1Study on natural frequency characteristics of coal based on the influence of bedding and coal rankWEI Jianping, ZHANG Junzhao, WEN Zhihui, REN Yongjie, ZHANG Libo1-82Effect of staged fracturing perforation spacing of horizontal well on fracture estension of coal reservoirWANG Zhirong, HU Kai, CHEN Lingxia, SONG Pei9-143Study on damage law of rheological disturbance in the neighborhood of rock strength limitWANG Bo, HU Shiyu, HUANG Zikang, WANG Ling, YANG Peiji, LU Changliang, WANG Jun, HUANG Wanpeng15-254Study on the influence of vertical shaft blasting with frozen clay on the vibration of shaft wallYU Jianxin, LI Zhenzhen, GUO Min, ZHANG Yingcai26-345Adsorption model and mechanism of coal under high-strength electrical excitationLEI Dongji, ZHENG Yuanyuan, MA Tao, WANG Yajuan35-456Study on application of PCA-BP neural network in discrimination of karst water inrush source in mineHAN Zhong, WANG Xiaoli, SHI Longqing46-537Study on key elements and chemical dissolution index of limestone karstification of Maokou Formation in western GuizhouSHUANG Tongzhao, WANG Zhongmei, JIANG Wenjie, CHU Xuewei54-618Geological characteristics and fracability analysis of marine-continental transitional facies coal measures shale in Southern North China Basin:A case of Taiyuan Formation,Zhongmu BlockYUAN Qingsong, ZHU Desheng, WANG Chao, LI Zhongming, ZHANG Dong, LI Cong62-709Construction of skew prediction model for surface subsidence velocity in horizontal coal seam miningCHEN Junjie, LIU Shengwei, YAN Weitao71-75,8610Optimization design of La-Biochar composites by response surface methodology and its adsorption properties to As(Ⅲ)JIANG Peiwen, LI Hansheng, DENG Tiantian, LIU Qianyuan, MA Chao76-8611Analysis on the dynamic changes of land use structure and industrial structure in Nanyang City under the background of the construction of the Middle Route of the South-to-North Water Transfer ProjectFU Jingbao, LI Siyao, LI Xiaogen, DUAN Xiaofang, DENG Mengying, LI Yuying87-9412Study on the characteristics of ultrasonic guided wave in a piezoelectric semiconductor plateZHANG Xiaoming, CHEN Tao, ZHOU Hongmei, YU Jiangong95-10113Incipient weak fault diagnosis for rolling bearing based on ARLMD and IMOMEDATANG Guiji, DING Ao, WANG Xiaolong, ZHANG Ye, JIANG Chao, LI Haiming102-11514Study on bearing fault diagnosis method based on DBI-wavelet packet decomposition and improved BP neural networkZHANG Yuyan, ZHANG Jinlong, WEN Xiaoyu, LI Hao, SUN Chunya, WANG Haoqi, QIAO Dongping116-12315Fuzzy adaptive auxiliary frequency modulation strategy for DFIG considering wind power uncertaintyZHAO Xilin, YAO Yepei, FU Bo124-13216Study on triangular modular multilevel DC/DC converterZHENG Zheng, JING Kaifeng133-141,17417An integrated grid-interface converter and improved coordinated method for DC gridWANG Yunfeng, LI Zhigang, LIU Yonghui, ZHANG Guopeng142-15118V-SLAM algorithm based on improved ORB and PROSAC feature point matchingWANG Hongxing, XU Wanlin, ZHANG Boyang152-15919Modulation classification based on multi-channel residual network and attention mechanismZOU Borong, LI Shanshan, YE Peiran, HOU Qinghua, WU Huibin160-16720Study on damage identification of functionally graded Timoshenko beam based on the fusion of modal strain and frequencyHUANG Lixin, YANG Shaozhao, LIANG Fuan, HUANG Jun168-174 