搜索结果: 1-15 共查到“理学 filaments”相关记录16条 . 查询时间(0.07 秒)
A new model describes the coordination of beating cilia allowing to predict their functional behavior. Researchers analyzed the formation of metachronal waves in arrays of cilia and how external cues ...
Galaxies grow by accumulating gas from their surroundings and converting it to stars, but the details of this process have remained murky. New observations, made using the Keck Cosmic Web Imager at th...
Reca Dynamics & the SOS Response in Escherichia Coli: Cellular Limitation of Inducing Filaments
DNA damage RadA RecA SOS response
2015/1/28
During the course of normal DNA replication, replication forks are constantly encountering "housekeeping" types of routine damage to the DNA template that may cause the forks to stall or collapse. One...
We present a catalogue of 17 filamentary X-ray features located within a 68 × 34 arcmin2 view centred on the Galactic Centre region from images taken by Chandra. These features are described by their ...
Autonomous motility of active filaments with nonlocal Stokesian hydrodynamics
Autonomous motility of active filaments nonlocal Stokesian hydrodynamics Biomolecules
2012/5/3
We simulate the non-local Stokesian hydrodynamics of an elastic filament with a permanent distribution of stresslets along its contour. A bending instability of an initially straight filament induces ...
Dense core formation by fragmentation of velocity-coherent filaments in L1517
Stars: formation - ISM: clouds - molecules - kinematics and dynamics - structure - Radio lines: ISM
2011/9/28
Context. Low-mass star-forming cores differ from their surrounding molecular cloud in turbulence, shape, and density structure. Aims. We aim to understand how dense cores form out of the less dense cl...
Global existence and collisions for symmetric configurations of nearly parallel vortex filaments
Global existence and collisions parallel vortex filaments Analysis of PDEs
2011/9/1
Abstract: We consider the Schr\"odinger system with Newton-type interactions that was derived by R. Klein, A. Majda and K. Damodaran [18] to modelize the dynamics of N nearly parallel vortex filaments...
Nucleated polymerisation in the presence of pre-formed seed filaments
Nucleated polymerisation pre-formed seed filaments Biological Physics
2011/8/3
Abstract: We revisit the classical problem of nucleated polymerisation and derive a range of exact results describing polymerisation in systems intermediate between the well-known limiting cases of a ...
Oscillatory motions observed in eruptive filaments
Sun: fi laments prominences – Sun:oscillations – Sun:atmosphere.
2011/9/27
Context: The origin of the variable component of the solar wind is of great intrinsic interest for heliophysics and space-weather, e.g. the initiation of coronal mass ejections, and the problem of mas...
Can overturning motions in penumbral filaments be detected?
overturning motions penumbral filaments detected
2011/9/27
Numerical simulations indicate that the filamentation of sunspot penumbrae and the associated systematic outflow (the Evershed effect) are due to convectively driven fluid motions constrained by the i...
Influence of higher-order Kerr effect on conical emission from laser filaments in gases
higher-order Kerr effect ultrashort laser filaments
2011/8/31
We numerically investigate the conical emission (CE) from ultrashort laser filaments, both considering and disregarding the higher-order Kerr effect (HOKE). While the consideration of HOKE has almost ...
Hawking radiation from ultrashort laser pulse filaments
Hawking radiation ultrashort laser pulse filaments
2010/10/27
Event horizons of astrophysical black holes and gravitational analogues have been predicted to
excite the quantum vacuum and give rise to the emission of quanta, known as Hawking radiation.
We exper...
Swarms of insects and flocks of birds are examples of natural systems in which individual components act independently, yet together display complex collective motion. Scientists have extensively mode...
Long-term variation in the distribution of the solar filaments
observed at the Observatorie de Paris, Section de Meudon from March
1919 to December 1989 is presented to compare with sunspot cycle a...
Long-term variation in the distribution of the solar filaments observed at the Observatorie de Paris, Section de Meudon from March 1919 to December 1989 is presented to compare with sunspot cycle and ...