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Affichage de 3151 à 3160 sur 16289

Article dans une revue

Band gap enhancement in periodic frames using hierarchical structures

Vinícius Dal Poggetto, Federico Bosia, M. Miniaci, Nicola Pugno

The quest for novel designs for lightweight phononic crystals and elastic metamaterials with wide low-frequency band gaps has proven to be a significant challenge in recent years. In this context, lattice-type materials represent a promising solution, providing both lightweight properties and…

International Journal of Solids and Structures, 2021, 216, pp.68-82. ⟨10.1016/j.ijsolstr.2021.01.003⟩. ⟨hal-03146564⟩

Article dans une revue

Entropy production and Onsager reciprocal relations describing the relaxation to equilibrium in stochastic thermodynamics

Stefano Giordano

We study the relation between stochastic thermodynamics and non-equilibrium thermodynamics by evaluating the entropy production and the relation between fluxes and forces in a harmonic system with N particles in contact with N different reservoirs. We suppose that the system is in a non-equilibrium…

Physical Review E , 2021, 103 (5), 052116,13 p. ⟨10.1103/PhysRevE.103.052116⟩. ⟨hal-03236065⟩

Article dans une revue

Homogenization of periodic 1-3 piezocomposite using wave propagation: Toward an experimental method

Antoine Balé, Rémi Rouffaud, Franck Levassort, Renald Brenner, Anne-Christine Hladky

1-3 piezocomposites are first choice materials for integration in ultrasonic transducers due to their high electromechanical performance, particularly, in their thickness mode. The determination of a complete set of effective electroelastic parameters through a homogenization scheme is of primary…

Journal of the Acoustical Society of America, 2021, 149 (5), pp.3122-3132. ⟨10.1121/10.0004824⟩. ⟨hal-03227151⟩

Article dans une revue

Pump-probe localization technique of varying solid contacts

Marina Terzi, Lynda Chehami, Maxime Farin, Emmanuel Moulin, Vladislav Aleshin, Nikolay Smagin, Julien de Rosny, Farouk Benmeddour

A baseline-free defect localization method in thin plates is proposed and tested. In this proof-of-concept work, a steel ball pressed against an aluminum plate is used to mimic a surface contact defect. The technique takes benefit of a repetitive nonlinear pump-probe interaction with a…

Journal of the Acoustical Society of America, 2021, 149 (5), pp.2943-2949. ⟨10.1121/10.0004820⟩. ⟨hal-03376735⟩

Article dans une revue

Fast X‐ray Nanotomography with Sub‐10 nm Resolution as a Powerful Imaging Tool for Nanotechnology and Energy Storage Applications

Vincent de Andrade, Viktor Nikitin, Michael Wojcik, Alex Deriy, Sunil Bean, Deming Shu, Tim Mooney, Kevin Peterson, Prabhat Kc, Kenan Li, Sajid Ali, Kamel Fezzaa, Doga Gürsoy, Cassandra Arico, Saliha Ouendi, David Troadec, Patrice Simon, Francesco de Carlo, Christophe Lethien

In the last decade, transmission X-ray microscopes (TXMs) have come into operation in most of the synchrotrons worldwide. They have proven to be outstanding tools for non-invasive ex and in situ 3D characterization of materials at the nanoscale across varying range of scientific applications.…

Advanced Materials, 2021, 33 (21), pp.2008653. ⟨10.1002/adma.202008653⟩. ⟨hal-03545058⟩

Article dans une revue

Effect of prestress on phononic band gaps induced by inertial amplification

M. Miniaci, Matteo Mazzotti, Ada Amendola, Fernando Fraternali

Phononic crystals and elastic metamaterials have recently received significant attention due to their potential for unconventional wave control. Despite this interest, one outstanding issue is that their band diagram is typically fixed once the structure is designed. To overcome this limitation,…

International Journal of Solids and Structures, 2021, 216, pp.156-166. ⟨10.1016/j.ijsolstr.2020.12.011⟩. ⟨hal-03169381⟩

Article dans une revue

Colorimetric detection of chromium (VI) ion using poly(N-phenylglycine) nanoparticles acting as a peroxidase mimetic catalyst

Sena Ghayyem, Abir Swaidan, Alexandre Barras, Mathias Dolci, Farnoush Faridbod, Sabine Szunerits, Rabah Boukherroub

This paper reports on enzyme-like catalytic properties of polyethylene glycol-functionalized poly(N-phenylglycine) (PNPG-PEG) nanoparticles, which have not been explored to date. The developed nanoparticles have the ability to display great inherent peroxidase-like activity at very low…

Talanta, 2021, 226, pp.122082. ⟨10.1016/j.talanta.2021.122082⟩. ⟨hal-03136451⟩

Article dans une revue

Coplanar waveguides on BCB measured up to 760 GHz

Nicolas Zerounian, Walid Aouimeur, Anne-Sophie Grimault-Jacquin, Guillaume Ducournau, Christophe Gaquière, Frédéric Aniel

The integrated THz pattern over any MMIC appears to be a good opportunity to enclose calibration kit suitable for accurate measurements. An original technology based on polymer has been developed. Sub-millimeter single-mode conductor-backed coplanar waveguides using benzocyclobutene polymer and…

Journal of Electromagnetic Waves and Applications, 2021, pp.1-11. ⟨10.1080/09205071.2021.1930588⟩. ⟨hal-03279194⟩

Article dans une revue

Design of zero bias power detectors towards power consumption optimization in 5G devices

Issa Alaji, Walid Aouimeur, Haitham Ghanem, Etienne Okada, Sylvie Lepilliet, Daniel Gloria, Guillaume Ducournau, Christophe Gaquière

This paper presents the design and characterization of zero bias power detectors, based on MOSFET transistors, integrated in SiGe 55-nm BiCMOS technology from ST-Microelectronics. The working frequency bands of the circuits are located in the range (38–55) GHz, dedicated to optimize the power…

Microelectronics Journal, 2021, 111, pp.105035. ⟨10.1016/j.mejo.2021.105035⟩. ⟨hal-03542166⟩

Article dans une revue

Evaluation of an antenna selection strategy for reduced massive MIMO complexity

Frédéric Challita, M. Lienard, Davy Gaillot, Jose-Maria Molina-Garcia-Pardo

Massive Multiple-Input Multiple-Output (MIMO) is emerging as one promising technology for the fifth generation (5G), but the hardware and software complexity arising from the sheer number of transmitting elements is a bottleneck. Antenna selection strategies have been reported as an appealing…

Radio Science, 2021, 56 (5), pp.e2020RS007242. ⟨10.1029/2020RS007242⟩. ⟨hal-03346252⟩