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Certain Features Of Alteration In The Michigan Lavas And Their Genetic Interpretation, Peethambaram Doraibabu

Masters Theses

"The origin of the alteration and copper mineralization in the Keweenawan lavas of the Upper Peninsula of Michigan is one of the well known controversial topics in Economic Geology. The literature on this problem is most extensive and an attempt was made in this thesis to first review as many aspects of the discussion as appeared to be necessary. This portion is necessarily extensive, and it is hoped that some new light has been thrown here on some patterns of approach or thought which, today, can hardly be called scientific.

Next, the observations made in the field, on hand specimens …

A Study Of The Difference Effects On Alpha Solid Solutions Of Oxygen In Titanium Dissolving In Hydrofluoric Acid, Kuo-Chin Chuang

Masters Theses

"Alpha solid solutions of oxygen in titanium dissolving in hydrofluoric acid exhibited a positive difference effect with k values of 5.7, being independent of the concentration of HF, within the compositional range studied 0 to 5 w/o oxygen. This indicates that various TiO_x alloys are polarizable to the same extent by the same strength of anodic current in hydrofluoric acid.

The difference effect observed on TiO_x alloys dissolving in HF-HCl revealed that the effect is dependent on the oxygen content of the solid solution as well as on the concentration of HCl. The presence of HCl results in …

Scatter Matrix Analysis Of Plane Waves In A Layered Media, Bill W. Ashworth

Masters Theses

"The problem was the application of matrix theory to the solution of the reflection and transmission coefficients for a plane wave incident on a layered media. Background material relating to the problem was reviewed. Equations that were used in the solution of the problem were either derived or explained. The derivations for the reflection and transmission coefficients were carried out in order, starting with the simple case of normal incidence on a junction of two infinite media and progressing through the more difficult case of oblique incidence on a layer of finite thickness separating two infinite media. Scatter matrix analysis …

A Resistivity Study Of Hot Short Ferrous Alloys, Harold Alfred Koelling

Masters Theses

"Resistivity measurements were performed at elevated temperatures on four special ferrous alloys and one commercial iron. The alloys were pure iron, iron with .023 per cent sulfur, iron with .33 copper, iron with .32 copper and .024 sulfur. Other elements were held to the minimum amounts possible in order to determine the actual effects of sulfur and copper. The commercial alloy was Armco Iron.

Measurements of resistivity versus temperature were taken at slow heating rates to determine if the iron sulphide liquid film formed in the grain boundaries of red-short steels had any effect on the electrical resistivity"--Abstract, page 7.

Tank Studies Of The Resistivity Horizontal Profiling Method Of Electrical Prospecting, Edward Hornsey

Masters Theses

"This research project was undertaken to perfect a technique whereby theoretical horizontal resistivity profiles could be reproduced in laboratory tank studies.

Several specimen materials were tried and finally an acceptable specimen material was found. It was found that carbon specimens suspended in salt water would give horizontal resistivity profiles that agree to a remarkable degree with the theoretically predicted curves.

The investigations showed that the depth of burial of the specimen has a marked influence on the position of the characteristic edge effects and on the magnitude of the apparent resistivity.

The studies also indicated that successful tank studies could …

A Preferred Orientation Study Of Sheet Formed By Rolling Copper, Nickel, Titanium And Tungsten Metal Powders, Martin Franklin Marchbanks

Masters Theses

"Pole figure scans of strip rolled from copper, nickel, titanium, and tungsten metal powders were made on samples taken across the width of the strip, and with various amounts of surface material removed, to determine if any preferred orientation existed. No preferred orientation was found in any of the samples examined.

The method used was a modification of the Schultz technique, using the Norelco Pole Figure Fixture, whose geometry and operation is described, in conjunction with the Norelco diffractometer.

Defocusing resulting during the run of a pole figure is discussed and a method for reducing this defocusing is described.

The …

An Evaluation Of The Addition Of Magnesium Carbonate To Promote Collapsibility In Sodium Silicate Bonded Cores, Wilfred Durairajan Paul

Masters Theses

"Cores are separate sand masses included in the mold to accomplish shapes that would be impossible or difficult to obtain with a normal simple mold cavity.

For example a core made for a pipe casting is expected, first, to support itself when placed in the mold and also withstand handling at room temperature. Second, it should withstand, for a short time, the high temperature of molten metal. Last, it should possess the ability, to completely lose its strength just after the metal around it has completely solidified.

Until recently cores for castings were made using oil bonded sands, with an …

Normal Incidence - Grazing Incidence Spectrograph For The Vacuum Ultraviolet, J. Kirston Henderson

Masters Theses

"Presentation of Design.

This thesis presents the design for a combination normal incidence - grazing incidence spectrograph for use in the vacuum ultra-violet and soft x-ray portions of the electromagnetic spectrum. The instrument described was designed and constructed as a partial fulfillment of the requirements for the master of science degree from The Missouri School of Mines and Metallurgy.

Design Details.

Included in this thesis is a complete set of all detailed drawings and information required for either effective use or duplication of this instrument. Complete discussions of the design, operating procedures, difficulties encountered during construction and suggestions for future …

Certain Trace Element Distribution In The Searchlight, Nevada Quartz Monzonite, Clark County, Nevada, Jai Nandan Shrivastava

Masters Theses

"The once prosperous gold, silver, copper and lead mines of the Searchlight mining district, Nevada, are situated along the south and western margins of a large quartz monzonite body. This intrudes the Precambrian gneisses and younger lava flows. Associated mineral veins show an eccentric type of zoning around the intrusive.

Seven rock samples of the quartz monzonite representing different parts of the intrusive were analyzed petrographically and spectrographically. Modal analyses and various types of rock alteration were investigated petrographically. Spectrochemical analyses of the rock samples and their major minerals were carried out for certain trace elements. A semi-quantitative method was …

The Effects Of Sulphur And Copper On Hot-Workability Of Pure Iron, Hung-Chi Chao

Masters Theses

"The independent effects of sulphur, copper and their combinations on the hot-workability of pure iron free from other elements was studied, with special emphasis on the red-short phenomenon. Electrolytic pure iron with the addition of 0.023 cent sulphur, 0.33 per cent copper and 0.024 per cent sulphur plus 0.032 per cent copper along with a heat of only electrolytic pure iron was melted under vacuum, and cast under helium pressure. The specimens machined from the forged bars were tested at various temperatures by the hot twist-test and by the constant energy single blow drop forging test to evaluate the hot-workability …

A Study Of Invert Emulsion Drilling Fluids, Edward R. Tegland

Masters Theses

"Since invert emulsions are being applied as drilling fluids to cope with special drilling and completion problems, evaluations of existing and new types of emulsions are needed. Three types of emulsions are evaluated in this study: (1) type A emulsions prepared with a commercial emulsifier, (2) type B emulsions prepared by adding clay to the external phase, and (3) type C emulsions containing no externally added emulsifier.

Standard testing procedures were used to measure the viscosity and filtration properties of the emulsions studied. Interfacial tension measurements were made using a technique described in the literature. The degree of stability for …

Use Of Light-Weight Steel Strapping As External Reinforcing To Concrete Beams, John O. Buchanan

Masters Theses

"As a result of some recent failures in reinforced concrete construction throughout the United States, a study was made by several national authorities to find some remedial measures of strengthening existing structures without rebuilding. A system was developed, using high strength steel bands applied externally to beams, to act as stirrups, which has been highly successful. It not only greatly increased the strength of beams already in place but was used to repair members which had already failed.

The application of these bands was made under very exact specifications, using closely controlled procedures, with many physical refinements, in order to …

Transient Temperature Distribution In An Infinite Plate Subjected To Convection And Radiation Heat Exchange, Billy W. Marshall

Masters Theses

"The desired result of this paper is a method of calculating transient temperatures in an infinite plate. The resulting equations are general to the extent possible for aerodynamic heating and radiation boundary conditions. The possible methods of calculation were investigated, and it was felt that a numerical analysis presented the most feasible approach.

Numerical analysis was employed to arrive at a series of equations for calculating the temperatures at selected positions in an infinite plate. A study was then made to determine a method of solving these equations by means of some high speed computing device.

The equations were adapted …

A Study Of Viscous Frictional Effects And Relay Characteristics On The Operation Of A Positional Relay Servomechanism, Earl F. Richards

Masters Theses

"The thesis describes some experimentally observed data and analytical approaches to the study of a relay servomechanism. The experimental data were secured from an analog simulation of a relay servo system. The results of this data were compared to the transient approach by use of the phase-plane method. The stability of the system was determined using a describing-function. The analytical approaches are described in the presentation.

A study of the effects of viscous friction is described, and the characteristic of the relay used in the system is given special attention. The response to input driving function was considered, and rise …

A Systematic Study Of Experimental Parameters In A Cloud Chamber Search For Subionizers, Zin Aung

Masters Theses

"Since there is no theoretical basis for the quantization of electric charge, it is reasonable to consider the possible existence of particles with charges much less than the electronic charge ‘e’. Such particles, if they exist, are expected to ionize more lightly than the electron. Similar remarks hold true for particles with electric dipole moments, and relativistic monopoles with strengths much less than ’e’ electrostatic units. These particles have been termed subionizers.

The selection of apparatus for a subionizer search has been discussed. The desired conditions for such a search using a low background, long sensitive time Wilson cloud chamber …

Temperature Distribution In An Infinite Plate As A Function Of The Input Heat Flux, George Franklin Wright

Masters Theses

"It is the purpose of this thesis to investigate the effects of a variable input heat flux impinging equally on both sides, on the temperature distribution within an infinite plate. An infinite plate may be defined as one in which the dimensions are infinite in two directions and finite in thickness. For practical purposes such a plate could be thought of as one in which the thickness was small enough, compared to the other two dimensions, so that a temperature gradient exists only normal to the surfaces of the plate. This assumption will be made to establish one-dimensional heat flow …

Correlation Of Dust-Count Results By Zeiss Konimeter And Midget Impinger, Chandmal Jain

Masters Theses

"In this modern age, the scientific and technological developments have advanced mechanized mining to the status wherein the attendant dust problems have reached very serious hazard proportions. The significant roles, which have been perfected for the Zeiss konimeter and the midget impinger, in evaluating dust concentrations and thereby revealing possible improvements in making the atmospheric conditions safer, cannot be over emphasized.

While introducing the subject of this paper in the first chapter, the author has presented a historical resume, wherein he pointed out that performances of these instruments have not been correlated in the past. However, the work reported on …

Design, Construction And Operation Of Equipment For The Study Of Evaporation Of Aqueous Solutions Using A Simplified Reactor Design Approach, Virendra Kumar Mathur

Masters Theses

"The study of simultaneous heat and mass transfer in flow reactors has attracted the attention of many workers for a long time due to its wide application in the industrial field. These heat and mass transfer studies play an important role in determining the rate equations and in turn the size of the reactor itself. A large number of chemical reactions have been studied by various workers….

The purpose of this work comprised only the initial or exploratory phase of this overall project, and deals with the design, construction and assembling of the equipment necessary to carry out the vaporization …

A Heterocyclic Alkyd Resin, Bhailalbhai M. Patel

Masters Theses

" 'Alkyd’ is a word coined by Kienle in 1927 to designate a class of synthetic resins which include the complexes resulting from the reaction of polyhydric alcohols and resinifying carboxylic organic aromatic acids or their anhydrides. The word in a broad sense is generally considered to apply to many modifications of these resins - drying, semi-drying and non-drying oil-modified alkyds. It was derived from the words alcohol and acid by combining “al” and “cid” and for euphony changing the ”cid” to “kyd” – al(cid)kyd.

Compounds having rings composed solely of carbon atoms are called homocyclic compounds or carbocyclic compounds. …

A Method Of Estimating Groundwater Influx Into A Vertical Mine Shaft, Morris T. Worley

Masters Theses

"Prediction of groundwater influx into mine openings is one of the more important pre-development problems encountered in mining. A satisfactory method of estimation would provide the information necessary for a mining company to dewater prior to shaft sinking, pre-grout the shaft area, or plan pumping schemes to handle the expected flow.

A standardized field method of estimating groundwater supply from pumping test data was developed by O. V. Theis and others. In the present research problem, the estimation procedure has been simplified by the use of nomograms. Certain modifications in the estimate must be made when a pumping well is …

A Dissolution Rate Study Of Beryllium In Hydrofluoric Acid, Donald Lee Mathis

Masters Theses

"Beryllium was shown to react stoichiometrically with HF, HCl, and H₂SO₄ acids in accordance with a plus two valence. These reactions were investigated by the hydrogen evolution method.

Dissolution rates were determined in five concentrations, 0.01, 0.05, 0.10, 0.50, and 0,75 N, of HF acid at 10, 20, 30, 40 and 50°C, This was accomplished by the hydrogen evolution method and the results were based on the tested stoichiometry. Beryllium has a high dissolution rate in HF acid, which approximates the following under similar conditions: 10 times Al, 4 times Ti, and 1.5 times Zr. A kinetic …

A Geophysical Investigation Of An Area In Christian County, Missouri, Edwin J. Ballantyne Jr.

Masters Theses

"A vertical intensity magnetic survey of 144 square miles in Christian County, southwest Missouri revealed an 825 gamma anomaly having a closure of 9 square miles. A three mile gravity traverse across the magnetic anomaly detected a positive gravity anomaly in excess of six mllligals.

Calculations showed that a Precambrian hill large enough to cause the observed magnetic anomaly would outcrop at the surface. Because Precambrian rocks are known to be buried under a sedimentary layer, this hypothesis was rejected.

Theoretical anomalies of several geometrical bodies at calculated depths were visually compared with the measured magnetic and gravity profiles. A …

Basic Concepts And Audio-Visual Techniques Needed For Teaching Art Appreciation, Vera Ruth Ramsey

Masters Theses

No abstract provided.

A Comparison Of Industrial Arts Curricula In Selected Colleges And Universities In The Middle West 1955-1956 And 1959-1960, Eugene Frantz

Masters Theses

No abstract provided.

A Rhetorical Analysis Of Jane Addams' Speech Of July 9, 1915, Delvenia Gail Shadwell

Masters Theses

No abstract provided.

A Transcription And Arrangement Of The Fourth Movement Of The Orchestral Suite "Through The Looking Glass", Jack W. Crews

Masters Theses

No abstract provided.

An Analysis Of Problems And A Transcription Of The First Suite From The Florilegium Primum By Georg Muffat For High School Brass Quintet, Galen Duane Talley

Masters Theses

No abstract provided.

An Analysis Of The Vocal Problems Of Selected Works By Benjamin Britten, Marilyn Kaye Stilgebauer

Masters Theses

No abstract provided.

A Comparative Study Of Selected Lieder Of Hugo Wolf And Johannes Brahms, Robert Lee Hills

Masters Theses

No abstract provided.

Developing Music Appreciation In The Elementary Grades, Patricia Stanley Pitol

Masters Theses

No abstract provided.