Results 31 to 40 of about 335,851 (308)

Distribution Law of Abutment Pressure and Support Technology in the Roadway of Repeated Mining in the Fully Mechanized Top Coal Caving Mining Face

Advances in Civil Engineering
Due to repeated mining in the 130203 fully mechanized top coal caving mining face of the coal mine, the severe mining pressure phenomenon occurs in the return airway.
Fengyuan Lv, Junmeng Li, Guiyuan Wang, Qiming Wei, Yuxin Ren, Yuancheng Pei, Kun Ma, Yu Gong   +7 more
doaj   +1 more source

Three-dimensional spatial and temporal distributions of dust in roadway tunneling

International Journal of Coal Science & Technology, 2020
To study the three-dimensional spatial and temporal distributions of dust in tunneling roadways, and to solve the problems of inadequate time and limited number of monitoring points, this paper designs a device for the real-time monitoring and storage of
Haifei Yao, Haiyan Wang, Yanchuan Li, Lei Jin   +3 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Advances in studies investigating the comprehensive utilization of coal gangue: a visualization analysis based on CiteSpace

Discover Applied Sciences
Coal gangue, as a byproduct of coal mining and washing, has experienced a significant surge in production due to escalating energy demands. The extensive accumulation of coal gangue has resulted in significant challenges, including resource wastage and ...
Yichao Lin, Meiyan Si, Huijie Han, Hai Jin, Yongliang Long, Lei Deng, Zhonglong Gong, Wei Feng, Tao Nie, Xiaoqian Xu, Qingsong Li, Yuntao Zhang, Chunhua Wang   +12 more
doaj   +1 more source

.Research on the coal pillar width of gob-side entry retaining under the damage effect of heterogeneous rock

Gong-kuang zidonghua, 2021
At present, the research on the coal pillar width of gob-side entry retaining focuses on the coal pillar strength, coal pillar load and coal pillar stability.
XIE Zhenhua1, MA Tianhu1, FAN Zhanglei2, FAN Chaojun3, LIU Husheng1, HU Jiang1, LI Yunfei1   +6 more
doaj   +1 more source

Revegetation Research on Coal Mine Overburden Materials in Interior to Southcentral Alaska [PDF]

, 1987
This report was reprinted from Focus on Alaska's Coal '86: Proceedings of the Conference MIRL Report Number 72. The pagination in the original publication has been retained.
Mitchell, Wm. W.
core  

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu, Younghoon Jung, Hojin Son, Min‐Young Kim, Jinsub Lim, Changhun Yun   +5 more
wiley   +1 more source

Research on dust control technology and numerical simulation of conical guiding air curtain in fully mechanized excavation face

Scientific Reports
The dust pollution caused by the operation of fully mechanized heading face poses a serious threat to the safety production of operators and working face. To reduce dust concentration at the fully mechanized heading face, this study analyzed dust samples
Xin Meng, Qiqiang Gao, Jie Li, Guoan Zhao   +3 more
doaj   +1 more source

Socioeconomic Impacts of Potential Wishbone Hill Coal Mining Activity [PDF]

, 2010
The purpose of this study is to assess some of the significant socioeconomic effects of potential coal mining activity at Wishbone Hill. The analysis scenario assumes a 16-year period of startup and mine production using two known deposits that are ...
Colt, Steve, Schwörer, Tobias
core  

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source