La caractérisation statistique du «fouillis de mer » est un problème important en télédétection radar microondes.Elle repose en général sur des modèles purement empiriques qui ne sont pas directement interprétables en termes d’état de mer et ne peuvent pas se prêter à une procédure d’inversion. Pour modéliser la distribution statistique de l’intens...
Better management of water consumption and irrigation schedule in irrigated agriculture is essential in order to save water resources, especially at regional scales and under changing climatic conditions. In the context of water management, the aim of this study is to monitor irrigation activities by detecting the irrigation episodes at plot scale ...
L’imagerie radar est utilisée depuis plus de 40 ans pour l’observation de la Terre. Elle permet l’acquisition de données à haute résolution spatiale, sur l’ensemble du globe, de jour comme de nuit et quasi indépendamment des conditions atmosphériques et météorologiques. Même si la réponse radar des surfaces océaniques est en général bien caractéris...
Published in Polymers
Commercially available UV curable restorative materials are composed of inorganic filler hydroxyapatite, multifunctional methacrylate, photoinitiator and alkoxylated acrylate. Especially, the application of alkoxylated monomers with different alkoxylation grade allows the reduction of polymerization shrinkage which plays the major role by applicati...
Published in Animals : an open access journal from MDPI
The aim of this study was to investigate the molecular mechanisms leading to the identification of pathogens by congenital immune receptors in foals up to 60 days of age. The study was conducted on 16 foal Polish Pony Horses (Polish Konik) divided into two study groups: control (n = 9) and experimental (n = 7). Foals from the experimental group rec...
Le lidar est un instrument de télédétection active similaire au radar opérant dans la partie optique du spectre électromagnétique. Le principe est d’illuminer un milieu diffusant, soit solide (ex. végétation, peinture) soit dilué (ex. atmosphère, panache de fumée), et d’en collecter la lumière rétrodiffusée. Dans notre étude, deux processus d’inter...
Water Resources in the Mediterranean Region summarizes and collates scientific developments around water resources in the mediterranean socio-economic environment through a multidisciplinary framework synthesizing hydrology, hydrogeology, climate, bioclimatology, economics, and geography. As such, it provides essential information for any reader lo...
Aerial or satellite imagery is a great source for land surface analysis, which might yield land use maps or elevation models. In this investigation, we present a neural network framework for learning semantics and local height together. We show how this joint multi-task learning benefits to each task on the large dataset of the 2018 Data Fusion Con...
International audience
ONERA is one of the leading organizations in experimental research on aeronautic topics. Works on Airborne Radar began forty years ago with the first airborne demonstrator named RAMSES. At the end of the aircraft's life (Transall C160), ONERA invested in the transfer of sensors to a Falcon 20 jet. This new platform, called SETHI, participated to it...
