1Key Technologies for Design of Permanent Magnet Synchronous Motor for Driving Mine Transport LocomotiveYANG Jing, ZHAO MinDesign and Research1-42Research on the Test of Permanent Magnet Synchronous Motor for Coal MineLI BishengDesign and Research5-7,113Design of Self-Adaptive Control System for Hydraulic SupportNIU JianfengDesign and Research8-114Design and Implementation of a New Mine Telecontrol SwitchWANG LuDesign and Research12-145Power Integrated Automation System of Coal Mine SubstationLIU Hongying, WANG QiuliDesign and Research15-17,226Control System of Intelligent Scraper Conveyor in Coal Mine Based on Frequency Conversion TechnologyLUO Yonggang, FU RuilinDesign and Research18-227Overcurrent Protection Design of Relay Protection Device Based on PLCZHANG TianyuDesign and Research23-25,308Design of Train Hydraulic Self-Moving Device for Coal Mining Face EquipmentTANG Shufang, QIU Shangjin, CHEN MiaohuDesign and Research26-309Design of Power Supply System on Ventilating Fan in Coal MineXU LeiDesign and Research31-33,3710Design of High Voltage Power Supply Monitoring System for Substation in Underground Coal MineLI JianweiDesign and Research34-3711Microgrid Short-Term Load Forecasting Model Based on CEEMD and VHBFO_SVMZHAO MinIssue Discussion38-4312Contrastive Analysis on Safety Certification System of Mine Products between China and RussiaZHANG LianjunIssue Discussion44-4613Finite Element Simulation and Experimental of Torque-Limited Magnetic Coupler for MineCHEN Hongkui, SONG XingyuanIssue Discussion47-4914Design of Multipath Ultrasonic Gas Flowmeter Based on Multiple Reference WaveGAO WenpingIssue Discussion50-5615Application of Multivariate Linear Regression Method in AQI Analysis of Air Quality IndexXU Yunzhi, FAN Yingying, YAO Yufei, SUN Hongwen, YANG Yi, LI PengchengIssue Discussion57-6216Calculation Method of Maximum Material Cross-Section Area of Belt Conveyor with Deep GrooveJIA Qinghua, CHEN HongkuiIssue Discussion63-6617Application of Reverse Engineering in Surveying and Mapping of Involute Cylindrical GearsLIU XiaoxiaIssue Discussion67-7018Pattern of Gas Migration and Accumulation in Fully Mechanized Working Face with Large Mining HeightGUAN Jinhong, JI LeiIssue Discussion71-73,7719Technical Implementation of Cloud Service Platform for Coal Mine Safety Power SupplyWANG Gang, CHEN RenmingIssue Discussion74-7720Analysis of Linear Switched Reluctance Motor by Equivalent Magnetic Circuit MethodSONG Shuangli, LI ChenxiIssue Discussion78-80,83 