Historical Summary of Coal Mine Explosions in the United States, 1959-81 This Bureau of Mines publication presents investigators' reports of all major coal mine explosion disasters that occurred in the United States from 1959 th... JK Richmond - 《Pittsburgh Pa U.s.department of the Interior Bu...
Office of Surface Mining, Reclamation and Enforcement due to subsidence and flooding from abandoned coal mines (AML) brought by gulf hurricanes in Pennsylvania, as of November 2004. Strategy used by emergency crews in dealing with a hole that threatened the rear of the house of a resident; ...
Historical Summary of Coal Mine Explosions in the United States, 1959-81 This Bureau of Mines publication presents investigators' reports of all major coal mine explosion disasters that occurred in the United States from 1959 th... JK Richmond - 《Pittsburgh Pa U.s.department of the Interior Bu...
Major topics considered, in addition to project progress, included: establishment of a five train coal conversion plant; use of private industry economics for economic analysis; relative quantities of coal to be transported by barge and rail from regional coal mines to a remote coal conversion ...
In this study, province-level CH4 EFs from coal mining in China were developed based on the data analysis of coal production and corresponding discharged CH4 emissions from 787 coal mines distributed in 25 provinces with different geological and operation conditions. Results show that the spatial ...
It is now over twenty years since the first 3D seismic experiment was carried out in coal mines in China. However, how to enhance the resolution for detect... TONGJUN CHEN,ENRU LIU,RUOFEI CUI - 《Journal of Seismic Exploration》 被引量: 0发表: 2007年 Integration of 3D-seismic and petro...
17613/58. Class 20(2) A mine roof support, for use adjacent to the working face, is of square or rhombus form latticework, in which each member is a girder of twice the length of unit lattice-spacing. One form of girder described is of hollow rectangular form, Fig. 1, and carries ...
Since 1979, Rosebud Mining Company has actively produced high-quality bituminous coal, both metallurgical and steam qualities, from mines located in Western Pennsylvania and Ohio.
We present our results of experiments concerning the methane threats prediction in coal mines obtained during IJCRS'15 Data Challenge. The data mining competition task poses the problem of active monitoring and early threats detection wh... Herrin,D. - 《Oral History Review》 被引量: 0发表: 19...
R. Development of soils and communities of plants and arbuscular mycorrhizal fungi on West Virginia surface mines. Environ Manage. 54(5), 1153–1162, doi: 10.1007/s00267-014-0365-0 (2014). 6. Sinha, S. et al. Rhizosphere soil microbial index of tree species in a coal mining ecosystem....