1Research on mine electric spark recognition and alarm method based on the sum of adjacent frame pixel grayscale of imagesSUN Jiping, LI Xiaowei, WANG JianyeAcademic Column of Editorial Board Member1-52Research progress and challenges faced by unmanned aerial vehicles in complex underground spacesWANG Baobing, WANG Kai, WANG Dandan, GAO Haiyue, WANG ChunxiOverview6-13,483Wireless communication technology evolution in underground coal minesBAI Xuefeng, SHU XiaojunOverview14-184Research on coal flow measurement based on binocular structured light visionZHANG Junsheng, WANG Honglei, LI JiachengAnalysis and Research19-265Coal flow detection system for belt conveyor based on dual lidarYU Haili, SUN Lichao, ZUO Sheng, CHEN Dawei, ZENG Xiangyu, DU YuanjiangAnalysis and Research27-34,596Coal flow volume measurement based on linear model partitioningCHEN Xiangyuan, XUE XushengAnalysis and Research35-40,1067Research on fault detection of belt conveyor drum based on improved YOLOv5sMIAO Changyun, SUN DandanAnalysis and Research41-488Fault diagnosis method for mine hoisting motor based on VMD and CNN-BiLSTMLI Jingzhao, HE Na, ZHANG Jinwei, WANG Qing, LI HuashunAnalysis and Research49-599Global dynamic collaborative management and control of diversified business in coal mines driven by digital twinsXING ZhenAnalysis and Research60-66,8210Adaptive control of temporary support force based on PSO-BP neural networkTIAN Jie, LI Yang, ZHANG Lei, LIU ZhenAnalysis and Research67-7411Research on positioning method of mine track locomotives based on not line of sight error suppressionLI ZongweiAnalysis and Research75-8212CatBoost mine pressure appearance prediction based on Bayesian algorithm optimizationCHAI Jing, ZHANG Ruixin, OUYANG Yibo, ZHANG Dingding, WANG Runpei, TIAN Zhicheng, LIU Hongrui, HAN ZhichengAnalysis and Research83-9113Ensemble learning mine pressure prediction method based on variable time series shift Transformer-LSTMLI ZexiAnalysis and Research92-9814Study on the features of coal rock failure potential signal based on multiscale multifractal analysis methodWANG Heng, LI Zhonghui, ZHANG Xin, LEI YueyuAnalysis and Research99-10615Experimental platform for coal gangue sorting robot based on image detectionLI Sanxi, LI Ya'nan, WANG Zijie, HOU Peng, XUE GuanghuiAnalysis and Research107-11316Excitation device for mining steel wire rope based on magnetic flux leakage detectionLI Jianhui, SUN Xianbin, LIU Lunming, CHEN Rongxin, ZHAN WeixiaAnalysis and Research114-11917Short circuit transient power analysis of hybrid intrinsically safe circuitNIE Honglin, XU Chunyu, SONG Jiancheng, TIAN Muqin, SONG Danyang, YANG Yongkai, ZHANG XiaohaiAnalysis and Research120-12518Transient interference analysis and suppression in the secondary circuit of electric control system of kilometer drilling rigGUAN Zhengqi, LI Haiying, SONG JianchengAnalysis and Research126-133,14019Intelligent detection method of working personnel wearing safety helmets in underground mineDU Qing, YANG Shijiao, GUO Qinpeng, ZHANG Huanbao, WANG Yuchen, YIN YuAnalysis and Research134-14020A filtering method for underground manipulator communication signalLIU YanjiaAnalysis and Research141-146 