A SAFT Method for the Detection of Void Defect inside a Ballastless Track Structure Using Ultrasonic Array Sensors by Wen-Fa Zhu, Xing-Jie Chen, Zai-Wei Li, Xiang-Zhen Meng, Guo-Peng Fan, Wei Shao, Hai-Yan Zhang

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Time-Domain Topological Energy Imaging Method of Concrete Cavity Defect by Lamb Wave by Wen-Fa Zhu, Wei Shao, Le-Le Peng, Guo-Peng Fan, Xing-Jie Chen, Shu-Bin Zheng, Hai-Yan Zhang

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A method for long-term on-line monitoring of temperature stress of continuously welded rail by Liu-Jia Sun, Zai-Wei Li, Wen-Fa Zhu, Yue-Lei He, Guo-Peng Fan, Wen-Ping Fang, Wei Shao

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