We explore the anomalous diffusion that may arise as a result of a concentration dependent diffusivity. The diffusivity is taken to be a power law in the concentration, and from exact analytical ...

The salient significance of the solution of radial diffusivity equation to well testing analysis done in oil and gas industry cannot be over-emphasized. Varieties of solutions have been proposed to ...

Recently, anomalous subdiffusion, aging, and scatter of the diffusion coefficient have been reported in many single-particle-tracking experiments, though the origins of these behaviors are still ...

1 Department of Mathematics and Theoretical Physics, Atomic Energy Authority, Cairo, Egypt. 2 Department of Mathematics, Faculty of Science, Zagazig University, Zagazig, Egypt. Air pollutants released ...

In this paper, the volume averaging transport equations of two reactive processes in porous media are presented. The porous media are characterized by different length scales and the information ...

As an emerging healthy green beverage, tea is gradually gaining ubiquitous popularity among the public (Yu et al., 2020). Tea is rich in many trace elements that are beneficial to human health, such ...