FIG. 4.

Both the figures are based on simulations of a cell rotating around a stationary cell at a constant distance $d$ (Figure 1). (a) The stress component in the z-direction ${\sigma }_z$ is plotted versus the rotating angle $\alpha$. We determined the stress of the AP and the BP of the stationary cell represented by solid and non-filled triangles, respectively. (b) The values represented by the triangles show the influence factor ${\psi }_{\sigma z}$ of the AP and the BP of the stationary cells plotted against the rotating angle $\alpha$ (left vertical axis). The calculated influence factor ${\psi }_{\mathit{M}\mathit{i}\mathit{s}}$ of the cell surface is represented by the line and circles (right vertical axis).