Search results for "MOBILITY"
showing 10 items of 922 documents
IP-Based Mobility Management and Handover Latency Measurement in heterogeneous environments
2017
International audience; One serious concern in the ubiquitous networks is the seamless vertical handover management between different wireless technologies. To meet this challenge, many standardization organizations proposed different protocols at different layers of the protocol stack. The Internet Engineering Task Force (IETF) has different groups working on mobility at IP level in order to enhance mobile IPv4 and mobile IPv6 with different variants: HMIPv6 (Hierarchical Mobile IPv6), FMIPv6 (Fast Mobile IPv6) and PMIPv6 (Proxy Mobile IPv6) for seamless handover. Moreover, the IEEE 802.21 standard provides another framework for seamless handover. The 3GPP standard provides the Access Netw…
Linking traffic and noise models to explore spatio-temporal distribution of noise pollution: an example in Besançon (France)
2012
International audience; Road transportation is one of the major environmental noise sources in urban areas, which is characterized by an important temporal and spatial variation. Therefore, linking mobility and traffic model with noise model each representing spatial and temporal dimensions is a great interest. An integrated and original approach was developed to explore noise pollution in urban areas with a spatiotemporal and prospective point of view. An agent-based Land-Use and Transport Integrated (LUTI) model - MobiSim- was used to assess traffic modulation by simulating hourly flows and mobility. Individual choices of agents (representing the city's inhabitants) were transformed to fl…
The role of VOC oxidation products in continental new particle formation
2008
Abstract. Aerosol physical and chemical properties and trace gas concentrations were measured during the QUEST field campaign in March–April, 2003, in Hyytiälä, Finland. Our aim was to understand the role of oxidation products of VOC's such as mono- and sesquiterpenes in atmospheric nucleation events. Particle chemical compositions were measured using the Aerodyne Aerosol Mass Spectrometer, and chemical compositions of aerosol samples collected with low-pressure impactors and a high volume sampler were analysed using a number of techniques. The results indicate that during and after new particle formation, all particles larger than 50 nm in diameter contained similar organic substances that…
Gangliosides characterization by high resolution mass spectrometry and ion mobility
2016
Gangliosides (GG) are sialic acid-containing glycosphingolipids particularly abundant in the nervous system. They exhibit a wide variety of structures depending on both the oligosaccharide chain and the ceramide moiety. About 200 GG species have been described so far, but their diversity and biological roles are far from being completely elucidated. An efficient method of identification and quantification is crucial to apprehend this huge heterogeneity. In this study, we focused on the characterization of the ceramide portion of GG, identifying the long chain base (LCB) and the fatty acid. A commercial standard of GD3 was analysed with both a Thermo LTQ-Orbitrap XLTM and a Waters Synapt G2-…
Modalités fonctionnelles et évolutives des parasitoses développées par les crabes Pinnotheridae aux dépens des échinides fouisseurs
2010
Ce travail s’est intéressé aux liens existant entre la stratégie d’exploitation développée par un crustacé ectoparasite et son comportement reproductif. Le crabe Pinnotheridae Dissodactylusprimitivus exploite deux espèces Spatangidae vivant dans la Mer des Caraïbes, Meomaventricosa et Plagiobrissus grandis. Des approches comportementales, démographiques etgénétiques ont été adoptées afin de mettre en lumière le fonctionnement et la biologie de cettesymbiose. Par son comportement alimentaire, le crabe occasionne des lésions tégumentairessur ses hôtes. Celles-ci affectent la fitness de M. ventricosa, au travers de son développementgonadique. Dissodactylus primitivus exploite ses deux espèces …
Autoroutes et dynamique du tourisme
2006
The widening of the motorway network in France, during the nineties, gives the opportunity to analyze the relationships between accessibility and tourism. The A 39 skirts the foothills of the Jura and improve its accessibility although it does not penetrate into the mountains. From this example, we wished to evaluate the impact of such an infrastructure on the tourism activity in the Jura. The adopted method involves following the development of tourism starting from multiple sources provided by national statistics, traffic surveys carried out before and after the opening of the A 39, and the interviews of the people in charge for tourism in the Jura. The interest of these investigations is…
Moving around the Philippines : challenges and dynamics of mobility in a developing country
2012
International audience
International mobility for young people with fewer opportunities: a project evaluation
2012
National audience
Breaking car-use habits to enable sustainable mobility. Using “moments of opportunity” in the life-cycle as a mobility management instrument
2015
International audience
De l'intelligence territoriale. Théorie, posture, hypothèses, définitions
2006
In this article, our goal is to present characteristics of what we call territorial intelligence as a theory, attitude, and ascending step of collective intelligence based on citizen approach of territorial valorization. And the capacity (or the incapacity) of the actors Co-to write the scenario of their future within a widened framework, the U.E, in connection with local dimension. Vision of the territory lived and the urban context is upset. Any kind of local actors, from citizens to business men through political, are facing to the jamming of territories and space references, which results from mobility, immateriality. Invisible and virtual space takes an increasing weight and, on the sa…