Results 21 to 30 of about 1,442,809 (311)

Characteristics and mechanism of strong dynamic load mine pressure in large mining height full-mechanized caving face with multiple thick and hard roof

Meitan xuebao
In view of the problems of strong mine pressure such as rapid shrinkage of hydraulic support column and easy support crushing in working face under the fully mechanized caving face with large mining height in multi-layer thick and hard roof of extra ...
Zhen ZHANG, Zhizeng HUANG, GANG XU, Xiaogang LIU, Qianjin LIU, Tielin ZHAO, Xingyu LIN   +6 more
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Experimental study on mechanical and fracture-seepage characteristics of sandstone under hydro-mechanical coupling

Meikuang Anquan
In order to explore the fluid-solid coupling feedback characteristics of rock under the action of hydro-mechanical coupling, the triaxial and pore water pressure loading tests of saturated sandstone were carried out by using the rock mechanics ...
Jiawei LI, Yujun ZHANG, Jie XIAO, Youwei LI, Zhiwei ZHANG   +4 more
doaj   +1 more source

Origin of synergistic effects in bicomponent cobalt oxide-platinum catalysts for selective hydrogenation reaction

Nature Communications, 2019
The development of catalysts with high activity and selectivity for hydrogenation remains a challenge. Here the authors report cobalt oxide-platinum catalysts with increased oxygen vacancy resulting from the promoted hydrogen spillover with platinum ...
Jiankang Zhang, Zhe Gao, Sen Wang, Guofu Wang, Xiaofeng Gao, Baiyan Zhang, Shuangfeng Xing, Shichao Zhao, Yong Qin   +8 more
doaj   +1 more source

How Responsive Are EU Coal-Burning Plants to Changes in Energy Prices? [PDF]

, 2015
The European Union (EU) Emissions Trading System (ETS) has implicitly made it more expensive to burn coal relative to natural gas because coal has a higher carbon content.
Meyer, Andrew G., Pac, Grzegorz
core   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Continuous coal processing method [PDF]

, 1980
A coal pump is provided in which solid coal is heated in the barrel of an extruder under pressure to a temperature at which the coal assumes plastic properties.
Ryason, P. R.
core   +1 more source

The evaluation of a risk degree for the process of a brown coal spontaneous ignition on dumps with using of modern numeric methods [PDF]

, 2018
The article is a summary of information about evaluation of a risk degree for a brown coal spontaneous ignition which is realized on the base of a database analysis of information about the development of stative quantities and desorbated gases in the ...
Blata, Jan, Helebrant, František, Klouda, Petr, Moni, Vlastimil, Řehoř, Michal   +4 more
core   +1 more source

Multifunctional Polyfluoride Ionogel‐Encapsulated Lithium Anodes for Durable and Safe Pouch Cells under Harsh Conditions

Advanced Functional Materials, EarlyView.
In this work, it is developed a multifunctional polyfluoride ionogel via in situ thermal polymerization to encapsulate lithium metal anodes, integrating flame‐retardant capability, hydrophobicity, dynamic self‐healing behavior, and high ionic conductivity.
Ting Li, Anjun Hu, Yuanjian Li, Borui Yang, Kun Li, Kai Chen, Jingyun Jiang, Fei Li, Zhi Wei Seh, Jian Wang, Jianping Long   +10 more
wiley   +1 more source

Adaptive intelligent coupling control of hydraulic support and working face system for 6−10 m super high mining in thick coal seams

Meitan kexue jishu
The reserves and production of thick coal seams account for half of the total reserves and production of raw coal in China. By combing the history of thick coal seam mining, we summarize the technology and equipment development practice of thick coal ...
Huijun HAN, Guofa WANG, Yongxiang XU, Jinhu ZHANG, Sheng LEI, Yanpeng LI   +5 more
doaj   +1 more source