Results 11 to 20 of about 139,920 (262)

Surface Plasmons in Carbon Nanotubes with Elliptical Cross Section [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
The paper describes surface plasmons in metallic carbon nanotubes based on the complete system of Maxwell's equations. Dispersion relation for plasmons in nanotubes with an elliptic cross section has been obtained with the use of the boundary ...
A.V. Korotun   +2 more
doaj   +1 more source

Influence of Physical Parameters of Coal Seam on “Cross” Phenomenon of Rayleigh In-seam Wave Dispersion Curve

open access: yesMeikuang Anquan, 2020
Dispersion curves of Rayleigh channel waves may have “cross” between the fundamental and first higher order modes either in the phase velocities or in group velocities in the low frequency band.
HE Daxi, ZHU Peimin, SHEN Suishui, CAI Wei, WANG Wengang
doaj   +1 more source

Propagation Behavior of Love-Type Waves in a Poro-elastic Medium using Staggered Grid Finite Difference Scheme [PDF]

open access: yesMechanics of Advanced Composite Structures, 2021
The analysis of the propagation behaviour of seismic waves in porous medium requires a mathematical backup. That is pictured here. The present study investigates the propagation behavior of Love-type waves in a poro-elastic medium.
Jayantika Pal, Anjana Ghorai
doaj   +1 more source

Estimating the Shear-Wave Velocities of Shallow Sediments in the Yellow Sea Using Ocean-Bottom-Seismometer Multicomponent Scholte-Wave Data

open access: yesFrontiers in Earth Science, 2022
Scholte-wave dispersion analysis is effective at imaging the relatively low shear-wave velocity of shallow marine sediments in marginal seas. The combination of a four-component ocean-bottom-seismometer (OBS) and a towed air-gun source can economically ...
Yuan Wang   +8 more
doaj   +1 more source

Direct Calculation of the Group Velocity for Two-Dimensional Complex, Composite and Periodic Structures Using a Wave and Finite Element Scheme

open access: yesApplied Sciences, 2021
Guided waves have immense potential for structural health monitoring applications in numerous industries including aerospace. It is necessary to evaluate guided wave dispersion characteristics, i.e., group velocity and phase velocity profiles, for using ...
Muhammad Khalid Malik   +2 more
doaj   +1 more source

Plotting Lamb waves dispersion curves of an aluminum plate by the Semi-Analytical Finite Element (SAFE) method and comparison with analytical curves [PDF]

open access: yesITM Web of Conferences, 2022
It is well known that the propagation of Lamb waves in elastic solid medias depends on the frequency and on the material properties, but it does not depend on the propagation direction in isotropic medias and gives rise to two basic types of modes ...
Jabiri Ayoub   +2 more
doaj   +1 more source

Modeling Magnetostrictive Transducers for Structural Health Monitoring: Ultrasonic Guided Wave Generation and Reception

open access: yesSensors, 2021
Ultrasonic guided waves provide unique capabilities for the structural health monitoring of plate-like structures. They can detect and locate various types of material degradation through the interaction of shear-horizontal (SH) waves and Lamb waves with
Gaofeng Sha, Cliff J. Lissenden
doaj   +1 more source

Near-Capacity Irregular Precoded Linear Dispersion Codes [PDF]

open access: yes, 2008
In this treatise, we propose a novel serial concatenated RSC-coded Irregular Precoded Linear Dispersion Codes (IR-PLDC), which is capable of operating near MIMO channel’s capacity.
Wu, N, L. Hanzo, Hanzo, L., N. Wu
core   +1 more source

Extracting Surface Wave Dispersion Curves with Deep Learning

open access: yes, 2022
Multi-channel Analysis of Surface Waves (MASW) is a seismic method employed to obtain useful information about the shear-wave velocities of the subsurface.
Staring, M.   +5 more
core   +1 more source

Surf-Net: A deep-learning-based method for extracting surface-wave dispersion curves

open access: yesFrontiers in Earth Science, 2023
Surface wave is an energy-rich component of the seismic wavefield and has been widely employed in understanding underground structures due to its dispersive nature.
Yiran Jiang   +11 more
doaj   +1 more source

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