1Smart mine with 5G and WiFi6SUN Jiping, CHEN HuishengAchievements of Scientific Research1-42Off-line measurement while drilling system for mine-used slewing drilling rigZHANG Wenjie, LIU Zongwei, SONG JianchengAchievements of Scientific Research5-103Simulation analysis of roof beam position and attitude control of hydraulic supportREN Huaiwei, LI Shuaishuai, LI Xie, FU ZhuangAcademic Column of Young Experts11-164Research on opposition-based enhanced fireworks algorithm optimization for mine ventilation networkWU Xinzhong, HU Jianhao, WEI Lianjiang, QIAN Xiaoyu, REN Zihui, ZHANG ZhichaoAcademic Column of Young Experts17-22,675Research status and prospect of intelligentization technology of roadheaderLIU Songyong, ZHANG DeyiAnalysis Research23-286Discussion on disaster environment detection technology of coal mine rescue robotZHENG Xuezhao, YAN Xing, CUI Jiaming, GUO JunAnalysis Research29-327Field measurement of the influence of coal face mining on adjacent main roadway deformationZHANG ShaohuaAnalysis Research33-378Research on influence of the maximum principal stress direction on stability of roadway surrounding rockLI Guiming, ZHOU Chao, WANG XiaodongAnalysis Research38-42,739Research on deformation characteristics of mining overburden rock on deep "three-sided" island working faceREN Mengli, CAI Feng, MEI ShengkaiAnalysis Research43-4810Research on path smoothing algorithm of coal mine rescue robotTAO Dejun, JIANG Yuanyuan, LIU Yanbin, XIN Yuanfang, LUO JunExperimental Research49-5411Conveyor belt tear detection method based on lion group optimization two-dimensional Otsu algorithmGAN Fubao, HUANG Yourui, HAN Tao, XU ShanyongExperimental Research55-60,7912Sensorless control for permanent magnet synchronous motor of scraper conveyorHU Wenbin, WANG Yujuan, ZHANG ChuanjinExperimental Research61-6713Prediction of coal and gas outburst intensity based on LLE-FOA-BP modelLONG Nengzeng, YUAN Mei, AO Xuanjun, LI Xinling, ZHANG PingExperimental Research68-7314Pressure relief mechanism and experiment of directional hydraulic fracturing in retaining roadwayLI Wujun, FU Yukai, WANG Tao, ZHANG ZhantaoExperimental Research74-7915A fault diagnosis method for coal mine machinery bearingXU Qingqing, ZHAO Haifang, LI ShoujunExperimental Research80-85,9016High-pressure water mist automatic fire extinguishing system for flammable dust environmentMENG Xiangbao, WANG Junfeng, ZHANG Yansong, LIU BoExperience Exchange86-9017Analysis of energy consumption characteristics of bluetooth low energy moduleZHUO Minmin, ZHAO Lichang, LI JiyunExperience Exchange91-94,9818Random error identification for MEMS gyro in coal mine undergroundCONG Lin, WANG Xiaolong, YAN BinExperience Exchange95-9819Application research on roadway protection technology by hydraulic fracturing roof cutting pressure relief in underground coal mineDONG ZhiyongExperience Exchange99-10320Design of online fault diagnosis and early warning system for coal mine rotating machineryYANG Yiqing, MA Hongwei, FAN Hongwei, ZHANG Xuhui, ZHANG Chao, HAN LeiExperience Exchange104-108 