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:
“She has not grown uncivil
As narrow natures would
And called the pleasures evil
Happier days thought good....”
—William Butler Yeats (1865–1939)
“To retire to the monastery, or the woods, or the sea, is to escape from the sharp suggestions that spur on ambition.”
—Charles Horton Cooley (1864–1929)