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  • IMPC
    Reflections on R&D-led industrial development in establishing a SA Ti metal powder industry

    By Ofra Damm, v du Preez, D. van Vuuren, L. Simpson, H. Chikwanda

    "South Africa is the world?s second largest producer of titanium bearing minerals, but apart from producing titanium mineral concentrate to form TiO2 slag, little further value is added in South Afric

    Jan 1, 2014

  • NIOSH
    Mineral Commodity Summaries 1986 - An Up-To-Date Summary Of 87 Nonfuel Mineral Commodities - Significant Events In The Nonfuel Mineral Industry In 1985

    The value of domestic raw nonfuel mineral output in 1985 was estimated at $23.7 billion, 2% above the 1984 value of $23.1 billion. This crude mineral output was the basis for approximately $244 billio

    Jan 1, 1986

  • NIOSH
    Contributions To The Data On Theoretical Metallurgy ? VIII. The Thermodynamic Properties Of Metal Carbides And Nitrides - Introduction

    By K. K. Kelley

    The collection and correlation of thermodynamic data concerning substances of metallurgical interest have constituted one of the major activities of the Pacific Experiment Station of the Bureau of Min

    Jan 1, 1937

  • SME
    Mineral Economics

    By Michael Rieber

    Mineral economics interfaces the mineral sciences and engineering with finance and economics in the analysis of appropriate questions facing the minerals and energy industries. Its practitioners inclu

    Jan 1, 2008

  • NIOSH
    OFR-133A(1)-77 Longwall-Caving Mining Method For Thick Coal - Design And Feasibility Study - Final Report, Volume I

    By M. G. Wallis

    This report presents the results of a study to develop a detailed mining method design based on longwall mining with sublevel caving. The method is applicable to low-dipping coal seams 20 or more feet

    Jan 1, 1977

  • NIOSH
    First-Quarter 1987 Economic Activity - First Quarter 1987

    By Keith L. Harris

    Surprisingly, real gross national product (GNP) surged at a seasonally adjusted annual rate of 4.3% for the first quarter of 1987 according to preliminary estimates made by the Department of Commerce,

    Jan 1, 1987

  • SME
    Longwall Mining In America (f89fdb53-aac0-4b35-861d-c15df395bb25)

    By Joseph Kuti

    Longwall mining is the term used for the underground extraction of a wide and deep panel of coal. Such a panel may be blocked out by one or more entries on either side ("head" and "tail") of a longwal

    Jan 1, 1978

  • SAIMM
    Slope unit based 3D landslide hazard mapping system

    By Y. Mitani, M. Xie, G. Zhou, T. Esaki

    The assessment of landslide instability and risk has become a topic of major interest for both geoscientists and engineering professionals as well as for local communities and administrations in many

    Jan 1, 2003

  • AIME
    The Constitution Of Copper-Iron And Copper-Lead-Iron Mattes.*

    By Ivan E. Goodner, Charles H. Fulton

    THE subject of the constitution of copper-iron mattes has received considerable attention in recent years by Keller,1 Bolles,2 Hofman,3 and Gibb and Philp.4 Still more recently Friedrich, Röntgen, Wie

    Nov 1, 1908

  • NIOSH
    OFR-4(1)-72 Industrial Engineering Study Of Hazards Associated With Underground Coal Mine Production - Volume I - Analysis Of Underground Hazards And Fatal Accidents

    In 1970, the U. S. Bureau of Mines contracted with Theodore Barry and Associates, a management consulting firm, to perform a one-year industrial engineering study of working-face hazards in undergroun

    Jan 1, 1971

  • NIOSH
    OFR-32-81 Electromagnetic Fields In Mine Environments

    By James R. Wait

    The present final report constitutes the total productivity of a series of contracts from the U.S. Bureau of Mines and the Institute for Telecommunication Sciences over the period 1971-1979. The empha

    Jan 1, 1980

  • NIOSH
    Identification Of Distillable Paraffins, Olefins, Aromatic Hydrocarbons, And Neutral Heterocyclics From A Low-Temperature Bituminous Coal Tar

    By Clarence Karr

    AN EXTENSIVE characterization was conducted on the neutral oil components in a low-temperature bituminous coal tar. A total of tai individual compounds identified with respect to individual isomers, a

    Jan 1, 1967

  • NIOSH
    RI 3233 The Occurrence of Gases In Coals (309cd25a-d5a0-492f-b9e8-8c724ed5558b)

    By George S. Rice

    "The emission of hydrocarbon gases from coal beds and contiguous strata causes many accidents in coal—mine workings, the number of fatalities so caused being second only to those due to falls of roof.

    Jun 1, 1934

  • NIOSH
    RI 6636 Stainless Steel Gadolinium Alloys

    By M. Copeland

    Phase relations of gadolinium alloyed, up to 40 weight-percent (wt pct), with AISI 304-type stainless steel were established. Body-and face-centered cubic iron-rich solid solution phases and several i

    Jan 1, 1965

  • SME
    Incline/Decline Boring With Tunnel Boring Machines

    By Jack E. Brockway

    As tunnel boring machine technology has expanded, so has its range of application. Tunneling machines (TBM's) are tackling tasks today that fifteen years ago were considered "inappropriate". A ca

    Jan 1, 1983

  • CIM
    Symposium on Powder Metallurgy

    By Nicholas J. Grant

    It is the purpose of this paper to examine a number of the recent developments in powder metallurgy, being most concerned with those which are yet to prove themselves rather than those which have achi

    Jan 1, 1965

  • NIOSH
    Bulletin 233 Protection of Oil and Gas Field Equipment Against Corrosion

    By R. Van A. Mills

    Rapid deterioration and destruction of metal equipment in oil and gas fields cause waste of resources and financial losses that must be lessened or eliminated if operations in many important fields ar

    Jan 1, 1925

  • AIME
    Notes On Titanium And On The Cleansing Effect Of Titanium On Cast-Iron.

    By Bradley Stoughton

    (Cleveland Meeting, October, 1912.) [SECRETARY'S NOTE.-To avoid repetition of foot-notes, references to authorities are made in this paper by means of figures, referring to a numbered list in th

    Nov 1, 1912

  • ABM
    Propriedades Mecânicas A Altas Temperaturas De Ferros Fundidos Cinzentos Aplicados A Cabeçotes De Motor A Diesel

    By Heloíza Döering Gasparin

    Os efeitos de elevadas temperaturas e do tempo de exposição sobre as propriedades mecânicas de um ferro fundido cinzento hipoeutético foram avaliados em amostras de dois ferros fundidos da classe FC30

    Aug 7, 2018

  • NIOSH
    Development Of The Bureau Of Mines Gas-Combustion Oil-Shale Retorting Process

    By Arthur Matzick

    [1-1 1y IilJLJ,I~X" K pl.rw~~ts rt1s11l s I'I.IIIII 1.c1sc.n rcnlb cind d(~\,elopmrnt rnr- ried oitt by tllc* Illll.cv111 of .\li~~css (111 rlrc. ~ns-c-o~l~l)i~s~io~l oil-sllnlr rcdorting proc-rs

    Jan 1, 1966