Publicaciones

• Communication dans un congrès

Les imprimantes 3D participent à la créativité des étudiants

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

L'impression 3D étend son domaine d'applications à toute l'industrie, à la recherche et au secteur éducatif. Le papier décrit au travers d'expériences réalisées, comment la créativité des étudiants peut être stimulée par l'usage de cette technologie récente, attractive et...

Congrès National de la Recherche en IUT, CNRIUT2018, Jun 2018, Aix-en-Provence, France. ⟨hal-01882702⟩

• Poster de conférence

Synthèse et étude structurale du nouveau phosphate de type alluaudite Na1,85Mg1,85In1,15(PO4)3

Ahmed Ould Saleck, Claudine Follet, Abderrazzak Assani, Mohamed Saadi, Cyrille Mercier, Lahcen El Ammari

Journées Nord-Ouest Européennes des Jeunes Chercheurs (JNOEJC 2018), Jun 2018, Villeneuve d'Ascq,, France. ⟨hal-04318739⟩

• Article dans une revue

Are calcium silicate hydrates (C-S-H) present in alkali-activated glass cullet cement?

Baptiste Marchand, S. Lanier, C. Davy, Cyrille Albert-Mercier, G. Tricot

This contribution analyzes the structure of sodium-lime-silica (SLS) glass alkali-activated with NaOH. The mix forms an alkali-activated cement (AAC), which has proven to be mechanically resistant when immerged under water. The aim is to determine whether the presence of calcium in the glass powder...

Materials Letters, 2018, 219, pp.104 - 108. ⟨10.1016/j.matlet.2018.02.046⟩. ⟨hal-01793442⟩

• Communication dans un congrès

Modeling of Rosen-type piezoelectric transformer by mean of a polynomial approach

Derandraibe Jeannot Falimiaramanana, Faniry Emilson Ratolojanahary, Ismail Naciri, P.M. Rabotovao, Lahoucine Elmaimouni, Jean-Etienne Lefebvre, Mohamed Rguiti, Tadeusz Gryba

The electromechanical behavior of piezoelectric transformers (PTs) is predicted using a polynomial approach. It is the first time that a polynomial method is applied to study structures made up of both an actuator and a transducer. The method consists in incorporating directly into the equations of...

6th International Conference on Multimedia Computing and Systems (ICMCS 2018), May 2018, Rabat, Morocco. pp.143-148, ⟨10.1109/ICMCS.2018.8525914⟩. ⟨hal-03582336⟩

• Article dans une revue

Existence and multiplicity for elliptic p-Laplacian problems with critical growth in the gradient

Colette De Coster, Antonio J. Fernández Sánchez

We consider the boundary value problem (Pλ) −∆pu = λc(x)|u| p−2u + µ(x)|∇u| p + h(x) , u ∈ W1,p 0 (Ω) ∩ L∞(Ω) , where Ω ⊂ RN , N ≥ 2, is a bounded domain with smooth boundary. We assume c, h ∈ Lq (Ω) for some q > max{N/p, 1} with c 0 and µ ∈ L∞(Ω). We prove existence and uniqueness results in...

Calculus of Variations and Partial Differential Equations, 2018, 57 (3), 42 p. ⟨10.1007/s00526-018-1346-6⟩. ⟨hal-03137670⟩

• Article dans une revue

Indirect stability of the wave equation with a dynamic boundary control

Denis Mercier, Serge Nicaise, Mohamad Ali Sammoury, Ali Wehbe

In this paper, we consider a damped wave equation with a dynamic boundary control. First, combining a general criteria of Arendt and Batty with Holmgren's theorem we show the strong stability of our system. Next, we show that our system is not uniformly stable in general, since it is the case...

Mathematical News / Mathematische Nachrichten, 2018, 291 (7), pp.1114-1146. ⟨10.1002/mana.201700021⟩. ⟨hal-01956619⟩

• Article dans une revue

Regularity and a priori error analysis on anisotropic meshes of a Dirichlet problem in polyhedral domains

Hengguang Li, Serge Nicaise

Consider the Poisson equation on a polyhedral domain with the given data in a weighted L 2 space. We establish new regularity results for the solution with possible vertex and edge singularities and propose anisotropic finite element algorithms approximating the singular solution in the optimal...

Numerische Mathematik, 2018, 139 (1), pp.47-92. ⟨10.1007/s00211-017-0936-0⟩. ⟨hal-01956612⟩

• Article dans une revue

Density and trace results in generalized fractal networks

Serge Nicaise, Adrien Semin

The first aim of this paper is to give different necessary and sufficient conditions that guarantee the density of the set of compactly supported functions into the Sobolev space of order one in infinite p-adic weighted trees. The second goal is to define properly a trace operator in this Sobolev...

ESAIM: Mathematical Modelling and Numerical Analysis, 2018, 52 (3), pp.1023-1049. ⟨10.1051/m2an/2018021⟩. ⟨hal-01956605⟩

• Article dans une revue

High-frequency behaviour of corner singularities in Helmholtz problems

Théophile Chaumont-Frelet, Serge Nicaise

We analyze the singular behaviour of the Helmholtz equation set in a non-convex polygon. Classically, the solution of the problem is split into a regular part and one singular function for each re-entrant corner. The originality of our work is that the " amplitude " of the singular parts...

ESAIM: Mathematical Modelling and Numerical Analysis, 2018, ⟨10.1051/m2an/2018031⟩. ⟨hal-01706415⟩

• Communication dans un congrès

Développement de capteurs acoustiques pour le suivi du séchage des bétons

Saliou Ndao, Marc Duquennoy, Christian Courtois, Mohammadi Ouaftouh, Mohamed Rguiti, Frédéric Rivart, Christine Pelegris, Maurice Gonon, Gregory Martic, Frédéric Jenot, Stephanie Humblet-Baron

Actes du 14ème Congrès Français d'Acoustique, CFA 2018, Apr 2018, Le Havre, France. ⟨hal-03590697⟩