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Academic literature on the topic 'Modelisation par élément spectraux'
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Dissertations / Theses on the topic "Modelisation par élément spectraux"
El, khoury Christine. "Seismic ambient noise amplitude anomalies induced by an anticline structure : application to the context of gas reservoirs." Electronic Thesis or Diss., Université Paris sciences et lettres, 2022. http://www.theses.fr/2022UPSLM100.
Full textSpectral anomalies in the seismic ambient noise, defined as strong spectral amplification of the vertical component at frequencies of 1 to 5 Hertz, are commonly observed above gas reservoirs. If properly understood, these anomalies could have a potential for fluid reservoir exploration or monitoring. The nature of these anomalies was mainly explained by the geological structure more than the fluid reservoir itself, for purely elastic waves. Analysis on real datasets of ambient noise measurements shows that surface waves, mainly fundamental mode, are the main contributors to the anomaly. This work further explores how Rayleigh waves interact with an anticline structure, a typical geological trap for a hydrocarbon reservoir. Analysis of the spectral signature of an anticline structure is performed for different source configurations, to finally provide a relationship linking the anticline geometrical and elastic parameters to the induced anomaly for the case of the fundamental mode Rayleigh waves
LE, FOLL GWENAELLE. "Contribution a l'extraction du profil de vent par radar doppler : modelisation et traitement pour l'estimation des parametres spectraux." Paris 11, 1995. http://www.theses.fr/1995PA112445.
Full textEl, Rhabi Mohammed. "Analyse Numérique et discrétisation par éléments spectraux avec joints des équations tridimensionnelles de l'électromagnétisme." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2002. http://tel.archives-ouvertes.fr/tel-00002224.
Full textBensaid, Samir. "CONTRIBUTION A LA CARACTERISATION ET A LA MODELISATION ELECTROMAGNETIQUE ET THERMIQUE DES MATERIAUX COMPOSITES ANISOTROPES." Phd thesis, Université de Nantes, 2006. http://tel.archives-ouvertes.fr/tel-00424804.
Full textVincent, Patrick. "Modélisation aux éléments finis des marées océaniques : [thèse en partie soutenue sur un ensemble de travaux]." Grenoble 1, 1987. http://www.theses.fr/1987GRE10033.
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