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  • NIOSH
    RI 3172 Inflammability of Mixed Gases: Mixtures of Methane, Ethane, Hydrogen, and Nitrogen

    By R. E. Kennedy

    "INTRODUCTION In a previous publication4 results were given of numerous experiments made on the in-flammability of gas mixtures consisting of methane, hydro a. carbon monoxide, nitrogen, and carbon di

    May 1, 1932

  • NIOSH
    A New Method To Clean Dust From Soiled Work Clothes

    By J. L. Howell, D. E. Pollock, A. B. Cecala, A. D. O’Brien

    Dust from worker,s clothes has been shown to be a problematic source of personal dust exposure. A recently completed effort between NIOSH and the Unimin Corporation has resulted in a quick and effecti

  • NIOSH
    RI 5975 Some Properties Of Vanadium ? Summary

    By R. Lincoln

    A surplus of vanadium has resulted from the tremendous output of uranium, of which vanadium is a byproduct. More knowledge of the properties and characteristics of vanadium as a pure metal has been ne

    Jan 1, 1962

  • NIOSH
    RI 3050 Leaching Copper Ores

    By John D. Sullivan, Alfred P. Towne

    "In copper percolation-leaching plants the ore is usually crushed to a maximum size of about three-eighths inch. Ordinarily an ore is crushed as finely as feasible since the rate of extraction of copp

    Feb 1, 1931

  • NIOSH
    OFR-98-80 Concept Study Shuttle Car Cable Reel

    By R. J. Gunderman

    Cable reel systems for shuttle cars were investigated to determine whether an improved system could be identified. Interviews and mine visits were conducted to better define limitations and problems w

    Jan 1, 1980

  • NIOSH
    RI 3575 Experiments On Strength Of Small Pillars Of Coal In The Pittsburgh Bed

    By H. P. Greenwald, Irving Hartman, H. C. Howarth

    "INTRODUCTION A report of tests of seven small pillars formed from the Pittsburgh coal bed in the Experimental coal mine was given in Technical Paper 605 5/ Five additional pillars were tested between

    Jun 1, 1941

  • 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
    Bulletin 203 Central District Bituminous Coals as Water-Gas Generator Fuel

    By W. A. Dunkley, W. W. Odell

    About two-thirds of the manufactured gas supplied to the public by the gas plants in the Illinois district is cnrbureted water gas. The leading generator fuel is coke, ma.de in by-product c.oke ovens

    Jan 1, 1924

  • NIOSH
    Updating the NIOSH Support Technology Optimization Program (STOP) With New Support Technologies and Additional Design Features

    By Thomas M. Barczak

    The initial Support Technology Optimization Program (STOP),Version 1.0, was released at the 19th Ground Control Conference. This original program has since been updated to Version 2.3 which was releas

  • NIOSH
    Development And Application Of The Coal Mine Roof Rating (CMRR)

    By Gregory M. Molinda

    The Coal Mine Roof Rating (CMRR) was developed 10 years ago to fill the gap between geologic characterization and engineering design. It combines many years of geologic studies in underground coal min

    Jan 5, 2007

  • NIOSH
    Recent Developments In Coal Mining Safety In The United States

    By R. G. Gürtunca, J. A. Breslin

    This paper briefly describes the progress in mine safety in the United States, with emphasis on recent events that have followed since the explosion at the Sago Mine in January 2006. Legislation follo

  • NIOSH
    OFR-125-85 Development Of Modular Irrigation Systems For Reclaimed Strip Mined Lands Incorporating Mycorrhiza Inoculations Trials

    By A. Uiga

    The U.S. Bureau of Mines funded a project which addressed objectives concerning irrigation of native plants and inoculation of native plants with vesicular-arbuscular mycorrhizal (VAM) fungi. The spec

    Jan 1, 1984

  • NIOSH
    RI 9667 - Effectiveness Of Selected Diesel Particulate Matter Control Technologies For Underground Mining Applications: Isolated Zone Study, 2003

    By James D. Noll, Jon A. Hummer, Shawn E. Vanderslice, Aleksandar D. Bugarski, George H. Jr. Schnakenberg, Steven E. Mischler, Larry D. Patts

    The National Institute for Occupational Safety and Health designed and conducted a study in an underground metal mine to assess the effects of selected diesel emissions control technologies on the con

    Jan 5, 2006

  • NIOSH
    Design And Instrumentation Of A Large Reverberation Chamber

    By Roy C. Bartholomae, Jeffrey Shawn Peterson

    1. INTRODUCTION In the early 1980s, the U.S. Department of the Interior’s Bureau of Mines Pittsburgh Research Center required that a large reverberation acoustic facility be constructed. This faci

  • NIOSH
    "Advance And Relieve" Mining, A Method To Mitigate The Affects Of High Horizontal Stress On The Mine Roof

    By D. R. Dollnar

    At a mine in central PA, high horizontal stresses have caused long running roof falls resulting in hazardous conditions for the miners and the premature abandonment of panels. Because of these conditi

    Jan 1, 2002

  • NIOSH
    The Mineral Industry Of Other Areas Of Africa - Bénin

    The mineral industry of Benin contributed less than 1% of the 1977 gross domestic product (GDP), which was estimated at $500 million.' Other than limestone and salt, no exploitable mineral deposi

    Jan 1, 1981

  • NIOSH
    IC 7985 Open-Pit Copper Mining Methods And Practices, Copper Cities Division, Miami Copper Co., Gila County, Ariz. ? Summary

    By W. R. Hardwick

    This paper describes open-pit mining methods and practices at Copper Cities Division of Miami Copper Co, in Gila County, Ariz. It is one of a series being prepared by the Burea of Mines on mining meth

    Jan 1, 1960

  • NIOSH
    RI 3218 Volatilization of Impurities from Zinc Concentrates

    By G. L. Oldwright, F. K. Shelton, W. E. Keck

    "INTRODUCTION Zinc must be of high grade to satisfy the present demand. Even when the amount of premium paid is small, the purer metal as the buyers' preference. The following specifications for spelt

    Jun 1, 1933

  • NIOSH
    OFR-47(11)-83 Ecological Studies On The Revegetation Process Of Surface Coal Mined Areas In North Dakota - 11. Effect Of Amendments On Soil-Plant-Nutrient Relations Under Controlled Conditions

    By N. Malakondaiah

    Several growth chamber and laboratory experiments were conducted to study the germination behavior of plant species on mine spoils and plant growth responses to nutrients on spoils and topsoils. Expe

    Jan 1, 1982

  • NIOSH
    The Mineral Industry Of Other Central African Countries - Cameroon (6089e9db-3773-45d3-834e-8b665a9a917e)

    By Thomas O. Glover

    Cameroon continued to enjoy sustained economic growth that began with its independence in 1960. Growth in the gross domestic product (GDP) averaged 2.8% per year during the 1960's and the first h

    Jan 1, 1988