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International audience; Although predictive forward gait simulators have existed for a little while, only few sensitivity studies have been proposed. We present a study analysing precision, accuracy, stability and sensitivity of such simulator. We studied a gait simulator based on the trajectory mimicking method proposed by Lee et al. [1]. We assessed the effect of motion variation on the resulting gait simulation using the sensitivity analysis method proposed by Saltelli et al. [2]. Our method supports the use of this simulator for prediction.

National audience

International audience

International audience

International audience; Cette étude se situe dans le cadre d'un projet qui tente d'établir le lien entre asymétries phonétique et phonologique de la syllabe, plus spécifiquement le lien entre caractéristiques du geste mandibulaire et MOP, Maximum Onset Principle, principe phonologique empirique qui affecte les segments consonantiques à la position initiale de syllabe plutôt que finale. Plusieurs travaux antérieurs sur l'anglais américain ont montré l'existence d'asymétries au niveau des phases du cycle mandibulaire qui pourraient expliquer certaines tendances des structures syllabiques et notamment la structure canonique CV (plutôt que VC). Dans ce projet, une première étude sur le français a confirmé un patron d'asymétries mais inverse à celui trouvé pour l'anglais. Nous présentons les premiers résultats obtenus pour le vietnamien. Les résultats sont discutés dans deux cadres théoriques, Frame/Content Theory et Articulatory Phonology, le premier attribuant un rôle fondamental au geste mandibulaire dans la phonologie de la syllabe, le second ne lui concédant qu'un rôle secondaire.; CVC syllable and jaw cycle: an articulatory study of asymmetries. The case of Vietnamese. The present paper is part of a project that tries to establish the link between phonological and phonetic asymmetries in syllable structures and more specifically the relationship between characteristics of jaw cycle and the MOP, Maximum Onset Principle, an empirical principle that affects consonantal segments to onset position rather than to coda position. Several previous works on American English have shown evidence of asymmetries within the jaw cycle, which could explain some syllabic structure tendencies, whereas a previous study on French showed a reverse asymmetrical pattern of jaw oscillation. We present here preliminary results on Vietnamese that we discuss in two theoretical frameworks namely Frame/Content Theory and Articulatory Phonology: the first one gives a fundamental role to the jaw in the shape of speech production, whereas the latter assigns a secondary role to the jaw in syllable phonology.

AbstractThe steel vessels of pressurized water reactors are embrittled by neutron irradiation. It is well known that copper atoms play an important role in the embrittlement and that different Cu- containing defects such as Cu-rich clusters (sometimes called atmospheres), Cu precipitates and Cu-vacancy complexes have been identified experimentally. It is still difficult to link the formation of these defects to the primary damage resulting from the neutron inducing displacement cascades. Therefore, we investigate the evolution of the primary damage in FeCu alloys using kinetic Monte Carlo simulations based on a vacancy diffusion mechanism. The calculations rely on adapted, phenomenological, n-body potentials that satisfactorily reproduce properties of FeCu. At room temperature, experimentally identified defects such as Cu-vacancy complexes (one Cu atom bound to three or four vacancies) form in the course of our simulations. Furthermore, it appears that complex defects such as a Cu atom linked to two vacancies are very mobile and are responsible for the formation of small Cu clusters.

International audience

Rôle de l’isoforme courte de la déacétylase NAD+ dépendante Sirt 3 dans l’homéostasie du muscle squelettique. 28. Congrès AFH

International audience