Publications

• Article dans une revue

Bioactive oxynitride glasses

Ahmed Bachar, Cyrille Albert-Mercier, Arnaud Tricoteaux, Anne Leriche, Claudine Follet-Houttemane, Stuart Hampshire

The low mechanical strength of bioactive glasses restricts their use to non load-bearing applications. One way to increase strength of glasses is to introduce nitrogen into the silicate network. Oxynitride bioactive glasses in the SiO2–CaO–Na2O–Si3N4 system were successfully prepared. Structural…

Journal of the European Ceramic Society, 2016, 36 (12), pp.2869-2881. ⟨10.1016/j.jeurceramsoc.2015.12.017⟩. ⟨hal-03079543⟩

• Article dans une revue

The distance of an eigenvector to a Krylov subspace and the convergence of the Arnoldi method for eigenvalue problems

Mohammed Bellalij, G. Meurant, Hassane Sadok

We study the distance of an eigenvector of a diagonalizable matrix A to the Krylov subspace generated from A and a given starting vector v. This distance is involved in studies of the convergence of the Arnoldi method for computing eigenvalues. Contrary to the previous studies on this problem, we…

Linear Algebra and its Applications, 2016, 504, pp.387-405. ⟨10.1016/j.laa.2016.04.018⟩. ⟨hal-03133143⟩

• Article dans une revue

Thermal conductivity of ceramic/metal composites from preforms produced by freeze casting

D. Hautcoeur, Yannick Lorgouilloux, Anne Leriche, M. Gonon, B. Nait-Ali, D.S. Smith, Véronique Lardot, Francis Cambier

Porous alumina and zirconia preforms, processed by ice templating, have been used to manufacture ceramic/metal composites by aluminium alloy infiltration. The aim of the present work is to study the influence of the ceramic material nature and of the initial porous structure on the thermal…

Ceramics International, 2016, 42 (12), pp.14077 - 14085. ⟨10.1016/j.ceramint.2016.06.016⟩. ⟨hal-01876687⟩

• Article dans une revue

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⟩

• Article dans une revue

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⟩

• Communication dans un congrès

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⟩

• Thèse

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 de conférence

Fully discrete approximation of general semilinear Sobolev equations

Fatiha Bekkouche, Serge Nicaise

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

• Article dans une revue

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⟩

• Communication dans un congrès

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⟩