Engineering Commons^™

A Flood Frequency Study For Small Watersheds In Missouri, Ronald Anthony Rusch

Masters Theses

"The quantity and quality of streamflow data available on small watersheds in Missouri has improved in the last ten years. However, it will be years before there is sufficient data on both the large and small watersheds to enable investigators to conduct extensive studies in the state. This study of 70 small watersheds within the state of Missouri presents a technique to estimate the discharge from watershed of 25 square miles or less...Results from this study may be used in the design of small hydraulic structures such as culverts, bridges, and dams for small reservoirs"--Abstract, page ii.

New Developments In Joint Sealing Practice For Longer Spans, Stewart C. Watson

Kentucky's Annual Forum on Transportation

No abstract provided.

Reliability Considerations For Communication Satellites, Frank Polizzi

Theses

A detailed program covering all phases of reliability for a communication satellite was presented. In long mission programs such as this one, reliability is the prime consideration in assuring a successful accomplishment of the stringent goals set forth. Reliability principles and methods were incorporated in delineating each major task in the program. These principles and methods not only aided the reliability personnel in performing their duties better, but also assisted the design group, manufacturing personnel, and the testing and evaluation group in performing their jobs efficiently by being aware and knowledgeable of reliability engineering.

Various reliability disciplines were imposed, as …

Trace Element Content Of Magnetites And Hematites, Southeast Missouri Iron Metallogenic Province, Usa, Geza Kisvarsany, Paul Dean Proctor

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Six major and numerous smaller Precambrian iron deposits of mag-matic origin occur in the volcanic rocks of the Southeast Missouri Iron Metallogenic Province in an area approximately 70 miles long and 40 miles wide. The Precambrian igneous complex is composed of mainly high silica, with some intermediate, volcanic rocks intruded by granitic rocks and some diorites and gabbros. Biotite schists occur locally. Some of the volcanic and intrusive rocks are characterized by an unusual abundance of alkali metals. Local enrichments in fluorite, calcite, and iron oxides are present. The shapes of the iron deposits range from massive tabular to irregular. …

A Comparison Of Friction And Drum Hoisting Systems On An Energy-Input Basis, Hemendra Nath Kalia

Masters Theses

"The purpose of this thesis is to provide a suitable basis for comparing the relative advantages of the friction and drum hoists under various conditions of operation.

Such comparisons are mainly and necessarily based upon physical characteristics of the mechanisms for lack of appropriate economic data. It is believed, however, that this inadequacy may be alleviated to some extent by substituting comparative theoretical energy requirements of' the two hoisting systems under identical duty conditions over a practical range of mining situations involving various depths and daily productions.

This has been accomplished by adapting a computer to standard mine-hoist design techniques …

A Study Of Stress Distribution And Measurement Of Axial Strain Around A Pilot Hole During Overboring, Varakantham Sreedhar Reddy

Masters Theses

"Stress distribution around a pilot hole during overcoring was investigated. A study of axial strain on the borehole surface was undertaken. Two-dimensional epoxy resin models were prepared and stress frozen in a centrifuge. The stress-frozen models were examined under a direct-viewing polariscope. The magnitude of axial strain and the effect of strain relaxation on the pilot hole were measured on blocks of brittle materials. Factors contributing to discing of core during the overcoring operation were investigated and a mechanism of failure postulated. The loading conditions simulating in situ, core and bit pressures were applied individually to the brittle models and …

Laboratory And Field Evaluation Of The Nuclear Moisture And Density Meters, T. G. Williamson, Matthew W. Witczak

JTRP Technical Reports

No abstract provided.

Use Of Spent Sulphite Liquor For Stabilization Of Fractured Rock And Sealing Off Water Bearing Formations, Laxman Singh Sunda

Masters Theses

"The paper industry, in its process of manufacturing pulp from wood, produces large quantities of a substance called lignin, lignin sulphite, or lignosulphonate. This material has been disposed of as a waste product; however, it does have many potential uses. In this investigation, lignosulfonates were used as agents for bonding rock sections together and, as the chief component of gels, for filling the pores of artificial rock cores. The purposes of these tests were to find how this substance could be used in the mining industry, for stabilizing fractured ground around mine openings and for sealing off water influx into …

A Study Of The Work Functions Of Nigerian Industrial Technicians, Olugbenro A. Ajayi

Masters Theses

The Problem and Its Background

Introduction

A curriculum can be developed in several ways. The simplest method is to use the curriculum of another institution without modification. The hazard of such an approach lies in the possibility that the curriculum may not be a good one or, even if satisfactory for the original institution, may not fit into the conditions of the setting where it is to be used. For example, entrance requirements for institutions vary from country to country and from one institution to another.

Another method is to study a number of curriculums and develop a composite curriculum …

Investigations Of The Feasibility Of Transporting Ore In Open-Flumes., Kirtikant R. Sheth

Masters Theses

"Considerable effort has been expended and many data are published on developing the technologies of pipeline transportation and hydraulic hoisting. However, comparatively little information is available on the techniques of hydraulic mining, and nearly none ii is reported on conveying slurries in open flumes. For this reason, the author chose to investigate some of the parameters that influence open-flume transport.

It was found that Durand has assembled the findings of several investigators into a simple mathematical expression which is accepted as a standard for designing slurry pipelines. ·Further investigation by the writer revealed that Durand's formula, with only minor modification, …

Electrolytic Corrosion Of Reinforcing Steel In Concrete., Lawrence D. Green

Masters Theses

"Deterioration of bridge decks has increased the interest in the corrosion of steel in concrete. A comprehensive review of literature on the subject of electrolytic corrosion of steel in concrete is presented in this thesis.

Development of theory from the literature leads to the following statements. There are two causes for electrolytic corrosion of steel in concrete, stray currents from direct current power sources and the formation of macro-cells within the structure. The corrosion caused by the macro-cells appears to be the more important of the two. Anodic areas exhibit corrosion of the steel and cracking of the concrete.

Many …

Some Effects Of Impact Of Low Magnitude On The Deformation Of Prestressed Gypsum Cylinders., Arthur Joe Bush

Masters Theses

"A review of the literature pertaining to the subject is presented. Many series or impacts were made on specimens of gypsum which were already under a static load. A special. repetitive impact machine was used to allow a variety or weights to fall from predetermined heights. Tests were conducted inside a roan constructed especially for these tests. Heat gained or lost through the ceiling and walls was kept at a minilI1um by a lining or aluminum-covered, fiber glass insulation. Temperature and humidity conditions were kept nearly constant by a combination air-conditioner and dehumidifier.

Repetitive loading of the prestressed specimen was …

Non-Ferrous Metal Mining And Smelting In Australia, H. R. Hanley

Missouri School of Mines and Metallurgy Bulletins

No abstract provided.

Aggregate Degradation In Bituminous Mixtures: Technical Paper, Fred Moavenzadeh, William Harner Goetz

JTRP Technical Reports

No abstract provided.

The Application Of Nuclear Techniques To The Measurement Of Moisture And Density Of Highway Construction Materials, Robert C. Deen, J. D. Shackelford

Kentucky Transportation Center Research Report

In recent years much attention has been directed toward the application of neutron and gamma ray techniques to soil moisture and density measurements. This application of radiological measurements of these characteristics of materials of highway construction, of course, is of great interest to the highway industry since the performance of the total pavement system is highly dependent upon the condition of the embankment, subgrade, and base components of this system. An important measure of the state of condition of unconsolidated earth materials is their unit weights and moisture contents. The highway engineer undoubtedly would welcome any method or technique which …

Nuclear Moisture-Density Measurements In Construction Control : Technical Paper, Alfonso Burgers, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.

Mechanics Of The Voussoir Arch As Applied To Block Caving, Christopher Haycocks

Masters Theses

"The theories of ground failure in massive rock with special reference to the problem of the mechanics of block caving were studied and evaluated.

The mechanics of arch or dome formation underground were studied quantitatively using the Voussoir arch theory. The effect of shear stress on the arch stability was considered and found to affect the system only when the arch height increased beyond certain limits.

A theory of the mechanism of ground failure in an undercut block using the dome theory was advanced. Photo- elastic model studies were used to support the conclusions reached"--Abstract, page i.

Correlation Of Dust-Count Results By Zeiss Konimeter And Midget Impinger, Chandmal Jain

Masters Theses

"In this modern age, the scientific and technological developments have advanced mechanized mining to the status wherein the attendant dust problems have reached very serious hazard proportions. The significant roles, which have been perfected for the Zeiss konimeter and the midget impinger, in evaluating dust concentrations and thereby revealing possible improvements in making the atmospheric conditions safer, cannot be over emphasized.

While introducing the subject of this paper in the first chapter, the author has presented a historical resume, wherein he pointed out that performances of these instruments have not been correlated in the past. However, the work reported on …

Engineer Intelligence Guide 33, Preparation Of Terrain Diagrams, June 1960, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

In 1960, geographic intelligence in the US Armed Forces was decentralized. The Intelligence and Mapping Division of the US Army Corps of Engineers was primarily responsible for creation of military intelligence concerning the surface of the earth excluding the oceans and seas for the armed forces of the United States. Engineer intelligence guides were issued to provide guidance concerning collection, processing, production, and dissemination of geographic intelligence to elements of the Corps of Engineers.

This engineer intelligence guide explains the differences between maps and terrain diagrams and provides examples using actual maps and terrain diagrams. The maps and terrain diagrams …

Autoclave Leaching Of Montana Chromite, Leonard S. Greely

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation was to determine the feasibility of caustic autoclaving of Montana chromite in order to recover the chromium in a relatively pure solution of sodium chromate.

Segregation Method As Possible Process To Beneficiate Oxidized Lead Ores, Jose Molfino Tomasio

Masters Theses

"In this investigation it has been demonstrated that the Segregation Process has merit for treating oxidized lead ores.

The process comprises heating the crushed ore with salt and coal at about 750° C. to produce metallic lead attached to the carbon particles, which then is recovered by conventional flotation methods.

The quantities of sodium chloride and coal required for the best segregation of lead obtained in this work was 1.0 percent of coal and 1.0 percent of salt by weight.

Good segregation was obtained by using salt and coal as fine as 65 or 48 mesh. Segregation varied with the …

Space Focus, Space Enterprises, Inc.

Space Journal

No abstract provided.

Information Free/Men Of Science, Space Enterprises, Inc.

Space Journal

No abstract provided.

An Investigation Of The Effectiveness Of Certain Organic Compounds In The Flotation Of Manganese Oxide Minerals, Johannes P. Dreyer

Bachelors Theses and Reports, 1928 - 1970

This thesis has to do with the selective flotation of the manganese oxide minerals in an ore from Charco Redondo Mine, Oriente Province, Cuba. Since a sound knowledge of the nature of the emulsion-induced flotation process of these minerals does not exist, experimental research constitutes the most valuable resource for determining the extent to which different reagents influence the process. Moreover, a correlation of experimental results with the chemical and physical properties of the minerals and reagents can lead to the improvement of existing theories regarding the mechanism of a process.

Magma 1959, Associated Students Of The Montana State School Of Mines.

Magma 1948-1997

Any year book has as its prime purpose the depiction of a school year in a manner that will recall the maximum of memories in future years. The Magma this year utilizes memories as a theme, but places a slight accent on those of the graduating seniors.

Space Books, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.

"Construction Of An Interstate Highway Project", John Avent

Kentucky's Annual Forum on Transportation

No abstract provided.

Some Properties Of Chrome-Magnesite Mixtures And Calcium Aluminate Cement-Magnesite Mixtures, Edward Charles Duderstadt

Masters Theses

"The knowledge of the physical and chemical properties of refractories is of great importance in determining their usefulness and application. The thermal expansion of refractories is of particular importance in that it affects the thermal stability of the product. A high coefficient of thermal expansion leads to greater spalling and destruction of the bricks in use. It is, therefore, desirable to develop compositions having low coefficients of thermal expansion. This investigation was undertaken (1) to determine some of the properties of chromite-magnesite refractory mixtures in an attempt to determine the optimum composition of these mixtures, the specific properties including thermal …

Implications Of Soviet Progress In Science And Engineering, J G. Mayton

Space Journal

No abstract provided.

Methods To Improve The Metallurgy Of Bolivian Tin Ores, Oscar Davila-Michel

Masters Theses

"Tin is a rare element; among the base metals it is one of the rarest. Although it was one of the first metals used by man and has been used since prehistoric time, the ore-dressing and metallurgical methods of tin are inefficient and very wasteful.

The only tin deposits of importance in the Americas are located in Bolivia, South America, and it is in Bolivia that the problems of tin metallurgy are greatest. More than 50% of the tin that is mined in Bolivia is lost in the tailing dumps of the beneficiation plants. In a country where the export …