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Affichage de 611 à 620 sur 1989

Article dans une revue

Implementation of a standard stream-upwind stabilization scheme in the element-free Galerkin based solution of advection-dominated heat transfer problems during solidification in direct chill casting processes

Juan Carlos Álvarez-Hostos, Alfonso D. Bencomo, Eli Saúl Puchi-Cabrera, Victor D. Fachinotti, Benjamín Tourn, Joselynne Salazar-Bove

The present work has been conducted in order to propose an alternative solution for the heat transfer problem involved in direct-chill casting (DCC)processes, employing the element-free Galerkin (EFG)method. The internal energy balance has been solved on the basis of this global weak formulation…

Engineering Analysis with Boundary Elements, 2019, 106, pp.170-181. ⟨10.1016/j.enganabound.2019.05.008⟩. ⟨hal-03675896⟩

Article dans une revue

Adaptive nonlinear active suspension control based on a robust road classifier with a modified super-twisting algorithm

Yechen Qin, Jagat Jyoti Rath, Chuan Hu, Chouki Sentouh, Rongrong Wang

For the suspension system equipped with nonlinear hydraulic actuators and excited by external road conditions, a road adaptive intelligent suspension control strategy is developed. In this work, (1) a multi-phase intelligent road adaptive control architecture is developed to enhance the ride…

Nonlinear Dynamics, 2019, 97 (4), pp.2425 - 2442. ⟨10.1007/s11071-019-05138-8⟩. ⟨hal-03479649⟩

Article dans une revue

ENOrMOUS: ENergy Optimization for MObile plateform using User needS

Ismat Chaib Draa, Smail Niar, Emmanuelle Grislin-Le Strugeon, Morteza Biglari-Abhari, Jamel Tayeb

Optimizing energy consumption in modern mobile handled devices plays a crucial role as lowering the power consumption impacts battery life and system reliability. Recent mobile platforms have an increasing number of sensors and processing components. Added to the popularity of power-hungry…

Journal of Systems Architecture, 2019, 97, pp.320-334. ⟨10.1016/j.sysarc.2018.10.004⟩. ⟨hal-01879172⟩

Article dans une revue

Ultra-local model-based control of the square-back Ahmed body wake flow

Baptiste Plumejeau, Sebastien Delprat, Laurent Keirsbulck, Wafik Abassi

This paper presents a new model-free control approach applied to a dynamical fluidic system. The main objective is to evaluate the ability of this closed-loop control technique to control the bistability of a turbulent wake flow past to a square-back Ahmed body. This bistable behavior occurs for…

Physics of Fluids, 2019, 31 (8), pp.085103. ⟨10.1063/1.5109320⟩. ⟨hal-03341963⟩

Article dans une revue

Enhancing the settling time estimation of a class of fixed‐time stable systems

Rodrigo Aldana-Lopez, David Gomez-Gutierrez, Esteban Jiménez-Rodríguez, Juan Diego Sanchez-Torres, Michael Defoort

In this paper, we provide a new nonconservative upper bound for the settling time of a class of fixed-time stable systems. To expose the value and the applicability of this result, we present four main contributions. First, we revisit the well-known class of fixed-time stable systems, to show the…

International Journal of Robust and Nonlinear Control, 2019, 29 (12), pp.4135-4148. ⟨10.1002/rnc.4600⟩. ⟨hal-03644253⟩

Article dans une revue

Stability analysis of a class of switched nonlinear systems using the time scale theory

Fatima Zohra Taousser, Michael Defoort, Mohamed Djemai, Seddik Djouadi, Kevin Tomsovic

This paper investigates stability for a class of switched nonlinear systems evolving on a non-uniform time domain. The studied class of systems switch between a nonlinear continuous-time and a nonlinear discrete-time subsystem. This problem is formulated using time scale theory where the latter is…

Nonlinear Analysis: Hybrid Systems, 2019, 33, pp.195-210. ⟨10.1016/j.nahs.2019.02.006⟩. ⟨hal-03468301⟩

Article dans une revue

A robust method for MR image segmentation and multiple scleroses detection

H. Zouaoui, Abdelouahab Moussaoui, Mourad Oussalah, Abdelmalik Taleb-Ahmed

In the present article, we propose a new approach for the segmentation of the MR images of the Multiple Sclerosis (MS). The Magnetic Resonance Imaging (MRI) allows the visualization of the brain and it is widely used in the diagnosis and the follow-up of the patients suffering from MS. Aiming to…

Journal of Medical Imaging and Health Informatics, 2019, 9 (6), pp.1119-1130. ⟨10.1166/jmihi.2019.2690⟩. ⟨hal-03138564⟩

Article dans une revue

Risk-taking, emotions and socio-cognitive dynamics of pedestrian street-crossing in the city

Stéphanie Coeugnet, Béatrice Cahour, Sami Kraïem

This study investigates pedestrian street-crossing decision-making to better appreciate both the complexity and the dynamics of this activity by analyzing the cognitive, emotional and social processes involved in such situations. We consider street-crossing decision-making in the context of…

Transportation Research Part F: Traffic Psychology and Behaviour, 2019, 65, pp.141-157. ⟨10.1016/j.trf.2019.07.011⟩. ⟨hal-02305633⟩

Article dans une revue

Experimental characterization of the mechanical behaviour and the failure of multi-sheet and multi-material spot welded assembly

Rami Tounsi, Grégory Haugou, Fahmi Chaari, Nicolas Leconte, Eric Markiewicz

An experimental investigation of the mechanical behaviour of three-sheet multi-material spot welded assembly is performed. An experimental device based on the Arcan principle is developed to test the three-sheet spot welded specimen under pure opening mode, pure shear mode and mixed opening/shear…

International Journal of Impact Engineering, 2019, 130, pp.226-238. ⟨10.1016/j.ijimpeng.2019.04.017⟩. ⟨hal-03448674⟩

Article dans une revue

The single-processor scheduling problem with time restrictions: complexity and related problems

Rachid Benmansour, Oliver Braun, Said Hanafi

We consider the single-processor scheduling problem with time restrictions (STR) in order to minimize the makespan, where a set of independent jobs has to be processed on a single processor, subject only to the following constraint: During any time period of length α, the number of jobs being…

Journal of Scheduling, 2019, 22 (4), pp.465-471. ⟨10.1007/s10951-018-0579-8⟩. ⟨hal-03574467⟩