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The Thermal Conductivity Of Potassium Chloride At Elevated Temperatures, Wendell D. Miller

Masters Theses

"The transport of heat in solids is attributed to the combined effect of the quantized vibrations of lattice points, or phonons, and the flow of valence electrons. In dielectric solids, the thermal conductivity is due almost entirely to phonons, while in metals the latter method preponderates. Scattering processes in dielectric solids, giving rise to thermal resistance, also serve to limit the thermal conductivity. Scattering results from vacancies, dislocations, interstitial atoms and phonon interaction. Crystal boundaries also function as scattering points and in crystals of small dimensions, this process is the most pronounced conductivity-limiting factor. At low temperatures the thermal resistance …

Geothermometry At The Balmat No. 2 Mine, New York By The Fes-Zns System, Bruce R. Doe

Masters Theses

"Definition Of The Study. The study consists of an investigation of the variation in the temperature of formation of sphalerite on the 500 and 1500 ft levels of the Balmat zinc deposit at Balmat, New York. A subsidiary investigation was performed on the use of x-ray fluorescence as a means of chemical quantitative analysis. Twelve samples of sphalerite from the 500 ft level and 13 samples from the 1500 ft level were analyzed for atomic percent iron content by measuring Zn/Fe x-ray fluorescent ratios. The x-ray fluorescent ratios were standardized by ''wet" quantitative analysis. The results of the analyses are …

The Effect Of Metallic Naphthenates On The Oxidation Of Linoleic Acid, David Elliott Troutner

Masters Theses

"It has been known for many years that certain metallic soaps catalyse the drying of oils. A great deal of information is available concerning the use of these soaps, but there is little knowledge of the actual manner in which the soaps catalyse drying. As the drying is known to be an autoxidation reaction, it is generally believed that the soaps must affect the oxidation of the oil in some way. The work described in this thesis was undertaken to gain some knowledge of the mechanism of the catalysis, and to correlate the effect of the soaps on the drying …

A Study Of The Deleading Of Zinc Sulfide Concentrates, Larry Leroy Gidley

Masters Theses

"The object of this research was to study the basic principles and optimum conditions for the deleading of commercial zinc sulfide concentrates by sublimation of the lead in the form of a sulfide. Present commercial practice conducts this sublimation in hearth roasters. This research considered only the variables affecting sublimation of the lead sulfide, not the types of applicable equipment, or other possible processes. However, the laboratory conditions were at least partially similar to those that could be obtained in commercial practice"--Object, page 1.

Development Of Large Hole Burn Cut Drift Rounds, Joseph J. Yancik Jr.

Masters Theses

"A decided change in the attitudes of mining management toward the need for mine research has taken place during the past decade. More emphasis is being placed not only on the improvement of existing mining methods, but also on the adaptation of new ideas. As the depletion of the high grade ore deposits in this country becomes a reality, the need for reducing the costs of mining is pressing. The successful exploitation of low grade ore bodies will depend upon the continued advancement in the science of mining.

The methods used today in driving a small drift or tunnel in …

Pre-Cambrian Geology Of Washington County Area, Missouri, Gordon Blair French

Masters Theses

"The Problem.

Washington County, Missouri contains a limited number of outcrops of pre-Cambrian igneous rocks, the majority of which are in the extreme southern part of the county. The known association of lead ore with buried or partially buried pre-Cambrian igneous knobs and ridges in this part of Missouri has led the St. Joseph Lead Company to prospect in areas known to contain these features. In its exploration program, the St. Joseph Lead Company has drilled a number of prospect holes which have encountered other occurrences of pre-Cambrian igneous rocks within the limits of Washington County. This drilling, correlated with …

Determination Of The Effect Of Air-Entraining Agents On Certain Physical Properties Of Concrete At Early Ages, James Arthur Spilman

Masters Theses

"Air entrained concrete over the past eighteen years has received national recognition as a result of its satisfactory performance in highway concrete pavements and other concrete structures subjected to outside exposure.

Numerous highway departments over the entire United States have laid test slabs made of air entrained concrete. Among those to date are Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, Vermont, Maine, Illinois, Missouri and California. The primary purpose in building these test slabs was to investigate their durability or resistance to freezing and thawing and the action of various salts on air entrained concrete. The results of the test …

Correlation Of Weir Crest Depth, Froude Number, H/P Ratio, Weir Thickness, Paul Harrawood

Masters Theses

"1. The Froude number criterion for weir flow was shown to be sound and accurate by experimental verification of the theoretical correlation of Froude number and critical depth. It was proved that sub-critical, critical and super-critical flows are correctly identified by the Froude number.

2. In order to accurately determine the Froude number, the actual flow section at the weir crest must be known. Because of end contractions, it does not have the same dimensions as the weir opening. For the Cipoletti weir, it is the product of the length of the crest and the crest depth, i.e., A= by. …

Investigation Of The Current Distribution On An Antenna In A Waveguide, David J. Freeman

Masters Theses

"In a communication system composed of several networks and transmission systems, it is necessary for all parts of the system to be impedance matched so that medium energy transfer is possible.

One of the recent transmission systems which has been developed is the wave guide. With the advent of the wave guide the communication engineer is immediately faced with the problem of coupling existing systems and networks to his newly found mode of transmission.

Practically this coupling problem reduces to one of feeding radio frequency energy to the wave guide with some conventional transmission line such as a coaxial line. …

Promotion Of Dropwise Condensation By Silicones, Charles Orlando Reed Jr.

Masters Theses

"Within this rather extensive field of study, transfer of heat through fluid films and heat transfer during the condensation process have been the subject of considerable thought and investigation both from a theoretical standpoint and with the aim of collecting data on specific systems to aid the design and construction of equipment in which heat transfer is involved….

The phenomenum of dropwise condensation has not become a common one in industrial practive for a number of reasons, namely, the difficulty in maintaining the activity of the promoter without frequent makeup because of impermanent attachment and volatility, the difficulty in finding …

Instructional Aids In Art For Elementary Teachers, Jeanne M. Fox Schier

Masters Theses

Chapter I

The Problem and Its Background

The Problem

The problem of this investigation is to develop a file of instructional aids in the art for use by elementary teachers.

The Improvement Of Teaching Through The In-Service Training Of The Instructional Staff, Glenn F. Van Blaricum

Masters Theses

No abstract provided.

Leading The Child To Beauty Through Music, Sister Mary Norbertine Quirk B.M.

Masters Theses

No abstract provided.

An Investigation Into The Merits Of The Competition-Festival In Instrumental Music, John D. Chambers

Masters Theses

No abstract provided.

The Relationship Of Athletics To Dropouts In High School, Marvin Wayne Bennett

Masters Theses

No abstract provided.

Mathematicians And Royalty: A Historical Survey, Loren W. Pixley

Masters Theses

No abstract provided.

Studies Of Five Normal Teenage Girls, Janice Jump Waggoner

Masters Theses

No abstract provided.

Student Guidance Services: Needs, Aims And Administration, Irl L. Schuyler

Masters Theses

No abstract provided.

A Guidebook For Orientation In The Litchfield Junior High School, Robert Donald Hall

Masters Theses

No abstract provided.

Welfare Organizations Offering Assistance To Children Attending The Battle Creek Public Schools, Donald G. Whitmill

Masters Theses

As the concept of public education broadens, and as the importance of all experiences related to the formation of an individual's total self is realized, the public schools are seen in a new perspective. The public schools become one link, albeit an important link, in a complex, tightly interwoven chain of institutions, organizations, and individuals concerned with the education of the whole child.

The purpose of this study, therefore, is to compile a comprehensive listing of all agencies, institutions, and organizations offering assistance to children enrolled in the Battle Creek, Michigan, Public Schools. This study will make a brief statement …

Trends In The Development Of Teaching American History In The Seventh Grade, James A. Spears

Masters Theses

No abstract provided.

An Appraisal Of A Current Trend In Educational Theory As Presented In A Recent Textbook, Alice Elizabeth Tolle

Masters Theses

No abstract provided.

Mary Todd Lincoln, 1818-1861, Mary Lutz

Masters Theses

No abstract provided.

A Comparison Of Athlete's Grade Point Averages With Those Of Non-Athletes With Similar Intelligence Quotients, Gerald W. Ferguson

Masters Theses

No abstract provided.

A Physical Education Program For Batavia, Illinois High School, Robert Tipsword

Masters Theses

No abstract provided.

A Guide To The Purchase Of Football Equipment, Louis K. Voris

Masters Theses

No abstract provided.

The Utilization Of Audio-Visual Aids In The Teaching Of Gregg Shorthand, Darlene Mills Hanna

Masters Theses

No abstract provided.

A Study Concerning The Need For Efficient And Continuous Instructional Improvement, Ray Edward Wright

Masters Theses

No abstract provided.

Public Relations In The Small High School, Roland Bernard Wickiser

Masters Theses

No abstract provided.

An Investigation Of Drop-Out Students Of Mattoon High School, James Steven Waltrip

Masters Theses

No abstract provided.