Coal age

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  Año 2009, Vol. 114, Número 3

  • FEATURE ARTICLES

    • Smarter shovels dig and load more efficiently

      Steve Fiscor (ed. lit.)

      págs. 20-24

      

    • Striving for safety excellence

      Tony Bumbico

      págs. 26-33

      

    • After record sales and production, international met markets plummet

      Lee Buchsbaum

      págs. 34-38

      

    • U.S. Army Corps of Engineers Section 404

      Thomas R. Johnston

      págs. 40-42

      

    • New coal dewatering technology turns sludge to powder

      pág. 44