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Affichage de 701 à 710 sur 16429

Article dans une revue

Experimental observation of mutual coupling in resonator array on thin-metal-film

Surya Revanth Ayyagari, Simonas Indrišiūnas, Alexey Basharin, Vytautas Janonis, Daniil Pashnev, Guillaume Ducournau, Polina Kuzhir, Irmantas Kašalynas

We present the experimental observation of electromagnetic mutual coupling in an array of ring-shaped resonators (meta-atoms) fabricated on a free-standing thin metal film using a maskless direct laser ablation technique. The transmission spectra of various resonator configurations were measured...

Journal of Applied Physics, 2025, 137 (1), ⟨10.1063/5.0245081⟩. ⟨hal-04885168⟩

Article dans une revue

Investigating Impacts of Local Pressure and Temperature on CVD Growth of Hexagonal Boron Nitride on Ge(001)/Si

Max Franck, Jarek Dabrowski, Markus Andreas Schubert, Dominique Vignaud, Mohamed Achehboune, Jean‐françois Colomer, Luc Henrard, Christian Wenger, Mindaugas Lukosius

The chemical vapor deposition (CVD) growth of hexagonal boron nitride (hBN) on Ge substrates is a promising pathway to high-quality hBN thin films without metal contaminations for microelectronic applications, but the effect of CVD process parameters on the hBN properties is not well understood yet...

Advanced Materials Interfaces, 2025, 12 (1), pp.2400467. ⟨10.1002/admi.202400467⟩. ⟨hal-05216562⟩

Communication dans un congrès

Pinces acoustiques hautes fréquences pour la manipulation d'objets micrométriques

Jean-Louis Thomas, Michael Baudoin, Roudy Al Sahely

Les pinces acoustiques sont l’équivalent des pinces optiques, elles utilisent un faisceau focalisé pour piéger en trois dimension un objet à l’aide de la pression de radiation. Ces dernières ont permis de faire des manipulation d’objets micro-métrique avec une précision nano-métrique. Néanmoins une...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365443⟩

Communication dans un congrès

Description de la posture et des vibrations transmises aux doigts du musicien lors de la pratique de la guitare électrique

Delphine Chadefaux, Romain Caron, Nathan Forier-David, Arthur Paté

La compréhension de la pratique musicale est essentielle tant dans des objectifs de facture instrumentale que d’apprentissage du geste ou encore de perception musicale. Dans ce cadre, de nombreuses études se sont intéressées à l’instrument et au son rayonné puis perçu par le musicien et l’auditoire...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05364648⟩

Communication dans un congrès

Elastic wave propagation in diatom frustules

Chiara Gazzola, Xin Zhou, David Troadec, Marco Miniaci

Diatoms are microscopic algae encapsulated inside a silica inorganic exoskeleton called frustule featuring a complex quasi-regular and hierarchical distribution of micro- and nano-scaled pores. The mechanical and optical behaviors of these biological systems have already been investigated in...

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05366196⟩

Article dans une revue

Fast Field Strength Prediction Using Modern Machine Learning in European Cities From Few RF-EMF Measurements: A Neural Tangent Kernel Perspective

Mohammed Mallik, Jorn Schampheleer, Laurent Clavier, Margot Deruyck

The rapid growth of 5G and 6G networks, with their dense deployments, millimeter wave communications, and dynamic beamforming, necessitates scalable simulation tools for performance evaluation, network design, and electromagnetic field (EMF) exposure assessment. EMF simulations model exposure...

IEEE Access, 2025, 13, pp.131003-131014. ⟨10.1109/ACCESS.2025.3589492⟩. ⟨hal-05272896⟩

Article dans une revue

Uncoordinated RIS-Aided Uplink IoT Cell-Free Massive MIMO-NOMA Systems

Mohamad Ousseily, Joumana Farah, Matthieu Crussière, Joseph Doumit, Charbel Abdel Nour, Eric Pierre Simon

Cell-free massive MIMO (CF-mMIMO) has emerged as a promising architecture for beyond 5G networks, offering enhanced coverage and spectral efficiency through distributed antenna arrays. This paper proposes a novel framework integrating reconfigurable intelligent surfaces (RIS) and non-orthogonal...

IEEE Open Journal of the Communications Society, In press, ⟨10.1109/OJCOMS.2025.3623368⟩. ⟨hal-05329424⟩

Article dans une revue

Surface oxidation and oxygen incorporation in ScAlN films grown by molecular beam epitaxy

Valentina Gallardo-Mödinger, Frédéric Georgi, Xavier Wallart, Ileana Florea, Philippe Vennéguès, Yvon Cordier, Maxime Hugues

Recently, there has been much interest in the ScAlN alloy, thanks to its various potential applications in high-frequency high-power, acoustoelectric, and ferroelectric devices. Nonetheless, these applications could be impaired by the presence of oxygen in the alloy and the formation of a surface...

Journal of Applied Physics, 2025, 138 (24), pp.245701. ⟨10.1063/5.0303670⟩. ⟨hal-05440883⟩

Article dans une revue

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, 2025, 42 (1), pp.e70075. ⟨10.1002/btpr.70075⟩. ⟨hal-05318221⟩

Article dans une revue

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⟩