1Experimental Research on Porosity of Ordovician Fengfeng Formation of Lu'an Coalfield, ChinaWANG Chang-shen, BAI Hai-bo, MIAO Xie-xing455-4622Analytical Calculation of Temperature Field Around a Single Freezing PipeJIANG Bin-song, WANG Jin-ge, ZHOU Guo-qing463-4663Experimental Study of the Sequence of Flow Reversals in Accessional Airways Parallel to a FireZHOU Yan, SONG Shuang-lin, GUO Jiang-wei, XU Yang, LIN Bai-quan467-470,4934Study of the Stress Paths Tests for the Deep Reconstituted Soils at High PressureZHAO Xiao-dong, ZHOU Guo-qing, WANG Bo471-4755Nonlinear Characteristic Analysis of Screening Rod of Elastic-Rod Vibrating ScreenLIU Chu-sheng, LU Jin-xin476-4806Partitioning of Elements During Coal Combustion and Leaching ExperimentsWANG Wen-feng, QIN Yong, SONG Dang-yu, WANG Jun-yi481-4877Simulation for Correlation Effect of Orientation Parameters on Satellite Image PositioningCHENG Chun-quan, DENG Ka-zhong, ZHANG Ji-xian, ZHANG Li488-4938Mechanical Model of Metro Shield Tunnel Segment Ring Considering Joint EffectLIU Bo, GAO Xia, TAO Long-guang494-5029Adaptive Ant Colony Algorithm Based on Expandability and Magic Cube TransformationMA Xiao-ping, JIN Zhu503-50810Fluidization Characteristics of Medium Solids with a Wide Size RangeTANG Li-gang, ZHAO Yue-min, LUO Zhen-fu, CHEN Zeng-qiang, LIANG Chun-cheng, XING Hong-bo509-51411Research on the Extension Assessment Model of Underground Coalmine Safety BehaviorZHOU Yu, QIAN Xu, JIANG Tao, AN Na515-52212Experiment Study of Coal Permeability Under Different Temperature and StressLI Zhi-qiang, XIAN Xue-fu, LONG Qing-ming523-52713Bayes Discriminant Analysis Model and Its Application to the Prediction and Classification of RockburstFU Yu-hua, DONG Long-jun528-53314Synthesis and Application of Flocculants for Treatment of Ultra-fine Coal SlurryZHU Shu-quan, JIANG Lin-hua, ZOU Li-zhuang534-53915Experimental Research on the Method of Ascertaining the Induction Period of Gas Explosion in MineLI Xiao-bin, LI Shu-gang, LIN Hai-fei, CHENG Lian-hua540-54316Selection of Reasonable Section Heights During Top-coal Caving to Steep SeamsSHAO Xiao-ping, ZHANG Hong-xiang, SHI Ping-wu544-54817Laser 3D Detection and Stability Analysis of Underground CavityLIU Xi-ling, LI Xi-bing, LIU Ke-wei, WANG Wei-hua, ZHOU Zi-long549-55318Experimental Study of Treatment of Oily Waste Water by a Cyclone-Static Micro-Bubble Flotation ColumnMA Li-qiang, LIU Jiong-tian, YUE Guan-gao, CHEN Qing-ru554-55719Research on Structure of Al Gels with Different Basicity Using Spectroscopy MeansZHAO Feng-hua, LIU Jing, ZHU Min, MIAO Xue-na, CHEN Mei-ting558-56120Split Hopkinson Bar Measurements of Steel Fiber Reinforced Concrete Exposed to High TemperatureYANG Shao-wei, BA Heng-jing562-565 