Results 1 to 10 of about 1,676,852 (188)

Surface-wave coupling in double Floquet sheets supporting phased temporal Wood anomalies [PDF]

open access: yesNanophotonics, 2022
We investigate symmetry-selective surface-mode excitation in a general periodically time-modulated double-layer system, where the modulation of the two layers has a constant phase difference.
Tsai Ya-Wen   +4 more
doaj   +2 more sources

TRANSVERSE ISOTROPIC CRUST STRUCTURE BENEATH THE NORTHWEST AND CENTRAL NORTH ANATOLIA REVEALED BY SEISMIC SURFACE WAVES PROPAGATION [PDF]

open access: yesMalaysian Journal of Geosciences, 2021
The Anatolian crust, which is abnormally hot, is widely deformed by subduction related volcanism. Suture zones, transform faults, thrusts and folds and metamorphic core complexes add to the geological complexity.
Özcan Çakır
doaj   +1 more source

Robust and High-Fidelity 3D Face Reconstruction Using Multiple RGB-D Cameras

open access: yesApplied Sciences, 2022
In this paper, we propose a robust and high-fidelity 3D face reconstruction method that uses multiple depth cameras. This method automatically reconstructs high-quality 3D face models from aligned RGB-D image pairs using multi-view consumer-grade depth ...
Haocheng Peng, Li Yang, Jinhui Li
doaj   +1 more source

Full Complex-Amplitude Modulation of Surface Waves Based on Spin-Decoupled Metasurface

open access: yesMicromachines, 2023
This work proposes a method for surface wave (SW) coupling along with flexible complex amplitude modulation of its wavefront. The linearly polarized incident plane wave is coupled into the surface mode with complex wavefront by exploiting the spin ...
Quan Li   +5 more
doaj   +1 more source

Automatic Extraction of Surface Wave Dispersion Curves Using Unsupervised Learning and High‐Resolution Tau‐p Transform

open access: yesEarth and Space Science, 2023
Dispersion curves for surface wave recordings are required input for many surface wave inversion methods to image subsurface shear wave velocity distribution, while the conventional extraction of dispersion curves requires significant amount of human ...
Hai Yao   +4 more
doaj   +1 more source

Review of progress in seismic attenuation tomography

open access: yes地球与行星物理论评, 2022
Global and regional seismic attenuation models reveal anelastic heterogeneous structures in the earth, which shed new light on the temperature, melt and volatile fraction of Earth's interior, as well as the geodynamic processes and source focal ...
Andy Dai   +3 more
doaj   +1 more source

Dyakonov–Voigt surface waves [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 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 ...
Tom G. Mackay   +2 more
openaire   +4 more sources

Quantitative Imaging Detection of Additive Manufactured Parts Using Laser Ultrasonic Testing

open access: yesIEEE Access, 2020
Selective laser melting (SLM) is an important method of additive manufacturing, however it has some disadvantages such as poor surface qualities of the formed parts and the appearances of small surface defects.
Yi Jiang   +7 more
doaj   +1 more source

PROPERTIES OF THE SURFACE WAVE IN THE PLANAR GROUNDED DIELECTRIC STRUCTURE EXCITED BY A TWO-LAYER MICROSTRIP GRATING [PDF]

open access: yesRadio Physics and Radio Astronomy, 2018
Purpose: Determining the amplitude and phase characteristics of the surface wave in a planar dielectric structure excited by a two-layer microstrip array of rectangular radiators and ascertaining the possibilities of using it to excite the phased antenna
D. G. Seleznyov, I. I. Reznik
doaj   +1 more source

Tomographic Image of Shear Wave Structure of NE India Based on Analysis of Rayleigh Wave Data

open access: yesFrontiers in Earth Science, 2021
The major scientific purpose of this work is to evaluate the geodynamic processes involved in the development of tectonic features of NE India and its surroundings. In this work, we have obtained tomographic images of the crust and uppermost mantle using
Amit Kumar   +4 more
doaj   +1 more source

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