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Affichage de 5011 à 5020 sur 16064

Article dans une revue

Pressure-driven dynamics of liquid plugs in rectangular microchannels: influence of the transition between quasi-static and dynamic film deposition regimes

Stéphanie Signe Mamba, Farzam Zoueshtiagh, Michael Baudoin

In this paper, we study experimentally and theoretically the dynamics of liquid plugs in rectangular microchannels for both unidirectional and cyclic pressure forcing. In both cases, it is shown that the transition between quasi-static and dynamic film deposition behind the liquid plug leads to a…

International Journal of Multiphase Flow, 2018, ⟨10.1016/j.ijmultiphaseflow.2018.10.019⟩. ⟨hal-01700295v2⟩

Communication dans un congrès

Magnonic analogue of electromagnetic induced transparency in detuned magnetic circuit

Abdelkader Mouadili, El Houssaine El Boudouti, Housni Al-Wahsh, Abdellatif Akjouj, Bahram Djafari-Rouhani, L. Dobrzynski

A simple magnetic device consisting of two dangling side stubs grafted at the same site along a waveguide is designed to obtain a magnonic analogue of electromagnetic induced transparency (EIT) resonance. By detuning the lengths of the two stubs, a resonance can be squeezed between two transmission…

3rd International Conference on Electrical and Information Technologies, ICEIT 2017, Nov 2017, Rabat, Morocco. pp.1-5, ⟨10.1109/EITech.2017.8255227⟩. ⟨hal-03508198⟩

Communication dans un congrès

Wireless Sensor Network used to improve the energy efficiency in connected railway vehicles

Ulrich Biaou, Michael Bocquet, Atika Rivenq, Sara Iben Jellal, S. Baranowski

This paper presents a solution using Zigbee network for improving energy efficiency inside railway vehicles, especially for suburban train and metro. We present firstly a comparison between existing wireless technologies and the choice for our platform. The simulation tools simuEM3D has been used…

30th International Conference on Microelectronics, ICM 2018, Dec 2018, Sousse, Tunisia. pp.72-75, ⟨10.1109/ICM.2018.8704086⟩. ⟨hal-03528695⟩

Article dans une revue

VOCs monitoring using differential microwave capacitive resonant transducer and conductive PEDOT:PSS-MWCNTs nanocomposite film for environmental applications

Prince Bahoumina, Hamida Hallil-Abbas, Jean-Luc Lachaud, Aymen Abdelghani, Kamel Frigui, Stéphane Bila, Dominique Baillargeat, Qing Zhang, Philippe Coquet, Carlos Alberto Paragua, Emmanuelle Pichonat, Henri Happy, Dominique Rebière, Corinne Dejous

This paper presents the feasibility of a low-cost fully inkjet printed capacitive microwave flexible gas sensor based on a resonant electromagnetic transducer in micro-strip technology with poly (3,4-ethylenedioxythiophene) polystyrene sulfonate and multi wall carbon nanotubes (PEDOT:PSS-MWCNTs) as…

IEEE Transactions on Nanotechnology, 2018, pp.1-15. ⟨10.1109/TNANO.2018.2828302⟩. ⟨hal-01773210⟩

Article dans une revue

Digital complex delta-sigma modulators with highly configurable notches for multi-standard coexistence in wireless transmitters

Razvan-Cristian Marin, Antoine Frappé, Andreas Kaiser

This paper presents a complex delta-sigma modu-lator (CDSM) designed for integration in a digital transmitter chain targeting multi-standard coexistence with nearby receivers. The use of a DSM has the advantage of increased performance in terms of signal-to-noise-ratio in the band of interest.…

IEEE Transactions on Circuits and Systems I: Regular Papers, 2018, 65 (1), pp.343-352. ⟨10.1109/TCSI.2017.2711035⟩. ⟨hal-02314482⟩

Article dans une revue

Surface acoustic waves in one-dimensional piezoelectric-metallic phononic crystal: Effect of a cap layer

M. Alami, E. H. El Boudouti, Bahram Djafari-Rouhani, Y. El Hassouani, Abdelkrim Talbi

We study the propagation of transverse acoustic waves associated with the surface of a semi-infinite superlattice (SL) composed of piezoelectric-metallic layers and capped with a piezoelectric layer. We present closed-form expressions for localized surface waves, the so-called Bleustein-Gulyaev (BG…

Ultrasonics, 2018, 90, pp.80-97. ⟨10.1016/j.ultras.2018.06.010⟩. ⟨hal-03183475⟩

Article dans une revue

Thin-film adhesion characterization by Colored Picosecond Acoustics

Arnaud Devos, P. Emery

This paper presents some applications of a recent technique so-called the Colored Picosecond Acoustics (APiC) to the characterization of complex stacks of thin films. The technique is a unique combination of optics and acoustics that implements an acoustic pulse-echo technique at the nanoscale…

Surface and Coatings Technology, 2018, 352, pp.406-410. ⟨10.1016/j.surfcoat.2018.07.097⟩. ⟨hal-03183488⟩

Communication dans un congrès

Test de susceptibilité de communication LTE face aux interférences produites par le contact caténaire-pantographe

Olivier Stienne, Virginie Deniau, Eric Pierre Simon, Mohamed Raouf Kousri

Les transports ferroviaires doivent continuellement évoluer pour conserver une bonne attractivité. En particulier, les services offerts à bord des trains doivent apporter un bon niveau de confort aux passagers. Dans ce contexte, les opérateurs veulent permettre un accès à internet de qualité à bord…

CEM 2018, 19ème Colloque International et Exposition sur la Compatibilité ÉlectroMagnétique, Jul 2018, Paris, France. 6p. ⟨hal-02315743⟩

Article dans une revue

Addressing the exciton fine structure in colloidal nanocrystals: the case of CdSe nanoplatelets

Elena V Shornikova, Louis Biadala, Dmitri R Yakovlev, Victor F Sapega, Yuri G Kusrayev, Anatolie Mitioglu, Mariana V Ballottin, Peter C M Christianen, Vasilii V Belykh, Mikhail V Kochiev, Nikolai N Sibeldin, Aleksandr A Golovatenko, Anna V Rodina, Nikolay A Gippius, Alexis Kuntzmann, Ye Jiang, Michel Nasilowski, Benoit Dubertret, Manfred Bayer

We study the band-edge exciton fine structure and in particular its bright-dark splitting in colloidal semiconductor nanocrystals by four different optical methods based on fluorescence line narrowing and time-resolved measurements at various temperatures down to 2 K. We demonstrate that all these…

Nanoscale, 2018, 10 (2), pp.646-656. ⟨10.1039/C7NR07206F⟩. ⟨hal-02394900⟩

Article dans une revue

Toward a better understanding of the doping mechanism involved in Mo(tfd-COCF3)(3) doped PBDTTT-c

J. Euvrard, A. Revaux, S. S. Nobre, A. Kahn, Dominique Vuillaume

In this study, we aim to improve our understanding of the doping mechanism involved in the polymer poly[(4,8-bis-(2-ethylhexyloxy)-benzo(1,2-b:4,5-b')dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene-)-2-6-diyl)] (PBDTTT-c) doped with tris[1-(trifluoroethanoyl)-2-(…

Journal of Applied Physics, 2018, 123 (22), pp.22550. ⟨10.1063/1.5029810⟩. ⟨hal-03183498⟩