1Numerical Simulation of Flow Field and Gas Transportation in Goaf of Fully Mechanized Sub-Level Caving Face with J-Shape Ventilation SystemWANG Kai, WU Wei-yang277-2822Water Source Determination of Mine Inflow Based on Non-Linear MethodYANG Yong-guo, HUANG Fu-chen283-2863In-Situ Measurement on the Stress of Reinforcing Steel Bar of Outer Freezing Shaft Wall in Deep AlluviumWANG Yan-sen, ZHANG Kai-shun, LI Bing-sheng, YANG Zhi-jiang, LI Hai-peng287-2914Effects of Sodium Carbonate on the Dispersion of Fine Alumin-Silicate MineralsWANG Yu-hua, CHEN Xing-hua, HU Ye-min292-2975Study of Control Process Deformation Behavior and of Soft Rock Drift Under Rich Water ConditionXU Xing-liang, ZHANG Nong298-3026Catalytic Activity of Circulating Materials from CFB Boilers for the Thermal Decomposition of N2OHOU Xiang-song, ZHANG Hai, YUE Guang-xi303-3077Adsorption Characteristics of Coal Reservoirs in North China and Its Influencing FactorsYAO Yan-bin, LIU Da-meng308-3148Environmental Effect and Risk Forecast of Surface Mining on GroundwaterLIANG Bing, BAI Guo-liang, WANG Yan, JIANG Li-guo315-3199Effect of Intrusion of the Shangcheng Granite Body on Structural Framework of the Yangshan Coal-Bearing Series, the Beihuaiyang Area, ChinaCAO Dai-yong, ZHAN Wen-feng, LI Xiao-ming320-32410Analysis of Longitudinal Vibration of Wire Rope in Loading of SkipZHU Zhen-cai, CAO Guo-hua, PENG Wei-hong, PENG Yu-xing325-32911Gallium Accumulation and Geological Controls in Coal Seam and Its Floor from Liangshan Formation,Kaili, Eastern Guizhou, ChinaYI Tong-sheng, QIN Yong, WU Yan-yan, LI Zhuang-fu330-33412Research on Dynamic Response and Failure Law of Composite Protective StructureLIU Dian-shu, FENG Ming-de, WANG Dai-hua335-33813Bio-solubilization of Fushun LigniteSHI Kai-yi, TAO Xiu-xiang, YIN Su-dong, YIN Wen-xuan339-34214ID-Based Ring Signature Scheme for Collaborative Design SystemWANG Xiao-feng, ZHANG Jing, WANG Shang-ping, ZHANG Ya-ling, ZHANG Xiang343-346,37015Research on Domestic Wastewater Treatment in an Innovative MBR ProcessZHANG Chuan-yi, ZHANG Yan-qiu, YUAN Li-mei, GAO Yan-lin, WANG Qiang, XI Dan-li347-35016Experimental Study of Fire Behaviors of Combustible Materials and Fire Simulation in Primary Processing Workshop of CigaretteZHU Guo-qing, JI Jing-wei, CHENG Yuan-ping, GU Zheng-hong, ZHANG Hong-kun351-35517A Method Deriving Unit Hydrographs Based on Area-Time RelationKONG Fan-zhe, LI Yan, Zhu Chao-xia356-35918Model Tests on the Anti-Explosion Effect of Grouted Surrounding Rock in Underground SpaceZHU Yang, SUI Wang-hua, ZEN Xian-ming, JI Fang360-36419Study of the Motivational Mechanism of Enterprise's Technological InnovationWANG Bang-jun, ZHOU Min, JI Feng365-37020Quantitative Analysis and Evaluation on Reliability of Mine Ventilation NetworkWANG Hong-de, LIU Zhen-tang371-375 