Shovel performance: AC vs. DC
Eric N. Berkhimer
págs. 22-28
Series arcing and sensitive short circuit protection
págs. 30-32
Evaporative dewatering solution flows smoothly-with the right pump choice
Danny Sanders
págs. 34-37
While canadian terminals expand export capacities, many U.S. producers are still going to be short of space
Lee Buchsbaum
págs. 38-45
Poland's Bogdanka mine sets production record
págs. 46-47
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