Ultrasonics最新文献

{"title":"Pipeline corrosion detection via group delay accumulation effect of multi-path circumferential guided wave packets","authors":"Yongqi Cui ,&nbsp;Liang Zeng ,&nbsp;Zhi Luo ,&nbsp;Jiawei Ding","doi":"10.1016/j.ultras.2025.107742","DOIUrl":"10.1016/j.ultras.2025.107742","url":null,"abstract":"<div><div>Circumferential Guided Waves (CGW) inspection offers a prospective approach for detecting corrosion damage in metallic pipeline structures. It could be used to identify the circumferential location of defects and provide quantitative assessments of defects. Typically, the group delay of the first wave packet passing through the corroded region is utilized to evaluate the variation in group velocity due to corrosion. However, the initial corrosion may induce group delay variations that fall below the sampling interval, thereby existing below the detection limit of conventional Time-Of-Flight (TOF) approaches. In this circumstance, a pipeline corrosion detection method based on the group delay accumulation effect of CGW multi-path wave packets is presented in this paper. In particular, it estimates the group delay of multi-path wave packets of normal and corroded CGW responses using the discrete analytic cross-correlation method. The experimental results indicate that due to the accumulation effect of multi-path wave packets, the group delay of the wave packets passing through the corroded region exceeds the sampling frequency limitation and becomes detectable. The multi-path wave packets pass through the corroded region multiple times, and with each pass, the group delay is accumulated. Thus, the accumulated group delay of the wave packets could increase detection sensitivity. Additionally, the stability of variations in group delay and phase shift is also considered. The experimental results show that with the corrosion area increasing, the group delay could consistently maintain the accumulation effect, while the variation in phase shift is irregular.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107742"},"PeriodicalIF":3.8,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144469953","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}

{"title":"Estimating the properties of bone phantom cylinders through the inversion of axially transmitted low-frequency ultrasonic guided waves","authors":"Aubin Chaboty ,&nbsp;Vu-Hieu Nguyen ,&nbsp;Guillaume Haiat ,&nbsp;Pierre Bélanger","doi":"10.1016/j.ultras.2025.107694","DOIUrl":"10.1016/j.ultras.2025.107694","url":null,"abstract":"<div><div>Early detection of osteoporosis has increasingly focused on ultrasonic methods, particularly guided waves in axial transmission to assess cortical bone properties. This study demonstrates the potential of low-frequency measurements (<span><math><mo>&lt;</mo></math></span>500 kHz) for accurately inferring cortical mechanical and geometrical properties. A custom ultrasonic transducer centered at 350 kHz was used to acquire data, processed via a 2D fast Fourier transform to obtain dispersion curves. These were compared with simulations generated using the semi-analytical iso-geometric analysis (SAIGA) method, modeling a quasi-cylindrical bone geometry in void or immersed in olive oil. By incorporating an excitability parameter into the inversion algorithm, the proposed method achieved a less than 5% discrepancy between bone phantom properties determined via SAIGA inversion and bulk wave pulse-echo measurements, demonstrating its accuracy and potential for in vivo applications. Results also showed that high-wavenumber modes predominantly reflect material properties, whereas low-wavenumber modes below 100 kHz are sensitive to the overall bone geometry, highlighting the importance of low frequencies for a global bone characterization.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107694"},"PeriodicalIF":3.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144469954","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}

{"title":"Ultrasound-induced blood–brain barrier opening and selenium-nanoparticle injection lower seizure activity: A mouse model of temporal lobe epilepsy","authors":"Bertrand Mathon ,&nbsp;Vincent Navarro ,&nbsp;Thomas Pons ,&nbsp;Sarah Lecas ,&nbsp;Delphine Roussel ,&nbsp;Stéphane Charpier ,&nbsp;Alexandre Carpentier","doi":"10.1016/j.ultras.2025.107734","DOIUrl":"10.1016/j.ultras.2025.107734","url":null,"abstract":"<div><h3>Background</h3><div>Given the limitations of current treatment options for drug-resistant mesial temporal lobe epilepsy (MTLE), the development of novel, nonablative and minimally invasive surgical techniques is essential.</div></div><div><h3>Objective and Methods</h3><div>In this study, low-intensity pulsed ultrasound (LIPU)- and microbubble-induced (henceforth LIPU) blood–brain barrier (BBB) opening combined with selenium-nanoparticle (SeNP) intravenous injection in a mouse model of mesial temporal lobe optimized the latter’s bioavailability in the brain epileptic tissue of the kainic acid (KA) mouse model of MTLE. We aimed to assess the safety and antiepileptic potential of LIPU-enhanced SeNP delivery against KA-induced seizures using long-term intracranial electroencephalogram video recordings and evaluating neuroinflammation, astrogliosis, neuronal apoptosis and neurogenesis in the hippocampal tissues of mice.</div></div><div><h3>Results</h3><div>First, we established that SeNP intravenous injection combined with LIPU-induced BBB disruption was the most effective method to achieve high and sustained selenium levels in the brain. The safety of this treatment was demonstrated after three treatment sessions, 1-week apart, with no adverse effects observed. Our results further showed a significantly lower frequency of epileptic seizures (–90 %, <em>P</em> = 0.001) in KA mice treated with LIPU + SeNPs compared to sham-treated controls. Short- and long-term histological changes were seen after that combined regimen, including less aberrant neurogenesis in the hippocampus hilum, less neuronal death throughout the hippocampus and less hippocampal microglial activation, which might collectively contribute to the observed antiseizure effect.</div></div><div><h3>Conclusion</h3><div>SeNP injection combined with LIPU-induced BBB disruption demonstrated potential as a promising approach to reduce seizure activity in MTLE; however, statistical comparison did not conclusively establish superiority over SeNPs alone. Further investigations are necessary to consider translational studies in humans.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107734"},"PeriodicalIF":3.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331022","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}

{"title":"Stable acoustic levitation based on coaxial confocal dual-frequency focused ultrasound and vortex beams","authors":"Tingzhen Feng ,&nbsp;Tinghui Meng ,&nbsp;Yuzhi Li ,&nbsp;Gepu Guo ,&nbsp;Juan Tu ,&nbsp;Dong Zhang ,&nbsp;Qingyu Ma","doi":"10.1016/j.ultras.2025.107738","DOIUrl":"10.1016/j.ultras.2025.107738","url":null,"abstract":"<div><div>Acoustic levitation enables the suspension of objects of different materials and scales through the acoustic radiation force (ARF), offering advantages of non-invasive, non-contact, deep penetration, label-free, and biocompatibility. However, achieving stable suspension using focused ultrasound (FU) or focused acoustic vortex (FAV) alone remains challenging due to the absence of both trapping and propulsive forces. This study proposes a stable acoustic levitation scheme that employs coaxial confocal dual-frequency FU and FAV beams, implemented by a focused sector array. Theoretical analyses of force balance for objects with the size much smaller than the wavelength are performed, and ARFs in both axial and radial directions are calculated based on the Gor’kov potential. It is demonstrated that the suspension capability primarily depends on the peak pressure of FU, with the minimum threshold determined by the object's gravity. A longer axial range of upward propulsion, characterized by a lower threshold height and a higher steady-state height, is created by a higher peak pressure of FU. The trapping force is governed by the peak-pressure ratio between FAV and FU, with a constant minimum ratio (0.69) being nearly independent of the density and size of objects. A high-precision dual-frequency holographic direct digital synthesis technology based on phase sampling is developed to design an 8-channel driving system capable of real-time adjustments to frequency, pressure, and phase. Focused fields composed of dual-frequency FU and FAV beams are constructed by an 8-element focused sector array. By independently regulating the peak pressures of FAV and FU, the upward and downward movements and stable suspension of polystyrene particles along the beam axis in water are successfully realized. The proposed scheme significantly enhances the stability and precision of on-axis acoustic levitation, validating its potential for contactless manipulation and container-free processing. Additionally, the dual-frequency holographic technology can improve the regulation flexibility of multiplexed fields, making it adaptable to diverse applications while reducing the driving complexity for source arrays.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107738"},"PeriodicalIF":3.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144364882","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}

{"title":"Wearable ultrasound regulation of blood glucose levels in type 2 diabetic db/db mice","authors":"Yuxin Yang ,&nbsp;Zhongzhi Jin ,&nbsp;Huijuan Zhou ,&nbsp;Yirui Li ,&nbsp;Wanjia Zhang ,&nbsp;Yang Xiang ,&nbsp;Dawei Wu ,&nbsp;Chenghai Li ,&nbsp;Faqi Li","doi":"10.1016/j.ultras.2025.107739","DOIUrl":"10.1016/j.ultras.2025.107739","url":null,"abstract":"<div><div>Type 2 diabetes mellitus (T2DM), a chronic metabolic disorder, imposes a notable burden on human health. Current treatments that require long-term medication and dietary control often face challenges with patient compliance. Although low-intensity pulsed ultrasound (LIPUS) shows promise in regulating blood glucose, the clinical application of traditional ultrasound devices remains challenging due to their large size and high cost. Through theoretical simulation, we designed and fabricated a wearable ultrasound patch with a frequency of 986 kHz and its wearable driving device for use in blood glucose regulation in db/db mice. The liver–pancreas region of the db/db mice was exposed to the wearable ultrasound device with the following parameters: frequency at 986 kHz, duty cycle at 30 %, pulse repetition frequency of 2 kHz, I_SATA of 86.81 mW/cm², and 10-min duration. Results showed that LIPUS-treated db/db mice exhibited a prolonged time for blood glucose to return to baseline levels after 8-week LIPUS exposure. Improved glucose tolerance, reduced insulin resistance, and decreased body weight were also observed. Liver morphology was well maintained, demonstrating LIPUS effectiveness in regulating blood glucose in db/db mice. Biological safety tests indicated no adverse effects on the tissues. This study demonstrates that the use of a wearable ultrasound device, through low-intensity pulsed ultrasound (LIPUS), can effectively regulate blood glucose levels in db/db mice. Our approach offers a noninvasive solution for regulating blood glucose levels in patients with T2DM and holds promise for ultrasound application in metabolic disease treatment.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107739"},"PeriodicalIF":3.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331094","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}

{"title":"Low-intensity therapeutic ultrasound effects on intracellular sodium and reactive oxygen species in ex vivo human islets for control of insulin release","authors":"Andrew W. Chen ,&nbsp;Aleksandar Jeremic ,&nbsp;Vesna Zderic","doi":"10.1016/j.ultras.2025.107737","DOIUrl":"10.1016/j.ultras.2025.107737","url":null,"abstract":"<div><div>Ultrasound has shown potential to non-invasively stimulate insulin release from pancreatic β-cells, but the underlying mechanisms remain poorly understood. Prior studies have suggested that mechanical effects from ultrasound, such as membrane deformation and cavitation, may play a role in modulating ion channel activity and insulin secretion. However, direct observations of intracellular signaling responses in human islets during ultrasound application are limited. In this work we investigate the effects of ultrasound on human islets <em>in vitro</em> using confocal fluorescence microscopy and enzyme-linked immunosorbent assay (ELISA) to measure intracellular sodium and reactive oxygen species (ROS). Human islets obtained through the NIDDK Integrated Islet Distribution Program (IIDP) were treated with ultrasound, and high glucose. Ultrasound was applied using an 800 kHz unfocused transducer for 3 min at 0.5 W/cm² and a 16.6 % duty cycle. Fluorescence imaging showed that high glucose stimulus significantly increased intracellular sodium fluorescence (0.45 ± 0.71 A.U.) compared to ultrasound (0.03 ± 0.10 A.U.) and control (−0.012 ± 0.06 A.U.) (p = 0.001). Ultrasound also increased intracellular sodium fluorescence, though less than glucose. Reactive oxygen fluorescence measured with DCFH-DA indicated increased ROS across all conditions, with ultrasound inducing the highest increase. ELISA measures revealed high glucose caused an initial decrease in extracellular insulin (−14.36 ± 24.69 µU) followed by a moderate increase (2.2 ± 4.76 µU). Our fluorescence microscopy results indicate that high glucose treatment is causing an increase in intracellular sodium levels over the course of the fluorescence recording with that increase being significantly higher (p &lt; 0.05) compared to ultrasound application and control. These results suggest that ultrasound stimulated insulin release does not mimic glucose-driven sodium dynamics but exert bioeffects through shorter time scale mechanical pathways. The trend of higher ROS production in the β-cell with ultrasound application compared to glucose application may suggest that ultrasound induced ROS production occurs at rates higher than physiological glucose induced levels and while ROS generation is metabolic signal in glucose induced insulin release, should be carefully considered when developing ultrasound based therapies for type 2 diabetes.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107737"},"PeriodicalIF":3.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331093","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}

{"title":"Ultrasonic non-linear harmonic generation in air for the characterization of thin membranes over an ultra-wide frequency range","authors":"Lola Fariñas,&nbsp;Tomás E. Gómez Álvarez-Arenas","doi":"10.1016/j.ultras.2025.107735","DOIUrl":"10.1016/j.ultras.2025.107735","url":null,"abstract":"<div><div>Air-coupled ultrasonic methods allow for the rapid and noninvasive characterization of porous materials extracting valuable information regarding their performance and structure directly from their ultrasonic response. Nevertheless, in some cases, both the accuracy and the amount of information can be increased if measurements are taken over a wide frequency range. This can be a significant limitation depending on the transduction technology to be employed. In particular, for the use of PMUTs and CMUTs that are better suited for scaling up industrial deployment of this technology, as these are, typically, narrowband and low frequency transducers when operated in air. To enable the use of low-frequency and narrowband transducers for the characterization of filtration membranes using air-coupled ultrasound, we propose to make use of large amplitude narrowband and low frequency signals and non-linear harmonic generation in the air. To validate the potential of this approach, we characterized several filter materials by applying the proposed technique using different excitation and setup configurations including different ultrasonic sensors: high-sensitivity and broadband piezoelectric self-made transducers (235 kHz, 650 kHz and 1000 kHz); narrowband, low-frequency and low-cost transducers (flexural 40 kHz and radial 120 kHz); and an ultra-wideband receiver self-fabricated based on PVDF film. The results obtained were compared with conventional linear wideband air-coupled ultrasonic measurements, which allowed us to validate this approach. This innovation is expected to have a positive impact on the applicability of ultrasonic techniques, as it will ease the measurement process being a less demanding alternative in terms of equipment needs and time required.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107735"},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312559","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}

{"title":"Temperature-activated coupling effect of nano-Ag coupled ultrasonic transducer during heating process","authors":"Yiqing Gu,&nbsp;Mingyuan Wang,&nbsp;Jiuhong Jia,&nbsp;Shan-Tung Tu","doi":"10.1016/j.ultras.2025.107736","DOIUrl":"10.1016/j.ultras.2025.107736","url":null,"abstract":"<div><div>High-temperature ultrasonic transducers (HTUTs) are critical for structural health monitoring (SHM). While many existing studies on HTUTs prioritize maximizing operational temperatures or focus on singular high-performance piezoelectric materials or robust bonding techniques like brazing for extreme conditions, this work distinguishes itself by comprehensively investigating a synergistic, multi-component system specifically optimized for stable, well-characterized performance and revealing novel interfacial phenomena within the industrially prevalent 350 °C range. We introduce a HTUT innovatively constructed using a nano-Ag coupling layer, graphite conductive glue for reliable electrical contacts, and mica high-temperature wire. The transducer’s performance and underlying mechanisms are systematically assessed from 20 °C to 350 °C. Results demonstrate exceptional high-temperature adaptability with stable echo characteristics. A primary distinguishing contribution is the identification and characterization of a “Temperature-Activated Coupling Effect”. Unlike the monotonic performance degradation often anticipated or observed with increasing temperature in many systems, the Temperature-Activated Coupling Effect reveals a unique window where peak-to-peak voltage and SNR are enhanced after surpassing a specific thermal threshold. This phenomenon, attributed to thermally induced improvements at the nano-Ag coupling interface, offers novel insights for optimizing transducer performance. While the mechanical coupling coefficient showed a complex trend, peaking at 100 °C, the overall significance of this study lies in its holistic design approach and the elucidation of the Temperature-Activated Coupling Effect, offering a practical and mechanistically insightful advancement beyond simply achieving temperature tolerance. This provides a distinct pathway for developing HTUTs with tailored performance enhancements for moderately high-temperature SHM applications, contrasting with approaches solely focused on ultimate temperature limits or single-material improvements.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107736"},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144364972","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}

{"title":"Scaling acoustic vortex traps with topological charge","authors":"Alexandru Crivoi ,&nbsp;Junfei Tai ,&nbsp;Xuanrong Ji ,&nbsp;Zheng Fan","doi":"10.1016/j.ultras.2025.107710","DOIUrl":"10.1016/j.ultras.2025.107710","url":null,"abstract":"<div><div>Three-dimensional trapping of Mie particles using acoustic vortices has been demonstrated through experimental studies leveraging metasurfaces and transducer arrays. While extensive analytical and numerical studies have explored the properties and dimensions of vortex beams, a comprehensive investigation into the dependence of trap size, stability, and positioning on the focused vortex’s topological charge remains lacking. This study presents an analytical, numerical, and experimental analysis of focused vortex particle trapping generated by a plane wave transducer equipped with a phase-modifying metalens. Our results reveal a strong linear dependence of the trap size on the topological charge, aligning with trends previously observed for Gaussian and optical vortex beams. This finding is experimentally validated using a piezoelectric transducer and a custom silicone lens to generate focused vortex beams, successfully trapping polymer particles of varying sizes in a water-filled chamber. Additionally, numerical and experimental data confirm the analytical prediction that increasing the beam’s topological charge shifts the trap position closer to the acoustic source. These results establish crucial design principles for acoustic trapping applications, particularly in biomedical and particle manipulation technologies.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107710"},"PeriodicalIF":3.8,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331091","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}

{"title":"An energy based enhanced imaging method for debonding evaluation in tile panels using Lamb wave time reversal with limited sensor numbers","authors":"Shuke Chen ,&nbsp;Ye Lu ,&nbsp;Rajeshwara Chary Sriramadasu","doi":"10.1016/j.ultras.2025.107732","DOIUrl":"10.1016/j.ultras.2025.107732","url":null,"abstract":"<div><div>This study introduces a novel approach combining the time-reversal method with Lamb waves to evaluate the severity of debonding in composite glazed ceramic tile structures. Recognising that tile edges and corners are most susceptible to debonding, sensors were strategically placed in these locations as a standardised setting. The methodology centres on obtaining a reconstructed signal correlation coefficient that reflects the extent of structural damage. Sparse sensor based Reconstruction Algorithm for Probabilistic Inspection of Defects (RAPID) method is further deployed to image the probability distribution of damage in the investigated structures, where an innovative energy-based weighting factor is introduced for different sensing paths to enhance the detection resolution of the traditional RAPID method. Varied sizes of artificial debonding damage are successfully visualised in constructed images by the proposed method, offering a detailed and uniform approach to assess the extent of debonding across different specimens.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"155 ","pages":"Article 107732"},"PeriodicalIF":3.8,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144296944","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}