Results 11 to 20 of about 1,001,716 (265)

Optimization Design of Surface Wave Electromagnetic Acoustic Transducers Based on Simulation Analysis and Orthogonal Test Method

open access: yesSensors, 2022
The energy conversion of electromagnetic acoustic transducers (EMATs) is typically lower, which seriously restricts the application of EMATs in the field of non-destructive testing and evaluation. In this work, parameters of surface wave EMATs, including
Ju Lan   +3 more
doaj   +1 more source

Seismological reference earth model in South China (SREM-SC): Upper mantle

open access: yesFrontiers in Earth Science, 2023
This work is the mantle component of constructing the Seismological Reference Earth Model in South China (SREM-SC). Although there has been a wide range of research for imaging the upper mantle structures beneath South China, most of them focus on the ...
Qingya Tang   +5 more
doaj   +1 more source

Supershear Rayleigh waves at a soft interface [PDF]

open access: yes, 2013
We report on the experimental observation of waves at a liquid foam surface propagating faster than the bulk shear waves. The existence of such waves has long been debated, but the recent observation of supershear events in a geophysical context has ...
Cobelli, Pablo   +2 more
core   +3 more sources

Generation of Surface Waves Due to Initial Axisymmetric Surface Disturbance in Water with a Porous Bottom

open access: yesInternational Journal of Applied Mechanics and Engineering, 2019
A two-dimensional Cauchy Poisson problem for water with a porous bottom generated by an axisymmetric initial surface disturbance is investigated here. The problem is formulated as an initial value problem for the velocity potential describing the motion ...
P. Kundu, B.N. Mandal
doaj   +1 more source

Temperature–Mediated Transition From Dyakonov Surface Waves to Surface–Plasmon–Polariton Waves

open access: yesIEEE Photonics Journal, 2016
The propagation of electromagnetic surface waves, guided by the planar interface of a temperature-sensitive isotropic material and a temperature-insensitive uniaxial material, each characterized by a relative permittivity dyadic, was investigated ...
Tom G. Mackay, Akhlesh Lakhtakia
doaj   +1 more source

Surface Wave Attenuation in Multilayer Structures With Lossy Media and Impedance Surfaces

open access: yesIEEE Access, 2021
A methodology to analyze the attenuation constant of surface wave propagating in general multilayer structures is proposed. The multilayer structure may include any number of layers, that can be made up of lossy dielectric, magnetic-material, and ...
Varsha Mishra   +2 more
doaj   +1 more source

Resonant surface waves

open access: yesJournal of Fluid Mechanics, 1973
Small amplitude forced horizontal or vertical oscillations of a container of liquid with a free surface may give rise to motions in the liquid on a scale much greater than the forcing amplitude. Three such situations are analysed and, in those cases where the response is still small compared with the dimensions of the container, explicit asymptotic ...
Ockendon, J, Ockendon, H
openaire   +2 more sources

Excite Spoof Surface Plasmons with Tailored Wavefronts Using High‐Efficiency Terahertz Metasurfaces

open access: yesAdvanced Science, 2020
Spoof surface plasmons (SSPs) play crucial roles in terahertz (THz) near‐field photonics. However, both high‐efficiency excitation and wavefront engineering of SSPs remain great challenges, which hinder their wide applications in practice. Here, a scheme
Zhuo Wang   +9 more
doaj   +1 more source

Mathematical Model of the On-Board Antenna of Reentry Spacecraft Taking into Account Surface Waves

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2022
Introduction. The onboard antennas of the returned hypersonic aircraft are weakly directional, which is achieved by radiation from the open end of the waveguide. When passing through dense layers of the atmosphere, they are exposed to aerodynamic heating,
V. F. Mikhailov, I. V. Mazhnik
doaj   +1 more source

Dyakonov Surface Waves

open access: yesOptics and Photonics News, 2009
Postprint (published version)
Torner Sabata, Lluís   +2 more
openaire   +3 more sources

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