1Research on retention of waterproof coal column in collapse column based on limit equilibrium theoryZOU Guanghua, YANG Jiannan1-62Research and practice of comprehensive fire prevention and extinguishing technology in 130203 fully mechanized caving faceHUANG Xu, HE Wei, JIANG Yanbin, ZHANG Qinglong, XU Haitao7-123Numerical simulation study on air leakage law in goaf of Y-type ventilationZHOU Xiabing, CAI Feng, FENG Juqiang13-194Research on simulation and optimization of mine ventilation based on VentsimCUI Minghao, WANG Yuehong, WANG Kai20-265Research on the size reservation of protective coal pillars in shallow thick coal seam roadwayTIAN Ke27-346Analysis on phenomenon and regularity of additional horizontal movement in working face 1414(1)Guqiao coal mineCHEN Yuanfei, WANG Lei35-437Research on stepper motor control algorithm of emergency rescue robot based on BP-PIDLIU Weijia, HU Xingzhi44-488Gold nanoprobes for the detection of hydrogen peroxide in hazardous chemicalsGU Xiaoyu, ZOU Yuxin, YANG Li, ZHAO Nannan, CHAI Zhihua49-539Research on low-overhead quadruple-node-upsets hardened latch based on DI feedback interlockWANG Jun, XU Hui54-62,8410Research progress and hot spot analysis of water body identification in remote sensing imagesCHEN Zhenguo, LU Ruifang, REN Weikang, LIU Xiaoqian63-7611Finite element simulation analysis of mass concrete foundation with embedded cooling water pipeJU Youran, MA Haibin77-8412Catalytic reduction of dye pollutants by gold nanoparticles in chitosan hydrogelWANG Yan, ZOU Yuxin, CHEN Yang, XU Nanxing, CHENG Yutong, CHAI Zhihua85-8913Experimental study on the effect of ammoniumdihydrogen phosphate on the flame structure of methane explosion based on detonation suppressionXU Jingde, LI Ruide, ZHANG Yanwei90-9914Study on the influence of high temperature on the health of personnel in coal mine chamber and the temperature limit valueLI Ji, YU Yue, SONG Fumei, ZHOU Susu100-10515The risk assessment of land subsidence disaster in the northern region of Langfang cityLI Haijun, LIU Hongtao, DONG Jiubo106-11116Research on assessment method of driving safety level of mining trucks under starting conditionsXING Dan, ZHANG Ruixin112-11717The application of digital twin technology in safety engineering practice teachingNI Lianqin, LI Shufang, GAO Jie, YUAN Anying118-124 