Results 21 to 30 of about 1,007,363 (283)

Seismic waves and surface waves: past and present

open access: yesGeofísica Internacional, 2011
La presente disertación fue presentada por el autor a raíz de una estancia de un año en la Universidad Nacional Autónoma de México. La fértil relación entre las ciencias de la tierra de América Latina con Alemania se remonta a Alejandro von Humboldt.
Peter G. Malischewsky
doaj   +1 more source

Terahertz imaging of sub-wavelength particles with Zenneck surface waves [PDF]

open access: yes, 2013
Impact of sub-wavelength-size dielectric particles on Zenneck surface waves on planar metallic antennas is investigated at terahertz (THz) frequencies with THz near-field probe microscopy.
Delagnes, JC   +9 more
core   +4 more sources

Surface-Wave Extraction Based on Morphological Diversity of Seismic Events

open access: yesApplied Sciences, 2018
It is essential to extract high-fidelity surface waves in surface-wave surveys. Because reflections usually interfere with surface waves on X components in multicomponent seismic exploration, it is difficult to extract dispersion curves of surface waves.
Xinming Qiu, Chao Wang, Jun Lu, Yun Wang
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

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

Horizon effects with surface waves on moving water [PDF]

open access: yes, 2010
Surface waves on a stationary flow of water are considered, in a linear model that includes the surface tension of the fluid. The resulting gravity-capillary waves experience a rich array of horizon effects when propagating against the flow.
Badulin S I   +22 more
core   +2 more sources

Propagation of Surface Waves in a Rotating Coated Viscoelastic Half-Space under the Influence of Magnetic Field and Gravitational Forces

open access: yesFractal and Fractional, 2021
The present manuscript focuses on the study of surface wave propagation in a rotating coated viscoelastic half-space and its response to external forces comprised of the magnetic field and gravitational forces. A celebrated normal mode analysis procedure
Ali Mubaraki   +2 more
doaj   +1 more source

MUD VOLCANO SHUGO, DEPTH STRUCTURE AND MECHANISMS OF ACTIVITY [PDF]

open access: yesГеологія і корисні копалини Світового океану, 2020
Most mud volcanoes are located along large tectonic zones within the Alpine and Central Asian folded regions, the Pacific mobile belt and rift regions of the Atlantic and Indian oceans.
L.E. Sobisevich, A.L. Sobisevich
doaj   +1 more source

Interferometric surface-wave isolation and removal [PDF]

open access: yes, 2007
The removal of surface waves (ground roll) from land seismic data is critical in seismic processing because these waves tend to mask informative body-wave arrivals.
Curtis, Andrew   +3 more
core   +1 more source

Temperature-controlled acoustic surface waves

open access: yesNew Journal of Physics, 2016
Conventional approaches to the control of acoustic waves propagating along boundaries between fluids and hard grooved surfaces are limited to the manipulation of surface geometry.
Norbert Cselyuszka   +3 more
doaj   +1 more source

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