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Affichage de 6861 à 6870 sur 16080

Chapitre d'ouvrage

Speech communication

Nicolas Côté, Jens Berger

The goal of any speech service is the transmission and/or processing of speech signals. In this chapter we discuss the Quality of Experience (QoE) of speech communication systems, including networks, speech processing applications and terminals. We then give an overview of the methods employed to...

Möller Sebastian, Raake Alexander (Eds.). Quality of experience - Advanced concepts, applications and methods, Springer International Publishing, Part II, chapter 12, 165-177, 2014, T-Labs Series in Telecommunication Services, ISBN 978-3-319-02680-0 ; e-ISBN 978-3-319-02681-7. ⟨10.1007/978-3-319-02681-7_12⟩. ⟨hal-00966229⟩

Article dans une revue

Magneto-transport subband spectroscopy in InAs nanowires

Florian Vigneau, Vladimir Prudkovskiy, Ivan Duchemin, Walter Escoffier, Philippe Caroff, Yann-Michel Niquet, Renaud Leturcq, Michel Goiran, Bertrand Raquet

We report on magnetotransport measurements in InAs nanowires under a large magnetic field (up to 55 T), providing a spectroscopy of the one-dimensional electronic band structure. Large modulations of the conductance mediated by a control of the Fermi energy reveal the Landau fragmentation, carrying...

Physical Review Letters, 2014, 112, 076801, 5 p. ⟨10.1103/PhysRevLett.112.076801⟩. ⟨hal-00959896⟩

Article dans une revue

High-definition television transmission at 600 GHz combining THz photonics hotspot and high-sensitivity heterodyne receiver

Guillaume Ducournau, Fabio Pavanello, Alexandre Beck, L. Tohme, S. Blin, P. Nouvel, Emilien Peytavit, Mohamed Zaknoune, P. Szriftgiser, Jean-Francois Lampin

A 600 GHz data transmission using the combination of a photonic emission using a uni-travelling carrier photodiode and an electronic detection is investigated. A high-definition television transmission at this carrier frequency with a very low power at the receiver is reported. Only 10 nW of...

Electronics Letters, 2014, 50 (5), pp.413-415. ⟨10.1049/el.2013.3796⟩. ⟨hal-00955223⟩

Communication dans un congrès

Design and radiation hardness of next generation solar UV radiometers

Samuel Gissot, Ali Benmoussa, Boris Giordanengo, Ali Soltani, Terubumi Saito, Udo Schühle, Udo Kroth, Alexander Gottwald

For next space-based ultraviolet (UV) solar radiometers, we propose a design based on subsystem components that are selected according to lessons learned from previous flying missions and ground irradiation campaigns. UV interference filters inherited from space-based solar missions show strong...

IEEE Nuclear and Space Radiation Effects Conference, NSREC 2014, 2014, Paris, France. paper W-24, 6 p. ⟨hal-01063876⟩

Communication dans un congrès

InAs/AlGaSb Esaki tunnel diodes grown by selective area epitaxy on GaSb (001) substrate

L. Desplanque, Xianglei Han, Maria Fahed, Vinay K. Chinni, David Troadec, M.-P. Chauvat, Pierre Ruterana, Xavier Wallart

We report on the realization of AlGaSb/InAs Esaki tunnel diodes on GaSb (001) substrate. Selective area molecular beam epitaxy of InAs is used to define the area of the diodes down to submicron dimensions. A peak current density up to 1.3 MA/cm2 is achieved.

26th International Conference on Indium Phosphide and Related Materials, IPRM 2014, Compound Semiconductor Week, CSW 2014, 2014, Montpellier, France. paper Mo-C1-6, 2 p., ⟨10.1109/ICIPRM.2014.6880530⟩. ⟨hal-01059835⟩

Communication dans un congrès

Broadband sound attenuation on a periodic array of rectangular profile holes in plate

Rayisa P. Moiseyenko, Yan Pennec, Rémi Marchal, Bernard Bonello, Bahram Djafari-Rouhani

Transmission of acoustic waves through a periodic array of sub-wavelength slits or holes have been studied in several recent works in relation with physical phenomena such as resonant (extraordinary) transmission, broadband sound shielding or acoustic induced transparency (AIT). In this work, we...

SPIE Smart Structures/NDE 2014, Conference 9057 - Active and Passive Smart Structures and Integrated Systems VIII, 2014, San Diego, CA, France. 90571Q, 6 p., ⟨10.1117/12.2044845⟩. ⟨hal-00969103⟩

Article dans une revue

Graphene nanotransistors for RF charge detection

E. Pallecchi, Q. Wilmart, A.C. Betz, S.H. Jhang, G. Fève, J.M. Berroir, Sylvie Lepilliet, Gilles Dambrine, H. Happy, B. Plaçais

We have studied the static and dynamical properties of a graphene microwave nanotransistor to be used as sensitive fast charge detectors. The channel consists of exfoliated graphene on SiO2 with a 120 nm long, 900-1500 nm wide top-gate deposited on 5 nm AlOx dielectric. The scattering parameters...

Journal of Physics D: Applied Physics, 2014, 47, 094004, 5 p. ⟨10.1088/0022-3727/47/9/094004⟩. ⟨hal-00946703⟩

Communication dans un congrès

A new optimal design method for electrostatically actuated silicon-based MEMS: Application to a micro-gripper with large stroke and high force resolution

A. Grira, C. Rotinat-Libersa, Bernard Legrand, L. Buchaillot

The design of Micro Electro Mechanical Systems (MEMS) is often based on the use of costly trial and error method which depends highly on the technical skills of the involved engineers. The drawback of such a procedure is to lead to sub-optimal designs and poor performance at the end. Some research...

1st International Conference on Engineering and Applied Sciences Optimization, OPT-i 2014, Jun 2014, Kos Island, Greece. pp.2407-2417. ⟨cea-01844451⟩

Article dans une revue

Two types of MEMS-based oscillating AFM probes

Zhuang Xiong, Estelle Mairiaux, Benjamin Walter, Marc Faucher, Lionel Buchaillot, Bernard Legrand

Most of the commercial Atomic Force Microscope ( AFM) oscillating probes are based on micro-scale cantilevers enabling measurement with pico-Newton force resolution in vacuum. However, the cantilever probes suffer from a degradation of both resonance frequency and quality factor when operating in...

Journal of Chinese Electron Microscopy Society , 2014, 2, pp.137-141. ⟨hal-01960910⟩

Communication dans un congrès

Direct path detection algorithm in multiple input single output configuration for transport applications

Kobenan Ignace Kossonou, Yassin El Hillali, Michael Bocquet, Atika Rivenq, Jamal Assaad

This paper introduces a novel technique that exploits cross-correlation properties of near-orthogonal pseudonoise (PN) codes to estimate the time of arrival of the direct path signal for Multiple Input Single Output (MISO) applications. Indeed, multipath are a source of error in the time...

2014 IEEE International Conference on Ultra-WideBand, ICUWB 2014, Sep 2014, Paris, France. pp.438-443, ⟨10.1109/ICUWB.2014.6959022⟩. ⟨hal-03528685⟩