Results 251 to 260 of about 359,370 (309)

Mountaintop Removal Coal Mining Contaminates Snowpack across a Broad Region. [PDF]

open access: yesEnviron Sci Technol
Cooke CA   +5 more
europepmc   +1 more source

DRA-UNet for Coal Mining Ground Surface Crack Delineation with UAV High-Resolution Images. [PDF]

open access: yesSensors (Basel)
Wang W   +8 more
europepmc   +1 more source
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Coal mine electrification

Journal of the A.I.E.E., 1925
To purchase or generate power for mine requirements is determined on basis of minimum power charge against coal production. Alternating-current transmission results in better efficiencies and lower costs. The choice of coal hoisting systems is based on reliability with cost secondary.
openaire   +1 more source

The speed, scale, and environmental and economic impacts of surface coal mining in the Mongolian Plateau

Resources, Conservation and Recycling, 2021
Jianguo Wu, Chunyang He, Xuening Fang
exaly  

Mechanized Comprehensive Coal Mining Technology of Coal Mine

Foreign Language Science and Technology Journal Database Engineering Technology, 2022
openaire   +1 more source

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