1Experimental study on high temperature oxidation spontaneous combustion characteristics of long flame coal in Fushun West Open-pit MineZHU Wei, LI Xing, LI Yue, ZHENG Zhigang, LI Kexin, ZHAO JingyuTest·Research1-7,142[Bmim][BF4]and nitric acid synergistic effect on microstructure of coalYANG Xiaoguo, HAO Jun, WEN YongzanTest·Research8-143Experimental study on imbibition effect of columnar raw coal containing gas under water-thermal coupling actionDUAN Zhengpeng, LI Zhiqiang, CHEN Xiangjun, ZHANG Shujin, LI GuohongTest·Research15-214Research on development law of Ordovician limestone karst in Xiaoyun CoalfieldYU Xiaoge, LYU Huadong, ZHANG Deming, LYU Changxing, QU LinyanTest·Research22-275Study on acoustic emission and mechanical seepage characteristics of low temperature treated coal rockWANG Jiangtao, ZHAO Yaojiang, ZHAO Liang, WANG Hao, WANG Jingrui, ZHANG HuijuanTest·Research28-346Research on creep damage model of coal and rock mass around hole with different moisture contentsZHAO Jianhui, XU HongyiTest·Research35-417Study on proppant migration and placement under sand-carrying action of clean fracturing fluidZUO Weiqin, XIE Kunrong, HAN Hongkai, LIU Yanwei, ZHAO Fajun, WANG YangTest·Research42-478Experimental study on tensile and shear strength of anthracite under supercritical CO2XIAO Chang, WANG Kai, ZHAN Ao, WANG WenweiTest·Research48-53,619Safe mining technology in 22206 working face under water of Huoluowan Coal MineGUAN ZhongApplication·Innovation54-6110High efficiency gas extraction technology of directional drilling hydraulic fracturing in stratified tectonic coal seamsHE MingchuanApplication·Innovation62-6711Deformation mechanism and rock burst prevention technology of service roadway under residual coal pillarWEI Hui, SONG Shikang, LI JieApplication·Innovation68-7512Water disaster characteristics and prevention technology of Jurassic coal seam roof sandstone in Yinxing No.1 Coal MineZHAO Shijun, LU Cunjin, BIAN Kai, LIU BaojieApplication·Innovation76-8413Application of screen tube hole protection technology in drainage engineering of weakly cemented sand mudstone interactive formationLI Panpan, HOU Enke, JI Yadong, ZHANG ZeyuanApplication·Innovation85-9114Collaborative application of directional blasting presplitting and flexible formwork concrete wall technologies in Chengzhuang Coal MineSI Xiaopeng, ZHOU ChangtaiApplication·Innovation92-10015Development of data acquisition instrument for coal and gas outburst based on wireless communicationWANG YanbinDesign·Development101-10616Research on coordinated control method of coal mine gas control informationZHANG ShulinDesign·Development107-11417Development and application of multi-field coupled seepage desorption experimental system for gas-containing coalCHENG Xiaoyu, CHENG Cheng, CHEN Long, GAO Han, ZHAO GangDesign·Development115-12018Design and implementation of portable positioning instrument based on Bluetooth transmissionWANG Wei, CHEN Xian, JIN YeyongDesign·Development121-12419Design of self-monitoring sensor for position and orientation of equipment in coal mineZHANG PengDesign·Development125-12820Research on calibration method of UWB card reader antenna in coal mineWEN XianpeiDesign·Development129-132 