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  1. 21

    Impact-Echo Testing Methods for Determining the Defect of Cured-In-Place Pipe by Houssam Mahmoud, Lubos Pazdera

    Published 2025-01-01
    “… Non-destructive testing of cured-in-place pipe (CIPP) ensures that the liner (CIPP) has been successfully installed and that the pipe will function reliably, the Acoustic methods are used to detect cracks or leaks in pipes as the Impact-Echo (IE) method. This study aims to design a device to carry the tools inside the pipe. …”
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    Controller Design Based on Echo State Network with Delay Output for Nonlinear System by Xianshuang Yao, Siyuan Fan, Bo Zhao, Shengxian Cao

    Published 2020-01-01
    “…In this paper, an improved controller design method based on echo state network with delay output (DO-ESN) is proposed for designing the controller of a class of nonlinear system. …”
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  4. 24

    Evaluation of Subsurface Damage in Concrete Deck Joints Using Impact Echo Method by Larry Rickard, Wonchang Choi

    Published 2016-01-01
    “…This study focuses on the evaluation of subsurface damage in deteriorated concrete deck joints, which includes the delamination and corrosion of the reinforcement. Impact echo and surface wave technology, mainly a portable seismic property analyzer (PSPA), were employed to evaluate the structural deficiency of concrete joints. …”
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    Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method by Yun-Lin Liu, Jing-Jing Shi, Jun-Qi Huang, Guang-Shuo Wei, Zhi-Xin Wu

    Published 2019-01-01
    “…In this study, the impact-echo (IE) method was used for detecting defects in grouted lap-splice connections. …”
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    From Heritage Building Information Modelling Towards an ‘Echo-Based’ Heritage Digital Twin by Hord Arsalan, David Heesom, Nigel Moore

    Published 2025-01-01
    “…The aim of this study is to develop a novel approach to complement the existing tangible-based HBIM methods, towards an ‘Echo-based’ Heritage Digital Twin (EH-DT) an early-stage digital representation that leverages intangible, memory-based oral descriptions (or echoes) and AI text-to-image generation techniques. …”
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    Parameter Optimization for Quantitative Signal-Concentration Mapping Using Spoiled Gradient Echo MRI by Gasser Hathout, Neema Jamshidi

    Published 2012-01-01
    “…The purpose of this study was to evaluate and optimize spoiled gradient echo (SPGR) MR sequences for the use of gadolinium (Gd-DTPA) as a kinetic tracer. …”
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    Sur quelques échos de Flaubert dans l’œuvre de Matilde Serao by Rosa Maria Palermo Di Stefano

    Published 2015-12-01
    “…We will analyze in particular the relationship between Madame Bovary and Fantasia, illustrating how, in Matilde Serao’s novel, there are patent echoes of Flaubert’s text but also highlighting the deep differences between the two works.…”
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