1Research on Method for On-line Diagnosing Stator Winding Faults in Explosion-proof MotorYAO Qi, ZHANG Jian-wen, ZHU Ning-hui, YANG Li, LU Qing, WANG LinTest and Research1-52Experimental Study of Design on Roadways of Bolt-mesh Support in Tiechanggou Coal MineCHEN Jian-qiang, SHAO Xiao-ping, SHI Ping-wuTest and Research6-83Establishing Forecasting System for Coal Spontaneous Combustion by Method of Gas AnalysisWANG Fu-sheng, ZHU Ling-qi, ZHAN Jia-yong, GUO Li-wenTest and Research9-114Application Effect of Air Curtain in MineXIE Jin-liang, CHEN Chun-sheng, WANG Hua-pingTechnology Experiences12-135Cause Analysis of Gas Emission Abnormally by Influence of Atmospheric Pressure Change in Gob and Controlling TechnologyLI Zuo-quanTechnology Experiences14-166Application of Infrared Diagnosing Technology in Outburst Face PredictionSUN Ji-ping, LI Ying-chunTechnology Experiences17-207Analysis on Migration and Distribution Rules of Gas Emission in GobLI Shou-guoTechnology Experiences21-228Safety Mining Technology in Gradual Change Mining-lengthen Full-mechanized Mining Face with Outburst HazardLIU Wei, WANG Er-dong, HUANG Ji-liangTechnology Experiences23-259Application of Gas Drainage Technology by High Position Horizontal BoreholeHU Dian-mingTechnology Experiences26-27,3310Application of Least Squares Method in Gas Emission Volume Prediction in Mining FaceLI Qing-mingTechnology Experiences28-3111Innovation of Coal Mining Method and Management Method of Hard Roof in Longma Coal MineLIU Hui-bin, KONG Xiang-yiTechnology Experiences31-3312Technology of Bolt-mesh-anchor Supporting in Steep Coal RoadwaysYU Xiao-liTechnology Experiences34-3513Safety Analysis for Hydraulic Coal Mining Production System in Kongzhuang Coal MineWANG Wen-chao, LIN Bo-quanTechnology Experiences36-3814Application of Wireless Radio Frequency Identification Technology in Mine ManagementSHAO Rong, YANG ChongTechnology Experiences39-4015Design of Impendence Match for High Frequency Power Amplifier of Mine Mobil Communication SystemDONG WenTechnology Experiences41-4316Break Device under Special Condition,Overwind Protection for Vertical Shaft Lifting SystemZHAO Ting-zhao, ZHOU Ke-jia, ZHOU Xiu-long, YU Li-minTechnology Experiences44-4617Design and Achievement of KJ208 Underground Staff Location Tracking Management SystemZENG Wei, LI Xiao-gang, ZHENG Que, ZHANG Liang, CEI Hong-mingTechnology Experiences47-4918Probing into Methods of Mitigation Oxygen Creation Velocity ,Delaying Effective Service Time of Chemical-oxygen Self-help DeviceMA Yun-long, LIU Yi-ping, YU Bo-longIssue Discussion49-5119Probing into Safety Using of Mine High-voltage Load SwitchYANG Wen-zhong, ZHU Shi-an, WANG TaoIssue Discussion52-5320Probing into Methods of Performance Testing of Antifogging Agent for Oxygen RespiratorYANG JinIssue Discussion54-55 