Results 81 to 90 of about 800 (179)
, 2021 In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical ...
YANG Xiaodong, LI Cunzhou
core +1 more source
Do robots boost productivity? A quantitative meta‐study
Journal of Economic Surveys, Volume 40, Issue 3, Page 1531-1571, July 2026.ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley +1 more source
Corrosive protection mechanism of Zinc-rich coatings and application in coal mining equipment
矿业科学学报, 2016 Corrosive protection performance of self-made inorganic Zinc-rich primer coating (KD) and different corrosion protection coating systems [KD+intermediate+finish paint (KDZY)，commercial primer+intermediate+finish paint (ZYQT)，KD+water based intermediate ...
Chen Huahui +4 more
doaj
, 2011 This paper studies insecure factors of fully-mechanized top coal mining in “three soft” large inclined angle working face, which have impacted the normal generation badly, including rib spalling, roof fall and equipment slide, etc.
Yanli, Zhu +4 more
core +1 more source
Target detection of the fully mechanized working face based on improved YOLOv4
, 2023 The accurate detection of key equipment and personnel in the fully mechanized working face is an important link to realize the information perception of intelligent coal mining.
WANG Keping +3 more
core +1 more source
Key technologies and demonstration of unmanned steeply inclined short-wall fully mechanized top-coal caving intelligent mining [PDF]
Since the 14th Five-Year Plan, my China’s coal mine digital intelligence technology has developed rapidly, especially in thin coal seam mining. However, the unmanned intelligent mining technology of steeply inclined short-wall fully mechanized caving is ...
Xin TIAN +10 more
core +1 more source
Applications of Machine Vision in Coal Mine Fully Mechanized Tunneling Faces: A Review
, 2023 The realization of intelligent mining is the only method for realizing high-quality development in the coal industry. As the forefront working link in mine production, achieving automatic roadway tunneling control is key to improving production ...
Yuxin Du +4 more
core +1 more source
UWB linkage locking technology and application design for mine faces
Meikuang AnquanThis article conducts a comprehensive study and analysis of ultra wideband wireless carrier communication technology (UWB) and two positioning algorithms of TDOA and TOF.
Baojiang REN
doaj +1 more source
Optimization Research of Hydraulic Support in Fully Mechanized Caving Face
, 2014 According to the problem that the high concentrations of fully mechanized caving face is difficult to control, the mathematical model of solving two-phase flow of gas and dust particles was built by established the k-ɛ-Θ-kp equation.
Lei, Zhang +5 more
core +1 more source
Electrical and Mechanical Technology Research of Fully Mechanized Coal Caving under Aquifer
, 2011 In this paper, We studied the technical issues of fully mechanized caving under aquifer in Tiebei mine of Zhalainuoer mining company，carry on analysis and studies from the electrical and mechanical equipment to the technical management and gave the ...
Gui Ling Bu, Li Wang, Bai Chao Song
core +1 more source