1"Seal-open-seal"type seal sampling device and testCHEN Shaojie, ZHOU Ting, HUANG Yuehui, XU Ameng, WANG Zhizheng1-52Research on the grouting thickness of the bottom plate of the collapse column in the fully mechanized caving working faceYANG Changyi, ZOU Guanghua, SHI Haoyu, XIN Chubing, KONG Dechuang, FAN Qingzheng6-9,153Simulation of competitive adsorption of CO2/O2 in bituminous coals with different water contentsZHOU Shengqi, ZHANG Yazhou, TANG Xiaochen, CHENG Genyin, CAI Chuncheng10-154Research on dynamic evaluation of employee safety quality based on seasonal changes of coal mine risksLIU Wei, LI Bohan, LI Ruijing16-255Analysis of the construction and application of informationization platform for safety supervision of machinery manufacturing enterprisesWEI Tong, LIANG Jiahui, BAI Guang, ZHANG Xi26-316Lightweight helmet wearing detection algorithm based on improved YOLOv5sLI Guan, LI Zhiwei, CHEN Hao, TONG Bo, ZHANG Xianyang32-417Research on short-circuit fault localization method based on DBSCAN and binary decision tree algorithmCHEN Yujuan, GU Tao42-498Research on in-vehicle safety and security system based on face and back detectionZHANG Chao, GU Tao50-589DSP-based lithium battery charging and power supply control system designZHANG Tengzhao, ZHANG Quanzhu, LIU Dongmei, ZHANG Junsong, TANG Lifeng59-6610Design of monitoring system for emergency power supply device of electric locomotiveTANG Lifeng, ZHANG Quanzhu, ZHANG Tengzhao, XU Haichao, YAN Xinchen67-7411A wind power prediction method based on extreme learning machine modelLI Guoquan, LI Lingling75-8212Analysis of research trends in the field of emergency management based on CiteSpace and VOSviewerLI Zequan, ZHAO Jialiang83-9113Assessment of emergency response capability of hazardous chemicals rescue team based on DANP-Fuzzy comprehensive evaluationLAN Zequan, ZHANG Lina, LI Yulin, GUO Xinzhe92-96,10214Study of optical properties of ZnTPPS/PVP complexesWANG Yan, GUO Jinming, SU Yanmei, LI Linting, CHAI Zhihua97-10215Construction of hydrogels based on phenylboronic acid-diol cyclic esters and their antimicrobial propertiesGU Xiaoyu, YAN Honghu, CHAI Zhihua103-106,11816Multi-source asymmetric star-shaped quantum network configuration and its nonlocalityDING Dong, YU Mingxing, JI Haosen, LI Zanjia107-11117Research on seasonal changes,cycles and irregular fluctuation patterns of safety production accidents in ChinaLIU Chenjun, LI Ruijing, LI Bohan112-11818Optimization research of support vector machine in slope stability evaluationPAN Yu119-124 