Results 61 to 70 of about 8,075,923 (324)
Advectional enhancement of eddy diffusivity under parametric disorder
, 2009 Frozen parametric disorder can lead to appearance of sets of localized convective currents in an otherwise stable (quiescent) fluid layer heated from below. These currents significantly influence the transport of an admixture (or any other passive scalar)
Bensoussan A +6 more
core +1 more source
Lagrangian Numerical Methods for Ocean Biogeochemical Simulations [PDF]
, 2017 We propose two closely--related Lagrangian numerical methods for the simulation of physical processes involving advection, reaction and diffusion. The methods are intended to be used in settings where the flow is nearly incompressible and the P\'eclet ...
Paparella, Francesco, Popolizio, Marina
core +2 more sources
Calculating effective diffusivities in the limit of vanishing molecular diffusion [PDF]
Journal of Computational Physics, 2009 In this paper we study the problem of the numerical calculation (by Monte Carlo Methods) of the effective diffusivity for a particle moving in a periodic divergent-free velocity filed, in the limit of vanishing molecular diffusion. In this limit traditional numerical methods typically fail, since they do not represent accurately the geometry of the ...
Pavliotis, G.A. +2 more
openaire +3 more sources
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
Study on Effective Diffusivity of Sea Cucumbers with Heat Pump Drying
Zhileng xuebao, 2018 The effective diffusivity is an important parameter for mass transfer research on the drying of sea cucumbers. The dependence of the effective diffusivity on temperature has been adopted in current studies, while the effects of moisture content and ...
Zhao Haibo +4 more
doaj
The negative effective magnetic pressure in stratified forced turbulence
, 2012 To understand the basic mechanism of the formation of magnetic flux concentrations, we determine by direct numerical simulations the turbulence contributions to the mean magnetic pressure in a strongly stratified isothermal layer with large plasma beta ...
Brandenburg, Axel +3 more
core +1 more source
Origin of the Sub-diffusive Behavior and Crossover From a Sub-diffusive to a Super-diffusive Dynamics Near a Biological Surface [PDF]
, 2002 Diffusion of a tagged particle near a constraining biological surface is examined numerically by modeling the surface-water interaction by an effective potential.
Bagchi, Biman, Mukherjee, Arnab
core +2 more sources
Effective diffusion coefficients in reaction-diffusion systems with anomalous transport [PDF]
Physical Review E, 2019 We show that the Turing patterns in reaction systems with subdiffusion can be replicated in an effective system with Markovian cross-diffusion. The effective system has the same Turing instability as the original system, and the same patterns. If particles are short-lived, the transient dynamics are captured as well.
Joseph W. Baron, Tobias Galla
openaire +3 more sources
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
Foods, 2023 Pomegranate is a fruit desirable for its nutritional and medicinal properties which has a great industrial potential that is yet under-explored. Notable for its integral use, the peels are used in medicinal infusions and the seeds consumed without ...
Roberta de Oliveira Sousa Wanderley +11 more
doaj +1 more source