Search results for "Transfert"
showing 10 items of 84 documents
La conférence du Columa 2013 racontée par des étudiants AgroSup-Dijon
2014
Document accessible depuis la notice de ProdInra : https://prodinra.inra.fr/?locale=en#!ConsultNotice:306111; La 22e conférence du Columa de l’AFPP, tenue à Dijon du 11 au 13 décembre 2013, a été suivie par des étudiants d’AgroSup-Dijon. Ils rendent compte ici de ce qu’ils en ont retenu. Ils analysent particulièrement les sessions : – « Nuisibilité » des adventices (indirecte, ex. : favoriser l’ergot, et directe). – « Cultures méditerranéennes et tropicales » (différences Dom-Tom/autres pays, techniques émergentes). – « Résistance » (extension, mécanismes, facteurs de risque). – « Transfert aux milieux » (facteurs de risque de pollution des eaux, suivis et modélisation pour les prévoir). – …
Synthesis and study of new precursors for bimodal optic/PET or optic/SPECT imaging
2014
This thesis was performed at the Institut de Chimie Moléculaire de d’Université de Bourgogne (France) and in the Département de chimie de l’Université de Sherbrooke (Québec). The aim of this work was to design new BODIPY derivatives in order to obtain optimal properties for in vivo bimodal optical/PET or SPECT imaging. The modifications concern the hydrosolubilisation of these organic dyes, as well as the shifting of the absorption and emission bands toward the therapeutic window, where the light is less attenuated by biological tissues. Solutions allowing the bioconjugation of BODIPY on a bombesin derivative, a peptide which targets receptors surexpressed in tumor cells, were also investig…
Collecte des données Véhicule/Environnement et remontée avec réseau Cellulaire et réseau Véhiculaire
2019
Vertical handover is one of the key technologies that will facilitate the connected and autonomous vehicles deployment. Today, the emergence of Vehicular Ad hoc Networks (VANETs): Vehicle-to-Vehicle (V2V) communications, Vehicle-to-Infrastructure (V2I) and Vehicle-to-Everything (V2X) has enabled new applications such as Cooperative Intelligent Transport Systems (C-ITS), real-time applications (for example, autonomous driving), road traffic management applications and comfort applications. However, these networks are characterized by a high level of mobility and dynamic change in the topology, which generates scattered networks and requires handover mechanisms for maintaining ongoing session…
Il transfert di Curial
2018
Resum: I risvolti sovranazionali riscontrati nei tre protagonisti dei romanzi del Quattrocento catalano (Jacob Xalabín, Curial e Tirant) consentono di procedere a un’analisi del Curial e Güelfa che ne sottolinea l’identità multipla e l’apertura culturale del processo di formazione del protagonista, nella sua ascesa economica e sociale. L’evoluzione del protagonista, grazie a un meccanismo psicologico, oggi riconosciuto come tale, consente il lieto fine del romanzo, diversamente da quanto avviene negli altri due, dove i protagonisti, Jacob e Tirant, rimangono sempre gli stessi. Grazie allo spostamento, al transfert, Curial non rimuove quello che lo minaccia, ma riesce a superarlo, se riguard…
Méthodes géometriques en mécanique spatiale et aspects numériques
2005
We present in this thesis two research projectson the optimal control of the space vehicles.In the first, we have dealt with the orbit transferproblem. We study the minimum time control of a satellite that we want to reach a geostationary orbit. Our contribution is of two kinds. Geometric, first, since we study the controllability of the system together with the geometry of the transfer (structure of the command) by means of geometric control without state constraint tools (minimum principle). Then we present shootingalgorithm and homotopy method. These approaches allow the numerical resolution of problems with strong or low thrust satellites.The second project concerns to the calculation o…
Energy minimization of single input orbit transfer by averaging and continuation
2006
AbstractThis article deals with the transfer between Keplerian coplanar orbits using low propulsion. We focus on the energy minimization problem and compute the averaged system, proving integrability and relating the corresponding trajectories to a three-dimensional Riemannian problem that is analyzed in details. The geodesics provide approximations of the extremals of the energy minimization problem and can be used in order to evaluate the optimal trajectories of the time optimal and the minimization of the consumption problems with continuation methods. In particular, minimizing trajectories for transfer towards the geostationary orbit can be approximated in suitable coordinates by straig…
On the optimal control of the circular restricted three body problem
2011
The context of this work is space mechanics. More precisely, we aim at computing low thrust transfers in the Earth-Moon system modeled by the circular restricted three-body problem. The goal is to calculate the optimal steering of the spacecraft engine with respect to two optimization criteria: Final time and fuel consumption. The contributions of this thesis are of two kinds. Geometric, first, as we study the controllability of the system together with the geometry of the transfers (structure of the command) by means of geometric control tools. Numerical, then, different homotopic methods being developed. A two-three body continuation is used to compute minimum time trajectories, and then …
The political aspirations of the press of the Germans evicted from Silesia : as seen in the case of the Grafschafter Bote
2012
The integration process was very difficult for the millions of Germans evicted from the eastern territories at the end of WWII. The numerous newspapers that they published in FRG testify to their unique identity. This sector of the press reflects a large social group. One can find there the integration problems as well as the political claims of the evicted Germans. The Grafschafter Bote is a newspaper aimed at the Germans who were evicted from the County of Glatz (pol. Ziemia Kłodzka) in Silesia. It is an independent newspaper representing the most important associations and it has been published continually since 1950. The study of its content allows a better understanding of the evicted …
Musique, Pouvoirs, Politiques
2016
International audience; Musique, pouvoirs et politiques ont toujours eu un lien étroit. Utilisée comme instrument de propagande, au cœur des formes d’exposition symbolique du pouvoir ; liée aux pouvoirs publics par le jeu des censures, des systèmes d’enseignement, des subventions et des commandes d’État, par la médiation des institutions culturelles, la musique est aussi – et c’est surtout le cas des musiques dites populaires des xxe et xxie siècles – liée à d’autres pouvoirs : celui des médias qui la diffusent – presse, radio, télévision, etc. – ou celui de l’industrie du disque, qui la produit. Véhicule d’idée permettant d’exprimer son opposition au pouvoir ou son opposition à la société,…
Study of mechanical properties and mass transfer of agglomerated cork stoppers for sparkling wine conservation.
2019
The agglomerated cork stopper plays a key role in the preservation of sparkling wines because the gas exchanges (CO2 and O2) between the wine and the external environment depend on the stopper. The objective of this work is to determine the mechanical and barrier properties of agglomerated cork stoppers in order to identify the formulation parameters that can impact these properties, and highlight several critical points, which must be controlled during the process.The characterization of the agglomerated cork structure has revealed a large intergranular porosity, which is greatly reduced when smaller cork granules are used and when the cork is compressed in the bottleneck.The study of the …