1The Application of Converter Technique and Fuzzy Control to Speed Governing System of FanXUE Yong-cun, LU Wan-jieDesign and Research1-32The Development of Heavy-duty Coal ShearerWU Yan, GAO Zhi-mingDesign and Research3-5,123Extensible Belt Conveyor with Large-capacity and Long Conveying distanceLIANG Ping, SHI Zhi, ZHU Li-ping, SONG Xing-yuan, WEI JunDesign and Research6-74The Analysis of Transverse Vibration of Conveying BeltHOU Hong-wei, JIA Bei-beiDesign and Research8-105Systematic Design Method of Speed-regulating Hydraulic CouplerHAN Dong-jin, MAO Wei-pengDesign and Research10-126Overhead High-speed Passenger CarrierLIU Zhi-liangDesign and Research13-14,177The Development of MG300/720-AWD ShearerYANG Qi-pingDesign and Research15-178Optimizing Parameters of Coal Mill with Artificial Neural Net-work and Genetic AlgorithmsCHANG Lü, MA Wen-sheng, YAO Shu-jianDesign and Research18-209Intrinsically Safe Phonic Warning System with Low Power Consumption Based on MSP430WU Zhen-yi, QIU Jin-bo, DONG FengDesign and Research21-2310Simulation and Optimization of Four-bar Linkage of Hydraulic SupportCAO Bi-de, QIN Dong-chen, NI He-ping, HU MinDesign and Research24-25,2811A On-line Monitoring System for Micro-Moisture in Transformer OilZHANG Wei-Cong, DAI Zheng-WuDesign and Research26-2812Application of Expert PID Controller in Electrical Haulage ShearerXIANG Zhi-wu, ZHANG Fu-jian, WANG DuoIssue Discussion29-30,3413Research of Embedded Broad-band Monitoring System for Fully Mechanized Coal FaceHUANG Zeng-hua, LI Shou-bin, NIU Jian-fengIssue Discussion31-3414Underground Automatic Collection System of ElectricityYANG Qing-haiIssue Discussion35-3615Key State Parameters for Coal-rock Interface RecognitionREN Fang, XIONG Xiao-yan, YANG Zhao-jianIssue Discussion37-3916Improve Loading-test Technique for Enhancing Reliability of Mining MachineryTAO ZhengIssue Discussion39-4117Multi-Level Train Hoisting Signal UnitLU Jian-baoIssue Discussion42-4318Causes of Maloperation in Differential Protection of TransformerLI Chuan-weiIssue Discussion44-4619The Pump Test System Based on Configuration PlatformWANG Lian, L(U) ZhenIssue Discussion47-4920The Application of EEP Hydraulic-electronic Control System for Large Mining Height SupportsCHENG Huai-dao, YUAN Ru-dongIssue Discussion50-52 