Results 131 to 140 of about 8,734 (226)

Design of centralized control system for hydraulic supports on fully-mechanized coal mining face

Gong-kuang zidonghua, 2015
In view of problem of low automation degree of current electro-hydraulic control system for hydraulic supports, a centralized control system for hydraulic supports on fully-mechanized coal mining face was designed, designs of hardware and software of the system were introduced, and realizing process of centralized control for hydraulic supports was ...
ZHAO Long, SONG Jiancheng, TIAN Muqin, XU Chunyu, YANG Shihua, YU Yayun, DONG Guangzhuai, YIN Weibin, ZHAO Xudong   +8 more
openaire   +1 more source

A mixed enhancement algorithm of video monitoring image on fully-mechanized coal mining face

Gong-kuang zidonghua, 2016
In view of problem of longitudinal stripe noise existed in single dimension Retinex algorithm, a mixed enhancement algorithm of image was proposed. The algorithm uses template denoising algorithm to reduce longitudinal stripe noise of conventional single scale Retinex algorithm, and adopts Laplace operator to enhance image details, so as to improve ...
XU Rongxin, SI Lei, WEI Yinghao, WANG Ru, CHEN Wenpeng   +4 more
openaire   +1 more source

Research of Magnetic Tracking Navigation of Patrolling Robot on Fully Mechanized Coal Face of Coal Mine Underground

Gong-kuang zidonghua, 2011
The paper proposed a scheme of magnetic tracking navigation of autonomous mobile patrolling robot on fully mechanized coal face of coal mine underground. The scheme defines magnetic tracking material and magnetic sensor of the robot as stripy magnet with high intensity magnetic and model MS-324 tongue tube through experiment, it defines installing ...
ZHU Hong-xiu, SHI Hong-wei, JIANG Chuan, JIA Rui-qing, GUO Wen-jun, FEI Lei, XIE Ke, LI Ling-hui   +7 more
openaire   +1 more source

Market assessment of photovoltaic power systems for agricultural applications in Colombia [PDF]

The market potential for photovoltaic systems in the agricultural sector of Colombia is assessed. Consideration was given to over twenty specific livestock production, crop production, and rural services applications requiring less than 15 kW of power ...
Neyeloff, S., Steigelmann, W.
core   +1 more source

Evolution and dip effect of boundary spatial morphology of top-coal limit equilibrium zone in steeply dipping coal seam. [PDF]

Sci Rep
Wu X, Chi X, Lang D, Wu Y, Zhang Z, Chen S.   +5 more
europepmc   +1 more source

Working face status detection in coal mine based on YOLOv8-EST. [PDF]

Sci Rep
Wang H, Wu G, Yang Q, Huang Y, Lv Z, Yang J.   +5 more
europepmc   +1 more source

Coal thickness gauge using RRAS techniques, part 1 [PDF]

A noncontacting sensor having a measurement range of 0 to 6 in or more, and with an accuracy of 0.5 in or better is needed to control the machinery used in modern coal mining so that the thickness of the coal layer remaining over the rock is maintained ...
King, J. D., Rollwitz, W. L.
core   +1 more source

Optimization of drawing parameters based on top-coal flow law in thick-seam caving mining. [PDF]

Sci Rep
Wu S, Xu X, Wang J, Kong D, Wu G, Liu Q, Zuo Y.   +6 more
europepmc   +1 more source

Acid mine drainage control in mining areas: identification of groundwater recharge pathways and source reduction strategies. [PDF]

Sci Rep
Zhang C, Zhang F, Mu W, Li H.
europepmc   +1 more source

The impact of obstacle parameters on mid-high frequency noise propagation in comprehensive mining workfaces and safety implications. [PDF]

Sci Rep
Jia G, Yang M, Jiang D, Guo J, Liu M, Tao Y.   +5 more
europepmc   +1 more source