1Drilling experiment research on bedding directional drilling of soft-fragmentized coal seam of Qinglong Coal MineLI Quanxin, FANG Jun, CHU Zhiwei, LIU FeiAchievements of Scientific Research1-62Intelligent semantic acquisition and smart decision support system of coal mine safety hazardsCHEN Zihua, LI JingzhaoAchievements of Scientific Research7-133Research on following automation technology of hydraulic support on fully-mechanized coal mining faceGAO Weiyong, ZHANG MinjuanAchievements of Scientific Research14-174Development and prospect on intelligent drilling technology and equipment for gas drainageWANG Qingfeng, CHEN HangOverview18-245Present situation and development direction of monitoring technology for chain tension of mine-used scraper conveyorCAI Wenfei, LEI Zhipeng, SONG Jiancheng, ZHANG Guodong, REN Hongqiu, TIAN Muqin, XU Chunyu, ZHU JianfeiOverview25-316Target detection of underground personnel based on deep convolutional neural networkTANG Shiyu, ZHU Aichun, ZHANG Sai, CAO Qingfeng, CUI Ran, HUA GangAnalysis Research32-367Research on influence of underground coal dust concentration and humidity on electromagnetic waves transmissionZHAO Shiping, SUN Xiuling, KAN XiaotingAnalysis Research37-418Inversion method of mechanical parameters of rock mass in soft rock roadway and its engineering applicationWU Genshui, YU Weijian, LIU Ze, LIU Fangfang, HUANG ZhongAnalysis Research41-489Numerical simulation on gas drainage and borehole arrangement parameters of bedding borehole in a coal mineZHANG Bo, XIE Xionggang, XU ShiqingExperimental Research49-5610Optimization of index gases and division method of spontaneous combustion "three zones" in 10 coal seam of Qingdong Coal MineSUN Liutao, DUAN Yujian, HUANG JunzeExperimental Research56-6111Analysis of combustion duration and residual gas in secondary explosion of coal dustLI Xiaoliang, YAN Li, LIU Zhentang, LIU Haoxiong, QIAN Jifa, HONG Sen, ZHANG RuiExperimental Research62-6812Underground video stitching algorithm based on improved speeded up robust featuresGUAN Zenglun, GU Jun, ZHAO GuangyuanExperimental Research69-7413Intrusion detection algorithm for industrial control system of coal mine enterpriseWU Kaixing, WANG Wending, LI LihongExperimental Research75-7914Big data cleaning modeling of operation status of coal mine fully-mechanized coal mining equipmentMA Hongwei, WU Shaojie, CAO Xiangang, XU Boyuan, ZHANG XinyuanExperimental Research80-8315Research on composite resonator network with onstant-current output for current-fed ICPT systemsHOU Chun, ZHU Wang, SHUI Hengqi, YU DongshengExperimental Research84-9016Optimization strategy of switching modulation of mine-used high-voltage frequency converterLI Zhaoping, ZHANG Hongjuan, JIN Baoquan, GAO Yan, HUANG Fei, WANG YuxingExperimental Research91-9517Research on deformation law of roadway surrounding rock in Cuijiagou Coal MineFENG Chao, FAN GongqinExperimental Research95-9918Denoising method of vibration signal of rolling bearing based on multi-criteria fusionGAO Caixia, WU Tong, FU ZiyiExperimental Research100-104 