3D imaging of Sub-Millimeter defects using Laser-Generated broadband surface waves and Multi-Band Space-Wavenumber analysis [0.03%]
基于激光激发宽带表面波的亚毫米缺陷的三维成像及多频散射斑分析方法
Min Sheng,Chuanyu Lu,Hao Chen et al.
Min Sheng et al.
To address the challenges associated with the 3D imaging of submillimeter-scale defects and submillimeter crack propagation monitoring, this paper proposes a novel 3D imaging method based on laser generated broadband surface waves and multi...
Machine learning-driven ultrasound echo feature analysis for accurate classification and area prediction of HIFU-induced lesions: ex vivo study [0.03%]
基于机器学习的超声回波特征分析驱动的高强度聚焦超声介导损伤的分类和面积预测：离体研究
Ge Gong,Tao Liu,Baicheng Xing et al.
Ge Gong et al.
In high-intensity focused ultrasound (HIFU) treatment, precise and reliable prediction of lesion phenotype and area yet remains challenging due to the intricate structures and heterogeneous responses of biological tissues. Conventional moni...
Ultrasound imaging optimization via frequency-dependent weighting for angular field-of-view [0.03%]
基于频率的权重调整以增大视场角的超声成像优化方法
Wen Zhang,Guanjun Yin,Dongxu Zhou et al.
Wen Zhang et al.
Delay-and-Sum (DAS) based ultrasound image reconstruction often suffers from grating-lobe artifacts and reduced signal-to-noise ratio when full-aperture array data are utilized. Although applying a fixed F-number weighting (effectively a st...
Bio-inspired miniature self-moving ultrasonic piezoelectric actuator: combinatorial design, analysis, and experimental investigation [0.03%]
一种生物启发的微型自走式压电超声马达：组合设计、分析与实验研究
Binbin Zhu,Yimu Guo,Chenhui Fan et al.
Binbin Zhu et al.
Fast movement, multi-degree-of-freedom motions (multi-DOF), and strong payload capacity are key performance indicators for miniature self-moving piezoelectric actuators, yet balancing these in structural design is challenging. Inspired by t...
Design of sensor cluster configurations and impact localization in composite plates using deterministic maximum likelihood [0.03%]
基于确定性极大可能法的复合板传感器阵列布局及损伤定位研究
Xu Zeng,Deshuang Deng,Shuyi Ma et al.
Xu Zeng et al.
Sensor cluster-based methods have demonstrated significant potential for impact localization of composite structures owing to their enhanced spatial resolution and beamforming characteristics. However, how to select an optimal array configu...
Elastodynamics-encoded recurrent neural networks for characterization of anisotropic elastic constants and stiffness degradation [0.03%]
各向异性弹性常数和刚度退化特征的弹动力学编码循环神经网络
Ziye Guo,Ruohua Zhou,Yan Gao et al.
Ziye Guo et al.
Physics-informed neural networks (PINNs) have been applied to elastodynamic inverse problems. However, the soft enforcement of the physics through the loss function leads to convergence difficulties and limited interpretability, particularl...
Analytical framework for modelling body-wave scattering and diffusion in concrete [0.03%]
混凝土体波散射和扩散的建模分析框架
Hao Cheng,Katrin Löer,Max A N Hendriks et al.
Hao Cheng et al.
This work presents a concrete-specific analytical framework for modelling body-wave scattering by explicitly tailoring multiple-scattering theory to the microstructural characteristics of concrete. Instead of treating scattering parameters ...
Fast frequency-domain symbolic coherence total focusing method for array electromagnetic acoustic transducer [0.03%]
快速频域符号相干总聚焦法在阵列电磁声换能器中的应用研究
Zongjian Zhang,Zhengguo Fu,Yang Zheng et al.
Zongjian Zhang et al.
Array-based non-destructive testing (NDT) has become a key advancement in modern NDT, offering large-area coverage, rapid imaging, and real-time data acquisition, significantly improving inspection efficiency and underpinning automated and ...
Energy transfer mechanism and performance evaluation of the underwater ultrasonic drilling corer for seabed rock sampling [0.03%]
海底岩心钻探取样的水下超声波钻井器的能传传递机制及其性能评估
He Li,Zhaoyang Chen,Zhanpeng Zhang et al.
He Li et al.
To address the problems of high-power consumption, large weight-on-bit, significant disturbance, and difficulties in sealing and waterproofing in the traditional Deep-sea Seafloor Drill, a novel piezoelectric-driven Underwater Ultrasonic Dr...
A model of an automatic dichotomous method for damage detection of hybrid materials based on the raw ultrasonic signal [0.03%]
一种基于原始超声信号的混合材料损伤检测自动二分法模型
Patryk Jakubczak,Adam Janek
Patryk Jakubczak
One of the techniques applicable to assess the condition of multi-layered, hybrid structures is ultrasonic testing (UT). Essentially, a complex signal is received, which is typically processed using advanced signal processing techniques. Ho...