Littérature scientifique sur le sujet « Résonances de transmission parfaites »
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Articles de revues sur le sujet "Résonances de transmission parfaites"
Allouche-Benayoun, Joëlle. « Marinella Carosso, La généalogie muette. Résonances autour de la transmission en Sardaigne ». Archives de sciences sociales des religions, no 144 (1 octobre 2008) : 163–274. http://dx.doi.org/10.4000/assr.18993.
Texte intégralSawaya, Michèle. « Épreuves projectives et transmission intergénérationnelle et transgénérationnelle du vécu de guerre ». Perspectives Psy 62, no 2 (avril 2023) : 118–26. http://dx.doi.org/10.1051/ppsy/2023622118.
Texte intégralBoyer, Sylvie. « Échographie imaginaire : formes et figures poétiques d’un impensé intrafoetal dans l’oeuvre de Michel Leiris ». Protée 35, no 1 (27 juin 2007) : 75–84. http://dx.doi.org/10.7202/015891ar.
Texte intégralBonnain-Dulon, Rolande. « Marinella Carosso La généalogie muette. Résonances autour de la transmission en Sardaigne Paris, Éditions de la MSH/CNRS Éditions, 2006, 295 p. et 4 p. de pl. » Annales. Histoire, Sciences Sociales 65, no 6 (décembre 2010) : 1569–72. http://dx.doi.org/10.1017/s0395264900038026.
Texte intégralBuisson, André. « Carosso M., La généalogie muette. Résonances autour de la transmission en Sardaigne, 2006, Paris, CNRS, Collection : Chemins de l'ethnologie, 295 p. » Géocarrefour 81, no 2 (1 avril 2006). http://dx.doi.org/10.4000/geocarrefour.1928.
Texte intégralThèses sur le sujet "Résonances de transmission parfaites"
Kiorpelidis, Ioannis-Markos. « Wave phenomena in one-dimensional space or time varying media ». Electronic Thesis or Diss., Le Mans, 2023. https://cyberdoc-int.univ-lemans.fr/Theses/2023/2023LEMA1032.pdf.
Texte intégralThe interaction of waves with media possessing spatial or/and temporal fluctuations leads tointeresting phenomenology. Within this framework, in the present thesis four wave phenomena arestudied: two occurring in spatially-varying media and two in time-varying media. We begin byexploring wave scattering by a finite spatially-periodic setup that is subject to perturbation. Ourfocus is on perfect transmission resonances (PTRs) and we develop a method for preserving themunder asymmetric perturbations. The performed analysis reveals a pairwise connection betweenPTRs of a spatially-periodic scattering setup with mirror symmetric cells. In the same contextof spatially varying media, we compute the localization length of the topological edge modes thatare supported in a mechanical mass-spring chain possessing random fluctuations of its stiffnessparameters. In the presence of strong chiral disorder the localization length diverges, implying atopological phase transition that is induced purely by disorder. As a next step we consider thecase where the couplings of the mechanical mass-spring chain vary with time in a deterministicway. Then this time-varying system can serve as a platform for transferring a topological edgemode. Going beyond the adiabatic limit, we design a protocol for the time-varying couplingsthat results in a fast and robust transfer and even more leads to amplification of the transferrededge mode. To shed light into the phenomenon of amplification in a time-varying platform, weexplore the propagation of a wave in a medium with time-periodic refractive index and with wavedynamics governed by the Mathieu equation. The wave exhibits transient amplification due to thenon normal nature of the propagator matrix and we provide numerical evidence that the globalamplifying features are provided merely by the monodromy matrix
Rivière, Charles. « Résonances pour des problèmes de transmission et d'élasticité linéaire ». Phd thesis, Université de Nantes, 2005. http://tel.archives-ouvertes.fr/tel-00096032.
Texte intégraltransmission et pour l'opérateur d'élasticité linéaire. Dans le cas du
problème de transmission, nous montrons l'existence de suites de résonances
qui s'approchent rapidement de l'axe réel et de densité maximale. Pour le
problème de Dirichlet dans l'élasticité linéaire, nous montrons l'absence
de résonances sous une cubique du plan complexe.
Riviere, Charles. « Résonances pour des problèmes de transmission et d'élasticité linéaire ». Nantes, 2005. http://www.theses.fr/2005NANT2146.
Texte intégralPortais, Mathilde. « Matrice de diffusion en interaction de configuration : résonances orbitalaires et électronique moléculaire quantique ». Phd thesis, Université Paul Sabatier - Toulouse III, 2013. http://tel.archives-ouvertes.fr/tel-00957409.
Texte intégralLarabi, Hocine. « Cristaux phononiques et métamatériaux acoustiques : applications aux domaines du guidage, filtrage et de l'isolation phonique ». Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10085/document.
Texte intégralThis thesis is devoted to the study of some new properties of phononic crystals and acoustics metamaterials. Most of simulations were carried out using F.D.T.D. method. A preliminary part was devoted to the study of the existence of gaps in a 2D phononic crystal made up of steel cylinders in water and in particular an original application to demultiplexing. In this work, we are more particularly interested by a phononic crystal with localized resonances displaying several low frequencies gaps well below the Bragg gap. The studied crystal consists of concentric cylinders having different elastic constants, immersed in a fluid matrix. It presents several zeros of transmission at low frequencies whose behaviors were studied as a function of the physical and geometrical parameters. We showed how to widen these zeros of transmission to obtain prohibited gaps. We calculated effective parameters around a resonance and showed the possibility of negative effective mass density. The last part of this work is devoted to the study of an original 3D structure, consisted of pillars deposited on a thin plate, which makes it possible to obtain the opening of a very low frequency gap compared to the Bragg gap. We studied the conditions of existence of the forbidden bands as well as guiding and filtering properties of this structure. Finally, we studied the transmission between two substrates across a periodic array of pillars. We highlighted an enhanced transmission, associated to a Fano resonance
Mallaroni, Bastien. « Relation entre la géométrie d'un résonateur de longueur finie et son rayonnement : Etude numérique et expérimentale de ses résonances complexes ». Aix-Marseille 1, 2010. http://www.theses.fr/2010AIX11122.
Texte intégralThe principal goal of this work was to develop a numerical method to study the coupling between internal and external fluid of a resonator, notably to study the link between the shape of a finite length resonator and his radiation. For this we study complex resonances, corresponding to the poles of the Green's function of system coupled with the external environment. The imaginary part of resonance frequencies is here directly related to losses due to radiation. We based our work on three main areas: an analytical study using a modal theory with the inclusion of non-planar modes, the development of a numerical method based on boundary finite elements and an experimental comparison of our theoretical results. The analytical modal theory has allowed us to study the radiation of finite length cylindrical pipe opening into an infinite screen, which is a reference case for further study. The numerical method, developed in a FORTRAN parallelized code, gave us the opportunity to study resonators with more complex geometries such as horns. To reduce computation time, we introduced an hybrid method mixing modal theory to describe the conservative part of system, that allows fast computation, and boundary element method, allowing a fine representation of complex geometries, to describe the radiating part. We have finished this work with a first experimental validation of results
Mallaroni, Bastien. « Relation entre la géométrie d'un résonateur de longueur finie et son rayonnement. Étude numérique et expérimentale de ses résonances complexes ». Phd thesis, Université de Provence - Aix-Marseille I, 2010. http://tel.archives-ouvertes.fr/tel-00686893.
Texte intégralSarrazin, Michael. « Etude de propriétés optiques liées à la transmission de cristaux photoniques bidimensionnels ». Phd thesis, Université de Franche-Comté, 2002. http://tel.archives-ouvertes.fr/tel-00002972.
Texte intégralWang, Wei. « Manipulation of Lamb waves with elastic metamaterials ». Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS414.
Texte intégralWe develop elastic pillared metamaterials to manipulate Lamb waves. Firstly, the negative properties associated with bending, compression and torsion resonances in two structures consisting of pillars on one side of a thin plate are examined. We describe in details two different mechanisms at the origin of doubly negative property. The potential of these structures for negative refraction of Lamb waves and acoustic cloaking is demonstrated numerically. Secondly, we present the topologically protected transport of Lamb waves by analogy with quantum spin and valley quantum Hall effects. By rearranging the previous structures into a honeycomb network, a single Dirac cone and a double Dirac cone are introduced. We discuss the appearance of topologically valley-protected edge states in an asymmetrical double-sided pillar structure. The unidirectional propagation of edge states on different domain walls is studied. In addition, we consider a symmetrical double-sided system allowing the separation of the symmetric and antisymmetric modes. Combined edge states protected topologically by pseudospin and pseudospin-valley degree of freedom are demonstrated. Third, we propose an approach to actively control the transmission of the antisymmetric Lamb wave propagating through an infinite line of pillars. Two different situations with bending and compression resonances respectively separated or superimposed are studied. External tensile force and pressure are applied to the pillars, which allows them to couple with the bending and compressive vibrations. The transmission is studied as a function of the amplitude and the relative phase of the external sources
Chapitres de livres sur le sujet "Résonances de transmission parfaites"
Corre, Cécile, et Catherine David. « Clinique des institutions ». Dans Clinique des institutions, 83–91. In Press, 2021. http://dx.doi.org/10.3917/pres.bitto.2021.01.0084.
Texte intégral