Publications

• ART

Four-dimensional contact CR-submanifolds in S7(1)

Mirjana Djorić, Marian Ioan Munteanu, Luc Vrancken

The analogue of CR -submanifolds in (almost) Kählerian manifolds is the concept of contact CR -submanifolds in Sasakian manifolds. These are submanifolds for which the structure vector field ξ is tangent to the submanifold and for which the tangent bundle of M can be decomposed as T(M)=H(M)⊕E(M)⊕Rξ…

Mathematical News / Mathematische Nachrichten, 2017, 290 (16), pp.2585-2596. ⟨10.1002/mana.201600437⟩. ⟨hal-03148573⟩

• ART

A novel anatomical ceramic root canal simulator for endodontic training

Lieven Robberecht, F. Chai, Marion Dehurtevent, Pierre Marchandise, T. Bécavin, Jean-Christophe Hornez, Etienne Deveaux

Introduction Endodontic therapy is often complicated and technically demanding. The aim of this study was to develop a reproducible biomimetic root canal model for pre-clinical and postgraduate endodontic training. Material and Methods A specific ceramic shaping technique (3D printing and slip…

European Journal of Dental Education, 2017, 21 (4), pp.e1-e6. ⟨10.1111/eje.12207⟩. ⟨hal-03079712⟩

• COMM

3D PRINTING IS BOOSTING THE STUDENT'S CREATIVITY

Jean-Paul Becar, Jean Vareille, Vincent Cayez, Yoann Notteau

The 3D printing technology is spreading its application domain into many branches of industry as well as research and education. The paper relates experiences on how the student's creativity can be boosted by the use of this recent, affordable and attractive technology in education. A survey…

International Conference of Education, Research and Innovation, International Academy of Technology, Education and Development (IATED) Nov 2017, SEVILLE, Spain. ⟨hal-01691391⟩

• COUV

Types of ceramics : material class

Anne Leriche, Christophe Drouet, Stuart Hampshire, Artemis Stamboulis, Michele Iafisco, Anna Tampieri, Mitra Kashani

This chapter presents an exhaustive description of the various ceramic and glass materials used in biomedical applications. Active oxides like calcium phosphates, carbonates, and sulfates are largely described as monocomponents and in combination with other inorganic or organic materials for bone…

Paola Palmero; Eamonn De Barra; F. Cambier. Advances in Ceramic Biomaterials: Materials, Devices and Challenges, Elsevier, pp.21-82, 2017, 9780081008812. ⟨10.1016/B978-0-08-100881-2.00002-6⟩. ⟨hal-03079208⟩

• COMM

Usage des points massiques et des courbes de Bézier pour la modélisation des cubiques

Karine Serier, Jean-Paul Becar, Lionel Garnier

Cet article étend l'étude des points singuliers et des points d'inflexion des courbes rationnelles cubiques en s'ins-pirant de la méthode proposée par M. Sakai dans le cadre des points massiques. L'intérêt des points massiques est de généraliser le tracé des courbes admettant…

Journées Françaises d’Informatique Graphique, Oct 2017, RENNES, France. ⟨hal-02503737⟩

• ART

Planar Pythagorean-Hodograph B-Spline curves

Gudrun Albrecht, Carolina Vittoria Beccari, Jean-Charles Canonne, Lucia Romani

We introduce a new class of planar Pythagorean-Hodograph (PH) B-Spline curves. They can be seen as a generalization of the well-known class of planar Pythagorean-Hodograph (PH) Bézier curves, presented by R. Farouki and T. Sakkalis in 1990, including the latter ones as special cases. Pythagorean-…

Computer Aided Geometric Design, 2017, 57, pp.57-77. ⟨10.1016/j.cagd.2017.09.001⟩. ⟨hal-03234857⟩

• THESE

Synthèse de dioxyde de titane déposé sur des supports macro-poreux SiBC et SiBCN pour la photo-catalyse, Synthesis of titanium dioxide coated on macroporous SiCB and SiBCN supports for photocatalysis

Mélanie Wynn

La photo-catalyse est une voie très prisée pour la dépollution de l’eau ou de l’air. Le photo-catalyseur le plus employé est le dioxyde de titane (TiO2) mais l’activité photo-catalytique peut fortement varier d’une poudre à l’autre. De plus, il est très avantageux, voire nécessaire, de le déposer…, Photocatalysis is a method of choice for water and air depollution. Titanium dioxide (TiO2) is the most used photocatalyst but photocatalytic activity can widely differ from one powder to another. Moreover, it is useful, or even necessary, to immobilize it on a support; in particular, a porous…

Mécanique des matériaux [physics.class-ph]. Université de Valenciennes et du Hainaut-Cambresis, 2017. Français. ⟨NNT : 2017VALE0029⟩. ⟨tel-01884173⟩

• POSTER

Subdivision curves in the complex plane

Salim Taleb

Second Conference on Subdivision, Geometric and Algebraic Methods, Isogeometric Analysis and Refinability, Sep 2017, Gaeta, Italy. ⟨hal-03212486⟩

• ART

Structural, dielectric and piezoelectric study of Ca-, Zr-modified BaTiO3 lead-free ceramics

H Msouni, Amina Tachafine, M El Aatmani, Didier Fasquelle, Jean-Claude Carru, M El Hammioui, Mohamed Rguiti, A Zegzouti, A Outzourhit, M Daoud

We prepared a lead-free ceramic (Ba0.85 Ca0.15)(Ti1−x Zrx )O3 (BCTZ) using the conventional mixed oxide technique. The samples were prepared by an ordinary mixing and sintering technique. In this study we investigated how small amounts of Zr 4+ can affect the crystal structure and microstructure as…

Bulletin of Materials Science, 2017, 40 (5), pp.925-931. ⟨10.1007/s12034-017-1445-6⟩. ⟨hal-04280961⟩

• ART

Classification of the Locally Strongly Convex Centroaffine Hypersurfaces with Parallel Cubic Form

Xiuxiu Cheng, Zejun Hu, Marilena Moruz

In this paper, we study locally strongly convex centroaffine hypersurfaces with parallel cubic form with respect to the Levi–Civita connection of the centroaffine metric. As the main result, we obtain a complete classification of such centroaffine hypersurfaces. The result of this paper is a…

Results in mathematics = Resultate der Mathematik, 2017, 72 (1-2), pp.419-469. ⟨10.1007/s00025-017-0651-2⟩. ⟨hal-03233934⟩