Engineering Commons^™

Surface Reactivity Of Aliphatic Nitriles On Chalcopyrite And Sphalerite, Gary Mitton

Bachelors Theses and Reports, 1928 - 1970

This thesis reports an investigation concerning the adsorption of aliphatic nitriles by chalcopyrite, activated sphalerite, and unactivated sphalerite. The experimental evidence suggests that abstraction, chelation and re-adsorption may take place. On the basis of the experimental results, an equilibrium-type adsorption hypothesis is proposed.

Paragenesis Of The Primary Ores Of The Norwich Mine, Edward E. Scheitlin

Bachelors Theses and Reports, 1928 - 1970

The Norwich vein is thought to belong to the Anaconda vein system. It contains fairly large deposits of manganese. The study of 19 thin sections and 15 polished sections was made to determine the paragenesis of the vein minerals, which is: quartz-pyrite, rhodochrosite, quartz, minor rhodochrosite, quartz-pyrite-sphalerite, galena, freibergite and later quartz. Some supergene rhodochrosite was found and most of the silver minerals were found to be supergene origin.

Crossover Networks For Loudspeakers, Edward A. Brown

Electrical and Computer Engineering ETDs

No abstract provided.

Drilling And Drilling Trends In The United States For Mining, Sidney D. Cooper

Bachelors Theses and Reports, 1928 - 1970

This thesis, which is a requirement for a degree in Mining Engineering, emphasizes many current drills and drilling trends; however, without a complete discussion of the numerous factors that effect drills and drilling the reader would still be at a loss in selecting a drill to fit his particular need. With this purpose in mind, I have first attempted to discuss the many variables which must be considered and this is followed by the various types of drilling and drills.

Hydraulic Shaft Mucker, Frederick D. Owsley

Bachelors Theses and Reports, 1928 - 1970

Until recent years, mining has depended upon the muscles of men to supply the power required to obtain ore. With the rising cost of labor and the increased demand for metals, mine management has turned to machines to meet these demands. With the coming of the machines, the mechanization of mining began, and a new era in mining developed. Great strides have been made in drilling, hoisting, haulage, etc; but the sinking of shafts still create a costly operation.

Prospecting For Uranium In Montana, Louis Karhi

Bachelors Theses and Reports, 1928 - 1970

Atomic Energy Commission releases reports of investigations such as RMO, RME, TEI and TEM reports, etc., also releases airborne anomaly maps. Various libraries and A.E.C. offices have these reports on file. The Montana School of Mines library has maps, various reports on the mineral industry, and receives reports prepared by or for the Division of Raw Materials of the A.E.C. Certain other libraries are designated as official U.S. Atomic Energy Commission Depository Libraries and receive copies of all types of unclassified reports.

Geology Of A Portion Of The Hand Mine, Argenta Mining District, Beaverhead County, Montana, John Thomas Richards

Bachelors Theses and Reports, 1928 - 1970

The Hand Mine is located in the Argenta Mining District near the town of Argenta. The area surrounding the Hand Mine is characterized by intense thrusting, folding, and igneous activity. The area mapped by the author is in the southeast portion of the mine and differs from the rest of the mine in that no commercial ore has been found. The writer concludes that the steep faulting and flatlying bodies are of two different ages, and that intense oxidation has altered the ore minerals to plumbojarosite.

Oxidized Copper Mineralization Along The Continental Fault Near Butte, Montana, Theodore H. Eyde

Bachelors Theses and Reports, 1928 - 1970

Located in the fault zone of the Continental fault near the western edge of Boulder batholith of southwestern Montana the oxidized copper deposits are developed by three open pit mines, one of which is a presently in operation. Copper has been deposited by descending cold solutions which have leached copper from the surrounding quartz monzonite and deposited within the crushed fault zone. Local high grade 'bunches' of ore occur along narrow limonite veins, remnants of primary sulfide veins which have been enriched by the descending cold solutions.

Uranium Occurrences In The Pacific Northwest, Charles Van Alstine

Bachelors Theses and Reports, 1928 - 1970

Uranium prospecting and production in the United States have been largely concentrated in the southwestern states, especially the plateau region of Utah, Colorado, Arizona and New Mexico. However, even with meager prospecting, numerous occurrences of uranium materials have been found in the Pacific northwest. These occurrences are in rooks ranging in age from pre-Cambrian Belt series to Tertiary volcanics and lake beds.

Evaluation Of Sprinkler Systems In Northern Utah, Murray J. Gavel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sprinkling as a method of irrigation has been expanding rapidly in the United States, with acreages irrigated by this method increasing every year. One of the major reasons for the expansion is the great improvements that have been made in sprinkler irrigation equipment. Light weight aluminum pipe, with quick couplers, improved pump and motor efficiencies have all made sprinkler irrigation more desirable. High efficiency of water application, labor requirements, and favorable plant response have also favored the expansion.

Another reason for the increase in sprinkler irrigation is that new lands being brought under irrigation are often not adaptable to surface …

A Comparison Of Over-Snow Vehicles Produced At Utah State Agricultural College, Ross W. Eskelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Travel over snow by vehicle in Arctic and mountainous terrain is one of the most difficult problems of our Armed Forces and other public and private agencies. agencies whose services demand over-snow travel find little or no adequate means of transport. Those vehicles which are available, are either economically infeasible in construction and operating costs, or have serious operational limitations.

Isobaric Heat Capacity Of Nitric Oxide Over A Wide Range Of Temperature And Pressure, Leonard Leonard Salzarulo

Theses

The effect of pressure and temperature on the isobaric heat capacity and the heat capacity at constant volume for nitric oxide relative to the ideal gas state is presented. Results are reported for pressures ranging from 0 to 6000 PSIA. and for temperatures ranging from 300 to 1800°R.

Based on the Benedict-Webb-Rubin equation of state, an equation was derived for the deviation of isobaric heat capacity from the ideal gas state. Graphs and tables relating the isobaric heat capacity and the deviation of heat capacity at constant volume to pressure and temperature for nitric oxide are included.

The results show …

“Signal Corps Intelligence Agency Activities” On Page 18 In The “Quadrennial Report Of The Chief Signal Officer, Us Army, May 1951-April 1955.”, Office Of The Chief Signal Officer, Department Of The Army, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a brief organizational history of a small special-purpose intelligence agency focused on signal equipment used by foreign armies and on the organization and activities of analogous organizations to the US Army Signal Corps in foreign armies. In addition, the Signal Corps Intelligence Agency had been tasked with producing intelligence concerning the Soviet-Bloc civilian power and communications networks.

In the 1950s, the Chief Signal Officer was the head of the US Army Signal Corps which was one of the US Army Technical Services. The Technical Services were bureaus which supplied the army with weapons and equipment, organized and trained …

Performance Of Kentucky (Natural Sandstone) Rock Asphalt, James H. Havens, Ellis G. Williams

Kentucky Transportation Center Research Report

Since about 1948, the performance of natural rock asphalt, used extensively in Kentucky and Indiana, has been plagued by a unique type of scaling in the wheel tracks of each traffic lane. This scaling has been typically an eighth to a quarter of an inch thick and has left the pavements rough and unsightly. In some cases, this phenomen has occurred several times in the same place and has caused much deeper rutting. The general condition is illustrated in a series of photographs attached hereto.

Us Army Quartermaster Intelligence Agency, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

Historical Data Cards were used to record the organizational history of units within the Army. This card was provided to Robert Bolin by the US Army Institute of Heraldry in 1985.

The Quartermaster Intelligence Agency (QIA) was established on 1 March 1955. QIA was a special-purpose military unit assigned to the Quartermaster General. The Quartermaster General was the general in charge of the Quartermaster Corps (QMC). The functions of the QIA were described as “… collects, produces, evaluates, analyzes, interprets, maintains, and disseminates foreign intelliency [sic] necessary to fulfill the missions and functions of the QMC and to meet requirements …

A Variational Approach To The Calculation Of Electron Trajectories, Edmund G. Franzak

Electrical and Computer Engineering ETDs

It is the object of the present work to derive, develop, and illustrate a method for the calculation of electron trajectories based on variational techniques and employing scalar and vector potential functions instead of the customary intensity functions. The methods of the calculus of variations furnish an extremely basic approach to the problem while lending an undeniable air of rigor and mathematical elegance.

Solution of the problem will be accomplished by first setting forth a mathematical structure upon which the work will be based, next outlining the physical principles governing the problem and finally applying the mathematical theory and physical …

Evaluation Of Benedict's Equation For Calculation Of Critical Pressures Of Hydrocarbon Mixtures, Thomas William Owens

Theses

An introduction to the problem of critical pressure calculations of mixtures is presented, followed by a brief history of prior work in this field. Mentioned in the history are the correlations of Watson and Nelson, Smith and Watson, Mayfield, Kuratta and Katz, Benedict, and Edmister. Another section contains a series of tables showing critical pressure calculated by Benedict's equation as contrasted to other data appearing in the literature. An evaluation of the equation is then made from the comparisons.

Included are curves of the values shown in the tables end a series of curves depicting the deviation of these values …

Leaching, Purification And Precipitation Of Glen Scheelite Concentrates, Harold L. Coolidge

Bachelors Theses and Reports, 1928 - 1970

The leaching, purification and precipitation of the Glen scheelite concentrates were performed to acquaint the student with the equipment and processes involved. The concentrates were obtained through the courtesy of the Minerals Engineering Company. Leaching was carried out in the high-pressure autoclave; whereas the purification and precipitation were carried out in laboratory beakers.

The Properties Of Cold Rolled - Stress Relief Annealed 70-30 Cartridge Brass, Robert F. Hartmann

Professional Degree Theses

"Because of the possible commercial application of the proposed treatment of 70-30 brass, this work was undertaken. In addition, the data resulting from this work will result in a better understanding of the treatment of brass.

The objectives of this work were as follows:

1. Determine if higher strength and better spring properties can be realized from a process for commercial 70-30 cartridge brass wherein the regular recrystallizing anneals between rolling reductions are replaced by stress relief anneals.
2. Determine if it is possible, using the above process, to produce essentially fully recrystallized metal with an average grain size below that usually …

Naval Shipyard Workload Distribution, Leonard Charles Wolff

Professional Degree Theses

"In developing the subject of Naval Shipyard workload distribution emphasis will be given to the functions performed by the Workload Planning Branch of the Bureau of Ships, Navy Department, Washington, D. C.

If the naval ship repair and conversion workload for the next few years was firm, and if the workload remained constant, and if sufficient funds were available for the work, and if plans, materials and equipment were available, and if the employment level to accomplish the work assigned to the naval shipyards remained constant, the Bureau of Ships' problem of scheduling work would be minimized. The only problem …

Design Of A Subsonic Wind Tunnel Electrical System, William A. Wundrack

Professional Degree Theses

"The purpose of this thesis is to present information and data used in the planning and construction of an electrical distribution system and main drive system for a wind tunnel designed for Chance Vought Aircraft Company of Dallas, Texas, by Sverdrup & Parcel, Incorporated, Consulting Engineers of St. Louis. Preliminary negotiations were started with Chance Vought Aircraft Company in March 1953, and the wind tunnel calibrations were started in October 1954. Between those dates all design, installation drawings, and construction were completed.

The data used in preparing this thesis were taken from daily records, records of conferences, personal records, correspondence …

Aspects Of Quality Control In Foreign Manufacturing Operations, Erich Rolaff

Professional Degree Theses

"The present thesis is being written to illustrate some aspects of quality control in foreign manufacturing operations; that is, foreign to the United States. It is obvious that the conditions and probable variations from U. S. practice in any manufacturing industry will vary tremendously according to the industry under review. In the present case we shall be dealing with manufacturing operations involving the production of so-called "dry cells" and "dry batteries", and to a somewhat lesser degree with the production of projector arc carbons for use in motion picture theater projection. It will be, therefore, helpful if a brief history …

The Experimental Fabrication Of Titanium Magazines For 3 Inch 50 Caliber Twin And Single Gun Mounts, John Marshall Thorp

Professional Degree Theses

"The element titanium was discovered in 1790 by the Reverend William Gregor an Englishman from Cornwall England. Titanium is ninth in abundance or o.62 percent of the total of the elements making up the lithosphere. It is exceeded in amount only by oxygen, silicon, aluminum, iron, magnesium, calcium, sodium and potassium. Titanium is a constituent of practically all crystalline rocks and of sediments derived from them. Its chief mineralogical occurrence is as oxides in such minerals as ilmenite and rutile, which are the chief ores of titanium metal….

The titanium metal used in the project discussed in this thesis was …

Test 539: International 300 Utility, 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 544: Oliver Super 66 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 557: Oliver Super 99, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Further Studies Of Vapor-Liquid Equilibria Of Methanol-Ethylene Glycol-Water, Herbert Benjamin Sachs

Masters Theses

"The freezing points of the ternary system methanol-glycol-water have been investigated by Conrad, Hill and Ballman. The vapor-liquid equilibria of the same system was studied by Sjoberg. These investigations were carried out to determine the properties of the system relative to its possible use as an antifreeze mixture.

Since Sjoberg's work in 1948, the improved Othmer equilibrium still has been introduced for vapor-liquid experimental determinations. It is therefore the purpose of the present investigation to evaluate the use of this still, compare results with those obtained by Sjoberg, and analyze ternary mixtures for the entire range of glycol concentrations.

The …

38th Annual Meeting, 1954. Program, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

38th Annual Meeting, 1954. Secretary's Report, Lowell F. Bailey

Journal of the Arkansas Academy of Science

No abstract provided.

Measurement Of Irrigation Water, Eldon M. Stock

Reports

Foreword: Although irrigation has been practiced in Utah for more than one hundred years, irrigation water still is being distributed to farmers with little or not thought about its measurement. A farmer would not think of buying or selling other farm commodities, such as hay, grain, beef cattle, or dairy products, without weighing or accurately measuring them, but at the same time he is often content to accept and pay for the irrigation water received with little or no knowledge as to the actual amount received, or whether or not he is receiving the amount he is entitled to. Measurement …