Eighty-three years after a devastating flood in the Chosei coal mine in southern Japan claimed the lives of 183 miners, a ...
A memorial event for the 183 victims of the 1942 underwater coal mine disaster in Ube, Yamaguchi Prefecture, was held on Saturday ahead of the 83rd anniversary of the tragedy. Organized by a civic ...
A fault is a main cause for water inrush in coal mines. The detection of faults plays an important role in the prevention and governance of water inrush in coal mines. It is hard to determine the ...
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5 Block coal is mined, mostly in eastern Kanawha and Clay counties. Development of the Kanawha Coal Field The Kanawha Coal Field is one of the oldest fields in West Virginia. The first commercial ...
Currently, 25 states have coal mining operations in place. The term “coal stock” refers to any company involved in coal mining, processing or burning. A company with a coal stock might be ...
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China Mine Disaster Prevention and Control-Ministry of State Key Laboratory Breeding ...
The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.