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  • Open Access French
    Authors: 
    César, William;
    Publisher: HAL CCSD
    Country: France

    The goal of this thesis is the development of technological and numerical tools for the monitoring of indoor air quality. That comprises the design of miniaturized sensors capable of detecting a large number of pollutants, and the development of inverse models allowing ...

  • Open Access French
    Authors: 
    LEPRETRE , Emilie;
    Publisher: HAL CCSD
    Country: France

    After corrosion, fatigue phenomenon is the main cause of damage in old metallic structures. Fatigue cracks appear in stress concentration area subject to high stresses, and can lead to the ruin of the bridge. In old metallic structures, fatigue cracks mainly occur at th...

  • Open Access French
    Authors: 
    Gaële Lesteven;
    Publisher: HAL CCSD
    Country: France

    International audience; Cet article évalue l’impact de la congestion automobile sur la routine des ménages motorisés. En abaissant les vitesses, la congestion automobile modifie les temps de déplacements quotidiens : elle les allonge et/ou augmente leur variabilité. Un ...

  • Open Access French
    Authors: 
    Nguyen, Thi Thuy Linh;
    Publisher: HAL CCSD
    Country: France

    This thesis contributes to characterizing the behavior of a suspension of bubbles dispersed in a non-Newtonian fluid (yield stress fluid type).It consists of three parts. The first part is a literature review identifying the theoretical and experimental works for bubble...

  • Open Access French
    Authors: 
    MAUBEC, Nicolas;
    Publisher: HAL CCSD
    Country: France

    In order to re-use materials present in the vicinity of earthwork projects, lime treatment is a technique commonly used since it improves mechanical properties and workability of soils. However, this technique is ineffective with clay soils where expected improvements a...

  • Open Access French
    Authors: 
    BILLOT-GRASSET, Alice;
    Publisher: HAL CCSD
    Country: France

    Dans de nombreuses mégalopoles, la progression de la part modale du vélo, par ailleurs soutenue grâce à des politiques publiques, crée un intérêt grandissant pour la sécurité des cyclistes qui représente un véritable enjeu de santé publique. La plupart des études sur le...

  • Open Access French
    Authors: 
    Planes, Thomas;
    Country: France

    In highly heterogeneous media, waves don't propagate ballistically. They can interact several times with the heterogeneities of the medium and enter the multiple scattering regime. In this regime, classical imaging techniques, based on direct or singly scattered waves f...

  • Open Access French
    Authors: 
    Ducret, Raphaëlle; Durand, Bruno;
    Publisher: HAL CCSD
    Country: France

    International audience; L'essor continu du BtoC fait peser de sérieuses contraintes sur les livraisons urbaines, des livraisons majoritairement réalisées à domicile (LAD). Dans ce contexte, les solutions de livraison hors domicile (LHD) se présentent, de plus en plus, c...

  • Open Access French
    Authors: 
    Lavergne, Francis;
    Country: France

    Prestress losses due to creep of concrete is a matter of interest for long term operations of containment buildings. In the present study, the time-dependent strains of concretes are estimated starting from morphological details of the microstructure. X-ray tomography p...

  • Publication . Doctoral thesis . 2010
    Open Access French
    Authors: 
    VU, Thai Son;
    Publisher: HAL CCSD
    Country: France

    In this work, we aimed to predict the rheological properties of suspensions of particles in non-Newtonian fluids. We first studied experimentally the rheological behaviour of bidisperse suspensions of non colloidal particles and non-Brownian immersed in a yield stress f...