Results 141 to 150 of about 8,734 (226)

Characteristics of overburden failure and evolution of fractures in fully mechanized top coal mining face. [PDF]

Sci Rep
Wang X, Liu F.
europepmc   +1 more source

Structural model of hard overburden shell in thick coal seam and its application. [PDF]

Sci Rep
Fu X, Zeng L, Rong H, Zhang H, Liu T, Song J.   +5 more
europepmc   +1 more source

Patterns and security technologies for co-extraction of coal and gas in deep mines without entry pillars [PDF]

, 2015

core   +1 more source

Research on the active sealing and promoting extraction technology of high-gas mine working face return air corner gas. [PDF]

Sci Rep
Sun B, Gong X, Fan X, Cheng X, Yang P, Xiao L, Cheng C, Ma X.   +7 more
europepmc   +1 more source

Research on the predicted height of water-conducting fracture zones based on the BO-RFR model and SHAP analysis. [PDF]

Sci Rep
Qiu M, Wen Y, Teng C, Shi M.
europepmc   +1 more source

Catch Me If You Can: Education and Catch-up in the Industrial Revolution [PDF]

Existing evidence, mostly from British textile industries, rejects the importance of formal education for the Industrial Revolution. We provide new evidence from Prussia, a technological follower, where early-19th-century institutional reforms created ...
Erik Hornung, Ludger Woessmann, Sascha O. Becker   +2 more
core  

Study on crack propagation law of overlying strata in the process of small coal pillar mining in inclined extra-thick coal seam. [PDF]

Sci Rep
Lu W, Zhao P, Jin Q, Jin H, Li S, Bai J.
europepmc   +1 more source

Study on Air Leakage Law and Coal Spontaneous Combustion Danger Area in Goaf of Ultra-Long Fully Mechanized Mining Faces with Large Mining Height. [PDF]

ACS Omega
Yuan G, Ma L, Sun J, Zhang P, Chen R, Pei G, Ma W.   +6 more
europepmc   +1 more source

Theory and practice of integrated coal production and gas extraction [PDF]

, 2015
Liang Yuan
core   +1 more source

Effects of particle size and moisture on respirable coal dust generation in pakistan's informal bituminous mines. [PDF]

Sci Rep
Khan S, Song Z.
europepmc   +1 more source