Ultrasonics最新文献_第3页

Analytical solution for Lamb wave generation and sensing in thin plates through adhesively bonded flexoelectric transducers 用粘接柔性换能器在薄板上产生和感应兰姆波的解析解

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-28 DOI: 10.1016/j.ultras.2025.107695

Suraj Kumar Rout, Santosh Kapuria

{"title":"Analytical solution for Lamb wave generation and sensing in thin plates through adhesively bonded flexoelectric transducers","authors":"Suraj Kumar Rout, Santosh Kapuria","doi":"10.1016/j.ultras.2025.107695","DOIUrl":"10.1016/j.ultras.2025.107695","url":null,"abstract":"<div><div>Despite numerous studies on flexoelectric devices for actuation, sensing, and energy harvesting applications, their potential for generating and sensing guided waves in thin-walled structures has been largely unexamined. This article presents a theoretical model for the actuation and sensing of Lamb waves in thin isotropic plates, utilizing physically modelled adhesively bonded flexoelectric transducers. The model incorporates shear and peel stresses in the bonding layers to facilitate stress transfer between the transducers and the host plate. The tractions induced by the actuator onto the plate surface are determined by modelling the actuator and plate as Kirchhoff plates. The Lamb wave response of the plate is obtained using elasticity theory in the wavenumber domain spatially and frequency domain temporarily, then converted to space and time domains using the residual theorem and inverse Fourier transform. The strain transfer from the plate to the flexoelectric sensor, along with the resulting electric potential, is evaluated utilizing Kirchhoff plate theory assumptions for the sensor and the plate. For validation, the longitudinal strain at the substrate’s top surface is compared with ABAQUS’ continuum-based finite element results. Numerical studies are presented to demonstrate the influence of the electric field gradient and the thickness of the transducer and adhesive on the time- and frequency-domain Lamb wave response of the plate and the sensor output. The characteristics of the Lamb wave signals produced by flexoelectricity and piezoelectricity are illustrated. The developed model is crucial for realizing applications of flexoelectric materials in material characterization, medical diagnosis, and structural health monitoring.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107695"},"PeriodicalIF":3.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144194908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Excitation design for air-coupled PMUTs for ring-down time reduction via time-domain equivalent circuit models 基于时域等效电路模型的空气耦合PMUTs减振设计

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-28 DOI: 10.1016/j.ultras.2025.107711

Zhongjie Zhang , Liang Zeng , Chunlei Xu , Rodrigo Tumolin Rocha , Tingzhong Xu

{"title":"Excitation design for air-coupled PMUTs for ring-down time reduction via time-domain equivalent circuit models","authors":"Zhongjie Zhang , Liang Zeng , Chunlei Xu , Rodrigo Tumolin Rocha , Tingzhong Xu","doi":"10.1016/j.ultras.2025.107711","DOIUrl":"10.1016/j.ultras.2025.107711","url":null,"abstract":"<div><div>This paper presents an analytical approach to determine optimal offset signals for driving air-coupled piezoelectric micromachined ultrasonic transducers (PMUTs), aimed at effectively reducing ring-down time and broadening bandwidth without compromising transmission sensitivity. To achieve this, a time-domain equivalent circuit simulation platform for PMUTs is developed to quickly obtain and analyze the air-coupled PMUTs response. This platform facilitates to fast obtain the ring-down times for different excitation signals and allows continuous adjustment of parameters for the offset signal waveform. The optimal offset signal waveform is then identified by comparing ring-down times generated across various parameter configurations of offset signals in simulation. The effectiveness of these optimized offset signals achieved through the proposed method is confirmed experimentally with different driving signals. For example, for a PMUT cell with a radius of 360 μm, the ring-down time is decreased by at least 85.49 % with the obtained optimal offset signal for short-period driving signals, while the −6dB bandwidth of the PMUT is increased by more than 3.85 times with the obtained optimal offset signal for long-period driving signals. By suppressing ring-down, the proposed method minimizes the blind zone, sharpens the echo envelope, and enhances positioning accuracy for ultrasound applications. Furthermore, the developed simulation platform has significantly improved the efficiency of time-domain simulations for PMUTs research, providing a solid foundation for future system-level optimizations and studies on PMUTs applications.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107711"},"PeriodicalIF":3.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Real-time super-resolution photoacoustic imaging based on speckle illumination and high-speed computed tomography 基于散斑照明和高速计算机断层成像的实时超分辨率光声成像

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-27 DOI: 10.1016/j.ultras.2025.107709

Simin Wang , Yang Liu , Chao Tao , Xiaojun Liu , Xiaoqin Qian

引用次数: 0

An online data-driven method for predicting crack propagation and remaining fatigue life via combining linear and nonlinear ultrasonic 基于线性和非线性超声的裂纹扩展和剩余疲劳寿命在线预测方法

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-26 DOI: 10.1016/j.ultras.2025.107707

Jiachen Zhou , Lishuai Liu , Haiming Xu , Yanxun Xiang , Fu-Zhen Xuan

{"title":"An online data-driven method for predicting crack propagation and remaining fatigue life via combining linear and nonlinear ultrasonic","authors":"Jiachen Zhou , Lishuai Liu , Haiming Xu , Yanxun Xiang , Fu-Zhen Xuan","doi":"10.1016/j.ultras.2025.107707","DOIUrl":"10.1016/j.ultras.2025.107707","url":null,"abstract":"<div><div>Ultrasonic features play a critical role in evaluating the structural integrity of metallic components, yet current approaches predominantly rely on individual ultrasonic parameters for predictive analysis. This study presents an online data-driven method that combines linear and nonlinear ultrasonic parameters through an optimized weighting function to predict crack propagation and remaining fatigue life (RFL) over the entire fatigue life from microstructural changes to macroscopic crack formation of plate structures. LSTM neural networks are employed to learn sequential features captured by various PZTs. Experimental results on 6061 aluminum plates demonstrate that the proposed method predicts crack length and RFL with average errors of 0.568 mm and 4.50 % of the total fatigue life of the structure, respectively. Comparative analysis reveals that the combined approach with the optimal weighting function outperforms predictions using individual parameters. This method shows significant robustness under varying conditions, underscoring its potential for real-time fatigue monitoring and predictive maintenance.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107707"},"PeriodicalIF":3.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An automatic Doppler angle analysis method for interventional blood flow velocity calibration 介入血流速度标定的自动多普勒角分析方法

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-25 DOI: 10.1016/j.ultras.2025.107706

Junjian Li, Zhengrui Liu, Fankai Kong, Peng Liu, Rongfei Ruan, Hu Tang, Jue Peng

{"title":"An automatic Doppler angle analysis method for interventional blood flow velocity calibration","authors":"Junjian Li, Zhengrui Liu, Fankai Kong, Peng Liu, Rongfei Ruan, Hu Tang, Jue Peng","doi":"10.1016/j.ultras.2025.107706","DOIUrl":"10.1016/j.ultras.2025.107706","url":null,"abstract":"<div><div>Quantitative monitoring of blood flow velocity, is helpful to accurately evaluate the hemodynamic status of patients. However, the traditional blood flow velocity calibration method depends on manual operation, and it is not suitable for interventional blood flow velocity measurement. In this study, a new intravascular ultrasound (IVUS) catheter design combined with an automated Doppler velocity angle calibration method was investigated. Our ultrasound catheter will not have non-uniform rotation distortion (NURD), so the original IVUS images will be directly used to analyze Doppler angle. The deflection of ultrasound catheter is analyzed and simulated, and the formulas for estimating Doppler angle and calibrating blood flow velocity are given. The U-Net-based model segmented the lumen region from the image, and then used an ellipse to quickly fit the lumen boundary. A hemodynamic circulation circuit was constructed, and the measurements of ultrasound catheters and commercially available instruments were compared. The model achieves good segmentation performance, Dice similarity coefficient is 99.464%，Jaccard index is 98.934%, Hausdorff distance is 0.15780 mm. Statistical tests showed that the cosines of the true and estimated Doppler angles have a good correlation and consistency. The mean absolute and relative errors of the estimated Doppler angles are 1.49374° and 7.42654%, respectively. The mean relative error of calibrated blood flow velocity was 8.453925%. This study may have a good application prospect in ultrasound hemodynamic monitoring.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107706"},"PeriodicalIF":3.8,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zero-frequency wave based-SAFT imaging for high-density polyethylene with irregular surfaces 基于零频率波的不规则表面高密度聚乙烯saft成像

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-25 DOI: 10.1016/j.ultras.2025.107703

Gonglin Wang, Caibin Xu, Quanqing Lai, Mingxi Deng

{"title":"Zero-frequency wave based-SAFT imaging for high-density polyethylene with irregular surfaces","authors":"Gonglin Wang, Caibin Xu, Quanqing Lai, Mingxi Deng","doi":"10.1016/j.ultras.2025.107703","DOIUrl":"10.1016/j.ultras.2025.107703","url":null,"abstract":"<div><div>When an ultrasound tone-burst propagates in an elastic solid with quadratic nonlinearities, a pulse wave with a carrier frequency of zero (referred to as zero-frequency wave, ZFW) will be generated due to material nonlinearity. The low acoustic attenuation characteristics of ZFW is particularly well-suited for defect detection of highly attenuative materials. In our previous study, large detection depths in high-density polyethylene (HDPE) have been demonstrated using ZFW. However, in practical engineering applications, defect detection in HDPE with irregular surfaces is hindered by limitations in complex propagation path and low coupling efficiency. To address this issue, using ZFWs generated by the propagation of high-frequency ultrasonic waves, a water immersion SAFT imaging method is proposed for HDPE with irregular surfaces. The proposed method, based on the priori knowledge of geometric interface between water and the measured HDPE with irregular surface, utilizes the Snell’s law to get the propagation paths of the ZFWs. The propagation time of ZFW in water and HDPE is computed using these paths, through which its time-of-flight is obtained. The time-of-flight is subsequently utilized to calculate the intensity of each pixel. Finally, the normalized imaging results are finally generated after iterative computations across all scanning points. Experimental results show that the proposed method is capable of detecting side-drilled hole defects with a diameter of 1 mm and a longitudinal depth of approximately 100 mm in HDPE with irregular surfaces including incline surface, convex surface, and concave surface. These findings validate the effectiveness of the proposed method in detecting defects in highly attenuative materials with irregular surface, demonstrating its potential as a valuable tool for non-destructive testing.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107703"},"PeriodicalIF":3.8,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantized topological phase of ultrasonic guided wave with spin orbit interaction 自旋轨道相互作用下超声导波的量子化拓扑相位

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-24 DOI: 10.1016/j.ultras.2025.107700

Sourav Banerjee

{"title":"Quantized topological phase of ultrasonic guided wave with spin orbit interaction","authors":"Sourav Banerjee","doi":"10.1016/j.ultras.2025.107700","DOIUrl":"10.1016/j.ultras.2025.107700","url":null,"abstract":"<div><div>Acoustic and ultrasonic waves have recently been described to have quantifiable spin states. Polarization vectors that evolve over time carry information of the spin state of wave propagates in a media, that is generally non observable. Quantum analogous spin state of ultrasonic guided wave is primarily manifest nonzero spin angular momentum (SAM) and its integration over the wave path gives the topological phase acquired due to the modified polarity. The topological geometric phase gives a new opportunity to quantify damage state in materials using ultrasonic guided wave that were usually considered difficult. In this article it is shown that ultrasonic guided waves must demonstrate quantifiable topological phenomena, naturally, if specific spin orbit interaction (SOI) driven actuation is activated. By inducing artificially created SOI, SAM density can be calculated from the fundamental conserved quantity. They reveal material independent but polarity dependent behavior of wave propagation and manifest as a topological phenomenon. In this article SAM density of ultrasonic guided waves is found from the fundamentals of Noether current and three-dimensional SOI. It is shown that polarity driven manifestation of SAM can be quantified, and topological geometric phase can be calculated. Utilizing two mirrored damages in different quadrants in an isotropic media that are equivalent to each other and are indistinguishable, it is shown that SOI induced SAM and polarity driven topological phase have qualitative and quantitative differences and could be used as a parameter for ultrasonic NDE.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107700"},"PeriodicalIF":3.8,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical investigation of optimal transmission-reception conditions for aliasing-free ultrasound localization microscopy 无混叠超声定位显微镜最佳收发条件的数值研究

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-22 DOI: 10.1016/j.ultras.2025.107704

Hyunwoo Cho , Jaebin Lee , Seongjun Park , Yangmo Yoo

{"title":"Numerical investigation of optimal transmission-reception conditions for aliasing-free ultrasound localization microscopy","authors":"Hyunwoo Cho , Jaebin Lee , Seongjun Park , Yangmo Yoo","doi":"10.1016/j.ultras.2025.107704","DOIUrl":"10.1016/j.ultras.2025.107704","url":null,"abstract":"<div><div>Ultrasound localization microscopy (ULM) can surpass the diffraction-limited resolution of conventional ultrasound by localizing individual microbubbles with sub-pixel precision. However, if the point-spread function (PSF) of the imaging system is insufficiently sampled, aliasing artifacts arise and degrade both microbubble localization and motion correction accuracy. In this study, we derive and validate a set of transmit–receive conditions that ensure artifact-free PSFs without unnecessary computational overhead. We demonstrate that by appropriately selecting the plane-wave steering angles, transmit pulse cycle count, and receive aperture (F-number) in relation to the pixel spacing, high spatial frequencies in the PSF remain within the Nyquist limit for all imaging depths. Through a series of simulations, wire phantom tests, and custom flow phantom experiments, we compare undersampled, oversampled, and balanced parameters. The balanced configurations, where the maximum frequency of the PSF matches the beamforming grid, consistently mitigate aliasing artifacts, eliminate grid-like patterns, and preserve microbubble trajectories under sub-pixel translations. In a flow phantom study, we further confirm that ULM images obtained with these optimized settings retain fine details without incurring the substantial computational costs of an overly fine sampling grid. Our findings highlight the importance of analysing PSF bandwidth in both lateral and axial dimensions and offer a straightforward method to align transmit pulse width, receive aperture, and grid spacing. Ultimately, this approach provides a pathway toward efficient, high-fidelity ULM, with significant implications for real-time super-resolution imaging in clinical and preclinical environments.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"154 ","pages":"Article 107704"},"PeriodicalIF":3.8,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasonic transmission of longitudinal modes in miniaturized cylindrical waveguides 微型化圆柱波导中纵向模态的超声传输

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-21 DOI: 10.1016/j.ultras.2025.107670

Ibrahima Touré, Maxime Bilodeau, Nicolas Quaegebeur

{"title":"Ultrasonic transmission of longitudinal modes in miniaturized cylindrical waveguides","authors":"Ibrahima Touré, Maxime Bilodeau, Nicolas Quaegebeur","doi":"10.1016/j.ultras.2025.107670","DOIUrl":"10.1016/j.ultras.2025.107670","url":null,"abstract":"<div><div>This study investigates the transmission and reflection of axisymmetric longitudinal L(0,<span><math><mi>n</mi></math></span>) modes in miniaturized cylindrical waveguides. The theoretical framework developed herein focuses on the analysis of the propagation of longitudinal modes within a homogeneous, elastic, and isotropic cylindrical waveguide with a varying cross-section. The novelty of this paper is found in the energy calculations and the consideration of higher-order modes for accurately describing the transmission and reflection coefficients at waveguide transitions. A 2D axisymmetric Finite Element Method (FEM) is used to calculate these coefficients based on the modal energy of propagating modes across different frequencies. The influence of geometrical and material properties, along with modal density, is examined numerically. Results demonstrate that optimal transmission occurs when the wavenumber ratio of propagating modes in connected waveguides is an integer, leading to effective coupling. Experimental validation on steel rods with diameters from 4 mm to 0.8 mm shows strong agreement with numerical results. It is observed that the L(0,1) mode around 1 MHz is the most suitable mode for efficient transmission between the waveguides. In contrast, the higher-order modes (L(0,2) around 1.25 MHz, L(0,3) between 1.3 and 1.5 MHz, and L(0,4) from 2.25 MHz) exhibit weak or irregular transmission, with more pronounced reflection behaviors, indicating that they are not optimal for efficient transmission in this configuration. These findings underline the importance of an optimized geometric transition in enhancing the transmission efficiency in such miniaturized waveguides.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"154 ","pages":"Article 107670"},"PeriodicalIF":3.8,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deformation mechanism and microstructure evolution of TC4 alloy during ultrasonic energy field-assisted deformation TC4合金在超声能量场辅助变形过程中的变形机理及组织演变

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2025-05-20 DOI: 10.1016/j.ultras.2025.107702

Meng Gao , DongXu Wen , Guan Liu , Liang Huang , JianJun Li

{"title":"Deformation mechanism and microstructure evolution of TC4 alloy during ultrasonic energy field-assisted deformation","authors":"Meng Gao , DongXu Wen , Guan Liu , Liang Huang , JianJun Li","doi":"10.1016/j.ultras.2025.107702","DOIUrl":"10.1016/j.ultras.2025.107702","url":null,"abstract":"<div><div>Ultrasonic vibration-assisted compression tests on TC4 alloy are performed at room temperature under various deformation and ultrasonic conditions. The influence of strain rate and Ultrasonic Energy Field (UEF) on plastic deformation behaviors and microstructure evolution is analyzed. The experimental results indicate that the flow stress exhibits a decreasing trend either with the decrease of strain rate or the application of UEF. As the strain rate increases, the slip system activity is impaired with the deceleration of dislocation motion. The uneven intragranular deformation takes place, and the grain structure shows the severe elongation characteristics. With the application of UEF, the high activity of slip system enhances dislocation motion, and boosts the formation of soft orientations <span><math><mrow><mo><</mo><mn>0001</mn><mo>></mo></mrow></math></span> in basal plane and <span><math><mrow><mo><</mo><mn>10</mn><mover><mrow><mn>1</mn></mrow><mrow><mo>¯</mo></mrow></mover><mn>0</mn><mo>></mo></mrow></math></span> in prismatic plane, which further facilitates dislocation multiplication and uniform dislocation distribution. Moreover, due to high input ultrasonic energy, the highly active dislocations are rearranged into subgrain boundaries and are subsequently evolved into grain boundaries. Many new fine grains are formed around the initial large grains, and the UEF shows a positive effect on grain refinement. Additionally, grain rotation toward the soft orientations is promoted under the application of UEF, resulting in the formation of <span><math><mrow><mo><</mo><mn>0001</mn><mo>></mo><mo>/</mo><mo>/</mo><mtext>ND</mtext></mrow></math></span> and <span><math><mrow><mo><</mo><mn>10</mn><mover><mrow><mn>1</mn></mrow><mrow><mo>¯</mo></mrow></mover><mn>0</mn><mo>></mo><mo>/</mo><mo>/</mo><mtext>ND</mtext></mrow></math></span> textures.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"154 ","pages":"Article 107702"},"PeriodicalIF":3.8,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0