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  • SME
    The Use Of Computers At Newmont's Corporate Office

    By J. R. Parry

    Over the past several years, computerized financial models have been an important part of Newmont's strategic planning process. Two applications will be discussed in this paper: a general purpose

    Jan 1, 1989

  • SME
    Intermediate Booster Drives Aid Longwall Mining

    By Robert J. Wise

    The mine plan for an underground longwall mine plan usually requires a longwall panel conveyor that begins operation at its maximum length and gradually shortens over the life of the panel. Current mi

    Jan 1, 1993

  • SME
    Tunnel Construction For The Sao Paulo Subway

    By Luiz Roberto Amaral, Peter Frobenius

    Construction of the first phase of the Sao Paulo Metro, the North-South Line, will be completed late in 1974. The downtown section of this line consists of 2.2 miles of 19.6-foot diameter soft ground

    Jan 1, 1974

  • SME
    Mechanical Heading Of The Walgau Headrace Tunnel In Austria

    By Eckart Schneider

    PROJECT The Walgautunnel is the heart of a new hydro scheme in Western Austria, which is supposed to go into operation in 1984. With it's length of 21,4 km, a bored diameter of 6,25 m and an i

    Jan 1, 1983

  • SME
    The Taxation of Iron Ore in Minnesota

    By Duluth Engineers' Club, Engineers' Club of Northern Minnesota

    "Iron ore in Minnesota probably carries a heavier tax burden than any mineral in any other place in the world. The State Tax Commission, created in 1907, originated the system, and with the assistance

    Jan 1, 1920

  • SME
    Mining : The Decade Begins With a Difficult Year

    By M. J. Garcia, Howard Hallman, G. M. T. Marshall, Ken Higby, Louis Cope, Robert S. Hess, John Peters, A. G. Law, William C. Larson

    After a good year in 1979-strong mineral demand, adequate prices for most metals, minimal labor problems-1980 was not so good. The US produced $24.8 billion worth of nonfuel minerals last year, up 3.5

    Jan 5, 1981

  • SME
    Through The Eyes Of An Educator (a6e1ef06-7699-4887-b17e-952e8e976a18)

    By Guy T. McBride

    Mr. Chairman, Fellow Keynoters, Ladies, and Gentlemen: It is purposed to consider the theme of this meeting, "The 1970's - Pivotal Decade for the Mineral Industries," from the particular -- some

    Jan 1, 1972

  • SME
    Excavation Of Bear Swamp Underground Powerhouse

    By James J. Brady

    The basic story at Bear Swamp was how to excavate an underground chamber 79 feet wide by 227 feet long and 150 feet high, along with the related access, tarbrace, leads, power tunnels and shafts, do i

    Jan 1, 1974

  • SME
    Roll-Press Briquetting Can Help Lime Producers Improve Materials Handling

    By Richard Komarek

    When limestone (Ca03) is calcined in rotary kilns to produce quicklime (CaO), it is not unusual for 10% to 20% of the stone to abrade and emerge from the kiln as quicklime fines (-6.3 mm or -0.25 in.)

    Jan 1, 1993

  • SME
    Mixed Face Tunneling In Urban Setting

    By Drupad B. Desai, C. C. Ku

    INTRODUCTION The Laurens Street section of the Northwest Line of the Baltimore Region Rapid Transit System, located along Pennsylvania Avenue between Pitcher Street and North Avenue is situated in

    Jan 1, 1981

  • SME
    The Effective Integration of Microcomputers into Mine Safety Training Programs

    By Ashis Bhattacherjee, Subrata Chatterjee, Michael T. Dewey, Christopher J. Bise

    In order to continue the advancements made during the past two decades in the reduction of the severity of accidents and injuries in underground coal mining, closer attention will have to be paid to t

    Jan 1, 1992

  • SME
    Maintenance Scheduling and Management

    By John W. Rushton

    THE PLANNED MAINTENANCE PROGRAM All concentrators should start with a planned maintenance program from day one. Every- body thinks they have a program in place before start-up, but in reality, most

    Jan 1, 1986

  • SME
    Fe-Mn Oxide Coating Vs. -80 Mesh Alluvium In Stream Sediment Geochemical Surveys

    By Robert H. Carpenter

    Downstream dispersion curves for certain trace metals were obtained from two mineralized areas in the southeastern U. S. In Lincoln Co., Georgia, 7 sample sets were collected downstream from the Magru

    Jan 1, 1975

  • SME
    Clays – A Review of 1992 Activities

    By K. L. Kayler

    Ball clay production in 1991 amounted to about 800 kt (880,000 st), about the same as in 1990. 1992 estimates show a 5% decrease to 750 kt (827,000 st). This decrease continued a trend of reduced prod

    Jan 1, 1993

  • SME
    Status of Advanced Coal Cleaning As a Compliance Technology

    By William P. Barnett

    In 1988, the US Department of Energy's (DOE) Pittsburgh Energy Technology Center identified three coal cleaning options for achieving flexible environmental control strategies aimed at reducing e

    Jan 1, 1992

  • SME
    A New Utilization Option For Coal Fines

    By Joseph Renk, David Akers, Glenn Shirey

    Each year, US coal cleaning plants landfill or impound millions of tons of high-quality, fine-sized coal. This coal is not only difficult and expensive to capture during cleaning, but, if captured, ca

    Jan 1, 2005

  • SME
    Bioleaching of Sulfide Concentrates and Ores: Study of Refractory Gold and Non-Ferrous Base Metals Ores

    By Pierre Ollivier, Dominique Morin

    A general study of gold refractory arsenopyrite pyrite concentrate bioleaching has been carried out including two continuous bioleach testworks at different sizes, namely one at a laboratory scale wit

    Jan 1, 1990

  • SME
    New Techniques In Deep Pre-Sinking Of Mine Shafts

    By Cyril Heever

    ROCKS outcropping in Elandsrand's lease area consist of quartzite, shale and lava of the Pretoria group and are underlain first by 1 300 metres of dolomite and then by the Black Reef series. This

    Jan 1, 1981

  • SME
    Discussion – Control of coal mine bursts K. Y. Haramy, J. P. McDonnell, and L. A. Beckett Technical Papers, MINING ENGINEERING, Vol. 40, No. 4 April 1988, pp. 263-267

    By G. Bräuner

    The methods of burst control treated in the authors' very informative paper have been applied in the Ruhr Coalfield, Germany, for more than 20 years and have proved to be highly effective. It mig

    Jan 1, 1989

  • SME
    Acid Rain – An Example of Environmental Epistemology

    By Edward C. Krug

    "You are to use the word ... purely for its selling power. It is a name they venerate. As a result, you can use the word ... to ... get [them] to practice, not only without shame bit with a positive g

    Jan 1, 1992