1Simulation Study on Influence of Flow Change of Oxygen-contained Coal-bed Methane upon Liquefaction ProcessZHU Jing, WANG Changyuan, ZHANG Wu, REN Xiaokun1-42Study on Influence of Surfactant upon Characteristics of Dust-removal Water-mist FieldCHEN Peng, GUO Shilong5-83Analysis on Influence of Sandstone Layer Number in Overburden Strata upon Mining Subsidence and Its Numerical SimulationSONG Shijie, ZHAO Xiaoguang, WANG Shuangming, ZHAO Lu9-12,164Study on Coal Gas Desorption and Release Tendency at Atmospheric PressureWANG Chunsheng, QIN Xianli, SHOU Jipeng, LIN Kezhuo, LIU Zhigao, REN Siwei13-165Experimental Study on Instability Features of Roadway Sides under Action of Strata StressDU Chunzhi, WANG Dongwu, QIN Hao, FU Weitong17-20,256Research on Deformation Failure Mechanism and Control Technology of Soft Coal Roadway in Yuwu Coal MineLI Shugang, CHENG Xiaoyu, LIU Chao, ZHANG Tianjun, XING Lijie, WANG Hui21-257Study on Influence of Coal Seam Water Infusion Pressure upon Infusion EffectLUO Dayong26-28,328Test Study on Permeability Enhancement by Deep-hole Controlled Pre-splitting BlastingCHEN Yang29-329Research on Self-adaptive Positioning Technology for Rod-feed Mechanism of Remote-controlled Drilling MachineXIAO Yuqing, WANG Yu, CHEN Songlin33-3610Design and Implementation of Coal Mine SIP Communication Based on SOPCZHU Zhengjiang, YUAN Yiling, JIA Zhiqi37-3911Optimization Design of Sealed-head Structure of Plate-fin Heat Exchanger with Flow-guiding WingYAO Chenglin, ZHANG Hao40-42,5512Analysis on Ability of Using Ground Transient Electromagnetic Technology to Detect Coal Mine Water DisasterXU Yangcheng43-4613Study on Rupture Law of Overburden Strata and Parameter Optimization of High-level Borehole in Fully Mechanized Coal FaceCHEN Aihe47-50,5514Research on Surrounding Rock Pressure Relief in Deep Roadway by Borehole and Its Control TechnologyZHENG He, WANG Meng, XU Shaohui51-5515Application of Mine High-density Resistivity Method in Detection of Water-filled Karst FissuresHUANG Xiaorong56-58,6816Study on Roof Control Technology for Withdrawal Passageway in Fully Mechanized Coal Face with Large Mining HeightYANG Huibin, WANG Zhigang, ZHAO Yinhu, SONG Xiaochao59-61,6817Investigation and Analysis on Regional Outburst Prevention Effect Aimed at Upper Protective Seam Extraction in Wangjiazhai Coal MineYANG Chundong62-6418Study on Mechanism of Water Inrush from Fault in Ganhe Mine FieldWANG Wenjun65-6819Optimization Design of Ventilation System of Wulan Coal Mine Based on VentsimLIU Yuling, ZHOU Heping, SU Zhe69-71,7520Gas Control in Gas Enrichment Area with Igneous Rock Intrusion during DrivageLI Yong, YAN Haijun, LI Hongzhen, LIU Deyin, TIAN Haitao72-75 