Publications

• Communication dans un congrès

Optimal Computation of Guided Wave Propagation and Scattering in Pipeworks Comprising Elbows: Numerical and Experimental Validations and Parametric Studies

M. El Bakkali, A. Lhemery, B. Chapuis, F. Berthelot, Sébastien Grondel

Simulation tools of guided wave (GW) examination are developed at CEA to help inspection design and results interpretation. In a previous paper [M. El Bakkali, A. Lhemery, V. Baronian and F. Berthelot, (AIP Conf. Proc. 1581), pp. 332-9 (2014)], a model was developed to deal with GW propagation in…

41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Jul 2014, Boise, United States. pp.746-753, ⟨10.1063/1.4914676⟩. ⟨cea-01852429⟩

• Communication dans un congrès

Spectrum sensing applied to IR-UWB system based on M-OAM

Lamyae Maatougui, H. Ouahmane, A. Hajjaji, Khadija Hamidoun, Atika Rivenq, Yassin El Hillali

Intelligent transport system (ITS) exploits new communication and information technologies to make existing infrastructures more effective and more reliable, it resets on functions associated with the intelligence. The use of the ultra-wideband (UWB) appears as a very suitable technology for this…

3rd IEEE World Conference on Complex Systems, WCCS 2015, Nov 2015, Marrakec, Morocco. pp.7483218, ⟨10.1109/ICoCS.2015.7483218⟩. ⟨hal-03528682⟩

• Article dans une revue

A New Multi-user Ultra Wide Band System Based on Modified Gegenbauer Functions and M-OAM Modulation for Communication of Intelligent Transportation Systems

Khadija Hamidoun, Raja Elassali, Yassin El Hillali, Atika Rivenq, Khalid Elbaamrani, Fouzia Boukour

Ultra-wideband technology is based on the transmission of very short pulses with relatively low energy, which make it a promising option for short range wireless commu- nication system. In this paper, we propose to use this technology to establish a new multi- user technique dedicated to…

Wireless Personal Communications, 2015, 82 (4), p2115-2134. ⟨10.1007/s11277-015-2337-y⟩. ⟨hal-01214089⟩

• Article dans une revue

On the use of tracking loops for low-complexity multi-path channel estimation in OFDM systems

Huaqiang Shu, Eric Pierre Simon, Laurent Ros

—This paper treats pilot aided multi-path channel estimation with tracking loops for OFDM systems under slow to moderate fading conditions. Recent works have presented theoretical results for the tuning of second-order and third-order tracking loops in the particular context of Jakes's Doppler…

Signal Processing, 2015, 117, pp.174-187. ⟨10.1016/j.sigpro.2015.05.012⟩. ⟨hal-01174265⟩

• Communication dans un congrès

Optimization of a tunable piezoelectric resonator using phononic crystals with periodic electrical boundary conditions

Marie-Fraise Ponge, Bertrand Dubus, Christian Granger, Jerome O. Vasseur, Mai Pham Thi, Anne-Christine Hladky

Piezoelectric phononic crystals with periodic short-circuit conditions exhibit Bragg band gaps. They are used to design a Fabry-Perot cavity. The design of the device enables a modification of cavity length by a spatial shift of electrical boundary conditions. The resonator is thus tunable and a…

Proceedings of the 2015 ICU International Congress on Ultrasonics, May 2015, Metz, France. pp.258-261, ⟨10.1016/j.phpro.2015.08.149⟩. ⟨hal-03300135⟩

• Article dans une revue

Hexamolybdenum Clusters Supported on Graphene Oxide: Visible-Light Induced Photocatalytic Reduction of Carbon Dioxide into Methanol

Pawan Kumar, Harshal P. Mungse, Stéphane Cordier, Rabah Boukherroub, Om P. Khatri, Suman L Jain

Hexamolybdenum (Mo6) cluster-based compounds namely Cs2Mo6Bri8Bra6 and (TBA)2Mo6Bri8Bra6 (TBA = tetrabutylammonium) were immobilized on graphene oxide (GO) nanosheets by taking advantage of the high lability of the apical bromide ions with oxygen-functionalities of GO nanosheets. The loading of Mo6…

Carbon, 2015, 94, pp.91-100. ⟨10.1016/j.carbon.2015.06.029⟩. ⟨hal-01166772⟩

• Article dans une revue

Design and performances evaluation of new Costas-based radar waveforms with pulse coding diversity

Nadjah Touati, Charles Tatkeu, Thierry Chonavel, Atika Rivenq

Costas codes are a variant of pulse compression waveforms, largely studied for their attractive time-frequency properties. Their 'thumbtack-like' ambiguity function (AF) makes them highly suitable for delay and Doppler estimation, in radar and sonar applications. However, this behaviour…

IET Radar Sonar and Navigation, 2015, 15p. ⟨10.1049/iet-rsn.2014.0450⟩. ⟨hal-01213558⟩

• Communication dans un congrès

Experimental Study of Passive Defect Detection and Localization in Thin Plates from Noise Correlation

Lynda Chehami, Emmanuel Moulin, Julien de Rosny, Claire Prada, Jamal Assaad, Farouk Benmeddour

This paper reports experimental results on a passive imaging technique for structural health monitoring to detect the occurrence of defects in plate-like structures. This technique is based on the fact that the active transient response between two sensors can be passively retrieved by cross-…

International Congress on Ultrasonics, ICU 2015, May 2015, Metz, France. pp.322-325, ⟨10.1016/j.phpro.2015.08.216⟩. ⟨hal-04087482⟩

• Article dans une revue

Bulk elastic waves with unidirectional backscattering-immune topological states in a time-dependent superlattice

N. Swinteck, S. Matsuo, K. Runge, Jerome O. Vasseur, P. Lucas, P. Deymier

Recent progress in electronic and electromagnetic topological insulators has led to the demonstration of one way propagation of electron and photon edge states and the possibility of immunity to backscattering by edge defects. Unfortunately, such topologically protected propagation of waves in the…

Journal of Applied Physics, 2015, 118 (6), pp.063103. ⟨10.1063/1.4928619⟩. ⟨hal-03304962⟩

• Poster de conférence

Synthesis and Characterization of Gold Nanoparticles Functionalized with Electropolymerizable or Optically Switchable π-Conjugated Systems

Ali Yassin, I. L. Dobra, Philippe Blanchard, Maiténa Oçafrain, Jean Roncali, David Guérin, Stéphane Lenfant, Yannick Viero, Dominique Vuillaume

SYMOLESCO Workshop, 2015, Engelberg, Switzerland. , 2015. ⟨hal-02564057⟩