中文
相关论文

相关论文: Quasi-steady-state approximation and numerical sim…

200 篇论文

Liquid-liquid phase separation plays a major role in the formation and maintenance of various membrane-less subcellular structures in the cytoplasm and nucleus of cells. Biological condensates contain enhanced concentrations of proteins and…

软凝聚态物质 · 物理学 2023-10-03 Paul C Bressloff

Coupled nonlinear system of reaction-diffusion equations describing multi-component (species) interactions with heterogeneous coefficients is considered. Finite volume method based approximation for the space is used to construct…

数值分析 · 数学 2022-09-13 Maria Vasilyeva , Alexey Sadovski , D. Palaniappan

In this work, we present an extensive computational study on the Ziff-Gulari-Barshad (ZGB) model extended in order to include the spatial diffusion of oxygen atoms and carbon monoxide molecules, both adsorbed on the surface. In our…

统计力学 · 物理学 2018-08-01 Roberto da Silva , Henrique Almeida Fernandes

We analyze an advection-diffusion-reaction problem with non-homogeneous boundary conditions that models the chromatography process, a vital stage in bioseparation. We prove stability and error estimates for both constant and affine…

数值分析 · 数学 2025-10-28 Farjana Siddiqua , Catalin Trenchea

It is demonstrated that the description of surface-diffusion controlled dynamics via the phase-field method is less trivial than it appears at first sight. A seemingly straightforward approach previously used in the literature is shown to…

其他凝聚态物理 · 物理学 2007-05-23 Klaus Kassner

Computational systems biology has provided plenty of insights into cell biology. Early on, the focus was on reaction networks between molecular species. Spatial distribution only began to be considered mostly within the last decade.…

定量方法 · 定量生物学 2016-05-13 Atsushi Miyauchi , Kazunari Iwamoto , Satya Nanda Vel Arjunan , Koichi Takahashi

We consider extended slow-fast systems of N interacting diffusions. The typical behavior of the empirical density is described by a nonlinear McKean-Vlasov equation depending on , the scaling parameter separating the time scale of the slow…

偏微分方程分析 · 数学 2021-08-09 Julien Barré , Cedric Bernardin , Raphaël Chétrite , Yash Chopra , Mauro Mariani

The description of surface-diffusion controlled dynamics via the phase-field method is less trivial than it appears at first sight. A seemingly straightforward approach from the literature is shown to fail to produce the correct…

计算物理 · 物理学 2017-03-13 Clemens Mueller-Gugenberger , Robert Spatschek , Klaus Kassner

The reaction-diffusion model can generate a wide variety of spatial patterns, which has been widely applied in chemistry, biology, and physics, even used to explain self-regulated pattern formation in the developing animal embryo. In this…

数值分析 · 数学 2020-01-29 Hui Zhang , Xiaoyun Jiang , Fanhai Zeng , George Em Karniadakis

We investigate a recently proposed cross-diffusion system modelling the growth of gliobastoma taking into account size exclusion both in the migration and proliferation process. In addition to degenerate nonlinear cross-diffusion the model…

偏微分方程分析 · 数学 2017-10-12 Martin Burger , Patricia Friele , Jan-Frederik Pietschmann

Reaction-diffusion systems where transition rates exhibit quenched disorder are common in physical and chemical systems. We study pair reactions on a periodic two-dimensional lattice, including continuous deposition and spontaneous…

无序系统与神经网络 · 物理学 2010-11-10 A. Wolff , I. Lohmar , J. Krug , Y. Frank , O. Biham

In many biological situations, a species arriving from a remote source diffuses in a domain confined between two parallel surfaces until it finds a binding partner. Since such a geometric shape falls in between two- and three-dimensional…

化学物理 · 物理学 2019-11-05 Denis S. Grebenkov , Diego Krapf

We develop an analytical diffusion-equation-type approximation scheme for the one-dimensional coagulation reaction A+A->A with partial reaction probability on particle encounters which are otherwise hard-core. The new approximation…

凝聚态物理 · 物理学 2010-10-12 V. Privman , C. R. Doering , H. L. Frisch

We propose a model for cell polarization as a response to an external signal which results in a system of PDEs for different variants of a protein on the cell surface and interior respectively. We study stationary states of this model in…

偏微分方程分析 · 数学 2019-02-18 Barbara Niethammer , Matthias Röger , Juan J. L. Velázquez

We consider a model fluid with long-ranged, dispersion interparticle potentials confined between competing parallel walls. One wall is solvophilic and would be completely wet at bulk liquid-gas coexistence while the other is solvophobic and…

软凝聚态物质 · 物理学 2015-06-05 M. C. Stewart , R. Evans

We propose a novel algorithm for the approximation of surface-quasi geostrophic (SQG) flows modeled by a nonlinear partial differential equation coupling transport and fractional diffusion phenomena. The time discretization consists of an…

数值分析 · 数学 2020-06-03 Andrea Bonito , Murtazo Nazarov

A coupled system of nonlinear mixed-type equations modeling early stages of angiogenesis is analyzed in a bounded domain. The system consists of stochastic differential equations describing the movement of the positions of the tip and stalk…

偏微分方程分析 · 数学 2022-06-24 Markus Fellner , Ansgar Jüngel

The fast reaction limit for a nonlinear bulk-surface reaction-diffusion system is investigated. This system describes a reversible reaction with arbitrary stoichiometric coefficients, where one chemical is present in a bounded vessel…

偏微分方程分析 · 数学 2026-04-06 The Tuan Hoang , Nhu Phong Tham , Bao Quoc Tang

We study the diffusion-limited process $A+A\to A$ in one dimension, with finite reaction rates. We develop an approximation scheme based on the method of Inter-Particle Distribution Functions (IPDF), which was formerly used for the exact…

凝聚态物理 · 物理学 2016-08-31 Dexin Zhong , Daniel ben-Avraham

Fatty acids (FAs) are crucial energy metabolites, signalling molecules, and membrane building blocks for a wide range of organisms. Adipose triglyceride lipase (ATGL) is the first and presumingly most crucial regulator of FA release from…