Results 101 to 110 of about 1,774,538 (199)

Study on vibration characteristics of shearer spiral drum and fatigue life prediction of cutting unit housing under multi-factor coupling. [PDF]

PLoS One
Wang Y, Jia B, Ge C, Lin G, Zhao L, Yu J, Liu X.   +6 more
europepmc   +1 more source

A Review of Instability Mechanisms and Control Technologies for Gas Drainage Boreholes in Soft Coal Seams in China. [PDF]

ACS Omega
Liu H, Chen X, Li J, Wang L, Yang Z, Yu J.   +5 more
europepmc   +1 more source

Stress-damage-flow coupling model and its application to pressure relief coal bed methane in deep coal seam

, 2011
Long-distance pressure relief gas drainage technology has recently been applied in mining areas with multiple coal seams of low permeability in China.
Yu, QX (15554204), Tang, CA (15530036), Yang, TH (15530051), Xu, T (15554198), Hongyuan Liu (14742565), Shi, BM (15554201)   +5 more
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Evolution and Deterioration Mechanism of the Mechanical Behavior of Gas-Bearing Coal under Low-Amplitude Cyclic Impact Load. [PDF]

ACS Omega
Hu J, Liu K, Yu Y.
europepmc   +1 more source

Study on fractal characteristics of creep damage in broken coal gangue with different particle size groups based on SEM scanning and digital image technology. [PDF]

Sci Prog
Gao M, Guo Z, Chen L, Hu Z, Li M, Bu C, Guo C.   +6 more
europepmc   +1 more source

Damage characteristics and constitutive modeling of coal under real-time temperatures. [PDF]

PLoS One
Yu Y, Liu N, Zhang G, Liu J, Wei J.
europepmc   +1 more source

Lehigh Coal and Navigation Company Records - Item 381: Detail of Coupling for Shaft and Stem, 26-Inch Wicket

, 1910
This schematic shows the detail plan of the coupling for a shaft & stem, 26" wicket. The material of construction is cast iron. The drawing shows dimensions of the finished work.

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Damage-Failure Characteristics and Energy Evolution Laws of Reservoir Rock with Irregular Hydraulic Borehole under Uniaxial Compression. [PDF]

ACS Omega
Wang L, Xiao S, Ding J.
europepmc   +1 more source

Evolution Characteristics of Coal Fractures under High-Temperature Coupling with Triaxial Stress. [PDF]

ACS Omega
Wang L, Liu X, Xu Y, Wang W, Zeng Q, Xin H.   +5 more
europepmc   +1 more source

Report of the Inspector of Coal Mines, State of Kansas, from ...

Report year ends June 30.Report for 1903/1904 covers period from Jan. 1, 1903 to June 30 1904.Mode of access: Internet.Continued by: Kansas. Mine Inspection Dept.
Kansas. State Inspector of Coal Mines.
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