1Basic Information Platform of Digital Mine Based on 3DGIS and Its ApplicationGUO JunAchievements of Science and Research1-52Design of On-line Parameters' Detection Device for Underground Monitoring SubstationWANG Xue-ming, XU Juan, ZHANG Li-bin, WANG Cong-xiaoAchievements of Science and Research6-83Realization of Power off Control in Coal Mine Underground by Hand-held Wireless Mobile TerminalZHOU Pan-dongAchievements of Science and Research8-124Application of Fiber-optic Repeater in CDMA Wireless Communication System of Coal Mine UndergroundAchievements of Science and Research12-145Feasibility Analysis of Application of I.S.Type Explosion-proof System of Field Bus in Automation System of Coal MineWANG Chun, WANG Qi, YU Chao-longTechnology Discussion14-166Design Research of Digital Optical Transceiver in Mine Network PlatformSUN Hui, XIE Zi-dian, JIN Zhu-pengLaboratory Research17-217Simulation of a Harmonic Detection Algorithm of Power Quality Control Device for Coal Mine and Its RealizationYU Guang-bin, LI Tai-feng, WANG Yu-fengLaboratory Research21-258Detection Model of a Mine-used Infrared Gas SensorLI Yi-nan, LIU Yong-ping, Wang Ru-linLaboratory Research25-289Application of an Improved Wavelet Algorithm in Fault Line Selection of Leakage Protection System of MineGUO Rui, WU QiongLaboratory Research29-3210Simulation Research of Bolt Supporting of Physical Tunnel in Tectonic Stress Field Based on ANSYSWANG Run-sheng, KANG Zhi-qiang, ZHOU Rui-long, YU Yang, GUO Jian-wenLaboratory Research32-3611Simulation Research of Cutting Process of Cutting Head of Longitudinal-axial-roadheader Based on MatlabSHI Xiu-bao, LU Mi-qi, CAO Zhi-juanLaboratory Research37-3912Simulation Research of Direct Torque Control System with Speed-sensorlessJI Xuan-de, XUE Ya-bin, XIN Yi-boLaboratory Research39-4313Sensorless Vector Control of Permanent Magnet Synchronous Motor Based on Method of High-frequency Injection MethodYE Sheng-wen, GU Shan-mao, LI Guang-chao, FANG Jing-huanLaboratory Research44-4714Research of PMSM Sensorless Control System Based on EKFCHEN Zhao-rong, ZHANG Hui, ZHANG Qian-qian, YU Rui-wen, LI Wen-feiLaboratory Research47-5115Safety Standardization Evaluation System of Tailing Reservoir Based on Analytical Hierarchy ProcessYUAN Mei, ZHANG Yi-ping, WANG Zuo-qiangLaboratory Research52-5516Analysis of Comprehensive Diathesis for Safety Production of Mine Workers Based on Fuzzy Comprehensive EvaluationLaboratory Research56-5817Application Research of a New SMITH Pre-estimation Control Algorithm in Main Steam Temperature Control SystemLaboratory Research58-6018Development,Analysis and Comparison of Technologies of Mine-used Automatic Air DoorsWU Hai-wei, ZHANG Yi-ming, WU Zhen-gyan, JIANG Shu-guang, WANG Lan-yun, WANG JieOverview61-6519Design of Digital Broadcast Telephone System of Coal Mine Based on CAN BusDING En-jie, MIAO Shu-guang, ZHU Wei-wei, ZHAO Zheng-fang, LI Yan-weiExperience Exchange66-6920Design of Gas Monitoring System of Coal Mine Based on Wireless Sensor NetworksWEI Ning, YIN Hong-sheng, LIU Xiu-rong, HUA GangExperience Exchange70-73 