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Affichage de 1541 à 1550 sur 16076

Article dans une revue

Dielectric and optical properties of superlattices of epitaxially connected nanocrystals

Christophe Delerue, P. Tim Prins, Daniel Vanmaekelbergh, Zeger Hens

Colloidal semiconductor nanocrystals (NCs) are believed to strongly absorb resonant light; this property is key to ongoing applications of NCs as phosphor in light-emitting diodes (LEDs) for lighting, in displays, and photodetectors. However, it has been realized that NCs in a low dielectric medium...

Physical Review B, 2023, 107 (24), pp.245413. ⟨10.1103/PhysRevB.107.245413⟩. ⟨hal-04126088⟩

Article dans une revue

Deep learning-based hard spatial attention for driver in-vehicle action monitoring

Imen Jegham, Ihsen Alouani, Anouar Ben Khalifa, Mohamed Ali Mahjoub

Distracted driving is one of the main causes of deaths and injuries in the world. Monitoring driver behaviors through Driver Action Recognition (DAR) contributes significantly to building safer transportation systems. However, in naturalistic driving settings, this task is complex and challenging...

Expert Systems with Applications, 2023, 219, pp.119629. ⟨10.1016/j.eswa.2023.119629⟩. ⟨hal-03997332⟩

Article dans une revue

Sensor Sensitivity Based on Exceptional Points Engineered via Synthetic Magnetism

S.R. Mbokop Tchounda, P. Djorwé, S.G. Nana Engo, B. Djafari-Rouhani

An efficient mass sensor based on exceptional points (EPs), engineered under a synthetic magnetism requirement, is proposed. The benchmark system consists of an electromechanical (optomechanical) system where an electric (optical) field is driving two mechanical resonators that are mechanically...

Physical Review Applied, 2023, 19 (6), pp.064016. ⟨10.1103/PhysRevApplied.19.064016⟩. ⟨hal-04187958⟩

Article dans une revue

Bus network decomposition for fault detection and isolation through power line communication

Abdel Karim Abdel Karim, M. Amine Atoui, Virginie Degardin, Pierre Laly, Vincent Cocquempot

This paper deals with fault detection and isolation (FDI) in complex embedded wired communication networks. The considered faults are soft faults which do not prevent the communication, but may evolve into hard faults, i.e. short or open circuit. A novel FDI method based on power line communication...

ISA Transactions, 2023, 137, pp.492-505. ⟨10.1016/j.isatra.2023.01.023⟩. ⟨hal-03955854⟩

Article dans une revue

UTD-Based Ray-Tracing MIMO Channel Modeling for the Next-Generation Communications Within Underground Tunnels

Mohamad Ghaddar, José-María Molina-García-Pardo, Ismail Ben Mabrouk, Martine Lienard, Pierre Degauque

Limited work has previously been conducted into deterministic modeling of the fifth generation (5G) millimeter (mm)-wave wireless communications within geometrically nonuniform tunnels. This study predicts and analyzes broadband multiple–input multiple–output (MIMO) propagation in underground mine...

IEEE Transactions on Antennas and Propagation, 2023, 71 (6), pp.5235-5245. ⟨10.1109/TAP.2023.3262639⟩. ⟨hal-04196828⟩

Article dans une revue

Elastic and thermo-elastic characterizations of thin resin films using colored picosecond acoustics and spectroscopic ellipsometry

Arnaud Devos, Fabrice Chevreux, Christophe Licitra, Asma Chargui, Laurent-Luc Chapelon

Colored Picosecond Acoustics (CPA) and Spectroscopic Ellipsometry (SE) are combined to measure elastic and thermoelastic properties of polymer thin-film resins deposited on 300 mm wafers. Film thickness and refractive index are measured using SE. Sound velocity and thickness are measured using CPA...

Photoacoustics, 2023, 31, pp.100498. ⟨10.1016/j.pacs.2023.100498⟩. ⟨hal-04080734⟩

Article dans une revue

Efficient mitigation of railway induced vibrations using seismic metamaterials

Slimane Ouakka, Abdellatif Gueddida, Yan Pennec, Bahram Djafari-Rouhani, Georges Kouroussis, Olivier Verlinden

AbstractThe fast growth of railway transport pushed by its sustainability requires all railway stakeholders to work together to minimise any possible drawbacks that might slow down this positive trend. Among these, the induced vibrations generated at the wheel–rail interaction during train passage...

Engineering Structures, 2023, 284, pp.115767. ⟨10.1016/j.engstruct.2023.115767⟩. ⟨hal-04053353⟩

Article dans une revue

Reduction of helium permeation in microfabricated cells using aluminosilicate glass substrates and Al2O3 coatings

Clément Carlé, Shervin Keshavarzi, Andrei Mursa, Petri Karvinen, Ravinder Kumar Chutani, Sylwester Bargiel, Samuel Queste, Rémy Vicarini, Philippe Abbé, Moustafa Abdel Hafiz, Vincent Maurice, Rodolphe Boudot, Nicolas Passilly

The stability and accuracy of atomic devices can be degraded by the evolution of their cell inner atmosphere. Hence,<br /&gt the undesired entrance or leakage of background or buffer gas, respectively, that can permeate through the cell walls,<br /&gt should be slowed down. In this...

Journal of Applied Physics, 2023, 133, pp.214501 (7). ⟨10.1063/5.0151899⟩. ⟨hal-04224507⟩

Article dans une revue

Optimized emitter-base interface cleaning for advanced Heterojunction Bipolar Transistors

E. Brezza, F. Deprat, C. de Buttet, A. Gauthier, M. Gregoire, D. Guiheux, V. Guyader, M. Juhel, I. Berbezier, E. Assaf, L. Favre, P. Chevalier, Christophe Gaquière, N. Defrance

A B S T R A C T Heterojunction Bipolar Transistors needed for high-frequency applications require precise dopant control. Insitu doped epitaxies used during device fabrication rely on surface preparation to obtain an optimized doping profile. Defects due to imperfect cleaning relates to high...

Solid-State Electronics, 2023, 204, pp.108654. ⟨10.1016/j.sse.2023.108654⟩. ⟨hal-04084450⟩

Autre publication scientifique

Front cover of the Journal of Micromechanics and Microengineering (IOP)

S. Arscott

The front cover refers to the article 'Quantifying and correcting tilt-related positioning errors in microcantilever-based microelectromechanical systems probes

2023. ⟨hal-04286307⟩