1Prospect of perception mine internet of things and its development trendYAO Jianquan, DING Enjie, ZHANG Shen, WANG GangAchievements of Scientific Research1-52Design of shaft boring machine control systemYANG Bingwen, FU Wenjun, LIU ZhiqiangAchievements of Scientific Research5-83Design of air flow switch sensor of air duct based on attitude recognition technologyZHANG YuanzhengAchievements of Scientific Research9-124Detection system for coal mine electrical inspection instrument with digital display based on machine visionYE Jingdong, ZONG Shousong, ZHU Meiqiang, LI MingAchievements of Scientific Research13-165Coal and gas outburst early-warning technology based on change of gas concentrationXU Xuezhan, MENG Xiangrui, ZOU YunlongAchievements of Scientific Research17-216Study on comprehensive risk assessment method for provincial coal mine accidentZHENG Wanbo, WU Yanqing, LI Xianming, XIAO YumeiAnalysis Research22-267Research status of monitoring and control technology of rapid coal loading systemWANG Yangyang, BAO Jiusheng, YIN Yan, TANG Linli, ZHANG TaoAnalysis Research27-328Study on outburst prevention effect of short range protective seam mining of Wangxingzhuang Coal MineTIAN Kunyun, SUN GuangzhongAnalysis Research33-379Path planning of rescuing robot based on improved artificial potential field methodTIAN Zijian, GAO XuehaoExperimental Research37-4210Study on industrial test of fully mechanized fast excavation technology of alternating with advancing or boltingWANG Chensheng, SU FangExperimental Research43-4711Fault diagnosis of shearer rocker bearing based on improved EEMD and HMMWANG XinggangExperimental Research48-5112A novel bidirectional DC-DC converterFANG Xupeng, ZHUANG Jianwei, LI HuiExperimental Research52-5613Experimental research of influence of coal particle size on initial speed of methane diffusionYANG Mengmeng, YUAN Mei, XU Lin, XU Shiqing, LI Chuang, WANG YuliExperimental Research56-5914Research on power quality comprehensive treatment for coal mineGUO SongmeiExperimental Research60-6415Study of character recognition of digital display instrument in coal mine substationHAO JianhuaExperimental Research64-6716Design of automatic control system of boom roadheaderWANG HongExperience Exchange68-7117Intelligent monitoring and control system for blind ventilation with long distance in shield construction of coal mine inclined shaftZHANG Dawei, XIN DelinExperience Exchange71-7318Application research of lifting wavelet transform in fault diagnosis of coal mine bearingWU Jian, HUANG XiaExperience Exchange74-7619Mine hoist knowledge management system based on WebWEN Sheng, DING Hua, LI Juanli, YANG ZhaojianExperience Exchange77-7920Sound signal feature extraction of mine roof percussion based on human auditory modelZHANG Tieshan, REN ZhongExperience Exchange80-82 