Publications

• Article dans une revue

Lagrangian submanifolds in the 6-dimensional nearly Kähler manifolds with parallel second fundamental form

Y. Zhang, Bart Dioos, Z. Hu, Luc Vrancken, X. Wang

In this paper, we study the Lagrangian submanifolds in the homogeneous nearly Kähler S3×S3 with parallel second fundamental form. We first prove that every Lagrangian submanifold with parallel second fundamental form in any 6-dimensional strict nearly Kähler manifold is totally geodesic. Then we…

Journal of Geometry and Physics, 2016, 108, pp.21-37. ⟨10.1016/j.geomphys.2016.06.004⟩. ⟨hal-03184700⟩

• Article dans une revue

Vibrational energy-harvesting performance of bio-sourced flexible polyamide 11/layered silicate nanocomposite films

M. Leveque, C. Douchain, Mohamed Rguiti, K. Prashantha, Christian Courtois, M.-F. Lacrampe, P. Krawczak

The energy-harvesting efficiency of melt processed polyamide 11 (PA11) films and its nanocomposites have been investigated as a function of filler type and content. In the present work, nanoclays have been used as structural modifiers in a PA11 matrix. The nanocomposites were prepared using layered…

International Journal of Polymer Analysis and Characterization, 2016, 22 (1), pp.72 - 82. ⟨10.1080/1023666X.2016.1233784⟩. ⟨hal-01773192⟩

• 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

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

Osteoblastic cells colonization inside beta-TCP macroporous structures obtained by ice-templating

Edwige Meurice, Franck Bouchart, Jean-Christophe Hornez, Anne Leriche, D. Hautcoeur, Véronique Lardot, Francis Cambier, M.H. Fernandes, F. Monteiro

A casting method based on ceramic slurry ice-templating was used to create beta-tricalcium phosphate anisotropic oriented macroporous scaffolds. The freeze-casting method produces tubular interconnected pores with ellipsoidal shape. The tubular porosity structure is supposed to enhance cell…

Journal of the European Ceramic Society, 2016, 36 (12), pp.2895-2901. ⟨10.1016/j.jeurceramsoc.2015.10.030⟩. ⟨hal-03079618⟩

• 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

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⟩