Results 21 to 30 of about 842,121 (320)

Deep seabed mining: Frontiers in engineering geology and environment

International Journal of Coal Science & Technology, 2023
Ocean mining activities have been ongoing for nearly 70 years, making great contributions to industrialization. Given the increasing demand for energy, along with the restructuring of the energy supply catalyzed by efforts to achieve a low-carbon economy,
Xingsen Guo, Ning Fan, Yihan Liu, Xiaolei Liu, Zekun Wang, Xiaotian Xie, Y. Jia   +6 more
semanticscholar   +1 more source

Rational Use of Land Resource During the Implementation of Transportless System of Coal Strata Surface Mining [PDF]

, 2017
Surface mining and open pits engineering affect the environment in a very negative way. Among other pollutions that open pits make during mineral deposits exploiting, particular problem is the landscape changing. Along with converting the land into pits,
Gvozdkova, T., Osipov, Yury Mirzoevich, Trifonov, Vladimir Aleksandrovich, Tyulenev, M., Zhironkin, Sergey Aleksandrovich   +4 more
core   +2 more sources

Simulation of deposit parameters in underground development mining [PDF]

, 2018
The article is aimed at improving development mining to prepare an ore body for stoping by access ramps to provide comfortable conditions and high technical and economic indices in underground mining.
Golik, Vladimir, Morkun, Nataliia, Morkun, Volodymyr, Razorenov, Yuriy   +3 more
core   +1 more source

Study on the Key Factors of Terminal Mining Line Layout in Repeated Mining of Close-Distance Thick Coal Seams

Advances in Materials Science and Engineering, 2022
In order to mater the reasonable layout basis of the terminal mining line position in the repeated mining of close-distance thick coal seams, taking Yan mine as the engineering background, we conducted theoretical analyses, numerical simulations, and ...
Fulian He, Bingquan Liu, Liang Li, Xuhui Xu, Kai Lv, Wenli Zhai, Jiayu Song, Deqiu Wang   +7 more
doaj   +1 more source

Roadway Surrounding Rock under Multi-Coal-Seam Mining: Deviatoric Stress Evolution and Control Technology

Advances in Civil Engineering, 2020
Multi-coal-seam mining creates surrounding rock control difficulties, because the mining of a coal face in one seam can affect coal faces in another. We examine the effects of multi-coal-seam mining on the evolution of the deviatoric stress distribution ...
Dongdong Chen, En Wang, Shengrong Xie, Fulian He, Long Wang, Qing Zhang, Xiaoyu Wu, Zaisheng Jiang, Yubo Li, Songhao Shi   +9 more
doaj   +1 more source

Enhancement of Coal Permeability Using Aqueous NaCl with Microwave Irradiation

Geofluids, 2022
Water in coal pores can generate strong steam explosions when treated with microwave irradiation. In order to improve the sensitivity of coal reservoirs to microwaves, we used varying concentrations of NaCl on the pore solution, which further increased ...
Weiming Guan, Qi Qi, Senlin Nan, Haichao Wang, Xin Li, Yingyuan Wen, Junhui Yao, Yanyan Ge   +7 more
doaj   +1 more source

An Overview of the Use of Neural Networks for Data Mining Tasks [PDF]

, 2012
In the recent years the area of data mining has experienced a considerable demand for technologies that extract knowledge from large and complex data sources.
Alberts B, Alpaydin E, Ando T, Blake CL, Bramer MA, Castanheira LG, Han J, Lu H, Mitchell M, Ni X, Quinlan RJ, Rumelhart DE, Shafer JC, Shendure J, Simić D, Stahl F, Steinwart I, Surjandari I, Wei JS, Widrow B, Witten IH, Zaslavsky B, Zhang D   +22 more
core   +1 more source

Water-conserving mining influencing factors identification and weight determination in northwest China

International Journal of Coal Science & Technology, 2019
Water-conserving mining is an effective way to alleviate the contradiction between fragile ecological environment and high-intensity coal mining in the arid and semi-arid region of northwest China.
Limin Fan, Liqiang Ma, Yihe Yu, Shuokang Wang, Yujun Xu   +4 more
doaj   +1 more source

Applied scientific and systemic problems of the related ore-dressing plants interaction in the event of decommissioning the massif that separates their quarries [PDF]

, 2020
Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar between the No. 3 quarry of PJSC
Azarian, Volodymyr, Lutsenko, Serhii, Skachkov, Andrii, Titov, Danylo, Zaiarskyi, Ruslan, Zhukov, Serhii   +5 more
core   +1 more source

A Boxology of Design Patterns for Hybrid Learning and Reasoning Systems [PDF]

, 2019
We propose a set of compositional design patterns to describe a large variety of systems that combine statistical techniques from machine learning with symbolic techniques from knowledge representation.
Teije, Annette ten, van Harmelen, Frank
core   +2 more sources