Coal contractor mining facts - 2008 [PDF]
"An independent contractor is defined by the Mine Safety and Health Administration (MSHA) as "any person, partnership, corporation, subsidiary of a corporation, firm, association or other organization that contracts to perform services or construction at
core
Research on Synergistic Permeability Enhancement Technology of Staged Fracturing Acidification in Low-Permeability Coal Reservoirs. [PDF]
Ni L, Xue S, Tu Q.
europepmc +1 more source
Mechanisms of Mining-Induced Surface Hazards Beneath Steep Ridge-Type Mountain Geometry. [PDF]
Song G, Yao X, Tian X, Zhou Z, Chen X.
europepmc +1 more source
Vision-Based Detection of Large Coal Fragments in Fully Mechanized Mining Faces Using Adaptive Weighted Attention and Transfer Learning. [PDF]
Wang Y, Lei J, Li L, Lu Z, Xu L, Zhao S.
europepmc +1 more source
Dynamic Die-Forging Scene Semantic Segmentation via Point Cloud-BEV Feature Fusion with Star Encoding. [PDF]
Feng X +7 more
europepmc +1 more source
Color Image Encryption Based on 3D-SBFCM with Dynamic Rectangular Partitioning and Dynamic S-Box Substitution. [PDF]
Wang T, Yang X, Ge B, Xia C, Wu H.
europepmc +1 more source
Research on deformation characteristics and mechanisms of an open pit coal mine landslide event in extremely cold region. [PDF]
Du H, Wan Y, Wang D, Cao B, Liu G.
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Research on active advance support technology of mining roadway under hard roof condition. [PDF]
Li Y +5 more
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Multi-scale soil moisture dynamics in arid mined Loess Plateau arise from crack evolution and microstructure collapse. [PDF]
Ma T, Tang F, Zhang F.
europepmc +1 more source
Digital Twin of Coal Mine Rescue Robot-Research on Intelligence and Visualization. [PDF]
You S, Li M, Wu B, Wang J, Tang C.
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