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The 1983 Economic Recovery And Measures Of Structural Change In The U.S. Economy And Mining IndustryThe last issue included a discussion of recent indications of a 1983 recovery and a brief analysis of the contribution of the U.S. mining industry to the gross national product (GNP). In this issue we
Jan 1, 1983
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RI 9273 - Physical and Computer Modeling of Roof Bolt SystemsBy S. M. Dar
The U.S. Bureau of Mines constructed a full-scale model of a 15-ft-wide coal mine entry to use in combination with finite-element analyses to investigate roof support systems and various types of roof
Jan 1, 1989
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IC 8197 Methods And Costs Of Exploration And Pilot Plant Testing Of Ilmenite-Bearing Sands, Lakehurst Mine, The Glidden Co., Ocean County, N.J. (1d7a86d6-1646-4299-94a1-f139fcf4774e)By Richard Quirk
This report describes methods and techniques employed by The Glidden Co. of Cleveland, Ohio, in explorating an ilmenite-bearing sand deposit in Ocean County, New Jersey, during 1960 to determine ore r
Jan 1, 1963
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IC 9045 Water-Jet-Assisted Cutting - Proceedings: Bureau Of Mines Open Industry Meeting, Pittsburgh, PA, June 21, 1984Greater mining productivity requires a more efficient cutting process. The cutting force available from today?s mining machines has been optimized with respect to machine size and weight. Researchers
Jan 1, 1985
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RI 9216 Supercritical CO2 Solubility of TiCI4By W. K. Tolley
The Bureau of Mines is testing super critical fluids as solvents to selectively extract valuable components from complex matrices. Materials recovered during supercritical fluid extraction are often h
Jan 1, 1989
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RI 4567 National Motor Gasoline Survey Winter 1948-49By O. C. Blade
This report on the properties of motor fuels sold through service stations in the United States was made in accordance with a cooperative agreement between the American Petroleum Institute and the Bur
Jan 1, 1949
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Mineral Industries Of Europe And Central Eurasia - IntroductionBy Michel C. Frippel
This section of the Minerals Yearbook reviews the minerals industries of 45 countries: the 12 nations of the European Community (EC) (Belgium, Denmark/ Greenland, France, Germany, Greece, Ireland, Ita
Jan 1, 1994
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RI 8390 Incinerated Municipal Sewage Sludge as a Potential Secondary Resource for Metals and PhosphorusBy Robert C. Gabler
Evaluation of incinerated sewage sludge as a secondary resource for aluminum, phosphorus, and minor constituents such as copper and zinc was initiated as part of the Bureau of Mines secondary resource
Jan 1, 1979
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RI 7448 Hazards Associated With The Spillage Of Liquefied Natural Gas On WaterBy D. S. Burgess
An investigation of the hazard of spillage of liquefied natural gas (LNG) onto water is described. About 2,000 gallons of LNG were consumed in various tests. The initial vaporization rate of LNG follo
Jan 1, 1970
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RI 4854 National Motor Gasoline Survey, Summer 1951By O. C. Blade
A summary of the characteristics of motor gasoline for the summer 1951 is presented in table 1, and for comparison, a similar summary for the summer 1950 is shown in table 2. Trends of some of the mor
Jan 1, 1952
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Assessments And Refinements Of An Anthropodynamic Manikin For Seating Dynamics Applications - IntroductionBy H. Nelisse, S. K. Patra, A. Natani, S. Rakheja
The current laboratory methods for assessing the vibration attenuation performance of seats involve repetitive trials with a number of human occupants, and raise certain ethical concerns. Moreover, th
Jan 6, 2006
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OFR-164-83 Evaluation Of Bulkheads For Radon ControlBy Clifford H. Summers
This report describes an experimental program which we conducted on behalf of the U. S. Bureau of Mines, to select from currently available materials two novel systems of construction for air-restrain
Jan 1, 1982
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The Chemical Thermodynamic Properties Of Hydrocarbons And Related Substances - II. Properties Of 25 Organic Sulfur Compounds In The Ideal Gas State From 0° To 1,000° KBy M. Zaki El-Sabban
Tables of chemical thermodynamic properties for the ideal gas state from 0° to 1,000° K are reported for eight alkanethiols, three cycloalkanethiols and arylthiols, six thiaalkanes, two dithiaalkanes,
Jan 1, 1970
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SP-01-95 - Proceedings: Mechanics and Mitigation of Violent Failure in Coal and Hard-Rock MinesrPapers presented at a U.S. Bureau of Mines (USBM) technology transfer seminar describe the causes of violent material failure in U.S. mines, measurement techniques for monitoring events that result in
Jan 1, 1995
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How Smoke Hinders Escape From Coal MineBy F. N. Kissell, C. D. Litton
Abstract-This study predicts the level of smoke that miners might meet while trying to escape a coal mine fire and describes how smoke would impede their safe escape. For this study, the authors assum
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RI 8900 - Partial Replacement of Chromium in Austenitic Stainless Steels by Molybdenum, Copper, and VanadiumBy S. C. Rhoads
The Bureau of Mines is investigating low-chromium alloy substitutes for type 304 stainless steel (type 304 SS). The purpose of the research is to reduce the chromium content in austenitic stainless st
Jan 1, 1984
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The Effect Of Standing Support Stiffness On Primary And Secondary Bolting SystemsBy Stephen C. Tadolini, Yunqing Zhang, Thomas M. Barczak
Standing crib supports have been applied in underground mining programs to resist large roof movements and sustain high-loads. The strength and deformation capability of these systems has been docume
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Low-Temperature Lignite Tar: Processing And UtilizationBy John S. Berber
Acids, neutral oils, and pitch were produced by distillation of low-temperature lignite tar and processed to upgrade them into more valuable products: The acids were separated from the distillate and
Jan 1, 1973
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IC 8147 List Of References To Metal-Halide Vapor Pressures With Bibliography ? IntroductionBy F. D. Stevenson
Thermodynamic properties of metal halides and, in particular, vapor pressures have become of great importance in recent years owing to increased application of chemical processing to extraction of met
Jan 1, 1963
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IC 8972 Review Of Desliming Methods And EquipmentBy Christopher H. Roe
This Bureau of Mines report reviews the various methods of removing the liquid from tailings slurries that contain very fine grained solids. Gravitational settlement, centrifugation, filtration, and t
Jan 1, 1984