Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Baskaran, Aparna"'
Active fluids generate spontaneous, often chaotic mesoscale flows. Harnessing these flows to drive embedded soft materials into structures with controlled length scales and lifetimes is a key challenge at the interface between the fields of active ma
Externí odkaz:
http://arxiv.org/abs/2410.05555
Being intrinsically nonequilibrium, active materials can potentially perform functions that would be thermodynamically forbidden in passive materials. However, active systems have diverse local attractors that correspond to distinct dynamical states,
Externí odkaz:
http://arxiv.org/abs/2408.14596
We apply optimal control theory to a model of a polar active fluid (the Toner-Tu model), with the objective of driving the system into particular emergent dynamical behaviors or programming switching between states on demand. We use the effective sel
Externí odkaz:
http://arxiv.org/abs/2405.07942
Autor:
Tran, Phu N., Ray, Sattvic, Lemma, Linnea, Li, Yunrui, Sweeney, Reef, Baskaran, Aparna, Dogic, Zvonimir, Hong, Pengyu, Hagan, Michael F.
Deep learning-based optical flow (DLOF) extracts features in adjacent video frames with deep convolutional neural networks. It uses those features to estimate the inter-frame motions of objects at the pixel level. In this article, we evaluate the abi
Externí odkaz:
http://arxiv.org/abs/2404.15497
Autor:
Li, Yunrui, Zarei, Zahra, Tran, Phu N., Wang, Yifei, Baskaran, Aparna, Fraden, Seth, Hagan, Michael F., Hong, Pengyu
Active nematics are dense systems of rodlike particles that consume energy to drive motion at the level of the individual particles. They exist in natural systems like biological tissues and artificial materials such as suspensions of self-propelled
Externí odkaz:
http://arxiv.org/abs/2310.12449
Using a minimal hydrodynamic model, we theoretically and computationally study active gels in straight and annular two-dimensional channels subject to an externally imposed shear. The gels are isotropic in the absence of externally- or activity-drive
Externí odkaz:
http://arxiv.org/abs/2307.12910
Autor:
Joshi, Chaitanya, Zarei, Zahra, Norton, Michael M., Fraden, Seth, Baskaran, Aparna, Hagan, Michael F.
Confinement can be used to systematically tame turbulent dynamics occurring in active fluids. Although periodic channels are the simplest geometries to study confinement numerically, the corresponding experimental realizations require closed racetrac
Externí odkaz:
http://arxiv.org/abs/2304.04895
We use coarse-grained molecular dynamics simulations to study the motility of a 2D vesicle containing self-propelled rods, as a function of the vesicle bending rigidity and the number density, length, and activity of the enclosed rods. Above a thresh
Externí odkaz:
http://arxiv.org/abs/2303.16095
Autor:
Joshi, Chaitanya, Ray, Sattvic, Lemma, Linnea, Varghese, Minu, Sharp, Graham, Dogic, Zvonimir, Baskaran, Aparna, Hagan, Michael F.
Two-dimensional active nematics are often modeled using phenomenological continuum theories that describe the dynamics of the nematic director and fluid velocity through partial differential equations (PDEs). While these models provide a statisticall
Externí odkaz:
http://arxiv.org/abs/2202.12854
Autor:
Najma, Bibi, Varghese, Minu, Tsidilkovski, Lev, Lemma, Linnea, Baskaran, Aparna, Duclos, Guillaume
Cells accomplish diverse functions using the same molecular building blocks, from setting up cytoplasmic flows to generating mechanical forces. In particular, transitions between these non-equilibrium states are triggered by regulating the expression
Externí odkaz:
http://arxiv.org/abs/2112.11364