1Development path of new generation intelligent coal mine under HCPS theory systemJIN Zhixin, WANG Hongwei, FU XiangSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine1-122Hydraulic support digital twin joint modeling methodWANG Hongwei, WU Yadan, CHEN LongSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine13-193Manual regulation and control decision model of middle hydraulic support cluster automation in the intelligent working faceZHANG Jintao, FU Xiang, WANG Ranfeng, WANG HongweiSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine20-254Dynamic evaluation of support quality of hydraulic support in space-time regionJIA Sifeng, FU Xiang, WANG Ranfeng, WANG Hongwei, WANG PengfeiSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine26-33,815Method for extracting froth velocity of coal slime flotation based on image feature matchingGUO Zhongtian, WANG Ranfeng, FU Xiang, WEI Kai, WANG YulongSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine34-39,546A joint algorithm of multi-target detection and tracking for underground minersZHOU Mengran, LI Xuesong, ZHU Ziwei, HUANG KaiwenSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine40-477Unsafe action recognition in underground coal mine based on cross-attention mechanismRAO Tianrong, PAN Tao, XU HuijunSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine48-548Multi-object detection of iron foreign bodies in scraper conveyor based on improved Mask R-CNNSHI Lingkai, GENG Yide, WANG Hongwei, WANG HongliSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine55-619Video real-time detection of bulk material accumulation on belt conveyorTANG Jun, LI Jingzhao, SHI Qing, LIU Yang, SONG Shixian, REN ChengchengSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine62-68,7510Drill pipe counting method based on improved MobileNetV2ZHANG Dong, JIANG YuanyuanSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine69-7511Intelligent identification and positioning of steel belt anchor hole in coal mine roadway supportZHANG Fujing, WANG Hongwei, WANG Haoran, LI Zhenglong, WANG YuhengSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine76-8112Research on key technologies of 3D laser scanning modeling in fully mechanized working faceRONG Yao, CAO Qiong, AN Xiaoyu, WEN Liang, ZHAO YunfeiSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine82-8713Design of variable frequency control system for local ventilator based on fuzzy theoryJIA Tianyi, XU Lijun, CHEN Zhifeng, TANG JiaSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine88-96,10614Research on dynamic workflow construction method of coal mine gas controlZHANG Shulin, YANG Jian, SHU LongyongSpecial of Research and Application of Key Technologies of New Generation Intelligent Coal Mine97-10615Research on emergency management system of unmanned transportation system in open-pit coal mineXUE Qiwen, DING Zhen, SUN Zhenming, LI Tengfei, YANG JianjianColumn of Coal Mine Unmanned Transportation107-11516Pressure relief law and application of deep-buried high-stress bedding coal by hydraulic flushingZHANG Jianguo, ZHAI ChengAchievements of Scientific Research116-122,14117Coal mine underground wireless transmission analysis methodSHAO Shuicai, GUO Xudong, PENG Ming, ZHANG GaominAnalysis Research123-12818Optimization of coal loading performance of shearer screw drumLI Minghao, NIU Hao, FAN Jiayi, ZHAO Lijuan, QIAO JieAnalysis Research129-13519Research on the application of 5G characteristics in intelligent mineLIU Xin, FU Yuan, LI ChenxinExperience Exchange136-14120Open-circuit fault diagnosis method for switching tube of mine NPC three-level inverterLIANG HongExperience Exchange142-150 