1Influence of Gas Accumulation Scope on Destroying Characteristics and Propagation Laws of Gas Explosion Pressure Waves in a Blind TunnelCHENG Fangming, DENG Jun, CAI Zhouquan, LUO Zhenmin, XIAO Yang1-5,92Test Study on Influence Laws of Temperature upon Coal Gas Adsorption CapacityYANG Yinlei, CHEN Youqiang, GAO Jianxun, CHEN Wei6-93Influence of Sectional Coal Pillar Width of Protective Seam on Pressure Relief Effect of Protected SeamQI Feng10-13,184Research on Determination of Effective Gas Drainage Radius of Boreholes by SF6 Tracer Method and Numerical SimulationCHEN Hui, NIU Jianchun, LI Zhilei, LI Wenming14-185Experimental Research of Mine Polyurea Spraying MaterialFAN Shulan, YANG Renkai, LIU Qing, XU Xiangbin19-226Design of Underground Electric Fence Based on Accurate PositioningDAI Jianbo23-26,307Development and Experimental Research of ZYW-4000 G High-speed Drilling MachineXIN Dezhong27-308Design and Implementation of Mine Low-frequency Wireless Voice Communications SchemesKANG Yueming31-33,379Design of H2 S Monitoring Node Based on Wireless Sensor NetworkSUN Shiling, ZHAO Qingchuan, ZHANG Yuanzheng, GUO Qinghua, ZHENG Fangfei34-3710Coal Mine Gas Emission Prediction Based on IQPSO-BP AlgorithmCHENG Jiatang, AI Li, XIONG Yan38-4111Research on Key Factors of Moist Shotcret Machine for Dust Control and Its ApplicationLI Dingfu, LIANG Aichun, WANG Weili42-44,4812Control Design of Dynamic Pressure of Upper High-strength Rock Beam in StopeLIU Sili, WU Shiliang, ZHAO Jiyu45-4813Optimization and Application of Rock-bolting Parameters for High-stress Roadway in Ganzhuang Coal MineLU Jingzheng, WEI Fei, MA Peng, YANG Ke, SHI Deqiang, WANG Bo49-52,5614Adjustment Demonstration and Application of First-mining Seam of Outburst Coal Seam Group in Xinglong Coal MineQING Qichao, CHENG Guang, ZHANG Fei, LIU Zhiwei53-5615Application of One-way Ribbed Beam in Roadway Crossing Support Based on Flexible Support PrincipleSHI Bailei, DAI Jun, ZHANGSUN Along57-59,7116Combined Detection of Mine Water Disasters with Various Geophysical Prospecting TechniquesQIU Zhanlin, CHEN Wanhuang, BAO Daoliang, LIU Yaohua, FENG Jinwei, HUANG Congming60-63,6717Research on “Three-in-one” Compound Stowing Supporting Technology for Soft Rock Roadway in Deep MineWANG Zhigen64-6718Application of Mine Comprehensive Geophysical Prospecting Technology in Advanced Detection of Concealed Water-bearing StructureYUAN Dezhu68-7119Numerical Simulation on Instability Mechanism of Room Mining GobLIN Huili72-7420Numerical Simulation and Analysis on Displacement Variation of Overlying Stratum in 1252 Working Face of Yangliu Coal MineLIAN Youhong, DENG Tao, CAI Yinying75-78 