Physical Sciences and Mathematics Commons^™

The Tangent Surface To A Circular Helix, David Alan Rux

Bachelors’ Theses

The circular helix is a space curve which may be defined as the curve generated by a point on an element of a circular cylinder as the point moves along the element and the element moves around the cylinder, both at a constant rate. The circular helix may also be defined as the curve, on the surface of a circular cylinder, which cuts each element of the cylinder under the same angle.

The Effect Of Metals On Yeast Activity, Warren Joseph Chamberlain

Bachelors’ Theses

The writer, having been employed in the dry yeast research laboratory of one of this country's largest yeast concerns for the past three years, is very much interested in those factors which might affect the qualities of the final dry yeast product, and has therefore made the investigations presented in this paper.

Because of the numerous pieces of metallic equipment employed in the production of yeast, the possibility of metallic contamination in the final yeast product is considerable. Thus, the investigation presented in this paper was carried out in an effort to determine just what effect various concentrations of various …

The Catalytic Reduction Of Several Omega-Cyclohexyl Substituted Aldoketene Dimers, Charles U. Whitson

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

A Compilation Of Published Research In Elementary Arithmetic Since 1931, Alfred C. Birdsell

Master's Theses or Doctor of Nursing Practice

Many articles are published each year pertaining to elementary arithmetic. Some of these may very properly be designated "mere opinion” while others may very properly be classified as "research". Because of the large number of such articles appearing in print pertaining to some aspect of arithmetic, no doubt a service may be rendered to teachers of the subject by evaluating and classifying them as research or otherwise. From this situation grew the problem of this thesis, the title of which may be stated as follows: A Compilation of Published Research in Elementary Arithmetic Since 1931. Such a guide should be …

An Investigation Of The Electrolytic Behavior Of The Nitroparaffins, Harold A. Brejcha

Master's Theses or Doctor of Nursing Practice

A study of the electrolytic behavior of this group of compounds was undertaken to gain some knowledge of a little known type of reaction of these compounds. The study was made, not so much in view of developing new uses for these compounds, as to gain a better understanding of their behavior under various conditions. Another reason for this investigation is the fact that chemical reduction by the usual methods is inconvenient. With this fact in mind, the inherent convenience of electrolytic methods made the study of the electrolytic behavior of the nitroparrffins worthy of investigation.

Test 448: John Deere Mc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere MC 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 …

Fourier Series And Some Applications, Lawrence D. Marcotte

Master's Theses or Doctor of Nursing Practice

The object of the author in writing this thesis was to make a compilation of material necessary to work certain problems in mathematical physics with one use of Fourier series. Although whole books have been written on different aspects of this thesis, all had some intervening material which was too advanced for the average student. Any students interested in mathematics or physics cannot fail to see the importance of Fourier series. To mention a few applications, the series is used in finding the solution to various problems in heat distribution, electrical transmission, and aircraft construction.

The Pleistocene Geology Of The Middle ·Portion Of The Elkhorn River Valley, W. D. Frankforter

University Studies (University of Nebraska) (1888–1984)

The present report is a physiographic and paleontologic approach to the Pleistocene history of a portion of the Elkhorn River Valley in parts of Dodge, Cuming and Stanton counties in northeastern Nebraska. The area is important for correlation of deposits between the glacial and periglacial regions. Some of the critical stratigraphic units used for correlation in the Pleistocene of these regions are present in close association with the tills and contain fossils which make possible reliable statements on contemporaneity of deposits. The subsequent geologic history and present physiographic expression of this area have been greatly controlled and influenced by the …

Deamination Of Certain Toluidines Through Diazotization And Decomposition Of The Diazonium Salt With Alcohol In The Presence Of Copper, Ralph E. Schaeffer

Bachelors’ Theses

Historically credit is given to Johann Peter Griess tor the discovery or diazo compounds in 1858 (8). Six years later, Griess reported that diazonium salts of benzene yield benzene when boiled with alcohol (31). At first it was thought that only hydrocarbons were formed when diazonium salts of benzene were boiled with alcohol. However, in 1870 ethyl ethers were found to be products or the reaction between diazotized chlorotoluidines and ethyl alcohol (31). Since that time much attention has been given to the factors influencing the formation of hydrocarbons or ethers as a result or the reaction between diazonium salts …

Comparison Of Worts Prepared By Action Of Malted Barley On Various Flours And Starches, Charles J. Doria

Bachelors’ Theses

The object of this thesis to compare the yields of soluble solids, reducing sugars, and proteins in worts prepared by the action of malted barley on various flours and starches. Mashes were prepared and analyses were made on worts prepared from the following:

1. White Wheat Flour

2. Whole Wheat Flour

3. Potato Flour

4. Potato Starch

5. Sweet Potato Flour

6. Oat Flour

7. Tapioca Flour

8. Corn Germ

9. Corn Germ Meal

The results obtained are presented in tabular form as well as graphically for ease in making comparisons. In addition, besides presenting the results calculated on an …

Test 447: International Td-24, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Czarina Mine, Butte, Montana, Prodyot K. Das

Bachelors Theses and Reports, 1928 - 1970

The Czarina mine operated for a short time during the last Great War, lies in the southwestern corner of the Butte mining district of Montana. This area was worked during the extensive silver mining in Butte during the 1890's, and was prospected from time to time in later years. The orebody of the mine consists of fissure fillings of manganese mineral oxidized to a certain depth, in a fracture zone of the Boulder Batholith.

Test 446: International Td-18a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 445: International Td-14a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 444: Ford 8nan, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 443: Ford 8n, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 442: Cockshutt 40, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

An Investigation Of The Iodination Of P-Alkylphenols, Harold H. Gill

Master's Theses or Doctor of Nursing Practice

The purpose of this investigation was to see if a series of the iodinated p-alkylated phenols could be prepared. These compounds would probably be of the type if substitution of a single iodine atom occurs. Substitution of two atoms of iodine would produce compounds of the type.

Mineralization Of The Bonanza Mine, H. M. Callaway

Bachelors Theses and Reports, 1928 - 1970

The Bonanza mine of the Emery mining district in Powell County is on the largest veins in the area, and is developed to a depth of 680 feet by an incline shaft following the dip of the structure. Sulfide ores carrying gold and silver values are mined throughout the area which is easily accessible by road from Deerlodge, Montana, ten miles west of the district.

A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties, Vincent H. Dreeszen

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Montana Talc; Problems In Physical Properties, E. C. Armstrong

Bachelors Theses and Reports, 1928 - 1970

General information on talc, including foreign and United States occurrences, origin, and uses is covered. Montana deposits are discussed in greater detail as to location, geology, mineralogy, and mining. Studies of talc by petrographic and x-ray methods and an experiment to determine the porosity are described and discussed.

Importance Of Unconformities To Oil Occurrence In Montana, Robert E. Evenson

Bachelors Theses and Reports, 1928 - 1970

Although the majority of geologic structures in Montana have been tested in the search for petroleum, only a few have been found to contain commercial quantities of either oil or gas, and with each successive dry hole, producers are becoming more and more wary of investing capital in new wells located on structural features alone. It is apparent that if new oil and gas fields are to be found in Montana, exploration must be done on the basis of some­thing other than structure, or combined with structure.

Fauna Of The Pilgrim Formation Of The South Boulder Creek Area In Southwestern Montana, John T. Eastlick

Bachelors Theses and Reports, 1928 - 1970

This paper, a study of the fauna of the Pilgrim formation at South Boulder Creek in southwestern Montana, represents a laboratory study of the fossil specimens collected by Dr. Alvin Hanson during the summer of 1949. The scope of investigation includes identification and classification of the faunas, their stratigraphic relationship and zonal subdivisions.

Foraminifera From The Colorado Shale Near Sunburst, Montana, Frank R. Reynolds

Bachelors Theses and Reports, 1928 - 1970

One of the many secrets which planet Earth has jealously kept from its inhabitants is the microscopic fossil form known as the foraminifer. It hides in common shale, awaiting the patient and painstaking searcher. In furthering the study of the foraminifera of the Colorado group of for­mations in Northern Montana_, the United States Geological Survey has collected several suites of shale samples from the Sunburst Dome, five to ten miles south of the Canadian border and twenty-five miles north of the city of Shelby, Montana_.

A Study Of The Effect Of The Maximum Melt Temperatures Upon The Degree Of Supercooling Of Gallium, Wilfred E. Nagel

Bachelors Theses and Reports, 1928 - 1970

If, in a system at a giv­en temperature, there should occur a decrease in free energy and this decrease does not take place, then the resulting condition of the system is termed supercooling. A common example of the phenomenon is found in the liquid-to-solid transition of many substances, when the temperature of the liquid may be lowered below its freezing point without solidification. Similar phenomenon occurs in the gas-to- liquid, gas-to-solid, and polymorphic transformations.

Fauna And Stratigraphy Of The Meagher Formation At Three Localities In Southwestern Montana, William J. Van Matre

Bachelors Theses and Reports, 1928 - 1970

In the past 75 years, the scenic area about the head­waters of the great Missouri River has attracted the atten­tion of many leading stratigraphers and paleontologists; for in this area bountiful outcrops of Paleozoic fossil horizons are available for study and correlation.

Mottling In The Meagher Limestone, Ronald J. White

Bachelors Theses and Reports, 1928 - 1970

The middle Cambrian Meagher limestone of southwest Montana is characterized by mottled members that are finely crystalline in the tan part and microcrystalline in the dark matrix. As seen in the literature, similar mottled limestones are thought to be an arrest­ed stage in the dolomitization, or alteration of limestones.

A Study Of The Divide-Dewey Contact Of The Boulder Batholith, Francis M. Young

Bachelors Theses and Reports, 1928 - 1970

The batholith is dated as Paleocene or early Eocene. The rocks of the batholith in this area are classified as ranging from quartz-granodiorite to granodiorite. Variation in mineral content causes a chance in color tone from light to dark gray. swarms of inclusions occur in the igneous rock near the contact.

Foraminifera Of The Colorado Shale At Fort Benton, Montana, Robert E. Willson

Bachelors Theses and Reports, 1928 - 1970

Shale is known to be a source-bed for oil, and the Colorado shale which is over 2000 feet thick in places may well be the source for the oil which is now accumulated in the included or closely associated sandstones. A thorough study of the fossil content may not only be helpful in correlation of Cretaceous sediments, but it likewise may be the starting point for studies ^-which could eventually lead to the discovery of unknown mineral deposits.

Periodic Precipitation In Capillaries, James A. Magerl

Bachelors’ Theses

Work on this problem was undertaken because of interest in periodic precipitation. It is hoped that this thesis will be able to report on a few of the substances not previously investigated that will precipitate periodically in capillaries.