Zobrazeno 1 - 10
of 5 242
pro vyhledávání: '"Bec, A."'
The self-organization of active particles on a two-dimensional single-occupancy lattice is investigated, with an emphasis on the effects of boundary confinement and the influence of an external mean fluid flow. The study examines collective behaviors
Externí odkaz:
http://arxiv.org/abs/2409.15286
Autor:
Bec, Jérémie, Vallée, Robin
Heavy particles suspended in turbulent flow possess inertia and are ejected from violent vortical structures by centrifugal forces. Once piled up along particle paths, this small-scale mechanism leads to an effective large-scale drift. This phenomeno
Externí odkaz:
http://arxiv.org/abs/2404.15679
Publikováno v:
A&A 685, L4 (2024)
Dust particles in protoplanetary disks, lacking support from pressure, rotate at velocities exceeding those of the surrounding gas. Consequently, they experience a head-wind from the gas that drives them toward the central star. Radial drift occurs o
Externí odkaz:
http://arxiv.org/abs/2404.11544
Autor:
Pinna, Enrico, Rossi, Fabio, Agapito, Guido, Puglisi, Alfio, Plantet, Cédric, Ghose, Essna, Bec, Matthieu, Bonaglia, Marco, Briguglio, Runa, Brusa, Guido, Carbonaro, Luca, Cavallaro, Alessandro, Christou, Julian, Durney, Olivier, Ertel, Steve, Esposito, Simone, Grani, Paolo, Guerra, Juan Carlos, Hinz, Philip, Lefebvre, Michael, Mazzoni, Tommaso, Mechtley, Brandon, Miller, Douglas L., Montoya, Manny, Power, Jennifer, Rothberg, Barry, Taylor, Gregory, Vaz, Amali, Xompero, Marco, Zhang, Xianyu
Publikováno v:
AO4ELT7 proceedings 2023
The SOUL systems at the Large Bincoular Telescope can be seen such as precursor for the ELT SCAO systems, combining together key technologies such as EMCCD, Pyramid WFS and adaptive telescopes. After the first light of the first upgraded system on Se
Externí odkaz:
http://arxiv.org/abs/2310.14447
Autor:
Louise Bec, Romain Herber, Sébastien Bailly, Thi Hong Van Ngo, Renaud Tamisier, Jean-Louis Pépin, Florent Aptel, Christophe Chiquet
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract The purpose of this study is to objectively assess by polysomnography total sleep time and sleep macrostructure in glaucomatous versus non-glaucomatous individuals after adjusting for possible confounding factors affecting the quality of sle
Externí odkaz:
https://doaj.org/article/8826ddae95b44ff5a37671e07c289249
We compute how small input perturbations affect the output of deep neural networks, exploring an analogy between deep networks and dynamical systems, where the growth or decay of local perturbations is characterised by finite-time Lyapunov exponents.
Externí odkaz:
http://arxiv.org/abs/2306.12548
Autor:
Allende, Sofia, Bec, Jeremie
Non-spherical particles transported by turbulent flow have a rich dynamics that combines their translational and rotational motions. Here, the focus is on small, heavy, inertial particles with a spheroidal shape fully prescribed by their aspect ratio
Externí odkaz:
http://arxiv.org/abs/2304.11139
Long, flexible fibers transported by a turbulent channel flow sample non-linear variations of the fluid velocity along their length. As the fibers tumble and collide with the boundaries, they bounce off with an impulse that propels them toward the ce
Externí odkaz:
http://arxiv.org/abs/2304.09838
Publikováno v:
Annual Review of Fluid Mechanics 56 (2024)
When very small particles are suspended in a fluid in motion, they tend to follow the flow. How such tracer particles are mixed, transported, and dispersed by turbulent flow has been successfully described by statistical models. Heavy particles, with
Externí odkaz:
http://arxiv.org/abs/2304.01312
This work aims at finding optimal navigation policies for thin, deformable microswimmers that progress in a viscous fluid by propagating a sinusoidal undulation along their slender body. These active filaments are embedded in a prescribed, non-homoge
Externí odkaz:
http://arxiv.org/abs/2302.05081