Publications

Type de document

Mots clés

Auteur

Du

Au

Affichage de 541 à 550 sur 567

Article dans une revue

Approximation of surfaces with fault(s) and/or rapidly varying data, using a segmentation process, $D^m$-splines and the finite element method

Christian Gout, Carole Le Guyader, Lucia Romani, Anne-Gaëlle Saint-Guirons

In many problems of geophysical interest, one has to deal with data that exhibit complex fault structures. This occurs, for instance, when describing the topography of seafloor surfaces, mountain ranges, volcanoes, islands, or the shape of geological entities, as well as when dealing with reservoir…

Numerical Algorithms, 2008, 48 (1-3), pp.67-92. ⟨10.1007/s11075-008-9177-8⟩. ⟨hal-00372730⟩

Article dans une revue

Geodesic Active Contour under Geometrical Conditions: theory and 3D applications

Carole Le Guyader, Christian Gout

In this paper, we propose a new scheme for both detection of boundaries and fitting of geometrical data based on a geometrical partial differential equation, which allows a rigorous mathematical analysis. The model is a geodesic-active-contour-based model, in which we are trying to determine a…

Numerical Algorithms, 2008, 48 (1-3), pp.105-133. ⟨10.1007/s11075-008-9174-y⟩. ⟨hal-00372706⟩

Article dans une revue

Generalized Fast Marching Method: Applications to Image Segmentation

Nicolas Forcadel, Carole Le Guyader, Christian Gout

In this paper, we propose a segmentation method based on the generalized fast marching method (GFMM) developed by Carlini et al. (submitted). The classical fast marching method (FMM) is a very efficient method for front evolution problems with normal velocity (see also Epstein and Gage, The curve…

Numerical Algorithms, 2008, 48 (1-3), pp.189-211. ⟨10.1007/s11075-008-9183-x⟩. ⟨hal-00372740⟩

Article dans une revue

On the use of response surface methodology to predict and interpret the preferred c-axis orientation of sputtered AlN thin films

J. Adamczyk, Nicolas Horny, Arnaud Tricoteaux, Pierre-Yves Jouan, M. Zadam

This paper deals with experimental design applied to response surface methodology (RSM) in order to determine the influence of the discharge conditions on preferred c-axis orientation of sputtered AlN thin films. The thin films have been deposited by DC reactive magnetron sputtering on Si (1 0 0)…

Applied Surface Science, 2008, 254 (6), pp.1744-1750. ⟨10.1016/j.apsusc.2007.07.139⟩. ⟨hal-03455048⟩

Article dans une revue

Biological and physico-chemical assessment of hydroxyapatite (HA) with different porosity

Jean-Christophe Hornez, F Chai, F Monchau, N Blanchemain, Michel Descamps, H F Hildebrand

HA with specific internal porosities was loaded with different antibiotics (ATBs) and then tested on its microbiological effectiveness. The HA purity was controlled with X-ray diffraction, IR and Raman spectrometry. Varying the sintering temperature and/or adding graphite and PMMA as porogenous…

Biomolecular Engineering, 2007, 24, pp.505 - 509. ⟨10.1016/j.bioeng.2007.08.015⟩. ⟨hal-03280931⟩

Article dans une revue

Manufacture of macroporous β-tricalcium phosphate bioceramics

Michel Descamps, T Duhoo, F Monchau, J Lu, P Hardouin, Jean-Christophe Hornez, Anne Leriche

␤-Tricalcium phosphate (␤-TCP) macroporous ceramics were produced by a new manufacturing procedure. An organic skeleton constituted of polymethylmethacrylate balls (PMMA) is carried by a chemical forming treatment. This treatment consists to establish a connection between PMMA balls by a chemical…

Journal of the European Ceramic Society, 2007, 28, pp.149 - 157. ⟨10.1016/j.jeurceramsoc.2007.05.025⟩. ⟨hal-03280924⟩

Article dans une revue

In vitro culture of large bone substitutes in a new bioreactor: importance of the flow direction

V Olivier, Ph Hivart, Michel Descamps, Pierre Hardouin

New biomaterials combined with osteogenic cells are now being developed as an alternative to autogeneous bone grafts when the skeletal defect reaches a critical size. Yet, the size issue appears to be a key obstacle in the development of bone tissue engineering. Bioreactors are needed to allow the…

Biomedical Materials, 2007, 2 (3), pp.174-180. ⟨10.1088/1748-6041/2/3/002⟩. ⟨hal-04310090⟩

Article dans une revue

A posteriori error estimation for the dual mixed finite element method for the $p$-Laplacian in a polygonal domain

Emmanuel Creusé, Mohamed Farhloul, Luc Paquet

For the discrete solution of the dual mixed formulation for the $p$-Laplace equation, we define two residues $R$ and $r$. Then we bound the norm of the errors on the two unknowns in terms of the norms of these two residues. Afterwards, we bound the norms of these two residues by functions of two…

Computer Methods in Applied Mechanics and Engineering, 2007, 196 (25-28), pp.2570-2582. ⟨10.1016/j.cma.2006.11.023⟩. ⟨hal-00768644⟩

Article dans une revue

La saga des matériaux: classes et mise en forme des céramiques, The materials saga: sintering

Didier Bernache-Assollant, Jean-Pierre Bonnet, Claude Paul Carry, Christophe Chaput, Thierry Chartier, Jean-Louis Chermant, Bernard Durand, Sandrine Garrault, Nathalie Herlin-Boime, Jean Michel Lamerant, Yann Leconte, Sophie Le Gallet, Anne Leriche, Jean-Claude Niepce, Jacques Poirier, Francis Rebillat, Françoise Valdivieso

In ICV no 1010, we inaugurated our materials saga with the classification and shaping of ceramics. This second and short chapter deals with sintering and its different forms: non reactive or reactive sintering, natural or pressure sintering as well as two essential parameters: density and porosity.

Industrie céramique et verrière (L’), 2007, 1011, pp.40-74. ⟨hal-00293788⟩

Article dans une revue

Comparison of two molten flux process for the elaboration of textured PZT thin plates

Christian Courtois, Stéphanie Devemy, Philippe Champagne, Marc Lippert, Mohamed Rguiti, Anne Leriche, Daniel Chateigner, Emmanuel Guilmeau

In this paper, we describe a new protocol for the elaboration of textured PZT thin plates. This protocol is based on three steps: (i) powder synthesis, (ii) tape casting/lamination in green state and (iii) sintering/densification. Powder synthesis is operated through a specific molten flux method,…

Journal of the European Ceramic Society, 2007, 27 (13-15), pp.3779-3783. ⟨10.1016/j.jeurceramsoc.2007.02.160⟩. ⟨hal-04283089⟩