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  • NIOSH
    OFR-104(4)-80 Selective Placement Of Coal Strip Mine Overburden In Montana - IV. Hydrogeologic Studies

    By D. J. Dollhopf

    This research was part of an effort to investigate means of reestablishing non¬polluted hydrological systems in areas where surface mining directly impacts shallow ground-water resources. Chemically

    Jan 1, 1979

  • NIOSH
    OFR-107-77 Minimum Cost Strategies For Longwall Equipment Moves

    By Thomas Gales

    Longwall mining has a high potential for producing bulk production from a single face. Production is interrupted for a considerable time when it is necessary to move the equipment to a new block of co

    Jan 1, 1977

  • NIOSH
    In Situ Measurement Of Rock Stress With Hydraulic Borehole Pressure Cells ? Objective

    Develop a new technique of in situ rock stress measurement which can be used when and where the conventional methods, such as the overcoring stress relief methods and the hydrofracturing method, canno

    Jan 1, 1988

  • NIOSH
    Using Ultrasonic Anemometers to Evaluate Factors Affecting Face Ventilation Effectiveness

    By T. Mal

    A test system was developed at the National Institute for Occupational Safety and Health's ventilation test gallery for measuring airflow using a three-axis ultrasonic anemometer. The gallery war

  • NIOSH
    The Introduction Of Roof Bolting To U.S. Underground Coal Mines (1948-1960): A Cautionary Tale

    By Christopher Mark

    Perhaps the most significant development in coal mine ground control during the last century was the introduction of roof bolting during the late 1940’s and 1950’s. From an engineering standpoint, ro

  • NIOSH
    RI 7811 Accuracy and Precision of Several Portable Gas Detectors

    By H. B. Carroll

    This Bureau of Mines report evaluates the performance of commercially available portable instrumentation for the detection of carbon monoxide, carbon dioxide, oxygen, and methane at conditions simulat

    Jan 1, 1973

  • NIOSH
    Statistical Summary (20974319-39fc-4ab8-b4ea-bb719eb86e4e)

    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 c

    Jan 1, 1980

  • NIOSH
    IC 8204 Mining Methods And Costs, Mouat Mine, American Chrome Co., Still Water County, Mont. (92c1131e-e784-4994-8b74-2febee9dafcb)

    By Paul M. Price

    The Mouat mine, Nye, Mont., was reopened in 1953 by the American Chrome Co. under a Defense Minerals Production Administration contract. Operations were terminated in 1961 after completion of the cont

    Jan 1, 1963

  • NIOSH
    RI 8468 A Laboratory Test To Evaluate the Resistance of Refractories to Molten Slags

    By J. R. Cobble

    As part of the Federal Bureau of Mines project to develop new or improved materials for metallurgical furnace applications, the Tuscaloosa (Ala.) Research Center has conducted research to develop a re

    Jan 1, 1980

  • NIOSH
    IC 8202 Sand And Gravel Operations And Costs, Concrete Materials And Construction Division, Martin Marietta Corp., West Des Moines, Iowa

    By L. G. Marshall

    This report describes dredging and processing of sand and gravel from a glacial-fluvial deposit in the Raccoon River valley near West Des Moines, Iowa. Preliminary cleaning and separation of the sand

    Jan 1, 1963

  • NIOSH
    Mineral Industries Of Europe And Central Eurasia - Introduction

    By 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

  • NIOSH
    RI 3257 Production of Explosives in the United States during the Calendar Year 1933

    By V. E. Erwin, W. W. Adams, E. V. Walters

    "Increased production of explosives in the United States in 1933 compared with 1932 is shown by statistics compiled by the Demographical Division, Health and Safety Branch, United States Bureau of Min

    Nov 1, 1934

  • NIOSH
    Mineral Resources Of The South Fork Owyhee River Study Areas, Owyhee County, Idaho, And Elko County, Nevada ? Summary

    By Ronald T. Mayerle

    A mineral survey of portions of two contiguous WSAs (Wilderness Study Areas) along the South Fork Owyhee River in southwestern Idaho and north-central Nevada was done by the U.S. Bureau of dines in 19

    Jan 1, 1986

  • NIOSH
    RI 7659 Lowering The Tin Content Of Secondary Leaded Tin-Bronze By Replacement With Lead Or Zinc

    By E. R. Cole

    Laboratory heats of an 80 percent copper high-leaded tin-bronze alloy, similar to Brass and Bronze Ingot Institute (BBII) alloy 3A, were made with reduced tin content to determine whether an alloy com

    Jan 1, 1972

  • NIOSH
    IC 7000 Treatment And Sale Of Black Sands

    By M. W. Von Bernewitz

    Fay's glossary3/ of terms contains the following definition of "black sand": Heavy grains of various minerals which have a dark color and. are usually found accompanying gold in alluvial depos

    Jan 1, 1938

  • NIOSH
    IC 6009 Gases Commonly Used in the Industries and the Home and Their Hazards

    By A. C. Fieldner

    "Gas hazards may be divided into two principal classes- namely (1) inflammation and explosions; (2) asphyxiation and poisoning. Inflammation and explosion are prevented first by adequate ventilation s

    Jun 1, 1926

  • NIOSH
    OFR-78-86 Belt Conveyor Maintenance And Installation Procedures

    By Svend [Bue] Rondum

    The final report contains a summary of the work performed under this contract, In addition to the report itself, other products were derived from this effort. Several hardware items were prototyped fo

    Jan 1, 1982

  • NIOSH
    RI 7936 Reducing Surface Hot Shortness of Copper-Containing Steels Using Silicon Additions and Controlled Reheating Conditions

    By Mark I. Copeland

    This study was conducted by the Bureau of Mines to determine the effect of steel reheating practices in burning natural gas on the amount of silicon required to prevent the formation of copper on stee

    Jan 1, 1974

  • NIOSH
    Repeatability of a Checklist for Evaluation Cab Design Characteristics of Heavy Mobile Equipment

    By Michael J. Jorgensen, Pranathi B. Aedla, N. K. Kittusamy

    Risk factors associated with the development of muscu­loskeletal discomfort and disorders during the operation of heavy mobile equipment include whole-body vibration and awkward and sustained joint po

  • NIOSH
    IC 8178 Three Waterflooding Projects And A Pressure-Maintenance Project In Butler And Cowley Counties, Kans., 1963

    By Kenneth H. Johnston

    This report describes in detail three waterflooding projects and a pres-sure-maintenance project in Butler and Cowley Counties, Kans., that will be visited on the 1963 annual spring tour of the Kansas

    Jan 1, 1963