Publicaciones

• ART

A classification of totally geodesic and totally umbilical Legendrian submanifolds of (κ,μ)-spaces

Alfonso Carriazo, Veronica Martin-Molina, Luc Vrancken

We present classifications of totally geodesic and totally umbilical Legendrian submanifolds of (κ,μ)-spaces with Boeckx invariant I≤−1. In particular, we prove that such submanifolds must be, up to local isometries, among the examples that we explicitly construct

Annals of Global Analysis and Geometry, 2018, 54 (2), pp.173-185. ⟨10.1007/s10455-018-9597-1⟩. ⟨hal-03722206⟩

• ART

Alumina Porous Ceramics Obtained by Freeze Casting: Structure and Mechanical Behaviour under Compression

Dominique Hautcoeur, Véronique Lardot, Francis Cambier, Anne Leriche, Maurice Gonon, Carmen Baudin

The aim of the work is to analyse the mechanical behaviour of anisotropic porous alumina ceramics processed by freeze casting (ice templating). The freeze cast specimens were characterised by a lamellar structure with ellipsoidal pore shape, with a size ranging from 6 to 42 µm and 13 to 300 µm for...

Ceramics, 2018, 1 (1), pp.83-97. ⟨10.3390/ceramics1010008⟩. ⟨hal-03477168⟩

• ART

Effect of Microwave Drying, Calcination and Aging of Pt/Al2O3 on Platinum Dispersion

Xavier Auvray, Anthony Thuault

The effect of heating method employed for drying and calcination during the synthesis of 1 wt% Pt/Al 2 O 3 catalyst was investigated. Conventional heating (CH) in resistive oven and microwave heating (MW) in single mode were applied, and the Pt dispersion and Brunauer-Emmett-Teller (BET) surface...

Catalysts, 2018, 8 (9), pp.348. ⟨10.3390/catal8090348⟩. ⟨hal-04281996⟩

• COUV

Theory of Minkowski-Lorentz Spaces

Lionel Garnier, Jean-Paul Becar, Lucie Druoton, Laurent Fuchs, Géraldine Morin

Encyclopedia of Computer Graphics and Games, Springer International Publishing, pp.1-17, 2018, 978-3-319-08234-9. ⟨10.1007/978-3-319-08234-9_111-1⟩. ⟨hal-03545473⟩

• ART

Generalized harmonic morphisms and horizontally weakly conformal biharmonic maps

Elsa Ghandour, Ye-Lin Ou

Harmonic morphisms are maps between Riemannian manifolds that pull back harmonic functions to harmonic functions. These maps are characterized as horizontally weakly conformal harmonic maps and they have many interesting links and applications to several areas in mathematics (see the book [2] by...

Australian Journal of Mathematical Analysis and Applications, 2018, 464 (1), pp.924-938. ⟨10.1016/j.jmaa.2018.04.044⟩. ⟨hal-03149449⟩

• THESE

Optimal control of evolution equations and its applications, Contrôle optimal des équations d'évolution et ses applications

Hawraa Nabolsi

This thesis begins with a rigorous mathematical analysis of the radiative heating of a semi-transparent body made of glass, by a black radiative source surrounding it. This requires the study of the coupling between quasi-steady radiative transfer boundary value problems with nonhomogeneous..., Dans cette thèse, tout d’abord , nous faisons l’Analyse Mathématique du modèle exact du chauffage radiatif d’un corps semi-transparent Ω par une source radiative noire qui l’entoure. Il s’agit donc d’étudier le couplage d’un système d’Equations de Transfert Radiatif avec condition au bord de...

Analysis of PDEs [math.AP]. Université de Valenciennes et du Hainaut-Cambresis; Université Libanaise, 2018. English. ⟨NNT : 2018VALE0027⟩. ⟨tel-01915425⟩

• THESE

Élaboration de spinelle MgAl2O4 transparent par frittage naturel et post-HIP pour des applications en protections balistiques, Development of transparent MgAl2O4 spinel by pressureless sintering and post-HIP for ballistic protection applications

Caroline Gajdowski

Cette étude s’intéresse à l’amélioration et l’allégement des protections balistiques transparentes. L’utilisation conventionnelle de verre assure une haute efficacité face à un projectile, cependant associée à une masse élevée et à une forte épaisseur du blindage. Le remplacement de la face avant..., This work focuses on the improvement and the lightening of transparent ballistic armours. The conventional use of glass provides high efficiency against a projectile, however associated with a heavy and thick armour. The replacement of the strike face by a polycrystalline ceramic, such as MgAl2O4...

Mécanique des matériaux [physics.class-ph]. Université de Valenciennes et du Hainaut-Cambresis, 2018. Français. ⟨NNT : 2018VALE0022⟩. ⟨tel-01880163⟩

• COMM

ERASMUS TALKING AND DOING

Jean-Paul Becar, Jean-Charles Canonne, Marika Seppälä

I am Erasmus or I was Erasmus are coming common words in the European community. The article deals with that background and over two decades practice on European exchanges. Three major parts detail the theoretical background about Erasmus exchanges and its settings, the complete process of exchange...

10th International Conference on Education and New Learning Technologies, Jul 2018, Palma, France. ⟨10.21125/edulearn.2018⟩. ⟨hal-02508939⟩

• ART

Numerical optimization of cell colonization modelling inside scaffold for perfusion bioreactor: A multiscale model

T-K. Nguyen, Olivier Carpentier, Francine Monchau, F. Chai, Jean-Christophe Hornez, Ph. Hivart

Part of clinically applicable bone graft substitutes are developed by using mechanical stimulation of flow-perfusion into cell-seeded scaffolds. The role of fluid flow is crucial in driving the nutrient to seeded cells and in stimulating cell colonization. A common numerical approach is to use a...

Medical Engineering & Physics, 2018, 57, pp.40-50. ⟨10.1016/j.medengphy.2018.04.012⟩. ⟨hal-03080599⟩

• ART

New environmentally friendly coatings for hot forging tools

André Dubois, Mirentxu Dubar, Colin Debras, Kurt Hermange, Christelle Nivot, Christian Courtois

Two alumina coatings are developed to protect tool surface in hot forging: pure γ-alumina matrix loaded with α-alumina particles and pure γ-alumina matrix loaded with h-BN particles. The coatings are deposited on stainless tools by using a sol-gel procedure. Adherent coatings are obtained with an...

Surface and Coatings Technology, 2018, 344, pp.342-352. ⟨10.1016/j.surfcoat.2018.03.055⟩. ⟨hal-02909709⟩