Publicaciones

• COUV

Synthesis and Characterization of Doped Bioactive Glasses

Ahmed Bachar, Rémy Catteaux, Cédric Duée, Françoise Désanglois, Isabelle Lebecq, Cyrille Albert-Mercier, Claudine Follet-Houttemane

Bioactive glasses have been studied for several years. Hench has been the first to show their interest as bone substitutes. Bioglass 45S5 is the best known. This work reviews bioactive glasses of the SiO2, CaO, and Na2O domain. P, F, and N dopings are also presented. Mixture designs have been used...

Gurbinder Kaur. Biomedical, Therapeutic and Clinical Applications of Bioactive Glasses, Elsevier, pp.69-123, 2019, 9780081021965. ⟨10.1016/B978-0-08-102196-5.00003-3⟩. ⟨hal-02915319⟩

• ART

Stability results of some first order viscous hyperbolic systems

Serge Nicaise

In this paper, we first introduce an abstract viscous hyperbolic problem for which we prove exponential decay under appropriated assumptions. We then give some illustrative examples, like the linearized viscous Saint-Venant system. In order to achieve the optimal decay rate, we also perform a...

ESAIM: Control, Optimisation and Calculus of Variations, 2019, 25, pp.33. ⟨10.1051/cocv/2018020⟩. ⟨hal-02952637⟩

• COMM

Introduction à la modélisation de l'écriture manuscrite par des courbes Bézier Rationnelles massiques

L. Garnier, L Fuchs, Jean-Paul Becar

L’article est une introduction à la modélisation de l’écriture manuscrite. La représentation de l’écriture cursive in- terfère, selon l’approche hors ligne ou en ligne, sur la robustesse des algorithmes de reconnaissance des caractères manuscrits, de l’identification des auteurs et de leur...

Journées Françaises d’Informatique Graphique et de Réalité Virtuelle 2019, Aix Marseille Université, Nov 2019, Marseille, France. ⟨hal-02510444⟩

• COMM

Courbe d'une fraction rationnelle et courbes de Bézier à points massiques

Jean-Paul Becar, Laurent Fuchs, Lionel Garnier

La modélisation de courbes ou d'arcs de courbe par des courbes de Bézier, qui peut être vu comme un simple changement de base pour les courbes polynomiales, est moins évidente pour les courbes rationnelles. En effet, les courbes rationnelles ne se sont pas complètement capturées par le modèle..., Modelling polynomial curves or arcs with Bezier curves can be seen as a basis conversion not so easy for the rational curves. The classical representation of Rational curves based on controlled points with non negative weights as in NURBS does not cover all rational curves. This can be fixed by...

GTMG 2019, Mar 2019, TOULOUSE, France. ⟨hal-02510427⟩

• COMM

Effect of CuBi<inf>2</inf>O<inf>4</inf> additive on dielectric, ferroelectric, and piezoelectric properties of BCTZ lead free ceramics sintered at low temperature

Naima Zidi, Ahcene Chaouchi, Mohamed Rguiti, Christian Courtois, Yannick Lorgouilloux

The influence of CuBi2O4 addition on sintering temperature, structural, dielectric and piezoelectric properties of (Ba, Ca)(Ti, Zr)O3 BCTZ ceramics prepared by the direct solid-state reaction were investigated. The X ray diffraction (XRD) data showed a single phase perovskite structure with...

• ART

Femtosecond laser impact on calcium phosphate bioceramics assessed by micro-Raman spectroscopy and osteoblastic behaviour

Marie Lasgorceix, Liliana Grenho, Maria Helena Fernandes, Cédric Ott, Laurent Boilet, Anne Leriche, Fernando Monteiro, Francis Cambier, Stéphane Hocquet

The present work is an investigation of the biological response to the presence of grooves 3 μm deep, 15 μm wide and spaced by 100 μm, produced with femtosecond laser on β-tricalcium phosphate (β-TCP). The heat affected zone generated by the laser irradiation was investigated. Micro-Raman...

Journal of the European Ceramic Society, 2018, 38 (16), pp.5545-5553. ⟨10.1016/j.jeurceramsoc.2018.07.048⟩. ⟨hal-03080557⟩

• ART

The Helmholtz decomposition in weighted L^p spaces in cones

Serge Nicaise

In this paper we prove the Helmholtz decomposition in conical domains of $R^3$ in weighted $L^p_\beta$ spaces under a spectral condition on $\beta, p$. The basic bricks are the transformation of the original problem into a problem set in cylindrical domains and the combination of a priori bounds...

Bulletin of the Belgian Mathematical Society - Simon Stevin, 2018, 25 (5), ⟨10.36045/bbms/1547780431⟩. ⟨hal-01541298⟩

• THESE

Synthèse et caractérisation physico-chimique de nouveaux phosphates de magnésium : (A¹₂ ou B²)Mg₂M³(PO₄)₃ (A = Na, Ag ; B = Ca, Pb, Sr, Ba ; M = Fe, In), Synthesis and physicochemical characterization of new magnesium phosphates : (A¹₂ ou B²)Mg₂M³(PO₄)₃ (A = Na, Ag ; B = Ca, Pb, Sr, Ba ; M = Fe, In)

Ahmed Ould Saleck

Ce travail de thèse s’inscrit dans le cadre de la contribution au programme de valorisation des matériaux phosphatés et plus particulièrement, les phosphates de type alluaudite ou α-CrPO₄. Ces composés se distinguent par leurs propriétés physico-chimiques aussi variées qu’importantes et sont très..., This study is a part of contribution to the investigation program aiming to elaborate and to characterize new phosphate-based materials, particularly, with the alluaudite and/or α- CrPO₄ type structure. These compounds are characterized by their wide physico-chemical properties that they can...

Matière Condensée [cond-mat]. Université de Valenciennes et du Hainaut-Cambrésis; Université Mohammed V (Rabat), 2018. Français. ⟨NNT : 2018VALE0045⟩. ⟨tel-03366381⟩

• COMM

Élaboration de revêtements nano-structurés par chimie-douce et assistée par micro-ondes pour applications auto-nettoyantes et anti-bactériennes

Elodie Niemiec, Philippe Champagne, Arnaud Tricoteaux, Philippe Moreau, Anthony Thuault, Denis Lesueur, Christian Courtois

MATERIAUX 2018, Nov 2018, Strasbourg, France. ⟨hal-03439476⟩

• COMM

Elaboration de monolithes de silice mésoporeuse à porosités hiérarchisées à l’aide de porogènes polymériques

Rıdvan Yildiz, Yannick Lorgouilloux, Jérémy Dhainaut, Jean-Philippe Dacquin, Sébastien Royer, Christian Courtois

Matériaux 2018, Nov 2018, Strasbourg, France. ⟨hal-03515347⟩