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Affichage de 231 à 240 sur 16553

  • Communication dans un congrès

Polymer Based Photonic Crystals Textiles for Infrared Wave Control

Charlotte Demullier, Yan Pennec, Bahram Djafari-Rouhani, Cyril Calmettes, Fabien Salaün

This paper proposes the design of photonic crystal textiles made from multifilament yarns of low-refractive-index polymers for active infrared fabric and thermoregulation or camouflage functionalities, while being comfortable and easy-to-wear. Transmission and reflection spectra are calculated as a…

Advances in the Textile and Clothing Research (AUTEX 2025), Jun 2025, Dresden, Germany. pp.115-119, ⟨10.1007/978-3-032-20865-1_9⟩. ⟨hal-05669783⟩

  • Article dans une revue

Electrostatic force regularization for neural structured pruning

Abdesselam Ferdi, Abdelmalik Taleb-Ahmed, Amir Nakib, Youcef Ferdi

The demand for deploying deep convolutional neural networks (DCNNs) on resource-constrained devices for real-time applications remains substantial. However, existing state-of-the-art structured pruning methods often involve intricate implementations, require modifications to the original network…

Information Sciences, 2026, 735, pp.123045. ⟨10.1016/j.ins.2025.123045⟩. ⟨hal-05477002⟩

  • Thèse

Graphene-based field-effect transistors with antifouling surfaces for sensing in physiological media, Transistors à effet de champ à base de graphène avec surfaces anti-encrassement pour la détection dans des milieux physiologiques

Rupali Bagale

Receptor-modified graphene-based field-effect transistors (gFET) have been used over the years for bioanalytical sensing. They are largely based on antibody/antigen interactions as lately shown for the sensing of the S1 spike protein of COVID-19. The size of these receptors (13-15 nm) is rather…, Les transistors à effet de champ à base de graphène (GFET) modifiés par des récepteurs ont été utilisés au fil des ans pour la détection bioanalytique. Ils sont en grande partie basés sur des interactions anticorps/antigène, comme cela a été démontré récemment pour la détection de la protéine S1 du…

Physics [physics]. Université de Lille, 2026. English. ⟨NNT : ⟩. ⟨tel-05740637⟩

  • Article dans une revue

Exploiting the insulator–metal transition of VO2 in photocatalytic methane conversion

My Nghe Tran, Duc Manh Nguyen, Matthieu Kpessu Ahounou, Ernesto de la Torre Miranda, Melissa Alzate Banguero, David Troadec, Christophe Coinon, Ahmed Addad, Karima Ben Tayeb, Alexandre Boulle, Pascale Diener, David Mele, Louis Thomas, Xavier Wallart, Lionel Aigouy, Alexandre Zimmers, Aurelian Crunteanu, Vitaly Ordomsky, Bruno Grandidier

Upon illumination, photocatalysts generate charge carriers for redox reactions, but their efficiency is often limited by carrier recombination and poor minority-carrier diffusion, despite many existing junction engineering strategies. Here we exploit the insulator–metal transition in VO2 to produce…

Nature Energy, 2026, 11, pp.613-622. ⟨10.1038/s41560-026-02013-w⟩. ⟨hal-05559160⟩

  • Article dans une revue

Experimental and DFT study of the structural, electronic, and thermoelectrical properties of Li3xLa2/3-xTiO3 (x = 0.125) ceramic leads free for battery applications

Hicham Kacimi-Naciri, Meriem Ben Zennou, Assia Mabrouk, Amine El Azizi, Mohamed Loutou, Mohammed Mansori, Rachid Amrousse, Nadia Faska, Ahmed Bachar

We synthesized Li3xLa2/3− xTiO3 (LLTO, x = 0.125) via solid-state sintering, yielding a structurally stable orthorhombic perovskite with high environmental compatibility. The resulting material was characterized experimentally through X-ray diffraction (XRD), dielectric measurements (permittivity…

Next Materials, 2026, 11, pp.101619. ⟨10.1016/j.nxmate.2026.101619⟩. ⟨hal-05583221⟩

  • Communication dans un congrès

Cracks Propagation and Coalescence in a Griffith-Based Approach

Claudia Binetti

We analyse the effectiveness of a recently proposed model for crack nucleation and propagation in determining possible fracture evolution strategies. By focusing on energetic considerations, we compare different scenarios of fracture evolution and determine the energy favourable strategies.

XXVI AIMETA Conference 2024 (AIMETA 2024), Sep 2024, Naples, Italy. pp.702-711, ⟨10.1007/978-3-032-17231-0_89⟩. ⟨hal-05666740⟩

  • Article dans une revue

A Survey of Structural Attacks on Post-Quantum Cryptosystems Based on Goppa Codes: Evolution, Scope, and Impact on their Variants in the Hamming Metric

Latifa Mostari, Alban Goupil, Abdelmalik Taleb-Ahmed

With the advent of quantum computing, public-key cryptographic systems such as RSA (Rivest–Shamir–Adleman) and ECC (Elliptic Curve Cryptography) have become vulnerable to Shor’s quantum algorithm, leading to a growing interest in post-quantum cryptography. Among the post-quantum approaches, code-…

Archives of Computational Methods in Engineering, 2026, ⟨10.1007/s11831-026-10567-x⟩. ⟨hal-05620456⟩

  • Thèse

Process-Plasma-Material Properties Relationship in the Deposition of Bismuth Sodium Titanate Thin Films by Magnetron Sputtering, Relation procédé–plasma–propriétés des matériaux lors du dépôt de couches minces de titanate de bismuth sodium par pulvérisation cathodique magnétron

Zikriya Khan

This work is dedicated to the synthesis and characterization of ferroelectric piezoelectric Bi0.5Na0.5TiO3 (BNT) thin films. The films were deposited on Si substrates using homemade powder targets by RF magnetron sputtering in an Ar discharge. The target surface analysis, plasma diagnostics, and…, Ce travail est consacré à la synthèse et à la caractérisation de couches minces ferroélectriques et piézoélectriques de Bi₀.₅Na₀.₅TiO₃ (BNT). Les films ont été déposés sur des substrats de silicium (Si) à l’aide de cibles élaborées à partir de poudres synthétisées au laboratoire, par pulvérisation…

Materials. Université Polytechnique Hauts-de-France; Université de Mons (Belgique); Institut national des sciences appliquées Hauts-de-France, 2026. English. ⟨NNT : 2026UPHF0019⟩. ⟨tel-05574229⟩

  • Article dans une revue

Comparison of reverse current mechanisms in GaN Schottky diodes grown on sapphire versus ammonothermal GaN substrates

B Orfao, Mahmoud ABOU DAHER, H Bouillaud, Y Roelens, P Prystawko, R Kucharski, M Bockowski, M Zaknoune

<div><p>In this work, we analyze the reverse current mechanisms in gallium nitride (GaN) Schottky barrier diodes grown on sapphire and native GaN substrates. For the sapphire-substrate sample, two conduction mechanisms are identified: Poole-Frenkel emission (PFE) and trap-assisted…

Journal of Physics D: Applied Physics, 2026, 59 (12), pp.12LT01. ⟨10.1088/1361-6463/ae506d⟩. ⟨hal-05573797⟩

  • Thèse

Etude de l’hétéro-intégration et la gestion thermique des DHBTs InP sur Si pour l’amplification de puissance en gamme sub-THz, Study of Heterogeneous Integration and Thermal Management of InP-on-Si DHBTs for Power Amplification in the sub-THz Range

Abdelmalek Zemour

Cette thèse s’inscrit dans une première collaboration entre STMicroelectronics et l’IEMN autour des technologies III-V, avec pour objectif de combiner dans le futur les transistors III-V aux technologies silicium afin de répondre aux besoins des futurs systèmes de télécommunications. Les travaux…, This thesis is part of a first collaboration between STMicroelectronics and IEMN on III-V technologies, with the long-term objective of combining III-V transistors with silicon technologies to meet the needs of future telecommunication systems. The work therefore aims to integrate THz devices based…

Physique [physics]. Université de Lille, 2026. Français. ⟨NNT : ⟩. ⟨tel-05551236⟩