1Research of Transmission Characteristic of High-frequency Electromagnetic Wave in Incline ShaftSU Mao-di, WANG Jian-bo, QI Hui, YUWEN Jing-ze, ZHANG XinLaboratory Research1-42Research of System Framework of Coal Mine Safety Application GridSHEN Yan-mei, ZHANG Ya-tingLaboratory Research5-83Nonlinear Correction of Methane Sensor Based on Least Square Support Vector MachineLIU Rui-fang, MEI Xiao-anLaboratory Research8-124Research of DC Stray Current in Coal Mine UndergroundYIN Xiao-ben, FAN Di-pengLaboratory Research12-155Research of Dead-time Compensation Strategy of Three-level Inverter and Its ImplemenationHE Feng-you, MA Xiu-li, LI Na, YANG YanLaboratory Research15-186A New Method of Real-time Reading of Pointer Meter of Industry and Mine Based on Difference Image Processing and Angle-proportionment CalculationREN Jian-qiangLaboratory Research18-217Research of 3D Automatic Modeling Method of Mine Laneway Based on ArcGIS Engine and Its ImplementationWANG Xue-wei, SHAO Ya-qin, WANG Yun-jiaLaboratory Research22-258Research of Three-level Shunt Active Power Filter Based on SVPWMTAN Guo-jun, ZHANG Jian-liang, HAN Yao-feiLaboratory Research26-309Reseaqrch of Position of Cable Fault Based on Traveling Wave DetectionLaboratory Research31-3310Research of Trajectory Planning of Industrial Robot Based on VC++WANG Xiao-li, HOU Yuan-bin, WANG TaoLaboratory Research34-3711Design of Wireless Monitoring and Control System of Small Coal Mines Based on GSMRU Hong-fangTechnical Progress38-4012Design of Monitoing System for Coal Spontaneous Combustion Sources Based on Wireless Sensor NetworksDENG Ming, ZHANG Guo-shu, CHEN YunTechnical Progress41-4413Research of Key Technologies of Management System of Voice Interaction for Mine Ventilation SafetyTechnical Progress45-4814Design of Remote Monitoring and Control System of Environmental Parameters ofCoal Mine Based on Embedded Web ServerFANG Hong-ping, ZHANG Wen-chengTechnical Progress49-5215Design of Virtual Mine System Based on Virtual Reality TechnologyWANG Hui-binTechnical Progress53-5616Design of Multi-parameter Gas Detector Based on Softdecision Information Fusion and Its ImplementationTechnical Progress56-5917Research of Integration Technology of Monitoring and Control System of Mining AreaTechnical Progress60-6318Research of Rapid and Automatic Rendering of Double-line Graphics of Mine Ventilation Simulation SystemSHEN Long, WEI Lian-jiang, ZHU Hua-xinTechnical Progress63-6619Improvement Scheme of Monitoring and Control System Based on Modbus ProtocolTechnical Progress67-6920Design of Intelligent Current Protection System of Mine Power NetworkZHENG Li-junTechnical Progress70-74 