1Experimental Study on Cohesive Force Property of Flame from Gas Explosion217-2202Quality Evaluation of Spatial Data in GIS Based on Information TheoryGUO Da-zhi, FAN Ai-min221-2243Research on Fractals of Pore and Fracture-Structure of Coal ReservoirsFU Xue-hai, QIN Yong, XUE Xiu-qian, LI Gui-zhong, WANG Weng-feng225-2284Speckle Restraint of Satellite SAR Image Using Wavelet TransformHU Zhao-ling, GUO Da-zhi, SHENG Ye-hua229-2325Coprocessing of Four Chinese Coals with Catalytic Slurry Oil——Conversion and Products Distribution233-23763D GIS Data Structure and Visualization Based on Mine PropertiesDU Pei-jun, GUO Da-zhi, TIAN Yan-feng238-2437Model Test of Thermal Explosion Technology in Underground Coal GasificationYANG Lan-he244-2478Study on Wavelet Denoise and Characteristic Extraction of Echo Signal to Flaw Classification in Ultrasonic TestingLIU Xu, XIA Jin-dong, Wu Miao248-2519Discussion on Loading Problem in Physical and Numerical Simulation of Strata MovementXU Jia-lin, QIAN Ming-gao, MA Weng-ding, ZHAO Hai-yun252-25510Identification Procedures of Structure Vibration Parameters Based on Genetic AlgorithmLI Shou-ju, LIU Ying-xiC, WANG Deng-gang256-26011Simulation on Roof Activities of Gob-Side Entry Retaining in Fully-Mechanized Top-Coal Caving FacesZHANG Dong-sheng, MIAO Xie-xing, MAO Xian-biao261-26412Determination of Dynamic V-A Characteristic Parameters of Inductive Intrinsically Safe CircuitsMENG Qing-hai, MU Long-hua, HE Xue-Qiu265-26713Bubble Performance of Air Dense Medium Fluidized Bed and Its Effects on Coal PreparationXU Shou-kun, GUAN Yu-ping, CHEN Qing-ru268-27114Study on Pyrolysis of Maceral Concentrate from Shenmu CoalSUN Qing-lei, LI Wen, LI Bao-qing272-27615Influence of Mine Roadway Aerodynamics-Aging on Ventilation ResistanceLI Tie-lei, CHEN Kai-yan, CHEN Fa-ming277-28016Kinematics Analysis of Pick on Transverse Cutting Head of RoadheaderGUO Ying-fu, Liu De-shun, PENG You-duo, MAO Zheng-yu, ZHANG Yong-zhong281-28417Thermal Analysis on Combustibility of Coal Water Slurry with Industrial Waste WaterZHANG Ming-xu, MIN Fan-fei285-28918Constant Pressure Filtration Equation of Flotation Clean CoalLIU Huan-sheng290-29319Study on Utilization of Waste as Roadbed MaterialsLIU Chun-Rong, SONG Hong-wei, DONG Bing294-29720Research on Reaction Model of Water Soluble Desulphurizer with SO2RAO Ying-fu, LI Juan-ying, GU Qiang298-300,306 