Publications

• Article dans une revue

Stability results for second-order evolution equations with switching time-delay

Serge Nicaise, Cristina Pignotti

We consider second-order evolution equations in an abstract setting with intermittently delayed/not-delayed damping. We give sufficient conditions for asymptotic and exponential stability, improving and generalizing our previous results from Nicaise and Pignotti (Adv Differ Equ 17:879-902, 2012).…

Journal of Dynamics and Differential Equations, 2014, 26 (3), pp.781-803. ⟨10.1007/s10884-014-9382-1⟩. ⟨hal-03166065⟩

• Pré-publication, Document de travail

Remark on stabilization of second order evolution equations by unbounded dynamic feedbacks and applications

Zainab Abbas, Kais Ammari, Denis Mercier

In this paper we consider second order evolution equations with unbounded dynamic feedbacks. Under a regularity assumption we show that observability properties for the undamped problem imply decay estimates for the damped problem. We consider both uniform and non uniform decay properties.

2014. ⟨hal-01022854⟩

• Communication dans un congrès

Helmholtz equation in Highly Heterogeneous Media

Hélène Barucq, Henri Calandra, Théophile Chaumont-Frelet, Christian Gout

11th World Congress on Computational Mechanics, Eccomas, Jul 2014, Barcelone, Spain. ⟨hal-01100492⟩

• Communication dans un congrès

Noncommutative Geometry on enveloping algebra and its applications to Physics

Dimitri Gurevich

XXXIII Max Born Symposium, Jul 2014, Wroclaw, Poland. ⟨hal-03155729⟩

• Article dans une revue

Improvement in the predictivity of squeal simulations: Uncertainty and robustness

Thierry Tison, Arnaud Heussaff, Franck Massa, Isabelle Turpin, R.F. Nunes

The objective of this paper is to improve the predictivity of squeal simulations by introducing uncertainty and robustness concepts during simulations. Complex eigenvalue analysis is a traditional way to detect numerically the unstable modes that can be associated with extensive vibration and noise…

Journal of Sound and Vibration, 2014, 333 (15), pp.3394-3412. ⟨10.1016/j.jsv.2014.03.011⟩. ⟨hal-03184580⟩

• Article dans une revue

Improvement of the hydroxyapatite mechanical properties by direct microwave sintering in single mode cavity

Anthony Thuault, Etienne Savary, Jean-Christophe Hornez, Gérard Moreau, Michel Descamps, S. Marinel, Anne Leriche

The main purpose of this study consists in investigating the direct microwave sintering of hydroxyapatite (HA) in a single mode cavity. Firstly, stoichiometric HA powders were synthesized by a coprecipitation method from diammonium phosphate and calcium nitrate solutions and shaped by slip-casting…

Journal of the European Ceramic Society, 2014, 34 (7), pp.1865-1871. ⟨10.1016/j.jeurceramsoc.2013.12.035⟩. ⟨hal-02449723⟩

• Communication dans un congrès

Radially symmetric solutions of an anisotropic mean curvature equation modeling the corneal shape

Chiara Corsato, Colette De Coster, P. Omari

AIMS Conference on Dynamical Systems, Differential Equations and Applications, American institute of mathematical sciences; Instituto de Ciencias Matemáticas (ICMAT), Jul 2014, Madrid, Spain. ⟨hal-03227738⟩

• Communication dans un congrès

Potentialities for aeronautics of the development of an active core PZT fibre

J.L. Petitniot, Aurélien Dolay, Christian Courtois, Mohamed Rguiti, Sophie d'Astorg

In a more less near future, aeronautics could largely use light morphing structures which can advantageously replace the classical heavy actuation able to improve aircraft agility. This breaking technology can be easily initially evaluated without risk on drones. Existing laminar actuators using…

ACTUATOR 2014, Jun 2014, Brême, Germany. ⟨hal-01068701⟩

• Communication dans un congrès

Deformation Quantization and Braded Geometry : with Joseph and after

Dimitri Gurevich

By Braided Geometry I mean a sort of Noncommutative Geometry dealing with braidings, i.e. solutions to Quantum Yang–Baxter Equation. In a sense, it can be treated as a far generalization of super-theory. The main rˆole in this Geometry is played by the so-called Reflection Equation Al-gebra. This…

”Quantum Groups, Deformations, and Geometry” - Joseph Donin Memorial Conference, Jun 2014, Ramat Gan, Israel. ⟨hal-03155722⟩

• Communication dans un congrès

La pluridisciplinarité par exemple

Jean-Paul Becar, Benoît Delporte

41e colloque pédagogique national GEII, Jun 2014, Cergy-Pontoise, France. p. 9-16. ⟨hal-03163398⟩