Publications

• Thèse

Optimisation de transducteurs ultrasonores hautes fréquences à base de ZnO pour applications MEMS, Optimization of high-frequency ZnO-based ultrasonic transducers for MEMS applications

Reda Aitayad

Ce manuscrit porte sur la fabrication et l’optimisation de transducteurs à ondes acoustiques de volume (BAW) à base de couches minces de ZnO. L’optimisation concerne d’abord le matériau piézoélectrique en couche mince : le dépôt du ZnO par pulvérisation cathodique RF est optimisé, et la condition…, This manuscript focuses on the fabrication and optimization of bulk acoustic wave (BAW) transducers based on ZnO thin films. The optimization first concerns the piezoelectric thin-film material: ZnO deposition by RF magnetron sputtering is optimized, and the 80% Ar / 20% O₂ condition makes it…

Electronique. Université Polytechnique Hauts-de-France; Institut national des sciences appliquées Hauts-de-France, 2026. Français. ⟨NNT : 2026UPHF0029⟩. ⟨tel-05666602⟩

• Thèse

Deep learning for motor-current-based predictive maintenance of industrial robots: from unsupervised anomaly detection to progressive fault diagnosis, Apprentissage profond pour la maintenance prédictive des robots industriels basée sur le courant moteur : de la détection non supervisée d'anomalies au diagnostic progressif de défauts

Douimia Soufiane

Predictive maintenance of industrial robots is a strategic concern of automotive manufacturing, where takt-time production lines and brownfield infrastructure make every unplanned stoppage costly. This thesis, conducted in partnership with Toyota Motor Manufacturing France (TMMF), takes as case…, La maintenance prédictive des robots industriels est un enjeu stratégique de l'industrie automobile, où les lignes en flux tendu et les infrastructures brownfield rendent tout arrêt non planifié coûteux. Cette thèse, conduite en partenariat avec Toyota Motor Manufacturing France (TMMF), prend…

Automatic. Université Polytechnique Hauts-de-France; Institut national des sciences appliquées Hauts-de-France, 2026. English. ⟨NNT : 2026UPHF0036⟩. ⟨tel-05666819⟩

• Communication dans un congrès

Enhancing Real-Time Object Detection on NVIDIA Jetson Nano via Class-Specific Dataset Splitting for YOLO Models

Chaouki Tadjine, Abdelkrim Ouafi, Abdelmalik Taleb-Ahmed, Yassin El Hillali

Achieving efficient and reliable real-time object detection in resource-constrained edge devices is critical for enabling next-generation autonomous logistics systems. This study presents a modular object detection framework based on class-specific YOLOv8 models, optimized for the NVIDIA Jetson…

14th International Conference on Pattern Recognition Applications and Methods (ICPRAM 2025), Feb 2025, Porto, Portugal. pp.179-192, ⟨10.1007/978-3-032-28661-1_10⟩. ⟨hal-05850593⟩

• Article dans une revue

First-principles analysis of Sr-doped BaTiO3 perovskites’ structural, optical, and thermoelectric properties

Hicham Kacimi-Naciri, Siham Malki, Meriem Ben Zennou, Assia Mabrouk, Mohamed Rguiti, Rachid Amrousse, Nadia Faska, Ahmed Bachar

The influence of strontium (Sr) incorporation on the crystal structure of barium titanate (BaTiO 3 ) has been extensively studied using density functional theory (DFT) calculations with the WIEN2k package and the GGA-PBE method, resulting in significant improvements in its optical and transport…

Results in Physics, 2026, 86, pp.108682. ⟨10.1016/j.rinp.2026.108682⟩. ⟨hal-05625182⟩

• Thèse

Detection of AI-Generated Images and Videosthrough Multimodal and Knowledge-Driven Learning, Détection d’images et de vidéos générées par l’IA par apprentissage multimodal et guidé par la connaissance

Hessen Bougueffa Eutamene

The rapid progress of artificial intelligence (AI) has profoundly transformed the production and dissemination of visual content. Modern generative models, such as Generative Adversarial Networks (GANs) and diffusion-based architectures, enable the creation of highly realistic images and videos…, Les progrès rapides de l’intelligence artificielle (IA) ont profondément transformé la production et la diffusion de contenus visuels. Les modèles génératifs modernes, tels que les réseaux antagonistes génératifs (GAN) et les architectures basées sur la diffusion, permettent de créer des images et…

Signal and Image processing. Université Polytechnique Hauts de France; Institut national des sciences appliquées Hauts-de-France, 2026. English. ⟨NNT : 2026UPHF0033⟩. ⟨tel-05666337⟩

• Article dans une revue

MAFIA-Net: Multimodal Arabic fake-news identification via hybrid attention networks

Khaoula Tabet, Kheir Eddine Daouadi, Akram Bennour, Assia Brek, Abdelmalik Taleb-Ahmed

Today, the rapid proliferation of multimodal fake news poses a serious threat to the integrity of information on social networks. While recent multimodal approaches have advanced the field, existing research predominantly targets English content, leaving Arabic largely underexplored. Moreover,…

Array, 2026, 30, pp.100924. ⟨10.1016/j.array.2026.100924⟩. ⟨hal-05661418⟩

• Article dans une revue

Analytical and numerical study of Friedrich–Wintgen bound states in the continuum in a compact acoustic cavity

S. Khattou, A. Rezzouk, Mh. Moussa, M. Amrani, Eman Abdel-Ghaffar, H. Al-Wahsh, E. El Boudouti, A. Akjouj, L. Dobrzyński, O. Bou Matar, A. Talbi, B. Djafari-Rouhani

Bound states in the continuum (BICs) within open acoustic cavities provide a promising way for achieving high-quality factor resonances which can be exploited in numerous acoustic devices. One particularly intriguing mechanism for the formation of BICs is the Friedrich–Wintgen (FW) mechanism, in…

Journal of the Acoustical Society of America, 2026, 160 (1), pp.102-113. ⟨10.1121/10.0044237⟩. ⟨hal-05683887⟩

• Article dans une revue

Zinc oxide nanowires: Hydrothermal synthesis, and structural, electrical, and piezoelectric characterizations

Imen Ben Khaled, Elhadj Dogheche, Philippe Leclère

Zinc oxide (ZnO) nanowires (NWs) are attractive lead-free piezoelectric nanomaterials with wide range of applications. In this work, vertically aligned ZnO NWs were synthesized on sputtered ZnO seed layers via a hydrothermal process. We investigated the effects of seed layer and NWs synthesis…

Sensors and Actuators A: Physical , 2026, 404, pp.117747. ⟨10.1016/j.sna.2026.117747⟩. ⟨hal-05591625⟩

• Article dans une revue

On electropolymerized fingerprints and their potential for identification and encryption

Antoine Baron, Luc Brulin, Corentin Scholaert, Yannick Coffinier, Fabien Alibart, Sébastien Pecqueur

While human technology is ruled by determinism, biological systems exploit a subtle balance of control and stochasticity. This balance, evident in the morphogenesis of textural patterns imprinted on leaves, fur or skin can help hierarchize organisms both as a representative of their species and as…

Electrochimica Acta, 2026, pp.149449. ⟨10.1016/j.electacta.2026.149449⟩. ⟨hal-05686335⟩

• Communication dans un congrès

Technologies de packaging

Flavie Braud, Samuel Charlot

Ecole thématique CNRS "packaging de composants électroniques", CNRS Ingénierie, Jun 2026, Saint Pierre de Chartreuse, France. ⟨hal-05698097⟩