Web Servers
In practice, two kinds of calculations can be performed. The first kind (the GNM per se) makes use of the Kirchhoff matrix. The second kind (more specifically called either the Elastic Network Model or the Anisotropic Network Model) makes use of the Hessian matrix associated to the corresponding set of harmonic springs. Both kinds of models can be used online, using the following servers.
Read more about this topic: Gaussian Network Model
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