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Article dans une revue

Effect of build orientation on the manufacturing process and the properties of stereolithographic dental ceramics for crown frameworks

Marion Dehurtevent, Lieven Robberecht, Anthony Thuault, Etienne Deveaux, Anne Leriche, Fabrice G. Petit, Corentin Denis, Jean-Christophe Hornez, Pascal Béhin

Statement of problem: Stereolithography (SLA) ceramic crown frameworks are suitable for clinical use, but the impact of SLA build orientation has not been identified.Purpose: The purpose of this in vitro study was to investigate the effect of 3 build orientations on the physical and mechanical...

Journal of Prosthetic Dentistry, 2021, 125 (3), pp.453-461. ⟨10.1016/j.prosdent.2020.01.024⟩. ⟨hal-03479576⟩

Article dans une revue

Rational energy decay rate for the wave equation with delay term on the dynamical control

Gilbert Bayili, Serge Nicaise, Roland Silga

We consider the wave equation with a delay term in the dynamical control. If the delay term is small enough, we establish the strong stability of this system, but show that it is not exponentially stable. We then prove that the system with delay has the same rational decay rate than the one without...

Journal of Mathematical Analysis and Applications, 2021, 495, pp.124693 -. ⟨10.1016/j.jmaa.2020.124693⟩. ⟨hal-03492566⟩

Article dans une revue

Ferroelectric BT–PVDF Composite Thick Films for Electrical Energy Storage

Hicham Ait Laasri, Didier Fasquelle, Amina Tachafine, Jean-Claude Carru, Mohamed Rguiti, Mohamed Elaatmani

Hybrid composites have been elaborated by incorporation of BaTiO3 (BT) inorganic nanoparticles into polyvinylidene fluoride (PVDF) polymer. BT–PVDF composite thick films with different volume fractions of BT (0%, 7%, 15%, and 30%) were deposited by spin-coating onto Pt/SiO2/Si substrates. The...

Journal of Electronic Materials, 2021, Special Section: TMS2020 Advanced Microelectronic Packaging, Emerging Interconnection Technology, and Pb-free Solder., 50 (3), pp.1132-1139. ⟨10.1007/s11664-020-08657-y⟩. ⟨hal-03703168⟩

Article dans une revue

Lagrangian submanifolds in complex space forms satisfying equality in the optimal inequality involving δ(2 , … , 2)

Bang-Yen Chen, Luc Vrancken, Xianfeng Wang

It was proved in Chen and Dillen (J Math Anal Appl 379(1), 229–239, 2011) and Chen et al. (Differ Geom Appl 31(6), 808–819, 2013) that every Lagrangian submanifold M of a complex space form M~ n(4 c) with constant holomorphic sectional curvature 4c satisfies the following optimal inequality: δ(2,…,...

Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, 2021, 62 (1), pp.251-264. ⟨10.1007/s13366-020-00541-4⟩. ⟨hal-03722520⟩

Article dans une revue

Laser-induced and space-selective crystallization of yttrium aluminum garnet crystal from SiO 2 /Al 2 O 3 /Y 2 O 3 /KF/Na 2 O/AlF 3 /B 2 O 3 glass system

Azadeh Doosti, Ashkan Keshavarzi, Nazila Safari Yazd, Anne Leriche

Femtosecond laser-induced crystallization in glasses is of interest because of its significant applications in optics and photonics. Micro-YAG crystals produced by controlled crystallization from a glassy matrix is one of the studied material to achieve this goal. In this work, a three-dimensional...

CrystEngComm, 2021, 23 (5), pp.1110-1116. ⟨10.1039/d0ce01165g⟩. ⟨hal-03480455⟩

Article dans une revue

Assessment of nanostructure, optical, dielectric and modulus response by Bi substitution in La1−xBixNi0.5Ti0.5O3 (x = 0.0–0.2) system

S. Gharbi, R. Dhahri, E. Dhahri, P. Sanguino, B. Costa, R. Barillé, Mohamed Rguiti, E.K. Hlil

Perovskite-type oxides La1-xBixNi0.5Ti0.5O3 (x = 0.0, 0.2) were prepared by the sol–gel method employing the citric acid route and sintered at 820° C. The structural behavior analyzed by X-ray diffraction proved that all the samples have the same crystallographic structure (space group Pnma). The...

The European Physical Journal Plus, 2021, 136 (2), pp.186. ⟨10.1140/epjp/s13360-021-01134-3⟩. ⟨hal-03137289⟩

Article dans une revue

Use of residual waste glass in an alkali-activated binder – Structural characterization, environmental leaching behavior and comparison of reactivity

Abdelhadi Bouchikhi, Yannick Mamindy-Pajany, Walid Maherzi, Cyrille Albert-Mercier, Hamza El-Moueden, Mahfoud Benzerzour, Arne Peys, Nor-Edine Abriak

Waste glass based geopolymers have a high potential in the future as an eco-friendly inorganic binder. However, limited studies are available on the use of the residue of waste glass recycling in this type of binder. This work investigates the valorization of Residual Waste Glass (RWG) (the final...

Journal of Building Engineering, 2021, 34, pp.101903. ⟨10.1016/j.jobe.2020.101903⟩. ⟨hal-03360292⟩

Article dans une revue

On Product Minimal Lagrangian Submanifolds in Complex Space Forms

Xiuxiu Cheng, Zejun Hu, Marilena Moruz, Luc Vrancken

In this paper we consider minimal Lagrangian submanifolds in n-dimensional complex space forms. More precisely, we study such submanifolds which, endowed with the induced metrics, write as a Riemannian product of two Riemannian manifolds, each having constant sectional curvature. As the main result...

The Journal of Geometric Analysis, 2021, 31 (2), pp.1934-1964. ⟨10.1007/s12220-019-00328-7⟩. ⟨hal-03722540⟩

Thèse

Stabilization of some coupled systems involving (thermo-) viscoelastic/elastic transmission problems or telegraph equations in bounded domains or in networks, Stabilisation de quelques systèmes couplés impliquant problèmes de transmission (thermo-) viscoélastiques/élastiques ou équations télégraphiques dans des domaines bornés ou sur réseaux

Alaa Hayek

This thesis is concerned with the stabilization of some coupled systems that involves (thermo-) viscoelastic/elastic transmission problems and telegraph equations in bounded domains or in networks. First, we consider the stability of a system of weakly coupled wave equations with one or two local..., Cette thèse s’intéresse a la stabilisation de certains systèmes couples impliquant des problèmes de transmission (thermo-) viscoélastique/élastique et des équations télégraphiques dans des domaines bornes ou sur réseaux. Dans un premier temps, nous considérons la stabilité d’un système d’équations...

Modeling and Simulation. Université Polytechnique Hauts-de-France; Université Libanaise, 2021. English. ⟨NNT : 2021UPHF0005⟩. ⟨tel-03610018⟩

Article dans une revue

Four dimensional biharmonic hypersurfaces in nonzero space forms have constant mean curvature

Zhida Guan, Haizhong Li, Luc Vrancken

In this paper, through making careful analysis of Gauss and Codazzi equations, we prove that four dimensional biharmonic hypersurfaces in nonzero space forms have constant mean curvature. Our result gives the positive answer to the conjecture proposed by Balmuş–Montaldo–Oniciuc in 2008 for four...

Journal of Geometry and Physics, 2021, 160, pp.103984. ⟨10.1016/j.geomphys.2020.103984⟩. ⟨hal-03722617⟩