1Analysis of the whole process of grouting sealing for gas extraction drilling hole sealing sectionYANG Weidong, HUO Zhonggang, SHU Longyong, HAO Jinwei, FAN Yongpeng, XUE WentaoTest·Research1-62Reliability of determination of gas content in coal seam with freezing coringWANG Qiao, WANG Zhaofeng, ZHANG Kangjia, FAN Daopeng, XING YiTest·Research7-123Study on time memory effect of coal gas emission in electrostatic fieldWANG Yajuan, MA Tao, WU PengfeiTest·Research13-184Experimental study on influence of stress environment on coal-rock adsorption deformation and permeabilityZHOU Feng, JIANG Yongdong, QIN Chao, LIU Zhengjie, LI Dong, XIE Yingliang, XIE ChenglongTest·Research19-23,295Laboratory determination method and application of sensitive index and critical value for coal roadway outburst predictionJIANG Chenglin, YU Qixiang, ZHANG ChaojieTest·Research24-296Coal facies characteristics and pore structure response of oil-rich coal in Yushenfu Mining AreaSHEN Yanjun, WANG Xu, SHI Qingmin, GUO Chen, LEI Fangchao, KOU Bingyang, MA WenTest·Research30-37,447Research on evolution law of coal pore structure damage under the action of freeze-thawXU Yang, HUANG Hui, CHU Yapei, HE Miao, GAN LijiaTest·Research38-448Experimental study on temperature field distribution in anthracite during water vapour injection under triaxial pressureSHI Xiaodian, FENG ZijunTest·Research45-509Experimental study on fire prevention and extinguishing of cryogenic inert gas slurryZHANG Xinhai, DOU Kai, ZHANG Guowei, CHENG Wangshou, LI Xunguang, ZHU Hui, ZHAO Bin, CHEN Fei, YANG ShaoxiongTest·Research51-5610Research on performance of new type cement slurry for water shutoff in coal mine roadwayLIU Huini, LI Xungang, LI Yanzhi, ZHANG Shuai, CHEN Pengcheng, WU Yue, FAN Zhenwang, TANG ChaoTest·Research57-6311Study on influence of permeable environment in filling area on performance of super-high water filling materialZHENG Ruijian, XIONG Zuqiang, LI XifanTest·Research64-6912Evolution and extension of fissures in hard rocks under double-hole expansion fracturingLI Tuanjie, MU Wenhui, YI Ruiqiang, XIAO Qu, HUA JunTest·Research70-7813Principle and application of coordinated action of rock bolt support plate composite componentWANG ZhaomingTest·Research79-8614Grouting and plugging technology of in-seam borehole methane drainageZHANG YunfengApplication·Innovation87-9115Study on fire prevention and control technology of long distance mining face in shallow depth and close distance coal seamYOU WenqiangApplication·Innovation92-9616Application of direct cooling deep enthalpy exhaust heat pump technology in No.2 air shaft of Xiaobaodang Coal MineYANG Zheng, YANG Guangyao, XIE Yongli, WANG Zhongqiang, LI Xiaolong, ZHAO TingjiangApplication·Innovation97-100,10517Classification and early warning technology of spontaneous combustion in Xinwei Coal MineHAN XiaojiApplication·Innovation101-10518Optimal and fast drilling technology for multi-branch horizontal grouting well in coal seam floor limestone layer in Zhaogu No.1 MineLIU Xiugang, WANG Yi, LI Peng, SONG YuboApplication·Innovation106-11019Sensitivity analysis of IEC spark test apparatusZHANG YongDesign·Development111-11420Design and test verification of test system for air-water combined power dust collectorXU Bin, CHEN Qinghua, JIANG Bingyou, TANG Mingyun, ZHAO Jun, LIN HanyiDesign·Development115-118,124 