Publicaciones

Affichage de 3471 à 3480 sur 5526

COMM

On the study of human reliability in transportation systems of systems

Subeer Rangra, Walter Schön, Mohamed Sallak, Frédéric Vanderhaegen

Humans are and will remain one of the critical constituents of a technological system. The study of Human Factors is a broad domain with equally varying applications. Quantification thereof, with a Human Reliability Analysis (HRA) poses considerable challenges and advantages. In increasingly...

10th IEEE System of Systems Engineering Conference (SoSE 2015), May 2015, San Antonio, TX, United States. pp.208-213, ⟨10.1109/SYSOSE.2015.7151980⟩. ⟨hal-01266811⟩

COMM

Failure mechanisms and reliability of the Al-chip-metallization during power cycling

Camille Durand, Daniel Coutellier, Hakim Naceur, Markus Klingler

Cet article étudie les mécanismes de rupture et la fiabilité de la couche de métallisation d'une puce électronique d'un nouveau module de puissance, remplaçant les fils de connexion par un clip en cuivre. A la fois des tests de cycles actifs de puissance et des simulations...

CFM 2015 - 22ème Congrès Français de Mécanique, Aug 2015, Lyon, France. ⟨hal-03444889⟩

ART

Design of a device to induce swirling flow in pipes: A rational approach

François Beaubert, Halldor Pálsson, Sylvain Lalot, Isabelle Choquet, Hadrien Bauduin

In this study, a rational approach is proposed to design a device for inducing swirling flow in heat exchanger pipes, for improved efficiency in the laminar regime. First, 2D computational fluid dynamics results lead to select, among four profiles, the blade profile with the most favorable lift to...

Comptes Rendus. Mécanique, 2015, 343 (1), pp.1-12. ⟨10.1016/j.crme.2014.09.004⟩. ⟨hal-03452026⟩

COUV

Low Velocity Impact Behavior of Glass Fibre-Reinforced Polyamide

Jamel Mars, Mondher Wali, Rémi Delille, Fakhreddine Dammak

The low velocity impact behavior of composites made of polyamide (PA) as matrix and glass fibre as reinforcement has been investigated. The assessment of the impact behavior has driven the need to perform tensile tests to determine the elasto-plastic behavior of the composites. The specimens were...

Multiphysics Modelling and Simulation for Systems Design and Monitoring, 2, Springer International Publishing, pp.469-479, 2015, Applied Condition Monitoring, ⟨10.1007/978-3-319-14532-7_48⟩. ⟨hal-03451944⟩

COMM

Croyances volatiles pour l'adaptation collective de véhicules autonomes : application à une cellule de production flexible

Emmanuel Adam

En se basant sur la notion de stigmergie, nous proposons la notion de croyance volatile. En fait un coefficient de dégradation est appliqué non pas à la valeur de la phéromone, mais à la confiance accordée à la croyance. Chaque agent dégrade ainsi les confiances accordées à ses croyances. Lorsqu’...

23es Journées Francophones sur les Systèmes Multi-Agents (JFSMA'15), Jun 2015, Rennes, France. pp.219-220. ⟨hal-01163023⟩

COUV

Nonlinear Observer for Autonomous Switching Systems with Jumps

Jean-Pierre Barbot, Mohamed Djemai, Noureddine Manamanni

This work deals with nonlinear observer synthesis for a particular class of hybrid dynamic systems (HDS): autonomous switching systems with jumps. The jumps can result from the system’s dynamics or from the diffeomorphism, which makes it possible to lead the system to an observability canonical...

M. Djemai; M. Defoort. Hybrid Dynamical Systems, Springer, 2015. ⟨hal-03404000⟩

ART

Effects of robotic gait rehabilitation on biomechanical parameters in the chronic hemiplegic patients, Effets de la rééducation robotisée à la marche sur les paramètres biomécaniques de la marche chez des patients hémiplégiques chroniques

Laura Wallard, Gilles Dietrich, Yves Kerlirzin, Jonathan Bredin

Hemiplegia is a more or less complete loss of hemibody voluntary motricity following a brain injury, usually resulting in alterations of the locomotor system with persistent disorders of movement and posture. We were interested in studying the gait pattern called "stiff knee gait" with..., L’hémiplégie est une perte plus ou moins complète de la motricité volontaire d’un hémicorps suite à une lésion cérébrale, entraînant généralement des altérations de l’appareil locomoteur avec des troubles persistants du mouvement et de la posture. Nous nous sommes intéressés, pour cette étude, au...

Neurophysiologie Clinique = Clinical Neurophysiology, 2015, 45 (3), pp.215-219. ⟨10.1016/j.neucli.2015.03.002⟩. ⟨hal-03465478⟩

ART

Smoothed finite element method implemented in a resultant eight-node solid-shell element for geometrical linear analysis

Xavier J-G Elie-Dit-Cosaque, Augustin Gakwaya, Hakim Naceur

A smoothed finite element method formulation for the resultant eight-node solid-shell element is presented in this paper for geometrical linear analysis. The smoothing process is successfully performed on the element mid-surface to deal with the membrane and bending effects of the stiffness matrix...

Computational Mechanics, 2015, 55 (1), pp.105-126. ⟨10.1007/s00466-014-1085-2⟩. ⟨hal-01348306⟩

ART

Axisymmetric modeling of the thermal cooling, including radiation, of a circular glass disk

Norbert Siedow, Dominique Lochegnies, Fabien Béchet, Philippe Moreau, Hiroshi Wakatsuki, Nobuhiro Inoue

Achieving correct tempering in thin glass is very important to prevent undesired stress and breakage. Computer simulation can elucidate and control the tempering process. For semitransparent materials like glass, heat transfer by thermal radiation is substantial; for thick glass, it may dominate...

International Journal of Heat and Mass Transfer, 2015, 89, pp.414-424. ⟨10.1016/j.ijheatmasstransfer.2015.04.091⟩. ⟨hal-03276352⟩

ART

Development of CBCT-based prostate setup correction strategies and impact of rectal distension

Christine Boydev, Abdelmalik Taleb-Ahmed, Foued Derraz, Laurent Peyrodie, Jean-Philippe Thiran, David Pasquier

Background: Cone-beam computed tomography (CBCT) image-guided radiotherapy (IGRT) systems are widely used tools to verify and correct the target position before each fraction, allowing to maximize treatment accuracy and precision. In this study, we evaluate automatic three-dimensional intensity-...

Radiation Oncology, 2015, 10 (1), pp.83. ⟨10.1186/s13014-015-0386-8⟩. ⟨hal-01683881⟩