Physical Sciences and Mathematics Commons^™

M. T. A. Ensti̇tüsünün Faali̇yeti̇, - -

Bulletin of the Mineral Research and Exploration

No abstract provided.

Etütler Mersi̇n Tarsus Kuzey Bölgesi̇ni̇n Jeoloji̇si̇, Zati Ternek

Bulletin of the Mineral Research and Exploration

No abstract provided.

Bati Almanya, Fransa Ve İngi̇ltere'de Urani̇um Mi̇neralleri̇, Orhan Bayramgi̇l

Bulletin of the Mineral Research and Exploration

No abstract provided.

Über Di̇e Chrombesti̇mmung İn Chromi̇ten, Heribert Grubltsch, İhsan Topaloğlu

Bulletin of the Mineral Research and Exploration

No abstract provided.

3 No. Lu Çengen Kuyusunun Petrografi̇si̇ Hakkinda Not, Orhan Bayramgi̇l

Bulletin of the Mineral Research and Exploration

No abstract provided.

Test 502: Willys Farm Jeep, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Test 500: New Fordson Major (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Test 501: New Fordson Major, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

A Colorimetric Coulometer, Clayton C. Roth

Master's Theses

In the study of many electrochemical processes, such as, surface adsorption on electrodes, a simple, rapid, and relatively accurate coulometer that will measure .01 to 1.0 coulombs, would be extremely useful. This project was commenced to investigate the feasibility of an entirely different approach for coulometric analysis for application in this range.

This new type of coulometer utilizes a colorimeter for determining the amount of coulombs passed through coulometer cell. Consequently, any electrode process which of its own nature is color-producing, or a process which, in turn, can actuate a color indicator, is a potential reaction for this colorimetric couloumeter.

A Statistical Evaluation Of Various Determinations Of Germanium, Kenneth William Bartz

Bachelors’ Theses

Germanium first came to the author's attention under the heading of "A Study of the Excited States of Matter." The various and diverse, not to mention peculiar properties of this element aroused my interest. But upon further studying of this unusual element my concern switched from its properties to the methods of analysis. It is the purpose of this paper to discuss and correlate the numerous and varied analytical determinations. However, actual determinations are limited to instrumental procedures only.

For the evaluation and interpretation of the date, Statistical Analysis is used. The author's qualification in Statistical Analysis include a year …

Mechanism Of Adsorption Of Cations By Silicate Minerals, Milton Glen Armstrong

Theses and Dissertations

Adsorption of cations by clays has been a subject of investigation for many years. Many proposals have been advanced to explain this process of adsorption. Two proposals have been prominent in recent years. The Marshall "charged lattice" theory attributes adsorption of cations by clays to an electrostatic attration of the clay particles for cations. This charge on the clay particles is attributed to various isomorphic substitutions in the lattice of the clay which result in an unbalanced charge on the particle. This isomorphic substitution can take place either in the silicon-oxygen tetrahedra of the silicate structure or with the aluminum …

The Characteristic Roots Of Certain Real Symmetric Matrices, Joseph Frederick Elliott

Masters Theses

The main purpose of this thesis is to collect and coordinate some known results in the study of characteristic roots of certain real symmetric matrices. Specifically, most of the matrices considered have their elements a_ij = 0 except for I i - J I < 1 and are known as Jacobi matrices. The thesis fills in the details of two papers by D. E. Rutherford [12; 13]¹ , with some translation of his results for determinants to the problem of finding characteristic roots of matrices. Some of the results obtained are briefly discussed relative to certain theorems on bounds for characteristic roots.

The first part of the paper is an attempt to show some of the physical sources of the problem …

Test 499: Allis-Chalmers Model Wd-45, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Test 498: Intercontinental Model Df, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Collector-Depressant Equilibria In The Selective Flotation Of Sulfide Ores, Heber Ross Olson

Theses and Dissertations

This dissertation presents the results of a collector - depressant equilibria study of the flotation systems potassium n-amyl xanthate - sodium cyanide - molybdenite and ethyl zanthate sodium sulfide - molybdenite and the study of conditions necessary for the selective flotation of covellite, tetra-hedrite, bornite, chalcopyrite, molybdenite, marcasite and pyrite in the system ethyl xanthate and sodium cyanide; the conditions necessary for the selective flotation of pyrite, covellite, bornite, galena, chalcopyrite, active sphalerite, and molybdenite in the system potassium ethyl xanthate and sodium sulfide; the conditions necessary for the selective flotation of molybdenite and pyrite in the system of potassium …

Test 497: Case Model Sc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Test 496: Case Sc Gas, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker, point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST B: The throttle …

Test 495: Someca Da 50, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Itaconic Acid Derivatives Of P-Amino Alkyl Sulfone, Wilbur B. Clarke

Electronic Thesis and Dissertation

This investigation is concerned with the preparation of 1(p-R1 Sulfonyl)-phenyl-5-oxo-3-pyrrolidine carboxylic acid by direct fusion of itaconic acid with the respective p-Amino phenyl alkyl or aryl sulfone, and its continuation of work previously reported

The Catalytic Power Of Portland Cement Gels, Constantine Aloysius Neugebauer

Honors Theses

For several years research has been done at Union College investigating the possibility of using Portland Cement as a chemical raw material. Investigations by Clark in 1951 indicated that vigorous reactions take place when Portland cement and strong acids are mixed.

Studies On "Ludox" Silica Sol, Edward Francis Weyand

Honors Theses

The work presented in this paper is an extension of the work done by Petrucci in 1950. Here we wish to consider the process of gelation of Ludox by measuring the change in surface tension during gelation and also the possibility of treating BiO2-H2O-alcohol systems on a triangular phase diagram.

A Study Of Gel Formation With Sodium Methyl Siliconate, Alan Robert Winterberger

Honors Theses

This study of sodium methyl siliconate is the first done with this compound at Union College. It was believed that gels could be produced with sodium methyl siliconate and the object of this work was to verify the assumption. After the gels were obtained, they were to be investigated in the same way as many previous workers have done with sodium silicate.

Ultraviolet Spectrophotometric Determination Of Metals With Thiocarbanilide, John Jeremiah Gritmon

Honors Theses

The ultraviolet absorption spectra of thiocarbanilide (diphenylthiourea) were determined in aqueous solutions of varying acidity. A correlation between the absorption spectra and data obtained has been attempted.

Szilard-Chalmers Reactions, Anita Camilli Mewherter

Honors Theses

Since discovery of radioactivity at the turn of the century, the use of radioactive isotopes has become increasingly significant to research in the fields of chemistry, biology, botany, and medicine. An important use of these radioactive isotopes is the tracer or indicator method. For example, a portion of radioactive potassium may be added to a sample of of stable potassium to be studied. The fact that a given isotope is radioactive does not, in most cases, affect its chemical properties. The presence of the active isotope allows the potassium now to be followed through a chemical or biological process. This …

The Catalytic Vapor Phase Alklation Of Phenol, Robert Andrew Clendinning

Honors Theses

The purpose of this research is to study the reaction between ethyl alcohol and phenol over a chemically activated alumina catalyst at several temperatures. The reaction of phenol and ethyl alcohol is also studied over the support used in preparing the activated catalyst to determine the catalytic activity of the support. An attempt is also made to correlate the data obtained by previous workers at Union College, who have studied the reaction between phenol and methyl alcohol and the reaction between phenol and ethyl alcohol.

A Study Of The Oxidation Stability Of Lubricating Oils, Frank Albert Pepe

Honors Theses

This past year, research work was done on the oxidation of lubricating oils. Since this is the first year that this research project has been carried out, our work was mainly directed towards finding ways of attacking the study of the oxidation of lubricating oils. We have found a few paths which warrant further investigations.

A Study Of The Thallium Dithizone Complex Using Radioactive Tracer Techniques, Ferdinand J. Schuette

Honors Theses

In the present work, use has been made of a radioactive isotope of thallium as a tracer in the study of the thallium dithizone complex.

On The Continuity Of The Real Roots Of An Algebraic Equation, Melvin Henriksen, John R. Isbell

All HMC Faculty Publications and Research

It is well known that the root of an algebraic equation is a continuous multiple-valued function of its coefficients [5, p. 3]. However, it is not necessarily true that a root can be given by a continuous single-valued function. A complete solution of this problem has long been known in the case where the coefficients are themselves polynomials in a complex variable [3, chap. V]. For most purposes the concept of the Riemann surface enables one to bypass the problem. However, in the study of the ideal structure of rings of continuous functions, the general problem must be met directly. …

Reactions In The Synthesis Of Indazole, John Earl Sigsby Jr.

Honors Theses

This work was undertaken in order to study the reactions that lead to the formation of Indazole. There are many possible variations that effect the final product. Some of them are studied here, such as the effect of heat upon the initial reaction, change of solvent, and the decomposition of the nitroso intermediate.

The Construction And Operation Of A Universal Specimen Mount With Protective Lead Shield For The Purpose Of Determining Pole Figures Using The Schulz-Decker Transmission Technique, Richard L. Fausner

Bachelors Theses and Reports, 1928 - 1970

It was the purpose of this study to construct a universal mount, to construct a protective lead shield, to operate the instrument, and to provide a pole figure using the transmission method of Schulz and Decker. There are at present several lengthy x-ray methods of determining the grain orientation of metals. These methods are mainly photographic. In order to provide a rapid means of obtaining the necessary information concerning the grain orientation of a metal, a universal mount was constructed.