1Experimental Study on Gas Desorption Characteristics Under the Condition of InfraredLI Feng, LIU Xiao, LIANG ShuangTest·Research1-32Numerical Simulation for Gas-water Mist Heat Transfer in Mine Return Air Diffusion TowerMENG Jie, WANG Jianxue, WANG JinyuTest·Research4-73Study on Permeability Change Law of Coalbed Methane in Coal Reservoir with Different Coal Structure in Drainage ProcessDU XinfengTest·Research8-114Rationality Study of Protection Scope of Underside Protective Layer Mining in East Region of Panyi MineWU Qing, SHI Biming, MU Chaomin, TANG Jing, JIA ZhanweiTest·Research12-155Research Status About Determining Permeability Coefficient in Coal SeamWANG Zhaofeng, DONG QingxiangTest·Research16-196Development of Mine-used Foam Dust Suppression Device and Foam ReagentGAO Panjun, DAI Guanglong, PENG Wei, ZHANG Xiaomei, TAN XueTest·Research20-22,257Influence of Temperature Variation on Coal Firmness CoefficientSONG Shuanglin, ZHANG ZuohuaTest·Research23-258Differences of Pore Characteristics Between Deformed Coal and Undeformed Coal in Shanyang Mine FieldYAN Kang, WEI Lele, MA DongminTest·Research26-289Correlation Study on Temperature and Wettability of Na2SO4-SDS Mixed SolutionZHANG Yingxin, WANG Fei, WANG PengfeiTest·Research29-3110Similar Simulation Experiment for Mining Face Floor Damage Depth of Mining Above Confined WaterZHAO Jizhong, FENG Limin, CHEN Jianting, HAO Zhen, SHI MingfangTest·Research32-3511Acoustic Emission Characteristics of Rock During Whole Stress-strain and Unloading Process Under Different Confining PressureGU Yilei, WU Wenjie, LI Qingmiao, TANG ZhengchuanTest·Research36-3912Simulation Experiment on Stability of Goaf Overlying StrataZHANG Weizheng, HAO Zhe, WANG Laigui, LI XilinTest·Research40-4213Numerical Simulation Research on Impact Failure Characteristics for Unloading Coal Rock MassLI XiaoluTest·Research43-4514PFC2D Numerical Simulation for Deformation and Fracture of Rock Mass Side-dischargingYU Min, LI JizuTest·Research46-4915Study on Rational Support Strength of Roof at Face-end Area of Fully Mechanized Caving FaceZANG Chuanwei, XIA Junfeng, LI Huacheng, ZHU JiguangTest·Research50-5316Comprehensive Gas Control Technology at Fully Mechanized Island Mining FaceZHANG Zhantao, WANG YinhuiTechnology·Innovation54-5617Dust Control Technology at Fully Mechanized Working Face Based on Wet Collector and Wall-attached Fan DrumLI ShunfengTechnology·Innovation57-5918Fire Prevention and Control Technology of Fully Mechanized Caving Face of Close Distance and Inflammable Thick Coal Seam GroupWANG Gang, CHEN Yang, LYU Yinghua, GUO Haixiang, LU WenyongTechnology·Innovation60-6219Comprehensive Fire Preventing and Extinguishing Technology for Gob at Fully Mechanized Mining Face in Ciyaogou Coal MineZHAO HongyueTechnology·Innovation63-6520Fast Water-blocking Wall Construction Technology in Collapse Coal RoadwayCHAI Huichan, LI Wenping, ZHENG Shitian, WANG Wei, GUO Qiming, JIN XingTechnology·Innovation66-68 