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Articles 5251 - 5280 of 5323

Full-Text Articles in Engineering

The Effect Of Base Course Gradation On The Results Of Laboratory Pumping Tests, W. P. Chamberlin Jan 1957

The Effect Of Base Course Gradation On The Results Of Laboratory Pumping Tests, W. P. Chamberlin

JTRP Technical Reports

No abstract provided.


Prospect Drilling, George Allen Mealey May 1956

Prospect Drilling, George Allen Mealey

Bachelors Theses and Reports, 1928 - 1970

This report covers four types of prospect drilling: churn drilling, diamond drilling, percussion drilling and calyx drilling. No other types of prospect drilling are discussed except these four types because any other method are not extensively used.


0007: Samuel Roy Jenkins Diaries, 1887-1941, Marshall University Special Collections Jan 1955

0007: Samuel Roy Jenkins Diaries, 1887-1941, Marshall University Special Collections

Guides to Manuscript Collections

This collection consists primarily of the diaries of Samuel Roy Jenkins, written from 1887 until 1941. The early diaries, written between 1887 and 1898, deal with his life as a student at Grafton High School and West Virginia University, and later as a civil engineer in Grafton, West Virginia. The middle group of diaries cover the years from 1906 until 1925; Mr. Jenkins' floral business in Grafton and his increasing financial difficulties are the subjects of many of these entries. In the last group of diaries, written between 1930 and 1941, the entries discuss Mr. Jenkins' return to the engineering …


Shaft Sinking Investigation, Harold Foss May 1954

Shaft Sinking Investigation, Harold Foss

Bachelors Theses and Reports, 1928 - 1970

This paper, investigating shaft mucking, has been prepared as a partial requirement for the degree of Bachelor of Science in Mining Engineering. In the following material I have attempted to collect and compile all available information on mechanical shaft mucking, to compare and contrast the different methods and to trace their development through to the latest innovation. This development of the investigation is purposely being used to lead to a new method which will be discussed hypothetically as a conclusion to the paper.


Tunnel Rehabilitation, Jay C. Dotson Jan 1954

Tunnel Rehabilitation, Jay C. Dotson

Masters Theses

"This paper is an outgrowth of research conducted at Missouri School of Mines and Metallurgy over a two year period. The purpose of the study is to assemble into one volume information that is pertinent to the rehabilitation of tunnels. Notwithstanding the voluminous size of the paper, much descriptive material necessarily has been omitted because of the far-reaching scope of tunneling practices and of the specialized fields therein. An extensive bibliography has been prepared to supplement the material that has been selected for presentation. Through consultation with tunnel men of all ranks, observations in the field, and an intensive search …


Investigation Of Soil Bricks As A Building Material, Ahmet Ilter Jan 1954

Investigation Of Soil Bricks As A Building Material, Ahmet Ilter

Masters Theses

"The need of a cheap construction material for small village farm construction in Turkey makes soil-cement a most desirable material. What is more, as far as the author knows, soil-cement has not found any application in farm house construction in Turkey as yet. So the author, being acquainted with his native country's house construction problem, and seeing the suitable application soil-cement have on such construction, came to the decision that he should investigate this problem thoroughly.

The main objective of the tests run in this investigation will be to find the strength of different samples of soil-cement. The stabilizer used …


Metallurgical Pulp Mill Processing For The White Pine Copper Company Project, White Pine, Michigan, Steve Theodorides Jan 1953

Metallurgical Pulp Mill Processing For The White Pine Copper Company Project, White Pine, Michigan, Steve Theodorides

Professional Degree Theses

No abstract provided.


Lectures On Atomic Energy Industrial And Legal Problems, University Of Michigan Law School Jan 1952

Lectures On Atomic Energy Industrial And Legal Problems, University Of Michigan Law School

Summer Institute on International and Comparative Law

Since 1948 the University of Michigan Law School has, as a part of its program of public service, sponsored a series of Summer Institutes, intended to provide a medium for high-level discussions of important problems in areas of public concern. The Institutes held in previous years are as follows:

  • The First Summer Institute, July 15-23, 1948, "Current Problems in International Law"
  • The Second Summer Institute, August 5-21, 1949, "Legal Problems of World Trade"
  • The Third Summer Institute, June 26-July 1, 1950, "The Law and Labor-Management Relations"
  • The Fourth Summer Institute, June 25-28, 1951, "Taxation of Business Enterprise"

The Fifth Summer …


Shaped Charges: Their Mechanism And Applications In Mining, Pranlal Girdharlal Sheth Jan 1952

Shaped Charges: Their Mechanism And Applications In Mining, Pranlal Girdharlal Sheth

Doctoral Dissertations

"A shaped charge, confined or unconfined, is a unit of explosive material with a cavity or hollow at the base. It behaves differently than an ordinary charge, and, when detonated, has been found to produce curious effects of concentrating the force of the explosive on an area opposite the cavity"--Introduction, page 1.


History Of Technical Intelligence, Army General School, Robert Bolin , Depositor Jun 1951

History Of Technical Intelligence, Army General School, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is an excellent description of the history of Army technical intelligence during World War II. It gives good descriptions of technical intelligence in the various theaters of operation and of the lessons learned from each. The experience in the Pacific Theater was highlighted. The use of a Technical Intelligence Company in the Pacific has proven an influential model for the organization of technical intelligence in the field in later wars. The first part of the document is an outline showing how to present the material to the students. The final 8 pages are a summary of the material covered …


Investigation To Improve Recovery Of Copper And Gold From A Refractory Ore, Raymond Franklin Cathcart Jan 1951

Investigation To Improve Recovery Of Copper And Gold From A Refractory Ore, Raymond Franklin Cathcart

Masters Theses

"Results of tests presented in this paper indicate that the Santa Maria del Oro ores might be processed by a method which should yield a gold recovery of 96 to 98 percent and a copper recovery of about 78 percent, both figures subject to an increase with further work and study of the problem.

In the method of processing outlined in Figure IX, the ores, mixed as under present operating procedure, would be crushed to minus 20-mesh and roasted with ten pounds of sodium chloride per ton of feed in a multiple-hearth, down-draft roaster at temperatures varying to a maximum …


A Study Of Some Raw Materials For The Manufacture Of Silica Brick, Charles E. Shulze Jan 1951

A Study Of Some Raw Materials For The Manufacture Of Silica Brick, Charles E. Shulze

Masters Theses

"The ability of silica to carry a load to within a few degrees of its melting point and its tolerance for comparatively high concentrations of iron oxide and lime, have enabled it to maintain its position as the number one steelplant refractory. It is estimated that at least half of the volume of refractories used in the steel plant are silica bricks. Consequently the manufacture of silica refractories forms an industry of considerable importance.

Raw materials suitable for the manufacture of silica brick are widely distributed, but only a small number of deposits are used commercially for one reason or …


Montana Talc; Problems In Physical Properties, E. C. Armstrong Jun 1950

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.


A Preliminary Study Of The Benefication Of Montana Corundum, John L. Brown May 1950

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.


Address [1950], Robert B. Brooks Mar 1950

Address [1950], Robert B. Brooks

Kentucky's Annual Forum on Transportation

No abstract provided.


Relative Productive Value Of Land, Karl Harris, Vaughn E. Hansen Jan 1950

Relative Productive Value Of Land, Karl Harris, Vaughn E. Hansen

Reports

Location, markets, hard surface roads and other transportation facilities, churches, taxes, schools, and utilities are major factors in the monetary value of land, yet these things do not contribute to the land’s productivity. In this bulletin the only factor considered in determining the agricultural value of land is its productive capacity.

The three major factors in the productive value of land are water, climate, and soil.

These three factors are the principal ones in crop production. If any one of them is unfavorable to plant growth, it can inhibit or even prevent plant growth regardless of how favorable the other …


Rockbursts, Christian Maurice Colson Jan 1950

Rockbursts, Christian Maurice Colson

Masters Theses

"This paper does not pretend to originality; it is an attempt to bring to light the causes and the mechanism of rockbursts, as exposed in the literature. Furthermore, an endeavor has been made to give a comprehensive picture of the prediction, prevention, and control methods of rockbursts. Briefly, what has been done in the field of rockbursts, and what remains open to investigation is submitted to the reader. The choice of rockbursts as a thesis subject appears to be justified by the geologic interest of the question. Detailed geologic observations, and particularly the recording of all the structural features which …


Effects Of Wave Action Upon The Design Of The Breakwater For Istanbul Harbor, Melih Suat Durusan Jan 1950

Effects Of Wave Action Upon The Design Of The Breakwater For Istanbul Harbor, Melih Suat Durusan

Masters Theses

"The city of Istanbul is situated on the southern entrance of the Bosphorus which separates Asia from Europe; at the same time it is the only strait that leads to the Black Sea. Istanbul is the city that connects Europe-Asia highways and railways. These features show that Istanbul is a very important port. The Golden Horn and the southern end of the Bosphorus constitute a natural harbor which has been in use for many years. Although the natural harbor has served its purpose in the past, the present conditions necessitate the presence of a new harbor...One economical method of improving …


Caustic Leaching Of Montana Chromite, Chester Freshour May 1949

Caustic Leaching Of Montana Chromite, Chester Freshour

Bachelors Theses and Reports, 1928 - 1970

Chromite is the most important ore used for the production of chromium and chromium alloys. At present, the domestic production is insignificant as compared with the amount of chromite consumed in the United States.


Roasting And Leaching Of Montana Chromite, Jerry D. Murphy May 1948

Roasting And Leaching Of Montana Chromite, Jerry D. Murphy

Bachelors Theses and Reports, 1928 - 1970

The United States, although the leading consumer of chromite, depends almost entirely on imports for its supply. Domestic production of chromite is limited, because high-grade imported ore is plentiful and inexpensive in normal times. There are several large deposits of chromite in the United States, representing millions of tons of low grade ore. These deposits form a strategic reserve that must be used in time of national emergency.


Geology Of Montana, Stanley G. Olson May 1948

Geology Of Montana, Stanley G. Olson

Bachelors Theses and Reports, 1928 - 1970

A vast amount of information has been published by many workers on particular features of the geology of the state of Montana, as well as on local geology of many smaller divi­sions. However, a satisfactory summary of the geology in general, which would include all phases of geology as they apply to the greater area of the entire state, has not been published.


A Preliminary Study Of The Benefication Of Montana Kyanite, Donald Paul Mccarthy Apr 1948

A Preliminary Study Of The Benefication Of Montana Kyanite, Donald Paul Mccarthy

Bachelors Theses and Reports, 1928 - 1970

This investigation is a preliminary study of the beneficiation of Montana kyanite, and while preliminary in degree the information gained may serve as a guide for the eventual exploitation of this Montana resource.


Dust Control In Mining Industry And Some Aspects Of Silicosis, Mathuramuthoo Subramanyam Jan 1948

Dust Control In Mining Industry And Some Aspects Of Silicosis, Mathuramuthoo Subramanyam

Masters Theses

"The deleterious effect on human beings of dust in mine air is well-known. It is the duty of engineers, therefore, to take measures to eliminate it. It is now definitely established that of all the various types of dust encountered in mine air, silica dust is the most harmful. This dust, if inhaled over a period of time, causes the disease, silicosis, which in most countries is compensated for as a physical disability. The prevention of alleviation of this scourge is analyzed in three broad aspects: 1. If the mine air is as clean as outside atmospheric air, silicosis will …


High Temperature Coatings., Irvin Henry Lutz Jun 1947

High Temperature Coatings., Irvin Henry Lutz

Electronic Theses and Dissertations

This thesis is a report on coatings exclusive of the porcelain enamels which may be used at temperatures as high as 750*F., and also a description of the properties of the more heat resistant resins of commerce. The method of preparation and testing of the various coatings investigated in this research is given, and the results are tabulated and discussed. Best results were obtained with Dow Corning silicones of the 800 series heavily pigmented with either zinc dust or aluminum bronze, and with glycerol phthalate -- silicone coatings pigmented with aluminum bronze.


History Of Ordnance Technical Intelligence In World War Ii, Part 1: History, Orders & Circulars, And Publicity, Robert Bolin , Depositor Jan 1946

History Of Ordnance Technical Intelligence In World War Ii, Part 1: History, Orders & Circulars, And Publicity, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

During World War II, the Ordnance Department was one of the army technical services. There were a number of technical services including the Chemical Warfare Service, the Army Medical Department, the Corps of Engineers, the Quartermaster Corps, the Signal Corps, and the Transportation Corps. The technical services were bureaus providing weapons, equipment, and services to the Army. They managed the careers of officers in their corresponding branches, and organized special military units. They also ran schools to train individual and military units in their specialties.

During World War II the emphasis of technical intelligence was foreign weapons and equipment. The …


Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal Jun 1945

Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to investigate the occurrence and character of the vermiculite deposits approximately four miles northwest of Pony; Madison County, Montana. The deposits are situated in rolling foothills at the northern end of the Tobacco Root Mountains.


Copper Commando - Vol. 3, No. 11, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jan 1945

Copper Commando - Vol. 3, No. 11, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue… World War II, Seventh Ferrying Group, copper, ammunition, Canadian Rockies, Butte Electricians, International Brotherhood of Electrical Workers, elevator buckets, safety award smoker, U.S. Navy, U.S. Marine Corps


Some Applications Of Statistical Quality Control Methods To The Preparation, Purchase And Calorimetry Of Steam Coal, Arthur P. Bellinghausen Jul 1944

Some Applications Of Statistical Quality Control Methods To The Preparation, Purchase And Calorimetry Of Steam Coal, Arthur P. Bellinghausen

Bachelors’ Theses

This thesis is an attempt to establish the applicability of a statistical method of quality control to several problems involving maintenance of fuel quality standards. Although the technique has found increasingly important applications in mass production industries, its use in analysis of fuel characteristics has been given little, if any, study if current catalogues of the literature are authoritative. Analyses of data drawn from publications of the Bureau of Vines have been used to test the limitations of the method. Original data collected by the author shows statistical control to exist over sufficient samples to assure the soundness of conclusions …


Copper Commando - Vol. 2, No. 21, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jun 1944

Copper Commando - Vol. 2, No. 21, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...World War II, B-25 Mitchell bomber, infantry, Brigadier General William H. Wilbur, midels, copper bomber, Berlin, Montana mine products, smeltermen, tram, Anaconda smelter, war bond drive


Copper Commando - Vol. 2, No. 20, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls May 1944

Copper Commando - Vol. 2, No. 20, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...World War II, Navy report, Africa, Russians, Germans, Japanese, nurse, Hawaii, mine rescue station, Butte, Montana, war films, spectography, Great Falls, electricians, Catholic conference, industrial problems, lessons