1Optimization of Blasting Parameter Design for Mine Hard Rock Roadway HeadingPING Qi, LIU Yan-jun, ZHOU Lu-jun, WANG Feng, WANG Zhi-yongConstruction Technology39-412Study on Similar Material Simulation of Fully Mechanized Top Coal Caving Mining in Ultra Thick Seam with Watery Overburden StrataWU Yong-ping, HU Bao-feng, XIE Pan-shi, GAO Xi-cai, ZHANG Yan-liDiscussion on Research61-63,673Study on Support Technology of Large Cross Section Open-Off Cut in Seam under Ultra Close Distance SeamWANG Hua-jun, CHEN Shan-le, WEN Liang-xia, LV Shao-wenDiscussion on Research68-714Study on Hierarchical Evaluation Index System of World First Class Surface MineZHAO Hong-ze, ZHANG Rui-xin, CAO Bo, YAN NingDiscussion on Research72-745Study on Gas Content Prediction of Deep Seam Based on Equilibrium Water Adsorption ExperimentZHENG Kai-ge, CHEN Geng, HU Bao-linDiscussion on Research75-776Study on Logging Seismic Constraint Inversion to Predict Strata Pressure in Mining BlockZHANG Kai, ZOU Guan-gui, ZHU ShaDiscussion on Research81-83,877Study on Material Crushing Behavior of Jaw Crusher Based on PFC3DYUE Yao-cheng, QIN Zhi-yu, YI-Yi, RONG Xing-fuDiscussion on Research94-96,998Study on Simulation of Phase Transition Cooling Technology with Ultra Fine Fog Particle in High Temperature MineZHANG Lian-kun, WANG Jue, XIE Yao-she, CUI Yu-panDiscussion on Research97-999Experiment Study on Dewatering Effect of Floatation Clean Coal Upgraded with Improvement of Coal Particle Size CompositionYANG Xiao, SUN Yuan, XI Peng, ZHANG Zhen-yang, YU Xiao-bo, JIANG Wu-xueDiscussion on Research106-10810Study on Desulfurization Performances of Coal Base Activated CarbonZHANG Lei, CHEN Lei-lei, GONG Jian-yuan, Dang Ya-hui, SUN PengDiscussion on Research109-11111Pressure Prediction of Slime Transportation Pipeline Based on Parameter Optimized Support Vector MachineYANG Xue-cun, HOU Yuan-bin, HONG Wei-lin, WANG Xin-zhaoDiscussion on Research112-11512Study on Structure Features and Evolution of Jining Wanglou MinefieldYU Qing-song, JIANG Bo, SHI San-shan, LI Hai-qing, GONG Yao-chongDiscussion on Research116-11913Discussion on Video Identification Technology Applied to Measuring and Control System of Hydraulic Powered Support Test PlatformWANG Yang-yangEquipment Technology122-12414Design on Status Monitoring and Measuring and Fault Diagnosis System of Mine Main Water Drainage DeviceZHOU Juan, XU Chun-yu, SONG Jian-chengInformation Engineering128-13015Evaluation on Informatization Performances of Coal Enterprises Based on BSC and AHPTAN Zhang-lu, ZHANG Chang-lu, LIU Hao, FANG Yi-fangProject Management136-138,141 