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Affichage de 4881 à 4890 sur 16434

  • Article dans une revue

Evaporation behavior of PEGylated graphene oxide nanofluid droplets on heated substrate

Pin Chen, Souad Harmand, Sabine Szunerits, Rabah Boukherroub

In this study, the evaporation behavior of graphene nanofluid droplets deposited on sapphire substrate was investigated in the temperature range from ambient to 106 °C. The evaporation process and the thermal mapping on the air/liquid interface of the droplets were recorded by side-view CCD camera...

International Journal of Thermal Sciences, 2019, 135, pp.445-458. ⟨10.1016/j.ijthermalsci.2018.06.030⟩. ⟨hal-02373242⟩

  • Communication dans un congrès

22nm ultra-thin body and buried oxide FDSOI RF noise performance

Ousmane Kane, Luca Lucci, Pascal Scheiblin, Sylvie Lepilliet, Francois Danneville

The drastic downscaling of the transistor size along with advances in material sciences allowed the development of low power CMOS technologies with competitive RF figure of merits suitable for millimeter applications. In this context, this paper presents the RF and noise characterization (up to 110...

IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Jun 2019, Boston, United States. ⟨10.1109/RFIC.2019.8701740⟩. ⟨hal-03272699⟩

  • Communication dans un congrès

Multiple antenna receiver under impulsive SαS noise

Nicolas de Araujo Moreira, Laurent Clavier

In a usual MIMO framework when noise is assumed Gaussian, the channel matrix can be estimated with a Least Square approach. In addition, the Euclidean distance is optimal to detect the transmitted symbol. However, in dynamic interference, the Gaussian assumption is no longer valid. In this case,...

WCNC 2019, 17th IEEE Wireless Communications and Networking Conference, Apr 2019, Marrakech, Morocco. 6 p., ⟨10.1109/WCNC.2019.8885790⟩. ⟨hal-03270115⟩

  • Communication dans un congrès

Nano-particle mass sensing using phononic pillars

Bonhomme Jeremy, Oudich Mourad, Bahram Djafari-Rouhani, Sarry Frederic, Yan Pennec, Bonello Bernard, Beyssen Denis, Paul Charette

In this work, we investigate the sensitivity of a pillar based metasurface in order to understand the behavior of the system in real tests conditions where the mass perturbation will not be homogeneous on all the system. The structure we study is composed in stacking alternate layers of Silica and...

IEEE International Ultrasonics Symposium, IUS 2019, Oct 2019, Glasgow, United Kingdom. pp.844-846, ⟨10.1109/ULTSYM.2019.8925763⟩. ⟨hal-03178711⟩

  • Communication dans un congrès

Développement de solutions hyperfréquences pour la société moderne: bio-radar et microscopie électromagnétique

Kamel Haddadi, D. Szymik, Virginie Hoel, Gilles Dambrine

Cet article décrit le projet de fin d’étude mis au point au sein du Master Réseaux et Télécommunications parcours SYSCOM (Systèmes Communicants) de l’Université de Lille. Le projet vise à développer des solutions hyperfréquences pour la ville intelligente (Smart City). Les développements techniques...

15èmes Journées Pédagogiques du CNFM, JPCNFM 2018, Nov 2018, Saint-Malo, France. 1013, 9 p., ⟨10.1051/j3ea/20191013⟩. ⟨hal-03340538⟩

  • Communication dans un congrès

Plasmon induced transparency in graphene-based side coupled two rectangular nano-cavities-like structures

A. Noual, M. Amrani, E.H. El Boudouti, Yan Pennec, Bahram Djafari-Rouhani

We investigate numerically the plasmon analogue of electromagnetic induced transparency (EIT) in a compact graphene-based waveguide coupled to two rectangular nano-cavities-like structures made out of graphene nanoribbons. The cavities are placed symmetrically on each side of the bus waveguide,...

2018 International Conference on Materials and Environmental Science, ICMES 2018, Apr 2018, Saidia, Morocco. pp.1076-1083, ⟨10.1016/j.matpr.2019.04.074⟩. ⟨hal-03508191⟩

  • Article dans une revue

High performance and highly robust AlN/GaN HEMTs for millimeter-wave operation

Kathia Harrouche, Riad Kabouche, Etienne Okada, F Medjdoub

We report on a 3 nm AlN/GaN HEMT technology for millimeter-wave applications. Electrical characteristics for a 110 nm gate length show a maximum drain current density of 1.2 A/mm, an excellent electron confinement with a low leakage current below 10 μA/mm, a high breakdown voltage and a F T /F max...

IEEE Journal of the Electron Devices Society, 2019, 7, pp.1145-1150. ⟨10.1109/JEDS.2019.2952314⟩. ⟨hal-02357492⟩

  • Article dans une revue

Plasmon-Induced Electrocatalysis with Multi-Component Nanostructures

Palaniappan Subramanian, Dalila Meziane, Robert Wojcieszak, Franck Dumeignil, Rabah Boukherroub, Sabine Szunerits

Noble metal nanostructures are exceptional light absorbing systems, in which electron–hole pairs can be formed and used as “hot” charge carriers for catalytic applications. The main goal of the emerging field of plasmon-induced catalysis is to design a novel way of finely tuning the activity and...

Materials, 2019, Materials, 12 (1), pp.43. ⟨10.3390/ma12010043⟩. ⟨hal-02309136⟩

  • Article dans une revue

Electromagnetic physical modeling of a gallium nitride distributed transferred electron device based planar waveguide structure THz oscillator

Christophe Dalle

The potential of a planar waveguide structure terahertz oscillator based on a gallium nitride distributed transferred electron device is theoretically investigated. The circuit numerical physical modeling relies on a two-dimensional time-domain electromagnetism/transport simulator. It is based on...

Advanced Electromagnetics, 2019, 8 (4), pp.89-102. ⟨10.7716/aem.v8i4.1214⟩. ⟨hal-02395343⟩

  • Article dans une revue

Sensitivity to Dispersion Forces in First-Principles Modeling of Disordered Chalcogenides

Carlo Massobrio, Évelyne Martin, Ziyad Chaker, Mauro Boero, Assil Bouzid, Sébastien Le Roux, Guido Ori

The inclusion of dispersion (van der Waals, vdW) forces in first-principles modeling of disordered chalcogenides is analyzed and critically discussed in view of their impact on the atomic structure. To this purpose we considered the case of glassy GeTe4. We selected a vdW correction (termed vdWG...

Frontiers in Materials. Computational Materials Science section, 2018, 5, ⟨10.3389/fmats.2018.00078⟩. ⟨hal-02312708⟩