Physical Sciences and Mathematics Commons^™

Study Of The Setting Of Gels Of Hydrated Titanium Dioxide, Elliott Fraser

Honors Theses

Since titanium is in the same group in the periodic table as silicon, it should form gels in a similar manner. This expected similarity was the starting point for the following research.

The Preparation Of Pure Silicic Acid Gels By The Oxidation Of Silane, William G. Gapcynski

Honors Theses

The oxidation of silane, SiH, with ozone to give a hydrosol of silica of a very high degree of purity has been accomplished by Baibajew and Kargin. Such a sol is practically free from any electrolytes or other impurities. The purpose of this research work was to prepare by this method pure silica sols of a concentration great enough to eventually form a gel free from any electrolytes. It was desired to study some of the properties of such gels, especially the time of set and the changes if any in the pH of the gel during the time it …

Influence Of Temperature And Acid On Time Of Set Of Silicic Acid Gels, Angelo J. Marotta

Honors Theses

The chief purpose of this research was to study the time of set of silicic acid gels produced by the reaction of phosphoric acid and sodium silicate solutions. The secondary purpose was to determine the hear of activation by means of the data procured through the main purpose. The times of set of these gels were measured at four different temperatures. The pH of each gel was measured also. The pH of the above mentioned gels ranged from a pH of 3 to a pH of 10.

The Effect Of The Change Of Ph During The Time Of Set, Upon The Time Of Set Of Silicic Acid Gels, Harris W. Paton

Honors Theses

The study of this particular subject was made in the hope that it might lead to a more complete explanation of the manner of setting of gels. It was thought that by changing the pH during the time of set irregularities in the course of the setting of the gel might be found. It was thought, for example, that there might be a period during which the addition might have less effect than average, or a period where it would have a much greater than average effect. These periods might possibly have occurred at any part of the time of …

Determination Of Fossil Woods (Part V-Beech-Sycamore-Alder), George F. Beck

All Faculty Scholarship for the College of the Sciences

The group of woods considered in this paper are only superficially alike—no implication that they are closely related is intended. The beginner will almost certainly confuse the compound rays of these various woods with their annual rings.

Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner

United States Geological Survey: Water Reports and Publications

Introduction

The purpose of this survey was to obtain information concerning existing wells and springs and the quantity and quality of water they yield, and to put down test holes where additional information was needed.

This project was part of a statewide Works Progress Administration project known as a "Statewide Inventory of Water Wells," sponsored by the [Texas] State Board of Water Engineers. The Division of Ground Water of the United States Geological Survey cooperated in the technical direction of the project and the Bureau of Industrial Chemistry of the University of Texas furnished laboratory space and equipment and supervised …

Radioactive Properties Of The Subterranean Waters Of Ellis County, Kansas., Verne Lippert

Master's Theses

Soon after the discovery of Becquerel rays in 1896, tests were made on ordinary matter to see if all matter were radioactive. Although there is evidence to show that all matter is radioactive, to a degree and under certain conditions, it has been found that the greater part of the observable effect is due to traces of radioactive material permeating all matter in general. Thus, radium and its products being the most active of radioactive substances, the surface of the earth is covered with traces of these radioactive substances but the amount varies from place to place. Moreover, determinations of …

A Consideration Of The Cobalt Complexes, Jack Maloney

Chemistry Honors Papers

This 13 page thesis examines structural problems and preparation methods of complex cobalt compounds.

The Control Of The Grain Size Of Tin., Robert D. Macdonald

Bachelors Theses and Reports, 1928 - 1970

The tin alloys of tellurium are extremely hard and have very great tensile strength. It was thought that the reduction of the rate of grain growth of tin with the addition of tellurium accompanied this hardening and strengthening and such way found to be true.

The Inhibitory Effects Of Carbonaceous Materials On The Cyaniding Of Gold Ores., David Currie Jr.

Bachelors Theses and Reports, 1928 - 1970

Carbon and carbonaceous material have been known to have a deleterious effect upon the cyanidation of gold and silver ores since the very beginning of the process. Organic matter is a common source of impu­rities in cyanide solution, its reducing effect being notorious.

The Electrical Conductivity Of The Copper-Aluminum Alloys., William W. Hintalla

Bachelors Theses and Reports, 1928 - 1970

Among the many aluminum alloys which have been studied are the binary copper-aluminum alloys. These have proven to be among the most useful of the alumi­num alloys thus far worked upon.

The Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater

Bachelors Theses and Reports, 1928 - 1970

It has been proven that cadmium forms a very satisfactory plate on steel, which has to withstand severe corrosion, especially the corrosion of sea water and spray. The metal is now successfully plated electrolytically from cyanide solutions, but wherever work is carried on with cyanide, there is great danger of poisoning to the workers.

The Effect Of Temperature On The Rate Of Dissolution Of Gold In Cyanide Solutions Which Have A Constant Oxygen Content., Robert Currie

Bachelors Theses and Reports, 1928 - 1970

Since the development of cyanidation into a highly efficient process for treating gold ores, many papers have been written on its various aspects. Although, there has been much work done on it, the chemistry of the reaction is not yet completely understood.

The Presence Of Rhenium In Montana Manganese Ores., Henry E. Swanson

Bachelors Theses and Reports, 1928 - 1970

Rhenium properties offer many interesting possibilities, therefore any ores containing rhenium would be of considerable value. Its close relationship to manganese in the periodic table led to the belief that manganese ores would be an excellent place to search for the metal. Investigation of the literature of rhenium revealed that no ore was known to contain more than 0.001 per cent of rhenium.

The Theory Of Determinants: Some Special Forms And Applications, William Ralph Eikelberger

Master's Theses

The theory of determinants is a relatively new branch of mathematics; it was not firmly established until a brief 200 years ago. It was not until the middle of the 18th century that Cramer, one of the independent discoverers of the fundamental idea, was fortunate enough to attract attention to the theory of determinants. Much of the literature is written on the assumption that its reader has a good background in the subject. Then other authors just give the fundamental properties of determinants without proof of their statements. These latter authors are not interested in the mathematical theory of determinants, …

The Electrowinning Of Copper From Roasted Sulphides, Thomas B. Linn

Bachelors Theses and Reports, 1928 - 1970

A hydrometallurgical process for the recovery of copper from flotation concentrates has long been con­sidered an attractive possibility. The object of such a method is to produce electrolytic copper without resorting to expensive matte smelting and converting.

Electrolytic Recovery Of Copper And Zinc From Brass, D. H. Swank

Bachelors Theses and Reports, 1928 - 1970

The purpose of this research was to continue the work of Thomas Parker, who worked on the recovery of copper and zinc from brass during the school year l934 - 1935. Since there is such a wide variety of brasses made with usually a third alloying constituent, remelt­ed scrap is suitable only for castings of wide tolerance in specifications.

Formations Of The Columbia Basin, Parade Of Extinct Mammals, George F. Beck

All Faculty Scholarship for the College of the Sciences

In this preliminary chart are shown the extinct mammals encountered as fossils in the various formations among and above the great Columbia Basalt series of the Pacific Northwest. A few shown as appearing in the Lake Vantage horizon of the basalts.

A Study Of The Equilibria Between Bentonite And The Various Replacing Agents In Alcoholic And Water Solutions, Joel E. Fletcher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigators in soils have long recognized the importance of the colloidal fraction of soil, and also the almost inseparable problem of replaceable bases. It is generally accepted that the replaceable base fraction of a colloid controls to a large degree the physical properties exhibited by it. Volumes of work have been written on the problem of controlling the reactions of this fraction and on studies of the properties exhibited by it when it is saturated with various cations. Each worker has proceeded in his own individual way or followed the example set by some previous worker with specific modifications.

Envelope Curve, Gladys Catherine Apel

Bachelors’ Theses

The theory of motion led three great mathematicians of the seventeenth century into the study of the envelope of a moving line. It was introduced by Christian Huygens, further developed by Ehrenfried Walther von Tschirnhausen, and carefully analyzed by Gottfried Wilhelm Leibniz.

Nickel And Its Determination, Robert Fitzpatrick

Bachelors’ Theses

I have found great pleasure in writing this thesis on Nickel and wish to express my appreciation for the assis­tance received from various sources. The thesis itself contains a brief history of the metal followed by an experi­mental determination of the nickel content of some commer­cial steels. These were kindly furnished by the analytical department of the International Harvester Company to whom I am grateful.

For the history of nickel I am especially indebted to the account by Robert c. Stanley, President of the Inter­national Nickel Company, reproduced in Wilhelm's, The Book of Metals.

For the material on the …

The Deposition Of Monomolecular Films., Albert Wilbur Schlechten

Bachelors Theses and Reports, 1928 - 1970

The formation of monomolecular films is possible because of the action of the heteropolar molecules of certain fatty acids, especially stearic. Under the proper conditions the acid will spread out until a monomolecular film is formed.

Geology Of The Tuxedo Mining District, R. W. Lawson, B. R. Tarrant, A. L. Gallagher

Bachelors Theses and Reports, 1928 - 1970

The Tuxedo mining district lies fifteen miles west of Butte on the south east end of Deer Lodge valley. Prospecting and mining has been carried on in this district for about 20 years. As a result many pits have been dug, several adits have been driven, and two or three shallow shafts have been sunk.

Determination Of Fossil Woods (Part Iv-Walnut-Hickory-Persimmon), George F. Beck

All Faculty Scholarship for the College of the Sciences

These three woods undoubtedly ranged over Western America in Tertiary and were well represented in the Ginkgo series of forest during Miocene. Fossil walnut wood is the more abundant of the three species, while hickory is not common.

Determination Of Fossil Woods (Part Iii-The Elms), George F. Beck

All Faculty Scholarship for the College of the Sciences

The elms are among the best known and most beloved trees found native to America. Like the redwood they belong to that large group of trees which in preglacial days grew generally over the northern hemisphere.

Camels Of The Columbia Plateau, George F. Beck

All Faculty Scholarship for the College of the Sciences

However foreign they may seem to us the camels are one of our oldest American stocks. Our Western plains once supported large herds of them, humped and humpless, large and small, giraffe-necked and normal-necked. For some 35 million years, from Oligocene to the Pliocene, the camels were confined to North America and it was not until recently, geologically speaking that we shared the race with the Old World.

Educative Value And Construction Of Laboratory Equipment For Physics, With Emphasis On An Optical Screen, Warren D. Conrad

Bachelors’ Theses

In the preparation of this thesis the writer has constantly kept in mind three distinct purposes: a) to show the place and importance of the lecture-demonstration in the teaching of physics; b) to provide the teacher of physics in the small high school a means whereby he may equip a laboratory at the smallest possible cost; and c) to describe in detail the construction of an optical screen for purposes of demonstration, indicating what can be done. in the building of home-made physics apparatus.

A Comparison Between The Percent Of Maltose Sugar In The Malt Wort And The Characteristics Of The Malt, William Black

Bachelors’ Theses

Interest in this problem was brought about through working with malt in a malting laboratory. The curiosity of the author prompted research along the lines herein explained and a correlation between the amount of maltose in a malt wort and other variable factors explained in the following chapters was sought.

There has been a great deal of work done in the malting field which adapts itself readily to organic research. The chemistry of malt and malt products has arrived at a state where regular standard analysis can be applied. However, the research possibilities are practically unlimited and this work done …

Determination Of Fossil Woods (Part Ii-The Oaks), George F. Beck

All Faculty Scholarship for the College of the Sciences

The oaks, unlike the sacred ginkgo or temple tree, are thriving throughout the northern hemisphere today. Not only is the oak an entirely familiar and abundant element in existing landscapes, but its history goes back into the centuries and ages. Its leaves and woods are generously represented in fossil forests as far back as the early Tertiary and closely allied forms penetrate as far back as the Cretaceous.

Salt Domes Of Central Anatoli̇a, Cevat E Taşman

Bulletin of the Mineral Research and Exploration

No abstract provided.