Narrow Escape
The Narrow escape problem is a ubiquitous problem in biology, biophysics and cellular biology which has the following formulation: a Brownian particle (ion, molecule, or protein) is confined to a bounded domain (a compartment or a cell) by a reflecting boundary, except for a small window through which it can escape. The narrow escape problem is that of calculating the mean escape time. This time diverges as the window shrinks, thus rendering the calculation a singular perturbation problem.
Read more about this topic: Brownian Motion
Famous quotes containing the words narrow and/or escape:
“Men have broad and large chests, and small narrow hips, and more understanding than women, who have but small and narrow breasts, and broad hips, to the end they should remain at home, sit still, keep house, and bear and bring up children.”
—Martin Luther (1483–1546)
“History takes place between the Fall and the Apocalypse, with a narrow escape route called Salvation.”
—Mason Cooley (b. 1927)