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Communication dans un congrès

Multi-scale friction coefficient : from roughness to system computation using deep learning

Victor Lalleman, Pierre Gosselet, Cédric Hubert, Stéphane Salengro, Vincent Magnier

The presence of surface defects (roughness,surface defects, profiles, etc.) within a contact undeniably leads to a modification of its local properties such as the coefficient of friction. On the operations of wheel chock on railway axles, this surface condition is essential because it determines...

Eurobrake, Sep 2023, Barcelone, Spain. ⟨hal-05289166⟩

Communication dans un congrès

Haptic Wheelchair Simulator: Design with Experimental Validation

Amel Ait Ghezala, Chouki Sentouh, Philippe Pudlo, Gérald Conreur, Thierry Poulain

Wheelchair accessibility is still not assured for many manual wheelchair (MWC) users, due to inadequate urban construction, but also due to the biomechanical capacities issue of MWC users. Therefore, there is a great potential in the development of technologies to address this problem, one of them...

Driving Simulation Conference Europe 2023 VR, Sep 2023, Antibes (06), France. ⟨hal-04631738⟩

Article dans une revue

Transfemoral amputees adapt their gait during cross-slope walking with specific upper-lower limb coordination

S. Persine, E. Simoneau-Buessinger, F. Charlaté, J. Bassement, C. Gillet, N. Découfour, S. Leteneur

Background: Unilateral lower limb amputees have asymmetrical gaits, particularly on irregular surfaces and slopes. It is unclear how coordination between arms and legs can adapt during cross-slope walking. Research question: How do transfemoral amputees (TFAs) adapt their upper-lower limb...

Gait & Posture, 2023, 105, pp.171-176. ⟨10.1016/j.gaitpost.2023.08.001⟩. ⟨hal-04308982⟩

Article dans une revue

The morphology and evolution in Al-Cu and Al-Fe magnetic pulse weld interfaces characterized through phase-contrast micro-tomography, Morphologie et évolution des interfaces de magnéto-soudures (soudures par impulsion magnétiques) d'aluminium (Al) - Cuivre (Cu) et d'Al - Acier (Fe) caractérisées par micro-tomographie à contraste de phase

Benjamin Zielinski, Tarik Sadat, Bratislav Lukić, Alexander Rack, Eric Markiewicz, Laurent Dubar

Magnetic Pulse Welding (MPW) facilitates the permanent joining of dissimilar metallic materials through the sudden impact generated by a magnetic pulsed field. The process can introduce distinct morphological features at the interface of bi-material joints, which subsequently affect the joint'..., La soudure par impulsion magnétique ou magnéto-soudage (MPW - "Magnetic Pulse Welding) facilite la soudure permanente de matériaux dissimilaires au travers d'un impact brutal généré par un champ magnétique. Le procédé introduit des structures morphologiques très particulières à l'...

Tomography of Materials and Structures, 2023, 3, pp.100018. ⟨10.1016/j.tmater.2023.100018⟩. ⟨hal-04293252⟩

Article dans une revue

Observer design with exponential time-varying gain for Takagi–Sugeno fuzzy systems with continuous and aperiodic sampled outputs

Hiba Fawzia Bouchama, Michael Defoort, Jimmy Lauber, Denis Berdjag

In this paper, an observer with exponential time-varying gain is proposed for a class of nonlinear systems in Takagi–Sugeno form with both continuous-time and aperiodic sampled outputs. The proposed observer consists of two parts: one related to the continuous-time outputs and one related to the...

Journal of The Franklin Institute, 2023, 360 (13), pp.10041-10063. ⟨10.1016/j.jfranklin.2023.07.038⟩. ⟨hal-04239455⟩

Article dans une revue

Reduced-order model based dynamic tracking for soft manipulators: Data-driven LPV modeling, control design and experimental results

Shijie Li, Tran Anh-Tu Nguyen, Thierry-Marie Guerra, Alexandre Kruszewski

We propose a generic nonlinear reduced-order tracking control method for elastic soft robots. To this end, a new linear parameter varying (LPV) control framework is developed using the data collected from the soft robots. Specifically, for LPV modeling we first derive a nonlinear robot model, which...

Control Engineering Practice, 2023, 138, pp.105618. ⟨10.1016/j.conengprac.2023.105618⟩. ⟨hal-04278797⟩

Article dans une revue

Covering delivery problem with electric vehicle and parcel lockers: Variable neighborhood search approach

Milena Vukićević, Mustapha Ratli, Atika Rivenq, Maria Zrikem

AbstractMinimizing total delivery time and carbon footprint in last mile delivery presents a real challenge in logistic field. Usage of electric vehicles in combination with parcel lockers responds to these challenges. In this paper we introduce the covering delivery problem in last mile with...

Computers and Operations Research, 2023, 157, pp.106263. ⟨10.1016/j.cor.2023.106263⟩. ⟨hal-04107408⟩

Thèse

Efficient Hardware-aware Neural Architecture Search for Edge Computing, Optimisation Automatique des Applications d'Apprentissage Profond sur Plateformes Matérielles Edges

Hadjer Benmeziane

It is widely anticipated that inference models based on Deep Neural Networks (DNN) will be actively employed in many edge platforms due to several compelling reasons. Firstly, DNNs have demonstrated exceptional performance in various complex tasks such as image recognition, natural language..., Les modèles d'inférence basés sur les réseaux neuronaux profonds (eng, Deep Neural Networks (DNN)) sont largement utilisés dans de nombreuses platesformes de périphérie pour plusieurs raisons. Premièrement, les DNN ont démontré des performances exceptionnelles dans diverses tâches complexes...

Machine Learning [cs.LG]. Université Polytechnique Hauts-de-France, 2023. English. ⟨NNT : 2023UPHF0022⟩. ⟨tel-04224035⟩

Cours

Effects of Moving Speed and Phone Location on Eyes-Free Gesture Input with Mobile Devices

Milad Jamalzadeh, Yosra Rekik, Laurent Grisoni, Radu-Daniel Vatavu, Gualtiero Volpe, Alexandru Dancu

Using smartphones while moving is challenging and can be dangerous. Eyes-free input gestures can provide a means to use smartphones without the need for visual attention from users. In this study, we investigated the effect of different moving speeds (standing, walking, or jogging) and different...

Doctoral. York (Great Britain), United Kingdom. 2023. ⟨hal-04204270⟩

Cours

Hap2Gest: An Eyes-Free Interaction Concept with Smartphones Using Gestures and Haptic Feedback

Milad Jamalzadeh, Yosra Rekik, Alexandru Dancu, Laurent Grisoni

Smartphones are used in different contexts, including scenarios where visual and auditory modalities are limited (e.g., walking or driving). In this context, we introduce a new interaction concept, called Hap2Gest, that can give commands and retrieve information, both eyes-free. First, it uses a...

Doctoral. York (United Kingdom), United Kingdom. 2023. ⟨hal-04204271⟩