1Experimental Study and Theory Analysis on Influence of Electromagnetic Field on Gas ExplosionZHANG Hui, JIAN Cong-guang, LI Jing, LE Jun, GAO Jian-kangTest and Research1-3,132Study on Effect of Heating Rate on Spontaneous Combustion Tendency Characterization of CoalLIU Jian, ZHAO Feng-jieTest and Research4-63Inversion Algorithm of Pattern Amendment and Digital Filter Applied in Photoelectric Dust SensorMA Feng-ying, ZHAI Bo, WANG Fu-zengTest and Research7-94Design of Digital Gas Remote Monitoring NetworkHAN Ning, YAN Fei, DU Guang-wei, KAN Jiang-mingTest and Research10-135A Fire-new Solution Project for Coal Mine Disaster Gas AnalysisTechnology Experiences14-166Application of New Type Material for Fire Fight in NO.8 Coal MineWANG Gen-qing, ZHANG Yin-zhen, FU Bao-shanTechnology Experiences17-187Application of Coal Seam Mining Technology at Dynamic Pressure Appear and Fire AreaZHENG Wang-laiTechnology Experiences19-218Optimize Angel Modulation for Main Ventilator of Yungang Coal MineLU XiangTechnology Experiences22-239Application Practice of CO2 Extinguish Technology in Lailuan Group CompanyZHOU Feng-zengTechnology Experiences23-2610Application of Automatic Drainage System for Upper Conner Gas in Pansan Coal MineCHEN Li-minTechnology Experiences27-2811Identification Method of Coal Mining Damage TechnologyTAN Zhi-xiang, DENG Ka-zhongTechnology Experiences29-3112Application of Safety Monitoring and Controlling Comprehensive Information Platform System in Pingshuo CompanyFENG Xue-wu, TIAN Jin-ze, LIU ShengTechnology Experiences32-3413Design of Coal Mine Gas Detection Working Tracking and Management System and ApplicationTechnology Experiences35-3714Development of Steel Cable Directional Device for Small Winch Underground and ApplicationTechnology Experiences37-3815Measurement of Tension Equilibrium State for Lifting Steel Cable and AdjustmentZHANG Hong-wei, FENG Ming-leiTechnology Experiences39-4116Application of Dustproof Technology of Coal Seam Water Infusion Adding Permeable BarZHANG Hui-min, ZHANG Lian-fuTechnology Experiences41-4317Influence of Superpose Excavating Concentrated Stress on Coal and Gas OutburstZHANG Ming-jieIssue Discussion44-4718Maintenance Skills for Coal Mine Safety Monitoring SystemZHANG An-fuIssue Discussion48-4919Cause Analysis for +500 m Level Main Entry Water Outburst Accidence in Houyang Borefield of Shangjing Mine FieldBAO Dao-liangIssue Discussion50-5220Hydrogeology Character in Chaochuan Coal Mine and Countermeasures for Water ControllingWANG Xin-jun, ZHAI Jia-wen, PAN Guo-yingIssue Discussion53-55 