Publicaciones

• Communication dans un congrès

Dispersion of IDT-induced high-frequency surface acoustic waves - Application to the mechanical and dimensional characterization of mesoporous silicon

Tahar Kadi, Marc Duquennoy, Katir Ziouche, Mohammadi Ouaftouh, Nikolay Smagin

A method based on the dispersion of surface acoustic waves (SAW) is proposed for the effective characterization of mesoporous silicon (MPS) layers with the possibility of estimating Young's modulus and the thickness of the porous layer, as well as the porosity. For this purpose, IDT were...

IEEE International Ultrasonics Symposium 2020, IUS2020, Sep 2020, Las Vegas, United States. pp.4, ⟨10.1109/IUS46767.2020.9251563⟩. ⟨hal-03322825⟩

• Communication dans un congrès

Development of PZT-based 18 MHz 2D pMUT array with PDMS waveguide

Xu-Bo Wang, Le-Ming He, Wen-Juan Liu, Shu-Ren Song, Wei-Jiang Xu, Qian Cheng, Antoine Riaud, Jun-Yan Ren, Jia Zhou

For high-resolution ultrasonic imaging, an 18 MHz lead zirconate titanate (PZT) based two-dimensional (2D) piezoelectric micromachined ultrasonic transducers (pMUTs) array with polydimethylsiloxane (PDMS) waveguide are developed. The array is composed of 8 x 16 elements with a pitch of 75 mu m and...

IEEE International Ultrasonics Symposium 2020, IUS2020, Sep 2020, Las Vegas, United States. 4 p., ⟨10.1109/IUS46767.2020.9251633⟩. ⟨hal-03322798⟩

• Article dans une revue

Atomic Structure of Glassy GeTe 4 as a Playground to Assess the Performances of Density Functional Schemes Accounting for Dispersion Forces

Pier Luigi Silvestrelli, Évelyne Martin, Mauro Boero, Assil Bouzid, Guido Ori, Carlo Massobrio

The atomic structure of glassy GeTe4 is obtained in the framework of first-principles molecular dynamics (FPMD) by considering five different approaches for the description of the electronic structure within density functional theory (DFT). Among these schemes, one is not corrected by accounting...

Journal of Physical Chemistry B, 2020, 124 (49), pp.11273-11279. ⟨10.1021/acs.jpcb.0c08628⟩. ⟨hal-03086320⟩

• Communication dans un congrès

Multiple sequential constraint removal algorithm for channel estimation in vehicular environment

Soheyb Ribouh, Yassin El Hillali, Atika Rivenq

Since the vehicular environment is highly mobile, the transmitted messages are affected by the wireless channel effect. This makes channel estimation one of the important tasks in Vehicle-To-Everything (V2X) communications. In this paper, we propose a novel Multiple Sequential Constraint Removal (...

International Symposium on Networks, Computers and Communications, ISNCC 2020, Oct 2020, Montreal, Canada. pp.1-7, ⟨10.1109/ISNCC49221.2020.9297235⟩. ⟨hal-03528674⟩

• Communication dans un congrès

A New Storage-Less Hardware Compression Technique for Convolution Neural Networks Using Constant Multiplication.

Mohamed Ayoub Neggaz, Ihsen Alouani, Smail Niar, Fadi Kurdahi

WAICA: Workshop on Artificial Intelligence and Computer Architecture in Conjunction with HiPeac conference'20, Jan 2020, Bologne, Italy. ⟨hal-03389472⟩

• Communication dans un congrès

Time-frequency characterization of sonar transducers in support to design

Manell Zakharia, Bertrand Dubus, Philippe Plantevin

Commonly used in ultrasonic pulse imaging, wideband transducers are becoming more and more popular in sonar area in various areas of application where the time resolution is a paramount issue such as: estimation of time of flight, communication, high resolution imaging, impedance and attenuation...

e-Forum Acusticum 2020, Dec 2020, Lyon, France. pp.1575-1579, ⟨10.48465/fa.2020.1016⟩. ⟨hal-03231996⟩

• Article dans une revue

Progress in understanding structure and transport properties of PEDOT-based materials: a critical review

Magatte N. Gueye, Alexandre Carella, Jérôme Faure-Vincent, Renaud Demadrille, Jean-Pierre Simonato

Progress in Materials Science, 2020, 108, pp.100616. ⟨10.1016/j.pmatsci.2019.100616⟩. ⟨hal-03140624⟩

• Communication dans un congrès

Scanning Acoustic Microscopy versus Colored Picosecond Acoustics to detect interface defects in hybrid wafer bonding

Solene Bossut, Arnaud Devos, S Lhostis, E Deloffre, C Euvrard, F Dettoni, C Chaton

Nowadays, microelectronics is making progress in miniaturization and diversification of chips by 3D integration: dies are stacked together to gain space and performances. The stacking used here is called hybrid bonding [1], as stacked surfaces are heterogeneous: part Cu and part oxide. After the...

Forum Acusticum, Dec 2020, Lyon, France. pp.2553-2554, ⟨10.48465/fa.2020.0878⟩. ⟨hal-03240341⟩

• Article dans une revue

Utilisation du silicium nanostructuré dans un générateur thermoélectrique pour la réduction des pertes thermiques

Katir Ziouche, Ibrahim Bel-Hadj, Zahia Bougrioua

Dans cet article, nous présentons des microgénérateurs thermoélectriques (μTEG) planaires réalisés en technologie Silicium compatible CMOS, et destinés à la récupération de toute forme d’énergie thermique. Ceux-ci utilisent des matériaux faible coût, abondants et respectueux de l’environnement. La..., In this paper, we present a planar thermoelectric microgenerator (μTEG) based on CMOS-compatible silicon technology to harvest all forms of thermal energy. These have made by using low cost, abundant and eco-friendly materials. The heat harvesting has performed with a silicon concentrator. The...

Entropie : thermodynamique – énergie – environnement – économie, 2020, 1 (1), 10 p. ⟨10.21494/ISTE.OP.2020.0493⟩. ⟨hal-02906722⟩

• Communication dans un congrès

Effects of the electrical limit conditions on the electromechanical behavior of piezoelectric transducer arrays

Abdelmajid Bybi, Adil Ammar, Mohammed Garoum, Sébastien Grondel, Ahmed Mzerd, Anne-Christine Hladky

Crosstalk is an undesirable phenomenon having a negative impact on the electroacoustic performance of ultrasonic transducer arrays, utilized in medical imaging and NDT applications. Indeed, when one element of a transducer array is excited, it generates parasitic voltages and/or displacement fields...

4th International Conference on Electrical and Information Technologies, ICEIT 2020, Mar 2020, Rabat, Morocco. pp.1-6, ⟨10.1109/ICEIT48248.2020.9113231⟩. ⟨hal-03209107⟩