1Experiment Study on Deformation Rule of Coal in the Process of Cyclic Adsorption and DesorptionWANG Chen, FENG Zengchao, WANG Zhimin, ZHOU DongTest·Research1-42Study on Coal Bed Methane Reservoir Characteristics and Accumulation Model in the Middle of Qigu Fault-fold BeltDU Shifei, WU Tianqi, TIAN Jijun, LI Le, LU Xingyu, GAO LifuTest·Research5-83Research on Time Varying Laws of Extraction Radius for Bedding Directional 1 000 m Long DrillingDONG Hongjuan, ZHANG Jinshan, LI Wenzhe, WANG YanTest·Research9-124Quantitative Method of Fourier Transform Infrared Spectroscopy for Disaster Gases in CoalmineWANG LiancongTest·Research13-175Experimental Study on Effect of Different Factors on Thermal Conductivity of Coal and RockCHEN Xiaokun, CAI CanfanTest·Research18-20,246Influence Study on Coal Seam Drilling Damage RadiusWANG Binbin, YUE Gaowei, BI WeiTest·Research21-247Numerical Simulation of Gas-liquid Two-phase Flow of Atomizing Field Under Different Spraying PressureYANG Yanlong, WEI Xiuye, ZHAO Leiyu, GENG FushuaiTest·Research25-278Particle Size Effect of Thermal Conductivity and Diffusivity of Loose CoalWANG Wenqiang, YANG Xiaobin, LIU Wei, GUO Dandan, HE ChaoTest·Research28-319Research on Temperature-pressure Coupling Model During Crack Evolution of Coal in Coalfield Fire AreaTest·Research32-3510Experimental Study on Change Laws of Characteristic Gases and Magnetic in the Process of Coal Spontaneous CombustionZHANG Xinhai, MIAO Yuhui, ZHANG Duo, QIN Zheng, DING Feng, WAN XuTest·Research36-3911Numerical Simulation of Rock Burst Risk Induced by Fault Under MiningLI Shidong, LEI RuideTest·Research40-43,4712Study on Influence Factors of Hydraulic Gradient of Fly Ash Paste Conveying Based on Orthogonal TestHE Rongjun, TIAN Zhongxi, YU XiaofengTest·Research44-4713Study on Acoustic Emission Characteristics of Rock Specimen Under Uniaxial CompressionQIAO YonggangTest·Research48-5114Study on Failure Mechanism of Abscission Layer Failure of Extra-thick Compound RoofTest·Research52-5515Simulation of Coal Seam Mining on Loess Landslide Disturbance Based on "V" Glyph RuleSUN Xueyang, WU Jingfang, LI Pengqiang, YANG Xu, LI Cong, HE TuopingTest·Research56-5916Experimental Study on Tailing Paste Filling Material Based on Regression AnalysisLIU Yin, ZHOU Yuming, LU Yao, GUO HongzhouTest·Research60-6317Broken Rule of Single Cracked Rock Under Unloading ConditionLI Zhaoxin, JIANG WeiTest·Research64-6618Application of Hybrid Efficient Drilling Technology in Nearly Horizontal Long BoreholePENG Xu, YANG Zhong, LIU WeiweiTechnology·Innovation67-70,7519Gas Drainage Improving Permeability Technology by Hydraulic Reaming of Through Bed Hole in Xuehu MineTechnology·Innovation71-7520Application of Rapid Excavation Technology in Rock Cross-cut Coal Uncovering in Gently Inclined and Thick Coal SeamZHANG MaoyuTechnology·Innovation76-78 