Results 131 to 140 of about 139,565 (215)

Reasonable drilling angle and technology application for pre-cracking thick-hard roofs before driving gob-side roadways in ultra-thick seams. [PDF]

Sci Rep
He F, Wu Y, Wang D, Zhang J, Tao K.
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

Energy requirement for the production of silicon solar arrays [PDF]

Photovoltaics is subject of an extensive technology assessment in terms of its net energy potential as an alternate energy source. Reduction of quartzite pebbles, refinement, crystal growth, cell processing and panel building are evaluated for energy ...
Lindmayer, J., Morrison, A. D., Scheinne, A., Wihl, M.   +3 more
core   +1 more source

Analysis and control of gas blowout accidents in working faces beneath thick magmatic rock. [PDF]

Sci Rep
Ma S, Su Y, Wang X, Guo B, Zhang S, Li H.   +5 more
europepmc   +1 more source

Disaster causing mechanism and monitoring of dynamic and static load coupling of deep multi layer hard roof. [PDF]

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

Study on the influence of periodic roof fracturing on the mechanical disturbance characteristics of coal and gas outburst behavior in the mining face. [PDF]

PLoS One
Zhang C, Chen Z, Wu X, Ma J, Chen J.
europepmc   +1 more source

Sustainable Architecture [PDF]

, 2015
Bothwell, Keith
core  

Progressive damage mechanism and multiscale characterization of hard sandstone-coal composite structures under loading. [PDF]

PLoS One
Dang J, Tu M, Zhang X, Bu Q.
europepmc   +1 more source

Study on the mechanism and prevention techniques of dynamic disaster in nearly vertical extra-thick coal seams. [PDF]

Sci Rep
Zhang Y, Li Q, Li L, Zhang J, Liu C, Yue H.   +5 more
europepmc   +1 more source

073126 - Slate Shingles [PDF]

, 2013
Weatherbee, Stephanie
core   +1 more source