Physical Sciences and Mathematics Commons^™

Tungsten Plating, Allen J. Hipp

Bachelors’ Theses

During the past twenty years electro-plating has undergone a thorough transformation from an art into a science in which physical chemistry is playing an important role. The factors which govern the plating of copper, nickel and brass are well known. Recently new processes have been found for the plating of cadmium and chromium. Metals which give a bright surface and which will take a polish are in great demand. Nickel and chromium answer these requirements, and are used commercially for a variety of uses. Chromium has been a remarkable success as a plated surface because it is both a beautiful, …

Molecular Organic Compounds Of Ortho And Para Aminobenzoic Acids, Weldon E. Cate

Masters Theses

The nature of the linkage between the components of molecular organic compounds is not clearly understood, although the existence of this type of compound has been known for many years. Since efforts to explain the structure of molecular compounds by the different theories of valence have met with only partial success, a series of investigations is being carried out in the Chemistry Laboratories of the University of Tennessee in an effort to formulate a theory by which the structure and properties of this interesting but perplexing type of compound may be explained.

The object of this investigation of the molecular …

Problem-Solving In Arithmetic, Eva M. Acker

Bachelors’ Theses

For a century arithmetic has been a popular subject in the elementary schools, and has consumed more time than any other subject. The war had an effect in reducing this time on arithmetic, largely due to the war-time emphasis on health, food production, back-of-the-line morale, and kindred subjects. More recently, school activities and playground work have come in for a reasonable share of the school time. The Twenty-ninth Yearbook recognizes the child as the center of interest, and the final criterion of all values being the effect any technique of teaching or any content of instruction has on the child. …

The Recovery Of Copper In Sulphide Ores By Roasting, Leaching, And Electrolysis, Jack S. Greenough

Bachelors Theses and Reports, 1928 - 1970

Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition. The problem is to convert the sulphide into the oxide form. This can be done by giving the sulphide ore an oxidizing-sulphatizing roast. Copper sulphate is soluble in water, so acid will be saved in the leaching process if copper sulphate is present. The iron in the copper sulphide ores is present as pyrite, or in combinations as bornite, or chalcopyrite.

Some Notes On The Composition Of "Copper Pitch", Richard R. Matthew

Bachelors Theses and Reports, 1928 - 1970

A supply of so-called "copper pitch" ore was received by the Montana Bureau of Mines and Geology in response to a request by them from a resident of Kalispell, who had previously sent a specimen to the Bureau for a mineralogical analysis.

Since this material was little known and had apparently received but little study under a reflec­ting microscope, it was thought that such a study might throw some light on the mineralogical and chemical composition of the material.

The Effect Of Certain Organic Compounds On The Time Of Set Of Silicic Acid Gels, Daniel Howell Carver

Honors Theses

When a sodium silicate solution and an acid are mixed, a gel is sooner or later formed. The spped of gelation is a variable, and it depends on a number of factors, of which there are four fundamental ones. There are as follows: (1) The concentration of water glass (2) The concentration of acid (3) Agitation (4) Temperature. In this investigation of time of set, these four elements were kept as constant as possible. There is a fifth factor of real importance. This is one that has to do with the addition of some impurity. Of course if the impurity …

Study On Gels; An Attempt To Formulate A Theory To Account For The Liesegang Phenomenon, Casimir Bieleski

Honors Theses

For some forty years the explanation of Liesegongs rings has haunted the minds of colloid chemists. From observing the formation of various insoluble precipitate in different media, numerous theories were fabricated as will be recounted in the historical portion of this thesis. All of the theories were formed from external observation only. Some investigators used supersaturation, some adsorption, and others peptization to explain the phenomena. But this was at best an inductive guess. In trying to get inside the gel to observe what went on, it was decided to use the probing electrode. With the electrode it was possible to …

A Study Of The Structure Of Silicic Acid Gels, Charles Lawrence Raymond

Honors Theses

The general purpose of this investigation was an inquiry into the structure and process of setting of Silicic acid gels. The particular object of the work was to obtain quantitative results determining whether or not the structure of the acid radical or silicate radical in the sodium silicate could be changed by allowing the sodium silicate to react with sodium hydroxide, and if so whether or not such a change in structure would effect the time of set if gel. This investigation was carried out in collaboration with other work being done at Union College on several analyzed sodium Silicates …

Joint Planes In The Rhyolites Of The Butte District, Montana, John B. Hopkins

Bachelors Theses and Reports, 1928 - 1970

The problem herein discussed deals with the pointing planes found in the area of rhyolite located in the northwestern portion of the Butte District. The question to be determined was whether or not the pointing planes in the rhyolites could be class­ified with the Butte Ore fissure systems.

A Bentonite Deposit Near Warm Springs, Montana, R. H. Larson

Bachelors Theses and Reports, 1928 - 1970

This report deals with a bentonite deposit recently developed, approximately seven miles northeast of Warm Springs, Montana. A group of claims have been staked on the deposit and are owned by the Lincoln Mining Company of Anaconda, Montana. The company also has several claims prospected for silver one mile from its present site of operations, but the silver prospects have failed to produce. The bentonite deposit was discovered incidentally during the course of other development work, and at present two adits have been driven into the side of a mountain, each crosscutting a vein-like mass of bentonite varying from two …

The Adsorption Of Inorganic Material By Precipitated Aluminum Silicate, William Fiedler

Honors Theses

The gelatinous character of precipitated aluminum silicates suggested their possible use as adsorbents. A survey of the literature reveals many studies of the absorption of organic material by the natural clays such as Japanese acid clay, Fuller’s earth, Florida earth and kaolin. These concern special studies of these clays taken from various deposits. Many of them deal with applications of the clays to decolorizing the products of the petroleum industry. N.A. Held1 studied the absorption of the chlorides of aluminum and thorium by five different Russian clays. He found that the chloridesion is absorbed in negligible quantities, while the aluminum …

The Aplitic Body Bordering Roosevelt Drive South Of Butte, Montana, Edward B. Trueworthy Jr.

Bachelors Theses and Reports, 1928 - 1970

The area studied consists of a large body of aplite situated 12 miles south of Butte. It extends eastward almost to the Butte-Pipestone road, southward to Lime Kiln Hill and westward a distance of 3000 feet.

The petrographic work was supplemented by a map of the area. Special attention was given to those frequent "Limonite Specks" found in the aplite.

The Rate Of Precipitation Of Copper Aluminide In The Silver Rich Silver-Copper-Aluminum Alloys, Thomas Finley Mcbride

Bachelors Theses and Reports, 1928 - 1970

In order to determine the best annealing temperature at which to age-harden the alloys, hardness tests on speci­men annealed for different lengths of time at different temperatures were made.

The Effect Of Hydrogen Overvoltage On The Electrolytic Deposition Of Zinc, John M. Munzenrider, Kenneth O. Sweeney

Bachelors Theses and Reports, 1928 - 1970

In the deposition of metallic zinc by electro­lysis from neutral or acid solution, little difficulty is experienced provided certain impurities are absent from the electrolyte. The use of the process has long been considered as a potential source, patents on the process having been issued as early as 1880. However, the early experimenters failed to realize the importance of impurities in the electrolyte, and for this reason, the process suffered several severe setbacks when commercial plants were built.

The Electrolytic Deposition Of Chromium Upon Aluminum, E. Fults, L. D. Voerge

Bachelors Theses and Reports, 1928 - 1970

The purpose or this investigation is primarily to determine the best conditions for plating chromium on aluminum. The work was carried out with the hope of obtaining coherent deposits, and of determin­ing the conditions under which such deposits may be duplicated.

Development Of Geometry And Its Assistance In Promoting Society, Nelson Jean

Electronic Thesis and Dissertation

Geometry, the science of space and its relations which exist between its various elements, linear, superficial and solid, develops and helps society.

Development Of Geometry And Its Assistance In Promoting Society, Nelson Jean

Electronic Thesis and Dissertation

No abstract provided.

Thomas William Robertson, The Mid-Victorian Dramatist, James A. Fitzpatrick

Bachelors’ Theses

It is the purpose of this thesis to determine the position of Thomas William Robertson in the dramatic history of the nineteenth century, and to discover what contributions, if any, he made to the drama of this period. In addition to making a careful analysis of Robertson's more important dramas, I have read all the outstanding dramatic histories of the middle of the last century and some of its popular dramatic works. In my investigation of this problem I have explained the dramatic conditions of the early and mid-nineteenth century, revealed the characteristic tendencies of its popular plays, set forth …

The Design Of A Multiple Intake Drainage Well, Orville L. Eliason

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The reclamation of water-logged land by suitable yet inexpensive forms of drainage is becoming a problem of constantly increasing magnitude. A fairly large portion of the extensive land areas, once considered as worthless has proved to be valuable by the introduction of proper drainage systems. Land areas, in which drainage in its simpler forms has proved inadequate, could perhaps be made valuable were it possible to develop an inexpensive yet effective form of drainage.

This paper has been prepared primarily for a consideration of poorly drained land areas and a possible means of their reclamation by a suitable choice and …

The Effect Of Fruit Acids On Aluminum, Glenore M. Dugan

Bachelors’ Theses

Aluminum has been used in cooking utensils for about thirty years and is still the favorite material employed. There is no disagreeable taste, odor or discoloration discernible from its use.

There have been many experiments to prove that aluminum does not depreciate the quality of the food cooked in it. It does, however, add itself to the acidic and basic foods cooked therein. The amount taken up by neutral foods is negligible.

For experimental purposes, fruit juices were chosen as the attacking substances and the strips of aluminum were of the quality used in ordinary cooking utensils, not cast aluminum.

Throwing Power Of A Chromium Plating Bath Containing Hydrofluoric Acid Instead Of Sulfphuric Acid, Clarence E. Barta

Bachelors’ Theses

Chromium was discovered in 1797 by a Frence Chemist named Vauquelin who gave it its name from a Greek word for color because of its variety of colors which its various compounds show. The electrode-deposition of Chromium from a Chromium acid solution has been an accomplished feature for the past century but it has only been in the past few years that the mechanism of the process has been sufficiently understood to permit its commercial application.

Harding and Barrows state that it is possible to ob­tain satisfactory Chromium deposits from Chromic acid baths containing compounds other than sulfuric acid which …

A Study Of The Inhibiting Value Of Various Separators On The Plating Of Lead, Lawrence E. Ehrnst

Bachelors’ Theses

This thesis was suggested by the work of Mr. B. J. Pozorski and Mr. W. Adashek. Mr. Pozorski investigated the inhibiting qualities of various separators when placed between two platinum electrodes in a copper sulfate solution. Mr. Adashek worked on the efficiency of various lead plating solutions using lead electrodes and electrlyes containing soluble lead salts. Combining the work of these men, the author is investigating the prohibitive plating properties of various separator using a lead plating solution. By so doing, the investigation has a closer relationship to the actual performance of the storage battery .

Current Efficiency Of Various Chromium Plating Baths, Clarence R. Hanus

Bachelors’ Theses

Chromium is one of the hardest metals and when properly plated gives a beautiful lustre. It has a fine resistance to oxidizing agents and does not tarnish up to 600°C. Oxygen has little effect on chromium plate, making the latter invaluable for embellishments and decorative purposes.

However, there are difficulties to be overcome in chromium plating, such as,

1. Poor throwing power.
2. Formation of trivalent chromium.
3. Evolution of hydrogen at the cathode.

It has been found that current efficiency is low, resulting in low throwing power, uneven plating and waste of electric energy.

In this thesis it will be attempted to …

A Study Of Methods For Determining The Solvents And Diluents Used In Lacquers, William O'Donnell

Bachelors’ Theses

The subject matter of this thesis deals with methods of analysis for lacquer solvents and diluents. Lacquers are a comparatively new product and a big field of investigation is open to anyone. This subject as taken bee use it offered a special appeal to be able to investigate something that was new and practical.

The Problem Of The Trisection Of The Angle, Ruth O'Brien

Bachelors’ Theses

The great problem of the trisection of the angle dates back to the rise of the Sophist School about 480 B.C. The Sophist School was one of six Greek mathematical schools which included the Iconic, Pythagorean, Platonic, First Alexandrian and Second Alexandrian Schools. The periods of their existence overlapped considerably. thus, for example, Pythagorean activity continued during the time of the Sophists until the opening of the Platonic School. The rise of the Sophists to prominence came as a result of certain social and political conditions of the time.

Hyperbolic Functions, Dolores Fitzgerald

Bachelors’ Theses

No abstract provided.

Photometry, Arthur G. Barkow

Bachelors’ Theses

The preparation of this paper was not undertaken primarily with a view of discussing all types of photometer, but mostly for the investigation of the Ritchie Wedge. As for the first part, the history or resume is brief and somewhat incomplete. In the ensuing pages, no reference is given to the portable photometer, so helpful to illuminating engineers. This was not deemed necessary since the principle involved is similar to those discussed.

Ua66/8/5 Kyrock - The World's Best Pavement, George Huntington Clark, Ellen Churchill Semple Geographical Society

Student Organizations

Speech regarding Kyrock by George Huntington Clark, consulting geologist to the Kentucky Rock Asphalt Company given at a meeting of the Ellen Churchill Semple Geographical Society.

The Practical Evaluation Of Resultants, T. A. Pierce

Department of Mathematics: Faculty Publications

The purpose of the present note is to give a practical method of evaluating the resultant of two equations. The method is particularly effective when the degree of one of the equations is high while that of the other is low. Use will be made of certain results in the theory of matrices.

The Mandible Of Platybeldon Barnumbrowni, Erwin Hinckley Barbour

Bulletin of the University of Nebraska State Museum

Platybelodon barnumbrowni was described originally as Torynobelodon barnumbrowni.¹ The Nebraska State Museum was visited and this unique specimen studied by Dr. Henry Fairfield Osborn and Dr. Walter Granger, August seventeenth and eighteenth, nineteen hundred and thirty-two. It is the opinion of both that this specimen belongs properly to their Mongolian genus Platybelodon. With certain reservations the writer wishes to defer instantly to their judgment, which is based on unequalled experience. It is perfectly apparent that this form makes a close approach to the remarkable Platybelodons found by Granger and Andrews in the Gobi Desert of Mongolia, later figured and …