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    Modal Analysis on 600 Wh Energy Storage Flywheel Rotor System

    Ren, Zheng-yi / Liu, Jing-Na / Han, Yong-Jie et al. | Tema Archive | 2013

    Green channel vehicle inspection data recording device

    Free access
    LI JIAN / HUANG YUN / ZHENG JINGJING et al. | European Patent Office | 2022

    ETC parking online transaction system compatible with license identification equipment

    Free access
    LI JIAN / WANG GANG / LIU XU et al. | European Patent Office | 2023

    ETC parking lot online transaction system

    Free access
    LIU XU / WANG GANG / LI JIAN et al. | European Patent Office | 2023

    Device for assisting people with visual impairment in taking bus

    Free access
    SUN XIAODAN / ZHAO YUXIN / WANG DONG et al. | European Patent Office | 2024