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The Conducting Sheet Analogy For Laplace And Poisson Equations, Ronald Edward Volker

Masters Theses

"This investigation determined the accuracy to be expected with conducting sheet analogy solutions for Laplace and Poisson equations using simple and relatively inexpensive instrumentation. Several problems were solved experimentally and compared to known theoretical solutions to check variables in the technique and the accuracy of the experimental solution. It was found that if proper procedures are followed, solutions can be obtained rather rapidly and with an error of less than 5% which compares favorably with accuracy obtained by other investigators with more complex, precise equipment"--Abstract, page 2.

Imperfections In A Silicon Crystal Studied By The X-Ray And Density Method, Pierre Borgeaud

Masters Theses

"The study of imperfections in several crystals of silicon was conducted by the x-ray and density method"--Abstract, page 2.

The Determination Of The Heat Transfer Film Coefficients Of Internally Heated And Twisted Strips, Karpurapu Venkata Apparao

Masters Theses

"As the demand for power supply is increasing, the power from nuclear fission is assuming an important role in the field of power production. The enormous quantity of heat generated during the fission process can be utilized for the generation of power. To get maximum advantage out of the fission process, the fission material must be fabricated into a unit of proper shape to permit the control of the process and safe removal of heat generated. This unit, composed of fuel elements is known as the reactor core and is one of the major concerns in nuclear power development.

The …

The Effect Of Boundry Layer Control By Passing Fluid Through Transverse Slots On Heat Transfer From A Pipe, Perakatte Joseph George

Masters Theses

"The object of this work is an experimental investigation into the possibility of obtaining an increase in the forced convection heat transfer coefficient for a pipe by passing the fluid through narrow transverse slots cut in the pipe, and thereby altering the boundary layer pattern.

Since the greatest barrier to the flow of heat from a solid to liquid exists at the boundary layer, it can be expected that any device which will alter the boundary layer pattern will alter the heat transfer coefficient. When mass crosses a boundary layer in a direction perpendicular to the main motion of the …

Effect Of Boundry Layer Control, Through Surface Holes, On The Film Coefficient Of Convective Heat Transfer, Jainti Prasad

Masters Theses

"This thesis has as its objective, the effect of some boundary layer control on the convective heat transfer film coefficient, metal to liquid. The boundary layer control was produced by drilling 1/16 inch diameter holes on the tube surface.

In this modern world of atoms and the current development of large quantities of its energy at low cost, the subject of designing heat exchange devices of higher efficiency is receiving considerable attention. In a reactor, or any type of heat exchange device, there are limits for the temperatures of a heat exchange surface because of corrosion, strength of metals etc. …

A Thermodynamic Study Of The System Pbo-Pbs, John P. Hager

Masters Theses

"An experimental investigation was conducted in order to determine the thermodynamic and kinetic behavior of the system PbO-PbS.

The thermodynamic behavior of the system PbO-PbS was studied by measuring the P_SO₂ in argon-SO₂ mixtures equilibrated with various PbO-PbS mixtures in a recirculating-type equilibrium apparatus, and analyzing the condensed phases by means of X-ray diffraction.

The effect of temperature and PbO/PbS ratio on the rate of SO₂ evolution was investigated in order to determine the reaction mechanisms involved in the approach to equilibrium.

A sodium hydroxide, hydrogen peroxide titration technique was employed in the analysis of SO_{2 …}

Construction Of Distillation Solvent Recovery System, Joseph Richard Aid Iii

Masters Theses

"When a nuclear fuel is “burnt” in an atomic reactor it is not possible to completely utilize the fissionable material present due to build-up of fission products (which act as poisons), depletion of the fissionable material, and radiation damage to the fuel elements. Chemical processing of nuclear fuels is concerned with the recovery of the fissionable materials, specifically uranium, plutonium, and thorium, from the spent fuel elements. There are two general methods of reprocessing nuclear fuels: aqueous and non-aqueous. The aqueous methods include solvent extraction, ion exchange, and precipitation. Comprising the non-aqueous methods are fluoride volatility and pyrometallurgy. At the …

Effect Of A Lime-Cement Additive On The Physical Properties Of A Podzolic Clay Soil, Raymond H. Frankenberg

Masters Theses

"The object of this research is to obtain data and information from laboratory tests concerning the effect of combined lime and cement additives on the physical properties of illitic clay soils"--Introduction, page 3.

Preparation Of Casting Slips Containing Ferrous Powders And Alginates, Robert Eugene Newcomer

Masters Theses

"The preparation of casting slips containing ferrous powders dispersed by alginates was studied and an attempt was made to determine the mechanism by which suspension was attained. The colloidal aspects of preparing ceramic casting slips are discussed and an analogy is drawn to preparation of metallic slips suspended by alginates.

Sodium and ammonium alginates were used to suspend stainless steel and iron powders. The effect of NaOH, HC1, and various phosphate additions on the properties of slips and algin solutions was considered.

It was found that colloidal concepts can not be applied to explain observed behavior in the system studied. …

Analysis And Simulation Of A Cross-Correlation Communication System, Dennis Jay Gooding

Masters Theses

"Statement of the problem. The purpose of this study was (1) to calculate the probability of error as a function of receiver input signal-to-noise ratio for a typical communication system employing cross-correlation detection; (2) to design and construct an experimental model of such a communication system for the purposes of demonstrating the operation of the system and verifying the theoretical calculations"--Introduction, page 1.

Electrical Model Investigations Using The Horizontal Profiling Technique, Alan H. Kwentus

Masters Theses

"Electrical exploration methods have been used for many years as a means of determining subsurface structures and in the search for mineral deposits. Vertical profiling techniques can be used to determine rather accurately the resistivity and thichness of horizontal or gently dipping beds for cases up to four layers. Mathematical calculations have been made for multiple layers and theoretical curves have been computed and published for four and more layers. The vertical profiling method is not particularly well suited to the problem of locating lateral changes in resistivity produced by such features as ore bodies, sinks and channels. These features …

Temperature Distribution In A Semi-Infinite Solid As A Function Of The Input Heat Flux, Lloyd Carl Laciny

Masters Theses

"In this thesis the problem of varying heat flux into a semi-infinite solid initially at zero temperature is investigated. Varying heat flux means that the heat transferred to the solid by its surroundings is a function of time; in this particular problem it is chosen to be an exponential function of time. A semi-infinite solid is one which is bounded by only one plane.

This subject has achieved considerable importance in the field of space technology. A body in space is beyond the realm of aerodynamic heating and non-uniform skin temperatures reached as a result of radiation from a high …

Occurrence Of Mineralized Ground Water In Southern St. Louis And Jefferson Counties, Missouri, Willard Glennon Owens

Masters Theses

"Mineralized ground water occurs at some localities in southeastern St. Louis and northern Jefferson counties, Missouri. This water is usually undesirable and is detrimental to development of ground water resources.

Water well records in the offices of the Missouri Geological Survey and Water Resources provided data for a study of structure, lithology and occurrence of ground water. Water well drillers and property owners were interviewed to obtain additional information concerning drilling problems and quality of water.

Geologic cross-sections, subsurface contour maps and isochlorinity maps aided the study of lithology, structure and areal distribution of mineralized ground water. Relationship is suggested …

A Follow-Up Study Of Graduates Of East Richland High School Who Participated In The Music Program, Leo W. Sliva

Masters Theses

No abstract provided.

Lincoln's Search For A Winning General, John C. Gibson

Masters Theses

No abstract provided by author.

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, …

Evaluation Of The Force Constants Of Non-Polar Gases From Viscosity Data, Charles Warren Keller

Masters Theses

"Studies of the intermolecular forces and potential energy functions have been largely of a theoretical nature. Various empirical statements representing these theories have been developed and tested. Of these, the Lennard-Jones (6-12) potential is one of the more realistic and has become the most favored when dealing with non-polar molecules.

The values of these “force constants” or the values of the Lennard-Jones (6-12) potential parameters, have been determined from both diffusion and viscosity data. Although these “force constants” can be determined from diffusional measurements as well as viscosity data, the literature is predominately filled with values of force constants which …

A Study Of The Development Of The Tri-Cities, Pasco, Kennewick, And Richland, Washington, Delbert W. Meyer

Masters Theses

No abstract provided.

The Effect Of Rare Earth Additions On Low Alloy Steel, Sukh Dev Sehgal

Masters Theses

"Rare earth metals have for some years been used as an inoculant in nonferrous foundry practice and lately in the production of nodular iron. It has been reported that addition of rare earth metal to certain grades of stainless steel so improve the hot malleability that reduction of large size ingots in the blooming mill is now possible. It has been reported that considerable improvement in soundness and mechanical properties of steel castings and wrought products have been attained as a result of small additions of rare earth metals and oxides. In practically all investigations, it has been reported that …

The Effects Of Fly-Ash On Dynamic Modulus Of Elasticity Of A Concrete Mortar, Bill L. Atchley

Masters Theses

"Over the last few years an increasing amount of interest has been shown in the use of prestressed concrete. As is true in many new methods of design or construction, the properties of existing materials to be used sometimes fail to meet all the desirable characteristics, and certain modifications might be advantageous. This is certainly true of prestressed concrete design and construction, in which a lower modulus of elasticity accompanied by a minimum loss in strength would be desirable. If a lower modulus of elasticity could be obtained for concrete, a lower prestressing load could be used and still maintain …

Mechanization Of First Stage Graphitization In Fe- C-Si- Alloys, Dildar S. Gill

Masters Theses

"The purpose of this investigation was to study the mechanism of first stage graphitization in iron-carbon-silicon alloys in the light of results obtained by Taub, and to propose a new mechanism of graphitization. The results of preliminary experiments confirmed the findings of Taub as regards the precipitation of secondary carbides. Therefore, it was decided to extend the investigation so as to include the study of growth of secondary carbides. In order to know the chief factor responsible for the growth of secondary carbides, the activation energy was calculated. Another factor which was investigated was the site of graphite nuclei formation”--Purpose …

Methods And Time Study In Mining Operations, Cyril Jones

Masters Theses

"It was the purpose of this study to evolve and present in a logical manner a method of approach from the efficiency standpoint, to mining operation problems. This, it was thought, could be best achieved by means of a method and time study program, which could examine all the operations in whatever detail was required"--Statement of the problem, page 1.

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 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 …

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 …

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 …

A Comparison Of The Effect Of Pvt Data Application Methods On Predicted Depletion Drive Reservoir Performance, Frederick A. Klein

Masters Theses

"It is generally agreed that the evolution of gas from oil within a reservoir is most closely approximated by the differential liberation process, while gas liberation in the flow string, surface separator, and stock tank is most nearly represented by flash liberation. To conform with this assumed physical behavior, appropriate application of both flash and differential liberation data in the computation of reservoir performance by material balance methods is indicated.

In this work, simple depletion-drive oil and gas recoveries were calculated (1) using differential liberation data only, and (2) using differential liberation data adjusted to incorporate the results of flash …

Graphical Solution Of Concentration At Production Wells Of Injected Radioactive Water Tracers, George E. Vaughn Jr.

Masters Theses

"With the advent of field research in which radioactive isotopes are used as tracers for water injected in secondary-recovery operations, knowledge of the probable transit time between wells of an injected tracer, its concentration at detection points, and the resultant optimum injection concentration has become important. Both detection and, consequently, injection concentrations of radioactive tracers are at least in part functions of the loss of tracer for various reasons, flow characteristics between wells, the rate of decay of radioactive emission, and the sensitivity of the detection apparatus. A method, based on the characteristics of a homogeneous 5-spot system, has been …

Chemical Kinetics Of The Zirconium-Hydrofluoride Reaction, Wayne G. Custead

Masters Theses

"It has been only in recent years that hafnium-free zirconium has been made available for commercial use. When economical methods were developed in 1950 to remove hafnium from zirconium, a metal was produced which not only exhibited good corrosion resistance and desirable physical properties, but which also had a very low absorption cross section for thermal neutrons. These factors have led to its most important application to date, that of a structural material for nuclear reactors.

The outstanding non-nuclear property of zirconium is its corrosion resistance to most mineral acids. Hafnium-free zirconium exhibits outstanding resistance to all mineral acids with …

300-Kilocycle Ultrasonic Emulsification Of Paraffin Oil In Distilled Water, John Henry Rother

Masters Theses

"Emulsions have been in existence for thousands of years in the form of cosmetics, food, and medicines. Emulsions cover a vast number of products in both household and industrial use. Homogenized milk, butter, mayonnasise, salad dressing, and sauces are emulsions that are used every day at the dinner table. Medical salves, ointments, cosmetic creams and many other pharmaceuticals are used every day by members of both sexes in the human race. Waxes and polishes for automobiles, metal, floors, leathers, and furniture are emulsions. All of the new so called "wonder paints" and "rubber-base paints" are nothing more than an emulsion …