Results 21 to 30 of about 16,102,303 (245)

Controlled mining technology of multi-weak bedding down-dipping soft rock slope

Meikuang Anquan
Aiming at the problem of coal at the lower part of multi-weak bedding down-dipping soft rock slope, from the perspective of controllable slope deformation risk and the maximization of resource recovery, based on the analysis of geological data and weak ...
Jiao WANG, Qingdi CUI, Chengjiang LIANG, Daolong QU, Haiyang FENG, Hanquan LIU   +5 more
doaj   +1 more source

Comprehensive Treatment and Utilization Ideas of Environmental Geological Disasters in Mining City Open-pit Mine

Meikuang Anquan, 2020
In order to study the comprehensive treatment and utilization ideas of environmental geological disasters in mining city open-pit mines, the distribution of mining cities across the country have been investigated.
MIAO Haibin, ZHAO He, WANG Haiyang
doaj   +1 more source

Influence of coal spontaneous combustion on slope stability of high and steep open-pit mine and countermeasures

Meikuang Anquan, 2022
In order to explore the influence of coal seam spontaneous combustion process on slope stability, the slope slip process under different coal seam spontaneous combustion depths was simulated by using FLAC3D based on the engineering background of Hequ ...
LUO Ke, GAO Yu, ZHANG Bin
doaj   +1 more source

Research on characteristics and prediction of vehicle speed in open-pit mines based on spatiotemporal and meteorological factors

Gong-kuang zidonghua
Existing prediction models for vehicle speed in open-pit mines do not fully consider the influence of meteorological factors on operating speed. The data sample sets are insufficient to train or fine-tune deep learning models.
QU Daolong, FU Ensan, PAN Fei, LIU Hanquan, YANG Yanfeng, LIU Guangwei   +5 more
doaj   +1 more source

Perspectives for the Transportless Mining Technology in Siberia and Far East Coal Deposits [PDF]

E3S Web of Conferences, 2019
In accordance with the long-term program for the coal industry development in Russia until 2030, the growth in the share of the Far East Federal District in the total coal production should be 2.5% compared to 2018.
Markov Sergey, Janočko Juraj, Tyulenev Maxim, Litvin Yaroslav   +3 more
doaj   +1 more source

Discussion on the stability evaluation standard of a rock slope in a noncoal open-pit mine

工程科学学报, 2022
As an important way to obtain mineral resources, open-pit mining has accounted for about 77% of the total production of the mined iron ore, and about 52% of the total production of non-ferrous ore, indicating huge development potential.
Shun-chuan WU, Peng-bin HE, Hai-yong CHENG, Guang-he WANG, Xiao-qiang ZHANG, Zhong-xin ZHANG   +5 more
doaj   +1 more source

Research on IMU-LiDAR collaborative positioning method for unmanned mine truck under weak GNSS conditions

Scientific Reports
To address the critical technical challenge of positioning failure in unmanned mining trucks induced by global navigation satellite system (GNSS) signal attenuation in complex open-pit coal mine environments, particularly the significant trajectory ...
Guilin Hu, Jun Wang, Qiqi Li, Hongyu Zhang, Shaohua Sun, Zhiyong Yang, Zhiqun Wang   +6 more
doaj   +1 more source

Optimisation of open pit mine block sequencing [PDF]

, 2015
This study presents a comprehensive mathematical model for open pit mine block sequencing problem which considers technical aspects of real-life mine operations.
Mousavi Nogholi, Amin Alah
core  

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Small Target Detection Model for Open-Pit Coal Mines Based on UAV Perspective

IEEE Access
To address issues such as missed detection of small targets, low computational efficiency, and difficulties in deploying on edge devices encountered in the detection of uncrewed mining trucks under the complex environment of open-pit coal mines, this ...
Kuan Lv, Haili Yu, Xiangchun Meng, Wenshuai Yang, Haobo Zhang   +4 more
doaj   +1 more source