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92 papers · 1 filter
Four-winged flapping flyer in forward flight
Ramiro Godoy-Diana, Prasann Jain, Mariana Centeno +2
We study experimentally a four-winged flapping flyer with chord-wise flexible wings in a self-propelled setup. For a given physical configuration of the flyer (i.e. fixed distance…
Amplified short-wavelength light scattered by relativistic electrons in the laser-induced optical lattice
I. A. Andriyash, V. T. Tikhonchuk, V. Malka +2
The scheme of the XUV/X-ray free electron laser based on the optical undulator created by two overlapped transverse laser beams is analyzed. A kinetic theoretical description and a…
Eliashberg analysis of the optical conductivity in superconducting PrCuO ()
E. Schachinger, G. Chanda, R. P. S. M. Lobo +2
Superconducting PrCuO, films with structure and a of 27 K have been investigated by millimeter-wave transmission and broadband (infrared-to-ult…
Large-amplitude undulatory swimming near a wall
Rafael Fernández-Prats, Veronica Raspa, Benjamin Thiria +2
The propulsive dynamics of a flexible undulating foil in a self-propelled swimming configuration near a wall is studied experimentally. Measurements of the swimming speed and the p…
Theoretical guarantees for approximate sampling from smooth and log-concave densities
Arnak S. Dalalyan
Sampling from various kinds of distributions is an issue of paramount importance in statistics since it is often the key ingredient for constructing estimators, test procedures or…
Convergence of Nonlinear Observers on R^n with a Riemannian Metric (Part I)
Ricardo G. Sanfelice, Laurent Praly
We study how convergence of an observer whose state lives in a copy of the given system's space can be established using a Riemannian metric. We show that the existence of an obser…