1Coal mine intelligence and mine-used 5GSUN JipingAchievements of Scientific Research1-72Research on key technologies of coal mine auxiliary transportation robotYUAN Xiaoming, HAO MingruiOverview8-143Research status of pose detection methods of boom-type roadheaderMA Yuan, FU Shichen, ZHANG Ziyue, WANG DongjieOverview15-204Advanced control of dense medium coal separation process: research progresses and prospectsZHANG Lingzhi, DAI Wei, MA XiaopingOverview21-27,695Research on application of network slice technology in mine communication networkLIU Haipeng, ZHOU ShuqiuAnalysis Research28-31,576Research on principle of supporting status classification and sensing of hydraulic supportZHANG Desheng, WEI Xuntao, BIAN Ji, WEN Zhiguo, LI Dingyi, DU ShangyuAnalysis Research32-377Analysis of influencing factors of short-circuit spark discharge in electric potential capacitance circuitKANG Qian, XU Chunyu, TIAN Muqin, SONG JianchengAnalysis Research38-43,638Research on influence of parasitic parameters of LRC filter for mine-used inverterSHI Han, JIANG Dezhi, RONG Xiang, WANG YueAnalysis Research44-509Detection test of coal seam hydraulic fracturing range based on multi-frequency synchronous electromagnetic wave CT technologyYUAN Yongbang, YI HongchunExperimental Research51-5710Influence of hydraulic fracturing parameters of reused coal pillar roadway on pressure relief effectZHANG ZhenExperimental Research58-6311Path planning of mine robot based on a novel heuristic algorithm with regular hexagon gridsWANG He, CHEN Jing, TENG YingyaoExperimental Research64-6912Rolling bearing fault diagnosis based on wavelet packet decomposition and PSO-BPNNJU Chen, ZHANG Chao, FAN Hongwei, ZHANG Xuhui, YANG Yiqing, YAN YangExperimental Research70-7413Improved DSOGI-PLL for synchronizing frequency detection of mine power grid voltageGAO Zhengzhong, WANG Yanan, NIU Huihui, WU MingjuanExperimental Research75-8114Design of three-dimensional scene monitoring system for filling hydraulic supportZHAO Hao, SHI Yannan, ZHANG ChongchongExperience Exchange82-8815Hydraulic support condition monitoring system based on LoRaWANHAN Zhe, DU Yibo, REN Huaiwei, ZHAO Guorui, WEN Zhiguo, ZHOU JieExperience Exchange89-93,10016Optimization design of video monitoring system on fully-mechanized mining faceDU ChunhuiExperience Exchange94-10017Design of a mine monitoring image restoration device based on L-R algorithmFU YuanExperience Exchange101-105,11618Design of collecting and computing platform used for predictive maintenance of coal mine electromechanical equipmentZHOU LibingExperience Exchange106-11119Design of automatic in and out device of hydraulic support test benchZHAO RuiExperience Exchange112-11620Forward multi-stage large-diameter reaming technology for directional high-level borehole in roofJIA MingqunExperience Exchange117-122 