1Study on spread of flame and noxious gas of gas explosion in confined spacesYANG Shu-zhao, JING Guo-xun257-260,2752Prediction of gas emission quantity based on improvement of power-activation feed-forward neural networkYANG Wen-guang, LIN Lian-hai, YAN Zhe, ZHANG Jun261-2653Law of strata behaviors of fully-mechanized coal face with sublevel caving under hugely-thick conglomerate strataZHAI Xin-xian, BIE Xiao-fei, ZHANG Shuai, REN Yong-kang266-2704Deformation and failure rule of segment coal pillar in inclined coal seamYUAN Rui-fu, MEN Jian-guang, JIAO Zhen-hua271-2755A new type of support for large deformational roadwayGUO Bao-hua, XI Ke-feng, CHEN Yan, MA Qing276-2796Calculation method of true formation thickness by log and seismic dataCAO Zhong-hong, Feng Lei, LIU Guo-yong, SHI Zheng, ZHANG Hong-chen280-2847Discovery and geological significance of the Ounan paleouplift in the northern margin of Qaidam basinLIU Zhong-quan285-2908Design of surface movement observation station based on aerial photographyCHAI Hua-bin, LIU Rui-bing, ZHANG Yu-min291-29493D buildings reconstruction based on vehicle-borne laser-scanning dataLIU Hui-yun, LI Yong-qiang, CHEN Meng, ZHAO Liang, LIU Yan-bing, WANG Qiu-yun, FENG Bao-lin295-29810A novel algorithm of positioning and tracking based on combination of GPS and DTMBTIAN An-hong, FU Cheng-biao, TAO Yan-lin299-30311Node optimization of ultrasonic amplitude transformer based on ANSYS and its vibration performance testZHAO Bo, XU Yong-qiang, ZHENG You-yi, BIAN Ping-yan304-30812Simulation analysis of Six-bar mechanism based on virtual principleWANG Jian-ping, ZHANG Yan-hui, LIU Er-hui309-312,31713Hoist fault diagnosis based on improved particle swarm neural networkLIU Jing-yan313-31714Modal analysis on PCF1420 efficient counterattack hammer crusher rotor systemZHANG De-chen, FAN Yong, DONG Chao-wen, SUN Yan-ping318-32215Influence of cooling-air in residual stress of shovel teeth grinding surfaceWANG Jian-hua, LEI Bing-shan, PU Lin323-326,33816Research on dual modulation curves control of cascaded H-bridge rectifierWANG Cong, WANG Jun, ZHAO Feng327-33217A improved three-dimensional K-Coverage Control method for sensor networkWANG Li, MIAO Feng-juan, TAO Bai-rui, ZHANG Jing-lin, LIU Wen-li333-33818Traffic signs recognition based on visual attention model and SIFTJIA Xiao-yan, XU He-li, GUO Hai-ru339-34319Research on real-time evaluation method for host system security situationLIU Ren-shan, MENG Xiang-hong344-34820220 kV transformer condition assessment strategy based on fuzzy theoryWANG Fu-zhong, WANG Hai-ling349-353 