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Liquid Mercury Embrittlement Of Thin-Walled 2024 Aluminum Tubes, Edward J. Beckemeyer

Masters Theses

"The dislocation theory, Zener-Stroh crack model, and the Petch relationship, which correlates fracture stress and grain size, were used to analyze the embrittlement of 2024 aluminum alloy tubes by liquid mercury.

Surface energy ratios, [formula], were determined for biaxial stress ratios of 1/2, 1, ∞. The values of the surface energy ratios considered were 4.24, 1.79, 1.46, respectively. As part of this study, an approximate Nabarro-Peierls frictional stress was calculated for each stress ratio"--Abstract, page 2.

A Study Of Methods For Estimating Parameters In Rational Polynomial Models, Thomas B. Baird

Masters Theses

“The use of rational polynomials for approximating surfaces is investigated in this study. In particular, methods for estimating parameters for a rational polynomial model were investigated.

A method is presented for finding initial estimates of the parameters. Two iterative methods are discussed for improving those estimates in an attempt to minimize the sum of the squares of the residuals. These two methods are (1) Scarborough’s Method for applying the theory of least squares to nonlinear models and (2) the Method of Steepest Descent.

Data from two functions were chosen and approximated as illustrations. Each set of data was used two …

Identifying Students In The Junior High School Who Have Emotional, Social, Or Educational Handicaps, Ralph J. Ankenbrand

Masters Theses

No abstract provided.

Brazil, Land Of Mingling Races, Eulalee Long Anderson

Masters Theses

No abstract provided by author.

A Study Of The Responses Given By Drop-Outs To The Drop-Out Questionnaire, And The Scale Question Form Used In The Project "Operation Second String High School Drop-Outs In Mattoon, Illinois", Alan D. Adamson

Masters Theses

No abstract provided.

The Influence Of John Ellis On Education In Illinois, Shirley Nelson Rawls

Masters Theses

No abstract provided by author.

The Sepoy Rebellion, Dan M. Hockman

Masters Theses

No abstract provided by author.

The Harmony Society In Indiana, George Augustus Turner

Masters Theses

No abstract provided by author.

The Development Of Scoring For Trumpet In Contemporary Orchestral Literature, Roger Maulding

Masters Theses

No abstract provided by author.

Missouri School Of Mines Antenna Range Design., Russell Melvin Ousley

Masters Theses

"The problem was to design, construct and evaluate an antenna range which could be used in future research and instructional programs. The basic theory of range design and practical considerations were studied and a range was then designed and built from equipment which was either immediately applicable, applicable after modification or constructed to fit the needs of the range. Tests were made to determine the performance characteristics of the system with respect to the more important design parameters. Suggestions were given for future improvement of operation and expansion of the range capabilities"--Abstract p. ii

Preparation And Properties Of 3,3’-Disubstituted-2,2’ – Three-Carbon-Atom Bridged Biphenyls, Allan E. Nader

Masters Theses

Introduction

The configuration of biphenyl has been treated in numerous articles and reviews (1, 5, 6, 7, 8, 16, 22, 23). In particular the configuration of 2,2'-bridged biphenyl derivatives has obtained attention. The synthesis of an optically active 2,2'-three-carbon-atom-bridged biphenyl possessing an ultraviolet absorption maximum at 250 mμ has been reported by Iffland and Siegel (15). These properties require first, a non-planar configuration for the molecule and second, significant inter-ring conjugation as demonstrated by ultraviolet spectra.

Several 2,2'-three-atom-bridged biphenyls have been prepared by Ahmed and Hall (2, 3) in order to obtain some measure of their specific rotation. The use …

Preparation Of The Cis And Trans Isomers Of Methylcyclohexanecarboxylic Acids And Their 2-Diethylaminoethyl Esters, Paul Allen Meulman

Masters Theses

Introduction

The purpose of this research is to prepare the CIS and TRANS isomers of the 2, 3 and 4-methylcyclohecanecarboxylic acids and their 2-diethylaminoethyl esters.

This series of compounds is of interest because of the anti-tumor activity shown by some ethanolamine derivatives. The compounds to be prepared in this study represent modifications of these structures to determine if further investigation in this area is worthwhile. A pharmacological evaluation of these compounds will be made since many esters of amino alcohols have demonstrated pharmacological activity. The cancer chemotherapeutic and pharmacological test results are not included in this paper, but will be …

A Study Of A Method For Determining Properties Of Metals At High Strain Rates., Warren Heidbreder

Masters Theses

"An experimental method has been developed for determining the tensile and other physical properties of metals under high loading rates. Experimental equipment was designed, fabricated and tested. It was desirable to keep the equipment simple and inexpensive so that it could be used by operators Lacking experience in electronics and high-speed photography which are required for some of the more sophisticated methods now in use. The energy for pulling the specimens is supplied by smokeless gun powder. The firing of a cartridge into a closed cylinder with movable piston accomplishes the breaking of the specimen. A record of the time, …

Stability Properties Of Various Predictor Corrector Methods For Solving Ordinary Differential Equations Numerically., Charles Edward. Leslie

Masters Theses

No abstract provided.

Separation Of Radioactive Fission Products By Electrodialysis Using Aminopolycarboxylic Acids., Harry C. Hershey

Masters Theses

"The development of nuclear fission reactors to convert nuclear energy into electrical energy for use in industry, public utilities, military applications, and space exploration has resulted in ever increasing quantities of radioactive waste solutions. Significant reductions in nuclear fuel costs will be obtained when economical processes have been developed for recovery and purification of valuable fission products which are contained in radioactive waste solutions and are in demand for many research applications.

The United States Atomic Energy Commission has supported exhaustive studies to recover fission products by processes involving the more common unit operations such as extraction, distillation, crystallization, and …

Hydrogeology Of Reservoir Sites In The Meramec River Basin, Missouri., John H. Anderson

Masters Theses

"Governmental and private agencies have proposed construction of multiple purpose dams in the Meramec River Basin for flood control, conservation, recreation and possible power development. Evaluation of the effects of reservoirs created by these dams on ground water conditions has not been published. Study of possible effects led to the thesis that prediction of changes in ground water conditions could be made.

Several limited applications of ground water geology techniques to the problem of reservoir-ground water relations were studied; no thorough previous studies were found. Apparently, complete studies have not been undertaken by even the larger agencies.

Inspection of the …

A Study Of Chemical Stabilization Of The Swell Properties Of Putman Soil, Dale E. Dobson

Masters Theses

"The theory of chemical stabilization of a swelling clay was reviewed. The effect of several chemicals on the engineering properties of Putnam soil was investigated using the Atterberg tests. Strength of concentration of chemical additives versus preferred structural orientation of treated Putnam was investigated using sedimentation procedures similar to those used in the hydrometer analysis of fine grained soil sizes. Swell tests were conducted under a static load of 1.25 psi on untreated Putnam, Putnam in combination with sodium carbonate, and Putnam treated with calcium hydroxide. These tests were conducted at varying initial moisture contents and dry densities.

It was …

Pegmatites Of The Anderson Ridge Quadrangle, Fremont County, Wyoming, Hassan A. Etr

Masters Theses

“The oldest rocks in the area consist mainly of para- schists of low to medium rank and restricted higher rank sillimanite schist. The entire series has been at least double folded. The most apparent are tight north to north- east trending folds. These have been intruded in the northern part of the area by a batholithic body of granitic composition, a granitic stock, a pegmatitic granite, a granitic sill-like body and different types of pegmatite dikes and sills. The youngest intrusions are a series of northeast trending basic dikes and sills. A major easterly trending transverse fault and a series …

Methods For Synthesizing A Four-Bar Mechanism So It Will Have A Low Value Of Jerk., Ronald D. Brenner

Masters Theses

"The purpose of this thesis is to find a method of synthesis, for a four-bar mechanism, so that the mechanism that is synthesized will have a low value of jerk. In the field of synthesis there has been little or no effort made to consider jerk when designing mechanisms.

Jerk is defined as the time rate of change of acceleration. Jerk can also be expressed as being proportional to the time rate of change of the inertia forces. When the jerk is large the effect on the link of a mechanism is the same as that of an impact load. …

The Effect Of Shear Deformation On The Slope Deflection Coefficients., Rajni C. Amin

Masters Theses

"This study was made to determine the effect of shear deformation on stiffness coefficients and carry over factors that are normally used in the calculation of moments in continuous beam or frames by the slope-deflection and Moment Distribution method.

Using the method of total strain energy, the vertical shear V and angle of rotation Ө caused by unit moment were determined for bending moment only and then determined for shear deformation plus bending moment, then carry over factors and stiffness coefficients were computed for each case. The relative effect of shear deformation is small for small depth ratio d_{b …}

Permeability And Adsorbed Flow Of Carbon Dioxide And Propene Through Porous Silica., Jorgen Lovland

Masters Theses

"It has been known for over a century that gases diffuse through some porous barriers at a rate inversely proportional to the square root of the molecular weight. The difference in diffusion rate can obviously be used to separate gases with different molecular weight. Since other methods for separation like distillation and adsorption usually are simpler and cheaper, separation by gaseous diffusion has found few practical applications. One notable exception is the separation of the gaseous hexafluorides of u²³⁸ and u²³⁵.

Later investigations on the permeation of gases through porous materials have shown that when gases diffuse …

A Study Of The Angular Velocity In A Liquid Induced By A Vortex In An Emptying Container, James Paul Hartman

Masters Theses

"Previously a limited amount of investigation has been done to describe the rotational motion of fluid in a draining tank. To date tank design has been based on trial and error, since the physical mechanisms of actual draining have not been recognized. This investigation has been made to develop a technique for the measurement of the motion of the fluid during the draining process and to present the results of the observed surface velocity of the liquid as a function of depth of fluid and its distance from the center of the vortex core. Many previous investigators of vortex behavior …

An Investigation Of The Acceleration Of Neutrons, Charles Edward Byvik

Masters Theses

"The acceleration of neutrons via their magnetic dipole moment in an axially symmetric magnetic field is considered. Conditions for bunching are derived and expressions for the off-axis forces are developed. It was found that neutrons off axis are forced back onto the axis and that neutrons slightly depolarized remain in their initial state. A calculation of the acceleration is made using the field of a current loop and the conclusion is that under present laboratory capabilities a neutron accelerator is not feasible"--Abstract, page ii.

An Investigation Of Optimum Journal Bearings., Kulin Purshotam Maskai

Masters Theses

"Not much has been done towards calculating the "Optimum Bearing" from the point of view of maximum load capacity or minimum friction. It has been found that there 1 is not much difference in the "Optimum Bearing" proportions, as calculated, considering either minimum friction or maximum load capacity

Journal bearings are commonly used and they play a very important role in reducing friction and wear. Engineers use past experience in choosing a bearing for the given conditions. A bearing design can be obtained if 'Optium Bearing' proportions are calculated as suggested by Kingsbury (1) in his article on 'Optium Conditions …

A Preliminary Study Of The Dielectric Properties Of Bismuth Ferrate Ceramics., John Joseph Schwaller

Masters Theses

"In this investigation some of the results of Fedulov¹⁸ for a composition of 30 percent lead titanate - 70 percent bismuth ferrate were verified. The system of lead zirconatebismuth ferrate was studied with sintering data determined for the series. By X-ray and microscopic analysis the system was determined to be not a solid solution. The dielectric measurements show a linear relation between the dielectric constant and the percent lead zirconate from 100 percent BiFeo₃ to 10 percent BiFeo₃ - 90 percent PbZro₃"--Abstract, p. ii

Zinc Sulfide-Sulfate Reaction Pressures, William L. Hallerberg

Masters Theses

"A static manometric method was used to find the equilibrium reaction pressure as a function of temperature for the reaction:

11 ZnSO₄ + ZnS → 4 (ZnO·2ZnSO₄) + 4 SO₂

From the reaction pressures, the standard free energy of the reaction was found to be:

ΔF⁰ = + 51,320 - 36.68 T

Using thermodynamic data for ZnSO₄, ZnS and SO₂ the standard free energy of formation of the basic salt ZnO·2ZnSO₄ was found to be:

ΔF⁰ = - 377,000 - 65.9 T cal/mole

in the temperature range 350 to 420⁰ C.

Above …

The Diagenetic Origin Of The Dolomites, Chert, And Pyrite In The Jefferson City Formation., Erik Hans Schot

Masters Theses

"Diagenesis designates all modifications which a sediment undergoes during and following deposition and prior to complete lithification, metamorphism, deep burial, and orogenesis.

Probably the dolomites of the Jefferson City Formation resulted from alteration at, or below the sea floor or the depositional interface and during diagenesis. Diagenetic dolomitization or penecontemporaneous alteration presumably involves a reaction between the calcium carbonate sediments at/or below the sea floor or the depositional interface and magnesium salts in solution or suspension in the basal layer of contacting sea water, or in the initial pr connate water trapped in the sediment.

The cherts of the Jefferson …

The Removal Of Abs From Tap Water Solutions And Sewage Plant Effluents At Various Air Rates Using Continuous Foam Flotation., Ratan F. Daboo

Masters Theses

"This investigation was performed to study the removal of Alkyl Benzene Sulfonate (ABS) from tap water solutions and sewage treatment plant effluents by continuous foam flotation and to determine the effect of the air flow rate on the removal.

A flotation cell provided with controlled air and liquid flow rates was used for the continuous process. Air flow rates between zero and 29.4 cubic feet per hour were investigated. A liquid feed flow rate of 120 milliliters per minute was used for most of the experiments with one run made at 60 milliliters per minute. The liquid samples were analyzed …

Investigation Of Stresses And Deflections In An Inclined Beam., Jayant Chhaganlal Soni

Masters Theses

"In this thesis an investigation has been made of the effect of inclination on strains and deflections in an inclined rectangular steel beam. To compute the strains and deflections Newmark's Numerical Procedure has been used. An experiment has been carried out on a rectangular steel beam for four different load increments and eight different inclinations. To compare the experimental and analytical data, graphs have been drawn for the experimental and analytical quantities of strains and deflections for all the four load increments and eight different angles of inclination. Results of the investigation indicate that the strains and deflections at inclinations …

A Study Of The Relationships Between The Structure And The Consolidation And Swell Characteristics., Victor Foute Spruill

Masters Theses

"This paper reports the experimental results of an investigation of the relationships between the consolidation and swell characteristics of a cohesive soil and the structure of the soil. Consolidation and swell tests were run on samples prepared at their liquid limits in order to permit the effects of structure to show up in the results. The series of samples tested consisted of Putnam Clay Soil with (1) 2% sodium carbonate added, (2) no admixture, (3) 1% calcium hydroxide, and (4) 4% calcium hydroxide. Determinations were made of the per cent consolidation and per cent swell, decrease and increase in height …