1Research and development of 5G communication system standards for coal minesSUN JipingAcademic Column of Editorial Board Member1-82Research on fault warning technology for cutting part of cantilever roadheader based on virtual and real fusion dataZHANG Xuhui, BAI Linna, YANG HongqiangAcademic Column of Editorial Board Member9-193Status and prospect of the application of mine DC electrical method technologyYANG Shaowen, ZHANG Pingsong, XU Shi'ang, WU Haibo, QIU Shi, JIAO WenjieOverview20-294Design of end controller for the electrohydraulic control system of intelligent working face hydraulic supportZHANG Xiaohai, TIAN Muqin, ZHANG Minlong, SONG Jiancheng, XU Chunyu, NIE Honglin, YANG YongkaiAnalysis and Research30-365Shape monitoring of scraper conveyor based on inertial measurement unitWEI Dong, LI Zuxu, SI Lei, TAN Chao, WANG Zhongbin, LIANG Bin, XIAO JunpengAnalysis and Research37-52,806Path planning of coal mine rescue robot based on improved A*algorithmJIANG Yuanyuan, FENG XueyanAnalysis and Research53-597Efficient task assignment algorithm for coal mine underground group robotsWU WenzhenAnalysis and Research60-698A localization and navigation method for underground mine autonomous driving based on local geometric topology mapLIU Shijie, ZOU Yuan, ZHANG XudongAnalysis and Research70-809Positioning method for underground unmanned aerial vehicles in coal mines based on global point cloud mapGAO Haiyue, WANG Kai, WANG Baobing, WANG DandanAnalysis and Research81-87,13310Research on high sampling frequency mine electric spark image recognition and anti-interference methodsLI Xiaowei, WANG JianyeAnalysis and Research88-93,14711Mine image enhancement method based on multi-scale local histogram equalizationTU Yihan, WANG PuqingAnalysis and Research94-9912Lightweight multi-scale cross channel attention coal flow detection networkZHU Fuwen, HOU Zhihui, LI MingzhenAnalysis and Research100-10513A fault diagnosis method for roller based on small sample sound signalsHAO Hongtao, QIU Yuanyuan, DING WenjieAnalysis and Research106-11314Research on the application of time shifting aeromagnetic method in detecting coal mine burning areasYU Yongning, LI Xiongwei, SHI Lei, LIU Kaiyuan, GUO Jianlei, MA GuoqingAnalysis and Research114-12015Method for detecting the status of retaining walls in intelligent minesXU Lianhang, LI Xi, GUO Xusen, LI JingAnalysis and Research121-12616Intelligent measurement and control system of mine water level based on Raspberry PiCHEN Haijian, WANG Weiyi, FAN Jinge, PAN Yidong, YAN Ziji, WU BaoleiAnalysis and Research127-13317Optimization and transformation of ventilation system in Jining No.2 Coal MineZHANG Yiran, TAO Weiguo, GUO Chuanqing, CHEN Xiujie, MIAO DejunAnalysis and Research134-141,15518Study on gas desorption dynamic features of mixed coal samples with different particle sizesMA Xingying, GONG Xuanping, CHENG Xiaoyu, CHENG Cheng, LI DeboAnalysis and Research142-14719Estimation of coal vitrinite reflectance based on random forest and dendritic networkYUAN Yilin, ZHAO Ronghuan, HE Kun, HUANG Xiu, WANG Hongdong, ZOU LiangAnalysis and Research148-155 