Search results for "Fusion"

showing 3 items of 4513 documents

Extraction d'un graphe de navigabilité à partir d'un nuage de points 3D enrichis

2017

International audience; Ce travail se place dans le cadre général du projet ANR pLaTINUM lié à la navigation autonome et plus parti-culièrement à la génération de cartes pour la navigation basée perception. Il consiste à développer une nouvelle méthode pour résumer une carte 3D (un nuage dense de points 3D) et extraire un graphe de navigabilité facilitant l'utilisation de cette carte par des systèmes de navigation à ressources matérielles limitées (smart-phones, voitures, robots.. .). Cette méthode vise à ex-traire les régions les plus saillantes de l'environnement étudié afin de construire une carte récapitulative. Ce processus de résumé de carte basé sur la vision est appliqué d'une façon…

vision[INFO.INFO-CV] Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]ToneNavigabilitéMapping[INFO.INFO-RB] Computer Science [cs]/Robotics [cs.RO][ INFO.INFO-RB ] Computer Science [cs]/Robotics [cs.RO]Exposure Fusion[INFO.INFO-RB]Computer Science [cs]/Robotics [cs.RO][INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]nuage 3DperceptionRetinex
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Interplay between the Belousov-Zhabotinsky reaction-diffusion system and biomimetic matrices

2007

Abstract Interactions between reaction–diffusion systems and restricted host environments are a subject of widespread interest. In this work the behaviour of the Belousov–Zhabotinsky reaction was investigated in lamellar phases formed by phospholipid bilayers with relevance for biological systems. The influence of the reactive medium on the structure of the lipid matrix and, in turn, the influence of the matrix on the dynamical evolution of chemical patterns, were studied by small angle scattering.

{PATTERN}Work (thermodynamics)Molecular \& ChemicalChemistrySmall-angle X-ray scatteringDiffusionPhysicsGeneral Physics and AstronomyChemistry; Physical; {LIPID-BILAYERS}; {PATTERN}; Physics; Atomic; Molecular \& Chemical; {WAVES}AtomicMatrix (mathematics)ChemistryBelousov–Zhabotinsky reactionChemical physics{LIPID-BILAYERS}Physical{WAVES}Physical chemistryLamellar structurePhysical and Theoretical ChemistrySmall-angle scatteringLipid bilayer
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α-Conotoxins EpI and AuIB switch subtype selectivity and activity in native versus recombinant nicotinic acetylcholine receptors

2003

The Xenopus laevis oocyte expression system was used to determine the activities of alpha-conotoxins EpI and the ribbon isomer of AuIB, on defined nicotinic acetylcholine receptors (nAChRs). In contrast to previous findings on intracardiac ganglion neurones, alpha-EpI showed no significant activity on oocyte-expressed alpha3beta4 and alpha3beta2 nAChRs but blocked the alpha7 nAChR with an IC50 value of 30 nM. A similar IC50 value (103 nM) was obtained on the alpha7/5HT3 chimeric receptor stably expressed in mammalian cells. Ribbon AuIB maintained its selectivity on oocyte-expressed alpha3beta4 receptors but unlike in native cells, where it was 10-fold more potent than native alpha-AuIB, had…

α7 nicotinic acetylcholine receptorα-Conotoxin AuIBRecombinant Fusion ProteinsBiophysicsXenopusNicotinic AntagonistsReceptors NicotinicPharmacologyTransfectionBiochemistrycomplex mixturesSubstrate SpecificityInhibitory Concentration 50Xenopus laevisStructural BiologyGeneticsmedicineAnimalsConotoxinNicotinic AntagonistReceptorMolecular BiologyAcetylcholine receptorbiologyα-Conotoxin EpICell Biologybiology.organism_classificationRatsCell biologyProtein SubunitsNicotinic acetylcholine receptorNicotinic agonistnervous systemIntracardiac gangliaOocytessense organsReceptors Serotonin 5-HT3ConotoxinsAcetylcholineXenopus laevis oocytemedicine.drugFEBS Letters
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