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Communication dans un congrès

Aerodynamics force estimates from flow field measurements in insect-inspired vibrating wings

Alexandre Dallot, Vincent Stin, Marguerite de La Bigne, Eric Cattan, Sébastien Grondel, Sofiane Ghenna, Olivier Thomas, Benjamin Thiria, Ramiro Godoy-Diana

This study investigates a method to estimate aerodynamic force production of a resonant, twowinged Nano Air Vehicle (NAV) prototype using 2D particle image velocimetry (PIV) and a pressure calculation algorithm. The prototype, with a 7.4 mm chord length, is excited at a range of frequencies around…

DisCoVor 2026, the university of Edinburgh, Jun 2026, Edinburgh, United Kingdom. ⟨hal-05663690⟩

Communication dans un congrès

How EAP helps for an experimental validation of the bending moments theory

Thanh-Hang Tran, Mireille Tixier, Simon Skrzypczak, Bacem Zribi, Sofiane Ghenna, Sébastien Grondel, Eric Cattan

The experimental comparison between the quasi-static moment associated with the blocking force and the dynamic moment generated during free deformation remains challenging and can only be achieved under specific experimental conditions. Although bending moment modeling is well established in the…

EuroEAP 2026 International Conference on Soft Transducers and Electromechanically Active Polymers, EPFL, Jun 2026, Neuchâtel, Switzerland. ⟨hal-05647427⟩

Communication dans un congrès

Real-Time Bidirectional Control of EAP Microactuators Using a Portable and Miniaturized Human–Machine Interface

Taha Ajnada, Sofiane Ghenna, Thanh-Hang Tran, Alexandre Auptel, Loic Venet, Florian Gonzalez, Loic Bellone, Grégory Turbe, Farouk Benmeddour, Sébastien Grondel, Eric Cattan

A portable joystick-based control interface for electroactive polymer (EAP) microactuators is presented, targeting applications such as endoscopic camera steering and soft micromanipulation. The system converts manual joystick commands into precise bipolar voltage stimuli using an STM32 Nucleo…

EuroEAP 2026 International Conference on Soft Transducers and Electromechanically Active Polymers, EPFL, Jun 2026, Neuchâtel, Switzerland. ⟨hal-05646600⟩

Communication dans un congrès

Enhanced steerable thin-film electrode technology for safer cochlear implantation

Bacem Zribi, Ahmad Itawi, Thanh-Hang Tran, Cédric Plesse, Guillaume Tourrel, Sofiane Ghenna, Sébastien Grondel, Eric Cattan

During cochlear implant surgery, standard electrode arrays are surgically inserted into the scala tympani to stimulate the spiral ganglion cells and rehabilitate hearing in deaf patients. However, due to the stiffness and passive nature of the standard electrode arrays insertion into the tympanic…

EuroEAP 2026 International Conference on Soft Transducers and Electromechanically Active Polymers, EPFL, Jun 2026, Neuchâtel, Switzerland. ⟨hal-05647432⟩

Article dans une revue

Substrate-dominated RF losses in 200 mm GaN-on-Si coplanar waveguides up to 150 °C

Elodie Carneiro, François Grandpierron, Lyes Ben Hammou, Gia Ngoc Phung, Kamel Haddadi, Sondre Michler, Po Chun Hsu, Sarad B Thapa, Farid Medjdoub

We present an experimental and simulation study of radio frequency (RF) losses in gallium nitride (GaN)-on-Si coplanar waveguides (CPWs) fabricated on 200 mm GaN-on-Si(111) with high-resistivity silicon substrates. The effects of Au metallization thickness (0.5-1.5 μm), substrate resistivity, and…

AIP Advances, 2026, 16 (6), pp.065027. ⟨10.1063/5.0317639⟩. ⟨hal-05674320⟩

Article dans une revue

Tailoring oxygen vacancies via Bi substitution in LaFeO3 nanoparticles: efficient, cost-effective, and durable anode electrocatalyst for methanol oxidation reaction

Fawzi Hadji, Ouarda Ben Ali, Mourad Mebarki, Rabah Boukherroub, Kilaparthi Sravan Kumar, Mahmoud Omari, Mohammed Sadok Mahboub

The pursuit of durable and cost-effective non-noble metal-based electrocatalysts for direct methanol fuel cells remains a major challenge. To this end, a series of La1-xBixFeO3 nanoparticles with x = 0, 0.1, 0.2, and 0.3 were synthesized using modified Pechini pathway and assessed as potential…

International Journal of Hydrogen Energy, 2026, 243, pp.155641. ⟨10.1016/j.ijhydene.2026.155641⟩. ⟨hal-05645561⟩

Article dans une revue

Modeling and simulation of the InGaAs/Si quantum dot structure for solar cells applications

A. Ouaridhine, A. Aissat, M. Wadi, M.A. Benamar, S. Dupont

In this article, the impact of incorporating quantum dots based on InxGa1-xAs into the intrinsic layer of a polycrystalline silicon solar cell has been modeled and simulated. This work was carried out under the following conditions: T = 300K and AM1.5G using the SILVACO software. The strain (є)…

Journal of the Indian Chemical Society, 2026, 103 (6), pp.102657. ⟨10.1016/j.jics.2026.102657⟩. ⟨hal-05624814⟩

Article dans une revue

Dirac cones and topological torsional modes in phononic nanowires using Su–Schrieffer–Heeger Model

Mohammed Elaouni, Noura Ezzahni, Soufyane Khattou, Madiha Amrani, Afaf Bouzidi, Abdellatif Gueddida, El Houssaine El Boudouti, Bahram Djafari-Rouhani

Topological materials have attracted significant attention due to their distinct edge states, known for their robustness to local perturbations. In the field of phononic crystals, these states manifest as topological surface or interface modes, offering promising applications in waveguiding and…

Ultrasonics, 2026, 162, pp.107975. ⟨10.1016/j.ultras.2026.107975⟩. ⟨hal-05675152⟩

Proceedings/Recueil des communications

Magnon-phonon coupling in magnetic materials

Mohamed Boutghatin, Noura Ezzahni, Abdelkrim Talbi, Othmane Marbouh, Yannick Dusch, Nicolas Tiercelin, El Houssaine El Boudouti, Olivier Bou Matar

The control of magnetism via acoustic waves has led to significant research activity, with the aim of paving the way for novel electronic and spintronic applications that are ultrafast, compact, and energy-efficient. This growing interest has stimulated the development of both experimental…

Spintronics and Nanomagnetism, Apr 2026, Strasbourg, France. SPIE, pp.10, 2026, ⟨10.1117/12.3106324⟩. ⟨hal-05639291⟩

Article dans une revue

N2200 based organic rectifying diodes for ambient electromagnetic energy harvesting

Khaoula Ferchichi, Kamal Lmimouni

Rectifying diodes are key components for electromagnetic energy-harvesting systems. Recently, organic diode have attract a lot of attention for this applications due to its low-cost, flexibily and easy disposability In this work, we report the fabrication and electrical characterization of n-type…

Synthetic Metals, 2026, 319, pp.118177. ⟨10.1016/j.synthmet.2026.118177⟩. ⟨hal-05646659⟩