Publicaciones

Affichage de 1081 à 1090 sur 5525

THESE

Caractérisation et contrôle actif de la traînée aérodynamique d’un corps épais pour diﬀérentes hauteurs de garde au sol : application au transport automobile, Characterization and active control of the aerodynamic drag of a bluﬀ body for diﬀerent ground clearance heights : application to automotive transport

Baptiste Plumejeau

Comme il est admis dans la littérature, l’écoulement autour d’un corps épais rectangulaire peut induire, sous certaines conditions, un comportement bistable (asymétrie de sillage). Cette bi-stabilité apparait à partir d’un nombre de Reynolds critique et dépend fortement de la hauteur de garde au..., As is admitted in the literature, the ﬂow around a rectangular bluﬀ body can induce, under certain conditions, a bistable behavior (wake symmetry breaking). This bistability appears from a critical Reynolds number and strongly depends on the ground clearance height (subbase ﬂow rate). The body...

Mécanique des fluides [physics.class-ph]. Université Polytechnique Hauts-de-France, 2020. Français. ⟨NNT : 2020UPHF0021⟩. ⟨tel-03268431⟩

COMM

Multi-Physical Model for Sizing Optimization of Electrical Machines

Wissem Bekir, Oualid Messal, Louis Lambourg, Frédéric Dubas, Souad Harmand, Afef Kedous-Lebouc, Frédéric Gillon

This paper presents a layered multi-physical model for sizing optimization as well as solving a specific optimization problem of interior permanent-magnet (PM) synchronous machine (IPMSM) for traction application. The advantages of the model structure are the management of the calculation time and...

Conference on Electromagnetic Field Computation, Nov 2020, Pisa, Italy. ⟨hal-03053044v2⟩

ART

Autonomous and non-autonomous fixed-time leader–follower consensus for second-order multi-agent systems

Miguel Angel Trujillo, Rodrigo Aldana-Lopez, David Gomez-Gutierrez, Michael Defoort, Javier Ruiz-León, Héctor Becerra

This paper addresses the problem of consensus tracking with fixed-time convergence, for leader–follower multi-agent systems with double-integrator dynamics, where only a subset of followers has access to the state of the leader. The control scheme is divided into two steps. The first one is...

Nonlinear Dynamics, 2020, 102 (4), pp.2669-2686. ⟨10.1007/s11071-020-06075-7⟩. ⟨hal-03423556⟩

THESE

Afférences cutanées, orteils et contrôle postural. Objectivation biomécanique et perspectives cliniques., Cutaneous afferences, toes, and postural control : Biomechanical objectification and clinical perspectives

Frédéric Viseux

Les objectifs principaux de ce travail de thèse étaient (i) d’envisager le rôle des afférences cutanées plantaires dans les mécanismes de contrôle et de régulation de la posture, (ii) d’examiner, chez le sujet en bonne santé, les effets de stimulations mécaniques de faible intensité appliquées sous..., The main objectives of this thesis work were (i) to consider the effects of plantar cutaneous afferents in the mechanisms of postural control, (ii) to examine, in healthy subjects, the effects of low-intensity mechanical stimulation applied under the toes on postural control in orthostatic stance,...

Médecine humaine et pathologie. Université Polytechnique Hauts-de-France, 2020. Français. ⟨NNT : 2020UPHF0025⟩. ⟨tel-03191324⟩

COMM

UTILISATION DES APPROCHES DE L'INDUSTRIE 4.0 ET DE L'INTERNET PHYSIQUE POUR LE DEPLOIEMENT D'ENTREPOTS URBAINS

Aurélie Édouard, Samir Lamouri, Virginie Fortineau, Yves Sallez, Alexandre Berger

La logistique urbaine est une branche importante de la « supply chain ». Elle englobe les activités de logistique et de transport dans les zones urbaines. Ce domaine de recherche suscite l'intérêt croissant des chercheurs. Dans cet article, nous abordons un nouveau concept : l'entrepôt...

13ème CONFERENCE INTERNATIONALE DE MODELISATION, OPTIMISATION ET SIMULATION (MOSIM2020), 12-14 Nov 2020, AGADIR, Maroc, Nov 2020, AGADIR (virtual), Maroc. ⟨hal-03193070⟩

COMM

MODELING PATIENT FLOW IN THE EMERGENCY DEPARTMENT USING MACHINE LEARNING AND SIMULATION

Emad Alenany, Abdessamad Ait El Cadi

Recently, the combination of machine learning (ML) and simulation is gaining a lot of attention. This paper presents a novel application of ML within the simulation to improve patient flow within an emergency department (ED). An ML model used within a real ED simulation model to quantify the effect...

13th International Conference on Modelling, Optimization and Simulation (MOSIM'20), Agadir, Morocco, 12-14 November 2020, Nov 2020, Agadir, Morocco. ⟨hal-03018123⟩

COMM

RESOURCES SCHEDULING IN THE EMERGENCY DEPARTMENT USING SIMULATION IN DISASTER CONDITIONS: CASE OF COVID-19

Ibrahim Cheaitou, Abdessamad Ait El Cadi, Abdelghani Bekrar, David Duvivier, Anwar Sahili

With the propagation of the Coronavirus (COVID-19), many researchers study the influence of this pandemic on the patient flow at the emergency department (ED). This article proposes a simulation model for the emergency department in the case of COVID-19 period. The model is based on real data. It...

13ème CONFERENCE INTERNATIONALE DE MODELISATION, OPTIMISATION ET SIMULATION (MOSIM2020), 12-14 Nov 2020, AGADIR, Maroc, Nov 2020, AGADIR (virtual), Morocco. ⟨hal-03192728⟩

COMM

Observer-Based Leader-Follower Consensus Tracking with Fixed-time Convergence

Miguel Angel Trujillo, David Gomez-Gutierrez, Michael Defoort, Javier Ruiz-Leon, Héctor Becerra

This paper addresses the problem of consensus tracking with fixed-time convergence, for leader-follower multi-agent systems with double-integrator dynamics, where only a subset of followers has access to the state of the leader. The control scheme is divided into three steps. The first one is...

2020 17th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE), Nov 2020, Mexico City, Mexico. pp.1-6, ⟨10.1109/CCE50788.2020.9299189⟩. ⟨hal-03405107⟩

COMM

Discretization of the Robust Exact Filtering Differentiator Based on the Matching Approach

Jose Eduardo Carvajal Rubio, Juan Diego Sanchez-Torres, Michael Defoort, Alexander Loukianov, Mohamed Djemai

This paper presents a time discretization of the robust exact filtering differentiator, a sliding mode differentiator coupled to filter, which provides a suitable approximation of the derivatives for some noisy signals. This realization rely on the stabilization of a pseudo linear discrete-Time...

2020 17th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE), Nov 2020, Mexico City, Mexico. pp.1-6, ⟨10.1109/CCE50788.2020.9299184⟩. ⟨hal-03690633⟩

COMM

Game Theory-based Human-Assistant Agent Interaction Model

Martial Razakatiana, Christophe Kolski, René Mandiau, Thomas Mahatody

As road traffic is becoming increasingly dense, new needs in terms of intelligent human-machine interaction are emerging for their control by human operators. One avenue of research consists in assisting them in their control task by an assistant agent. This paper presents a feasibility study in...

8th International Conference on Human-Agent Interaction, Virtual Event (HAI 2020), Nov 2020, Virtual Event, Sydney, Australia. pp.187-195, ⟨10.1145/3406499.3415071⟩. ⟨hal-03331082⟩