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Affichage de 741 à 750 sur 16457

Article dans une revue

Polymer-Based Microstructured Photonic Membrane for Passive Heating Textiles

Mohamed Boutghatin, Salim Assaf, Pascal Tilmant, Parastesh Pirasteh-Charrier, Bahram Djafari-Rouhani, Petr Janíček, Petr Nemec, Joël Charrier, V. Thomy, Yan Pennec, Michèle Carette

The development of textiles for personal thermal management is one of the most promising technological solutions to reduce the energy consumption in heating, ventilation, and air conditioning (HVAC) systems. These technologies offer a potentially low-cost solution that can help to limit greenhouse…

ACS Omega, 2025, 10 (36), pp.40922-40929. ⟨10.1021/acsomega.5c02006⟩. ⟨hal-05294684⟩

Communication dans un congrès

Inverted BER Trends for Energy-Detected GRSM-MQAM Massive MIMO Downlink

Oshin Daoud, Haïfa Farès, Yahia Medjahdi, Laurent Clavier, Amor Nafkha

This work investigates Generalized Receiver Spatial Modulation (GRSM) in a massive MIMO downlink scenario over millimetre wave channels. While GRSM enhances spectral efficiency (SE) and reduces power consumption, indexing additional bits using the spatial dimension increases the vulnerability to…

2025 21th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Oct 2025, Marrakesh, Morocco. pp.1-7, ⟨10.1109/wimob66857.2025.11257439⟩. ⟨hal-05395480⟩

Article dans une revue

A Sub-400-nW Real-Time Event-Driven Spectrogram Extraction Unit in 28-nm FD-SOI CMOS for Keyword Spotting Application

Soufiane Mourrane, Benoit Larras, Sylvain Clerc, Andreia Cathelin, Antoine Frappé

Considering the power-hungry nature of speech processing, a keyword spotting (KWS) unit, used to detect multiple spoken words, is often integrated as a front-end layer. KWS systems are always active, and thus, it is extremely important to optimize the devoted power budget. In this context, this…

IEEE Journal of Solid-State Circuits, In press, ⟨10.1109/JSSC.2024.3475948⟩. ⟨hal-04793373⟩

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

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

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⟩

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

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⟩