1Study on adsorption characteristics and fractal properties of nano-scale pores at low temperature coalZHANG Yugui, JIAO Yinqiu, LEI Dongji, LI Yukui, MA Zhihao141-1482Study on difference of drainage radius comparsion crossing hole with bedding holeYANG Hongmin, LIU Guanpeng, LIU Jun149-1553Research process and prospect of determination methods of gas extraction effective radius of hole drilled along seamHAN Ying, ZHU Linjian, ZHANG Feiyan156-1614Aperture determination and application effect analysis of bedding long boreholes along coal seam for gas pre-drainageHUANG Zhanfeng, WAN Xiangyun, KONG Liuan162-1665Research on identification methods of gas flow in coal seamSONG Jinxing167-1726Experimental study on the couplants effect on test of coal samples ultrasonicWANG Yungang, JU Guanggang, CHEN Bingbing, LI Meng173-1777Research on the influence of natural fractures on hydraulic fractures propagation in coal and rock massMA Geng, ZHANG Fan, LIU Xiao, FENG Dan178-182,2018Control analysis and instability evolution of surrounding rock in multiple dynamic tunnelXIN Yajun, JI Hongying, CHENG Shijiang, XUE Yongsheng183-1899Discovery and its characteristics of pyrophyllite in the bedded siliceous rocks of the Taiyuan formation in Jiaozuo areaCAO Gaoshe, DU Zhong, XU Guangming, ZHANG Song190-19310Characteristics of the intertidal food web based on trace fossils in Mantou formation of CambrianLI Da, QI Yongan, DAI Mingyue, WANG Min194-20111Mine water inrush prediction based on phase space reconstruction and support vector machinesHUANG Cunhan, CHEN Kuikui, LI Zhenhua, LI Xiaojun202-205,21112Cause analysis of central transport roadway coal seam water gushing and H2S escape in Ningtiaota coal mineREN Haixiang, HE Weizhong, ZHANG Tinghui206-21113Research on uncertain language group evaluation of map quality based on Vague setHu Shengwu, Fan Yin, YE Xianfeng212-21714Experiment research of similar material simulation measurement based on point-site errorZHANG Hebing, LI Chunyi218-22315Fault diagnosis research of asynchronous motor rotor broken barJING Shuangxi, ZHAO Xingyu, GUO Songtao, WANG Zhiyang224-22916Research on the cutting force and tool wear of zirconia ceramics under ultrasonic vibration assisted diamond fly cuttingYAN Yanyan, WANG Qi, Zhao Bo230-23517Disturbance input estimation for a class of switched systems based on reduced-order switched observerCHEN Yantao, ZHU Xiaoli, YUE Hengmao236-24118Mine power cables PD signal denoising method based on fusing blind equalization and morphologyMA Xinghe, MA Li, ZHOU Tao, WANG Xudong242-24719A method of parameter optimization based on partition entropy in FCCM algorithmLIU Yongli, FU Lili248-253,27320Design of flight data signal generator module circuitZHAO Yanru, WANG Dongsheng, WANG Geng, LI Changyou254-261 