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Affichage de 3361 à 3370 sur 16064

Article dans une revue

Topological states in twisted pillared phononic plates

Yabin Jin, Wan Wang, Zhihui Wen, Daniel Torrent, Bahram Djafari-Rouhani

In recent years, the advances in topological insulator in the fields of condensed matter have been extended to classical wave systems such as acoustic and elastic waves. However, the quantitative robustness study of topological states which is indispensable in practical realization is rarely…

Extreme Mechanics Letters, 2020, 39, pp.100777. ⟨10.1016/j.eml.2020.100777⟩. ⟨hal-03141658⟩

Article dans une revue

A comparative study of human facial age estimation: handcrafted features vs. deep features

S. E. Bekhouche, F. Dornaika, A. Benlamoudi, A. Ouafi, Abdelmalik Taleb-Ahmed

In recent times, the topic of human facial age estimation attracted much attention. This is due to its ability to improve biometrics systems. Recently, several applications that are based on the demographic attributes estimation have been developed. These include law enforcement, re-identification…

Multimedia Tools and Applications, 2020, 79 (35-36), pp.26605-26622. ⟨10.1007/s11042-020-09278-7⟩. ⟨hal-03321567⟩

Article dans une revue

PEDOT:PSS-based micromuscles and microsensors fully integrated in flexible chips

Kätlin Rohtlaid, Lauréline Seurre, Giao T M Nguyen, Garrett Curley, Caroline Soyer, Sébastien Grondel, Frederic Vidal, Cedric Plesse, Eric Cattan

The demand for polymer-based soft micro-electro-mechanical systems (MEMS) is growing due to the substantial increase of flexible and wearable electronic devices. In this context, electronically conducting polymers (ECPs) fulfil the requirements for soft MEMS by offering the possibility of actuation…

Smart Materials and Structures, 2020, 29 (9), pp.09LT01. ⟨10.1088/1361-665X/aba48f⟩. ⟨hal-03097477⟩

Article dans une revue

Rate-dependent force–extension models for single-molecule force spectroscopy experiments

Manon Benedito, Fabio Manca, Pier Luca Palla, Stefano Giordano

Single-molecule force spectroscopy (SMFS) techniques allow for the measurements of several static and dynamic features of macromolecules of biological origin. In particular, the atomic force microscopy (AFM), used with a variable pulling rate, provides valuable information on the folding/unfolding…

Physical Biology, 2020, 17 (5), pp.056002. ⟨10.1088/1478-3975/ab97a8⟩. ⟨hal-02947976⟩

Article dans une revue

Ferromagnetism in the Ferromagnetic Yttrium Iron Garnet Film/Ferromagnetic Intermetallic Compound Heterostructure

T. Shaikhulov, Gennady Ovsyannikov, K. Constantinian, Alexey Klimov, V. Demidov, K.L. Stankevich, Nicolas Tiercelin, Philippe Pernod, S.A. Nikitov

We report on the investigations of the magnetic properties and ferromagnetic resonance in the het-erostructure consisting of an epitaxial yttrium iron garnet (Y 3 Fe 5 O 12) film and a nanometer rare-earth inter-metallic superlattice comprised of the (TbCo 2 /FeCo) n exchange-coupled layers. The (…

Physics of the Solid State, 2020, 62 (9), pp.1653-1658. ⟨10.1134/S1063783420090279⟩. ⟨hal-02963879⟩

Article dans une revue

Beyond linear coupling in microwave optomechanics

D. Cattiaux, Xin Zhou, S. Kumar, I. Golokolenov, R. R Gazizulin, A. Luck, L Mercier de Lépinay, M. Sillanpää, A. D Armour, A. Fefferman, E. Collin

We explore the nonlinear dynamics of a cavity optomechanical system. Our realization consisting of a drumhead nano-electro-mechanical resonator (NEMS) coupled to a microwave cavity, allows for a nearly ideal platform to study the nonlinearities arising purely due to radiation-pressure physics.…

Physical Review Research, 2020, 2 (3), pp.033480. ⟨10.1103/PhysRevResearch.2.033480⟩. ⟨hal-02949631⟩

Article dans une revue

Wide-range frequency control in magnetoacoustic resonator

Vladimir Moshkin, Vladimir Preobrazhensky, Philippe Pernod

Acoustic resonators based on antiferromagnetic crystals of "easy plane" type, like alpha-Fe2O3 or FeBO3, are of interest for applications in magnetoacoustic sensors of electrical and mechanical values because of high sensitivity of their resonance frequency to variations of external…

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2020, 67 (9), pp.1957-1959. ⟨10.1109/TUFFC.2020.2993405⟩. ⟨hal-03321519⟩

Article dans une revue

A lead-free non-ferroelectric piezoelectric glass-ceramic for high temperature surface acoustic wave devices

F. Dupla, Marie-Sophie Renoirt, Maurice Gonon, Nikolay Smagin, Marc Duquennoy, Gregory Martic, Jean-Pierre Erauw

A piezoelectric glass-ceramic containing Sr2TiSi2O8 crystals is synthesized and used to develop a SAW device tested up to 950 degrees C. This device consists of an input IDT that generates the wave and an output IDT that converts it into a measurable electrical signal. The evolution of amplitude…

Journal of the European Ceramic Society, 2020, 40 (11), pp.3759-3765. ⟨10.1016/j.jeurceramsoc.2020.01.051⟩. ⟨hal-03321526⟩

Article dans une revue

Coupling of integrated waveguide and optomechanic cavity for microwave phonon excitation in Si nanobeams

Abdellatif Gueddida, Bahram Djafari-Rouhani, Yan Pennec, Andrea Di Donato, Luca Pierantoni, Alexander Korovin, Davide Mencarelli

The availability of high quality manufacturing for optical micro/nano patterned cavities paves the way to the development of scalable circuits and devices based on optomechanical (OM) interaction of sound and light in extremely small volumes. In this contribution, we propose a new study on OM…

Photonics, 2020, 7 (3), pp.67. ⟨10.3390/photonics7030067⟩. ⟨hal-03321558⟩

Communication dans un congrès

A closed-form solution for energy-efficiency optimization in multi-user downlink NOMA

Hajar El Hassani, Anne Savard, Elena Veronica Belmega

This paper investigates the energy efficiency of a multiuser downlink non-orthogonal multiple access (NOMA) system. The energy-efficiency maximization representing the tradeoff between the sum rate versus the overall power consumption is formulated as a bi-criterion optimization problem; being…

IEEE 31st International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2020, Aug 2020, London, United Kingdom. ⟨10.1109/PIMRC48278.2020.9217069⟩. ⟨hal-02898928⟩