Publications

• Article dans une revue

Core–shell structured reduced graphene oxide wrapped magnetically separable rGO@CuZnO@Fe₃O₄ microspheres as superior photocatalyst for CO₂ reduction under visible light

P. Kumar, C. Joshi, Alexandre Barras, B. Sieber, A. Addad, L. Boussekey, Sabine Szunerits, Rabah Boukherroub, S. Jain

A highly efficient, recyclable and magnetically separable core-shell structured CuZnO@Fe₃O₄ microsphere wrapped with reduced graphene oxide (rGO@CuZnO@Fe₃O₄) photocatalyst has been developed and used for the…

• Article dans une revue

High temperature gradient calorimetric wall shear stress micro-sensor for flow separation detection

Cécile Ghouila-Houri, Quentin Gallas, Eric Garnier, Alain Merlen, Romain Viard, Abdelkrim Talbi, Philippe Pernod

The paper describes and discusses the design and testing of an efficient and high-sensitivity calorimetricthermal sensor developed for bi-directional wall shear stress measurements in aerodynamic flows. Themain technical application targeted is flow separation detection. The measurement principle…

Sensors and Actuators A: Physical , 2017, 266, pp.232-241. ⟨10.1016/j.sna.2017.09.030⟩. ⟨hal-01705613⟩

• Article dans une revue

Energy Efficient Hardware and Improved Cluster-Tree Topology for Lifetime Prolongation in ZigBee Sensor Networks

Mourad Ouadou, Ouadoudi Zytoune, Yassin El Hillali, Atika Rivenq, Driss Aboutajdine

In wireless sensor networks, building energy-efficient systems is one of the major challenges. In such networks, nodes are usually supplied by low power and small batteries. Many factors are involved in the energy consumption, and this issue may be considered as a cross-layer problem, from the…

Journal of sensor and actuator networks, 2017, 6 (4), pp.22. ⟨10.3390/jsan6040022⟩. ⟨hal-03528721⟩

• Article dans une revue

Simulation Study of the Localization of a Near-Surface Crack Using an Air-Coupled Ultrasonic Sensor Array

Steven Delrue, Vladislav Aleshin, Mikael Sørensen, Lieven Lathauwer

The importance of Non-Destructive Testing (NDT) to check the integrity of materials in different fields of industry has increased significantly in recent years. Actually, industry demands NDT methods that allow fast (preferably non-contact) detection and localization of early-stage defects with…

Sensors, 2017, 17 (4), pp.930. ⟨10.3390/s17040930⟩. ⟨hal-05479947⟩

• Article dans une revue

Influence of neutron irradiation on electron traps induced by NGB stress in AlInN/GaN HEMTs

Sébastien Petitdidier, Yannick Guhel, Guillaume Brocero, Philippe Eudeline, Jean-Lionel Trolet, Patrick Mary, Christophe Gaquière, Bertrand Boudart

IEEE Transactions on Nuclear Science, 2017, pp.1 - 1. ⟨10.1109/TNS.2017.2708692⟩. ⟨hal-01645121⟩

• Article dans une revue

International Summer School, Lille Report

Raffaele Pisano

Viewpoint, 2017, 110 (6), pp.13-14. ⟨hal-04509329⟩

• Article dans une revue

New adaptive filters as perceptual preprocessing for rate-quality performance optimization of video coding

Eloïse Vidal, Nicolas Sturmel, Christine Guillemot, Patrick Corlay, François-Xavier Coudoux

In this paper, we introduce two perceptual filters as pre-processing techniques to reduce the bitrate of compressed high-definition (HD) video sequences at constant visual quality. The goal of these perceptual filters is to remove spurious noise and insignificant details from the original video…

Signal Processing: Image Communication, 2017, 52, pp.124 - 137. ⟨10.1016/j.image.2016.12.003⟩. ⟨hal-01591984⟩

• Article dans une revue

Luminescence imaging of photoelectron spin precession during drift in a p-type GaAs microfabricated Hall bar

V. Notot, D. Paget, A. Rowe, L. Martinelli, Fabian Cadiz, S. Arscott

Using a microfabricated p-type GaAs Hall bar, it is shown that the combined application of co-planar electric and magnetic fields enables the observation of spatial oscillations of the photoluminescence circular polarization due to the precession of drifting spin-polarized photoelectrons.…

Journal of Applied Physics, 2017, 121 (12), pp.125703. ⟨10.1063/1.4979097⟩. ⟨hal-02345426⟩

• Article dans une revue

IEEE 802.11n Communications in the Presence of Frequency-Sweeping Interference Signals

Virginie Deniau, Christophe Gransart, Grecia Romero, Eric Pierre Simon, Joumana Farah

This paper presents an analysis of the impact of intentional electromagnetic (EM) interferences on the performance of Wi-Fi communications. The goal is to analyze the susceptibility of orthogonal frequency-division multiplexing (OFDM) signals and to understand how certain parameters of the…, Cet article présente une analyse de l'impact des interférences électromagnétiques intentionnelles (IEMI) sur la performance des communications Wi-Fi. L'objectif est d'analyser la susceptibilité des signaux de OFDM (Orthogonal Frequency Division Multiplex ) et de comprendre comment…

IEEE Transactions on Electromagnetic Compatibility, 2017, 9p. ⟨10.1109/TEMC.2017.2684428⟩. ⟨hal-01524700⟩

• Article dans une revue

Complexity of the hot carrier relaxation in Si nanowires compared to bulk

Jing Li, Yann-Michel Niquet, Christophe Delerue

We investigate the relaxation of hot carriers by emission of phonons in bulk Si and Si nanowires (NWs) with an identical atomistic methodology. The phonon scattering is strongly enhanced in NWs. At high excitation energy, the carrier cooling is faster in NWs than in bulk, mainly due to the coupling…

Physical Review B, 2017, 95 (20), pp.205401. ⟨10.1103/PhysRevB.95.205401⟩. ⟨hal-02015399⟩