Results 11 to 20 of about 158,615 (263)

Controlling surface waves with temporal discontinuities of metasurfaces [PDF]

open access: yesNanophotonics, 2023
Static reactive metasurfaces allow excitation and propagation of surface waves. In this paper, we theoretically elucidate how surface-wave propagation along a reactive boundary is affected by temporal discontinuities of effective parameters ...
Wang Xuchen   +2 more
doaj   +2 more sources

Dyakonov-Voigt surface waves. [PDF]

open access: yesProc Math Phys Eng Sci, 2019
Electromagnetic surface waves guided by the planar interface of an isotropic dielectric medium and a uniaxial dielectric medium, both non-dissipative, were considered, the optic axis of the uniaxial medium lying in the interface plane. Whereas this interface is known to support the propagation of Dyakonov surface waves when certain constraints are ...
Mackay TG, Zhou C, Lakhtakia A.
europepmc   +6 more sources

Interacting Seismic Waveguides: Multimode Surface Waves and Leaking Modes

open access: yesSeismica, 2023
Recent developments in seismic recording provide dense sampling of the seismic wavefield that allows the extraction of higher surface wave modes as well as the fundamental, and in some circumstances also P-dominated modes.
Brian Kennett
doaj   +1 more source

Non-Linear Damping of Surface Alfvén Waves Due to Uniturbulence

open access: yesFrontiers in Astronomy and Space Sciences, 2022
This investigation is concerned with uniturbulence associated with surface Alfvén waves that exist in a Cartesian equilibrium model with a constant magnetic field and a piece-wise constant density.
Rajab Ismayilli   +4 more
doaj   +1 more source

Estimation of the Soil Layers Thickness Using Multi-Chanel Analysis of Surface Waves and Surface Wave Dispersion Curve [PDF]

open access: yesJournal of Structural and Construction Engineering, 2021
One of the most interesting topics in the geotechnical and geophysical engineering is the use of surface waves to characterize the earth subsurface layers.
Mehdi Hashemi Jokar   +2 more
doaj   +1 more source

Observations and Parametrization of the Turbulent Energy Dissipation Beneath Non-Breaking Waves

open access: yesFluids, 2022
Here, for non-breaking short surface waves, we have experimentally determined the value of the turbulent eddy viscosity νT or its ratio νT*≡νT/ν, where ν is the water kinematic viscosity.
Darek J. Bogucki   +2 more
doaj   +1 more source

The use of surface acoustic waves to evaluate of the near-surface layers of metal processed shot peening

open access: yesDiagnostyka, 2021
The surface layers of low-carbon steel metal subjected to shot peening were studied. The velocity of Rayleigh surface waves of various frequencies in the range of 3-9 MHz by the phase-pulse method using contact piezoelectric transducers measured.
Valentyn Skalsky   +6 more
doaj   +1 more source

Broadband inverted T-shaped seismic metamaterial

open access: yesMaterials & Design, 2021
Seismic metamaterials (SMs) are expected to assist or replace traditional isolation systems owing to their strong attenuation of seismic waves. In this work, a one-dimensional inverted T-shaped SM (1D ITSM) composed of arrays of inverted T-shaped ...
Yi Zeng   +8 more
doaj   +1 more source

Nonlinear TE Electromagnetic Surface Waves in a Ferrite Layered Structure [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2004
Characteristics of TE electromagnetic surface waves propagating in a nonlinear dielectric film bounded by a ferrite cover are examined theoretically. A dispersion relation based on Jacobian Elliptic Functions is derived, which describes the behaviour of ...
Khetam El-Wasife   +2 more
doaj   +1 more source

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

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