A simple discrete-time tracking differentiator and its application to speed and position detection system for a maglev train by Zhang, Hehong, Xie, Yunde, Xiao, Gaoxi, Zhai, Chao, Long, Zhiqiang

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Removal of low concentration ammonia nitrogen enhanced by hydraulic cavitation combined with ozonation by Zheng Yan, Wang Jian-gang, Liu Xiaoyan, Long Zhiqiang, Sun Mochuan

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Discrete-time optimal control of double integrators and its application in maglev train by Zhang, Hehong, Yu, Xinghuo, Xie, Yanqing, Xiao, Gaoxi, Guo, Wenzhong, Wang, Juan, Long, Zhiqiang

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