1Finite Element Analysis of the Middle Trough of Scraper Conveyor on Extreme Working ConditionCAO Chengming, LI Shengwen, PAN Xingdong, GUO Bin, GAO Qiang, YUAN BinDesign and Research1-52Design of the Wireless Monitoring System for the Frequency Converter on ShearerLI QingDesign and Research6-93Analysis of Key Design Points of Hydraulic Manifold BlockZUO Gangyong, XU ShuangyongDesign and Research10-11,154Study Design of Bolt Reloading Unit Based on TRIZ TheoryZHANG JunDesign and Research12-155Simulation Analysis of Mining Mixer Truck in Virtual Pavement ModelLI WenjunDesign and Research16-206Analysis of Insulator Leakage Current under Fog and Haze Based on Support Vector MachineXU Yunzhi, XU Xiaowu, BIAN NingDesign and Research21-257Vibration Response Analysis of Deep Groove Ball Bearing with Fault Based on ADAMSWU HengjianDesign and Research26-298Design of an Additional DC Power Supply Detection CircuitJIAO XiaofengDesign and Research30-329Design of AC Zero Crossing Detection Circuit Based on Voltage Comparator LM339GONG Yinmiao, LU Xikun, XU Shuai, FAN Qiufeng, LU ChunhuaDesign and Research33-36,3910Optimization of Modification Coefficient of High Speed Planetary Transmission Gear for Driving Mechanism of RoadheaderZHANG Jingbo, FAN ZhifengDesign and Research37-3911Design of Pressure Sensor Based on Constant Current DrivenGU WeiDesign and Research40-4212Study on Electrode Arrangement of Dual-Frequency Induced Polarization Method Applied in Advanced Detection of Water-Bearing or Water-Conducting StructuresWU Chunye, ZHANG ShuangyuIssue Discussion43-45,4913Simulation Study on the Working Mode of Single-Ended Flyback ConverterZHANG Difan, YANG Hansheng, LIU LiIssue Discussion46-4914Failure Analysis and Improvement Measures of Guiding Slipper in ShearerYANG BaocaiIssue Discussion50-53,5715Research on Type Selection Technology of Dust Removal System in Coal Mine Tunneling RoadwayWANG FuqiangIssue Discussion54-5716Analysis and Discussion on the Factors Affecting the Harmonic Loss of TransformerZHANG ZhenzhongIssue Discussion58-6017Discussion on Key Technologies of Designing Downward Belt Conveyor with Large Inclined AngleDONG Erjing, LIU FuchaoIssue Discussion61-63,6618Application of Semi Supervised Classification in Transformer Fault DiagnosisHE NanaIssue Discussion64-6619Research on Fault Monitoring System of High Voltage Circuit Breaker Based on LabVIEWLU Xikun, GONG Yinmiao, XU Shuai, Fan Qiufeng, LU ChunhuaIssue Discussion67-7020Application and Analysis of Radio Frequency Identification Technology in Identification and Location for Underground PipelinesTIAN KejunIssue Discussion71-73 