Results 121 to 130 of about 8,734 (226)

Mechanism of instability induced scour of thick hard rock-coal pillar structure in deep fully mechanized working face with large mining height

open access: yesYantu gongcheng xuebao
The instability-induced rockburst of thick hard rock stratum-coal pillar structure is a typical rockburst mode in Ordos deep mining area, and its mechanism is still unclear.
ZHANG Xiang 1, ZHU Sitao 1, 2, JIANG Fuxing 1, LIU Jinhai 1, ZHU Quanjie 3, SHI Xianfeng 3, HAN Gang 4, WEI Xiaohu 5, CAO Jinglong 4, QU Xiaocheng 6
doaj   +1 more source

A.G. Stakhanov in Gaumont Pathé’s Soviet Film Archives: Between Physical Performance and Instrumentalisation [PDF]

open access: yes, 2017
The depiction of the miner A.G. Stakhanov in newsreels from the Gaumont Pathé archives highlights the representations of this physical performance used in the specific economic and political environment of the USSR during the interwar period. The Soviet
Mariotti, Nadège
core  

Simulation of rapid loading systems in iron ore mines [PDF]

open access: yes, 2010
In the mining industry, it is observed that sudden break-down of any equipment may stop the entire system, resulting in drastic production losses and enhancing the cost production. In this paper, the probability of sudden break down of each equipment are
Sandeep, Manakeshwar, Sumeet , Verma
core  

Digital twin-driven control construction for three machines of smart coal mining face [PDF]

open access: yes
In order to further improve the intelligent control level of fully mechanized mining equipment in coal mines and achieve the normalized operation of intelligent mining face, this paper proposes the related concepts and system architecture of intelligent ...
Bing MIAO   +3 more
core   +1 more source

Break Even Analysis of Mining Projects [PDF]

open access: yes, 2010
The economics of the resources industry are unique. All mining is subject to uncertainties not applicable to other industries. Every mine is different. Industry economics are difficult to quantify and categorize. Information is very costly.
Ahmad , F, Chauhan, H K
core  

Sparse crowd sensing method for methane concentration field in coal mine fully mechanized mining face

open access: yesMeikuang Anquan
In view of the lack of methane monitoring points in coal mine fully mechanized mining face, it is difficult to achieve for high coverage methane concentration monitoring in the mining face area. We propose a methane concentration field sensing method in the mining face based on sparse crowd sensing.
Jing ZHANG   +3 more
openaire   +1 more source

Research status and prospect of shearer positioning technology on fully mechanized coal mining face

open access: yesGong-kuang zidonghua, 2017
On the basis of development status of shearer positioning technology on fully mechanized coal mining face at home and abroad, characteristics of conventional shearer positioning technology, shearer positioning technology based on strapdown inertial navigation, shearer positioning error compensation technology based on strapdown inertial navigation, and
XIA Ting, LI Wei, WANG Chao, LI Yuche
openaire   +1 more source

The Rules of the Game and the Morality of Efficient Breach [PDF]

open access: yes, 2017
Moralists have long criticized the theory of efficient breach for its advocacy of promise breaking. But a fully developed theory of efficient breach has an internal morality of its own.
Klass, Gregory
core   +2 more sources

Research on following automation technology of hydraulic support on fully—mechanized coal mining face

open access: yesGong-kuang zidonghua, 2018
In view of characteristics of full cutting depth bidirectional cutting technology which was widely used in fully—mechanized coal mining face, a following automation technology of hydraulic support on fully—mechanized coal mining face was put forward, which included three stages: middle following automation, head following automation and tail following ...
GAO Weiyong, ZHANG Minjuan
openaire   +1 more source

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