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  • NIOSH
    RI 7237 Application Of Statistical Response Surface Fitting In Predicting Lignite Properties

    By Manuel Gomez

    The Bureau of Mines used data from 31 core samples to develop prediction equations for evaluating chemical and carbonization properties of six seam units in a lignite deposit approximately 2 miles wid

    Jan 1, 1969

  • NIOSH
    Mineral Indicators - Aluminum (1be79343-8f77-4124-87c3-6887d4c4a923)

    Electric power curtailments resulting from the coal strike, required Noranda Aluminum, Inc. to shut down its 140,000 ton-per-year (tpy) primary aluminum smelter at New Madrid, Mo., and layoff 308 work

    Jan 1, 1978

  • NIOSH
    IC 7357 Extraction And Uses Of Beryllium In Germany ? Foreword

    By George T. Motock

    The author prepared the following report as the result of a trip to Germany in the summer of 1945 for the Technical Industrial Intelligence Commitee Subcommittee on Metals and Minerals. The purpose of

    Jan 1, 1946

  • NIOSH
    RI 7686 Dispersion Strengthening Of Internally Oxidized Iron-Aluminum Alloys

    By Mark I. Copeland

    The formation of A1203 dispersoids 0,14 and less in size in dilute iron-aluminum alloys by internal oxidation in wet hydrogen and dispersion strengthening of iron by application of the technique to ir

    Jan 1, 1972

  • NIOSH
    RI 5578 Crushing Chestnut-Size Anthracite To Produce Buckwheat No.1 And Rice Sizes ? Summary And Conclusions

    By J. W. Eckerd

    The crushing of chestnut-size (1-5/8 by 13/16 inch) Pennsylvania anthracite in four commercial crushers (impact) jaw) hammer-mill) and gyratory types) was studied by the Bureau of Mines to determine w

    Jan 1, 1960

  • NIOSH
    IC 7176 Detailed Study Of 60-Day Nonfatal Underground Accidents In Pennsylvania Bituminous Coal Mines During 1939 ? Introduction

    By L. C. IlsLey

    Through the cooperation of the Pennsylvania Department of Mines the writer obtained from State, records detailed information concerning coal-mine accidents occurring in Pennsylvania bituminous mines d

    Jan 1, 1941

  • NIOSH
    RI 4892 Petroleum-Engineering Study Of K.M.A. Reservoir, Southwestern Part Of K.M.A. Oil Field, Wichita And Archer Counties, Tex.

    By Rollie P. Dobyns

    The K.M.A. reservoir was discovered to be oil bearing at a depth of 3,719 feet on March 11, 1931. Extensive development, however, was not begun immediately, because the discovery well had a low initia

    Jan 1, 1952

  • NIOSH
    RI 8179 Metallization of Pelletized, Domestic, Iron Oxide Superconcentrates With Lignite and Coal in a Rotary Kiln

    By Roy E. Peterson

    The Bureau of Mines conducted an investigation to produce metallized pellets from domestic iron ore superconcentrates using lignite and subbituminous coal as reductants. Feed materials for the metalli

    Jan 1, 1976

  • NIOSH
    Low-Temperature Carbonization Assays Of North American Coals ? Summary

    By W. A. Selvig

    [THE BUREAU OF MINES receives many requests for information regarding the low-temperature carbonization properties of American coals. This report presents in collected form the results of Fischer-Schr

    Jan 1, 1957

  • NIOSH
    Altered Calcium Homeostasis and Cell Injury in Silica-Exposed Alveolar Macrophages

    By D. E. Banks, J. K. H. Ma, Y. Rojanasakul, J. Y. C. Ma, C. J. Malanga

    There is evidence to suggest that cell injury induced in alveolar macrophages (AM) following phagocytic activation by silica particles may be mediated through changes in intracellular free calcium [Ca

    Nov 1, 1995

  • NIOSH
    IC 7806 Use Of Lignin Sulfonate For Dust Control On Haulage Roads In Arid Regions ? Summary And Introduction

    By John P. Harmon

    Vehicles traveling on untreated dirt and gravel roads at open-pit mines disseminate high concentrations of dust (fig. 1). Excessive dust creates safety hazards by reducing visibility and may endanger

    Jan 1, 1957

  • NIOSH
    RI 5332 Analyses Of Tipple And Delivered Samples Of Coal (Collected During The Fiscal Year 1956) ? Introduction

    By S. J. Aresco

    The Bureau of Mines has been active in promoting the purchase of coal for Government use under specifications that define the requirements in terms of heating value of the coal, expressed in British t

    Jan 1, 1957

  • NIOSH
    RI 7063 Vapor Pressures Of Liquid Molybdenum (2,890° To 2,990° K) And Liquid Zirconium (2,229° To 2,795° K)

    By R. K. Koch

    The vapor pressures of liquid molybdenum and liquid zirconium were determined by the Langmuir free-evaporation method. An electron-beam furnace with a water-cooled copper crucible was used for melting

    Jan 1, 1968

  • NIOSH
    RI 4531 Sampling And Determination Of Aldehydes In Diesel-Engine Exhaust Gas And In Mine Air

    By Henry W. Busch

    Determination of the aldehyde content of Diesel-engine exhaust gas has proved rather cumbersome and unsatisfactory when carried out in its entirety in field investigations; therefore, studies were con

    Jan 1, 1949

  • NIOSH
    IC 7191 Prevention Of Premature Shots During Springing Of Deep Drill Holes In Quarries And Open-Pit Workings - Introduction

    By D. Harrington

    Springing or chambering of deep drill holes is common practice in some quarries. It involves definite hazards from premature explosion during placing of the springing charges or the final charge due c

    Jan 1, 1941

  • NIOSH
    RI 7569 Preparation Of Thorium-Magnesium Alloys And Pure Thorium By Magnesium Reduction Of Thorium Tetrachloride

    By T. T. Campbell

    Studies were conducted by the Bureau of Mines to develop a process for preparing thorium-magnesium master alloys or pure thorium metal by magnesium reduction of thorium tetrachloride in a semicontinuo

    Jan 1, 1971

  • NIOSH
    RI 2674 The Ignition Of Firedamp By Exposed Filaments Of Electric Mine-Lamp Bulbs.

    By R. D. Leitch

    Tests have recently been conducted by the Bureau of wines on the ignition hazard of exposing heated filaments of electric mine lam bulbs in an explosive mixture of methane and air. This investigation

    Jan 1, 1925

  • NIOSH
    IC 9299 Wire Ropes Used For Hoisting In U.S. Mines

    By W. M. McKewan

    This U.S. Bureau of Mines report discusses wire ropes used for hoisting in U.S. mines. The in-formation presented was extracted from a large body of data compiled by the U.S. Mine Safety and Health Ad

    Jan 1, 1991

  • NIOSH
    RI 7578 Rock-Bolt Anchorage In Tertiary-Gravel Material: Badger Hill, California

    By John P. Conway

    This Bureau of Mines investigation was undertaken to determine the feasibility of lock-bolt support in Tertiary-gravel material. Pull tests were performed on five types of rock-bolt anchors to determi

    Jan 1, 1971

  • NIOSH
    Bulletin 15 Investigations Of Explosives Used In Coal Mines

    By Clarence Hall, S. P. Howell, W. O. SNELLING

    The explosives used in coal mines not only occasion accidents such as occur in the use of explosives elsewhere, but they frequently cause widespread disasters by igniting explosive mixtures of mine ga

    Jan 1, 1912