Zobrazeno 1 - 10
of 54
pro vyhledávání: '"phase and group velocity"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 9, p 1583 (2024)
A 3D analytical model is formulated based on linearised small-amplitude wave theory to analyse the behaviour of a horizontal, flexible membrane subject to wave–current interaction. The membrane is connected to spring moorings for stability. Green
Externí odkaz:
https://doaj.org/article/b9bc938cedc8472d8d9d9a13e961bc76
Autor:
Piotr Kiełczyński
Publikováno v:
Sensors, Vol 23, Iss 24, p 9879 (2023)
The advent of elastic metamaterials at the beginning of the 21st century opened new venues and possibilities for the existence of new types of elastic (ultrasonic) surface waves, which were deemed previously impossible. In fact, it is not difficult t
Externí odkaz:
https://doaj.org/article/5bc752d74f1445079c1d1982953b70f8
Akademický článek
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Akademický článek
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Akademický článek
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Autor:
amin mirzakhani nafchi
Publikováno v:
مجله مدل سازی در مهندسی, Vol 13, Iss 43, Pp 1-14 (2015)
In this paper, the propagation of ultrasonic guided wave in the isotropic single-layer and multi-layer plate with the assumption that layers are fully connected to each other and top and bottom surfaces of plate are free stress, are investigated and
Externí odkaz:
https://doaj.org/article/4e1482d9d49c4f0494e5babc76ceefe9
Autor:
YEŞİL, Melik Buğra, KURT, Kadri
Publikováno v:
Volume: 8, Issue: 1 157-162
International Journal of Pure and Applied Sciences
International Journal of Pure and Applied Sciences
In this study, we mainly focus our attention on mathematical analysis of the phase and group velocities of low-frequency Alfvèn waves in the E region of the ionosphere. According to observational conclusions it is known that the phase and group velo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=tubitakulakb::032c1db718d373b98042f0a6b5303245
https://dergipark.org.tr/tr/pub/ijpas/issue/70506/1071119
https://dergipark.org.tr/tr/pub/ijpas/issue/70506/1071119
Autor:
Markoulakis, Emmanouil
We give a most comprehensive physical explanation of why light slows down inside a transparent medium like glass and why this slow down in speed is only apparent and the speed of photons inside the medium remain fixed at c, the speed of light in a va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::557e9882d6f75a1e3d934dc52ebf8a59
The wave processes in an inhomogeneous elastic medium under the action of an external load moving along a free surface are investigated. The waveguide properties of the system are preliminarily studied. The multiple roots of the dispersion equations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11bc2a23bee9e51f1125a29c6b73e38a
Publikováno v:
Геофізичний журнал; Том 43 № 3 (2021); 64-81
Geofizicheskiy Zhurnal; Vol. 43 No. 3 (2021); 64-81
Геофизический журнал; Том 43 № 3 (2021); 64-81
Geofizicheskiy Zhurnal; Vol. 43 No. 3 (2021); 64-81
Геофизический журнал; Том 43 № 3 (2021); 64-81
To compute the phase velocities in the weakly anisotropic media, we propose to transform the Christoffel matrix K into an adapted coordinate system, and, then, apply the perturbation theory to the resulting matrix X. For a weakly anisotropic medium,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=scientific_p::9dd820eea1a9c742e6131e27e34571e3
http://journals.uran.ua/geofizicheskiy/article/view/236381
http://journals.uran.ua/geofizicheskiy/article/view/236381