Publicaciones

Affichage de 391 à 400 sur 16055

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Strain energy harvesting performances of piezoelectric composite transducers in rolling tires: a numerical study

Arthur Givois, Florian Allein, Hung Le Khanh, Hervé Dietsch, Charles Croënne, Bertrand Dubus

<div><p>Tire-pavement contact is responsible for mechanical strain energy which can be used to power autonomous smart devices in the context of automotive industry. Power harvesting capabilities of piezoelectric composites included in the host structure are numerically evaluated from...

2025. ⟨hal-05361358⟩

COMM

Ondes Élastiques Topologiquement Guidées pour l’Haptique de Surface

Massaï Hatoumva, Charles Croënne, Bertrand Dubus, Arthur Paté, Marco Miniaci, Florian Allein, Frédéric Giraud

Les cristaux phononiques topologiques marquent une avancée majeure dans le contrôle des ondes élastiques en permettant la synthèse de modes localisés spécifiques (états de bords). Si les propriétés de ces modes font actuellement l’objet de nombreuses études, la question de leur perception haptique...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365341v2⟩

COMM

Focalisation d’ondes élastiques guidées par ouverture synthétique à l’aide de réseaux de patchs magnétostrictifs

Dieynaba Boiro, Alain Lhémery, Sébastien Grondel

Les patchs magnétostrictifs (PM) constituent une alternative aux transducteurs piézoélectriques pour émettre / recevoir des ondes élastiques ultrasonores dans les solides. Ils sont composés d’une bande de matériau fortement magnétostrictif collée à la pièce (dans laquelle on veut émettre / être...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365515⟩

COMM

Validation expérimentale d’un banc de mesure acoustique de raquette de padel

Thomas Daney, Arthur Paté, Jean-Loïc Le Carrou, Delphine Chadefaux

Actuellement, le choix de remplacer une raquette de padel repose sur des critères subjectifs. De plus, le vieillissement de la raquette pourrait avoir des répercussions sur la santé du joueur et sur les performances de la raquette. Le son rayonné de l'impact d'une balle sur une raquette...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365994⟩

ART

Enhanced near-infrared organic photodetectors leveraging core–shell nanotripods

Kaiwen Zheng, Baozhong Deng, Nan Chen, Clemence Chinaud-Chaix, Mona Tréguer-Delapierre, B. Grandidier, Renaud Bachelot, Tao Xu, Jianhua Zhang, Furong Zhu

Near-infrared (NIR) photodetectors are essential for diverse applications, including medical diagnostics, optical communication, and bioimaging. Traditional photodetectors, typically made from silicon and III–V semiconductors, struggle with large-area devices on precured or flexible substrates due...

ACS Applied Materials & Interfaces, 2025, 17 (23), pp.34304-34316. ⟨10.1021/acsami.5c02476⟩. ⟨hal-05119320⟩

ART

Terahertz time-domain ellipsometry with spintronic emitters: Pauli coefficients as a superior alternative to Jones and Mueller matrices

Pierre Koleják, Jiaming Liu, Robin Silber, Martin Mičica, Ondřej Ballada, Čestmír Barta, Romain Lebrun, Nicolas Tiercelin, Mathias Vanwolleghem, Kamil Postava

We introduce terahertz complete time-domain spectroscopic ellipsometry (THz-cTDSE), extending traditional ellipsometry by determining full Jones and Mueller matrices for in-depth material characterization. This marks the first application of spintronic terahertz emitters in ellipsometry, achieving...

IEEE Transactions on Terahertz Science and Technology, 2025, pp.1-17. ⟨10.1109/TTHZ.2025.3559074⟩. ⟨hal-05065593⟩

ART

Rethinking Attention Gated with Hybrid Dual Pyramid Transformer-CNN for Generalized Segmentation in Medical Imaging

Fares Bougourzi, Fadi Dornaika, Abdelmalik Taleb-Ahmed, Vinh Truong Hoang

Inspired by the success of Transformers in Computer vision, Transformers have been widely investigated for medical imaging segmentation. However, most of Transformer architecture are using the recent transformer architectures as encoder or as parallel encoder with the CNN encoder. In this paper, we...

Lecture Notes in Computer Science, 2025, Pattern Recognition 27th International Conference, ICPR 2024, Kolkata, India, December 1–5, 2024, Proceedings, Part IV, 15304, pp.243-258. ⟨10.1007/978-3-031-78128-5_16⟩. ⟨hal-04850794⟩

ART

Identification of the differential and synergic lipotoxic patterns of oleic acid, palmitic acid, and their mixture in 3D HepG2/C3A tissue using liver‐on‐chip technology

Lisa Morisseau, Valérie Pawlowski, Valérie Plaisance, Mathilde Lucas, Cécile Legallais, Yasuyuki Sakai, Amar Abderrahmani, Rachid Jellali, Eric Leclerc

The metabolic dysfunction‐associated steatotic liver disease (MASLD, previously formerly known as non‐alcoholic fatty liver disease, NAFLD) is rapidly expanding worldwide in parrallel with the obesity pandemic. Dietary fatty acids including oleic (OA) and palmitic acids (PA) contribute to the...

Biotechnology Progress, In press, ⟨10.1002/btpr.70075⟩. ⟨hal-05318221⟩

ART

Measurement of surface acoustic wave attenuation in aluminum using transverse acoustic field

Dame Fall, Marc Duquennoy, Nikolay Smagin, Zakariae Oumekloul, Mohammadi Ouaftouh

This paper deals with the estimation of the attenuation of surface acoustic waves (SAWs). The proposed solution consists in measuring the displacement field transversely to the axis of propagation of the acoustic beam at several distances from the transducer, considering the entire field. Unlike...

AIP Advances, 2025, 15 (6), pp.0650026. ⟨10.1063/5.0260423⟩. ⟨hal-05150833⟩

ART

Dynamic switching of ferrocene and plasmonic interactions in Au/self-assembled monolayer/single Ag nanocube molecular junctions

Mariem Ben Youssef, Peeranuch Poungsripong, Hugo Bidotti, Halidou Abdoul-Yasset, Didier Gigmes, Olivier Margeat, Beniamino Sciacca, Judikaël Le Rouzo, David Duché, Dominique Vuillaume

We report the redox switching of ferrocene moieties embedded in a double tunnel barrier plasmonic cavity fabricated from a click-chemistry self-assembled monolayers of ferrocenyl-alkylthiol on ultra flat gold surfaces, connected to a single poly(vinylpyrrolidone) capped silver nanocube, AgNC, which...

Journal of Physical Chemistry C, 2025, 129, pp.7855-7867. ⟨10.1021/acs.jpcc.4c07890⟩. ⟨hal-04766943v2⟩