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Communication dans un congrès

Energy-efficient 1-bit feedback NOMA in wireless networks with no CSIT/CDIT

Hajar El Hassani, Anne Savard, E Veronica Belmega

In this paper, the energy efficiency of a two-user downlink non-orthogonal multiple access (NOMA) system is investigated. We consider a stochastic time-varying channel that is unknown at the transmitter side (in state and distribution) and propose an online learning method that is energy efficient…

IEEE Statistical Signal Processing Workshop, SSP 2021, Jul 2021, Rio de Janeiro, Brazil. IoT-1, 5 p., ⟨10.1109/SSP49050.2021.9513763⟩. ⟨hal-03227273⟩

Article dans une revue

Experimental Investigation of the Parameters Influencing the Surface Defect Detection by Using the Critically Refracted Longitudinal Waves

Wahiba Djerir, Mohamed Ourak, Tarek Boutkedjirt

Abstract: The aim of this work is the detection of surface defects by the refracted longitudinal wave and the study of the parameters that influence the use of this wave in transmission and reflection modes in order to optimize the non-destructive testing (NDT) conditions with the LCR waves. For…

Defektoskopiya / Russian Journal of Nondestructive Testing, 2021, 57 (1), pp.55-60. ⟨10.1134/S106183092130001X⟩. ⟨hal-03542164⟩

Chapitre d'ouvrage

Human Facial Age Estimation: Handcrafted Features Versus Deep Features

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

In recent times, human facial age estimation topic attracted a lot of attention due to its ability to improve biometrics systems. Recently, several applications that exploit demographic attributes have emerged. These applications include: access control, re-identification in surveillance videos,…

Advances in Science, Technology and Innovation, Springer Nature, pp.31-37, 2021, ⟨10.1007/978-3-030-14647-4_3⟩. ⟨hal-03541943⟩

Article dans une revue

Roll-to-roll in-line implementation of microwave free-space non-destructive evaluation of conductive composite thin layer materials

Grigorios Koutsoukis, Ivan Alic, Antonios Vavouliotis, Ferry Kienberger, Kamel Haddadi

A free-space microwave nondestructive testing and evaluation module is developed for the low-power, non-ionizing, contactless, and real-time characterization of doped composite thin-film materials in an industrial context. The instrumentation proposed is built up with a handled vector network…

Applied Sciences, 2021, 11 (1), 378, 11 p. ⟨10.3390/app11010378⟩. ⟨hal-03124050⟩

Communication dans un congrès

Numerical modeling of a nonlinear resonant vibrometry experiment for crack imaging

Vladislav Aleshin, Ravi Verma, Kevin Truyaert

In this communication we describe an original approach to numerical modeling for acoustic waves in a solid structure with a crack. The method allows us simulating the conditions of a real acoustic experiment for non-destructive testing and damage visualization. The presence of damage, for instance…

2ème colloque du GdR MecaWave, Oct 2021, Oléron, France. ⟨hal-03680788⟩

Communication dans un congrès

Dynamic thermoregulatory photonic crystal fabric for personal thermal management

Mohamed Boutghatin, Yan Pennec, Salim Assaf, Michèle Carette, V. Thomy, Abdellatif Akjouj, Bahram Djafari-Rouhani

Personal thermal management represents a new paradigm to reduce the energy consumption, which consists in controlling the temperature around the human body rather than regulating the temperature of the entire residential space. Recent progress in smart textile showed promising radiative heating and…

2021 IEEE Sensors, Oct 2021, Sydney, Australia. pp.1-4, ⟨10.1109/SENSORS47087.2021.9639828⟩. ⟨hal-03501272⟩

Communication dans un congrès

Securing Deep Spiking Neural Networks against Adversarial Attacks through Inherent Structural Parameters

R. El-Allami, A. Marchisio, M. Shafique, Ihsen Alouani

Deep Learning (DL) algorithms have gained popularity owing to their practical problem-solving capacity. However, they suffer from a serious integrity threat, i.e., their vulnerability to adversarial attacks. In the quest for DL trustworthiness, recent works claimed the inherent robustness of…

2021 Design, Automation and Test in Europe Conference and Exhibition (DATE 2021), Feb 2021, Grenoble, France. pp.774-779, ⟨10.23919/DATE51398.2021.9473981⟩. ⟨hal-03362270⟩

Communication dans un congrès

Third order notch over multi-bias and temperature in GaN and GaAs HEMTs

M.A. Alim, A.A. Rezazadeh, Christophe Gaquière

A detailed study about the shifting of third-order notch and threshold voltage with temperature for GaN and GaAs FETs were analyzed. For this purpose, a great deal of data over temperature between-40 to 150°C were measured by using two-tone intermodulation distortion set up. It was found that the…

15th European Microwave Integrated Circuits Conference, EuMIC 2020, Jan 2021, Utrecht, Netherlands. pp.277-280, ⟨10.1109/EuMIC48047.2021.00081⟩. ⟨hal-03362263⟩

Communication dans un congrès

Consequences of antenna effects on s-SNOM imaging of a photonic mode

T Hannotte, Louis Thomas, C Nascimento Santos, M Lavancier, Sophie Eliet, B Walter, Marc Faucher, Jean-Francois Lampin, Romain Peretti

We report on the influence of antenna effects on the imaging by THz s-SNOM of a photonic mode. Unknown radiation pattern from the probe and sample combination makes the interpretation of a s-SNOM image non-trivial.

Conference on Lasers and Electro-Optics, CLEO 2021, OSA, May 2021, San Jose (virtual), United States. pp.SW2K.5, ⟨10.1364/CLEO_SI.2021.SW2K.5⟩. ⟨hal-03313305⟩

Article dans une revue

Experimental realization of a pillared metasurface for flexural wave focusing

Wan Wang, Julio Andrés Iglesias Martinez, Yabin Jin, Bahram Djafari-Rouhani, Abdelkrim Khelif

A metasurface is an array of subwavelength units with modulated wave responses that show great potential for the control of refractive/reflective properties in compact functional devices. In this work, we propose an elastic metasurface consisting of a line of pillars with gradient heights, erected…

APL Materials, 2021, 9, pp.051125 (7). ⟨10.1063/5.0052278⟩. ⟨hal-03414231⟩