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Reaction rate in an evanescent random walkers system
(2015)
Diffusion mediated reaction models are particularly ubiquitous in the description of phys-ical, chemical or biological processes. The random walk schema is a useful tool for formu-lating these models. Recently, evanescent ...
Estimating Pure Diffusion Contributions in Alkaline Pulping Processes
(Planta Piloto de Ingeniería Química, 2002-12)
A model that predicts isothermal alkali diffusion and reaction with acetyl groups in moist wood chips was derived and approximated. System parameters were estimated from unsteady-state experimental data. Simulation results ...
Reaction-diffusion stochastic lattice model for a predator-prey system
(Sociedade Brasileira de Física, 2008)
We have the purpose of analyzing the effect of explicit diffusion processes in a predator-prey stochastic lattice model. More precisely we wish to investigate the possible effects due to diffusion upon the thresholds of ...
Prediction of effective reaction rates in catalytic systems of multiple reactions using one-dimensional models
(Elsevier Science Sa, 2018-03)
In this work two one-dimensional (1D) models are used to approximate the catalytic behavior of three-dimensional (3D) shaped pellets. One of the 1D models employs a single parameter and is identified as Generalized Cylinder ...
Research note on power-series expression of mass concentration profile in nonlinear diffusion-reaction processes
(Praise Worthy Prize, 2011-11)
In this paper, a steady state one-dimensional diffusion-reaction process is considered. As a descriptive mathematical model for such processes, a high nonlinear boundary value problem (BVP) for a second order ordinary ...
From free to effective diffusion coefficients in fluorescence correlation spectroscopy experiments
(American Physical Society, 2013-02-13)
Diffusion is one of the main transport processes that occur inside cells determining the spatial and time distribution of relevant action molecules. In most cases these molecules not only diffuse but also interact with ...
Stability analysis for a new model of multi-species convection-diffusion-reaction in poroelastic tissue
(2020)
We perform the linear stability analysis of a new model for poromechanical processes with inertia (formulated in mixed form using the solid deformation, fluid pressure, and total pressure) interacting with diffusing and ...