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Unsteady State Heat Transfer From A Hot Body To A Liquid, Larry Clinton Atha

Masters Theses

"The problem investigated in this thesis is that of unsteady state heat transfer from a hot body to a liquid, a quenching problem. Unsteady state or transient heat transfer is heat transfer in which the temperature distribution changes with time.

If a hot body was suddenly quenched in a large mass of liquid, a film of vapor would form between the hot body and the liquid. For example, if a hot body was quenched in water a film of steam would form between the hot body and the water. It is the purpose of this thesis to determine the heat …

Stability Of Rectangular Plates By Arbitrary Deflection Method, James Arthur Jones

Masters Theses

"Many engineering structures use thin rectangular plates as members. These plates may be loaded and supported in numerous ways. The edges may be freely supported, rigidly supported, or supported by elastic members. The load may be applied normal to the plane of the plate, in which case the problem becomes essentially one of bending. If the load is applied in the plane of the plate, placing it in compression, the problem becomes one of stability.

This investigation is concerned with the stability of plates rigidly supported on all edges and having a compressive load applied to two opposite edges of …

Regulation Of River Bank Development Through Flood Plain Zoning, William James O'Neill

Masters Theses

"The triangular pattern of protection, evacuation and flood plain zoning, as the only truly effective and comprehensive approach to proper flood control, is substantiated in practically all technical publications on this subject by economic and engineering leaders. Yet in actual practice, at the present time, flood plain zoning is not being actively applied by any federal flood control agency and by only one of the forty-nine states faced with this common problem. This lack of direct application was probably best described recently by Walter B. Langbein, Water Resources Division Engineer, U. S. Geological Survey when he said, "Flood Plain Zoning, …

Linear And Vortex Flow Heat Transfer Coefficients, Edward Robert Schmidt Jr.

Masters Theses

"In order to make possible better, more efficient equipment, a higher and higher rate of heat transfer has been the goal of engineers for many years. The need for heat transfer rates never thought of 25 years ago has been brought about by the advent of modern high-performance devices such as nuclear reactors and rocket motors. "A heat release of about 40,000 Btu/hr.cu.ft. is considered good practice in a modern boiler, but in a rocket or a nuclear reactor it may be 1,000,000,000 Btu/hr.cu.ft." This heat must be removed by transfer to a coolant or converted into work or the …

Application Of Statistical Methods To Evaluation Of Mineral Deposits, Francis R. Saupé

Masters Theses

"Only in recent years have statistical methods been applied to evaluation of ore reserves. An attempt is made in this study to prepare an outline to be followed throughout the exploration in order that statistical methods can be applied to valuation problems. Particular emphasis is given to the preliminary requirements to a statistical approach. Representative parameters, sampling pattern, and sample size are discussed in separate chapters"--Abstract, page iii.

The Effect Of Heating Chill Cast Eutectics, Robert Lewis Dreshfield

Masters Theses

"This investigation is the result of the author's specific interest in two phase systems. In the past, considerable work has been done investigating the alteration of eutectoid structures; however, eutectic structures have been neglected to a great extent. Tammann did some work on the subject in 1937 as did Brown and Guy in more recent times. In both of the above cases the eutectic structure was altered by cold working and subsequent heating of the alloy.

Tammann also noted that eutectics chill cast in liquid air display a vastly different structure than those cast under equilibrium conditions and that there …

Lattice Constants, Thermal Expansion Coefficients And Perfection Of The Phase Tio, Hsiung Wei Li

Masters Theses

"TiO is one of the intermediate phases in the titanium - oxygen system with a crystal structure of the sodium chloride type. The phase extends from about 22 to 29 weight or about 46 to 55 atomic percent oxygen. A comprehensive survey of the physical properties of the phase has been made in previous investigations (see review of literature), but only impure titanium was available at that time. Therefore, some revision of the measurements had to be made. Also, neither the thermal expansion coefficients nor the temperature at which the lattice constants were measured were reported.

For precision determination of …

A Preliminary Investigation Of Natural Gas Combustion As Applied To Thermal Recovery Of Petroleum, Roger J. Schoeppel

Masters Theses

"Present application of the subsurface combustion processes in the thermal recovery of petroleum afford favorable and opportune methods of providing greater recoveries from petroleum reservoirs. This study attempts to elucidate some of the parameters controlling the complex hydrocarbon oxidation for one such process. The experimental phase consisted of investigating the combustion behavior of eight nonexplosive and one explosive natural gas-air mixtures at low and intermediate pressures. The hydrocarbon was allowed to oxidize by self-ignition under controlled conditions within environments precluding a visible flame type reaction. Progress of the reaction was followed by measuring effluent oxygen content.

Experimental evidence indicate the …

Generator Control System Employing Semiconductor Apparatus, Don Cronin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

This invention relates generally to new and improved transistor control apparatus for controlling the excitation of rotary generators. In the field of transistor control of generators, especially where it is desired to control relatively large field excitation currents, the problem arises of obtaining suitable transistors having a sufficiently large current carrying capacity to properly control the current flowing in the generator exciting field. It has been found that the answer does not lie in paralleling two or more transistors directly, since only by extremely carefully matching of transistors or by utilizing auxiliary electronic components in the circuit can it be …

Some Properties Of Chrome-Magnesite Mixtures And Calcium Aluminate Cement-Magnesite Mixtures, Edward Charles Duderstadt

Masters Theses

"The knowledge of the physical and chemical properties of refractories is of great importance in determining their usefulness and application. The thermal expansion of refractories is of particular importance in that it affects the thermal stability of the product. A high coefficient of thermal expansion leads to greater spalling and destruction of the bricks in use. It is, therefore, desirable to develop compositions having low coefficients of thermal expansion. This investigation was undertaken (1) to determine some of the properties of chromite-magnesite refractory mixtures in an attempt to determine the optimum composition of these mixtures, the specific properties including thermal …

A Study Of The Recrystallization And The Mechanical Properties Of Indium, Louis John Reitsma Jr.

Doctoral Dissertations

"The recrystallization temperature and the mechanical properties of tensile strength, elongation, reduction in area and hardness were determined for 99.97% indium. Metallographic techniques were developed and stress rupture data were obtained.

Single crystals of indium were grown in a horizontal furnace with a traveling temperature zone, and sectioned in a strain-free manner, with an etch-cutter. Because of the low recrystallization temperature of indium, no further work was done on the single crystals.

The effect of recrystallization on electrical resistance, thermoelectric force, hardness, bending strength, crystallographic orientation and microstructure was studied. The range of recrystallization temperature for small amounts of cold …

Imperfections Within Ti₂O₃ And Tio₂ Phases In The Titanium-Oxygen System, Tatsuhiko Ejima

Doctoral Dissertations

“The hexagonal-rhombohedral Ti₂O₃ phase in the Ti-O system extends from 32.5 to 34.5% oxygen b.w., with the exact composition of Ti₂O₃ nearly in the middle of the phase. Seven samples of different composition within that phase were made, and the lattice constants (a and c) and the density of each sample were determined.

The plots of the constants against the composition of the samples revealed a deviation from Vegard’s rule when approaching the exact composition of Ti₂O₃. The lattice constants of this compound, obtained by graphical interpolation were; a_{25 …}

A Thermodynamic Study Of The Zirconium Sulfides, Andrew Hessler Larson

Doctoral Dissertations

"A hydrogen reduction technique was used to determine some thermodynamic properties of various zirconium sulfide phases. The equilibrium H₂S/H₂ ratios were determined as a function of temperature and composition of the condensed sulfide phases. The hydrogen sulfide content of the equilibrated gas mixtures was analyzed by an iodimetric titration procedure.

A detailed description is given for the method and apparatus used both in the preparation of the various sulfide phases and in their equilibration with a hydrogen-hydrogen sulfide gas mixture.

The composition ranger 59 to 67 atomic per cent sulfur was studied over a temperature range of …

The Missouri Miner, December 19, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, December 12, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, December 05, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, November 21, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, November 14, 1958

The Missouri Miner Newspaper

No abstract provided.

Missouri S&T Magazine, November-December 1958, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.

The Missouri Miner, November 07, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, October 31, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, October 24, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, October 17, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, October 10, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, October 03, 1958

The Missouri Miner Newspaper

No abstract provided.

An Investigation Of High-Strength, Deformed Steel Bars For Concrete Reinforcement Part Ii, Sidney A. Guralnick, George Winter

CCFSS Library (1939 - present)

INTRODUCTION The previous phase of this investigation of high-strength steel for concrete reinforcement is described in Report No. TSR-4730-7l46, which was released in July, 1957. This previous testing program was designed to provide information on the following topics, among others: (a) The shear (primarily) and flexural (secondarily) strength of restrained Tee-beams reinforced with steel of approximately 80 ksi yield point for main reinforcement and with standard steel for web reinforcement. (b) The formation of diagonal tension cracks and flexural cracks and the width of flexure and shear cracks at various loads and particularly at "design loads" (say, half the ultimate …

The Missouri Miner, September 26, 1958

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, September 19, 1958

The Missouri Miner Newspaper

No abstract provided.

Missouri S&T Magazine, September-October 1958, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.

Missouri S&T Magazine, July-August 1958, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.