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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR58 papers
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33 papers
Nonlinear envelope equation and nonlinear Landau damping rate for a driven electron plasma wave
Didier Bénisti, Olivier Morice, Laurent Gremillet +1
In this paper, we provide a theoretical description, and calculate, the nonlinear frequency shift, group velocity and collionless damping rate, , of a driven electron plasma wav…
On probabilistic aspects in the dynamic degradation of ductile materials
Herve Trumel, Francois Hild, Gilles Roy +2
Dynamic loadings produce high stress waves leading to the spallation of ductile materials such as aluminum, copper, magnesium or tantalum. The main mechanism used herein to explain…
Precision measurement of the electric quadrupole moment of 31Al and determination of the effective proton charge in the sd-shell
M. De Rydt, G. Neyens, K. Asahi +20
he electric quadrupole coupling constant of the 31Al ground state is measured to be nu_Q = |eQV_{zz}/h| = 2196(21)kHz using two different beta-NMR (Nuclear Magnetic Resonance) tech…
Infinite-contrast periodic composites with strongly nonlinear behavior: Effective-medium theory versus full-field simulations
Martin I. Idiart, Francois Willot, Yves-Patrick Pellegrini +1
This paper presents a combined numerical-theoretical study of the macroscopic behavior and local field distributions in a special class of two-dimensional periodic composites with…
Study of the volume and spin collapse in orthoferrite LuFeO_3 using LDA+U
Donat J. Adams, Bernard Amadon
Rare earth (R) orthoferrites RFeO_3 exhibit large volume transitions associated with a spin collapse. We present here ab initio calculations on LuFeO_3. We show that taking into ac…
Co-evolution of density and topology in a simple model of city formation
Marc Barthelemy, Alessandro Flammini
We study the influence that population density and the road network have on each others' growth and evolution. We use a simple model of formation and evolution of city roads which…