Digital Commons Network^™

Investigation Of The Fundamental Properties Of Rubber-Asphalt Mixtures, Yali Cevat Hasan

Masters Theses

"The writer of this thesis believes that the most important thing next to the original construction cost of a road, is the maintenance cost. It is apparent that the maintenance cost for any given road is directly proportional to the percentage of worn out sections in that road. It is believed that climatic conditions are the very first cause of road failures and that traffic on the road often has a secondary degree of importance in the causing of road surface failures….

It is obvious that extreme heat as well as extreme cold will ruin a road. A heavy traffic …

Study Of Relay Behaviour Under System Oscillations And Out Of Step Conditions, Emil D. Grigoriadis

Masters Theses

"The recent developments in harnessing electrical power have opened a new field in the improvement and betterment of the existing types of relays and the development of new types. Thus about 1930 the manufacturers introduced the high speed circuit breaker with operating times of the order of 8 cycles and the engineers awoke to the possibilities of high speed or one-cycle relays.

Many developments took place since that time which gave us the improved forms of Instantaneous Overcurrent Protective schemes, the Distance Relay Protection, the Carrier Current Protection and many others. Later, because of the war time problems of increased …

A Method Of Mining The Kumtepe Lignite Deposit Of Turkey, Hilmi Dokuzoglu

Masters Theses

"The Agacle lignite deposit, as a potential source of fuel, near Istanbul, Turkey has been used in this study to apply the principles of strip mining operations. The details of the deposit upon which this thesis is predicated will be presented later in this paper.

The fuel requirement of the city of Istanbul with a population of nearly a million is considerably greater then can easily be met. Some of the fuel needs are accommodated by electrical energy by producer gas, by bituminous coal brought from Zonguldak (about 200 miles from the city), by charcoal, and by fuel wood. During …

The Underground Electrocarbonization And Gasification Of Mineral Fuels, Erich Sarapuu

Doctoral Dissertations

"The development of underground gasification methods for recovering mineral fuels is comparatively recent and several methods have been evolved for treating the various source materials. The problem of recovering solid and liquid fuels by underground gasification in gaseous form was primarily approached by means of opening underground entries which created the required fire-drift for starting the gasification in place.

Increasing knowledge of the whole problem of gasification in situ led to the evolution of new improvements in the underground gasification technique and, in the course of progressive research the preparations required for starting the gasification were accomplished from the surface. …

An Experimental Evaluation Of Explosives In Blasting Limestone And Granite, Harve Preston Nelson

Doctoral Dissertations

"The purpose of this study was the evaluation of military and commercial explosives. A standardized index of effectiveness was used as the basis of comparison.

Testing was conducted at the Experimental Mine of Missouri School of Mines and Metallurgy at Rolla, Missouri, and at Graniteville, Missouri. At the school mine, 16 drift rounds, 8 slab rounds and 70 quarry tests were made in the dolomitic limestone. This rock, known locally as the Quarry Ledge of the Jefferson City formation, is of Ordovician Age"--Abstract, page ii.

The Relationship Of Regional Structural Geology To The Ore Deposits In The Southeastern Missouri Mining District, Jack Alexander James

Doctoral Dissertations

"The lead deposits in the Southeastern Missouri mining district have been examined by numerous geologists and mining engineers since the original discovery about 1720. A list of the men who have reported on them includes some of the outstanding students of ore deposits.

The regional geology in the mining district either was unknown or only vaguely known when most of the early examinations were made, and the discussions of the structural geology are restricted in scope owing to the lack of detailed information. The reports based on these examinations, although excellent for their time, are incomplete in view of the …

A Survey Of Acidity In Drainage Waters And The Condition Of Highway Drainage Installations, James H. Havens, James L. Young Jr., Harvey J. Field Jr.

Kentucky Transportation Center Research Report

Every creek gulley and raw interrupted by roadway fills and embankments must be provided with an adequate drainage conduit under the pavement. If the natural drainage is impeded or the conduit is not functioning properly, impounded water over-runs the pavement, seeps through the fill, and eventually disintegrates the section or reduces its stability. The topography in Kentucky, through varied sectionally, requires on the average, one cross-drain for every thousand feet of roadway. Obviously, these drainage structures are of considerable economic importance in the highway program, not only from the standpoint of initial construction costs, but also from consideration of the …

Measurement Of Surface Irregularities And Riding Qualities Of High Type Bituminous Pavements, Harvey J. Field Jr.

Kentucky Transportation Center Research Report

Studies of riding qualities as determined by irregularities in high type bituminous pavements were first treated in Report No. 1 on this subject in December, 1949. At that time interest was centered as much on specifications as on the causes, the thought being that specifications did not provide satisfactory tolerances to produce surfaces with good riding qualities. Specifically, tolerances over relatively short distances longitudinally were though to be at fault.

It was found early in that work that variations in the lateral direction were causing considerable roughness but since longitudinal variations were being studied primarily, no actual measurements were made …

Test 454: Dodge Power Wagon T137, 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 …

Four Papers On The Performance Of Thin Walled Steel Structures, George Winter, Warner Lansing, R. B. Mccalley Jr.

CCFSS Library (1939 - present)

“The investigations reported in the four papers were carried out under the auspices of the Engineering Experiment Station of Cornell University, Dean S. C. Hollister, Director, and in the School of Civil Engineering, Professor W. L. Malcolm, deceased, and Professor N. A. Christensen, Directors.

They are part of, or related to, an extensive investigation of thin-walled steel structures sponsored jointly by the American Iron and Steel Institute and Cornell University, of which Professor George Winter, Head, Department of Structural Engineering, is in active charge. On the part of the Steel Institute the work is directed by the technical subcommittee of …

Special Text, St 55-30-1, Transportation Intelligence, November 1950, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a textbook used at the Army Transportation School run by the Transportation Corps. In the 1950s, military schools related to one of the Army Technical Services were run by that service.

The modern US Army vision of the technical intelligence developed during World War II. Shortly before World War II, Army Technical Services had been instructed to set up intelligence sections in the offices of their chiefs. The technical services were bureaus which supplied weapons, equipment, and services to the Army, managed the careers of officers in a particular branch, trained specialists, and organized and trained special purpose …

A Hospital Plan For The Hillsborough-Pinellas Area Florida, James A. Hamilton And Associates

City and Regional Planning -- Florida

A Study of the Area's Hospital Needs and a Proposed Program of Development October, 1950

Aircraft In Agriculture, N. E. Shafer, J. D. Furrer, J. W. Lomax

Nebraska Agricultural Experiment Station: Historical Circulars

Airplanes were first used in agriculture shortly after the close of World War I. They proved valuable for locating mosquito breeding areas, for forest fire patrol work, as an aid in locating outlaw cotton fields in the campaign against pink bollworm, and for surveying damage caused in large forested areas by the spruce budworm.

A Guide To The Collection Of Technical Intelligence, Part I, July 1950, Department Of The Army, Assistant Chief Of Staff, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a detailed, well-illustrated guide showing the range of weapons and equipment army technical intelligence was interested in, including:

• Armored vehicles
• Artillery
• Infantry small arms
• Mortars, antitank weapons, and grenades
• Mines, booby traps, and demolitions
• Ammunition
• Artillery rockets and rocket launchers

Notable lapses in this booklet are:

(a) Lack of guidance for using the booklet and

(b) The lack of mention of:

• Radio and electronic equipment
• Chemical, biological, and radiological warfare equipment
• Bridge and stream-crossing equipment
• Construction equipment
• Trucks and other transportation equipment
• Quartermaster type equipment
• Specialized equipment for Arctic warfare.

When this booklet was published, the technical intelligence …

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.

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.

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.

A Mineral Dressing Study Of The Benefication Of Philipsburg Manganese Carbonate Ore, Frank M. Antonioli

Bachelors Theses and Reports, 1928 - 1970

The beneficiation of rhodochrosite ore to the extent that it is suitable for nodulizing and subsequent use in the steel industry is intriguing. Such ores from certain mines is relatively easy to beneficiate, but the rhodo-chrosite ore from several deposits of the Philipsburg district has never been successfully up-graded by any of the several known beneficiating methods.

Physiographic Surfaces And Weathering Near Butte, Gordon B. Brox

Bachelors Theses and Reports, 1928 - 1970

Three cycles of erosion have modified the Boulder batholith. The earliest cycle produced a peneplaination that has been largely obliterated by a partially completed intermediate cycle, and the recent cycle now in progress.

An Annotated Handbook Of Free Teaching Materials For Industrial Arts Instructors, Donald L. Ferguson

Master's Theses or Doctor of Nursing Practice

This research comprising a handbook of free teaching materials for the industrial arts instructor is prepared as an aid to the classroom and shop teacher. There are many teaching aids now available for industrial arts teachers. Comparatively few industrial arts teachers know where to obtain these materials. The primary purpose of this research is to present in form "An Annotated Handbook of Teaching Materials for These Instructors. " This handbook includes the address, name, source, and description of materials available at no cost.

Isothermal Transformation Of S.A.E. 6150 Steel By The Magnetic Permability Method, Richard R. Douglas

Bachelors Theses and Reports, 1928 - 1970

Since the purpose of this thesis is primarily to present an improved mechanical method for plotting isothermal transformations by means of differential mag­netic permeability between untransformed austenite and its ultimate transformation product.

A Preliminary Study Of The Benefication Of Montana Corundum, John L. Brown

Bachelors Theses and Reports, 1928 - 1970

The objective of this thesis was to affect an effic­ient and economical recovery of corundum. The corundum oc­curs as a crude ore admixed with quartz and other diluents. Yet, this material is a potential Montana resource of a val­uable non-metallic mineral. In view of the strategic import­ance and the relatively small production of this mineral in the United States, it seems advisable at this time in world affairs to investigate every possible source of this mineral.

The Lilly Mine Of Powell County, Montana, Wilbur Aikin

Bachelors Theses and Reports, 1928 - 1970

For many years the Elliston District, of Powell County has been a minor producer of gold, lead, zinc, and silver. Although never among the largest producing districts of the state, it has with the exception of the war years supplied a notable tonnage of ore to the neighboring mills ever since the first placer and lode claims were located there during the late eighteen hundreds.

Consumptive Use Of Water Studies In The Ashley And Ferron Creek Areas Of Utah, Elden E. Fisher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The inadequacy of water and power supplies in Utah for agriculture, for industry, for domestic and community consumption has retarded the State's economic growth. Shortages of water and hydroelectric power are the principle impediments to the full realization of other potentials of Utah, that is, the full use of its arable lands, the wide and diversified use of its industrial raw materials, and the unrestricted development of its communities. The problem of securing additional sources of water and power has resolved itself into one of major concern. The objective of this study was to determine unit values of consumptive use …

Drainage By Pumping In The Lewiston Area, Utah, Paul J. Pehrson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In irrigated areas it often becomes necessary to provide means by which the excess water may be removed. After a period of time if these drainage provisions are not made, it may become necessary, because of the saline soils or water logged condition that may develop, to abandon the land for agricultural purposes.

The increases of irrigation on the higher lands in Utah has resulted in an increased need for drainage on much of the lower land in the valleys. This increased need for drainage has long been recognized and in 1947 it influenced the Utah Agricultural Experiment Station, in …

Effect Of Surface Irregularities On The Riding Qualities Of High Type Pavements, Harvey J. Field Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.

Economics In Erection Of Long Span Continuous Bridges, Harry A. Balke

Kentucky's Annual Forum on Transportation

No abstract provided.

Toll Facilities In The Highway Program, Craig P. Hazelet

Kentucky's Annual Forum on Transportation

No abstract provided.

Low Cost Bridges For Secondary Roads, G. Wood Smith

Kentucky's Annual Forum on Transportation

No abstract provided.

Interpretation Of Plans And Specifications, J. A. Bitterman, M. F. Johnson, A. O. Neiser, C. B. Owens, W. S. Todd, G. L. Logan

Kentucky's Annual Forum on Transportation

No abstract provided.