Publicaciones

• ART

Dielectric properties and relaxor behavior of 0.935(Na0.5Bi0.5)TiO3-0.065BaTiO3 lead free piezoelectric ceramic

Hamza Lidjici, Brahim Marfoua, Brahim Laghoun, Mohamed Rguiti, Hamadi Khemakhem

Dielectric properties of 0.935(Na0.5Bi0.5)TiO3-0.065BaTiO3 lead free piezoelectric ceramic are studied. The study shows a diffuse phase transition (DPT) characterized by a frequency dispersion of permittivity which is related to cation disorder at A-site. Additionally to this dispersion, this solid...

Ceramics International, 2016, 42 (11), pp.12735-12739. ⟨10.1016/j.ceramint.2016.05.029⟩. ⟨hal-03117445⟩

• ART

Numerical and ex vivo studies of a bioprobe developed for laser-induced thermotherapy (LITT) in contact with liver tissue

Thierry Chartier, Olivier Carpentier, Benoit Genestie, J-C. Hornez, Francine Monchau

This work is based on the production of a bioprobe that is compatible with magnetic resonance imaging (MRI) for laser-induced thermotherapy (LITT) in liver cancer laser therapy. This probe is made of an alumina tube (3-mm diameter) in which an optical fibre is centred and fixed. A shooting window (...

Medical Engineering & Physics, 2016, 38 (8), pp.733-740. ⟨10.1016/j.medengphy.2016.04.024⟩. ⟨hal-03276066⟩

• COMM

Développement de capteurs piézoélectriques interdigités flexibles pour la caractérisation ultrasonore des revêtements

Rafatou Takpara, Marc Duquennoy, Christian Courtois

3ème Conférence Ingénierie et Modélisation des Systèmes, IMS 2016, Jul 2016, Lomé, Togo. ⟨hal-03591228⟩

• THESE

Study of the exponential and polynomial stability of some systems of coupled equations with indirect bounded or unbounded control, Étude de la stabilisation exponentielle et polynomiale de certains systèmes d'équations couplées par des contrôles indirects bornés ou non bornés

Nadine Najdi

Résumé en anglais non disponible, La thèse porte essentiellement sur la stabilisation indirecte de certains systèmes d’équations couplées moyennant un seul contrôle agissant localement à l’intérieur ou sur le bord du domaine. La nature du système ainsi couplé dépend du couplage des équations et du type de l’amortissement, et ceci...

Analysis of PDEs [math.AP]. Université de Valenciennes et du Hainaut-Cambresis, 2016. English. ⟨NNT : 2016VALE0017⟩. ⟨tel-01469778⟩

• POSTER

Fully discrete approximation of general semilinear Sobolev equations

Fatiha Bekkouche, Serge Nicaise

Conférence "Stability of non-conservative systems", Jul 2016, Valenciennes, France. ⟨hal-03142727⟩

• ART

Polynomial approach for modeling a piezoelectric disc resonator partially covered with electrodes

L. Elmaimouni, Jean-Etienne Lefebvre, F.E. Ratolojanahary, J.G. Yu, P.M. Rabotovao, I. Naciri, Tadeusz Gryba, Mohamed Rguiti

The frequency spectrum of a partially metallized piezoelectric disc resonator was studied using Legendre polynomials. The formulation, based on three-dimensional equations of linear elasticity, takes into account the high contrast between the electroded and non-electroded regions. The mechanical...

Wave Motion, 2016, 64, pp.79-91. ⟨10.1016/j.wavemoti.2016.03.003⟩. ⟨hal-03120077⟩

• COMM

Mass points, Bézier curves and comics : a survey

Lionel Garnier, Jean-Paul Becar

Automatic Deduction in Geometry, Jun 2016, Strasbourg, France. pp. 97-116. ⟨hal-03151873⟩

• POSTER

Optimization of PZT ceramic based composites IDT sensors for health monitoring of structures

Rafatou Takpara, Marc Duquennoy, Christian Courtois, Mohamed Rguiti, Yannick Lorgouilloux

Electroceramics XV, Jun 2016, Limoges, France. ⟨hal-03591395⟩

• COUV

CR-submanifolds of the nearly Kähler 6-sphere

Miroslava Antić, Luc Vrancken

There is an almost complex structure J on the sphere S6(1) defined by multiplication of the Cayley numbers. This structure is nearly Kähler. A submanifold of a manifold with an almost complex structure is CR, by Bejancu, if it has a differentiable holomorphic distribution H such that its orthogonal...

Sorin Dragomir; Mohammad Hasan Shahid. Geometry of Cauchy-Riemann Submanifolds, Springer Verlag, 390 p., 2016, 9789811009150. ⟨10.1007/978-981-10-0916-7_3⟩. ⟨hal-03149500⟩

• ART

Stability of the wave equation with localized Kelvin-Voigt damping and boundary delay feedback

Serge Nicaise, Cristina Pignotti

We study the stabilization problem for the wave equation with localized Kelvin--Voigt damping and mixed boundary condition with time delay. By using a frequency domain approach we show that, under an appropriate condition between the internal damping and the boundary feedback, an exponential...

Discrete and Continuous Dynamical Systems - Series S, 2016, 9 (3), pp.791-813. ⟨10.3934/dcdss.2016029⟩. ⟨hal-03142563⟩