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6 papers · 1 filter
A Hamilton-Jacobi approach to junction problems and application to traffic flows
Cyril Imbert, Régis Monneau, Hasnaa Zidani
This paper is concerned with the study of a model case of first order Hamilton-Jacobi equations posed on a "junction", that is to say the union of a finite number of half-lines wit…
Controlled Betatron X-Ray Radiation from Tunable Optically Injected Electrons
S. Corde, K. Ta Phuoc, R. Fitour +5
The features of Betatron x-ray emission produced in a laser-plasma accelerator are closely linked to the properties of the relativistic electrons which are at the origin of the rad…
Non-invasive characterization of transverse beam emittance of electrons from a laser-plasma wakefield accelerator in the bubble regime using betatron x-ray radiation
S. Kneip, C. McGuffey, J. L. Martins +17
We propose and use a technique to measure the transverse emittance of a laser-wakefield accelerated beam of relativistic electrons. The technique is based on the simultaneous measu…
Piezoelectric coupling in energy-harvesting fluttering flexible plates : linear stability analysis and conversion efficiency
Olivier Doare, Sebastien Michelin
This paper investigates the energy harvested from the flutter of a plate in an axial flow by making use of piezoelectric materials. The equations for fully-coupled linear dynamics…
Mapping the X-Ray Emission Region in a Laser-Plasma Accelerator
S. Corde, C. Thaury, K. Ta Phuoc +13
The x-ray emission in laser-plasma accelerators can be a powerful tool to understand the physics of relativistic laser-plasma interaction. It is shown here that the mapping of beta…
On stochastic calculus related to financial assets without semimartingales
Rosanna Coviello, Cristina Di Girolami, Francesco Russo
This paper does not suppose a priori that the evolution of the price of a financial asset is a semimartingale. Since possible strategies of investors are self-financing, previous p…