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74 papers · 1 filter
Anisotropic shrinkage and finite strains in confined frictional contacts
Marco Ceglie, Cosimo Mandriota, Giuseppe Carbone +2
We report on an experimental investigation of the interplay between friction, contact geometry and finite strains for smooth frictional contacts between rigid spherical glass probe…
Hydrodynamic Instabilities of Active Jets
Marco Vona, Isabelle Eisenmann, Nicolas Desprat +3
Using a combination of theory, experiments, and numerical simulations, we investigate the stability of coherent structures in a suspension of strongly aligned active swimmers. We s…
Pure hydrodynamic instabilities in active jets of "puller" microalgae
Isabelle Eisenmann, Marco Vona, Nicolas Desprat +3
Active fluids can develop spontaneous flow instabilities and complex patterns. However, spatio-temporal control of active particles has remained challenging, despite its relevance…
Initial Stages of Rejuvenation of Vapor-Deposited Glasses during Isothermal Annealing: Contrast Between Experiment and Simulation
Megan E. Tracy, Benjamin J. Kasting, Cecilia Herrero +4
Physical vapor deposition can prepare organic glasses with high kinetic stability. When heated, these glassy solids slowly transform into the supercooled liquid in a process known…
Traveling Fronts and the Smoothing of the Collective-Motion Phase Transition in Vibrated Polar Disks
Caleb J. Anderson Olivier Dauchot, Alberto Fernandez-Nieves
One of the most well known features of active matter is the tendencey of self-propelled particles to undergo system-wide collective motion. With low enough rotational noise or high…
A silicone-based slippery polymer coating with humidity-dependent nanoscale topography
M. Callau, C. Fajolles, J. Leroy +2
Hypothesis: Slippery Omniphobic Covalently Attached Liquids (SOCAL) have been proposed for making omnirepellent thin films of self-assembled dimethylsiloxane polymer brushes grafte…