Publications

• Article dans une revue

Elaboration of nitride thin films by reactive sputtering

Pierre Yves Jouan, Arnaud Tricoteaux, Nicolas Horny

The aim of this paper is first a better understanding of DC reactive magnetron sputtering and its implications, such as the hysteresis effect and the process instability. In a second part, this article is devoted to an example of specific application: Aluminium Nitride. AlN thin films have been…, O objetivo desse artigo, em um primeiro momento, é uma melhor compreensão da vaporização em um ambiente magnetron reativo DC e as suas conseqüências, tais como o efeito da histeresis e o processo de instabilidade. A segunda parte desse trabalho está dedicada a um estudo de caso: o nitreto de…

Rem : Revista Escola de Minas, 2006, 59 (2), pp.225-232. ⟨10.1590/s0370-44672006000200013⟩. ⟨hal-03455040⟩

• Article dans une revue

Segmentation of complex geophysical structures with well data

Christian Gout, Carole Le Guyader

In many problems of geophysical interest, when trying to segment images (i.e., to locate interfaces between different regions on the images), one has to deal with data that exhibit very complex structures. This occurs, for instance, when describing complex geophysical images (with layers, faults…

Computational Geosciences, 2006, 10 (4), pp.363-372. ⟨10.1007/s10596-006-9029-3⟩. ⟨hal-01024268⟩

• Article dans une revue

Optimized piezoelectric sensor for a specific application : detection of Lamb waves

Mohamed Rguiti, Sébastien Grondel, Faysal El Youbi, Christian Courtois, Marc Lippert, Anne Leriche

This work is devoted to the development and the optimization of a new piezoelectric sensor using Lamb waves destined to aerospace structures health monitoring. In such systems, Lamb waves are usually excited and received by thin single piezoelectric transducers. One of the most critical tasks in…

Sensors and Actuators A: Physical , 2006, 126 (2), pp.362-368. ⟨10.1016/j.sna.2005.10.015⟩. ⟨hal-00138726⟩

• Article dans une revue

Discrete compactness for a discontinuous Galerkin approximation of Maxwell's system

Emmanuel Creusé, Serge Nicaise

In this paper we prove the discrete compactness property for a discontinuous Galerkin approximation of Maxwell's system on quite general tetrahedral meshes. As a consequence, a discrete Friedrichs inequality is obtained and the convergence of the discrete eigenvalues to the continuous ones is…

ESAIM: Mathematical Modelling and Numerical Analysis, 2006, 40 (2), pp.413-430. ⟨10.1051/m2an:2006017⟩. ⟨hal-00768645⟩

• Article dans une revue

Anisotropic a posteriori error estimation for the mixed discontinuous Galerkin approximation of the Stokes problem

Emmanuel Creusé, Serge Nicaise

The paper presents a posteriori error estimates for the mixed discontinuous Galerkin approximation of the stationary Stokes problem. We consider anisotropic finite element discretizations, i.e. elements with very large aspect ratio. Our analysis covers two- and three-dimensional domains. Lower and…

Numerical Methods for Partial Differential Equations, 2006, 22 (2), ⟨10.1002/num.20107⟩. ⟨hal-00768690⟩

• Article dans une revue

Isotropic and anisotropic error estimation of the mixed finite element method for second order operators in divergence form

Serge Nicaise, Emmanuel Creusé

This paper presents an a posteriori residual error estimator for the mixed FEM of second order operators using isotropic or anisotropic meshes in $R^d$, $d$=2 or 3. The reliability and efficiency of our estimator is established without any regularity assumptions on the solution of our problem.

Electronic Transactions on Numerical Analysis, 2006, 23, pp.38-62. ⟨hal-00768689⟩

• Pré-publication, Document de travail

Approximation par des B-Splines de solutions optimales pour des problèmes LQ : une estimation a posteriori de l’erreur

Philippe Auquiert, Wilfrid Perruquetti, Olivier Gibaru

Nous proposons une alternative à l’équation de Riccati lors de la résolution de systèmes linéaires quadratiques en contrôle optimale. Une transformation de l’équation d’état basée sur la forme de Brunoswski de ce système permet de mettre en évidence une représentation sous la forme de sorties dites…

2025. ⟨hal-05084638⟩

• Article dans une revue

Application of the interfacial indentation test for adhesion toughness determination

Didier Chicot, P. Araujo, N. Horny, Arnaud Tricoteaux, J. Lesage

Surface and Coatings Technology, 2005, 200 (1-4), pp.174-177. ⟨10.1016/j.surfcoat.2005.02.045⟩. ⟨hal-03577795⟩

• Article dans une revue

Evaluation of a new bioreactor for in vitro development of large bone substitutes.

V. Olivier, Y. Xie, Michel Descamps, Ph. Hivart, J. Lu, Pierre Hardouin

International Journal of Experimental Pathology, 2005, 86 (3), pp.A23. ⟨10.1111/j.0959-9673.2005.00426.x⟩. ⟨hal-04310387⟩

• Article dans une revue

New considerations about the fracture mode of PZT ceramics

Olivier Guillon, Dominique Perreux, Frédéric Thiebaud, Christian Courtois, Philippe Champagne, Anne Leriche, Jacques Crampon

Sintered bulk ceramics, such as PZT are brittle materials. This macroscopically implies a statistical distribution of the ultimate strengths, because defects, such as pores or cracks are responsible for the initiation of the specimen failure. Another aspect of this fracture phenomenon is the crack…

Journal of the European Ceramic Society, 2005, 25 (12), pp.2421-2424. ⟨10.1016/j.jeurceramsoc.2005.03.074⟩. ⟨hal-00019132⟩