Publications

• Article dans une revue

Temporal fusion strategy for violence detection: utilising convolutional and LSTM neural networks for surveillance videos

Khaled Merit, Mohammed Beladgham, Abdelmalik Taleb-Ahmed

<div xmlns="http://www.tei-c.org/ns/1.0"><p>In the latest intelligent cities, there is a pursuit for the utmost degree of automation and integration of services. One of the major challenges in the surveillance industry is the need to automate real-time video analysis to…

Acta Polytechnica, 2025, 65, pp.306 - 319. ⟨10.14311/ap.2025.65.0306⟩. ⟨hal-05215076⟩

• Autre publication scientifique

Les organes sur puce veulent s'affranchir du modèle animal grâce à l'électronique

Anthony Treizebre, Severine Fontaine

Foie, cœur, poumon, rein, intestin… Les organes sur puce permettent de recréer certaines fonctions d'organes humains – attention, il ne s'agit pas d'organes complets ! – à partir de cellules cultivées dans un système microfluidique, parfois instrumenté de petits dispositifs…

ElectroniqueS, 2025, pp.75-78. ⟨hal-05429877⟩

• Communication dans un congrès

Advanced Resource Management in Cell-Free Massive MIMO Systems with WINNER II Channels

Selina Cheggour, Eric Pierre Simon, Valeria Loscri

The evolution toward Beyond 5G (B5G) and Sixth-Generation (6G) networks demands innovative solutions to enhance connectivity and network efficiency. Cell-free massive multiple-input multiple-output (CF-mMIMO) systems address these challenges by deploying distributed access points (APs) to provide…

LANMAN 2025 - IEEE International Symposium on Local and Metropolitan Area Networks, Jul 2025, Lille, France. ⟨hal-05062956⟩

• Communication dans un congrès

Secrecy Energy-Efficient Solution in Multi-User NOMA-Enabled Ambient Backscattering

Miled Alam, Abdul Karim Gizzini, Laurent Clavier

In this paper, we investigate the secrecy energy-efficiency of a multi-user downlink non-orthogonal multiple access (NOMA) system with ambient backscatter communication in the presence of a passive eavesdropper. We formulate the optimization problem as a trade-off between secrecy sum-rate and total…

5th IEEE International Mediterranean Conference on Communications and Networking (MEDITCOM 2025), Jul 2025, Nice, France. ⟨hal-05088548⟩

• Communication dans un congrès

Advancing RF GaN HEMT Technology: Innovations in Buffer Engineering for Enhanced Performance and Robustness

F Medjdoub

Advancing RF GaN HEMT technology is essential to meet the growing demands of next-generation RF power devices, particularly in the mm-wave spectrum, where high efficiency, robustness, and superior output power density are critical. Highly scaled GaN transistors, however, face significant challenges…

15th International Conference on Nitride Semiconductors (ICNS-15), Jul 2025, Malmö Sweden, Sweden. ⟨hal-05344634⟩

• Communication dans un congrès

Stress and doping analysis of low n-doped GaN layers grown on GaN, silicon and sapphire substrates by micro-Raman 2. Physics and characterization

Ndembi Ignoumba-Ignoumba, Camille Sonneville, Adrien Bidaud, Mohammed El Amrani, Thibaud Guillemin, Maroun Dagher, Vishwajeet Maurya, Florian Bartoli, Eric Frayssinet, Farid Medjdoub, Julien Buckley, Yvon Cordier, Matthew Charles, Dominique Planson, Cyril Buttay

Vertical GaN power devices counters the drawbacks of the lateral ones. The best performances are observed with vertical GaN-on-GaN, but the absence of large GaN substrates makes the homoepitaxy option less marketable than the heteroepitaxy one. However, thick heteroepitaxial GaN drift layers must…

ICNS-15 - the 15th International Conference on Nitride Semiconductors, Jul 2025, Malmö, Sweden. ⟨hal-05097968⟩

• Communication dans un congrès

Buffer engineering to boost the blocking voltage of GaN High Electron Mobility Transistors on sapphire

Adrien Bidaud, Lyes Ben Hammou, Abdelkhalek Sefssafi, Etienne Okada, Katir Ziouche, Ajit Paranjpe, Farid Medjdoub

Enhance High-Power GaN HEMT Performance on Sapphire by Boosting breakdown voltage (BV) by integrating a back barrier combined with carbon-doped buffer engineering Minimizing leakage currents and trapping effects → Investigating the role of the back barrier in improving dynamic performance…

15th International Conference on Nitride Semiconductors (ICNS-15), Jul 2025, Malmö, Sweden. ⟨hal-05321265⟩

• Communication dans un congrès

Thermal properties of nano-objects by means of scanning thermal microscopy

Antonin Massoud, Valeria Lacatena, Maciej Haras, Christian Mateo Frausto-Avila, Jose Manuel Sojo Gordillo, Gerard Gadea-Diez, Stéphane Monfray, Jean-Marie Bluet, J.F. Robillard, Victor Arellano-Arreola, Jose Martin Yañez Limon, Andres de Luna Bugallo, David Renahy, Marc Salleras, Carolina Duque Sierra, Pascal Vincent, Luisa Fonseca, Alex Morata, Albert Tarancón, Séverine Gomés, Pierre-Olivier Chapuis

FisMat 2025 biennial conference on condensed matter physics - Ultrafast Mechanical and Thermal Dynamics thematic workshop, Jul 2025, Venise, Italy. ⟨hal-05347651⟩

• HDR

Bridging Surface Science and van der Waals Engineering: Growth Mechanisms and Assembly of Functional Nanostructures

Nataliya Kalashnyk

This HDR memoir presents a concise overview of my research activity, from postgraduate studies to my current academic position, with a focus on nanoscience, surface science, and materials science. It begins with the scientific motivations behind the choice of these fields, followed by a summary of…

Physics [physics]. Université de Lille, 2025. ⟨tel-05137707⟩

• Article dans une revue

Sputtered molybdenum nitride films for asymmetric micro-supercapacitors in aqueous electrolyte

Aiman Jrondi, Pardis Simon, Jérémie Chaillou, Lydia Karmazin, Antonella Iadecola, Isabelle Roch-Jeune, Herve Vezin, Wan-Yu Tsai, Pascal Roussel, Christophe Lethien

Here we investigated the electrochemical performance of molybdenum nitride films as an efficient electrode for asymmetric micro-supercapacitors. Molybdenum nitride films were successfully deposited and optimized by reactive magnetron sputtering. On the one hand, the tuning of several deposition…

Energy Storage Materials, 2025, 80, pp.104399. ⟨10.1016/j.ensm.2025.104399⟩. ⟨hal-05158241⟩