1Research on Expansion Energy in Initial Released Gas Prediction Model Based on Quantification TheorySHI Qing-li, YANG Sheng-qiang, JIANG Cheng-lin, HE LeiTest·Research1-42Experiments Study on the Influence of Volume Stresses and Pore Pressures on Coal Samples' PermeabilityLI Bo-bo, YUAN Mei, MA Ke-wei, HE Ming-hua, WANG ZhenTest·Research5-83Study of the Inhibition Effect of External Moisture in Coal Oxidation in Low TemperatureGUO Xiao-yun, WANG De-ming, LI Jin-shuaiTest·Research9-11,154Experimental Study and Application on Tendency of Coal Spontaneous CombustionSUN Kai, ZHANG Jian-ye, BIAN Chao-dongTest·Research12-155Field Testing and Study on Hydraulic Fracturing to Weaken Hard RoofSUN Xing-lin, DOU Lin-ming, ZHANG Shi-bin, HE Hu, GAO Jing-longTest·Research16-196Experimental Study on Mechanical Deformation Properties of Mine Paste Filling MaterialHE Li-hui, JIA Shang-kun, CHEN Chao-qun, KUANG Zhong-wen, LI MengTest·Research20-237Research of Coal Dust Concentration Sensor and Detection SystemHUANG Cheng-yu, ZHAO Li-yong, ZHANG Quan-zhu, LI Xue-zheTest·Research24-278Investigative about the Releasing Range of Gas Pressure for Underlying Adjacent Seams in Zhangxiaolou MineTechnology·Innovation28-309Accelerating Gas Drainage Technique by Expanding Bore in the Shaft Uncovering CoalTechnology·Innovation31-3410Technique for Improving Gas Drainage Efficiency of Penetration Drainage Boreholes in Floor Rock DriftMA Yong-qingTechnology·Innovation34-3611Extinguishing Fire Technique by Injecting Nitrogen and Balancing Air Pressure of Changcun MineWANG PingTechnology·Innovation37-3912Underground Tunnel Water-inrush Simulation Based on lattice Boltzmann MethodWANG Wei, HUANG Guang-qiuTechnology·Innovation40-4413Study on Technology of Deep-hole Hydraulic Pressure Controlling BlastTechnology·Innovation44-4714An Improved Source-scanning Algorithm for Micro-seismic Source LocationZHANG Rui-hong, LIN Da-chao, QIAO LanTechnology·Innovation48-5115Research on Control Technology of Floor Heave under Soft Surrounding RockTechnology·Innovation52-5416Deep Coal Roadway Strength Supported by Bolt of 1311(1) Face in Dingji MineZHAO Yi-ming, ZHANG Nong, ZHENG Xi-guiTechnology·Innovation55-5717Design of WSN, Routing Algorithm for Monitoring System of Coal Preparation PlantDesign·Development57-5918Research of Divided-frequency Speed Regulation Based on Matrix in Energy-saving EquipmentDesign·Development60-6219The Data Acquisition and Processing of Personnel Tracking Management System of Underground MineDesign·Development63-6720Circuit Design of Switching Off Controller Used for MinesZHAO Jian-guiDesign·Development67-69 