1Study of Calculating Method on Coal Seam Gas Pressure with Thermodynamic TheoryWANG Zhi-liang1-32Experiment on the Recrudescence and Open Conditions of Mine Close Fire-zoneYANG Xiao-qiang, LI Nan4-73Research of Numerical Simulation of Ventilation Flow in the Air Return CornerCHEN Hai-yan, QI Yu-dong8-10,144Experimental Study on Aerosol Fire-extinguishing Agent to Inhibit Coal CombustionLUO Zhen-min, ZHENG Xue-zhao, DENG Jun, CHENG Fang-ming11-145Exit Velocity's Numerical Simulation and Field Application of High-Pressure Air CurtainCHENG Gao-feng, TAN Yun-zhen, HAO Ying-ge, MA Xu, JIA Jin-biao, KANG Li-li15-17,246Study of CH4 Electrochemical Sensor Non-linear Self-correction in Extended RangeWANG Xiao-zeng, YANG Jiu-hong, ZENG Hui18-207Numerical Simulation of Controlling the Gas Concentration in Fully Mechanized Top-Coal Caving Face Using Method of Guiding Wind and Rising Pressure by Windbreak21-248The Technical and Experience of Coal Core Coring of Exposing Coal Ventilation Shaft in Lu'an Mining Group Licun MineZHOU Yang, JIANG Cheng-lin, MENG Fan-long25-279Application of Grey Incidence Technique in the Analysis of Coal Mine Gas ExplosionSONG Yan, GUO Yan28-3010The Practice of Gas Controling Navigation System Functional Optimization in Zhengzhou Mining GroupZHAI Hua31-32,3511The Observation and Analysis of Gas Drainage Borehole Results in Adjacent Coal SeamWANG Yong-wen, WU Shi-yue, ZHANG Mei-hong33-3512The Application of Multi-Sensor Information Fusion in Gas MonitoringZI Xing-jian36-3813The Application of Parameter Estimation in Thermal Properties Test of Loose Coal39-4214Integrate Control and Prevention Technology of Thick Seam Spontaneous Combustion Based Injecting NitrogenWANG Chang-yuan43-4515CO Controlling in 5-103 Working Face of Pangpangta Coal MineQU Jian-guang46-47,5216Application of Fire Extinguishing Technology with Microcapsule Inhibitor and High Poser Foam in Coal MineMA Chao48-5017The Application of Integrated Fire Extinguishing Technology in Slicing Working FaceWEI Guo-shan50-5218Spontaneous Combustion Laws and Fire Prevention Technology in Mining Seams53-5519The Geological Guarantee Technology of Safety Mining above High Pressure Water in the First Liuzhuang MinePENG Long-chao, YUAN Zhong-bang56-5820Analysis on Gushing Water of Reture Air Shaft and Tunneling Technology in Xigu Coal Mine59-61 