We study a reduced Poisson–Nernst–Planck (PNP) system for a charged spherical solute immersed in a solvent with multiple ionic or molecular species that are electrostatically neutralized in the far field. Some of these species are assumed to be in equilibrium. The concentrations of such...

We study the statistical properties of fluid flows in percolation porous media at very low Reynolds number by numerical simulations for 20,000 different configurations. It is shown that there are some important differences between fluid flows in macroscopically homogeneous and fractal porous...

We investigate the asymmetry of heart rate control system and suggest a simple index to quantify this asymmetry by performing high-dimensional time irreversibility tests to heartbeat interval time series over multiple scales. The results provide strong evidence to the concept that the asymmetry...

Electronic Cardiogram (ECG) data taken from healthy adult subjects are found to characterize multifractality. In order to quantitatively analyze multifractal spectrum, the area of the spectrum is computed. We have a comparison between the spectrum of the young subjects and that of the old ones....

In this paper, a new viewpoint is proposed: the synchronous 12-lead ECG multifractal singularity spectrum distribution is modulated by the heart disease information. There is a well-regulated multifractal singularity spectrum distribution among different leads. We consider that the mean value of...

The cytoskeleton of eukaryotic cells contains networks of protein polymers called microtubules (MTs), which provide a wide range of microskeletal and micromuscular functionalities. Evidences from a number of directions suggest that they can also serve as a medium for intracellular signal...