1Characteristic analysis and preprocessing of mine gas monitoring dataDONG Dingwen, QU Shijia, WANG HonggangAchievements of Scientific Research1-42Research of mine-used radar material level monitoring deviceYE JinjiaoAchievements of Scientific Research5-73Coal-rock interface detection method using ground penetrating radar and its experimentLI Liang, WANG Xin, HU Kexiang, ZHAO Duan, DING EnjieAchievements of Scientific Research8-114Design of a new type of intelligent lamp charging cabinetHUANG Hesong, WEI Guozhao, LIAO Yubo, ZHANG Renyuan, WEI LanleiAchievements of Scientific Research11-145Design of a new type of dynamic quantitative loading system of wheel loaderZONG Weilin, LI Jia, ZHANG Yajian, SHANG Yingmin, WANG Yechao, PEI Yi, CHEN DetongAchievements of Scientific Research15-186Design of optical fiber transmission system of analog signal under microwave drying coal environmentGAO Xianru, ZHOU XinzhiAchievements of Scientific Research18-217Design of control system of mine-used switched reluctance electric locomotiveLI RuijinAchievements of Scientific Research22-258Experimental research of surface potential of coal containing gas under cyclic loadingLIU Yongjie, CHEN Peng, ZHANG Liqiang, LI SiyaoExperimental Research26-309Transmission characteristics of very low frequency electromagnetic wave of mine-seam wireless through-the-earth communication systemJIA Yulong, LI Fengxia, TAO Jinyi, WANG PengExperimental Research31-3310Research of impact of two kinds of check valve on vibration characteristics of long pipelineLYU Fuyan, CAO Ping, JIA Xuankai, GAO Jie, HAO Xuedi, WU MiaoExperimental Research34-3911Design of automatic switchover control system without blowing-out of mine main ventilator based on fuzzy controlDONG SulingExperimental Research39-4312Research of selection of reference stations in mine area deformation monitoring based on JSCORSCHEN Zhongwei, CHEN Xibin, QIU Chuan, ZHANG ShubiExperimental Research44-4813A new fault diagnosis method of broken rotor bar of motorXU DongliExperimental Research49-5314Research of face recognition method of underground personnelYANG ZhuoExperimental Research53-5715Power balance control strategy for staircase modulation based on improved particle swarm optimization algorithmYE Manyuan, HUANG KaifengExperimental Research57-6216Research of early prediction method for exogenous fire in coal mineWANG Yuanbin, MA XianminExperience Exchange63-6617Analysis of danger source of mine gas explosion based on Petri netsYANG Mengmeng, YUAN Mei, XU ShiqingExperience Exchange67-7018An implementation scheme of GIS graphics system based on OpenLayersZHANG WeiguoExperience Exchange71-7319Nonlinear compensation of eddy current sensor based on wavelet neural networkFU Lihua, WANG GangExperience Exchange74-7720Software realization scheme for hot standby of coal mine safety monitoring and control systemHE Lei, LIU Huifang, LI XiaoExperience Exchange78-80 