1Current situation and prospect of coal mine geological guarantee technologies to improve safety and efficiencyDONG Shu-ning50th Anniversary of CCRI1-52Fully mechanized longwall mining technology with high cutting in inclined seam under ultra complicated seam conditionsXIE Guang-xiang, HUA Xin-zhu, YANG KeTechnology and Experiences7-103Support technology for ultra thick broken seam roadway in Carboniferous System of Tashan MineXING Yan-wenTechnology and Experiences10-124Vertical gateway layout technology for thick seam slicing mining in Xingtai MineYAN Wei-guoTechnology and Experiences13-155Technology for fully mechanized longwall top coal caving mining face crossing over folded structure in Yangquan Mining AreaZHANG Zhi-hongTechnology and Experiences16-196Roof control technology with π steel beam for mining face in seam with ultra soft roof, floor and coalLI Chong, LI De-zhongTechnology and Experiences19-227Coupling support technology with bolt/steel mesh/anchor for deep mining gateway in Jining No. 2 MineHE Man-chao, YANG Jun, YANG Sheng-bin, ZHAO Fei-fei, WANG Shu-renTechnology and Experiences23-26,308Practices on distributed weighting system base on C/S and B/S modeZHANG Yong, LUO Jian, YU Xin-fangTechnology and Experiences27-309Practices on application of screw coal miner in thin seamXU Zong-linTechnology and Experiences31-3210Lead hardening temperature measuring and control system for steel wire base on fuzzy PIDYANG Hong-tao, WU Tian-fengTechnology and Experiences33-3711Application of cusp catastrophe theory to research of mine water inrush law from roofWU Yong-ping, YANG Yong-gang, XIE Pan-shiTechnology and Experiences37-4012Karst water prevention and control technology for Ordovician limestone with high pressure waterHAN Tang-huiTechnology and Experiences41-4513Coal quality prediction management information system base on C/S and B/S structureTIAN Wen-wuTechnology and Experiences45-4714Gas comprehensive control technology for coal mining face of protected strata in Panyi MineHE Ji-chunTechnology and Experiences48-5015Design on intelligent decision support system for mining and excavation connection in mineZHAO Peng, MAO Shan-jun, HUANG Qun-ying, CHENG LiTechnology and Experiences51-53,5616Hydraulic automatic separation technology of coal and refuse in underground mineDONG Chang-shuang, YAO Ping-xi, LIU Zhi-heTechnology and Experiences54-5617Application of stream medium technology to video meeting system in coal enterpriseJING JianTechnology and Experiences57-5918High production and high efficiency mining technology of high ranking conventional mechanized coal mining face with ultra lengthYAO Jian-pingTechnology and Experiences60-61,8219Design on automatic control system of coal tar distillationZHANG Zhong-ming, WU Xiao-suTest and Research62-65,6820Test and research on coal gasification with Jincheng high water proof coal briquettesZHANG Xiang-lin, XU PingTest and Research66-68 