Publicaciones

• Pré-publication, Document de travail

A proof of the polynomial conjecture for restrictions of nilpotent Lie groups representations

Jean Ludwig, Ali Baklouti, Hidenori Fujiwara

2021. ⟨hal-03318829⟩

• Article dans une revue

The complete discretization of the dual mixed method for the heat diffusion equation in a polygonal domain

Luc Paquet, Réda Korikache

The purpose of this paper is to prove a priori error estimates for the completely discretized problem of the dual mixed method for the non-stationary heat diffusion equation in a polygonal domain of R2. Due to the geometric singularities of the domain, the exact solution is not regular in the...

Mathematics and Computers in Simulation, 2021, 186, pp.145-160. ⟨10.1016/j.matcom.2020.09.023⟩. ⟨hal-03722154⟩

• Article dans une revue

Effect of Bi substitution on nanostructural, morphologic, and electrical behavior of nanocrystalline La1-xBixNi0.5Ti0.5O3 (x = 0 and x = 0.2) for the electrical devices

S. Gharbi, R. Dhahri, M. Rasheed, E. Dhahri, R. Barille, Mohamed Rguiti, A. Tozri, Mohamed Berber

Bi-substituted Ti–Ni perovskite of different compositions La1-xBixNi0.5Ti0.5O3 were elaborated utilizing the sol–gel method. TGA thermogravimetric and DSC calorimetric analysis was used to obtain the optimal sample formation temperature. XRD Results showing that samples have crystallized in the...

Materials Science and Engineering: B, 2021, 270, pp.115191. ⟨10.1016/j.mseb.2021.115191⟩. ⟨hal-04280938⟩

• Article dans une revue

Improvement of wear and corrosion protection of PEO on AA2024 via sol-gel sealing

Luciane Sopchenski, Julien Robert, Matthieu Touzin, Arnaud Tricoteaux, Marie-Georges Olivier

Plasma electrolytic oxidation (PEO) is a versatile and cost-effective technique to obtain protective oxide coatings in light metals, although its intrinsic porosity is a drawback for long-term corrosion resistance. Sol-gel layers are pointed as a useful tool to seal PEO porosity and increase its...

Surface and Coatings Technology, 2021, Surface and Coatings Technology, 417, 11 p. ⟨10.1016/j.surfcoat.2021.127195⟩. ⟨hal-03219885⟩

• Thèse

Etude des propriétés piézoélectriques du polymère biosourcé PLA pour la récupération d'énergie vibratoire, Piezoelectric properties of biobased poly(L-lactide)stretched films for energy harvesting applications

Mohamed Aymen Ben Achour

La potentialité des films PLA produits par extrusion et étirés uniaxialement par MDO à partir des grades industriels a été investiguée pour la récupération d’énergie vibratoire par effet piézoélectrique. Une technique de caractérisation du coefficient piézoélectrique plus adaptée aux films..., The potentiality of PLA films produced by extrusion and uniaxial stretching by MDO of industrial grades has been investigated for the energy harvesting by piezoelectric transformation. A piezoelectric coefficient characterization technique suitable for polymer films was tested and validated on a...

Matériaux. Université Polytechnique Hauts-de-France, 2021. Français. ⟨NNT : 2021UPHF0025⟩. ⟨tel-03696709⟩

• Chapitre d'ouvrage

New Developments and Biomaterials in Reconstruction of Defects of the Alveolar Ridge in Implant Surgery: Part 1—Biomaterials

Thomas Wojcik, Vincent Hornez, Jean-Christophe Hornez, Joël Ferri

Bone is a tissue that has the ability of self-regeneration leading this healing process in most of the cases to a fully morphologic and functional regeneration. However, in some situations, its healing capabilities can be surpassed, and bone grafts are frequently required for implant surgery....

Innovations and New Developments in Craniomaxillofacial Reconstruction, Springer International Publishing, pp.13-20, 2021, 978-303074322-2. ⟨10.1007/978-3-030-74322-2_2⟩. ⟨hal-04475371⟩

• Communication dans un congrès

Hybrid additive/subtractive manufacturing system to prepare dense and complicated ceramic parts

Fabrice Petit, Qirong Chen, Enrique Juste, Marie Lasgorceix, Anne Leriche

As the conventional binder jetting method is limited in terms of achievable density and finish surface, a new concept of hybrid subtractive/additive manufacturing system has been recently developed. The system relies on a modified binder jetting machine which integrates a slurry-based deposition...

Laser Processing for Industry Conference, Jul 2021, Online, France. ⟨hal-04392046⟩

• Article dans une revue

MULTIPLE BOUNDED VARIATION SOLUTIONS FOR A PRESCRIBED MEAN CURVATURE EQUATION WITH NEUMANN BOUNDARY CONDITIONS

Alberto Boscaggin, Francesca Colasuonno, Colette De Coster

We prove the existence of multiple positive BV-solutions of the Neumann problem - (u'/\sqrt{1+{u'}^2})' = a(x)f (u) in (0, 1), u (0) = u (1) = 0, where a(x) > 0 and f belongs to a class of nonlinear functions whose prototype example is given by f (u) = −λu + u^p, for λ &gt...

Journal of Differential Equations, 2021, 285, pp.607-639. ⟨10.1016/j.jde.2021.03.021⟩. ⟨hal-03721320⟩

• Article dans une revue

Effect of spray drying treatment on the optical properties of Mg–Al spinel ceramics

Robin Stocky, Judith Boehmler, Sébastien Lemonnier, Pierre Gibot, Yannick Lorgouilloux, Anne Leriche

In recent years, Mg–Al spinel ceramic has been in the spotlight due to its large transparency range and goodmechanical properties. The aim here, was to control the state of agglomeration of powder to improve densifi-cation behaviour and consequently optical and mechanical properties of the ceramics...

Open Ceramics, 2021, 6, pp.100102. ⟨10.1016/j.oceram.2021.100102⟩. ⟨hal-03365216⟩

• Article dans une revue

Guaranteed Quantity of Interest Error Estimate Based on Equilibrated Flux Reconstruction

Zuqi Tang, Suyang Lou, Abdelkader Benabou, Emmanuel Creusé, Serge Nicaise, Julien Korecki, Jean-Claude Mipo

The quality of a local physical quantity obtained by the numerical method, such as the finite element method (FEM), attracts more and more attention in computational electromagnetism. Inspired by the idea of goal-oriented error estimate given for the Laplace problem, this work is devoted to a...

IEEE Transactions on Magnetics, 2021, 57 (6), pp.7402104. ⟨10.1109/TMAG.2021.3071641⟩. ⟨hal-03195757⟩