Results 211 to 220 of about 353,530 (338)

Study on the Heat Transfer Law of Coal Spontaneous Combustion in Open‐Pit Mining Benches Under Varying Wind Speeds

Energy Science &Engineering, EarlyView.
ABSTRACT The influence of external wind speed is critical for determining the spatial distribution of self‐heating zones within open‐pit mining benches. This study initially establishes the critical temperature required for the spontaneous combustion of the 13# coal seam at the Hequ Open‐Pit Mine.
Hongze Zhao, Jianjun Ren, Hong Wei, Zhiqiang Zhang   +3 more
wiley   +1 more source

Effects of underground coal mining disturbance on bacterial community diversity and its assembly processes. [PDF]

PLoS One
Wang F, Zhang Z, Lu Z, Guo J, Fu Z, Sun J.   +5 more
europepmc   +1 more source

Mechanism of Roof‐Cutting by Densely Drilled Holes in Gob‐Side Entry Retaining and Its Main Influencing Factors

Energy Science &Engineering, EarlyView.
ABSTRACT Roof‐cutting by densely drilled holes (RCDDH) has been widely adopted in many coal mines across China as an innovative roof‐cutting technique. However, research on its underlying mechanism and key parameters remains limited, particularly regarding the failure mechanisms of the drilled holes.
Shaowei Liu, Xiaopeng Li, Mengxiong Fu, Yafei He, Kun Pan, Biao Hou, Deyin He   +6 more
wiley   +1 more source

Land use impacts on soil aggregate associated organic carbon in reclaimed coal mining subsidence areas: mechanisms and implications. [PDF]

Sci Rep
Qu J, Jiang N, Dai Y, Yang Y, Ning Y, Wang K, Chen F, Huang J, Tan M.   +8 more
europepmc   +1 more source

Quantitative Identification and Distribution Pattern of Macrolithotype of Coal in Deep Coal Seams of the Daji Block

Energy Science &Engineering, EarlyView.
ABSTRACT The construction of a logging response model for macrolithotypes in coal has been successfully completed. This model has enabled delineation of vertical and planar distribution patterns of coal macrolithotypes within the #5 and #8 coal seams of the Daji block, as well as to forecast the distribution of favorable reservoir conditions.
Wei Zhang, Liheng Bian, Mingqing Hu, Peng Wu, Tim A. Moore, Jian Shen   +5 more
wiley   +1 more source

Indexical methods assessing PTEs distribution in Mahan river command area, central India's coal mining zone. [PDF]

Geochem Trans
Kumar N, Tiwari MK, Singh R, Singha S, Singha SS, Babu K P.   +5 more
europepmc   +1 more source

Preliminary analysis of the probable causes of decreased coal mining productivity (1969 to 1976). [1950 to 1976]

, 1977
David M. Walton, P.W. Kauffman
openalex   +2 more sources

Explosion Characteristics of Layered Wood Dust With High Pressure Oxygen

Energy Science &Engineering, EarlyView.
ABSTRACT Dust explosions have been extensively investigated for process safety. This study introduces an explosion mode involving layered wood dust and high‐pressure oxygen. Unlike atmospheric air conditions, layered wood dust can be triggered by weak ignition energy (60 J) in high‐pressure oxygen environments.
Ze He, Hai‐Tao Yang, Zi‐Jun Chen, Hong‐Hao Ma, Xi‐Liang Zhang, Lu‐Qing Wang, Zhao‐Wu Shen   +6 more
wiley   +1 more source

Coal mining activities driving the changes in bacterial community. [PDF]

Sci Rep
Zhang R, Xu L, Tian D, Du L, Yang F.
europepmc   +1 more source

Acid mine drainage, strip mine, control : acid mine water, strip mine, control : water pollution, acid mine drainage, control : coal, surface (strip) mining, reclamation : reclamation, coal, strip mine

, 1970

openalex   +2 more sources