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Test 210: Mccormick-Deering Model W 30, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 211: Mccormick-Deering Model T-40 "Tractractor", Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Dielectric Constant Of Absorbed Water, Reiji Funabiki

University of the Pacific Theses and Dissertations

That the dielectric constant of a substance is one of its important properties is a fact that has been very commonly taken into consideration by electrical engineers in design of apparatus and transmission lines. The importance of the dielectric constant is equally evident to the chemist working in the field of nonaqueous solutions, and Walden and others have spent a great deal of time and energy in attempting to measure the relationship of the dielectric constant of a solvent to its solvent ability, the degree of ionization of a solute dissolved in it, etc. Indeed it has become very common …

Brachiopoda Of The Pennsylvanian System In Nebraska, C. O. Dunbar, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

A Study Of The Colloid Obtained From Weathered Lignite, Cecil O. Lohn

Theses and Dissertations

When Lignite is exposed to the action of weather it undergoes various changes, probably due to oxidation. Surface beds of lignite are often rejected by the miners as inferior coal, due to the weathered condition. But when this weathered lignite is treated with sodium hydroxide, and the resulting solution allowed to evaporate to dryness, there is left a hard, shiny substance very similar in appearance to hard coal. This dried product has been exploited under the name of Dakolite. When dispersed in water this product makes a very good wood stain.

Tests made on Dakolite show that it has colloidal …

A Study Of The Effect Of Temperature Upon Reactions Between Stannous And Arsenate Ions In Silicic Acid Gels, Ellis Elder

University of the Pacific Theses and Dissertations

Chapter I: Statement of the Problem

The purpose of this investigation was to determine to what extent the reaction between stannous and arsenate ions in silicic acid gels is influenced by temperature.

This was to be done by observing (1) the rate of crystal growth; and (2) the appearance of the crystal growth in sets of gels identical in composition but kept at different temperatures throughout the process of crystal growth.

The Electret - An Effort To Find The Cause Of Its Permanent Polarization, Ernest F. Lundeen

University of the Pacific Theses and Dissertations

Certain waxes when solidified in a strong electric field exhibit unusual electrical properties. Several days after formation there is a polarization in the direction of the field which seems to persist for an indefinite length of time. The surface that was in contact with the anode during formation first ass a negative charge and then obtains a positive charge, which under proper conditions is practically permanent. The surface that was in contact with the cathode first has a positive charge and then obtains a negative charge which is the permanent charge.

The Monadnock Volume 6, Number 1, December 1931, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 6, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).

The Influence Of A Halowax Oil On The Viscosity Of Lubricating Oil At Various Temperature, Clarence J. Riordan

Bachelors’ Theses

Halowax Oil is used as a.filler in plastic compounds, on wood as an insecticide against termites, and the Petroleum industry finds it a very good valve lubricant in internal combustion engines and a solvent for tarry residues which deposit on combustion chambers. Due to its low viscosity and very low congealing point it would therefore seem logical to investigate this further with the idea of using Halogenated oils as winter lubricants for automobile engines. The work naturally suggested further study, such as its effect on corrosion of steel, aluminum, iron and copper, the flash and fire points, viscosity at various …

Actino- And Thermo- Response Of Molybdenite In Vacuo With Various Colored Lights, John H. Fulton

Master's Theses or Doctor of Nursing Practice

The purposes of this investigation are to study the reaction of molybdenite cells to light of various colors while in vacuo and at various temperatures. The samples of molybdenite were also subjected to radiant heat in the last part of the experiment, which was undertaken to determine to some extent the amount of thermos-electric effect which was due to thermal radiation in the first part of the investigation.

General Steps In The Evolution Of The Calculus From The Time Of The Ancients To The Present, Sister Mary Virginia Ssf

Electronic Theses and Dissertations

This thesis, submitted to Xavier University in partial fulfillment of requirements for a Bachelor of Science degree in 1931, traces the historical development of the calculus from ancient Greek mathematics through the early twentieth century. The study is organized chronologically across eight sections. The introduction defines key mathematical terms including calculus, variable, and limit, and situates the calculus as the most powerful instrument of mathematical investigation. The thesis then examines the Method of Exhaustion developed by Greek mathematicians including Antiphon (430 B.C.), Eudoxus (370 B.C.), and Archimedes (225 B.C.), whose summation of infinite series represents the nearest ancient approach to …

Ua66/8/3 Second Rocky Mountain Field Trip, Wku Geography & Geology

WKU Administration Documents

Report on the Second Rocky Mountain Field Trip taken by faculty and students of the WKU Geography & Geology department.

The Viscosity Of Liquids, Mary Bede Brielmaier

Bachelors’ Theses

This thesis contains a review of the principal methods of determining the viscosity of liquids, with an experimental investigation of the oscillating disk method.

The Alkaloids, Felix F. Barre

Electronic Theses and Dissertations

This thesis, presented for the degree of Bachelor of Science, provides a systematic chemical study of the alkaloids, a class of complex nitrogenous plant substances possessing basic properties. Barre opens by defining the alkaloids and surveying the various systems used to classify them, whether by natural versus artificial origin, chemical nucleus (pyridine, quinoline, or isoquinoline), volatility, or botanical family of origin, and outlines their general physical and chemical properties, including solubility, optical activity, and characteristic reactions with precipitating and color-test reagents.

The thesis details standard laboratory methods for the extraction and separation of alkaloids from plant material, including a step-by-step …

Iowa Academy Of Science, Jacob W. Swisher

Iowa Academy of Science Documents

Reprinted from the July 1931 issue of the Iowa Journal of History and Politics published by the State Historical Society of Iowa,

Preliminary Construction Of A Photo-Electric Cell Concentrator, Stanley S. Williams

Bachelors Theses and Reports, 1928 - 1970

The separation of the valuable portion from the waste portion of an ore is an individual problem for every ore. However, the various methods for accomplishing this end, more or less classify themselves by the physical properties of the constituents of the ore. Most of the properties of minerals have been utilized in some way or other to affect the separation of the valuable from the invaluable parts. Practically nothing has been done so far with color and luster to attain this purpose.

It is believed that the photo—electric cell could also be used in concentrating a certain class of …

The Effect Of Alternating Current On The Rectifying Properties Of Metallic Salts In Contact With Metals, William Howard Schumaker

Bachelors’ Theses

However much may be said regarding the advantages of direct current, there is little doubt at present, that from the viewpoint of power generation and transmission, alternating current has considerable advantages over direct current. While such is the case, there is, and probably always will be, a need for direct current. According to our present development, this direct current is indispensable in wireless work, radio, and in the laboratory test shops, where it is necessary to work with very sensitive meters, which are inexpensive and easy enough to secure for direct current measurements, but which necessitates an elaborate and costly …

The Theory Of Exponents, Olive Marie Lass

Bachelors’ Theses

When one speaks of Algebra, with its laws and operations, one asks the question - Is it an ancient subject, and how old is it? In answer to this question I find it is necessary to go back to the years before Christ.

Solubility Curves Of Various Commercial Waxes In Several Organic Solvents, Lawson Joseph Ford

Bachelors’ Theses

The introduction contained herein is- merely meant to acquaint the reader with the common waxes. The subject matter itself has been purposely condensed. For more detailed accounts references are made to well known authorities throughout.

The Fundamental Theorem Of Algebra, John D. Fitzpatrick

Bachelors’ Theses

Algebra is indeed an interesting and intriguing field of knowledge. Many people fear and dread it, and­ yet what do they fear? Is not algebra a logical se­quence of simple facts based perhaps on a few self-evident truths? If people saw the value of algebra, they would strive more enthusiastically to understand its principles. John Locke has a fitting commentary on those who are unfamiliar with algebra.

An Investigation Of The Thermo- And Actino- Electric Properties Of Molybdenite, William Otis Johnson

Master's Theses or Doctor of Nursing Practice

Considerable work has been done on various mineral substances and chemical compounds within recent years to ascertain, if possible, whether the substance possessed any degree of photo- or thermos-sensitivity; and, to determine the characteristics of these responses. Among the most prominent substances which have been tested are selenium, bismuth, antimony, hematite, stibnite, and molybdenite. It was the purpose of this investigation to summarize the phenomena that have occurred within samples of molybdenite under a variety of conditions involving heat, light, and e.m.f.

The Development And The Application Of The Photo-Electric Cell, Walter C. Gieringer

Bachelors’ Theses

This thesis on photo-electric cells had its origin in a popular article in which the cell was used to operate relays. Being interested in such feeble photo-electric currents, I was allowed to pursue this subject as a thesis. In this work I encountered many amazing phenomena and innumerable applications of the laws of physics, so that now I feel as though I have not only reviewed that science, but also acquired a greater knowledge of that subject.

Current Efficiency Of The Commercial Chromium Plating Bath, John Kaczmarowski

Bachelors’ Theses

The subject matter of this thesis deals with the character of the chromium plate, the amount of hydrogen liberated at the cathode, the weight of the chromium deposited, and the cathode efficiency.

This investigation was made for the purpose of aiding .further research work to increase the cathode efficiency of the chromium plating bath. If greater efficiency can be obtained, then, chromium, as nickel, can be plated on small articles in rotating barrels.

Forty-Fifth Annual Meeting Of The Iowa Academy Of Science, May 1 And 2, 1931, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

The Spray Test In Chromium-Plated Brass, Paul Siegel

Bachelors’ Theses

For a great many years, the science of chromium plating has been investigated by eminent research workers in the domain of chemistry. The problem of deposition was solved some years ago by Carveth and Curry of Cornell University. At the present time there has accumulated such a vast mass of data upon the subject that it does not lie in the power of a single individual to obtain a truly thorough and comprehensive study of the entire problem in all of its aspects.

Substitution Of Hydrofluoric Acid For Sulphuric Acid In Chromium Plating, Leonard Schulze

Bachelors’ Theses

Chromium plating or the electrodeposition of chromium from chromic acid baths has been an accomplished fact for almost a century. However, it has not been until the last few years that considerable attributive information has been published to make the mechanism of the process sufficiently understood to permit its commercial operation.¹ Most of the scientific information published on chromium plating thus far is general there being very little specific information revealed as yet. Material, as shall be referred to occasionally, may be read about its early successful applications stressing the unusual properties, advantages, interests, and activities but very little …

The Solubility Of Certain Salts In Ethyl Iodide And The Miscibility Of Organic Liquids In Ethylene Bromide And Ethyl Bromide, Theodore F.X. Tribovii

Bachelors’ Theses

The problem is solely one of scientific interest. Ethyl iodide is commonly Known as an organic compound which is a very poor solvent, For this reason salts were chosen, which resembled atomically ethyl iodide. That is salts containing iodine. It would be commonly suspected that salts of this nature would, if any, be soluble in ethyl iodide.

A Volumetric Method Of Chromium Determination With Mercurous Nitrate, Gerald W. Lawton

Bachelors’ Theses

Boncyk in his research on potentiometric titrations, made the observation that apparently mercurous nitrate could be used to titrate chromic acid solution. He used potassium iodide as an outside indicator and found that a slight excess of mercurous nitrate gave a gray precipitate with potassium iodide solution. The precipitate seemed to indicate the end point, or the neutralization of the chromic acid; a slight excess of the mercurous nitrate causing the immediate formation of a gray precipitate. Not knowing the exact normality and purity of the solutions used, he could not ascertain whether the gray was the true end point, …

A Study Of The Plating Prohibitive Properties Of Various Separators, Bruno J. Pozorski

Bachelors’ Theses

The problem of this thesis is to study the plating prohibitive properties of the various materials commonly used in the manufacturing of separators, and to indicate which material would be most serviceable and feasible in a separator. At one time positives and negatives were kept not more than 0.25 inches apart, with the idea of reducing the intervening layers of electrolyte, and, therefore, the internal resistance of the cell, as much as possible. It was, however, found that the output could actually be increased by putting the plates at greater distances, the fact being that the larger bulk of solution …

Studies Of Respiration And Carbohydrate Changes In The Potato At 3 Degrees C And 20 Degrees C, Hermann I. Karl

Bachelors’ Theses

The purpose of this paper was to determine the effect which different factors would have on the respiration and the sugar content of potatoes. It is known that the sugar content of a potato may be increased with the lowering of the temperature. It is also known that with this lowering of temperature the respiration is also lowered. What other factors will effect the respiration and the sugar content of the potato and to what extent is the question to be answered.

Although this problem may seem of little importance because sugar .1e not wanted in a potato, yet the …