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Affichage de 1841 à 1850 sur 2006

Article dans une revue

An iterative variable-based fixation heuristic for the 0-1 multidimensional knapsack problem

Christophe Wilbaut, Saïd Salhi, Saïd Hanafi

An iterative scheme which is based on a dynamic fixation of the variables is developed to solve the 0-1 multidimensional knapsack problem. Such a scheme has the advantage of generating memory information, which is used on the one hand to choose the variables to fix either permanently or temporarily…

European Journal of Operational Research, 2008, 199, pp.339 - 348. ⟨10.1016/j.ejor.2008.11.036⟩. ⟨hal-03723748⟩

Article dans une revue

A behavioral multi-agent model for road traffic simulation

Arnaud Doniec, René Mandiau, Sylvain Piechowiak, Stéphane Espié

Multi-agent systems allow the simulation of complex phenomena that cannot easily be described analytically. Multi-agent approaches are often based on coordinating agents whose actions and interactions are related to the emergence of the phenomenon to be simulated. In this article, we focus on road…

Engineering Applications of Artificial Intelligence, 2008, 21 (8), pp.1443-1454. ⟨10.1016/j.engappai.2008.04.002⟩. ⟨hal-04129203⟩

Article dans une revue

An alternative to inverse dynamics joint torques estimation in human stance based on a Takagi-Sugeno unknown inputs observer in the descriptor form

Kevin Guelton, Sebastien Delprat, Thierry-Marie Guerra

An alternative to inverse dynamics joint torques estimation in human stance is proposed. This alternative is based on unknown-input observers which allow real-time estimation of joint torques and angular velocities from measurements of the angular positions. To design the aforementioned observer, a…

Control Engineering Practice, 2008, 16 (12), pp.1414-1426. ⟨10.1016/j.conengprac.2008.04.002⟩. ⟨hal-00793233⟩

Article dans une revue

Propulsion and Braking in the Study of Asymmetry in Able-Bodied Men's Gaits

François Potdevin, Christophe Gillet, Franck Barbier, Yann Coello, Pierre Moretto

The present study was designed to test functional differences between both lower limbs in able-bodied gait according to fore-aft force impulse analyses and to assess the existence of a preferential lower limb for forward propulsion and braking. The leg that did more of the braking (Most Braking…

Perceptual and Motor Skills, 2008, 107 (3), pp.849-861. ⟨10.2466/PMS.107.3.849-861⟩. ⟨hal-04396182⟩

Article dans une revue

Does B.I.R.D foot control supply sensitivity disturbance induced by EMLA cream anaesthesia ?

Aurélien Descatoire, Pierre Moretto

Numerous studies on the development of new biofeedback device conception have already been undertaken. Patients with loss of protective pain sensation are unable to modify their gait when abnormal and excessive plantar pressure occurs. For this reason, _we have developed and tested a portable…

Journal of Medical Informatics and Technologies, 2008, 12, pp.123-127. ⟨hal-04396133⟩

Article dans une revue

Turbocharged SI engine modelling and control strategy

Djamel Khiar, Jimmy Lauber, Thierry-Marie Guerra, Thierry Floquet, Guillaume Colin, Yann Chamaillard

This paper deals with the non-linear modelling and control of a turbocharged spark ignition engine. In the automotive industry, downsizing-based turbocharging is considered as a powerful technique to improve engine performances as fuel economy, pumping loss reduction to increase engine efficiency…

International Journal of Vehicle Design, 2008, 48 (3/4), pp.255-270. ⟨10.1504/IJVD.2008.022579⟩. ⟨hal-00616627⟩

Article dans une revue

Robust pole placement controller design in LMI region for uncertain and disturbed switched systems

Badr Mansouri, Noureddine Manamanni, Kevin Guelton, Mohamed Djemai

This paper concerns the state feedback control for continuous-time, disturbed and uncertain linear switched systems with arbitrary switching rules. The main result of this work consists in getting a LMI (Linear Matrix Inequalities) condition guaranteeing a robust pole placement according to some…

Nonlinear Analysis: Hybrid Systems, 2008, 2 (4), pp.1136-1143. ⟨10.1016/j.nahs.2008.09.010⟩. ⟨hal-00793234⟩

Article dans une revue

Discrete Takagi-Sugeno's Fuzzy Models: Reduction of the Number of LMI in fuzzy control techniques

François Delmotte, Thierry-Marie Guerra, Alexandre Kruszewski

Conditions about the stabilization of Takagi-Sugeno fuzzy models can systematically be derived and solved usually using linear matrix inequality problems. Current research tries to lower any pessimism. However, often it leads to an important increase in the number of decision variables, and…

IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics, 2008, 38 (5), pp.1423-1427. ⟨10.1109/TSMCB.2008.927263⟩. ⟨hal-00519429⟩

Article dans une revue

A new dimensionless number highlighted from mechanical energy exchange during running

Nicolas Delattre, Pierre Moretto

This study aimed to highlight a new dimensionless number from mechanical energy transfer occurring at the centre of gravity (Cg) during running. We built two different-sized spring-mass models (SMM #1 and SMM #2). SMM #1 was built from the previously published data, and SMM #2 was built to be…

Journal of Biomechanics, 2008, 41 (13), pp.2895-2898. ⟨10.1016/j.jbiomech.2008.06.034⟩. ⟨hal-04396085⟩

Article dans une revue

Vehicle spacing control using robust fuzzy control with pole placement in LMI region

P.-F. Toulotte, Sebastien Delprat, Thierry-Marie Guerra, Jacques Boonaert

This work presents a robust pole placement in a LMI region for Takagi-Sugeno (TS) (Takagi and Sugeno 1985) fuzzy models. The objective is to find a set of Linear Matrix Inequalities in order to ensure that the linear model poles of the nonlinear TS model remain in a specified region of the complex…

Engineering Applications of Artificial Intelligence, 2008, 21 (5), pp.756-768. ⟨10.1016/j.engappai.2007.07.009⟩. ⟨hal-04819771⟩