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IC 7013 Power-Shovel And Dragline Placer Mining ? Introduction
By E. D. Gardner
This is one of a series of paper's being published by the Bureau of Mines on placer mining; it is written as a supplement to Information Circular 6788, "Placer Mining in the Western United State
Jan 1, 1938
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OFR-25(1)-74 Improved Sensors And Fire Control Systems For Mining Equipment - Phase I Report - Executive Summary - I. Introduction
Phase I of U.S. Bureau of Mines contract H01220S3, "Improved Sensors and Fire Control Systems for Mining Equipment, II was an investigative effort involving study of the fire problem and preliminary d
Jan 1, 1972
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OFR-21-79 A Search Process To Locate An Underground Coal Mine To Participate In The Development Of A Labor Management Experiment In Socio-Technical Innovations
By Eric L. Trist
The objective of this contract was to review the results of the Rushton Mining experiment in work organization and design, to explore the extension of knowledge gained from Rushton to other undergroun
Jan 1, 1978
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RI 7958 Strengthening Molybdenum by Powder Metallurgical Internal Oxidation of ZrMo2
By W. L. Brien, O&apos
Molybdenum alloys with good strength properties at elevated temperatures were produced by the powder metallurgical internal oxidation method previously applied to tungsten and known as oxyreaction str
Jan 1, 1974
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OFR-61-84 Role Of Rock-Fluid Reactions In The Enhanced Recovery Of Petroleum ? Introduction
By W. H. Somerton
Many oil-producing formations contain significant amounts of clay. Because of the large surface area and reactivity of such surfaces, the response of the formations to various recovery processes may b
Jan 1, 1984
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OFR-49-83 State-Of-The-Art Environmental Assessment Of Onshore Disposal Of Manganese Nodule Rejects
By P. A. Kennedy
An environmental assessment or impact statement for onshore waste disposal under the Notional Environmental Policy Act is expected to occur with the development of commercial deep seabed mining. An en
Jan 1, 1982
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Mine Face Ventilation: A Comparison Of CFD Results Against Benchmark Experiments For The CFD Code Validation
By G. Huang, S. Vytla
Computational fluid dynamics (CFD) is a continually developing numerical technique by which complex fluid flow problems can be solved on computers. To be able to transfer CFD expertise to analyze and
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RI 7607 An Experiment In Seismic Holography
By G. L. Fitzpatrick
Preliminary results of an experiment in seismic holography indicate that the techniques of acoustical holography may be successfully used with seismic waves to determine the size and general shape of
Jan 1, 1972
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Statistical Summary (5ae8598a-a428-4f67-bb47-ef44f8bb7aef)
This chapter summarizes data on crude mineral production for the United States, its island possessions, and the Common- wealth of Puerto Rico. Included also are tables that show the principal mineral
Jan 1, 1978
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OFR-156-83 Diesel Engines In Underground Mining: A Bibliography With Abstracts
By Robert W. Waytulonis
This publication contains 1,000 citations of technical and semi-technical literature treating diesel-powered equipment usage underground both generally and specifically. These citations were gathered
Jan 1, 1983
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RI 8396 Absorption of Radium and Thorium From Wyoming and Utah Uranium Mill Tailings Solutions
By H. R. Beard
The Federal Bureau of Mines investigated the absorption of radium and thorium from waste uranium leach liquor by clays and other materials. This work was conducted in support of the Bureau's goal
Jan 1, 1979
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OFR-10-72 A Mathematical Model Simulating Flow Of Methane And Water In Coal ? Introduction
By H. S. Price
This report discusses the development of a mathematical model that describes the flow of methane only and methane and water in a coal bed during mining operations. Because of the complex geometry, bou
Jan 1, 2012
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OFR-78-83 Feasibility Study Of Automated Continuous Explosive Excavation Systems
By E. Concha
The concept of an Automated Continuous Explosive Excavation system (ACEE) for the underground mining applications of development drifting and room and pillar mining has been evaluated in comparison wi
Jan 1, 1982
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RI 9342 - Laboratory Evaluation of Cable Bolt Supports (In Two Parts) 2. Evaluation of Supports Using Conventional Cables With Steel Buttons, Birdcage Cables, and Epoxy-Coated Cables
By J. M. Goris
The U.S. Bureau of Mines is conducting research on cable bolt ground supports to assess their material and support properties, to provide design criteria for using cable bolt supports as roof control
Jan 1, 1991
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RI 2637 Some Features of Ventilating Fans At 164 Coal and Metal Mines
By D. Harrington, M. W. Von Bernewitz
"Introduction In studying the mine disaster files of the Bureau of Mires for preparation of a bulletin on coal-mine explosions, a table was compiled covering various features of fan installations and
Sep 1, 1924
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RI 6145 Low-Temperature Phase Equilibria Of Helium-Bearing Natural Gases: Hansford Gas
By Lowell Stroud
This report is the third in a series presenting equilibrium vapor-liquid data for helium-bearing natural gases. The first two reports contained phase data for the gases processed for helium at the Bur
Jan 1, 1963
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RI 7141 Entrained-Bed Carbonization Of Highly Fluid Bituminous Coals
By Manuel Gomez
Bituminous coals having maximum fluidity values in the 40- to 25,400-dial-divisions-per-minute (ddpm) range were carbonized in a continuous, entrained-bed reactor. Carbonization was conducted in an 8-
Jan 1, 1968
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OFR-47(5)-83 Ecological Studies On The Revegtation Process Of Surface Coal Mined Areas In North Dakota - 5. Plant Production On Spoils And Topsoils As Affected By Time And Amendments
By Richard H. Bares
One criterion central to most definitions of reclamation is the restoration of mined lands to their original productive potential. This is often difficult to achieve on mined lands in the Northern Gre
Jan 1, 1982
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A Computer Simulation Model For Surface Mine Reclamation Planning - Volume IV: User's Manual For OPMHS/2
By R. V. Ramani
This volume is the fourth of a four-volume final report on research carried out under a contract from the U.S. Bureau of Mines on the development of a computer simulation model for surface mine reclam
Jan 1, 1985
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RI 5638 Producing Nickel-Bearing Iron From Cuban Ores In A Batch Rotary Kiln - Summary
By Warren M. Mahan
A rotary kiln process was developed by the Federal Bureau of Mines to produce consistently an iron product containing 3 to 7 percent nickel. Cuban laterite and serpentine ores were smelted in a gas-fi
Jan 1, 1960