different approximations, were used for the different regions of operation of the transistor. A composite analog model was constructed by combining the models for the restricted regions, giving a general model good for all regions of transistor operation. This analog diffusion model was modified to account for the effects of junction capacitance and base resistance. The modified analog …
Electric Field Investigations And A Model Of Electrical Spraying Of Liquids, Wallace Deshon
Electric Field Investigations And A Model Of Electrical Spraying Of Liquids, Wallace Deshon
Masters Theses
"The equation E = [2 V] [over] [N 1n(4d/N] has been used for determining the electric field at the liquid tip in electrical spraying of liquids. Data were taken at the instant of spraying in an attempt to experimentally verify this equation. The results indicate that the value given by the equation needs to be increased by about 20% in the normal range of operation. A model for the spraying mechanism of the liquid is also proposed"--Abstract, page ii.
Waveform Distortion Caused By A Plasma Sheath, James R. Carl
Waveform Distortion Caused By A Plasma Sheath, James R. Carl
Masters Theses
"A short burst of electromagnetic energy that propagates into and through a plasma medium can react with the plasma medium in several different ways depending on both the characteristics of the plasma and of the pulse. This thesis derives approximations for the plasma transfer function at low pressure (high altitude) and at high pressure (low altitude). The mechanisms that can change the shape of a waveform, in general, are dispersion and breakdown. dispersive distortion at low altitude is shown to exist for electron concentrations well above the resonant concentration for plasma sheaths that are thin compared to one wavelength. Several …
Solid State Squib Simulator, Ernest Paul Lee
Solid State Squib Simulator, Ernest Paul Lee
Masters Theses
"The simulators described in this paper allow checkout of the electrical control circuitry of pyrotechnic and related devices where the actual testing of the devices would be destructive. A simulator is described that is superior to the units now available for test purposes. Solid state components are used exclusively and hence it is very light weight and reliable. It is portable and requires no external power for indication of the control circuitry performance. The simulator presents a load that is adjustable between one and five ohms for a controlled length of time from one to one hundred milliseconds. Transients will …
Infrared Related Solid State Studies, Donald George Rathbun
Infrared Related Solid State Studies, Donald George Rathbun
Masters Theses
"Infrared reflectivity measurements have been made on single crystal CdS. Classical dispersion analysis has been used in an analysis of the data to obtain the index of refraction, the extinction index, and the dispersion parameters. These are compared with previously published results. The procedure used in this analysis has been outlined for future reference. Also, the shallow donor impurity theory has been used to numerically calculate the d±1 levels for Si and Ge. The theory is extended for the case of the impurity in the bulk semiconductor and the d₀, d±2 and, for high n, the s, p₀, …
Scattering Parameter Measurements And Amplifier Design, Thomas J. Herrick
Scattering Parameter Measurements And Amplifier Design, Thomas J. Herrick
Masters Theses
"The scattering parameter formulation in describing the small-signal operation of an active two-port device is developed. The inherent advantages of measuring the scattering parameters at UHF frequencies and the clear insight into the design problem are demonstrated. Some of the practical difficulties in a typical design problem are also considered"--Abstract, page ii.
A Study Of Bifeo₃ And The Hall Effect In Bifeo₃ And Cds, Fred Hoerger Taylor
A Study Of Bifeo₃ And The Hall Effect In Bifeo₃ And Cds, Fred Hoerger Taylor
Masters Theses
"Pure samples of BiFeO₃ were heat treated in oxygen and nitrogen atmospheres in an attempt to reduce the conductivity of the samples. Dielectric constant and dissipation factor measurements, as a function of frequency, were made to determine whether the samples had been altered. A special high temperature Hall effect apparatus was constructed. Using this apparatus an upper limit for the Hall mobility in BiFeO₃ was established. The apparatus was also used for room temperature measurements of Ga-doped CdS samples. Resistivity measurements to be used with the Hall effect results were made on both the BiFeO₃ and the CdS samples. Hot-Point …
Lateral Variations Of Carbonate Rock Adjacent To Ore Deposits In The Upper Mississippi Valley Zinc-Lead District, Wisconsin, Illinois, Iowa, Mehdi H. Mirbaba
Lateral Variations Of Carbonate Rock Adjacent To Ore Deposits In The Upper Mississippi Valley Zinc-Lead District, Wisconsin, Illinois, Iowa, Mehdi H. Mirbaba
Masters Theses
"The lateral variation and nature of carbonate host rock in the Upper Mississippi Valley zinc-lead district were petrographically studied within the McGregor and Quimbys Mill Members of the Platteville Formation of the Middle Ordovician System. These members are dolomitic limestone in the Upper Mississippi Valley district of southwestern Wisconsin, northwestern Illinois and northeastern Iowa. One hundred and twenty-seven specimens were collected or were available from pull drifts in the Shullsburg mine. The specimens were collected at regular intervals of 50 or lOO feet in seven pull drifts between eight ore bodies. Thin sections prepared from the carbonate specimens were studied, …
The Design Of A Molten Fueled, Vortex Reactor, For Use As A Rocket Propulsion Device, Robert Philip Schmitt
The Design Of A Molten Fueled, Vortex Reactor, For Use As A Rocket Propulsion Device, Robert Philip Schmitt
Masters Theses
"The purpose of this investigation is to design a nuclear reactor which can be used as a rocket propulsion device. The reactor investigated is fueled with a molten uranium-bismuth alloy and utilizes a two phase vortex flow principle. Hydrogen is employed as a coolant and rocket propellant. The hydrogen is heated directly by the fuel thus eliminating the need for heat exchangers. The major part of the investigation consists of a two group neutron diffusion study to show the operational feasibility of this type of reactor and to obtain an optimum design. the study shows that this type of reactor …
The Basic Conceptions Of Love Presented In The Novels Of Thornton Wilder, Susan Annette Champlin
The Basic Conceptions Of Love Presented In The Novels Of Thornton Wilder, Susan Annette Champlin
Masters Theses
No abstract provided.
An Indirect Spectrophotometric Method For Expansion Of The Optimum Concentration Range, Henry David Mitchell
An Indirect Spectrophotometric Method For Expansion Of The Optimum Concentration Range, Henry David Mitchell
Masters Theses
No abstract provided.
A Review Of The Short Forms Of The Wechsler Intelligence Scale For Children, Edward Gerald Tava
A Review Of The Short Forms Of The Wechsler Intelligence Scale For Children, Edward Gerald Tava
Masters Theses
No abstract provided.
Some Effects Of Discrimination Training On A Line Length Dimension, John Pokrzywinski
Some Effects Of Discrimination Training On A Line Length Dimension, John Pokrzywinski
Masters Theses
No abstract provided.
Effect Of Nitrogen Fertilization On The Establishment, Density, And Strength Of Merion Kentucky Bluegrass Sod Grown On A Mineral Soil, Kent W. Kurtz
Effect Of Nitrogen Fertilization On The Establishment, Density, And Strength Of Merion Kentucky Bluegrass Sod Grown On A Mineral Soil, Kent W. Kurtz
Masters Theses
No abstract provided.
The Spatial Context Of The Church Building In Kalamazoo, Michigan, Harmon G. Hart
The Spatial Context Of The Church Building In Kalamazoo, Michigan, Harmon G. Hart
Masters Theses
No abstract provided.
Aggression Caused By Withdrawal From Morphine, Irene Ann Bitinas
Aggression Caused By Withdrawal From Morphine, Irene Ann Bitinas
Masters Theses
No abstract provided.
A Study Of The Effect Of The National Science Foundation Course Content Improvement Materials On The School Library, Eleanor R. Mckinney
A Study Of The Effect Of The National Science Foundation Course Content Improvement Materials On The School Library, Eleanor R. Mckinney
Masters Theses
No abstract provided.
The Evaluation Of Certain Serum Iron Analyses By Atomic Absorption Spectroscopy, James Allan Boersma
The Evaluation Of Certain Serum Iron Analyses By Atomic Absorption Spectroscopy, James Allan Boersma
Masters Theses
No abstract provided.
The Development Of Parzival As An Ideal Knight, Susan S. Huston
The Development Of Parzival As An Ideal Knight, Susan S. Huston
Masters Theses
No abstract provided.
Constant Elements Of Soviet Inspection Proposals For Disarmament, Philip Clifton Lewis
Constant Elements Of Soviet Inspection Proposals For Disarmament, Philip Clifton Lewis
Masters Theses
No abstract provided.
A Descriptive Analysis Of The Kalamazoo Consultation Center For Clergy, Arthur Eckert Bilyeu
A Descriptive Analysis Of The Kalamazoo Consultation Center For Clergy, Arthur Eckert Bilyeu
Masters Theses
No abstract provided.
A Method For The Calculation Of The Electric Microfield Distribution In A System Of Charged Hard Spheres, Ronald M. Flegal
A Method For The Calculation Of The Electric Microfield Distribution In A System Of Charged Hard Spheres, Ronald M. Flegal
Masters Theses
No abstract provided.
The Counseling Process And College Freshmen In Home Economics, Alice M. Kavanaugh
The Counseling Process And College Freshmen In Home Economics, Alice M. Kavanaugh
Masters Theses
No abstract provided.
Cell Free Amino Acid Incorporating Systems From Mesophilic And Thermophilic Bacteria, Nisson Schechter
Cell Free Amino Acid Incorporating Systems From Mesophilic And Thermophilic Bacteria, Nisson Schechter
Masters Theses
No abstract provided.
Pyrolysis Kinetics Of Ethyl Nitrate, Betty Meihorng Lee
Pyrolysis Kinetics Of Ethyl Nitrate, Betty Meihorng Lee
Masters Theses
No abstract provided.