Welcome to the R.I.N.G.S. project website

R.I.N.G.S. v1.1 released - What's new ?

The R.I.N.G.S. code development team is proud to announce the release of version 1.1 of the R.I.N.G.S. code !

Several new features and many improvements now make the R.I.N.G.S. code more reliable and efficient:

New distribution functions are available: total G(r) and partials G_αβ(r)
X-rays structure factors are now computed
Several distribution functions are now computed both for the simulation of neutrons and X-rays diffraction: T(r), D(r), g(r), G(r)
The distributions of dihedral angles are now computed
General improvement of the R.I.N.G.S. code
Correction of several bugs

Last Updated on Tuesday, 10 November 2009 09:39

Welcome to R.I.N.G.S.

R.I.N.G.S. "Rigorous Investigation of Networks Generated using Simulations" is a scientific code developed in Fortran90/MPI to analyze the results of molecular dynamics simulations.

Its main feature is the analysis of the connectivity using ring statistics.

Last Updated on Sunday, 25 January 2009 02:41

Ring statistics

The analysis of topological networks (liquid, crystalline or amorphous systems) is often based on the part of the structural information which can be represented in the graph theory using nodes for the atoms and links for the bonds. The absence or the existence of a link between two nodes is determined by the analysis of the total and partial radial distribution functions of the system.

In such a network a series of nodes and links connected sequentially without overlap is called a path. Following this definition a ring is therefore simply a closed path.

If we study thoroughly a specific node of this network we see that this node can be involved in numerous rings.
Each of these rings is characterized by its size and can be classified based upon the relations between the nodes and the links which constitute it.

Last Updated on Wednesday, 13 May 2009 15:07 Read more...