Results 21 to 30 of about 127,098 (302)
Data-Driven Cooperative Control Model of Shearer-Scraper Conveyor Based on Rough Set Theory
Frontiers in Energy Research, 2022 The cooperative control of shearer and scraper conveyors is the prerequisite for the realization of intelligent comprehensive mining equipment and unmanned comprehensive mining workings. However, because of the harsh working face environment, the complex
Shuanfeng Zhao +8 more
doaj +1 more source
Longwall shearer cutting force estimation [PDF]
, 2014 Longwall mining is an underground coal mining method that is widely used. A shearer traverses the coal panel to cut coal that falls to a conveyor. Operation of the longwall can benefit from knowledge of the cutting forces at the coal/shearer interface ...
Gurgenci, H. +3 more
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Cable traction tension overload protection device of shearer
Gong-kuang zidonghua, 2017 In view of problem of cable and cable traction clamp damaged by tension overloading of cable traction of shearer, a cable traction tension overload protection device of shearer was designed.
LI Yuhua +3 more
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Improving the process of coal extraction based on the parameter optimization of mining equipment [PDF]
, 2018 The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining.
Hrinov, Volodymyr, Khorolskyi, Andrii
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Automatic Reconstruction of Fault Networks from Seismicity Catalogs: 3D Optimal Anisotropic Dynamic Clustering [PDF]
, 2007 We propose a new pattern recognition method that is able to reconstruct the 3D structure of the active part of a fault network using the spatial location of earthquakes.
Bhattacharya +36 more
core +3 more sources
The Lefthanded Local Lemma characterizes chordal dependency graphs [PDF]
, 2012 Shearer gave a general theorem characterizing the family $\LLL$ of dependency graphs labeled with probabilities $p_v$ which have the property that for any family of events with a dependency graph from $\LLL$ (whose vertex-labels are upper bounds on the ...
Pegden, Wesley
core +2 more sources
Research on whole life cycle service system of shearer
Gong-kuang zidonghua, 2018 In view of problems that current shearer life cycle management has low real-time performance and low accuracy of information collection, and unable to uniquely identify shearer, a design scheme of RFID-based whole life cycle service system of shearer was
CAO Xiangang +5 more
doaj +1 more source
Gong-kuang zidonghua, 2019 In view of problems that current virtual simulation of shearer mining operation are mostly based on preset trajectories, seldom consider impact of coal seam loading and can not show dynamic process of shearer operation, three-dimensional simulation of ...
WANG Xiao
doaj +1 more source
Comment on "Direct photodetachment of F$^-$ by mid-infrared few-cycle femtosecond laser pulses" [PDF]
, 2016 Multiphoton detachment of F$^-$ by strong few-cycle laser pulses was studied by Shearer and Monteith using a Keldysh-type approach [Phys. Rev. A 88, 033415 (2013)]. We believe that this work contained errors in the calculation of the detachment amplitude
Gribakin, G. F., Law, S. M. K.
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Shearer positioning method based on non-holonomic constraints
Gong-kuang zidonghua, 2022 At present, the shearer positioning method is based on the combination of the inertial navigation system and odometer. The method directly uses the output of the odometer to correct the shearer forward speed calculated by the inertial navigation system ...
SONG Danyang +5 more
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