Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Loisy, Aurore"'
Autor:
Loisy, Aurore, Heinonen, Robin A.
Publikováno v:
Eur. Phys. J. E 46, 17 (2023)
The olfactory search POMDP (partially observable Markov decision process) is a sequential decision-making problem designed to mimic the task faced by insects searching for a source of odor in turbulence, and its solutions have applications to sniffer
Externí odkaz:
http://arxiv.org/abs/2302.00706
Publikováno v:
Journal of Fluid Mechanics 840, 215-237 (2018)
We investigate the dispersion of a passive scalar such as the concentration of a chemical species, or temperature, in homogeneous bubbly suspensions, by determining an effective diffusivity tensor. Defining the longitudinal and transverse components
Externí odkaz:
http://arxiv.org/abs/2301.00028
Publikováno v:
J. Chem. Phys. 150, 104902 (2019)
We consider a confined sheared active polar liquid crystal with a uniform orientation and study the effect of variations in the magnitude of polarization. Restricting our analysis to one-dimensional geometries, we demonstrate that with asymmetric bou
Externí odkaz:
http://arxiv.org/abs/2212.05534
Autor:
Loisy, Aurore, Eloy, Christophe
Publikováno v:
Proc. R. Soc. A. 478, 20220118 (2022)
Infotaxis is a popular search algorithm designed to track a source of odor in a turbulent environment using information provided by odor detections. To exemplify its capabilities, the source-tracking task was framed as a partially observable Markov d
Externí odkaz:
http://arxiv.org/abs/2112.10861
Publikováno v:
Phys. Rev. Lett. 129, 064502 (2022)
In marine plankton, many swimming species can perceive their environment with flow sensors. Can they use this flow information to travel faster in turbulence? To address this question, we consider plankters swimming at constant speed, whose goal is t
Externí odkaz:
http://arxiv.org/abs/2110.10409
To develop a minimal model for a cell moving in a crowded environment such as in tissue, we investigate the response of a liquid drop of active matter moving on a flat rigid substrate to forces applied at its boundaries. We consider two different sel
Externí odkaz:
http://arxiv.org/abs/2107.14556
Numerous physical models have been proposed to explain how cell motility emerges from internal activity, mostly focused on how crawling motion arises from internal processes. Here we offer a classification of self-propulsion mechanisms based on gener
Externí odkaz:
http://arxiv.org/abs/2001.03970
We report on a new mode of self-propulsion exhibited by compact drops of active liquids on a substrate which, remarkably, is tractionless, i.e., which imparts no mechanical stress locally on the surface. We show, both analytically and by numerical si
Externí odkaz:
http://arxiv.org/abs/1912.05051
Autor:
Loisy, Aurore
Cette thèse est consacrée aux écoulements homogènes de bulles, ainsi qu'à leur couplage avec le transport d'un scalaire et la turbulence. Elle s'intéresse plus spécifiquement aux effets de taille finie, des interactions hydrodynamiques et de l
Externí odkaz:
http://www.theses.fr/2016LYSE1142/document
Publikováno v:
Phys. Rev. Lett. 121, 018001 (2018)
We point out unconventional mechanical properties of confined active fluids, such as bacterial suspensions, under shear. Using a minimal model of an active liquid crystal with no free parameters, we predict the existence of a window of bacteria conce
Externí odkaz:
http://arxiv.org/abs/1803.00533