Publicaciones

Affichage de 881 à 890 sur 1005

OUV

Géométrie euclidienne élémentaire

Aziz El Kacimi Alaoui

Cet ouvrage est une introduction élémentaire à la géométrie affine euclidienne (essentiellement plane). Il est issu de cours professés par l'auteur aux étudiants de la Licence 3 et du Master enseignement. Sa lecture ne requiert que les notions de base de l'algèbre linéaire. Plusieurs...

Ellipses, pp.240, 2012, Références sciences, 978-2-7298-7194-9. ⟨hal-03234803⟩

COMM

Low-voltage active diode rectifier for pyroelectric harvesting cell

Mounir Amokrane, Arnaud Baysse, Bertrand Nogarede, Mohamed Rguiti

This paper studies pyroelectric conversion using PLZT cell and diode rectifier. The objective of this work is to observe the possibility of a power supply via an active element. For this purpose, an active diode based rectifier for pyroelectric harvesting systems is presented, simulated and tested...

IECON 2012: 38th Annual Conference of the IEEE Industrial Electronics Society, Montréal, Canada, 2012, Montréal, Canada. ⟨10.1109/IECON.2012.6388574⟩. ⟨hal-04133999⟩

ART

Residual-based a posteriori estimators for the A/phi magnetodynamic harmonic formulation of the Maxwell system

Emmanuel Creusé, Serge Nicaise, Zuqi Tang, Yvonnick Le Menach, Nicolas Nemitz, Francis Piriou

This paper is devoted to the derivation of an a posteriori residual-based error estimator for the A/phi magnetodynamic harmonic formulation of the Maxwell system. The weak continuous and discrete formulations are established, and the well-posedness of both of them is addressed. Some useful...

Mathematical Models and Methods in Applied Sciences, 2012, 22 (5), pp.30. ⟨10.1142/S021820251150028X⟩. ⟨hal-00562073⟩

ART

Stability results for the approximation of weakly coupled wave equations

Farah Abdallah, Serge Nicaise, Julie Valein, Ali Wehbe

In this note, we consider the approximation of two coupled wave equations with internal damping. Our goal is to damp the spurious high frequency modes by introducing numerical viscosity terms in the approximation schemes. With these viscosity terms, we show the exponential or polynomial decay of...

Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, 2012, 350 (1-2), pp.29-34. ⟨10.1016/j.crma.2011.12.004⟩. ⟨hal-00755739⟩

ART

Spectral analysis and stabilization of a chain of serially connected Euler-Bernoulli beams and strings

Kais Ammari, Denis Mercier, Virginie Régnier, Julie Valein

We consider N Euler-Bernoulli beams and N strings alternatively connected to one another and forming a particular network which is a chain beginning with a string. We study two stabilization problems on the same network and the spectrum of the corresponding conservative system: the characteristic...

Communications on Pure and Applied Analysis, 2012, 11 (2), pp.785--807. ⟨10.3934/cpaa.2012.11.785⟩. ⟨hal-00644058⟩

ART

Analytic Regularity for Linear Elliptic Systems in Polygons and Polyhedra

Martin Costabel, Monique Dauge, Serge Nicaise

We prove weighted anisotropic analytic estimates for solutions of second order elliptic boundary value problems in polyhedra. The weighted analytic classes which we use are the same as those introduced by Guo in 1993 in view of establishing exponential convergence for <i>hp</i> finite...

Mathematical Models and Methods in Applied Sciences, 2012, 22 (8), 63 p. ⟨10.1142/S0218202512500157⟩. ⟨hal-00454133v3⟩

OUV

Curves and Surfaces, 7th International Conference, Avignon, France, June 24-30, 2010

Jean-Daniel Boissonnat, Patrick Chenin, Albert Cohen, Christian Gout, Tom Lyche, Marie-Laurence Mazure, Larry L. Schumaker

This volume constitutes the thoroughly refereed post-conference proceedings of the 7th International Conference on Curves and Surfaces, held in Avignon, in June 2010. The conference had the overall theme: "Representation and Approximation of Curves and Surfaces and Applications". The 39...

Springer, pp.748, 2012, 978-3642274121. ⟨10.1007/978-3-642-27413-8⟩. ⟨hal-00872475⟩

ART

Infinitely many radial solutions of a mean curvature equation in Lorentz-Minkowski space

Denis Bonheure, Colette De Coster, Ann Derlet

In this paper, we show that the quasilinear equation - div(\frac{\nabla u}{\sqrt{1-|\nabla u|^{2}}}) = |u|^{\alpha-2}u, in R^N has a positive smooth radial solution at least for any α > 2 = 2N/(N − 2), N ≥ 3. Our approach is based on the study of the optimizers for the best constant in the...

Rendiconti dell'Istituto di Matematica dell'Universita di Trieste: an International Journal of Mathematics, 2012, 44 (1), pp.259-284. ⟨hal-03721671⟩

ART

Influence of temperature on the hydration products of low pH cements

T. T. H. Bach, C. Cau Dit Coumes, Isabelle Pochard, Cyrille Albert-Mercier, B. Revel, André Nonat

The chemical evolution of two hydrated "low pH" binders prepared from binary (60% Portland cement + 40% silica fume) or ternary (37.5% Portland cement +32.5% silica fume + 30% fly-ash) mixtures was characterized over one year at 20 degrees C. 50 degrees C, and 80 degrees C. The main...

Cement and Concrete Research, 2012, 42 (6), pp.805-817. ⟨10.1016/j.cemconres.2012.03.009⟩. ⟨hal-00760349⟩

ART

Existence of solutions for second-order differential inclusions involving proximal normal cones

Frederic Bernicot, Juliette Venel

In this work, we prove global existence of solutions for second order differential problems in a general framework. More precisely, we consider second order differential inclusions involving proximal normal cone to a set-valued map. This set-valued map is supposed to take admissible values (so in..., Dans cet article on démontre un résultat dʼexistence globale de solutions pour des inclusions différentielles du second ordre. Ou consideré plus précisément des inclusions différentielles du second ordre faisant apparaître le cône proximal normal dʼun ensemble C dépendant du temps. La multifonction...

Journal de Mathématiques Pures et Appliquées, 2012, 98 (3), pp.257-294. ⟨10.1016/j.matpur.2012.05.001⟩. ⟨hal-00491094⟩