1Design of drilling parameters monitoring system of directional drilling rig in coal mine tunnelFANG PengAchievements of Scientific Research1-52Design of multi-protocol fusion gateway for underground coal mineZHAO Xiaohu, WANG Kuan, SHEN Xueru, TIAN Hao, YOU PengAchievements of Scientific Research6-123Design of intrinsically safe laser auxiliary light source for low-illumination video acquisitionLI Wenfeng, CAI PengboAchievements of Scientific Research13-174Research on key technologies of intelligent mining system for thin coal seamZHOU KaipingAnalysis Research18-21,865Multi-level and multi-granularity innovative design knowledge expression method of shearerLI Xing, DING Hua, YANG KunAnalysis Research22-276Feature extraction of vibration signal of roadheader based on singular value decompositionZHANG Linfeng, TIAN Muqin, SONG Jiancheng, HE Ying, FENG Junling, YANG XiangAnalysis Research28-347Data interpretation method of coal-rock interface detection based on ground penetrating radarMIAO Shuguang, LIU Xiaowen, LI Huaijiang, WANG XinExperimental Research35-398Research on filtering of electromagnetic measurement while drilling signal in underground coal mineKANG HouqingExperimental Research40-449A straightness measurement method of hydraulic support based on inter supports walking robotBAI Jinming, WANG Ranfeng, FU XiangExperimental Research45-5110Research on laser positioning matrix of straightness detection robot for hydraulic supportYANG Xuejun, WANG Ranfeng, WANG HuaifaExperimental Research52-5611Sequences selection research on over-voltage and over-current protection for intrinsic safety power supplyBAO Changjun, LI Jiping, GENG Wenjing, YU Zhixue, CUI ShijieExperimental Research57-6412An accurate estimation method for state of charge of mine-used energy storage batteryZHANG Jianwen, QI Minghui, WANG Zheng, YAN JiamingExperimental Research65-6913State of charge prediction for mine-used power batteryTAN Faming, WANG QiExperimental Research70-7514Partial discharge pattern recognition method for mine-used dry-type transformerTANG Jianwei, SU Hong, YAN Jiaming, ZHANG Jianwen, WANG Jinchuan, WANG EnjunExperimental Research76-8015Research on impedance matching method for magnetic resonant coupling wireless power transmission systemYUAN Shiqiang, CUI Yulong, WANG Jingqin, FAN Haoliang, FAN YachaoExperimental Research81-8616Optimal configuration of coal mine microgrid capacity for power generation with coalbed methaneCAO Na, GUO Peixuan, YU Qun, GUO BaodeExperimental Research87-9417Fault diagnosis method for mine hoist spindle system based on ontologyZHAO Xurong, LI Juanli, WANG XuewenExperience Exchange95-9918Mine-used pick wear measurement system based on shape from focusLI Ning, DING Hua, WANG YiliangExperience Exchange100-10319Research on on-board charging system of mine-used electric locomotiveYANG Jinxin, ZHU LongjiExperience Exchange104-108 