Results 91 to 100 of about 26,083,278 (347)
Meitan xuebaoCoal seam water injection is widely used for coal seam gas control, and the key to its effectiveness in controlling gas lies in the wetting effect of water on coal body.
Jiwei YUE +7 more
doaj +1 more source
Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices
Advanced Science, EarlyView.Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen +9 more
wiley +1 more source
Database management and implementation for coal fire detection and monitoring in the Ruijgou Coalfield, Northwest China [PDF]
, 1999 Coal fire monitoring by aerospace remote sensing and GIS techniques is an advanced approach, which has been implemented in the Rujigou coalfield, northwest China.
Genderen, J. L. van +2 more
core
Toward a global coal mining moratorium? A comparative analysis of coal mining policies in the USA, China, India and Australia [PDF]
, 2018 To stop global warming at well below 2° C, the bulk of the world’s fossil fuel reserves will have to be left in the ground. Coal is the fossil fuel with the greatest proportion that cannot be used, and various advocacy groups are campaigning for a ban on
Blondeel, Mathieu, Van de Graaf, Thijs
core +1 more source
Advanced Science, EarlyView.This study elucidates how steric hindrance in amines creates a dual effect in CO2 capture: it thermodynamically favors the reaction by shifting the pathway from carbamate to alkyl carbonate formation, increasing capacity and lowering regeneration heat, while simultaneously slightly slowing the kinetics.
Xiaoyi Gao +8 more
wiley +1 more source
Identification and mapping of coal refuse banks and other targets in the anthracite region [PDF]
ERTS-1 MSS data covering parts of Pennsylvania's southern and eastern middle anthracite coal fields were studied to determine how well accumulations of coal refuse could be identified and mapped by computer analysis and processing. Spectral signatures of
Borden, F. Y. +2 more
core +1 more source
A moving baseline for evaluation of advanced coal extraction systems [PDF]
, 1981 Results from the initial effort to establish baseline economic performance comparators for a program whose intent is to define, develop, and demonstrate advanced systems suitable for coal resource extraction beyond the year 2000 are reported.
Bickerton, C. R., Westerfield, M. D.
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Study of the multi-index coupling forecasting model of coal and gas outburst and its application
工程科学学报, 2018 Coal and gas outburst seriously threatens the safety of underground coal mining. With the increase in coal mining depth, the geological conditions of coal mines become complicated, which adversely affects the safety of coal mining production.
ZHANG You-yi +2 more
doaj +1 more source
Advanced Science, EarlyView.In this study, FeCoNiCuPt high‐entropy alloy particles (HEA) are loaded onto protonated g‐C3N4 nanosheets (HCN NSs) to construct HEA/HCN composites through an electrostatic self‐assembly method. Protonation treatment enriches the surface of g‐C3N4 nanosheets with abundant active sites and enhances their interfacial charge separation capability ...
Yunzhu Zang +3 more
wiley +1 more source
Technological safety of sustainable development of coal enterprises [PDF]
, 2017 Purpose. Substantiation of conceptual base of searching the ways of threats prevention to sustainable development of coal enterprises in the presence of multidirectional vectors of economic pressure of the external environment. Methods.
Bondarenko, V +3 more
core +2 more sources