1Research on cyclic liquid nitrogen fracturing technology for enhancing coalbed methane drainage and its application prospectZHAI Cheng, XU JizhaoSpecial of Intelligent Gas Drainage Technology and Equipment1-82Analysis of development framework of intelligent coal mine underground drilling technologyLI Quanxin, LIU Fei, FANG JunSpecial of Intelligent Gas Drainage Technology and Equipment9-13,253Application of pneumatic directional drilling technology for soft-fragmentized coal seam in Qinglong Coal MineKONG Qingjun, CHU ZhiweiSpecial of Intelligent Gas Drainage Technology and Equipment14-18,374Research on influence characteristics of water jet impact on borehole gas drainageGAO Yabin, HAN Peizhuang, GUO Xiaoya, XIANG Xin, WANG FeiSpecial of Intelligent Gas Drainage Technology and Equipment19-255Research on drag reduction technology for long boreholes drilling in coal mineWANG Siyi, ZHAO Jiangpeng, YANG DongdongSpecial of Intelligent Gas Drainage Technology and Equipment26-316Research on underground drill pipe counting method based on improved ResNet networkGAO Rui, HAO Le, LIU Bao, WEN Jingyi, CHEN YuhangSpecial of Intelligent Gas Drainage Technology and Equipment32-377Research on a novel combined sealing airbag for high gas working face cornerQIAO Lei, FAN Fuhuai, HUANG XiaoshengSpecial of Intelligent Gas Drainage Technology and Equipment38-42,548Research on key technologies of mine-used intelligent inspection robotPAN Xiangsheng, CHEN XiaojingOver View43-489Research on data-driven detection technology of smart coal minePAN Hongguang, PEI Jiabao, HOU YuanbinOver View49-5410An information interaction method for smart mineHU Wentao, ZHUO Minmin, ZHAO Lichang, ZHANG XiaoguangAnalysis Research55-6011Discussion on construction and key technologies of intelligent mine from production perspectiveLUO Mingkun, LI Sheng, FAN ChaojunAnalysis Research61-6812Optimal energy saving control of mine coal transportation system based on machine visionGUO Weidong, LI Ming, KANG Junming, LEI Meng, ZHU MeiqiangExperimental Research69-7513Mine flood perception method based on spatiotemporal generalization modeling in Gabor domainCAO YuchaoExperimental Research76-79,8614Deformation and failure characteristics and support technology of deep roadway with composite roofQIN Haizhong, FU Yukai, WANG TaoExperimental Research80-8615Calculation and simulation research on leakage magnetic field of broken wire damage of wire ropeDOU Liancheng, ZHAN WeixiaExperimental Research87-9116Coal mine dual prevention information system based on Apriori algorithmHUANG Yuxin, YAN Zhenguo, FAN Jingdao, LI ChuanExperience Exchange92-98,11817Measurement and analysis of underground ultra wide band signal path lossDOU Xueli, NIU Yonggang, YIN Peng, LI Jingsheng, LUAN Liangliang, LAN XiangExperience Exchange99-10318Research on stress distribution characteristics of coal pillar in fully mechanized caving faceLIU Ming, CAO Minyuan, LI BoExperience Exchange104-108,11319Networking architecture of large-scale electromechanical equipment in coal mine based on RedisCHEN QingExperience Exchange109-11320Video monitoring system of mine working face based on wireless multi-hop networkLIANG HongExperience Exchange114-118 