1Research on Identification of Drilling Medium Based on Vibration Signal While DrillingLI Yanzhong, HU Kun, WANG QianyuDesign and Research1-5,162Design of Unmanned Intelligent Vehicle Loading Station Control SystemSUN Dingding, WANG BojunDesign and Research6-103Cavitation Optimization Design of Unloading Valve in Large Flow Coal Mine Based on Orthogonal TestZHANG Yu, DONG RongbaoDesign and Research11-164A Calculation and Simulation Method Applied to Inner Rotor Permanent Magnet DrumLI Liu, ZHANG Fusheng, SONG XingyuanDesign and Research17-225Finite Element Analysis and Seriation Design of Reversing Drum of Belt ConveyorHAN Yue, QI ChuangangDesign and Research23-276Design and Application of Automatic Induction Anti-collision System for Mining Trackless Rubber Tyred VehicleWANG YudongDesign and Research28-317Research on Device and Method of Loading and Unloading Drill Pipe of Coal Mine Tunnel DrillLIU ZhiIssue Discussion32-358Improvement and Application of Ultrasonic Cross-correlation AlgorithmBAI SizhongIssue Discussion36-399Automatic cutting and forming technology for tunneling positioningHUANG Yi, MA Jinglong, ZHAO YanIssue Discussion40-4210Study on the Reliability of the Water Channel of the Coal Mining Electric Control BoxWEI HongqingIssue Discussion43-4611Evaluation of Uncertainty of Measurement Results of Impact Absorption Energy of Resin BoltXU RichengIssue Discussion47-4912Intelligent Ventilation and Dust Removal System of the Roadway-type Unattended Mining FaceLIANG DahaiTechnical Practice50-5213Gangue Filling Technology of Mine Abandoned TunnelQI Xiaofei, ZHAO Dong, LIN ZhanchuanTechnical Practice53-5614Application of Signal Confirmation in Auxiliary Shaft Hoisting Signal SystemLI HaipengTechnical Practice57-6115Design and Development of Intelligent Low Voltage Power Distribution System in Coal Preparation PlantLIANG HongTechnical Practice62-6516Discussion on the Design Scheme of Two-stage Rocker Arm Short Wall Shearer with Large Mining HeightHU JingTechnical Practice66-68,7317Design of solenoid valve controller based on STM32 F407 chipLIU HaoTechnical Practice69-7318Selection and Matching of Fully Mechanized Mining Equipment for"Three Soft Coal Seams"HAN Zhenhua, ZHAO HongxiaTechnical Practice74-7719Design of Crawler Running Device of Mining Large Diameter Gas Drainage DrillTAI WeiweiTechnical Practice78-80 