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Affichage de 881 à 890 sur 977

  • Article dans une revue

Analysis of train driver protection in rail collisions: Part II. Design of a desk with improved crashworthiness performance

Audrey Hault-Dubrulle, Frédéric Robache, Pascal Drazetic, Hervé Morvan, Christophe Landsheere, Olivier Luc

This two-part paper described the results of the research programme PROCAB (French acronym for PROtection CABine) for train driver protection in rail collisions. In the part I, virtual and physical testing were developed to predict the train driver dynamics and related injuries due to secondary…

International Journal of Crashworthiness, 2013, 18 (2), pp.194-205. ⟨10.1080/13588265.2013.769485⟩. ⟨hal-03470669⟩

  • Article dans une revue

Three-stage hybrid-flowshop model for cross-docking

Adrien Bellanger, Said Hanafi, Christophe Wilbaut

This paper deals with the optimization of a cross-docking system. It is modeled as a three-stage hybrid flowshop, in which shipments and orders are represented as batches. The first stage corresponds to the receiving docks, the second stage corresponds to the sorting stations, and the third stage…

Computers and Operations Research, 2013, 40 (4), pp.1109-1121. ⟨10.1016/j.cor.2012.11.009⟩. ⟨hal-03472230⟩

  • Article dans une revue

On actions and strict actions in homological categories

Manfred Hartl, Bruno Loiseau

Let $G$ be an object of a finitely cocomplete homological category $\mathbb C$. We study actions of $G$ on objects $A$ of $\mathbb C$ (defined by Bourn and Janelidze as being algebras over a certain monad $\mathbb T_G$), with two objectives: investigating to which extent actions can be described in…

Theory and Applications of Categories, 2013, 27 (15), pp.347-392. ⟨hal-03149616⟩

  • Article dans une revue

Using segmentation to support the learning from animated soccer scenes: An effect of prior knowledge

Aïmen Khacharem, Ingrid A.E. Spanjers, Bachir Zoudji, Slava Kalyuga, Hubert Ripoll

Objectives We used a cognitive load perspective to investigate the effects of levels of learner expertise and different forms of segmentation in learning from animated soccer scenes. Method Expert and novice players (N = 48) completed a recall reconstruction-test and rated their invested mental…

Psychology of Sport and Exercise, 2013, 14 (2), pp.154-160. ⟨10.1016/j.psychsport.2012.10.006⟩. ⟨hal-04502410⟩

  • Article dans une revue

Numerical simulation of the transient aerodynamic phenomena induced by passing manoeuvres

David Uystepruyst, Siniša Krajnović

Several three-dimensional Unsteady Reynolds-Averaged Navier-Stokes (URANS) simulations of the passing generic vehicles (Ahmed bodies) are presented. The relative motion of vehicles was obtained using a combination of deforming and sliding computational grids. Two different vehicle bodies were…

Journal of Wind Engineering and Industrial Aerodynamics, 2013, 144, pp.62-71. ⟨10.1016/j.jweia.2012.12.018⟩. ⟨hal-03545616⟩

  • Article dans une revue

The ability of precision hard turning to increase rolling contact fatigue life

Nabil Jouini, Philippe Revel, P.-E. Mazeran, Maxence Bigerelle

In this paper, precision hard turning is proposed for the finishing of the AISI 52100 bearing components to improve rolling contact fatigue life. This finishing process induces a homogenous microstructure at surface and subsurface layers. Fatigue life tests performed on a twin-disk machine show…

Tribology International, 2013, 59, pp.141-146. ⟨10.1016/j.triboint.2012.07.010⟩. ⟨hal-03616155⟩

  • Article dans une revue

3D transient model of vapour chamber: effect of nanofluids on its performance

Hamdy Hassan, Souad Harmand

This paper presents three-dimensional transient model for vapour chamber (flat heat pipe) and the effect of nanofluids on its performance. The vapour chamber consists of two copper plates, two copper/water wick regions and a vapour region sandwiched between the two wick regions. The numerical model…

Applied Thermal Engineering, 2013, 51 (1-2), pp.1191-1201. ⟨10.1016/j.applthermaleng.2012.10.047⟩. ⟨hal-03470490⟩

  • Communication dans un congrès

Minimisation des pénalités d’avances et de retards sur une machine

Rachid Benmansour, Said Hanafi, Rita Macedo, Mustapha Ratli, Christophe Wilbaut

Les problèmes d’ordonnancement sont très étudiés par la communauté de la recherche opérationnelle en raison de leur forte présence dans l’industrie. Le concept du juste‐à‐temps avait comme motivation principale l’élimination des gaspillages à tous les niveaux; l’importance de ce concept a conduit à…

ROADEF 2013 14ème conférence de la Société Française de Recherche Opérationnelle et d'Aide à la Décision, Feb 2013, Troyes, France. ⟨hal-03472866⟩

  • Communication dans un congrès

Un problème de strip-packing stochastique

François Clautiaux, Said Hanafi, Ya Liu, Christophe Wilbaut

Dans ce résumé nous nous intéressons au problème de strip‐packing en deux dimensions et à deux étages, dans lequel il existe une incertitude (ou erreur) sur la taille des articles. Nous proposons plusieurs modélisations de ce problème, ainsi que des heuristiques constructives et d'amélioration…

ROADEF 2013 - 14ème conférence de la Société Française de Recherche Opérationnelle et d'Aide à la Décision, Feb 2013, Troyes, France. ⟨hal-03472888⟩

  • Article dans une revue

Identification of Johnson-Cook's Viscoplastic Model Parameters Using the Virtual Fields Method: Application to Titanium Alloy Ti6Al4V

Delphine Notta-Cuvier, Bertrand Langrand, Eric Markiewicz, Franck Lauro, Gérald Portemont

The identification of viscoplastic material parameters is addressed using a new powerful method: the virtual fields method (VFM). Contrary to classical procedures that are statically determined, the VFM is applied to heterogeneous mechanical fields. Without any hypotheses of homogeneity required,…

Strain, 2013, 49 (1), pp.22-45. ⟨10.1111/str.12010⟩. ⟨hal-03624231⟩