1Design of 3D Virtual Mine Based on 3D GIS TechnologyGUO JunLaboratory Research1-42Application of a Fuzzy Inference Algorithm in Fire Detection of Mine-used Belt ConveyorGUO Jian, ZHAO Ming-ruLaboratory Research5-83Study of Ventilation Management System of Coal Mine Based on MapXGAO Guang-fa, QI Min-ju, HUANG Yong-hongLaboratory Research8-104Application of PLC Fuzzy Controller in Slime Water TreatmentWU Xin-cai, ZHANG Ming-xu, WANG NaLaboratory Research11-135Study of a New Model Monitoring and Control System of Safety and Production of Coal MineJIA Zong-pu, YANG bo, JIA Xiang-zhi, WANG Hong-meiLaboratory Research14-176An Improved Method of Detection of Harmonics and Reactive CurrentLaboratory Research17-197Study of Integration Technology for Control-network and Management-info-network of EnterpriseGONG Shang-fu, MA Guang-pingLaboratory Research20-238Application of ADO Technology in Data Storage of Monitoring and Control SystemLaboratory Research23-259Control of Thrust Inverse System for Vertical Transportation System Driven by Permanent Magnet Linear Synchronous MotorLaboratory Research26-2710Analysis of Winding Connection Way of Main Transformers of Power Transformer and Its SimulationLaboratory Research28-2911Analysis and Testing of Improving Transmission Distance of CAN BusYANG Fen, XU Zhao, CAO Mao-hongLaboratory Research30-3212Study of Data Extraction Technology in Data Warehouse and Its ApplicationGE Xin, DING En-jieLaboratory Research33-3513Wireless Communication Technology in Coal Mine and Its Development TrendCHENG De-qiang, LIU Wei, QIAN Jian-shengOverview36-4014Robot and Full Automation of Coal MineLI Dong-xiao, LI Yan-xueOverview40-4215Fuzzy Control System of Gas Pumping-exhaust Treatment Based on PLCZHANG Hao, LI Zhen-bi, JIANG Yuan-yuanTechnical Progress43-4516Application of Frequency-conversion Speed-adjustment Technology in Gas Exhausting in Coal Mine UndergroundSHANG San-jun, SONG Jian-chengTechnical Progress45-4817A Monitoring System of Coal Mine Gas Based on Wireless Sensor NetworkTechnical Progress49-5118Wireless Remote Measurement System of Drill Hydrology Based on GPRSXU Le-nian, ZHEN Yan-xiang, YUN Yu-liangTechnical Progress52-5519Model SCQY Real-time Silt Cleaning System for Mine SumpMIAO Yun-jiang, WANG Xiu-yuan, KANG Sheng-caiTechnical Progress55-5620Design of Centralized and Decentralized Automation Monitoring System of Flashboard and Its ApplicationTechnical Progress57-59 