Results 51 to 60 of about 3,171,010 (214)
Defect order in active nematics on a curved surface
New Journal of Physics, 2020 We investigate the effects of extrinsic curvature on the turbulent behavior of a 2D active nematic confined to the surface of a cylinder. The surface of a cylinder has no intrinsic curvature and only extrinsic curvature.
D J G Pearce
doaj +1 more source
Unwinding of a cholesteric liquid crystal and bidirectional surface anchoring [PDF]
, 2013 We examine the influence of bidirectional anchoring on the unwinding of a planar cholesteric liquid crystal induced by the application of a magnetic field. We consider a liquid crystal layer confined between two plates with the helical axis perpendicular
McKay, Geoffrey
core +4 more sources
Critical points and symmetries of a free energy function for biaxial nematic liquid crystals [PDF]
, 2015 We describe a general mean field model for the free energy function for a homogeneous medium of mutually interacting molecules, based on the formalism for a biaxial nematic liquid crystal set out by Katriel et al (1986) in an influential paper in Liquid ...
Chillingworth, David +2 more
core +1 more source
Active Self-Organization of Actin-Microtubule Composite Self-Propelled Rods
Frontiers in Physics, 2018 Spontaneous self-organization of active matter has been demonstrated in a number of biological systems including bacteria, cells, and cytoskeletal filaments.
Leila Farhadi +4 more
doaj +1 more source
Фізика і хімія твердого тіла, 2021 The paper presents the results of the study of the parameters of the highly sensitive active medium of the NO2 sensor based on a cholesterol-nematic mixture with an admixture of carbon nanotubes.
Z.M. Mykytyuk +3 more
doaj +1 more source
Excitable Patterns in Active Nematics
Physical Review Letters, 2011 We analyze a model of mutually-propelled filaments suspended in a two-dimensional solvent. The system undergoes a mean-field isotropic-nematic transition for large enough filament concentrations and the nematic order parameter is allowed to vary in space and time.
Giomi, Luca +3 more
openaire +6 more sources
Active nematic–isotropic interfaces in channels [PDF]
Soft Matter, 2019 The hydrodynamic behavior of the interface between nematic (N) and isotropic (I) phases of a confined active liquid crystal is investigated using numerical simulations.
Rodrigo C. V. Coelho +2 more
openaire +3 more sources
Colloquium : disclination loops, point defects, and all that in nematic liquid crystals [PDF]
, 2012 The homotopy theory of topological defects is a powerful tool for organizing and unifying many ideas across a broad range of physical systems. Recently, experimental progress was made in controlling and measuring colloidal inclusions in liquid ...
Kamien, Randall +5 more
core +1 more source
Active Nematics Are Intrinsically Phase Separated [PDF]
Physical Review Letters, 2006 Two-dimensional nonequilibrium nematic steady states, as found in agitated granular-rod monolayers or films of orientable amoeboid cells, were predicted [Europhys. Lett. {\bf 62} (2003) 196] to have giant number fluctuations, with standard deviation proportional to the mean.
Mishra, Shradha, Ramaswamy, Sriram
openaire +3 more sources
GiantA surface in contact with the isotropic phase of a passive liquid crystal can induce nematic order over distances that range from microscopic to macroscopic when the nematic-isotropic interface undergoes an orientational-wetting transition.
Rodrigo C.V. Coelho +3 more
doaj +1 more source