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Développement de capteurs piézoélectriques interdigités flexibles pour la caractérisation ultrasonore des revêtements, Development of flexibles interdigitated piezoelectric sensors for ultrasonic charaterization of coatings

Rafatou Takpara

Ce travail porte sur la réalisation de capteurs interdigités (IDT pour InterDigital Transducer) sur des supports piézoélectriques. L’enjeu est double puisqu’il s’agit premièrement de disposer de capteurs efficaces pour générer des ondes de surface acoustiques (SAW pour Surface Acoustic Wave) afin…, This work deals with the realization of interdigital sensors (IDT for InterDigital Transducer) on piezoelectric substrates. There is a dual challenge since firstly, the aim is to have efficient sensors to generate surface acoustic waves (SAW) in order to characterize the quality of the coatings and…

Mécanique des matériaux [physics.class-ph]. Université de Valenciennes et du Hainaut-Cambresis, 2015. Français. ⟨NNT : 2015VALE0041⟩. ⟨tel-03461069⟩

Article dans une revue

TCAD Simulations of graphene field-effect transistors based on the quantum capacitance effect

B. Hafsi, Aïmen Boubaker, Naoufel Ismaïl, Adel Kalboussi, Kamal Lmimouni

Journal of the Korean Physical Society, 2015, 67 (7), pp.1201-1207. ⟨10.3938/jkps.67.1201⟩. ⟨hal-04422395⟩

Article dans une revue

The V ( z ) Inversion Technique for Evaluation of an Adhesively Bonded Structure

Jing Liu, Wei-Jiang Xu, Wen-Xiang Hu, Mohamed Ourak, André Dubois

Based on the fact that the evolution trace in incident angle and frequency of the resonance zeros of the reflection coefficient function for a water charged layered medium is equivalent to its guided wave mode dispersion, the interfacial adhesion of a three-layer aluminum–adhesive–aluminum bonding…

Chinese Physics Letters, 2015, 32 (12), pp.124303. ⟨10.1088/0256-307X/32/12/124303⟩. ⟨hal-03451911⟩

Article dans une revue

Dual-band elliptical planar conductive polymer antenna printed on a flexible substrate

Z. Hamouda, J.-L. Wojkiewicz, A. Pud, Lamine Koné, B. Belaabed, S. Bergheul, T. Lasri

In this paper, a fully organic dual-band antenna is presented. It consists of a coplanar waveguide coupled to an elliptical monopole antenna designed on a kapton substrate. This antenna is fabricated from a process, based on the use of a conductive polymer (Polyaniline) doped with multiwall carbon…

IEEE Transactions on Antennas and Propagation, 2015, 63 (12), pp.5864-5867. ⟨10.1109/TAP.2015.2479643⟩. ⟨hal-03538465⟩

Article dans une revue

Acoustic coatings for maritime systems applications using resonant phenomena

Pierre Méresse, Christian Audoly, Charles Croënne, Anne-Christine Hladky

There is a great interest in the availability of acoustic coatings for maritime systems applications, in particular for the reduction of radiated noise in water. The purpose of this paper is to give an overview of recent results regarding the design of such materials, which are classically of two…

Comptes Rendus. Mécanique, 2015, 343 (12), pp.645-655. ⟨10.1016/j.crme.2015.07.004⟩. ⟨hal-03299399⟩

Article dans une revue

Time-domain LMMSE channel estimator based on sliding window for OFDM systems in high-mobility situations

Ali Kalakech, Marion Berbineau, Iyad Dayoub, Eric Pierre Simon

Recently, wideband orthogonal frequency-division multiplexing (OFDM)-based systems such as Long-Term Evolution (LTE) have been proposed for future railway communication systems. In such high-speed situations, Doppler phenomena, related to the terminal's high speed, affects the use of OFDM…

IEEE Transactions on Vehicular Technology, 2015, 64 (12), pp.5728-5740. ⟨10.1109/TVT.2014.2387255⟩. ⟨hal-03383658⟩

Article dans une revue

Ferroelectric Phase Transition, Interfaces Quality, and Stress Evolution of TiOx /Ba xSr1−xTiO3 Structures

Areski Ghalem, Freddy Ponchel, Denis Remiens, Tuami Lasri

Ba(Sr,Ti)O3 material presents a remarkable property that lies in the possibility to change the permittivity by applying a dc electric field, i.e., BST is a tunable material. That makes BST a very interesting material for the development of reconfigurable devices in microelectronics. In this study,…

Article dans une revue

Taming the degeneration of Bessel beams at anisotropic-isotropic interface: toward three-dimensional control of confined vortical waves

Antoine Riaud, Jean-Louis Thomas, Michael Baudoin, Olivier Bou Matar

Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2015, 92, pp.063201. ⟨10.1103/PhysRevE.92.063201⟩. ⟨hal-01310356⟩

Article dans une revue

Controlled mud-crack patterning and self-organized cracking of polydimethylsiloxane elastomer surfaces

Rian Seghir, S. Arscott

Exploiting pattern formation – such as that observed in nature – in the context of micro/nanotechnology could have great benefits if coupled with the traditional top-down lithographic approach. Here, we demonstrate an original and simple method to produce unique, localized and controllable self-…

Scientific Reports, 2015, 5 (1), ⟨10.1038/srep14787⟩. ⟨hal-02345522⟩

Poster de conférence

Structuration de surface de Silicium par gravure chimique assistée par des métaux nobles pour la texturisation de cellules solaires : Simulation de la modulation de la courbure de bande à l’interface Metal/Electrolyte/Silicium

Sylvain Le Gall, R. Lachaume, Mathieu Halbwax, Christine Cachet-Vivier, Vincent Magnin, Joseph Harari, Jean-Pierre Vilcot, S. Bastide

Journée Nationale du Photovoltaique, Dec 2015, Dourdan, France. ⟨hal-01246642⟩