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Réseaux de diffraction à multicouches diélectriques pour la compression d’impulsions petawatt par mosaïques de réseaux Technique d’amplification à dérive de fréquence Depuis 1985, le développement de sources laser ultra-intenses repose sur la technique d’amplification à dérive de fréquence [1] ou...
Etude des propriétés élastiques de la croûte Measuring the scattering mean free path of Rayleigh waves on a volcano from spatial phase decoherence In heterogeneous media, after a sufficient amount of time of propagation, waves enter the multiple scattering regime....
Télécharger le fichier original (Mémoire de fin d'études) Ondes de surface Dans la nature, les solides ne sont pas infinis et leurs frontières peuvent générer d’autres types d’ondes. Dans le cas simple d’une surface libre de contrainte au sommet d’un...
Télécharger le fichier original (Mémoire de fin d'études) Fish migration system Mekong fishes migrate longitudinally and laterally among critical habitats of the Mekong mainstream and its tributaries or between the floodplains and deeper areas of lakes or permanent water bodies....
Combinaison de la modélisation biophysique et de marquages isotopiques Study species This study is part of a larger program focusing on the population connectivity of the Humbug damselfish (Pomacentridae), Dascyllus aruanus, in the SWL of New Caledonia. Here, we therefore...
When a person watches a video he/she could easily distinguish between objects and realize what they are. Our brain could even keep tracking different objects in real time. Until today nobody has discovered how our brain works in this purpose...
Still-to-Video Face Recognition Systems In a still-to-video FR scenario, there is typically one or more still image(s) to enroll an individual to the system while a set of video frames is available for recognition. Given one or few reference still...
General principle of GNSS GNSS systems worldwide In GNSS system, three segments are necessarily correlated to finally obtain the desired coordinates. First there is the indispensable space segment in orbit, then the traditional components of the user segment on the...