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Affichage de 1521 à 1530 sur 2043

Article dans une revue

High-gain observer with sliding mode for nonlinear state estimation and fault reconstruction

Kalyana Chakravarthy Veluvolu, Michael Defoort, Yeng Chai Soh

This paper develops a high gain observer with multiple sliding modes for simultaneous state and fault estimations for MIMO nonlinear systems. The novelty lies in the observer design that employs the combination of high-gain observer and sliding mode observer. The proposed observer does not impose...

Journal of The Franklin Institute, 2014, 351 (4), pp.1995-2014. ⟨10.1016/j.jfranklin.2012.12.018⟩. ⟨hal-03644613⟩

Article dans une revue

Geometrically nonlinear analysis of thin-walled structures using efficient Shell-based SPH method

Jun Lin, Hakim Naceur, Daniel Coutellier, Abdel Laksimi

In this paper a shell-based meshless formulation is proposed for the geometrically nonlinear analysis of thin-walled structures using an explicit dynamics scheme based on the Smoothed Particle Hydrodynamics (SPH) method. In the present investigation the SPH method is modified to deal with shell-...

Computational Materials Science, 2014, 85, pp.127-133. ⟨10.1016/j.commatsci.2013.12.010⟩. ⟨hal-03663435⟩

Article dans une revue

Higher‐order sliding mode observer for estimation of tyre friction in ground vehicles

Jagat Jyoti Rath, Kalyana Chakravarthy Veluvolu, Michael Defoort, Yeng Chai Soh

The estimation of friction coefficient for a vehicle when it traverses on different surfaces has been an important issue. In this work, the longitudinal vehicle dynamics, the torsional tyre dynamics and the non-linear LuGre friction dynamics are integrated to model the quarter vehicle dynamics. The...

IET Control Theory and Applications, 2014, 8 (6), pp.399-408. ⟨10.1049/iet-cta.2013.0593⟩. ⟨hal-03644620⟩

Article dans une revue

Is co-contraction responsible for the decline in maximal knee joint torque in older males?

Maxime Billot, Julien Duclay, Emilie Simoneau-Buessinger, Yves Ballay, Alain Martin

While it is often reported that muscular coactivation increases with age, the mechanical impact of antagonist muscles, i.e., the antagonist torque, remains to be assessed. The aim of this study was to determine if the mechanical impact of the antagonist muscles may contribute to the age-related...

AGE, 2014, 36 (2), pp.899-910. ⟨10.1007/s11357-014-9616-5⟩. ⟨hal-03522333⟩

Article dans une revue

A comparison of rigid registration methods for prostate localization on CBCT and the dependence on rectum distension

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

We evaluated automatic three-dimensional intensity-based rigid registration (RR) methods for prostate localization on CBCT scans and studied the impact of rectum distension on registration quality. 106 CBCT scans of 9 prostate patients were used. Each one was registered to the planning computed...

Journal of Physics: Conference Series, 2014, 489 (1), pp.012025. ⟨10.1088/1742-6596/489/1/012025⟩. ⟨hal-03470239⟩

Article dans une revue

Efficient hybrid optimization approach for emission constrained economic dispatch with nonsmooth cost curves

Samir Sayah, Abdellatif Hamouda, Abdelghani Bekrar

Power plants usually operate on the strategy of economic dispatch (ED) regardless of emissions produced. Environmental considerations have become one of the major management concerns. Under these circumstances, the alternative strategy of environmental/economic dispatch (EED) is becoming more and...

International Journal of Electrical Power & Energy Systems, 2014, 56, pp.127-139. ⟨10.1016/j.ijepes.2013.11.001⟩. ⟨hal-03649147⟩

Article dans une revue

Automation-driver cooperative driving in presence of undetected obstacles

Boussaad Soualmi, Chouki Sentouh, Jean-Christophe Popieul, Serge Debernard

The work presented in this paper describes and discusses the principles of a haptic shared control between a human driver and an Electronic copilot (E-copilot) for a vehicle. The aim of the sharing control is to allow the driver to momentarily take control over the E-copilot without deactivating it...

Control Engineering Practice, 2014, 24, pp.106-119. ⟨10.1016/j.conengprac.2013.11.015⟩. ⟨hal-03041173⟩

Article dans une revue

Opportunistic Data Services in Least Developed Countries: Benefits, Challenges and Feasibility Issues

Nicolas Anciaux, Luc Bouganim, Thierry Delot, Sergio Ilarri, Leïla Kloul, Nathalie Mitton, Philippe Pucheral

facilitator in establishing primary education, reducing mortality or supporting commercial initiatives in Least Developed Countries. The main barrier to the development of IT services in these regions is not only the lack of communication facilities, but also the lack of consistent information...

SIGMOD record, 2014, 43 (1), pp.52-63. ⟨10.1145/2627692.2627704⟩. ⟨hal-00971805⟩

Article dans une revue

A simulation-based decision support system to prevent and predict strain situations in emergency department systems

Farid Kadri, Sondès Chaabane, Christian Tahon

The management of patient flow, especially the flow resulting from health crises in emergency departments (ED), is one of the most important problems managed by ED managers. To handle this influx of patients, emergency departments require significant human and material resources, but these are...

Simulation Modelling Practice and Theory, 2014, 42, pp.32-52. ⟨10.1016/j.simpat.2013.12.004⟩. ⟨hal-03644624⟩

Article dans une revue

Geometrical and material parameters to assess the macroscopic mechanical behaviour of fresh cranial bone samples

Audrey Auperrin, Rémi Delille, Denis Lesueur, Karine Bruyere, Catherine Masson, Pascal Drazetic

The present study aims at providing quantitative data for the personalisation of geometrical and 21 mechanical characteristics of the adult cranial bone to be applied to head FE models. A set of 351 22 cranial bone samples, harvested from 21 human skulls, were submitted to three-point bending tests...

Journal of Biomechanics, 2014, 47 (5), pp.1180-1185. ⟨10.1016/j.jbiomech.2013.10.060⟩. ⟨hal-01420191⟩