Open Source Perl Physics Software for Mac

MCX is a GPU-accelerated, general-purpose, physically-accurate and feature-rich 3-D light transport simulator. It is one of the fastest simulators because it can use tens of thousands of GPU threads to simulate photons in parallel.

IFEFFIT is a library and set of interactive programs for the analysis of x-ray absorption fine-structure (XAFS) data. IFEFFIT combines state-of-the-art analysis algorithms with graphical display of XAFS data, and general data manipulation. It can be

The Blue Obelisk Data Repository lists many important chemoinformatics data such as element and isotope properties, atomic radii, etc. including references to original literature. Developers can use this repository to make their software interoperable.

PDFgetN is a program to process total scattering data obtained on neutron time-of-flight powder diffractometers and to obtain the atomic pair distribution function (PDF).

The program does nmr product operator calculations for one, two, three and four spins. Receiver phase cycling is possible in conjunction with pulse phase cycling to simulate coherence pathway selection. An extensive manual and help files are included. Currently running under Linux and Windows.

This is an extension to the standard 2D HF package (A Numerical Hartree-Fock Program for Diatomic Molecules by Jacek Kobus, Leif Laaksonen and Dage Sundholm) that adds some extra functionality.

GVIB is a user friendly package for vibrational analysis. Given a molecular geometry, it will calculate vibrational frequencies and intensities using anharmonic internuclear potential.

KHorn is a universal easy to use CAS (Computer Algebra System). It will be usable for Physics, Chemistry, Mathematics and other natural sciences. KHorn is based on the GMP library.

RYUON : many-particle simulation suite

Thermocouple Scripts. Thermocouples generate a voltage at a given temperature. The relationship isn't simple. There are published tables, but the format can be awkward. This project supplies tools to find, parse, plot, and curve-fit thermocouple data.

Small-angle X-ray scattering (SAXS) in solution is a common low-resolution method which can efficiently complement high-resolution information obtained by crystallography or NMR. Sample monodispersity is key to reliable SAXS data interpretation and model building. Beamline setups with inline high-performance liquid chromatography (HPLC) are particularly useful for accurate profiling of heterogeneous samples. The program DATASW performs averaging of individual data frames from HPLC-SAXS experiment using a sliding window of a user-specified size, calculates overall parameters (I(0), Rg, Dmax and MW) and predicts the folding state (folded/unfolded) of the sample. Applications of DATASW are illustrated for several proteins with various oligomerization behaviors recorded at different beamlines. If you use DATASW in your work, please, cite: Shkumatov A.V. & Strelkov S.V. (2015) Acta Cryst. D71, 1347–1350

'isotope' is a small command-line utility to calculate the isotope pattern for a given chemical formula. It allows to run calculations interactively, in batch mode, via the command line, or (using a webserver) via a web interface.

PSI is an open-source program for computing molecular properties using high-accuracy, ab initio, quantum mechanical models.

This site hosts code investigating the role of spatial heterogeneity in biochemical signaling. Motivated by several biological examples, we study the behavior of covalent modification networks when the activating component is localized to a planar membrane in either a random or clustered configuration. Reactions and diffusion are implemented on a three-dimensional lattice.