1Research on the gas deposit law based on delineation gas-geological unitWANG Yu-huai, YU Bo, SUO HangCoal Mine Safety1-42Website design and implementation of water source discrimination system of mine water fillingLI Yong-jun, YAO ke, SUN Hao, LI ChenCoal Mine Safety5-9,193Research on Status and Development Trend about Technology of Dust Control by Injecting Water in Coal SeamXIE Hong, WANG KaiCoal Mine Safety10-134Study on the upper corner gas control of working face in coal seam with low permeabilityXU Jing-de, PENG Xing-li, QI Rui-chen, YANG Xin, HAN Chun-jingCoal Mine Safety14-195Hydrogeochemical Characteristics of Limestone Aquifers near Coal SeamsHAN Yong, LIAN Hui-qingCoal Mine Safety20-246Study on Numerical Simulation of Secondary Dust Deposition PhenomenonPENG Chi, JU Hai-yangCoal Mine Safety25-297Application of Transient Electromagnetic Method in Detection of Tiexin Mined-out AreasSUN HaoCoal Mine Safety30-358Numerical Simulation Study on Different Roadway Support WaysYANG Zheng-kai, YUE Chao-yang, GU He-long, QI Kai-quanCoal Mine Safety36-399Numerical simulation of the roadway layout under the influence of the seepage fieldLI Jian-bo, YIN Shang-xian, WANG Xin-meiCoal Mine Safety40-4410Study on the connection plan for the roadway of intake air and return air and the air shaft in Bao village of Gaohe coal mineLI Gai-ge, WANG Yi-boCoal Mine Safety45-4911Design of Monitor and Control System of Belt Conveyor in Coal Mine Production Based on PLC and Configuration SoftwareZHANG TaoCoal Mine Safety50-5512Design of the control system of the bidirectional DC/DC converter for the storage and regeneration of the electric locomotive used in coal mineZHAO Li-yong, LIU Hong-meiCoal Mine Safety56-6013Slope stability evaluation model based on hierarchy-set pair theoryYANG GangCoal Mine Safety61-6514The Problems on Production Safety Accident Investigation and handling——And the Theory of Production Safety Accident Report and the Investigation and Handling RulesGUO Yu-mei, WANG Gao-fengBasic Theory of Safety Science66-7215Study on Changes of China' s New Safety Production Policy with TimeZHAO Xing, MA Shang-quan, WU Shan-shanBasic Theory of Safety Science73-7716Research on Weight and Appraisal System about Performance of Occupational Health in Enterprise Based on Analytic Hierarchy ProcessLI Tian-tian, XIE Hong, MA JunBasic Theory of Safety Science78-8217Numerical simulation of temperature field in laser cladding for different overlap rateGONG Xin-yong, LUO Jian-guo, GAO Shi-you, XIAN Shi-yu, HU Xing-zhiOthers83-8818The Effect of Labyrinth Seal Structure Size on Sealing PropertiesDING Jun, SUN Hui-hui, WANG Cai-hong, HAN Chun-jingOthers89-9319Design of the photovoltaic battery charger based on solar powerMA Hong-mei, ZHANG Yi-le, CAO Hao-kun, CHEN MinOthers94-9920Research on universal photovoltaic power control module based on dsPICLI Xue-zhe, DENG Yong-hong, ZHANG Quan-zhu, GONG Xin-yongOthers100-104 