1Analysis of the present situation of hole sealing technology for coal seam gas drainageCHEN Xue-xi, LIU Zhi-qiang, TUO Xue-na1-62Application of FLACS in the Study of Numerical Simulation of Gas Explosion in Confined SpaceXU Jing-de, LI Hui, HAO Xu7-113Experimental research on permeability increasing effect of hydraulic flushing for low permeability soft outburst coal seamWANG Yu-jie, Yang Ji-dong12-154Research on the Effect of Seam Water Injection on Initial Velocity of Gas EmissionJI Dan-ni, ZHANG Kai16-195Wind velocity field simulation analysis of mechanized coal mining face in Yangchangwan Coal MineLIU Yu-zhuo20-236Analysis of ventilation reconstruction scheme in the later stage of optimization in Pingdingshan No.4 Coal Mine based on VentsimXU Ming-wei, ZHANG Lin, ZHANG Yong, TANG Zhou24-297Study on Windows-Based Software for Mine Ventilation Network SolutionQI Rui-chen, XU Jing-de, PENG Xing-li30-358Study and application of temporary support device for fully-mechanized roadway heading faceZHAO Qi-feng, ZHOU Tian-jin, HUANG Gang, GUO Jing-zhong, LI Hao36-399Simulation study on the influence of coal pillar's compression amount on surface subsidenceDING Jian-chuang, CUI Xi-min, SUN Cai-min40-4610The Ordovician limestone aquifer under the steep coal seam mining safety evaluation research on prevention measures of water disasterWANG Guo-yu47-5211Theoretical Analysis and Numerical Simulation Study on Coal Body Meso DamageZHAO Xing, MA Shang-quan53-57,6112Present situation and suggestions of coal mine emergency rescueSHANG Zhen, ZHANG Hong, MA Han-peng58-6113Design of remote air particulate matter content monitoring system based on LabVIEWLIU Yong-tao, LIU Jia, XIA Xu-hong, LI Yu-hua, LIU Hao, Huo Qing-zhou62-6714Occupation Adaptability Test and Selection System's Building For Large Coal Mine Machine DriverLIU Xiao-jing, MA Shang-quan, TANG Zhou68-71,8015Realization of Remote Upgrade of Monitoring Terminal Program Code Based on STM32 MCULI Yong, LI Fu-ling72-7616Design of remote monitoring and control system for highpower laser cutting machineBU Xiang-li, XU Bin, LI Xiao-Ping, LI Guan77-8017Study on Deep Drawing Process of Dual Phase Steel Square BoxFENG Hai-mei, DONG Rui-hua, YOU Wei81-8618Applied research on data mining technology on the monitoring systems in Pingdingshan No.4 Coal MineDING Zhen, ZHANG Lin87-92,101193D Printing aid realization of the safety testing of tunnel of coal mineHU De-zhi, LUO Jian-guo, GONG Xin-yong, FENG Hai-mei, DONG Chang-zhi, LI Xiao-ping93-9520Application of the 3D Seismic Secondary Processing Interpretation Technique in Xinji Mine AreaZHANG Ming, DU Shao-neng, ZHU Qing-wei96-101 