Results 61 to 70 of about 1,774,538 (199)
The case for coal: India’s energy trilemma
, 2015 The International Energy Agency (IEA) has estimated that 304 million people in India are without access to electricity. Unsurprisingly, in a speech earlier this year, Piyush Goyal, Minister of State for Power, Coal
World Coal Association
core
Meitian dizhi yu kantanBackgroundThe method of supporting roadways using small coal pillars has been widely applied in China. As a result, the stability of goaf-side coal pillars affects mining safety.
Weitao LIU +4 more
doaj +1 more source
Scientific ReportsA single load compression test of rock-coal-rock assemblages (RCRs) containing coal bodies with different inclinations was carried out with the research background of mining deep, large-steep coal seams. It was found that the larger the inclination angle of the coal body in the RCR samples, the larger the compaction stage of the samples and the smaller
Xuanhong Du +12 more
openaire +3 more sources
EnergiesCoal mine underground reservoirs play a significant role in energy utilization while also contributing to energy security. Prolonged immersion in mine water reduces the long-term strength of coal, subsequently leading to continuous creep damage in coal ...
Xueliang Li +6 more
doaj +1 more source
, 1940 This schematic shows the standard plan of a cast iron bearing box for a 60-inch wicket. New and repair work on the section of casting is shown. It belongs to the Office of Corporate Engineering and Real Estate Agreement of the Lehigh Coal and Navigation ...
core
Lehigh Coal and Navigation Company Records - Item 1112: Repair Boxes for Wickets
, 1908 Full date of drawing: March 12, 1908. This schematic shows the repair boxes for wickets of the Canal Department of the Lehigh Coal & Navigation ...
core
An experimental study on the synergic damage of chemical solutions and stress to coal
Scientific ReportsThis paper investigates the impact of treatment with chemical solutions of varying pH values on the micro-macroscopic damage in coal samples under load, employing a combination of Small Angle X-ray Scattering (SAXS) experiments and uniaxial compression tests.
Yaoyu Shi +7 more
openaire +3 more sources
Lehigh Coal and Navigation Company Records - Item 2286: Plan of Sea Barges
, 1911 Full date of technical drawing: November 24, 1911. This schematic shows the general plan of the Lehigh Coal and Navigation Company\u27s sea barges showing bin capacities and ...
core
Creep acoustic emission and fractal characteristics of coal rock under high temperature pre-damage
, 2020 The thermal damage and triaxial creep acoustic emission experiments of coal samples at different temperatures were carried out to investigate and analyze the mechanical characteristics of coal and rock after high temperature pre-damage. The results show
Hongcai, SHI
core +1 more source
Applied SciencesIn order to reveal the failure characteristics and burst tendency of coal after microwave irradiation, the microstructure damage effect of microwave irradiation on coal was explored.
Chuanhong Ding +5 more
doaj +1 more source