129 research outputs found
ODTN: Open Disaggregated Transport Network. Discovery and Control of a Disaggregated Optical Network through Open Source Software and Open APIs
No full textONOS discovers and manages a topology made of Transponders and a dedicated OLS, using standard protocols (NETCONF/RESTCONF) and models (OpenConfig/TAPI). The demo is a joint collaboration, towards production deployment, between 3 operators and 2 equipment vendors
Structures of the borate complexes of d-allose, d-talose, and d-psicose in aqueous solution: An 11B- and 13C-n.m.r. study
No full textCongestion control mechanism using LSP differentiation for label-switched optical burst networks
No full text
Open and Mixed G-Networks with Triggers and Finite Capacity Queues.
No full textSTATISTICS;MATHEMATICS
An Optical Uni Architecture For The Giga Project Testbed Network
No full textThe main interests of the GIGA Project are the deployment of Optical Network Technology, Network Services and Applications, Experimental Telecommunication Services and Scientific Applications. In the context of this Project, our research group has been working in the design of a IP/WDM Control Plane to integrate the IP/MPLS Client Network with the Optical Transport Network (WDM), according to the GMPLS and ASON specifications. We propose a UNI (User Network Interface) architecture providing an independent signaling protocol to integrate the Client and the Optical Transport Networks. The proposed UNI architecture maintains unchanged the client and transport networks signaling semantics for the GIGA testbed network. The paper describes how the designed architecture supports the independence of the signaling protocol and presents the prototype implemented to validate the architecture. © 2006 IEEE.285290Agrawal, G.P., (2002) Fiber-Optic Communication Systems, , 3rd Edition. John Wiley, JuneMannie, E., (2004) Generalized Multi-Protocol Label Switching (GMPLS) Architecture, , RFC 3945, OctoberBerger, L., (2003) Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description, , RFC 3471, JanuaryKatz, D., Kompella, K., Yeung, D., (2003) Traffic Engineering (TE) Extensions to OSPF Version 2, , RFC 3630, SeptemberLang, J., (2005) Link Management Protocol (LMP), , RFC 4204, OctoberITU-T: Architecture for the Automatically Switched Optical Network (ASON), G.8080/Y.1304, 2001OIF User Network Interface (UNI) 1.0 Signaling Specification, Release 2: Common Part, February 2004Swallow, G., Drake, J., Ishimatsu, H., Rekhter, Y., (2005) Generalized Multi-Protocol Label Switching (GMPLS) User-Network Interface (UNI): Resource ReSerVation Protocol-Traffic Engineering (RSPV-TE) Support for the Overlay Model, , RFC 4208, OctoberBraden, R., Zhang, L., Berson, S., Herzog, S., Jamin, S., (1997) Resource ReSerVation Protocol (RSVP) - Version 1 Functional Specification, , RFC 2205, SeptemberAwduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V., Swallow, G., (2001) RSVP-TE: Extensions to RSVP for LSP Tunnels, , RFC 3209, DecemberBerger, L., (2003) Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource ReSerVation Protocol-Traffic Engineering (RSPV-TE) Extensions, , RFC 3473, JanuaryPapadimitriou, D., Verchere, D., GMPLS User-Network Interface in Support of End-to-End Rerouting (2005) IEEE Communication Magazine, pp. 35-43. , JulyPapadimitriou, D., Rousseau, B., Krber, W., Brockmann, S., Verchere, D., The Private User Network Interface - a GMPLS-compliant signaling interface for overlay-based multilayer networks (2004) Journal of Optical Networking, pp. 119-132. , MarchMargaria, C., Juillot, G., Autenrieth, A., Performance Evaluation of a GMPLS Prototype Broadband Communications and Distributed Systems, pp. 211-222Maesschalck, S.D., Pickavet, M., Colle, D., Demeester, P., Multilayer Traffic Grooming in networks with an IP/MPLS Layer on top of a meshed Optical Layer (2003) GLOBECOM, pp. 2750-275
Demonstration of a SDN-based Spectrum Monitoring of Elastic Optical Networks
No full textWe demonstrate optical channel monitoring capabilities executed as SDN applications. To guarantee Quality of Transmission, diagnostic is performed by dynamically selecting the list of optical parameters to be monitored and by adjusting their polling rates
Le régime low-carb , raison ou déraison, en complément du traitement des patients diabétiques de type 2
No full textLes patients atteints de diabète de type 2 sont généralement en surpoids ou obèses, des règles hygiéno-diététiques strictes sont donc indispensables pour accompagner le traitement afin de perdre du poids. C'est dans ce but que le régime low-carb est apparu. Sa particularité est que l'apport en glucides est très faible ce qui provoque une perte de poids très rapide. Cependant, ces observations sont obtenues à partir d'études de courte durée et aucune étude à long terme n'a permis de les confirmer. Ce régime se révèle très vite monotone et induit l'effet yo-yo secondaire à la perte de poids rapide. Apparemment ce régime améliore à court terme les paramètres lipidiques en réduisant le risque de formation de la plaque d athérome. Cependant, la consommation de viandes et de charcuteries étant permise à volonté, il y a un risque d excès de matières grasses dans l alimentation, ce qui peut, à long terme, occasionner des troubles métaboliques lipidiques favorisant le développement des maladies cardiovasculaires.NANTES-BU Médecine pharmacie (441092101) / SudocSudocFranceF
Membranes liquides supportées contenant du cholate de méthyle (Mécanisme pour le transport facilité de monosaccharides)
No full textDes membranes liquides supportées ont été préparées en vue de séparer des mélanges de sucres par transport facilité avec un transporteur naturel, le cholate de méthyle, dissous dans un solvant organique qui imprègne un support en polymère microporeux. Le cyclohexane offre le meilleur compromis entre perméabilité et toxicité. Le transport des sucres suit une loi cinétique de saturation qui établit la formation d'un complexe sucre-transporteur dont la migration est l'étape déterminante. Un mécanisme de saut du sucre entre sites mobiles de transporteur est le plus vraisemblable. On a mesuré la constante de stabilité K et le coefficient apparent de diffusion D* des complexes. Les variations de K avec la structure des sucres prouvent la reconnaissance moléculaire par le transporteur et montrent que le site de complexation est HO-2,3,6 pour le glucose et HO-1,2,6 pour le galactose. Quelques mélanges binaires de sucres ont été séparés avec une efficacité modérée.Supported liquid membranes were prepared for the separation of mixtures of sugars by facilitated transport with a natural carrier, methyl cholate, dissolved in an organic solvent impregnating a microporous polymeric support. Cyclohexane presents the best compromise between permeability and toxicity. The transport of sugars obeys a saturation law, showing the fast formation of a sugar-carrier complex that migrates in the rate-determining step. A jumping mechanism between mobile sites is likely. The stability constant K and the apparent diffusion coefficient D* of the complexes were determined. The variations of K with the structure of sugars confirm molecular recognition by the carrier and show that the complexation sites are HO-2,3,6 for glucose and HO-1,2,6 for galactose. Some binary mixtures of sugars were separated with moderate efficiency.ROUEN-BU Sciences (764512102) / SudocSudocFranceF
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