1Study on pore structure of coking coal based on low-temperature nitrogen adsorption and mercury intrusion methodQI Lingling, ZHOU Xiaoqing, PENG Xinshan, WANG Zhaofeng, DAI JuhuaTest·Research1-6,132Experimental study on high temperature combustion characteristic parameters of low rank coalYANG Mengdan, ZHANG LeilinTest·Research7-133Study on dust removing effect of air-water spraying nozzle at transfer point of belt conveyerXUE Wentao, HOU Maosen, HUO Zhonggang, FAN Yongpeng, HAO Jinwei, YANG Weidong, SONG Xin, TU QiTest·Research14-194Experimental study on the influence of carbon dioxide cracking on coal pore structureGUO Yaling, JIANG Zebiao, PENG Xin, FU Xiangxiang, WU Shaokang, QUAN Xiping, YANG XifaTest·Research20-265Influence of pulverized coal deposition on proppant-filled fracture conductivityZHOU YangTest·Research27-316Study on spontaneous combustion characteristics of weathered coal under variable oxygen volume fractionsSONG ShuanglinTest·Research32-377Research on parameters characteristics of coal spontaneous combustion under different oxygen conditionsLIU DongTest·Research38-448Analysis of mechanical properties and acoustic emission characteristic of coal-rock assembly under the effect of size and shapeZHANG Xueyuan, MA Haobin, XU Jianfei, DU PingpingTest·Research45-519Research on properties of gangue-based cemented filling materials and ratio optimizationXU Jianfei, ZHANG Luobin, GUO YabenTest·Research52-57,6310Study on particle size distribution of coal combustion under different conditionsHUANG Jingwei, REN Wanxing, KANG ZenghuiTest·Research58-6311Experimental study on directional drilling with high pressure nitrogen in soft-fragmentized coal seam of Wangpo Coal MineSUN Yongxin, ZHANG Jie, MA Qiang, HUANG Hanjing, ZHANG Yazhou, WANG JianqiangTest·Research64-6912Experimental study on the influence of circular hole obstacles on pressure overlapMA YunlongTest·Research70-7313Experimental study on creep failure mechanism of artificially frozen sandstone of Luohe Formation after thawingREN Jianxi, YI Gui, CHEN Xu, CAO XitailangTest·Research74-8114Law of overburden failure and roof water damage in Yuandatan Coal MineLIU Ruirui, LIU Yang, FANG Gang, LIANG Xiangyang, HUANG Hao, LIU ChenguangApplication·Innovation82-9115Joint monitoring of surface and underground micro-seismic monitoring technology in rockburst coalmineDU TaotaoApplication·Innovation92-9816Fine detection of collapse columns based on controlled source audio-frequency magnetotelluric methodREN Chenfeng, CHENG Jiulong, LIU Bin, XIN Chengtao, CHENG Peng, ZHANG Yuqi, JIANG ChenglinApplication·Innovation99-104,11017Research and application of combined pressure relief technology of roof hydraulic fracturing and deep hole blastingSI Ruijiang, ZHAO Lulu, ZHANG Guanghui, ZUO Jiehai, XU Lijun, ZHANG Aoze, JIAO Yang, LI DongliangApplication·Innovation105-11018Dense boreholes for weakening bottom layer by cutting roof and pressure relief of gob-side entry retainingLI Dongyin, ZHANG Jingxuan, ZHENG Lijun, WANG Shen, WANG Wen, HUANG ZujunApplication·Innovation111-118,12519Key technology of multi-system sensor layer equipment fusion in intelligent mineCHEN JieDesiga·Development119-12520Design of ZGZS1000 water sealing fire resistance and explosion venting deviceHUANG KehaiDesiga·Development126-130 