Drop Distribution Site


The program Drop models the equilibration rate of a hanging drop experiment using standard models of diffusion, evaporation and condensation. The equations are then solved via numerical methods to accurately calculate the equilibration rate.

The manuals

In general, the postscipt version is the most complete and up to date.

To get the program:

This will make a directory named Drop with all the necessary files. The resulting files take about 1 Mb of disk space.


Diller, D.J. and Hol, W.G.J. (1999) "An accurate numberical model for calculating the equilibration rate of a hanging drop experiment". Acta Cryst. D55, p. 656-663.
David Diller
Biological Structure Center
Health Sciences Center, K-454
Box 357742
University of Washington
Seattle, WA 98195-7742

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