Results 51 to 60 of about 2,137,122 (310)

China's Low‐Carbon Energy Transition Over the Past Two Decades: Experiences and Implications

Advanced Science, EarlyView.
China's low‐carbon energy transition features a brief decline and subsequent rebound in coal consumption, alongside the rapid expansion of renewable energy. This study develops a stage‐based analytical framework to explain this evolution from the perspectives of economic development, energy security, and environmental sustainability, revealing how ...
Yu Liu, Zhiyu Tian, Zhengxian Zhang, Xinbei Li   +3 more
wiley   +1 more source

Multi-scale analysis of stress-corrosion failure and anti-corrosion strategies for anchor bolts in Tashan coal mine

Scientific Reports
Frequent failures of roadway anchor bolts in the roof-dripping zones of the Tashan coal mine endanger roadway stability and safety. To clarify the stress-corrosion cracking (SCC) mechanism and identify mitigation strategies, we combined water-chemistry ...
Lei Wang, Zhongwei Li, Yukai Fu, Xiang Xu, Xiaowei Chu   +4 more
doaj   +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

Ultrathin 2D In2O3 Nanosheets Confining Cu Single Atoms Synergized With Oxygen Vacancies for High Selectivity of Photocatalytic Reduction of CO2 to CO

Advanced Science, EarlyView.
In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure based on oxygen vacancies (OV)‐rich defects and low crystallinity to anchor Cu single atoms (Cu SAs) and synthesized Cu/In2O3‐Ns photocatalysts. ABSTRACT In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure ...
Yueying Yang, Xuan Xiang, Jiali Ren, Ying Bian, Xinyu Wang, Xiaoyang Lu, Yanjun Xue, Porun Liu, Cheng‐Hao Chuang, Xiaoli Zhang, Jian Tian   +10 more
wiley   +1 more source

Synthesis and Properties of Moisture-Crosslinkable Poly(Urethane-Urea) With Intrinsic Flame Retardancy

Advances in Polymer Technology
To improve the deteriorated performance caused by CO2 release during the curing process of traditional moisture-crosslinked polyurethane or polyurea and poor flame retardancy, this work realized an effective in situ crosslinking technique triggered by ...
Zongke He, Pengfei Jiang, Ziyue Wang, Yangfeng Gao, Jichang Guo, Yaozhong Wei, Chang Liu   +6 more
doaj   +1 more source

Bardo Coal Mining Company, Blue Diamond Coal Company, Wallins Creek Coal Company [PDF]

, 1940
The scrips from the Bardo Coal Mining Company have values of 5¢, 10¢, and $1. The scrips from the Blue Diamond Coal Company have values of 5¢ and $1.
Wallins Creek Coal Company, Blue Diamond Coal Company, Bardo Coal Mining Company   +2 more
core  

Climate Change is Rewriting the Hydroclimatic Operating Envelope of Mines

Advanced Science, EarlyView.
Climate change is shown to shift the hydroclimatic operating envelope of mines: 16.2% of represented mine locations have already changed Köppen subtype, rising to 42.5% by late century under SSP5‐8.5. Divergent water trajectories are filtered through geology, infrastructure and lifecycle stage, indicating that adaptation requires monitored, scenario ...
Haoxuan Yu, Izni Zahidi, Chow Ming Fai, Jilong Pan   +3 more
wiley   +1 more source

Research on the mechanism and morphology of coal damage by water jet deflection angle

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
This study investigates coal damage mechanisms under water jet deflection angles of 0°, 30°, 45°, and 60° through theoretical analysis, numerical simulation, laboratory experiments, and field validation.
Biao Hou, Zhen Zhang, Wenjun Ju, Kun Pan, Hongzhi Yang, Tao Yu   +5 more
doaj   +1 more source

Analysis on the mechanism and effect of coal seam water jet reaming and grooving technology for prevention and control of rock burst

采矿与岩层控制工程学报
Aiming at the limitations of small pressure relief range and short pressure relief time of boreholes in rock burst coal seams, water jet reaming and grooving technology was developed.
Chenyang ZHANG, Yongxue XIA, Hongyuan MA, Taotao DU, Jinlong ZHOU, Dingyuan CAO   +5 more
doaj   +1 more source

Toward Sustainable Separation and Recovery of Critical Metals From Discarded Industrial Perovskite Solar Modules

Advanced Science, EarlyView.
An architecture‐guided recycling process enables selective metal recovery from end‐of‐life perovskite solar modules by exploiting interfacial accessibility and calcination‐induced phase transformation. The process achieves >99.8% Pb removal, >99.7% In recovery, and >96.1% Cu recovery, while selectively retaining Sn in leaching residue.
Guang Hu, Zhaoyang Li, Shifa Zhou, Jie Qin, Sha Liang, Huabo Duan, Liang Huang, Jingping Hu, Huijie Hou, Hongjie Zhou, Ling Xu, Chao Chen, Jiang Tang, Jiakuan Yang   +13 more
wiley   +1 more source