Zobrazeno 1 - 8
of 8
pro vyhledávání: '"L. M. Garcia-Raffi"'
Autor:
L. Barguet, V. Romero-García, N. Jiménez, L. M. Garcia-Raffi, V. J. Sánchez-Morcillo, J.-P. Groby
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract We present a 3-dimensional fully natural sonic crystal composed of spherical aggregates of fibers (called Aegagropilae) resulting from the decomposition of Posidonia Oceanica. The fiber network is first acoustically characterized, providing
Externí odkaz:
https://doaj.org/article/855a04232ecc45718992d2374abb4d93
Autor:
V. Romero-García, É. Chéron, S. Kuznetsova, J.-P. Groby, S. Félix, V. Pagneux, L. M. Garcia-Raffi
Publikováno v:
APL Materials, Vol 9, Iss 10, Pp 101101-101101-8 (2021)
Stealthy hyperuniform point patterns are characterized by a vanishing spatial Fourier transform around the origin of the reciprocal vector space. The long-range point density fluctuations are suppressed as well in materials consisting of such distrib
Externí odkaz:
https://doaj.org/article/55b95d967ab7441f82622aca49028b2b
Autor:
N. Jiménez, V. Romero-García, A. Cebrecos, R. Picó, V. J. Sánchez-Morcillo, L. M. Garcia-Raffi
Publikováno v:
AIP Advances, Vol 6, Iss 12, Pp 121605-121605-9 (2016)
This work theoretically analyzes the sound absorption properties of a chirped multi-layer porous material including transmission, in particular showing the broadband unidirectional absorption properties of the system. Using the combination of the imp
Externí odkaz:
https://doaj.org/article/d7d0189900434a23a0dd53e337f1c01f
Autor:
A. Cebrecos, R. Picó, V. J. Sánchez-Morcillo, K. Staliunas, V. Romero-García, L. M. Garcia-Raffi
Publikováno v:
AIP Advances, Vol 4, Iss 12, Pp 124402-124402-10 (2014)
The enhancement of sound inside a two dimensional exponentially chirped crystal during the soft reflections of waves is experimentally and theoretically explored in this work. The control of this enhancement is achieved by a gradual variation of the
Externí odkaz:
https://doaj.org/article/eb2992db8e594a50b029ee369bfc68da
Publikováno v:
AIP Advances, Vol 1, Iss 4, Pp 041601-041601-9 (2011)
The properties of sonic crystals (SC) are theoretically investigated in this work by solving the inverse problem k(ω) using the extended plane wave expansion (EPWE). The solution of the resulting eigenvalue problem gives the complex band structure w
Externí odkaz:
https://doaj.org/article/0205025b5927411293c937c6f32f2ce9
Publikováno v:
Frontiers in Public Health, Vol 9 (2021)
Countries are recording health information on the global spread of COVID-19 using different methods, sometimes changing the rules after a few days. All of them are publishing the number of new individuals infected, recovered and dead individuals, alo
Externí odkaz:
https://doaj.org/article/4c65c5c3ac3a47788776857025dd1450
Publikováno v:
Modelling in Science Education and Learning, Vol 10, Iss 2, Pp 137-152 (2017)
In this paper we present a comparative analysis of the resolution process of three modeling tasks performed by secondary education students (13-14 years), designed from three different points of view: The Modelling-eliciting Activities, the LEMA proj
Externí odkaz:
https://doaj.org/article/cddf9abf6dd0460da1bcb3ae1b25658a
Autor:
A. Cebrecos, N. Jiménez, V. Romero-García, R. Picó, V. J. Sánchez-Morcillo, L. M. García-Raffi
Publikováno v:
AIP Advances, Vol 6, Iss 12, Pp 121601-121601-8 (2016)
Asymmetric propagation of acoustic waves is theoretically reported in a chirped phononic crystal made of the combination of two different nonlinear solids. The dispersion of the system is spatially dependent and allows the rainbow trapping inside t
Externí odkaz:
https://doaj.org/article/c4d3ac2b24494b898c2fcc9b083a5629