The investigation of diffusive process in nature presents a complexity associated with
memory effects. Thereby, it is necessary new mathematical models to involve memory …

This present work consists of investigating the effects of particle size heterogeneity and flow
rates on transport-reaction kinetics of CuSO 4 and Na 2 EDTA 2− in porous media, via the …

To investigate the anomalous migration process of ammonia nitrogen in vadose zone,
laboratory and numerical experiments of chloride and ammonia nitrogen are used to the …

We develop a reactive transport model for dissolution of porous materials using a
Continuous Time Random Walk (CTRW) formulation with first-order kinetics. Our model is …

Understanding the influence of colloids on radionuclide migration is of significance to
evaluate environmental risks for radioactive waste disposals. In order to formulate an …

An exposition is given of a finite‐element method (FEM) software package to calculate
solutions for the continuous time random walk (CTRW) integro‐differential equation for non …

This paper presents numerical solutions to Fredholm integro-differential equations that arise
in physical, chemical, engineering, and biological models using approximations by third kind …

For reactive transport process in porous media, limited mixing and non-Fickian behavior are
difficult to understand and predict. To explore the effects of anomalous diffusion and limited …

The nonlocal-in-time, integro-partial differential equation (iPDE) describing the continuous
time random walk (CTRW) is augmented by a nonlinear chemical-species term accounting …

The subject of aging continuous time random walks (CTRWs) has attracted increasing
attention in recent years. To describe the aging behaviors of random particles whose jumps …