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Accident Experience: Iron-Ore Mines, Lake Superior District, 1940-43
Report issued by the U.S. Bureau of Mines discussing the iron-ore mining accident experience in the Lake Superior District. Frequency and severity rates of accidents between 1940 and 1943 are presented. This report includes tables.
Date:
May 1945
Creator:
Cash, Frank E. & Larsen, Reuben D.
Object Type:
Report
System:
The UNT Digital Library
Accident-Severity Rates For Certain Metal Mines
Report issued by the U.S. Bureau of Mines on the severity of accidents in the metal-mine industry. 34 metal-mines documented the number and severity of all accidents over the course if one calendar year. This report includes tables.
Date:
September 1926
Creator:
Adams, William Waugh
Object Type:
Report
System:
The UNT Digital Library
Accounting System and Office-Management Procedure for Medium-Size Metal Mines
Report discussing an accounting system and management of office procedures design for medium-size metal mines, offered by the United States Bureau of Mines, to be more efficient in the mining industry.
Date:
1934
Creator:
Keller, Albert E.
Object Type:
Report
System:
The UNT Digital Library
Acid-Mine-Drainage Problems: Anthracite Region of Pennsylvania
Report from the U.S. Bureau of Mines discussing the anthracite region of Pennsylvania and the efforts to prevent coal-mine drainage into nearby streams. According to the introduction, "The purpose of this report is not to develop a practicable or feasible method or process of treating acid mine water but rather to present available factual and deduced data that may be useful in showing pH range over which the treatment is to take place and the sludge products most likely to be handled" (p. 2).
Date:
1951
Creator:
Ash, S. H. (Simon Harry), b. 1889; Felegy, E. W.; Kennedy, D. O. & Miller, P. S.
Object Type:
Report
System:
The UNT Digital Library
Acid Processes for the Extraction of Alumina
Report presenting the Bureau of Mines' investigation into acid processes of extracting alumina. The paper discusses the sulphuric acid processes and other work with hydrochloric and nitric acids so that the comparative advantages can be appreciated.
Date:
1927
Creator:
Tilley, George S.; Millar, Russell Ward & Ralston, Oliver Caldwell
Object Type:
Report
System:
The UNT Digital Library
An Adaptive System for Process Control
Abstract: Researchers at the U.S. Bureau of Mines (USBM) have developed adaptive process control systems in which genetic algorithms (GA's) are used to augment fuzzy logic controllers (FLC's). GA's are search algorithms that rapidly locate near-optimum solutions to a wide spectrum of problems by loosely modeling the search procedures of natural genetics. FLC's are rule-based systems that efficiently manipulate a problem environment by modeling the "rule-of-thumb" strategy used in human decisionmaking. Together, GA's and FLC's include all of the capabilities necessary to produce powerful, efficient, and robust adaptive control systems. To perform efficiently, such control systems require a cont element to manipulate the problem environment, an analysis element to recognize changes in the problem environment, and an adaptive element to adjust to the changes in the problem environment. The control system also employs a computer simulation of the problem environment. Details of an overall adaptive control system are discussed. A specific laboratory acid-base pH system is used to demonstrate the ideas presented; all results are from the physical laboratory system and not from a computer simulation.
Date:
1995
Creator:
Karr, Charles L.; Gentry, E. J. & Stanley, D. A.
Object Type:
Report
System:
The UNT Digital Library
Adhesion of Diamond Films on Tungsten
The U.S. Bureau of Mines has investigated the chemical vapor deposition of diamond films on tungsten substrates. The effects of deposition parameters on the adhesion of the films was determined. The films were produced using a hot filament chemical vapor deposition system. Parameters investigated were substrate temperature and methane concentration in the feed gas. Film quality, morphology, and composition were characterized by scanning electron microscopy and Raman spectroscopy. Adhesion testing was performed using an indentation technique, and the results were quantified by relating adhesion to interface fracture toughness. Diamond films with well-faceted crystalline morphology with grain size greater than 1 pm had poor adhesion properties regardless of substrate temperature or methane concentration. Diamond films with smooth morphologies consisting of rounded clusters of small (<0.2 pm) diamond crystallites and amorphous carbon phases displayed much higher adhesion, although the conditions that led to the growth of these films are not understood.
Date:
1995
Creator:
Maggs, K. J.; Walkiewicz, J. W. & Clark, A. E.
Object Type:
Report
System:
The UNT Digital Library
Advances in Coal Spectrometry: Absorption Spectrometry
Report from the U.S. Bureau of mines discussing the use of infared and ultraviolet-visible spectrometry to study the structure of coal and coal extracts.
Date:
1967
Creator:
Friedel, Robert A.; Retcofsky, H. L. & Queiser, J. A.
Object Type:
Report
System:
The UNT Digital Library
Agglomeration and Leaching of Slimes and Other Finely Divided Ores
Report discussing the loads and extracting of slime and other divided ores. The report discusses experimental work done on the materials.
Date:
1930
Creator:
Sullivan, John D. & Towne, Alfred P.
Object Type:
Report
System:
The UNT Digital Library
Agglomeration Studies in the Low-Pressure Hydrogenation of Coal in a Fluidized Bed
Report discussing hydrogenation of coal at a low-pressure displaying results of the experiments.
Date:
1959
Creator:
Kawa, Walter; Hiteshue, Raymond W.; Budd, William A.; Friedman, Sam & Anderson, Robert B.
Object Type:
Report
System:
The UNT Digital Library
Agglutinating, Coking, and By-Product Tests of Coals From Pierce County, Washington
Report discussing testing of coals in Pierce County, Washington. The investigation had three parts: a geological survey of the coal property, washing and crushing tests of the coals, and coking and by-product tests.
Date:
1931
Creator:
Marshall, S. M. & Bird, B. M.
Object Type:
Report
System:
The UNT Digital Library
Air and Gas Injection in the Oil Fields of Illinois
Report issued by the U.S. Bureau of Mines on the gas injection methods in the oil fields of Illinois. The results and properties of the injections are presented. This report includes tables, graphs, illustrations, and maps.
Date:
November 1944
Creator:
Keithly, C. M. & Jennings, Thomas
Object Type:
Report
System:
The UNT Digital Library
Air Pollution: A Bibliography
Report displays a bibliography of numerous literature affirms air pollution has been a problem through the centuries.
Date:
1954
Creator:
Davenport, S. J. & Morgis, G. G.
Object Type:
Report
System:
The UNT Digital Library
Alaskan Coal Problems
Report discussing coal problems existing in Alaska, which Alaskan coal has high value.
Date:
1911
Creator:
Fisher, Walter L.
Object Type:
Report
System:
The UNT Digital Library
Alumina Miniplant Operations: Separation of Aluminum Chloride Liquor from Leach Residue Solids by Classification and Thickening
Report issued by the Bureau of Mines over recovery methods of alumina through leaching of kaolin clay. The materials, equipment, and procedures used are discussed. This report includes tables, and illustrations.
Date:
1983
Creator:
Sorensen, Roy T.; Sawyer, Dwight L., Jr. & Turner, Theodore L.
Object Type:
Report
System:
The UNT Digital Library
American Lignites: Geological Occurrence, Petrographic Composition, And Extractable Waxes
Report discussing experiments done on expandable waxes of lignites to determine yields and properties from certain place in the United States.
Date:
1950
Creator:
Selvig, W. A.; Ode, W. H.; Parks, B. C. & O'Donnell, H. J.
Object Type:
Report
System:
The UNT Digital Library
American Standard Recommended Practice for Drainage of Coal Mines (M6.1-1955, UDC 622.5)
Report discussing standardizations when dealing with pumps for draining and storing water in coal mines.
Date:
1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
American Standard Safety Code for Installing and Using Electrical Equipment in and About Coal Mines (M2.1)
Report discussing steps required when using, installing, inspection of electrical equipment in coal mines in order in order to minimize hazards.
Date:
1952
Creator:
United States. Bureau of Mines.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Air from Burning Buildings
This report provides results of analyses and pertinent fata regarding eleven samples taken from the composition of the air in burning buildings.
Date:
November 1920
Creator:
Katz, S. H.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Alaska Coals
Report issued by the Bureau of Mines discussing the coal fields of Alaska. Analyses of the Alaskan coal fields are presented in detail. This report includes tables, and a map.
Date:
1946
Creator:
Gates, George O. & Fieldner, Arno Carl
Object Type:
Report
System:
The UNT Digital Library
Analyses of Arizona, California, Idaho, Nevada and Oregon Coals
Technical paper issued by the Bureau of Mines over analyses of coals from many western states. The characteristics of the coals found in each state are discussed in detail. This paper includes tables, and maps.
Date:
1947
Creator:
Andrews, David A.; Hendricks, Thomas A. & Huddle, John W.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Ash from United States Coals
Report summarizing analyses done on ash of coal from the United States.
Date:
1956
Creator:
Selvig, W. A. & Gibson, F. H.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses
From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library