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Affichage de 221 à 230 sur 16430

Article dans une revue

Spectral colour changes: a promising parameter for smart flax dew retting monitoring solutions

Suvajit Mukherjee, Dmitry Galinousky, Anne- Sophie Blervacq, Lionel Buchaillot, Steve Arscott, Sébastien Grec

Natural fibres from plants such as flax (Linum usitatissimum) are gaining interest as possible green replacements of synthetic fibres to reduce textile pollution footprints. However, the extraction-facilitating process of bast fibres from the flax stem, i.e. dew retting, is still empirically…

Computers and Electronics in Agriculture, 2026, 243, pp.111407. ⟨10.1016/j.compag.2026.111407⟩. ⟨hal-05451451⟩

Pré-publication, Document de travail

Competing effects of charge-carrier and impurity scattering limiting phonon heat conduction in heavily-doped silicon

Raja Sen, Juan Carlos Acosta Abanto, Mélanie Brouillard, Séverine Gomès, Jean-François Robillard, Alessandro Ciavatta, Lorenzo Paulatto, Nathalie Vast, Jérôme Saint-Martin, Jelena Sjakste, Pierre-Olivier Chapuis

With respect to undoped semiconductors, thermal transport by phonons is limited by two additional mechanisms when doping increases: charge-carrier and impurity scattering. Previous works provided contradicting conclusions on the dominant doping-induced scattering mechanism in silicon. In this work…

2026. ⟨hal-05451267⟩

Article dans une revue

On the importance of Ni–Au–Ga interdiffusion in the formation of a Ni–Au/p-GaN ohmic contact

Jules Duraz, Hassen Souissi, Maksym Gromovyi, David Troadec, Téo Baptiste, Géraldine Hallais, Nathaniel Findling, Phuong Vuong, Rajat Gujrati, Thi May Tran, Jean-Paul Salvestrini, Maria Tchernycheva, Suresh Sundaram, Abdallah Ougazzaden, Gilles Patriarche, Sophie Bouchoule

High-resolution transmission electron microscopy (TEM) coupled to energy dispersive X-ray spectroscopy (EDX) is used to clarify the exact role of Ni-Au-Ga interdiffusion mechanisms taking place during rapid thermal annealing under an oxygen atmosphere of a Ni-Au/p-GaN contact. It is shown that…

Journal of Applied Physics, 2026, 139 (2), pp.025102. ⟨10.1063/5.0295857⟩. ⟨hal-05473565v2⟩

Article dans une revue

Comment on “Influence of layer thickness on time domain Brillouin scattering oscillation amplitude in multilayer films” [J. Appl. Phys. 136, 225302 (2024)]

Simon Ayrinhac, Arnaud Devos, Benoît Rufflé, Marie Foret

Picosecond acoustics allows for the probing of multilayered nanometric structures, with applications in various fields of fundamental research. In a recent study, Zhang et al.1 have reexamined the optical cavity effect that impacts time-domain Brillouin acoustic spectroscopy (TDBS) in such systems…

Journal of Applied Physics, 2026, 139, pp.016101. ⟨10.1063/5.0284277⟩. ⟨hal-05472974⟩

Communication dans un congrès

Single-Path Precision: Differentiable Bit-Width & Numeric-Format Learning for FPGA-Efficient Neural Networks

Emanuel Trabes, Kawthar Dellel, Carlos Valderrama, Abdelmalik Taleb-Ahmed

Quantization in neural networks typically requires early commitment to a fixed numerical format—either fixed-point or floating-point—and a limited set of word sizes supported by the target hardware. This rigid choice often compromises either model accuracy or hardware efficiency. While FPGAs offer…

23rd International Conference on Image Analysis and Processing, Sep 2025, Rome, Italy. pp.424-435, ⟨10.1007/978-3-032-10192-1_35⟩. ⟨hal-05700748⟩

Communication dans un congrès

DeeCLIP: A Robust and Generalizable Transformer-Based Framework for Detecting AI-Generated Images

Mamadou Keita, Wassim Hamidouche, Hessen Bougueffa Eutamene, Abdelmalik Taleb-Ahmed, Abdenour Hadid

This paper introduces DeeCLIP, a novel framework for detecting AI-generated images using CLIP-ViT and fusion learning. Despite significant advancements in generative models capable of creating highly photorealistic images, existing detection methods often struggle to generalize across different…

Advanced Concepts for Intelligent Vision Systems (ACIVS 2025), Jun 2025, Tokyo, Japan. pp.146-158, ⟨10.1007/978-3-032-07343-3_12⟩. ⟨hal-05473197⟩

Communication dans un congrès

Beyond Linear Bottlenecks: Spline-Based Knowledge Distillation for Culturally Diverse Art Style Classification

Abdellah Zakaria Sellam, Salah Eddine Bekhouche, Cosimo Distante, Abdelmalik Taleb-Ahmed

Art style classification remains a formidable challenge in computational aesthetics due to the scarcity of expertly labeled datasets and the intricate, often nonlinear interplay of stylistic elements. While recent dual-teacher self-supervised frameworks reduce reliance on labeled data, their linear…

Image Analysis and Processing – ICIAP 2025, Sep 2025, Rome, Italy. pp.401-412, ⟨10.1007/978-3-032-10192-1_33⟩. ⟨hal-05700776⟩

Article dans une revue

Development and validation of a 2D Mason model for ultrasonic transducer arrays: A simplified approach simulating crosstalk and dissipation mechanisms

Anouar Boujenoui, Abdelmajid Bybi, Hayat Reskal, Hassna Khalfi, Lahoucine Elmaimouni, Anne-Christine Hladky-Hennion

Piezoelectric elements arranged in 1D or 2D configurations are commonly used in ultrasonic transducer arrays for medical imaging and non-destructive testing (NDT) applications. These arrays are usually modeled using complex 2D or 3D numerical methods. Based on the equivalent circuit approach…

Applied Acoustics, 2026, 241, pp.110991. ⟨10.1016/j.apacoust.2025.110991⟩. ⟨hal-05214072⟩

Article dans une revue

Structural and electronic signatures of stacking and intralayer transitions in epitaxial bilayer WSe2 on GaP(111)B

Meryem Bouaziz, Samir El Masaoudi, Aymen Mahmoudi, Niels Chapuis, Mathieu Silly, Gilles Patriarche, Iann Gerber, Julien Chaste, Fabrice Oehler, Xavier Wallart, Abdelkarim Ouerghi

Two-dimensional materials from the transition metal dichalcogenides family host multiple crystal phases and stacking configurations that strongly affect their electronic properties. Here, we investigate the structural and electronic phase evolution of epitaxial bilayer WSe2 grown by molecular beam…

Nanoscale, 2026, 18 (26), pp.13969-13978. ⟨10.1039/d6nr01013j⟩. ⟨hal-05687513⟩

Chapitre d'ouvrage

Chapter 15 - Elastic wave engineering in piezoelectric materials: toward next-generation biosensors

Abdelkrim Talbi, Axel Leschiutta, Lei Oscar Cuasay, Carmen Lorena Manzanares, Shreshtha Mishra, Mohand Salah Moussa, Vincent Mortet, Othmane Marbouh, Mohamed Boutghatin, El Houssaine El Boudouti, Philippe Pernod, Bahram Djafari-Rouhani, Olivier Bou Matar

Biosensing applications have significantly benefited from advances in phononic materials and acoustic wave technologies. This chapter explores the use of phononic metasurfaces (PnMs) and phononic crystals (PnCs) to enhance the performance of surface acoustic wave (SAW) biosensors. By leveraging…

Sensing Long-Lived Resonances, Elsevier, pp.323-355, 2026, ⟨10.1016/B978-0-44-332944-9.00025-6⟩. ⟨hal-05576865⟩