1Stability analysis of two sides of roadway supported with boltsGOU Panfeng, CHEN Qiyong, WU Tiejun317-3212Analysis of gas emission law by sublevel caving minging atNo.14 zone in Jiulishan coal mineHUANG Qiu, Wu Tiejun, XU Zhougyou, FENG Yongjun322-3253The study and application of roof bolt supporting in coal drift that exists heavily stress and joint systemXU Keming, LI Guofu, JIA Mingkui, XU Jimin326-3294Analysis of caving coal movement drawing law at the singlebody breakerprop sublevel caving coal face in Jiulishan coal mine of JiaozuoWANG Liangjin, LI Weiping, XU Keming, REN Chuanwei, FAN Huailei330-3335The speedy construction performances in freezing section of vertical shaftZHANG Xin, TIAN Keyun, ZHOU Wenze, WEI Shenyu, CHENG Shanjin334-3376The application of grey system theory in predicting the maximum water emission in Hanwang coal mineLI Changqing, HUANG Yusheng, BI Jianghong338-3407A study of siderite from kaolinite clayrock in Xinzhuang mining areaZHANG Shande, ZHANG Yang341-3448Analysis and application of industrial waste residue in Jiaozuo districtFAN Wenxi, ZHANG Zhenhu, WANG Yingfu, HAN Jianjun345-3489Study of the detection of the grouting quality by ultrasonic wavesHUANG Xiaoguang349-35310Analysis on influence factors of pile heave pilling periodLIU Xiliang, LUO Jing, BIAN Yongguang354-35711A practical real estate appraisal systemQIAO Chaofei, LIU Wenkai, ZHANG Guangsheng358-36112Security analysis of the knapsackbased public key cryptosystemLI Zichen, YANG Lishen, ZHANG Juanmei, CHEN Xuelin362-36413The practice of intranet in guiding information net against floodXU Bo, NIE Chunsheng365-36814Development trends of PID parameter tuningSONG Yunzhong369-37115Research of substation DC system microprocessor control monitorWANG Xin, DU Qing_nan, CHEN Li_xiang, CUI Jing_yue372-37516Golden selfsimilarity and fractal proportionLI Jinbao, ZENG Yufeng, DENG Jien, WANG Yukun376-37917The application of the multiclass fuzzy comprehensive judgement to the comparative choices of the highway design schemesYAN Yuxia380-38418Monitoring and supervising research on broadcast TV tower of JiaozuoCHEN Junjie, YUAN Zhanliang, LIU Wenkai, WANG Liuzhao, ZHANG Haizhou385-38819Analysis on the ferromagnetic resonance overvoltage and its prevention and control methodZHAO Tongsheng, MA Xinyu389-39220Limit problem of power exponent functionFENG Jiacai393-394 