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  • NIOSH
    RI 7640 - Methane And Dust Control By Water Infusion - Pittsburgh Coalbed (Fairview, W. Va.)

    By R. P. Vinson, Abdurrahman Cetinbas, Joseph Cervik, M. G. Zabetakis

    The effect of water infusion on the flow of methane and on the production of dust was investigated at an active face in the Pittsburgh coalbed. The average total flow of methane at the face decreased

    Jan 1, 1972

  • NIOSH
    RI 7091 Effects Of Adding Rare-Earth Silicides, Aluminum, And Cryolite To Molten Steel

    By R. J. Leary

    This investigation was conducted to determine the effects of various rare-earth metal addition practices upon the macrostructure and the pattern of sulfur distribution in steel ingots. Heats of plain

    Jan 1, 1968

  • NIOSH
    OFR-8-86 Bag Machine Dust Controls And Bag Sealing

    By T. L. Muldoon

    The bagging of dry pulverized products using fluidized air packers creates severe respirable dust problems in many surface mining operations. During bag filling, excess air and product blows by the ba

    Jan 1, 1985

  • NIOSH
    OFR-50-88 Mineral Investigations In The Juneau Mining District, Alaska (Eagle River Area)

    By Joseph M. Kurtak

    The Bureau of Mines conducted a four year (1985-1988) mineral assessment of the Juneau Mining District in southeast Alaska as part of its ongoing statewide mining district evaluation program. Followin

    Jan 1, 2011

  • NIOSH
    MLA 23-83 - Mineral Investigation Of The Olallie Rare II Area (No. 6099), Marion And Jefferson Counties, Oregon - Summary

    By Terry R. Neumann

    The Olallie RARE II study area has volcanic cinder deposits with a sow potential for development. No mining claims or prospects are known within the study area, and except for common construction mate

    Jan 1, 1983

  • NIOSH
    RI 7455 Characteristics Of Electrowon And Of Hydrogen-Reduced Molybdenum Powder And Sheet

    By E. F. Ferrell

    Electrowon molybdenum powders and a commercial hydrogen-reduced powder, all with different minor impurities, were investigated by the Bureau of Mines with respect to inherent properties, to fabricatio

    Jan 1, 1970

  • NIOSH
    OFR-53-81 Survey Of Attractive Energy Storage And Power Averaging Concepts Applicable To Mining Machines

    By William N. Patterson

    Drive systems for mining machines are usually sized to accommodate anticipated peak loads. Usually, the average power requirements are considerably less. Energy storage and power averaging are attract

    Jan 1, 1980

  • NIOSH
    RI 6026 Calibration Study Of A Peak-Reading Accelerograph

    By Alfred V. C. Meyer

    A Blastcorder4 was calibrated on the Bureau of Mines shaking table in the frequency range of 12 to 40 c.p.s. and in the amplitude range' of 0.25 to 1.0 g. The results of this calibration study sh

    Jan 1, 1962

  • NIOSH
    IC 6627 Iron Oxide Pigments and Mortar Colors

    By R. M. Santmyers

    The pigments, whose colors are due primarily to iron exides and iron hydroxides, comprise a variety of yellow, brown, red, and sometimes black paint-coloring agents, both natural and artificially prep

    May 1, 1932

  • NIOSH
    OFR-52-75 Handbook For Surveys Of Inhalation Contaminants In Above Ground Coal Mining And Processing Work Areas ? I. Introduction

    The objective of this handbook is to provide the inspector with guidance for recognizing hazards from inhalation contaminants in above ground work areas of underground and surface coal mining and proc

    Jan 1, 1975

  • NIOSH
    MLA 96-83 - Mineral Investigation Of The Sugarloaf Rare II Area (No. 5296), Esmeralda And Mineral Counties, Nevada ? Summary

    By Steven W. Schmauch

    The Sugarloaf RARE II area (No. 5296) covers 11,100 acres in the northern part of the White Mountain Range, in the Inyo fictional Forrest. It is in Nevada, about 45 mi north of Bishop, California. A m

    Jan 1, 1983

  • NIOSH
    RI 5168 Methods For Analyzing Titanium Sponge And Intermediate Products ? Summary And Introduction

    By P. R. Perry

    This publication is a compilation of tested methods for the analyses of titanium tetrachloride, titanium sponge, and various intermediate materials and products. They are presented in concise form wit

    Jan 1, 1955

  • NIOSH
    RI 7623 Photoelectric Concentrator For The Wet Concentrating Table

    By R. A. Welsh

    The Bureau of Mines has developed a photoelectric concentrator apparatus which is capable of collecting incremental products from the discharge of wet concentrating tables. The instrument uses photoel

    Jan 1, 1972

  • NIOSH
    RI 9537 - Relative Self-Heating Tendencies of Coal, Carbonaceous Shales, and Coal Refuse

    By Ann G. Kim

    Studies on the initiation and propagation of mine fires have dealt almost exclusively with coal. It has been assumed that the self-heating potential of carbonaceous shales and coal wastes is relativel

    Jan 1, 2010

  • NIOSH
    Submicrometer elemental carbon as a selective measure of diesel particulate matter in coal mines

    By James D. Noll, M. Eileen Birch

    A monitoring method for diesel particulate matter was published as Method 5040 by the National Institute for Occupational Safety and Health (NIOSH). Organic and elemental carbon are determined by the

  • NIOSH
    IC 8811 Methodology For Evaluating Integral Gaussian Profiles

    By Arthur B. Campbell

    This Bureau of Mines report describes a method that utilizes a computer program to evaluate integral Gaussian profiles of atomic concentration versus depth in a solid. The specific use illustrated inv

    Jan 1, 1979

  • NIOSH
    RI 2582 The Distribution Of Sulphur In Crude Petroleum

    By N. A. C. Smith, D. D. Stark

    "Sulphur is apparently a normal Constituent of crude petroleum, but in most crudes is present in percentages of less than one-half of one per cent. Some crudes, however, contain more, and occurrences

    Mar 1, 1924

  • NIOSH
    Determination Of In Situ Deformation Modulus For Cemented Rockfill

    By D. R. Tesarik, F. M. Jones, J. B. Seymour

    As part of safety and stability studies at three underground mines in the United States, researchers installed earth pressure cells and embedment strain gauges in cemented rockfill to measure stress a

  • NIOSH
    Bureau Of Mines Mineral Investigations In The Juneau Mining District, Alaska, 1984-1988 - Volume 2.- Detailed Mine, Prospect, And Mineral Occurrence Descriptions - Section A - Haines-Klukwan-Porcupine Subarea ? Introduction

    By Jan C. Still

    The Haines-Klukwan-Porcupine subarea of the Juneau Mining District (JMD) is located in the northern portion of the JMD and consists of the land between the Alaska-British Columbia boundary, the Chilko

    Jan 1, 2012

  • NIOSH
    RI 5963 Experiments In Purifying Solutions From Lime-Sintered Beryl Concentrates ? Summary

    By J. M. Riley

    This report summarizes Bureau of Mines experiments in purifying sulfate leach liquors, which were prepared from low-tenor beryl concentrates by modifying the Degussa process. The leach liquor was prep

    Jan 1, 1962