Publications

• Article dans une revue

HARIS-FSO: A hybrid active RIS-Assisted OCDMA-NOMA architecture with BCD optimization for 6G Free-Space optical networks

Mohamed Rahmani, Iyad Dayoub, A.S. Karar, Mohammed Al-Rayif

Optics and Laser Technology, 2026, 194, pp.114511. ⟨10.1016/j.optlastec.2025.114511⟩. ⟨hal-05440839⟩

• Article dans une revue

ZnO-based bulk acoustic wave transducers optimization for gigahertz-frequency applications

Reda Aitayad, Hatem Dahmani, Karim Dogheche, Malika Toubal, Julien Carlier, Denis Remiens

This work aims to optimize zinc oxide (ZnO) thin films and ZnO-based bulk acoustic wave (BAW) transducers for gigahertz operation. ZnO was deposited by RF magnetron sputtering under controlled Ar/O2 ratios (0 %–30 % O2) and subjected to a 400 C post-deposition anneal. The films were evaluated by…

Sensors and Actuators A: Physical , 2026, 398, pp.117340. ⟨10.1016/j.sna.2025.117340⟩. ⟨hal-05495945⟩

• Article dans une revue

PNA aptamer-based bioreceptors for cardiac biomarker (cTnI) detection: Insight into the structural and stability-related aspects

Francesco Basini, Abdellah Hambli, Subhankar Sahu, Rupali Bagale, Manova Santhosh Yesupatham, Christophe Ritzenthaler, David Montaigne, Eloise Woitrain, Henri Happy, Rabah Boukherroub, Wolfgang Knoll, Sabine Szunerits, Roberto Corradini

<div><p>Aptamers, nucleic acid molecules that fold into specific three-dimensional structures, have been extensively used in the biosensing field to accomplish sensitive and specific monitoring of a wide range of biomarkers. Peptide nucleic acid (PNA), in this context, can be considered…

Nano Today, 2026, 67, ⟨10.1016/j.nantod.2025.102957⟩. ⟨hal-05425091⟩

• Article dans une revue

Microstreaming induced by a micro-cantilever vibrating elliptically in a viscous fluid

Jules Ghesquiere, Gustav Modler, Saeid Mollaei, David Guérin, Olivier Bou Matar, Henrik Bruus, Michael Baudoin, Sarah Cleve

The acoustically excited vibrations of a micrometric object in a viscous liquid induce a net fluid flow known as microstreaming. This phenomenon can be harnessed for a variety of microscale applications, including particle transport, fluid mixing and the propulsion of micro-swimmers. Acoustic…

Journal of Fluid Mechanics, 2026, 1028, pp.A11. ⟨10.1017/jfm.2025.10927⟩. ⟨hal-05500993⟩

• Article dans une revue

Enhancing support vector clustering labeling efficiency with scalable heuristics

Abou Bakr Seddik Drid, Abdelhamid Djeffal, Abdelmalik Taleb-Ahmed

Support Vector Clustering (SVC) is a powerful unsupervised learning method for detecting arbitrarily shaped clusters, making it highly relevant for complex pattern analysis tasks. However, its widespread use has been constrained by the high computational cost associated with its labeling phase.…

Pattern Analysis and Applications, 2026, 29 (1), pp.35. ⟨10.1007/s10044-026-01608-z⟩. ⟨hal-05500751⟩

• Thèse

Élaboration et caractérisation des propriétés structurales, électriques et piézoélectriques de nanostructures d’oxyde de zinc pour la récupération d'énergie, Elaboration and characterization of the structural, electrical, and piezoelectric properties of zinc oxide nanostructures for energy harvesting

Imen Ben Khaled

L'oxyde de zinc (ZnO) est depuis plusieurs décennies l’un des matériaux piézoélectriques les plus prometteurs connus pour ses propriétés piézoélectriques en vue de la récupération de l’énergie. Ce matériau vert peut être un substitut aux matériaux comportant des éléments toxiques tels que le…, Zinc oxide (ZnO) has been, for several decades, one of the most promising piezoelectric materials thanks to its electromechanical properties, making it highly suitable for energy harvesting applications. This environmentally friendly material can serve as an alternative to toxic lead-based…

Electronique. Université Polytechnique Hauts de France; Université de Mons (Belgique), 2026. Français. ⟨NNT : 2026UPHF0008⟩. ⟨tel-05477154⟩

• Thèse

AI-Generated Image Detection Using Multimodal Deep Learning, Détection d'images générées par l'IA à l'aide de l'apprentissage profond multimodal

Mamadou Keita

Generative artificial intelligence (AI) and its applications offer significant benefits but raise potentially critical societal and ethical concerns. This thesis explores the field of synthetic content generation and detection, with a particular focus on synthetic images. These are AI-generated…, L'intelligence artificielle générative (IA) et ses applications offrent des avantages considérables, mais soulèvent des questions sociétales et éthiques potentiellement critiques. Cette thèse explore le domaine de la génération et de la détection de contenus synthétiques, en mettant…

Signal and Image Processing. Université Polytechnique Hauts de France; Institut national des sciences appliquées Hauts-de-France, 2026. English. ⟨NNT : 2026UPHF0005⟩. ⟨tel-05477225⟩

• Thèse

Conception et qualification de guides d'ondes flexibles fonctionnant dans les bandes de fréquences submillimétriques, jusqu'à 220 GHz, Design and qualification of flexible waveguides operating in the submillimeter frequency bands, up to 220 GHz

Alexandre Renau

Les ondes millimétriques et submillimétriques (fréquences térahertz), et plus précisément les bandes de fréquences E (71 - 76/81 – 86 GHz), W (75 – +110 GHz), D (110 – 170 GHz) et G (140 - 220 GHz), suscitent un intérêt croissant pour des applications dans les domaines des télécommunications, de la…, Millimeter-wave and submillimeter-wave frequencies (terahertz range), particularly the E (71–76/81–86 GHz), W (75–110 GHz), D (110–170 GHz) and G (140–220 GHz) bands, are attracting growing interest for applications in telecommunications, defense, medical, and aerospace fields. The E and W bands…

Physique [physics]. Université de Lille, 2026. Français. ⟨NNT : ⟩. ⟨tel-05471542⟩

• 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-05488643⟩

• Thèse

Apport des méthodes vibro-acoustiques non linéaires à la détection et à la localisation d’endommagements dans les structures aéronautiques en matériaux composites, Nonlinear vibro-acoustic methods for the detection and localization of damage in composite aeronautical structures

Pierre Goislot

L’industrie aéronautique opère une transition des matériaux traditionnels vers les matériaux composites, plus légers pour une résistance mécanique équivalente, permettant ainsi une réduction significative de la consommation de carburant. Cependant, ces matériaux subissent des endommagements…, The aeronautical industry is undergoing a transition from traditional materials to composite materials, which offer lower mass for an equivalent mechanical strength, thereby enabling a significant reduction in fuel consumption. However, these materials are susceptible to complex forms of damage, in…

Acoustique [physics.class-ph]. Université Polytechnique Hauts de France; Institut national des sciences appliquées Hauts-de-France, 2026. Français. ⟨NNT : 2026UPHF0002⟩. ⟨tel-05501136⟩