Results 21 to 30 of about 1,309 (186)

Study of Lamb Waves for Non-Destructive Testing Behind Screens

EPJ Web of Conferences, 2018
The inspection and control of sodium-cooled fast reactors (SFR) is a major issue for the nuclear industry. Ultrasonic solutions are under study because of the opacity of liquid sodium.
Kauffmann P., Ploix M.-A., Chaix J.-F., Gueudré C., Corneloup G., Baqué F.   +5 more
doaj   +1 more source

A Novel Baseline-Free Method for Damage Localization Using Guided Waves Based on Hyperbola Imaging Algorithm

Sensors, 2023
Most imaging methods based on ultrasonic Lamb waves in structural health monitoring requires reference signals, recorded in the intact state. This paper focuses on a novel baseline-free method for damage localization using Lamb waves based on a ...
Jichao Xu, Wujun Zhu, Xunlin Qiu, Yanxun Xiang   +3 more
doaj   +1 more source

Comparative Study of Coupling Techniques in Lamb Wave Testing of Metallic and Cementitious Plates

Sensors, 2019
Lamb waves have emerged as a valuable tool to examine long plate-like structures in a faster way compared to conventional bulk wave techniques, which make them attractive in non-destructive testing.
Santiago Vázquez, Jorge Gosálbez, Ignacio Bosch, Alicia Carrión, Carles Gallardo, Jordi Payá   +5 more
doaj   +1 more source

Fibre Bragg Gratings in Embedded Microstructured Optical Fibres Allow Distinguishing between Symmetric and Anti-Symmetric Lamb Waves in Carbon Fibre Reinforced Composites

Sensors, 2017
Conventional contact sensors used for Lamb wave-based ultrasonic inspection, such as piezo-electric transducers, measure omnidirectional strain and do not allow distinguishing between fundamental symmetric and anti-symmetric modes. In this paper, we show
Ben De Pauw, Sidney Goossens, Thomas Geernaert, Dimitrios Habas, Hugo Thienpont, Francis Berghmans   +5 more
doaj   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

Advanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi, Hiba Ali, Barbara Belza, Mattia F. Palermo, Claudio Gerbaldi, Giuseppe Antonio Elia, Nagore Ortiz‐Vitoriano   +6 more
wiley   +1 more source

Damage Localization on Composite Structures Based on the Delay-and-Sum Algorithm Using Simulation and Experimental Methods

Sensors, 2023
Damage detection and localization based on ultrasonic guided waves revealed to be promising for structural health monitoring and nondestructive testing.
Cedric Bertolt Nzouatchoua, Mourad Bentahar, Silvio Montresor, Nicolas Colin, Vincent Le Cam, Camille Trottier, Nicolas Terrien   +6 more
doaj   +1 more source

Localized 3D acoustic streaming in microdroplets using high‐frequency micro‐beam IDTs

Droplet, EarlyView.
Miniaturized 160 MHz acoustic microbeam transducers, with a size much smaller than droplets, enable precise localized actuation, generating complex three‐dimensional streaming and tunable particle aggregation. This concept provides high‐resolution, non‐contact fluid manipulation for biosensing, lab‐on‐chip diagnostics, and targeted drug screening ...
D. Sánchez‐Saldaña, M. Fernandino, C.A. Dorao   +2 more
wiley   +1 more source

Air-coupled Ultrasonic Inspection with Adaptive Lamb Wave Control [PDF]

Proceedings of the 16th International Conference on Informatics in Control, Automation and Robotics, 2019
Single-sided air-coupled ultrasonic inspection has some beneficial properties compared to water-coupled ultrasonic inspection or double-sided ultrasonic testing. The absence of the need for water leads to easier process handling on the one hand e.g. when manufacturing aircraft components.
Schönheits, Manfred, Huber, Armin, Gänswürger, Philipp   +2 more
openaire   +3 more sources

Numerical and experimental investigations on second-order combined harmonic generation of Lamb wave mixing

AIP Advances, 2020
The generation of second- and third-order combined harmonics induced by the interaction of two primary Lamb waves with different frequencies has been analyzed theoretically and observed experimentally in our previous research [W. Li et al., J. Appl. Phys.
Weibin Li, Yaru Xu, Ning Hu, Mingxi Deng
doaj   +1 more source

Intramuscular Fat Infiltration and Knee Osteoarthritis: A Systematic Review and Meta‐Analysis

Physiotherapy Research International, Volume 31, Issue 4, October 2026.
ABSTRACT Background Intramuscular fat infiltration (IMFI) is considered to be closely associated with knee osteoarthritis (KOA); however, its overall association, muscle‐specific involvement, and clinical relevance remain unclear. Objective To quantify the association between IMFI and KOA, identify affected muscle groups, and evaluate prognostic value.
Lili Yu, Cong Chen, Guancong Zhang, Qiuchen Huang, Miao Ye, Yukiko Makihara, Yusuke Nishida   +6 more
wiley   +1 more source