Results 101 to 110 of about 934 (182)

Analysis of Dynamic Evolution of Surrounding Rock Movement and Stress-Fracture in the Upward and Repeated Mining of Close-Distance Coal Seams

Advances in Civil Engineering
The distribution of mining-induced stress and the resulting rock fractures are two crucial factors affecting mineral extraction in protective layer mining.
Ningbo Peng, Chunlei Zhang, Ruimin Feng, Arifuggaman Arif, Xi Chen, Weidong Zhang, Shuai Zhang, Mingjie Feng   +7 more
doaj   +1 more source

Sustainable Composites From Almond Shell Powder and Recycled Polyolefin Blends: Effect of Compatibilizer on Interfacial Adhesion and Properties

Polymer Composites, Volume 47, Issue 16, Page 14510-14527, 20 August 2026.
Schematic illustration of sustainable recycled polyolefin/almond shell composites showing the effect of MA‐g‐PP compatibilizer on interfacial adhesion, void reduction, and composite morphology for lightweight automotive applications. ABSTRACT This study reports injection‐molded sustainable composites developed from a hybrid recycled polymer matrix ...
Rebecca Sanchez, Suman Kumar Ghosh, Nur Fazreen Alias, Amar K. Mohanty, Manjusri Misra   +4 more
wiley   +1 more source

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

Advanced Materials, Volume 38, Issue 43, 3 August 2026.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang, Ye Yuan, Yuxiu Sun, Fei Shi, Chenyang Song, Weifan Wang, Qinghua Li, Menglong Sheng, Zhihua Qiao, Jingwei Hou, Anthony K. Cheetham, Zhi Wang   +11 more
wiley   +1 more source

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

Energy Science &Engineering, Volume 14, Issue 8, Page 3625-3637, August 2026.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin, Kanglei Han, En Wang, Yitao Yan, Xubo Zhao   +4 more
wiley   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, Volume 14, Issue 8, Page 3697-3725, August 2026.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

Analysis and Optimization of Early‐Warning Indicators for Impact Critical Stress in Deep Soft Coal Seams

Energy Science &Engineering, Volume 14, Issue 8, Page 3726-3740, August 2026.
This study determines the impact critical stress early‐warning indicators for deep soft coal seams: 18 MPa (shallow holes), 20 MPa (deep holes), and 3 MPa/d daily stress change rate, via theoretical, experimental and simulation methods. ABSTRACT The accurate determination of early‐warning indicators for critical impact stress in deep soft coal seams is
Haichen Yin, Xiufeng Zhang, Atao Li, Yanliang Wang, Long Yuan, Chaohong Shi, Yang Chen, Caiping Lu, Liangjin Jiang   +8 more
wiley   +1 more source

Optimization Study on the Layout of Mining Roadways in the Lower Working Face of Ultraclose Coal Seams

Geofluids
China boasts abundant reserves of close-distance coal seams, where mining operations face complex stress environments and roadway stability. The work took the simultaneous mining faces of ultraclose coal seams in the Huayuan Coal Industry of Lingshi ...
Chaojun Liu, Hongfei Qu, Chenxi Wu, Qi Ma   +3 more
doaj   +1 more source

Iron Energy Carrier: Experimental Characterisation, Combustion Diagnostic and Benchmarking with Other Clean Metal Fuels

Energy Science &Engineering, Volume 14, Issue 8, Page 3862-3877, August 2026.
This study investigates how iron particles burn across a wide size range, revealing late‐stage nanoparticle release and a previously unrecognised shift in combustion behaviour near 118 µm. High‐speed imaging, PMT diagnostics and SEM analyses have been conducted.
Zakaria Mansouri
wiley   +1 more source

Research on gas tracing technology of combined drainage in close distance outburst coal seam group

Meikuang Anquan, 2022
In order to solve the problem of gas measurement in combined drainage of close outburst coal seams, taking Nenghua Xiaotun Coal Mine in Guizhou Province as the engineering background, the method of combining carbon isotope method and stratified measurement is proposed to determine the proportion of gas drainage in any coal seam group, so as to provide ...
openaire   +1 more source

Research on the Critical Mechanical Criterion for Stick‐Slip Instability of Mining‐Affected Normal Faults Based on the Rate‐and‐State Friction Law

Energy Science &Engineering, Volume 14, Issue 8, Page 3935-3947, August 2026.
Mining disturbance tends to trigger fault stick‐slip instability and induce disasters. This paper establishes a mechanical model to propose a critical criterion, which is verified to be reliable via FLAC3D, providing a theoretical basis for early warning of fault slip disasters.
Bowen Wu, Yanhui Li
wiley   +1 more source