Results 81 to 90 of about 2,418,377 (304)

Nonlinear mechanical analysis of load-bearing characteristics of coal-support-backfill system crossing abandoned roadways

Journal of Rock Mechanics and Geotechnical Engineering
Roof pre-fracture poses a considerable risk during the re-mining of residual coal above abandoned roadways, threatening the safety of the mining faces.
Jun Guo, Zi Wang, Guorui Feng, Jinwen Bai, Xiaoze Wen, Wenbo Huang, Jie Zhang, Wenming Feng, Quan Liu, Jiahao Zhang, Longlong Yang   +10 more
doaj   +1 more source

Analysis Of Highwall Mining Stability - The Effect Of Multiple Seams And Prior Auger Mining On Design [PDF]

The objective of this is paper is to review the current state of knowledge and practice in highwall mining (HWM). HWM has become a widely-applied method in surface mining, commonly used alone or in conjunction with contour or slot mining. It provides 800-

core  

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Experimental study on correlation between volatile matter of low-rank coal and hydrogen production performance of coal water slurry electrolysis

Meitan xuebao
Although low-rank coal is abundant, its quality is poor, and traditional utilization methods such as combustion, gasification, and pyrolysis have low thermal efficiency, significant environmental pollution, and severe resource waste, making it difficult ...
Fan YU, Huiyu SHANG, Yunfei WU, Xuesong YANG, Mengdi XU, Bobo ZHOU, Zhe LI, Yaowen XING, Xiahui GUI   +8 more
doaj   +1 more source

Transactions of the American Institute of Mining Engineers.

, 1873
Mode of access: Internet.Vols. 1-5 in v. 5; Vols. 1-15. 1 v.; Vols. 11-25. 1 v.; Vols. 21-25. 1 v.; Vols. 1(1871)-35 (1904). 1 v.; Vols. 36 (1905)-55 (1915). 1 v.; Vols. 56 (1916)-72 (1925). 1 v.
American Institute of Mining Engineers.
core  

Role of mining in national economies [PDF]

, 2016
Mining can play a vital role on the sustainable development of some of the world’s poorest countries, yet many countries that are most economically dependent on mining would benefit from improved governance, according to a new report published by the ...
International Council on Mining and Metals
core  

Assessing the Influence of Green Accounting Practices on Mining Companies’ Financial Outcomes [PDF]

This paper examined the influence of green accounting policies on financial performance, an area of increasing importance as organizations strive to align financial and environmental objectives.
Mary PHIRI, Newman WADESANGO
core   +2 more sources

Characterized Ecoflex Polydimethylsiloxane (PDMS) Hybrids for Advanced Flexible Devices

Advanced Materials Technologies, EarlyView.
Ecoflex–PDMS hybrids are systematically characterized to identify an optimal composition that balances stretchability, optical transparency, and plasma bonding, enabling multifunctional applications in stretchable microfluidics, flexible sensing, and soft robotics.
Xiaoyue Kang, Zhefan Chen, Zhiyang Hong, Wanting Chen, Qingtian Zhang, Amith Mudugamuwa, Tuan‐Khoa Nguyen, Lingxi Ouyang, Nam‐Trung Nguyen, Jun Zhang, Dan Yuan   +10 more
wiley   +1 more source

"Green are fields, not mines": the case of lithium mining and resistance in Serbia

, 2022
This research is concerned with the emerging lithium extractivist frontier in Serbia. In 2004, a new mineral jadarite was discovered by the multinational mining company Rio Tinto, and it was found to be unusually rich in lithium and boron. Since then, more lithium deposits have been discovered in Serbia, with companies seeking to extract the element ...
openaire   +1 more source

Regulation on strength and pore structure of non-sintered ceramsite filter material derived from coal gasification slag

Meitan kexue jishu
Gasified coal slag serves as a high-quality raw material for preparing non-sintered ceramsite filter media, where mechanical strength and pore structure are critical determinants of filtration performance.
Hao SUN, Linliang JIANG, Xinzhuo CHANG, Quanzhi TIAN   +3 more
doaj   +1 more source