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  1. 1
    Software Simulation in GSM Environment and Hardware Implementation of Improved Multi-band Excitation Vocoder

    Software Simulation in GSM Environment and Hardware Implementation of Improved Multi-band Excitation Vocoder by Kuang Jingming Li Feng Liu Botao (Electronic Engineering Department, Beijing Institute of Technology, Beijing 100081)

    Published 1998-01-01
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  2. 2
    An experimental study on water purification performance of modified volcanic rock ecological concrete

    An experimental study on water purification performance of modified volcanic rock ecological concrete by Fei Peng Liu, Jing Xu, Jian Xin Zhao, Li Feng Liu, Meng Ya Zhang, Shu Cheng Tan

    Published 2025-01-01
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