1Research on the safety threshold of radio wave explosion-proofSUN Jiping, PENG Ming, PAN Tao, ZHANG GaominAcademic Column of Editorial Board Member1-52Study on the technical specification of communication interface and protocol for intelligent mineDING Zhen, SUN Jiping, ZHANG Fan, WANG Peng, HU Eryi, DENG Wenge, GAO Jing, ZHENG Yaotao, WANG Bo, GAO Qiuqiu, LI Ximin, QIAN Haijun, LIU Jianhua, QIAO Shaoli, BAO Zhen, YANG Yongsheng, YANG Zhenyu, LI Yuxue, LI Yuhan, SHAO GuangyaoAcademic Column of Editorial Board Member6-133Research on precise positioning technology and optimization method of mine moving targetsZHENG Xuezhao, YAN Ruijin, CAI Guobin, WANG Baoyuan, HE QinjianAcademic Column of Editorial Board Member14-224Research on intelligent mine disaster digital twin based on industrial InternetXING Zhen, HAN An, CHEN Xiaojing, CHEN Haijian, SHEN YiSpecial of Digital Twin and Virtual Reality Technology of Intelligent Mine23-30,555Straightness solution of the fully mechanized working face based on VR and DT technologyYAN Zewen, XIE Jiacheng, LI Suhua, SHEN Weidong, WANG Yirong, WANG XuewenSpecial of Digital Twin and Virtual Reality Technology of Intelligent Mine31-376Research on the application of digital twin in coal mine power gridZHAO Jianwen, MENG XuhuiSpecial of Digital Twin and Virtual Reality Technology of Intelligent Mine38-467A three machine digital twin and collaborative modeling method for fully mechanized working faceLIU Qing, ZHANG Long, LI Tianyue, DU PengfeiSpecial of Digital Twin and Virtual Reality Technology of Intelligent Mine47-558Digital twin system architecture and key technology of following process for fully mechanized miningCUI Yao, LI Tianyue, YE Zhuang, LIU JunweiSpecial of Digital Twin and Virtual Reality Technology of Intelligent Mine56-62,769Research on cross interference and evaluation method of coal mine gas detection equipmentCHEN YongranAnalysis Research63-69,9310Target detection of the fully mechanized working face based on improved YOLOv4WANG Keping, LIAN Kaihai, YANG Yi, FEI ShuminExperimental Research70-7611A pedestrian target detection method for underground coal mine based on image fusion and improved CornerNet-SqueezeZOU Sheng, ZHOU Libing, JI Liang, YU ZhengqianExperimental Research77-8412Mine UWB radio frequency front-end electromagnetic co-simulation method based on ADS and HFSSREN WenqingExperimental Research85-9313Low-carbon transportation scheduling of open-pit mine based on GWO-NSGA-Ⅱ hybrid algorithmWEN Jiayan, WEN Haichao, CHENG Yang, LUO Shaomeng, HE WeichaoExperimental Research94-10114Study on spontaneous combustion law of residual coal in goaf under the condition of gas extraction in the low-level roadwayFAN JiafengExperimental Research102-108,12415Study on spontaneous combustion characteristics of coking coal with different pre-oxidation degrees after CO2 coolingWANG Qingguo, ZHOU Liang, QIN Ruxiang, LIU Zhen, YANG YanyanExperimental Research109-114,15616Analysis of heat dissipation performance of mine inverter based on the integrated modelWANG Yue, SHI Han, RONG Xiang, JIANG DezhiExperimental Research115-12417Bearing fault diagnosis based on harmonic matching compensation and keyless phase order trackingWU Jie, LU Zhenlian, MA Hongru, ZHU Yanfang, WU Yaochun, XUE Xiaofeng, JIANG KuoshengExperimental Research125-133,14018Study on permeability characteristics of caved coal and rock in goafYANG Xiaochen, JIA Nan, ZHANG Xiaoming, SASAKI KyuroExperimental Research134-14019Research on key technology of intelligent fully mechanized caving face construction in Baode Coal MineWU Xicang, ZHANG Xueliang, RUAN Jinlin, WANG ZhiqiangExperience Exchange141-14820Fault detection method for belt conveyor idlerWU GuopingExperience Exchange149-156 