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Affichage de 1491 à 1500 sur 1985

Article dans une revue

An experimental analysis and modeling of the work-softening transient due to dynamic recrystallization

Eli Saúl Puchi-Cabrera, M.H. Staia, Jean-Dominique Guerin, Jacky Lesage, Mirentxu Dubar, Didier Chicot

The flow softening brought about by dynamic recrystallization (DRX) during the plastic deformation of metals and alloys under hot-working conditions is of a great practical significance for the computation of the loads, torques and power consumption required in industrial hot forming operations.…

International Journal of Plasticity, 2014, 54, pp.113-131. ⟨10.1016/j.ijplas.2013.08.011⟩. ⟨hal-00937039⟩

Article dans une revue

Adaptation de l'ergonomie prospective aux systèmes à longue durée de vie

Jean-René Ruault, Emmanuel Gardinetti, Christophe Kolski, Frédéric Vanderhaegen

L’ergonomie prospective dont l’objectif est d’anticiper les besoins et activités des humains dans le but de créer de nouveaux artefacts, complète les concepts, méthodes et outils de l’ergonomie corrective et de l’ergonomie préventive pour répondre aux enjeux actuels des artefacts innovants et des…

Le travail humain, 2014, 77 (3), pp.257-280. ⟨10.3917/th.773.0257⟩. ⟨hal-03280629⟩

Article dans une revue

Influence of thermal radiation and heat generation/absorption on MHD heat transfer flow of a micropolar fluid past a wedge considering hall and ion slip currents

Ziya Uddin, Manoj Kumar, Souad Harmand

In this paper a numerical model is developed to examine the effect of thermal radiation on magnetohydrodynamic heat transfer flow of a micropolar fluid past a non-conducting wedge in presence of heat source/sink. In the model it is assumed that the fluid is viscous, incompressible and electrically…

Thermal Science, 2014, 18 (suppl.2), pp.489-502. ⟨10.2298/TSCI110712085U⟩. ⟨hal-03663770⟩

Article dans une revue

Active modes and switching instants identification for linear switched systems based on Discrete Particle Swarm Optimization

Sahbi Boubaker, Mohamed Djemai, Noureddine Manamanni, Faouzi M'Sahli

n this paper, a methodology for identifying switching sequences and switching instants of switched linear systems (SLS) is derived. The identification problem of a SLS is a challenging and non-trivial problem. In fact, it involves interaction between binary, discrete and real-valued variables. A…

Applied Soft Computing, 2014, 14 (Part C), pp.482-488. ⟨10.1016/j.asoc.2013.09.009⟩. ⟨hal-03649047⟩

Article dans une revue

How to Select the Most Relevant 3D Roughness Parameters of a Surface

Raphaël Deltombe, Krzysztof Kubiak, Maxence Bigerelle

In order to conduct a comprehensive roughness analysis, around sixty 3D roughness parameters are created to describe most of the surface morphology with regard to specific functions, properties or applications. In this paper, a multiscale surface topography decomposition method is proposed with…

Scanning, 2014, 36 (1), pp.150-160. ⟨10.1002/sca.21113⟩. ⟨hal-03627416⟩

Article dans une revue

Higher-Order Sliding Mode Observer for Speed and Position Estimation in PMSM

Suneel Kumar Kommuri, Kalyana Chakravarthy Veluvolu, Michael Defoort, Yeng Chai Soh

This paper presents a speed and position estimation method for the permanent magnet synchronous motor (PMSM) based on higher-order sliding mode (HOSM) observer. The back electromotive forces (EMFs) in the PMSM are treated as unknown inputs and are estimated with the HOSM observer without the need…

Mathematical Problems in Engineering, 2014, 2014, pp.589109. ⟨10.1155/2014/589109⟩. ⟨hal-03644609⟩

Article dans une revue

Current configuration detection in hybrid systems: Application to a conjunction–disjunction mechatronics system

Fayssal Arichi, Cherki Brahim, Mohamed Djemai

This paper deals with the problem of detecting the current conﬁgurations of hybrid mechatronic systems, where theevolution of the discrete part is governed by a Petri net. The considered class of systems may have several subsystems,with diﬀerent dimensions, evolving at the same time. The current…

Mechatronics, 2014, 24 (8), pp.1262-1268. ⟨10.1016/j.mechatronics.2014.09.012⟩. ⟨hal-03430103⟩

Article dans une revue

Détecter la somnolence des conducteurs dans le transport terrestre, Detecting driver drowsiness in land transport. state of the art

Nedjemi Rachedi, Denis Berdjag, Frédéric Vanderhaegen

In this paper we present a survey of driver states monitoring methods with a special interest in drowsiness and fatigue states detection. We provide a comprehensive view of the field, previous work and encountered problems, proposed solutions and we give some insights on new research directions.…

Journal Européen des Systèmes Automatisés, 2014, 48 (4-5-6), pp.421-452. ⟨10.3166/JESA.48.421-451⟩. ⟨hal-03405741⟩

Article dans une revue

Active Flow Control at the Rear End of a Generic Car Model Using Steady Blowing

Rafika Mestiri, A. Ahmed-Bensoltane, Laurent Keirsbulck, Fethi Aloui, Larbi Labraga

Numerous aerodynamic designs of automotive vehicle have been made to reduce aerodynamic drag for lower fuel consumption. Indeed, automotive industry was primarily interested in the passive control based on the shape changes. But, as shape modifications are limited by several factors, this industry…

Journal of Applied Fluid Mechanics, 2014, 7 (04), pp.565-571. ⟨10.36884/jafm.7.04.21752⟩. ⟨hal-03627483⟩

Article dans une revue

AmIs sustainability: evaluation framework based on fuzzy logic

Souad Rabah, Mourad Abed, Nesrine Zoghlami

Ambient intelligence (AmI) is a technology that should help to develop tasks and create new communication interface with our intelligent environment while enjoying a sufficiently high life level without destroying its natural and environmental support. Creating a simple and sophistic evaluation…

International Journal of Services and Operations Management, 2014, 19 (2), pp.265-286. ⟨10.1504/IJSOM.2014.065336⟩. ⟨hal-03576990⟩