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Affichage de 1571 à 1580 sur 16106

  • 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

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⟩

  • 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⟩

  • 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⟩

  • Article dans une revue

Numerical and Experimental Evaluation of the Critically Refracted Longitudinal Waves (LCR) Beam Profile Generated by a Transducer

W. Djerir, T. Boutkedjirt, Mohamed Ourak, R. Halimi, A. Rezzoug, F. Rekbi, A. Allag

Due to its advantageous properties, the critically refracted longitudinal waves (LCR) are used in various fields of nondestructive evaluation, especially for residual stress measurements. However, although many researches use these waves, the characteristics of the LCR beams are not completely…

Defektoskopiya / Russian Journal of Nondestructive Testing, 2023, 59 (6), pp.654-664. ⟨10.1134/S1061830923600272⟩. ⟨hal-04243735⟩

  • Article dans une revue

Mesoscopic Klein-Schwinger effect in graphene

A. Schmitt, P. Vallet, D. Mele, Michael Rosticher, T. Taniguchi, K. Watanabe, E. Bocquillon, G. Fève, Jean-Marc Berroir, Christophe Voisin, J. Cayssol, M. Goerbig, J. Troost, E. Baudin, Bernard Plaçais

Strong electric field annihilation by particle–antiparticle pair creation, also known as the Schwinger effect, is a non-perturbative prediction of quantum electrodynamics. Its experimental demonstration remains elusive, as threshold electric fields are extremely strong and beyond current reach.…

Nature Physics, 2023, 19 (6), pp.830-835. ⟨10.1038/s41567-023-01978-9⟩. ⟨hal-04035853v2⟩

  • Article dans une revue

Follow-up investigation into Cryptosporidium prevalence and transmission in Western European dairy farms

Sumaiya Hoque, Pedro Pinto, Cláudia Ribeiro, Evi Canniere, Yvonne Daandels, Martine Dellevoet, Anne-Marie Bourgeois, Ourida Hammouma, Paul Hunter, Eleni Gentekaki, Martin Kváč, Jérôme Follet, Anastasios Tsaousis

Abstract Cryptosporidium parvum is an enteric parasite and a major contributor to acute enteritis in calves worldwide, causing an important economic burden for farmers. This parasite poses a major public health threat through transmission between livestock and humans. Our previous pilot study in…

Veterinary Parasitology, 2023, 318, pp.109920. ⟨10.1016/j.vetpar.2023.109920⟩. ⟨hal-04079642⟩

  • 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⟩