نتایج جستجو برای: mining coal mining
تعداد نتایج: 114364 فیلتر نتایج به سال:
Hongzhi Wang 1, Dongsheng Zhang 2,*, Xufeng Wang 1 and Wei Zhang 3 1 School of Mines, China University of Mining and Technology, Xuzhou 221116, China; [email protected] (H.W.); [email protected] (X.W.) 2 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China 3 IoT Perception Mine Research Center, National and Local Joint ...
Coal mining remains a dangerous occupation worldwide, and in China where this industry is strategically important for the country’s economic development, its safety track record is particularly gruesome. Between 1990 and 1999, thousands of small and large-scale accidents in Chinese underground coalmines have caused over a reported sixty thousand fatalities. To tackle this significant problem, s...
The presence of ground subsidence near abandoned coal mine areas can be hazardous to people and property because of its tendency to happen without warning. The prognostication has recently become a serious social problem in Korea, since almost all underground coal mines have been abandoned, and few remain since 1989. However, the effort of scientifically assessment of susceptible ground subside...
PROBLEM Mining in the United States remains one of the most hazardous industries, despite significant reductions in fatal injury rates over the last century. Coal mine fatality rates, for example, have dropped almost a thousand-fold since their peak in 1908. While incidence rates are very important indicators, lost worktime measures offer an alternative metric for evaluating job safety and heal...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید