Global Winds Shape Planetary‐Scale Lamb Waves
Geophysical Research Letters, 2023 In 2022, the Hunga volcano eruption in Tonga generated atmospheric pressure waves that propagated globally and produced tsunamis in all the world's oceans.
Ignacio Sepúlveda +2 more
doaj +1 more source
Numerical modeling and measurement by pulsed television holography of ultrasonic displacement maps in plates with through-thickness defects [PDF]
, 2010 We present a novel numerical modeling of ultrasonic Lamb and Rayleigh wave propagation and scattering by through-thickness defects like holes and slots in homogeneous plates, and its experimental verification in both near and far field by a self ...
Amlani, Faisal +6 more
core +1 more source
Sensors, 2018 Peridynamic based elastodynamic computation tool named Peri-elastodynamics is proposed herein to simulate the three-dimensional (3D) Lamb wave modes in materials for the first time.
Subir Patra +2 more
doaj +1 more source
Detection of coatings within liquid-filled tubes and containers by mode conversion of leaky Lamb waves [PDF]
Journal of Sensors and Sensor Systems, 2013 In this paper, a new acoustic sensor principle for coating detection within liquid-filled tubes and containers based on mode conversion of leaky Lamb waves is introduced.
M. Schmitt +6 more
doaj +1 more source
Phase-sensitive detection of Bragg scattering at 1D optical lattices [PDF]
, 2004 We report on the observation of Bragg scattering at 1D atomic lattices. Cold atoms are confined by optical dipole forces at the antinodes of a standing wave generated by the two counter-propagating modes of a laser-driven high-finesse ring cavity.
A. Ludewig +6 more
core +1 more source
Subsonic Lamb waves in anisotropic plates [PDF]
Quarterly of Applied Mathematics, 2002 A six-dimensional complex formalism for analysis of Lamb waves propagating with subsonic speed in anisotropic plates is formulated. Conditions for nonexistence of certain Lamb waves in anisotropic plates are obtained. An example of a transversely isotropic plate having “forbidden” speed at which no subsonic Lamb wave propagates is presented.
openaire +1 more source
Modes Control of Lamb Wave in Plates Using Meander-Line Electromagnetic Acoustic Transducers
Applied Sciences, 2020 The multimode and dispersion characteristics of Lamb waves make them difficult to apply to nondestructive evaluation. This paper presents a paired configuration of a meander-line coil electromagnetic acoustic transducer (EMAT) to generate a single-mode ...
Yinghong Zhang, Zhenghua Qian, Bin Wang
doaj +1 more source
Integrating microfluidics and biosensing on a single flexible acoustic device using hybrid modes [PDF]
, 2020 Integration of microfluidics and biosensing functionalities on a single device holds promise in continuous health monitoring and disease diagnosis for point-of-care applications.
Dodd, Linzi +10 more
core +5 more sources
A Lamb wave lens for acoustic microscopy [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1992 In a conventional scanning acoustic microscope the excited leaky modes contribute significantly to the high contrast obtained in the images. However, all such modes exist simultaneously, and the interpretation of the images is not straightforward, especially in layered media.
Atalar, A., Koymen H., Degertekin F.L.
openaire +4 more sources
Eigenstates of the Atom-Field Interaction and the Binding of Light in Photonic Crystals [PDF]
, 1997 We solve for the exact atom-field eigenstates of a single atom in a three dimensional spherical cavity, by mapping the problem onto the anisotropic Kondo model.
Allen +22 more
core +2 more sources