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Affichage de 1911 à 1920 sur 2052

Article dans une revue

Demographics of wheelchair users in France: Results of National community-based handicaps-incapacités-dépendance surveys

Nicolas Vignier, Jean-François Ravaud, Myriam Winance, François-Xavier Lepoutre, Isabelle Ville

Objective: To highlight the prevalence of manual and/or powered wheelchair use within the general French population living at home or in institutions, to describe the users and to identify factors determining wheelchair use. Methods: Data were obtained from national communitybased Handicaps-…

Journal of Rehabilitation Medicine, 2008, 40 (3), pp.231-239. ⟨10.2340/16501977-0159⟩. ⟨halshs-00495623⟩

Article dans une revue

Sliding-Mode Formation Control for Cooperative Autonomous Mobile Robots

Michael Defoort, Thierry Floquet, Annemarie Kökösy, Wilfrid Perruquetti

This paper considers the control of a group of autonomous mobile robots. A coordinated control scheme based on a leader-follower approach is developed to achieve formation maneuvers. First and second order sliding mode controllers are proposed for asymptotically stabilizing the vehicles to a time-…

IEEE Transactions on Industrial Electronics, 2008, 55 (11), pp.3944-3953. ⟨10.1109/TIE.2008.2002717⟩. ⟨inria-00424437⟩

Article dans une revue

Joint design and pricing on a network

Luce Brotcorne, Martine Labbé, Patrice Marcotte, Gilles Savard

To optimize revenue, service firms must integrate within their pricing policies the rational reaction of customers to their price schedules. In the airline or telecommunication industry, this process is all the more complex due to interactions resulting from the structure of the supply network. In…

Operations Research, 2008, 56 (5), pp.1104-1115. ⟨10.1287/opre.1080.0617⟩. ⟨hal-01255555⟩

Article dans une revue

Méthode d'aide à la conception basée sur la réutilisation conceptuelle et logicielle

Etienne Cocquebert, Damien Trentesaux, Christian Tahon

Les sites web ayant pris une place prépondérante en termes d'images, de diffusion d'information et d'outils de travail, les concepteurs de sites doivent faire face à un ensemble de critères (coût, délais, qualité, sécurité) de plus en plus contraignants pour satisfaire les…, Since the web sites become more and more important regarding advertising, information announcement, and working tool, web site designers have to take into account an increasing number of criteria (cost, delay, quality, security, maintenance) during design process. We then point out the reasons why…

Revue des Sciences et Technologies de l'Information - Série ISI : Ingénierie des Systèmes d'Information, 2008, 13 (3), pp.9-33. ⟨hal-01876184⟩

Article dans une revue

Comparison of two methods of operating theatre planning : application in a belgian hospital

Sondès Chaabane, Nadine Meskens, Alain Guinet, Marius Laurent

Operating Theatre is the centre of the hospital management's efforts. It constitutes the most expensive sector with more than 10% of the intended operating budget of the hospital. To reduce the costs while maintaining a good quality of care, one of the solutions is to improve the existent…

Journal of System Science and System Engineering, 2008, 17 (2), pp.171-186. ⟨10.1109/ICSSSM.2006.320645⟩. ⟨hal-00207753⟩

Article dans une revue

Simulation comportementale du trafic routier en intersection : un mécanisme de résolution de conflit, Behavioural road traffic simulation at intersection A conflict resolution mechanism

Alexis Champion, Jean-Michel Auberlet, René Mandiau, Stéphane Espie, Christophe Kolski

Parallèlement au développement de modèles de simulation de trafic, dits mathématiques, qui décrivent le trafic de manière statistique, l'INRETS mène depuis plus de quinze ans des recherches sur la simulation du trafic routier fondée sur le comportement réel des conducteurs. ARCHISIM est un…, Besides mathematical simulation models which describe road traffic in a statistical way, the INRETS has led research works on traffic simulation based on the actual driver's behaviour for more than 15 years. ARCHISIM is a behavioural simulation model; traffic phenomena result from individual…

RTS. Recherche, transports, sécurité, 2008, 25 (100), pp.185-194. ⟨10.3166/rts.100.185-194⟩. ⟨hal-03390580⟩

Article dans une revue

The role of eye height in judgment of an affordance of passage under a barrier

Romaric Marcilly, Marion Luyat

According to the ecological theory of visual perception (Gibson, 1979), the perceiver-actor perceives affordances (i.e. opportunities of action) through multiple interactions with the environment. This perception is direct and consists in picking up information that specifies the relationship…, D’après la théorie écologique de la perception (Gibson, 1979), l’observateur-acteur, au cœur de ses multiples interactions avec l’environnement, perçoit des affordances, c’est-à-dire des opportunités d’action. Cette perception serait directe et nécessiterait la prise d’information qui spécifierait…

Current Psychology Letters - Behaviour, Brain and Cognition, 2008, Current Psychology Letters: Behaviour, Brain & Cognition, 24 (1), ⟨10.4000/cpl.3443⟩. ⟨hal-03708026⟩

Article dans une revue

Finite-time stability and stabilization of time-delay systems

Emmanuel Moulay, Michel Dambrine, Nima Yeganefar, Wilfrid Perruquetti

Finite-time stability and stabilization of retarded-type functional differential equations are developed. First, a theoretical result on finite-time stability inspired by the theory of differential equations, using Lyapunov functionals, is given. As it may appear not easily usable in practice, we…

Systems and Control Letters, 2008, 57 (7), pp.561-566. ⟨10.1016/j.sysconle.2007.12.002⟩. ⟨inria-00344524⟩

Article dans une revue

A continuous media approach to modeling the stress saturation effect in granular silos

Jamila Rahmoun, Olivier Millet, Géry de Saxcé

A continuous media approach for the calculation of the stresses in an ensiled granular media which improves on the Janssen theory has been developed. This approach also allows us to represent qualitatively as well as quantitatively the stress saturation phenomenon in granular silos. It is based on…

Journal of Statistical Mechanics: Theory and Experiment, 2008, June 2008, pp.P06011. ⟨10.1088/1742-5468/2008/06/P06011⟩. ⟨hal-00373853⟩

Article dans une revue

The role of intervening variables in driver-ACC cooperation, Rôle des variables intermédiaires dans la coopération conducteur-ACC

Bako Rajaonah, N. Tricot, Françoise Anceaux, Patrick Millot

This paper analyzes the behavior of drivers using Adaptive Cruise Control (ACC) within the theoretical framework of Human-Machine Cooperation. The study was carried out on a driving simulator. Driving task performance data and responses to a trust questionnaire were analyzed in order to examine the…

International Journal of Human-Computer Studies, 2008, 66 (3), pp.185-197. ⟨10.1016/j.ijhcs.2007.09.002⟩. ⟨hal-02602458⟩