Publications

Affichage de 6271 à 6280 sur 16058

ART

Theoretical and experimental analyses of tunable Fabry-Perot resonators using piezoelectric phononic crystals

Marie-Fraise Ponge, Bertrand Dubus, Christian Granger, Jerome O. Vasseur, Mai Pham Thi, Anne-Christine Hladky

Theoretical and experimental analyses of piezoelectric stacks submitted to periodical electrical boundary conditions via electrodes are conducted. The presented structures exhibit Bragg band gaps that can be switched on or off by setting electrodes in short or open circuit. The band gap frequency…

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2015, 62 (6), pp.1114-1121. ⟨10.1109/TUFFC.2014.006919⟩. ⟨hal-03300133⟩

COMM

Time-Frequency Processing Adapted for the Different Electromagnetic Compatibility Issues in the Railway Domain

Mohammed Raouf Kousri, Virginie Deniau, Marc Heddebaut, S. Baranowski, Jean Rioult

The railway environment is very rich in terms of electromagnetic disturbances. The variety of the transient and permanent interferences and the current evolution of the communication and signaling railway systems require the adaptation of EMC railway standards. In particular, standardized emission…, L'environnement électromagnétique du chemin de fer est très riche en termes de perturbations électromagnétiques. La variété des signaux transitoires et des interférences permanentes et l'évolution actuelle des systèmes de communication et de signalisation ferroviaire nécessitent l'…

EMC 2015, Joint IEEE International Symposium on Electromagnetic Compatibility and EMC Europe, Aug 2015, Dresden, Germany. 6p, ⟨10.1109/ISEMC.2015.7256353⟩. ⟨hal-01471551⟩

COMM

Near-field scanning microwave microscope for subsurface non-destructive characterization

Sijia Gu, Kamel Haddadi, Abdelhatif El Fellahi, Tuami Lasri

We report a nondestructive testing system based on near-field scanning microwave microscopy. The instrumentation is built up with a vector network analyzer, a fully automated tuning matching network and an evanescent microwave probe. The system can perform microwave images in the frequency band 0.1…

45th European Microwave Conference (EuMC), Sep 2015, Paris, France. pp.155-158, ⟨10.1109/EuMC.2015.7345723⟩. ⟨hal-03224667⟩

COMM

Experimental Study of Multilayer Piezo-magnetic SAW Delay Line for Magnetic Sensor

Meriem Elhosni, Sébastien Petit-Watelot, Michel Hehn, Sami Hage-Ali, Keltouma Ait Aissa, Daniel Lacour, Abdelkrim Talbi, Omar Elmazria

<div><p>This communication describes an experimental study of multilayer piezo-magnetic acoustic wave devices used as sensors of external magnetic fields applied in plane, parallel or perpendicular to the direction of the acoustic wave propagation direction. The considered device…

Eurosensors 2015, Sep 2025, Freiburg (Allemagne), France. pp.870 - 873, ⟨10.1016/j.proeng.2015.08.743⟩. ⟨hal-05415947⟩

ART

Kinetic proofreading of chromatin remodeling: from gene activation to gene repression and back

Raghvendra Singh, Guillaume Brysbaert, Marc Lensink, Fabrizio Cleri, Ralf Blossey

ATP-dependent chromatin remodeling is the active displacement of nucleosomes along or off DNA induced by chromatin remodeling complexes. This key process of gene regulation in eukaryote organisms has recently been argued to be controlled by a kinetic proofreading mechanism. In this paper we present…

AIMS Biophysics, 2015, 2 (4), pp.398-411. ⟨10.3934/biophy.2015.4.398⟩. ⟨hal-03285276⟩

COMM

QAM-32/0.588 THz communication using electronic Schottky transceivers

Guillaume Ducournau, Pascal Szriftgiser, Denis Bacquet, Emilien Peytavit, Mohammed Zaknoune, Rédha Kassi, Jean-Francois Lampin

We report on THz communication system using vectorial modulations schemes above 500 GHz. Using schottky-based electronic technologies at 588 GHz, potentialities of high-level multi-carrier modulation schemes for wireless links are analyzed. The wireless link is composed of an emitter with sub-…

40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Aug 2015, Hong Kong, Hong Kong SAR China. ⟨10.1109/IRMMW-THz.2015.7327665⟩. ⟨hal-03286182⟩

ART

A Unified Explanation of gm /ID -Based Noise Analysis

Jack Ou, Pietro Maris Ferreira

We present an unified explanation of the transconductance-to-drain current (gm/ID)-based noise analysis in this paper. We show that both thermal noise coefficient (γ) and device noise corner frequency (fco) are dependent on the gm/ID of a transistor. We derive expressions to demonstrate the…

Journal of Circuits, Systems, and Computers, 2015, 24 (1), pp.1550010. ⟨10.1142/S0218126615500103⟩. ⟨hal-01222077⟩

COMM

0.69 THz room temperature heterodyne detection using GaN nanodiodes

Carlos Daher, Jeremie Torres, Ignacio Iñiguez-De-La-Torre, Philippe Nouvel, Luca Varani, Paul Sangaré, Guillaume Ducournau, Christophe Gaquière, Javier Mateos, And Tomás González

GaN-based asymmetric nanodiodes have been used as heterodyne detectors up to 0.69 THz in free-space configuration where Intermediate Frequency bandwidth has been measured up 13 GHz. Monte Carlo simulations, used to estimate nano-device intrinsic conversion losses of 27 dB have confirmed these…

19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures, 2015, Salamanca, Spain. ⟨10.1088/1742-6596/647/1/012006⟩. ⟨hal-01920765⟩

COMM

When capacitive transduction meets the thermomechanical limit: Towards femto-newton force sensors at very high frequency

S. Houmadi, Bernard Legrand, J.P. Salvetat, B. Walter, E. Mairiaux, J.P. Aime, D. Ducatteau, P. Merzeau, L. Buisson, J. Elezgaray, Didier Theron, Marc Faucher

We show that the capacitive transduction of a MEMS device using a setup based on a microwave detection scheme achieves the measurement of the thermomechanical noise spectrum of a high-frequency (>10 MHz) high-stiffness (>10 5 N/m) resonator, reaching the outstanding displacement resolution of…

28th IEEE Conference on Micro Electro Mechanical Systems, MEMS 2015, Jan 2015, Estoril, Portugal. ⟨10.1109/MEMSYS.2015.7050908⟩. ⟨hal-01962374⟩

ART

Drift velocity versus electric field in < 110 > Si nanowires: Strong confinement effects

Jing Li, Gabriel Mugny, Yann-Michel Niquet, Christophe Delerue

We have performed atomistic simulations of the phonon-limited high field carrier transport in < 110 > Si nanowires with small diameter. The carrier drift velocities are obtained from a direct solution of the non-linear Boltzmann transport equation. The relationship between the drift velocity…

Applied Physics Letters, 2015, 107 (6), pp.063103. ⟨10.1063/1.4928525⟩. ⟨hal-01615208⟩