Publicaciones

Affichage de 2731 à 2740 sur 16064


  • Article dans une revue

Freehand system for antenna diagnosis based on amplitude-only data

Guillermo Alvarez-Narciandi, Jaime Laviada, Yuri Alvarez-Lopez, Guillaume Ducournau, Cyril Luxey, Cybelle Belem-Gonçalves, Frédéric Gianesello, Nour Nachabe, Carlos del Rio, Fernando Las-Heras

This article presents a portable system for freehand antenna diagnosis and characterization based on amplitude-only data. The amplitude-only samples are acquired by moving a handheld probe, which is tracked by a motion capture system, in front of the antenna under test (AUT) aperture. The acquired...

IEEE Transactions on Antennas and Propagation, 2021, 69 (8), pp.4988-4998. ⟨10.1109/TAP.2021.3060082⟩. ⟨hal-03175036⟩

  • Article dans une revue

A micro-transducer matrix design for the detection of flexural guided waves

Hala El Rammouz, Farouk Benmeddour, Jamal Assaad, Emmanuel Moulin, Nikolay Smagin, Lucie Dupont, Lynda Chehami, Youssef Zaatar, Ziad Herro

In this paper, a new approach is proposed for the detection of ultrasonic guided waves using a LiNbO3 single crystal-based micro-transducer matrix. This matrix was designed, manufactured, and then used to detect Lamb and Pochhammer-Chree guided waves in plate- and cylinder-like structures. This...

Ultrasonics, 2021, 115, pp.106430. ⟨10.1016/j.ultras.2021.106430⟩. ⟨hal-03542162⟩

  • Article dans une revue

Short term reliability and robustness of ultra-thin barrier, 110 nm-gate AlN/GaN HEMTs

Zhan Gao, Matteo Meneghini, Kathia Harrouche, Riad Kabouche, Francesca Chiocchetta, Etienne Okada, Fabiana Rampazzo, Carlo de Santi, F Medjdoub, Gaudenzio Meneghesso, Enrico Zanoni

Short-term reliability and robustness of 110 nm AlN/GaN HEMTs has been evaluated by means of off-state, semi-on state and on-state step stress tests on devices having different gate-drain distance, LGD. While breakdown voltages and critical voltages scale almost linearly with LGD, failure mode...

Microelectronics Reliability, 2021, 123, pp.114199. ⟨10.1016/j.microrel.2021.114199⟩. ⟨hal-03287632⟩

  • Article dans une revue

In-situ Liquid Electrochemical TEM Investigation of Semi Solid-State LMNO Micro-Battery

Ankush Bhatia, Maxime Hallot, Sorina Cretu, Nicolas Folastre, Maxime Berthe, David Troadec, Pascal Roussel, Jean-Pierre Pereira-Ramos, Rita Baddour-Hadjean, C. Lethien, Arnaud Demortière

Microscopy and Microanalysis, 2021, 27 (S1), pp.1044-1046. ⟨10.1017/S1431927621003949⟩. ⟨hal-03551562⟩

  • Communication dans un congrès

[Invited] THz spintronic emitters with magnetoelectric control of the polarization and applications to polarimetry

Nicolas Tiercelin, Geoffrey Lezier, Pierre Koleják, Jean-Francois Lampin, Kamil Postava, Mathias Vanwolleghem

We present a scheme to achieve coherent polarization rotation without multipolar or rotating external magnetic bias nor complex cascaded emitters, by exploiting artificially engineered strong uniaxial anisotropy in intermetallic heterostructures of rare-earth and transition metals. By replacing the...

SPIE Nanoscience + Engineering, Spintronics XIV, Aug 2021, San Diego, United States. pp.118050O, 32, ⟨10.1117/12.2597306⟩. ⟨hal-03329178⟩

  • Article dans une revue

Modeling and Prediction of the Dynamic Viscosity of Nanofluids by a Homogenization Method

Ibrahim Zaaroura, Hilal Reda, Fabrice Lefebvre, Julien Carlier, Malika Toubal, Souad Harmand, Bertrand Nongaillard, Hassan Lakiss

Nanofluids are an innovative technology that can be used to improve the efficiency of heat transfer in systems such as coolers. Thermal system design requires access to all the physical properties of the nanofluids among which viscosity, thermal conductivity, and so on. Viscosity is an important...

Brazilian Journal of Physics, 2021, 51 (4), pp.1136-1144. ⟨10.1007/s13538-021-00909-4⟩. ⟨hal-03446033⟩

  • Article dans une revue

Enhanced visible light-triggered antibacterial activity of carbon quantum dots/polyurethane nanocomposites by gamma rays induced pre-treatment

Milica Budimir, Zoran Markovic, Jan Vajdak, Svetlana Jovanović, Pavel Kubát, Petr Humpoliček, Matej Mičušík, Martin Danko, Alexandre Barras, Dušan Milivojević, Zdenko Špitalský, Rabah Boukherroub, Biljana Todorović Marković

Persistent microbial contamination of medical implant surfaces is becoming a serious threat to public health. This is principally due to antibiotic-resistant bacterial strains and the formation of bacterial biofilms. The development of novel antibacterial materials that will effectively fight both...

Radiation Physics and Chemistry, 2021, 185, pp.109499. ⟨10.1016/j.radphyschem.2021.109499⟩. ⟨hal-03542165⟩