1Study on the influence of indenter angle for the stress distribution in coal and rock under the action of point loadCHENG Haojie, QIU Shouqiang, TAN Yajie, ZHAI Yingda, ZHANG YujiangTest Research1-5,112Study on the ratio of filling slurry of thixotropic molybdenum tailings in coal goafLI Wei, GAO Shan, XU Youchun, YUAN Kekuo, CUI XiaoweiTest Research6-113Experimental study on methane generation from anaerobic degradation of coal by compound high-efficiency floraGONG Kaiyi, GUO Hongguang, ZHANG Yixuan, ZHANG JiayanTest Research12-17,224Research on the law and mechanism of hydraulic fracturing in steeply inclined coal seamWANG Fengchao, WANG Enmao, CHANG Bo, WANG GangTest Research18-225Study on early warning of instability failure of corroded yellow sandstone under freeze-thaw cycleZHANG Chen, KANG Zhiqiang, FENG Jiangjiang, WANG Zhilei, YAO XulongTest Research23-316Test research on diffusion law of tail gas(CO,SO2)discharged from trackless rubber-tyred vehicle in confined spaceXIA Yuanxiang, CHEN Xi, FAN Chaonan, GE Shaocheng, LI Zhigang, GAO FengliTest Research32-367Simulation research on spatio-temporal evolution of high temperature zone of spontaneous combustion of loose coal pileWANG Jianguo, ZHAO Sirui, WANG KangTest Research37-41,478Experimental study on the influence of liquid nitrogen cyclic freezing and thawing on the evolution characteristics of coal porosity and gas adsorption performanceXU Yang, LI DayongTest Research42-479Study on evolution law of stress-fissure field of overburden in contiguous seams extractionTANG Jianhua, WU Jinan, YU WeijianTest Research48-5510Study on support technology of gob-side entry retaining in isolated island coal pillar working face in the deep wellCAO Qinghua, JIANG Zhenpeng, WANG Fangtian, CHEN Huiming, YANG Yuefei, GENG JiyeApplication Techniques56-61,6711Research on path planning in closed long and narrow space based on obstacle scaleXUE Guanghui, LIU Shuang, LI Yuan, MA Chuang, HAN Sicong, HOU PengApplication Techniques62-6712Study on the optimization of reserved size of section coal pillar in shallow buried working faceGAO Xiaoxu, SHI Xiangqian, SHI Xinyu, GUO WeibinApplication Techniques68-73,8013Effect of air humidity on the characteristic parameters and thermal effect of coal spontaneous combustionCHI Keyong, FAN Yaoting, WANG Chen, WANG Junfeng, LI XiaopingApplication Techniques74-8014Evolution and control on deviatoric stress in surrounding rock of gob-side entry driving of filling face in deep continuous miningWANG Longjing, XING Shikun, YI Enbing, JIAO XiaojianApplication Techniques81-8815Study on modified model of water bursting coefficient based on Lawrence risk formulaZHU ZongkuiApplication Techniques89-9416Application study on fixed-point and fixed-length sealing of gas drainage drillings along coal seamZOU Shuangying, DU Lianying, ZHANG Kaizhong, ZOU Aoao, ZHANG LiangApplication Techniques95-9917Study on the technology of roof cracking caused by static crushing agent in Xiaochang Coal IndustryDING Hongqiang, YAN Guochao, KOU Kaibo, DONG Jinfa, XIANG HaitaoApplication Techniques100-104,11018Study on the development height of the water conducted zone in coal seam overburden of thin bedrock and thick loose layerLU ZhanjinApplication Techniques105-11019Research and application of roof strip weakening technology in isolated island working faceYANG Xu, WANG TaoApplication Techniques111-116,12320Gas emission prediction based on NMF-HGS-RFZHOU Xu, YANG Jiapeng, ZU Yuwei, ZHANG JiulingApplication Techniques117-123 