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This paper presents a review of the results of a series of recent research studies that have explored the use of mathematical methods to determine the optimum design of primary mine ventilation systems relative to fan power costs. Keywords: mine ventilation
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Aug 19, 2021The company has 200,000 staffs and 800,000 staffs' family members. It simultaneously develops coal, electricity, coal chemical, metallurgy, machinery manufacturing, building material and real estate, logistics and cultural tourism eight industries. Datong Coal Mine Group Co.,Ltd. was ranked the 430th place in the Fortune 500 companies 2021.
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Feb 01, 2021The use of mining machinery and equipment, according to the statistics, led to 4 accidents of which 1 was fatal, which is located at the intersection of categories F2: Unlikely and severity and C3: Serious Accident. It is determined that they can be presented no personal harm and single fatality and several injuries.
Jul 19, 202105 August 2021. US-led team of rail innovators starts work on LA Metro's Sepulveda Transit Corridor Project. Sepulveda Transit Corridor Partners, a US-led team comprising Bechtel, Meridiam Infrastructure and American Triple I Partners, will start developing an innovative and transformative solution for the Sepulveda Transit Corridor Project.
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