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Affichage de 2691 à 2700 sur 16378

  • Thèse

Thermal interface : High thermal conductivity phase change materials for thermal management in high power electronic devices, Interface Thermique : Matériaux à changement de phase à haute conductivité thermique pour le management thermique des composants électroniques de puissance

Romain Hubert

Phase Change Material (P C M) have been widely used for thermal energy storage due to their highlatent heat of fusion for thermal management applications. However, P C M suffer from their verylow thermal conductivity which limits heat spreading around the heat source. Without properthermal…, Les matériaux à changement de phase (P C M) sont largement utilisés du fait de leur forte chaleur latente de fusion pour des applications de management thermique. Malgré cela, les P C M pâtissent de leur faible conductivité thermique qui limite la propagation de la chaleur autour de la source.Sans…

Electronics. Centrale Lille Institut, 2022. English. ⟨NNT : 2022CLIL0001⟩. ⟨tel-04002579⟩

  • Article dans une revue

A perspective on elastic metastructures for energy harvesting

Zhihui Wen, Wan Wang, Abdelkrim Khelif, Bahram Djafari-Rouhani, Yabin Jin

Rapid advances have been made in the properties of metastructures, including phononic crystals, metamaterials, and metasurfaces, with respect to their robustness, high power density, and broadband behavior. This presents unique advantages for energy harvesting devices to meet the demands for…

Applied Physics Letters, 2022, 120 (2), pp.020501. ⟨10.1063/5.0078740⟩. ⟨hal-03596148⟩

  • Article dans une revue

Strong and weak polarization-dependent interactions in connected and disconnected plasmonic nanostructures

Damien Eschimèse, François Vaurette, Céline Ha, Steve Arscott, Thierry Mélin, Gaëtan Lévêque

We explore numerically and experimentally the formation of hybridized modes between a bright mode displayed by a gold nanodisc and either dark or bright modes of a nanorod – both elements being either separated by a nanometer-size gap (disconnected system) or relied on a metal junction (connected…

Nanoscale Advances, 2022, 4, pp.1173-1181. ⟨10.1039/D1NA00620G⟩. ⟨hal-03561511⟩

  • Article dans une revue

Stochastic Geometry-based Analysis of the Impact of Underlying Uncorrelated IoT Networks on LoRa Coverage

Romain Chevillon, Guillaume Andrieux, Laurent Clavier, Jean-François Diouris

IoT networks are more and more present nowadays. Some IoT protocols share the samebandwidth leading to interference on neighboring networks and decrease of overall coverage. To contributeto this problem, an analytical study of the coverage of a LoRa network with underlying uncoordinatedIoT networks…

IEEE Access, 2022, 10, pp.8790-8803. ⟨10.1109/ACCESS.2022.3141540⟩. ⟨hal-03520374⟩

  • Communication dans un congrès

Rayleigh Modes Generated by Laser-Ultrasonics at the Film-Substrate Interface for the Study of Adhesion

Martin Robin, Meriem Chrifi Alaoui, Frédéric Jenot, Mohammadi Ouaftouh, Marc Duquennoy

Adhesion testing of film-on-substrate structures by surface acoustic waves is a complex issue. Indeed, the fluctuations of some parameters like the film thickness can lead to misinterpretation of the experimental results. Additionally, in laser-ultrasonics, the positions of the generation and…

16ème Congrès Français d'Acoustique, CFA 2022, Société Française d'Acoustique; Laboratoire de Mécanique et d'Acoustique, Apr 2022, Marseille, France. ⟨hal-03688151v2⟩

  • Article dans une revue

State of the Art of Chemosensors in a Biomedical Context

Erich Kny, Ciril Reiner-Rozman, Jakub Dostalek, Achim-Walter Hassel, Christa Nöhammer, Florian Pfaffeneder-Mantai, Sabine Szunerits, Viktoria Weber, Wolfgang Knoll, Christoph Kleber

Healthcare is undergoing large transformations, and it is imperative to leverage new technologies to support the advent of personalized medicine and disease prevention. It is now well accepted that the levels of certain biological molecules found in blood and other bodily fluids, as well as in…

Chemosensors, 2022, 10 (6), pp.199. ⟨10.3390/chemosensors10060199⟩. ⟨hal-03681612⟩

  • Article dans une revue

In-plane InGaAs/Ga(As)Sb nanowire based tunnel junctions grown by selective area molecular beam epitaxy

Alexandre Bucamp, Christophe Coinon, Sylvie Lepilliet, David Troadec, Gilles Patriarche, M Diallo, Vanessa Avramovic, Kamel Haddadi, X. Wallart, L. Desplanque

In-plane InGaAs/Ga(As)Sb heterojunction tunnel diodes are fabricated by selective area molecular beam epitaxy with two different architectures: either radial InGaAs core/Ga(As)Sb shell nanowires or axial InGaAs/GaSb heterojunctions. In the former case, we unveil the impact of strain relaxation and…

Nanotechnology, 2022, 33 (14), pp.145201. ⟨10.1088/1361-6528/ac45c5⟩. ⟨hal-03547003⟩

  • Communication dans un congrès

Mise en œuvre de capteurs RF-MEMS acoustiques pour l’industrie 4.0

Yannick Dusch, Cécile Ghouila-Houri, Aurélien Mazzamurro, Ghizlane Boussatour, Hatem Dahmani, Olivier Bou Matar, Vincent Maurice, Philippe Pernod, Abdelkrim Talbi

Cette étude propose la conception complète d’un système de suivi à distance des sollicitations mécaniques dans les machines électriquesafin de répondre aux problématiques de l’industrie 4.0 et de la maintenance prédictive. Elle s’appuie sur la conception, la fabrication et la caractérisation de…

16emes journées pédagogiques du CNFM, JPCNFM’2021, CNFM, Dec 2021, Saint-Malo, France. 6 p., J3eA Hors-série 1 - Actes JPCNFM’2021, Volume 21 (2022), ⟨10.1051/j3ea/20221019⟩. ⟨hal-03464507⟩

  • Communication dans un congrès

Unsupervised deep learning to solve power allocation problems in cognitive relay networks

Yacine Benatia, Anne Savard, Romain Negrel, Elena Veronica Belmega

In this paper, an unsupervised deep learning approach is proposed to solve the constrained and non-convex Shannon rate maximization problem in a relay-aided cognitive radio network. This network consists of a primary and a secondary user-destination pair and a secondary full-duplex relay performing…

IEEE International Conference on Communications Workshops, ICC Workshops 2022, May 2022, Séoul, South Korea. ⟨10.1109/ICCWorkshops53468.2022.9814541⟩. ⟨hal-03534545v4⟩

  • Chapitre d'ouvrage

Chapter 3. Surface modification of silicon nanowires for biosensing

Yannick Coffinier, Rabah Boukherroub

Silicon nanowires (Si NWs) are one of the most important one-dimensional semiconductors, partly due to their ready implementation in modern technology. As sensing applications using Si NWs increase, it is necessary to have well-defined chemical attachment schemes that will provide the desired…

Semiconducting Silicon Nanowires for Biomedical Applications, Elsevier, pp.25-68, 2022, A volume in Woodhead Publishing Series in Biomaterials, ISBN 978-0-12-821351-3. ⟨10.1016/B978-0-12-821351-3.00017-3⟩. ⟨hal-03663951⟩