·Using the SBM Undesirable super efficiency model Tang et al 2017 analyzed the total factor productivity of China during the period 2003 2013 in the context of environmental regulation Zhang et al 2015 constructed a meta frontier slack based efficiency measure to evaluate the ecological total factor energy efficiency of China
Anvil starts commissioning HMS plant at DRC copper project TSX listed copper and silver miner Anvil Mining on Monday announced that AMCK Mining a joint venture company involving Anvil 95% and the Mining Company of
·This study has the following limitations i China has a large number of mines but this study may not fully represent the status of all surrounding areas affected by mining in China; ii the distribution of mining areas is uneven mainly concentrating on the East and Central South China while the HM data in western China Chongqing
·China boasts abundant coal reserves and extensive goafs have been formed through prolonged mining operations with an estimated volume of billion cubic meters expected by 2030 [1] With the rapid progression of China s urbanization and industrialization numerous large scale construction projects such as natural gas pipelines factories bridges
Mission To solve the world s food security needs through industry leading technological innovations and socially responsible practices Overview Origin Agritech Limited NASDAQ SEED is China s leading agricultural biotechnology company specializing in crop seed breeding and genetic improvement seed production processing distribution and related technical
·The copper Cu mining and mineral processing industry plays a vital role in economic development and job creation in addition to supplying invaluable resources for modern civilization Farjana et al 2019 Most importantly this sector must meet the growing demand for primary Cu even as society achieves greater efficiency by reducing extraneous uses reuse
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