1Wireless Coverage Technology of Underground CDMA System Based on Leakage CableGU Yi-dongAchievements of Scinece and Research1-42Design of Emergency Stop Function of Electro-hydraulic Control System of Hydraulic SupportsZHANG Wen-jie, TIAN Mu-qin, SONG Jian-cheng, XU Chun-yu, XIN Chun-hongAchievements of Scinece and Research4-73Design of Mine-used Infrared Methane Sensor with Compensation of Temperature and PressureLIU Yan, ZHANG Li-bin, JIANG ZeAchievements of Scinece and Research7-104Design of Coal Mine Geological Data Management SystemGAO YangAchievements of Scinece and Research11-145Design of Integrated Transmission System of Audio, Video and Data for ShearerQIU Jin-boAchievements of Scinece and Research14-176Design of a Novel Mine-used Cableless Borehole InclinometerZHANG Dian-rongAchievements of Scinece and Research18-207Management Switcher and Design of Its Configuration SoftwareXU JieAchievements of Scinece and Research21-258Design of Multiplex Distribution Circuit of VGA Signal Based on CMOS InverterXU Yu-ming, HAN Yan, XU FeiAchievements of Scinece and Research26-309Research Progress of Detection and Automatic Matching Technique for Emulsion ConcentrationZHAO Si-hai, WANG Qi, LIU Zhi-qiangOverview30-3510Calculation of Coherence Bandwidth of Mine Wireless ChannelCUI Jie, XU Zhao, HUO YuLaboratory Research36-4011Experimental Study of Mine Transient Electromagnetic Overlapping Loop DeviceLI Yun-boLaboratory Research41-4412Analysis of Movement of Fire Smoke Flow and Determination of Route for Avoiding Disaster Based on Information Platform of 3DGIS Digital MineCHEN Rong-xiangLaboratory Research45-5113Design and Implementation of Σ-△ADC Converter Based on FPGAZHANG BoLaboratory Research51-5414Analysis of Enhancement Algorithms of Coal Mine Monitoring Image and Its RealizationYING Dong-jie, LI Wen-jieLaboratory Research55-5815Modeling and Simulation Research of Hoisting System of CraneYAO Yu-mei, NIU Chao, KONG Xian-huaLaboratory Research59-6216A Control System of Static Var Compensator Based on Biological Intelligence ControlZHOU Xiao-hua, YE Hong-tao, WANG Li-fang, LIU Sheng-yong, YUAN Hai-yingLaboratory Research63-6617Simulation Analysis of Power Quality Characteristics of Wind Farm and Control MeasuresHUANG Yong-wei, LIU Jun, ZHOU Xi-chaoLaboratory Research67-7018Direct Torque Control of Induction Motor Based on Sliding Mode Variable StructureHAN Ya-jun, YANG Xiao-qiang, ZHU Wan-ping, ZHOU YangLaboratory Research71-7419Research of Power Prediction of Wind Farm Based on Sequential Index Smoothing MethodLU Yong-fang, CHENG Zhi-lei, WANG Xiao-wei, LIU Ying-yingLaboratory Research75-7820Analysis and Test of Storage Algorithm of Card Reader of Personnel Positioning SystemZHANG Feng, XU Zhao, ZHANG Kai-tingExperience Exchange79-82 