1Synergistic wetting effect of composite surfactant on hydrophobic coalLIN Minglei, LIU Jianguo, JIN Longzhe, WANG Tianyang, OU Shengnan, ZHANG Hongyue, DING Yao, CHEN ChanglingMine Atmosphere and Gas Control1-102Research progress of secondary biogenic coalbed methane in ChinaJIAN Kuo, FU Xuehai, XIA Daping, FENG Ruizhi, LI Mi, JI XiaofengMine Atmosphere and Gas Control11-213Morphological characteristics of hydraulic punching holes and optimization of gas extraction parametersLIU Xiao, JING Tianxiang, XUAN Dequan, HU Shixiong, LI Yong, XU SenMine Atmosphere and Gas Control22-284Research and application of stress disturbance fracturing technology in complex formations in Guizhou ProvinceLOU Yi, HU Haiyang, JIANG Bingren, LI Yukui, CHEN Jie, YANG Fuqin, SHAO LinjieMine Atmosphere and Gas Control29-355Influence of unloading confining pressure rate and gas pressure on mechanics and seepage properties of raw coalCUI JunfeiMine Atmosphere and Gas Control36-426Construction and practice of geological condition evaluation system for underground coal gasification in closed coal minesYIN Quanzeng, CHEN Zhongshan, HOU Tengfei, LIANG Jie, GENG Lijuan, LI Bo, LIANG Junlong, SONG PengyinMine Atmosphere and Gas Control43-507Study on temporal and spatial distribution and treatment of"U"ventilation gas in gob-side entry retainingZHANG Zeyu, QIAO Yonggang, LI Haojun, LUO Tongtong, GUO Qiang, LI LianghongMine Atmosphere and Gas Control51-598Prediction of gas emission based on PCA-SAPSO-BP neural networkLIU FengMine Atmosphere and Gas Control60-689Study on ventilation technology for open-type TBM construction of extra-long inclined shaft in coal mineZHANG Lulu, YANG Ming, WANG Songqing, NIU Bin, CHA Wenhua, LI Mingjing, DENG Xin, YANG XinwenMine Ventilation and Fire Control69-7610Molecular simulation study on adsorption of C2H4 in bituminous coalWEN Hu, LIU Mingyang, TANG Rui, ZHANG Duo, FAN Shixing, LI Jie, LI ZhuofengMine Ventilation and Fire Control77-8211Exploration technology of integrated air leakage channel of shallow buried coal seam in northern Shaanxi ProvinceWANG Haijun, WU Yan, MA Liang, CHEN Chongfeng, SUN Baoping, WANG Xiangye, WU Minjie, LIU ShandeMine Ventilation and Fire Control83-9012Study on isotopic indexes of CO and CO2 in low temperature oxidation of coalLIU Xiangqun, WANG Fusheng, ZHANG Chaoyang, DONG Xuanmeng, GAO ZhanxiangMine Ventilation and Fire Control91-9613Application status and development direction of personal cooling garments in high temperature mineLI Yue, JIA Jie, TIAN QiMine Ventilation and Fire Control97-10214Zonal prevention and control technology for rock burst in asymmetrical pressure-relief working face under protective layerOUYANG Zhenhua, ZHOU Ranran, SHI Zengzhu, YI Haiyang, YANG Yong, WANG Qi, MA Hongjun, DING WeiMining Pressure and Strats Control103-11015Prevention of rock burst during initial mining of deep overhand mining island working faceQIN Zhongcheng, ZHAO Xitong, ZHAN Zhaowei, WANG Yanmin, GAO ChaoMining Pressure and Strats Control111-11816Analysis of diffusion law of dynamic water grouting in crack based on time-varying viscosityZHANG Jiafan, HUANG Sicong, LIU Yang, QIN Xiangrui, WANG Fuyu, ZHANG HuimeiMining Pressure and Strats Control119-12517Analysis of diffusion effect and influencing factors of anchoring force of arched rock bolt support plateYAN Ruyu, NING Jianguo, ZHANG Zhi, SUN Guoqing, DU MinghaoMining Pressure and Strats Control126-13118Study on narrow coal pillar width and surrounding rock control technology of gob-side entry driving with soft and broken composite roofZHANG Wudi, TAO Hongfei, YANG Jie, WANG Yue, CHANG ZhiguoMining Pressure and Strats Control132-13919Evolution characteristics analysis of temperature-stress field in the early stage of borehole precast construction in western ChinaWANG Chen, YAO Zhishu, DIAO Naihao, WANG Jiaqi, QIAO Shuaixing, XU YongjieMining Pressure and Strats Control140-14720Research on time-varying evolution law of overburden stress field and fracture field in shallow coal seam miningDU Minghao, NING Jianguo, WANG Jun, SHI Xinshuai, LIU Guojian, YANG FuqiangMining Pressure and Strats Control148-155 