1Design and Development of a Video Monitoring APP for Mobile Platforms in Coal MinesZHANG XiantaoDesign and Research1-62Development of Verification Device for Straightness Detection System of Working Face Based on Inertial NavigationZHANG Qizhi, LIU Cong, CHEN Zhongliang, LI XiangDesign and Research7-9,143Mobile Node Roaming Communication Method for BLE Multi-connection Network Adapting to Linear Space in MinesZHUO Minmin, ZHAO LichangDesign and Research10-144Design on Anti-electromagnetic Interference for Mining Infrared Temperature SensorsWANG ZhanDesign and Research15-195Design of Nitrogen Oxygen Separation Membrane Inspection DeviceWANG JizhengDesign and Research20-236Research on Coal Loading Performance of Coal Winning Machine Based on Discrete Element MethodZHANG QianyiDesign and Research24-277Error Processing of Real-time Coal Mine Oxygen Detection Data Based on Wavelet Threshold Function DenoisingZHANG Huaqian, YU QingIssue Discussion28-32,378Analysis on Test Methods for Large Capacity Lithium-ion Battery Equipment Protected by Explosion-proof EnclosuresZHANG Yajun, LIANG HongIssue Discussion33-379Research and Application on OOIP Design in Coal Mine Control SystemHONG Zhixin, JIANG Wei, JIA Wenqi, HAN ChaohuiIssue Discussion38-4210Design on Control System for WC130Y Support CarrierFANG Lei, XU Daiyou, TANG XianbingIssue Discussion43-4711The Method and Application of Rapid Extension of Advanced Reserved Support in Fully Mechanized Mining FaceZHAO XinIssue Discussion48-5112Development of Self-supporting Device for Large Slope JSDB WinchZHU TianlongTechnical Practice52-5513Development of an Efficient Coal Winning Machine for Hard Coal Seam with a Minimum Mining Height of 1.1 MetersGAO ZhanfengTechnical Practice56-5814Design and Application of Super Heavy Segmented Transition Groove StructureYANG XiaoliTechnical Practice59-6115Transformation of the Variable Frequency Speed Control System of the Mines Main Ventilation SystemWANG HaoTechnical Practice62-6516Natural Cooling Design of an Explosion-proof Electronic DeviceXU Dongdong, YANG Xiaofeng, TONG YuTechnical Practice66-6817A Brief Discussion on the Reform Practice of the Cutting Head of the Six Arm Heavy Hauling DredgerWENG Yongyuan, ZHUANG Fang, XU Bo, WANG Jinji, MA JianTechnical Practice69-72 