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  • NIOSH
    OFR-66-82 Hybrid Computer System For Optimization Of Extraction Procedures In Tabular Coal Deposits

    By Michael P. Hardy

    The report described improvements and applications of the Hybrid Computer facility. Improvements implemented under U.S.B.M. Contract H0252035 included expansion of the capability to model nonlinear se

    Jan 1, 1977

  • NIOSH
    OFR-158-81 Ground Fault And Overcurrent Protection Criteria For Coal Mine AC Distribution Systems

    By John A. Kiefer

    Ground fault and overcurrent protection criteria for coal mine a.c. distribution systems were examined under a Bureau of Mines funded investigation. The report begins with a literature review which di

    Jan 1, 1980

  • NIOSH
    OFR-28-75 Quantitative Measurements Of The Physiological Responses And Metabolic Requirements Of Mine Workers With Reference To Emergency Situations

    By Eliezer Kamon

    To finalize the three years granted for the study of miners physiological responses to emergency situations, all the data obtained, were summarized into the following relevant sections; A.. Informa

    Jan 1, 1974

  • NIOSH
    RI 6828 Nonpegmatitic Beryllium Occurrences In Arizona, Colorado, New Mexico, Utah, And Four Adjacent States

    By Henry C. Meeves

    The nonpegmatitic sources of beryllium in Arizona, Colorado, New Mexico, Utah, and four adjacent states investigated by the Bureau of Mines are described. The investigations included 155 properties fr

    Jan 1, 1966

  • NIOSH
    IC 8902 A Review Of Methods For Identifying Scrap Metals

    As part of the Bureau of Mines program for conserving domestic mineral resources, a survey was made of the methods used for identifying scrap metals. Because of the large number of alloys currently be

    Jan 1, 1982

  • NIOSH
    RI 3551 Beehive And Byproduct Coking In Washington ? Introduction

    By Joseph Daniels

    [Adequate supplies of suitable coal and coke are prime requisites in many industries, particularly those dealing with the utilization of mineral resources, recently interest has been focused on the po

    Jan 1, 1941

  • NIOSH
    IC 8076 Processes For Recovering Sulfur From Secondary Source Materials ? Introduction And Summary

    By B. K. Shibler

    During a research program to develop improved methods for recovering elemental sulfur and useful sulfur compounds from secondary source materials, the technical literature was searched for pertinent a

    Jan 1, 1962

  • NIOSH
    The 1987 World Economy, The 1988 National Economy Through May, And Performance Of The U. S. Nonfuel Mineral Industry - World Economy In 1987

    By Joan Weinberg

    Real output expanded at a 3.0% rate worldwide in 1987, a slightly lower pace than the 3.2% rate in 1986. The decline was accounted for largely by slower growth in the U.S.S.R. and the East European co

    Jan 1, 1988

  • NIOSH
    RI 2977 Rock barriers for coal mines

    By G. S. Rice, H. P. Greenwald, H. C. Howarth

    """Rock-dust barriers""5 as they are termed in this country, are for the purpose of confining a coal-dust mine explosion to the limited area in which it originates. These barriers were first tested in

    Jan 1, 1930

  • NIOSH
    Measuring diesel particulate matter in underground mines using submicron elemental carbon as a surrogate (33b509e5-8040-43bc-84c7-70764ccb89c4)

    By J. D. Noll

    Elemental carbon (EC) is used as a surrogate for regulating the exposure to diesel particulate matter (DPM) of underground metal/non-metal miners. EC was chosen as a surrogate because EC is selective

    Jan 1, 2002

  • NIOSH
    RI 3561 Alunite Resources Of The United States ? Introduction (29994cf6-2f32-4a71-b35a-6001cf8bc70b)

    By J. R. Thoenen

    [Before 1914 Germany held virtual monopoly on the world supply of potash for fertilizer purposes. During the world War, potash shipments to the United States ceased, and recourse was had to domestic s

    Jan 1, 1941

  • NIOSH
    IC 9503 - Explosion Hazards From Methane Emissions Related To Geologic Features In Coal Mines

    By James P. Ulery

    Explosions in U.S. coal mines have caused death and injury to miners and destruction of workings since the first reported explosion in 1810. These explosions are caused when buildups of explosive gas

    Jan 4, 2008

  • NIOSH
    IC 6890 Coal-Mine Fatalities In Alabama 1931-34 ? Introduction

    By Frank E. Cash

    Although during the past 10 years Alabama has attained an enviable position by its coal-mine accident experience and, like most of the other coal-mining States, has made progress in the safer operatio

    Jan 1, 1936

  • NIOSH
    OFR-67-82 Field Evaluation Of Resiliently Clad Screen Decks

    By Michael V. Markel

    This report summarizes work performed under USBM Contract No. J0100047 revealing the performance characteristics of a composite-type resilient screen deck. The ability of the composite to perform or c

    Jan 1, 1981

  • NIOSH
    Using Proximate Analysis to Characterize Airborne Dust Generation from Bituminous Coals

    By Steven J. Page, John A. Organiscak

    The amount of airborne respirable dust generated from break- age of different coals varies widely. This research was conducted to identify the facets of airborne respirable dust liberation from the co

  • NIOSH
    RI 7550 Noise In Underground Coal Mines

    By J. A. Lamonica

    The Bureau of Mines conducted an environmental noise survey to determine the noise levels to which underground coal mine employees are exposed, to evaluate noise survey techniques and equipment, and t

    Jan 1, 1971

  • NIOSH
    RI 9332 - Evaluation of Ultrasonic Measurement Systems for Bolt Load Determinations

    By Stephen C. Tadolini

    The U.S. Bureau of Mines has developed ultrasonic measurement instrumentation capable of measuring strains and elongations on tensioned and untensioned mine roof bolting systems. This report evaluates

    Jan 1, 1990

  • NIOSH
    RI 3416 Truck Vs. Rail. Haulage In Bituminous-Coal Strip Mines ? Introduction

    By Albert L. Toenges

    [sing tho ppsf; few Yomn t!le:.c. hcs beer. p. trqnd away frorn locomotive haulwe of cop2 frorn tile losdiw point to tho prop,nration plant of bitu~i- nnus-cod strip mlncc to a;~to~lzcd. h,71Jlr.:~. T

    Jan 1, 1938

  • NIOSH
    IC 7355 Geophysical Abstracts 123 October-December 1945 - With An Index To Abstracts 120-123

    8186. Aquilina, C. Determinazioni relative di gravita eseguite nel 1939 (Relative Determinations of Gravity Made in 1939), Ric. Ingegn, Rome, vol. 10, 1942, pp, 6376. In 1939, the author made a sur

    Jan 1, 1946

  • NIOSH
    IC 8840 Minerals Health And Safety In-House Research, Development, And Demonstration In Fiscal Year 1981

    This publication summarizes, for all interested parties, the research, development, and demonstration in-house projects programed by the Bureau of Mines for fiscal year 1981 (October 1, 1980 - Septemb

    Jan 1, 1981