Open Source Linux Physics Software - Page 5

SpectrumGUI can generate filtered spectra for various x-ray tubes and can display attenuation coefficients for various materials. It also computes exposure and beam quality for various tube settings.

XMDS is a code generator that integrates equations. You write them down in human readable form in a XML file, and it goes away and writes and compiles a C++ program that integrates those equations as fast as it can possibly be done in your architecture.

The project's repository has moved to github. Please use the repository at https://github.com/Niels-Bohr-Institute-XNS-StructBiophys/fit2dcorr for the new updated versions. The old version is kept at sourceforge. Keywords: fit2d SAXS azimuthal averaging batch processing absolute units (exposure time, transmission, sample thickness) error bars C++ Unix OpenMP

A library of C codes for storing and managing nuclear reaction networks, that is, ensembles of nuclear species and reactions among them.

An automatic 2D Delaunay mesh generator and solver for Finite Element Analysis. Can solve 2D field problems (Poisson and Helmholtz Equations). Can use LAPACK/ARPACK solvers producing OpenGL/Postscript output. Uses C/GTK/GTKGLExt/MFC. Runs on Win32/Unix.

Simulation of water waves on the X Windows desktop. Windows and mouse are like ships on the sea. Each movement of these ends up in moving water waves. You can even have rain and/or storm stirring up the water.

Automated Quantitative Spectroscopic Analysis Combining Background Subtraction, Cosmic-Ray Removal and Peak Fitting programmed in LabVIEW. Current version 1.1.0. Binaries and source available.

A portable loudspeaker design system supporting measurement, modeling, simulation and optimization of boxes, filters and systems.

VASPMO aims at visualizing wavefunctions (or molecular orbitals) from VASP calculations. It reads VASP's output files PROCAR and CONTCAR, and exports an *.out file in Gaussian's output format, which can be visualized by many popular visualization tools, such as JMol, Molekel, Chemcraft, Gabedit and Molden, etc. These tools can further generate *.cube files, which can be visualized by an even wider range of softwares. 读入VASP计算得到的PROCAR和CONTCAR文件，输出Gaussian结果文件。该文件能够被常用的量子化学可视化软件（如Molekel、Chemcraft、Gabedit、Molden和JMol等）读取，进而绘制和观看体系的分子轨道。有些软件还能导出 cube文件（如Chemcraft和Molden等），从而又能被很多支持cube格式文件的可视化软件所识别。

Atomes is a Free (Open Source) cross-platform software licensed under the terms of the Affero GPL v3+ license. Atoms is a toolbox developed to analyze, to visualize and to create/edit three-dimensional atomistic models. Atomes also provides an advanced input preparation system for further calculations using well known molecular dynamics codes: - Classical MD : DL-POLY and LAMMPS - ab-initio MD : CPMD and CP2K - QM-MM MD : CPMD and CP2K Atomes is developed by Dr. Sébastien Le Roux, research engineer for the CNRS Dr. Sébastien Le Roux works at the Institut de Physique et Chimie des Matériaux de Strasbourg.

FEMM procedures to analyse rotating machines.

Welcome to the home of homemade lasers and to the braniac laboratory. This site is devoted to the homemade lasers. And guides where it is described how to build them step by step. Any laser described in the guides can be build from scratch using only the common accessible resources. You won't need rare crystals, optics, mirrors or anything like this. On the other hand all lasers here are the demo of the concept. (Rather) cheap, quick-and-dirty mockups. Feel free to make for them proper housing and shining handles. My task is simple - to show that lasers ARE simple. Not less not more.

The Massively Parallel Quantum Chemistry program, MPQC, computes properties of atoms and molecules from first principles using the time independent Schrödinger equation.

The project offers support for NTC thermistor calculations. The Steinhart-Hart equation is a mathematical model for these thermistors. Software to calculate the coefficients based on temp-resistance tables and functions allowing conversion are provided.

TMVA is a ROOT-integrated toolkit for multivariate classification and regression analysis. TMVA performs the training, testing and performance evaluation of a large variety of multivariate methods. Since 2013, TMVA has been fully integrated with ROOT and is distributed as part of it. The new homepage of TMVA is https://root.cern

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.

http://loto.sourceforge.net/ hosts 4 projects of free software related to materials science and physics. They are loto, feram, compasses and xtalgrowth.

With differents numerical methods this application simulate the water hammer phenomenon.

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.

MRCWA - Multilayer Rigorous Coupled Wave Analysis is a fast, flexible optical grating solver. It calculates an exact solution to the Maxwell equations for the diffraction of light from an optical grating with arbitrary profile and materials.

CPPLapack is a c++ class wrapper for BLAS, LAPACK and PARDISO. Its special features are the followings. [1]User-friendly interface [2]Hi-speed matrix calculations using BLAS and LAPACK [3]Minimized number of copy times using Smart Temporary system

chamber is a reactive hydrodynamic modeling tool specifically designed for small arms interior ballistics research. Multiple equations of state and burn models are supported. chamber is an adaptation of the BKW, SIN, 2DL and 2DE codes in one package.

Cooldt calculate the cooling duration of a multi-layers pipe in a cold environment. The duration to reach the “Final fluid temperature” or cool-down time (CDT) is calculated by solving the heat equation in cylindrical coordinates with a flux conservative formulation.

A collection of sparse Fourier transform codes developed by faculty at MSU. Currently codes for four different prototype sparse FFTs are here: 1.) DMSFT, implemented by Ruochuan Zhang. This is a fast, stable, noise robust, and *fully discrete* improvement on the ideas in GFFT below. It is THE BEST sparse FFT around!!! If you're looking for AAFFT, try this out first. 2.) AAFFT, implemented by Mark Iwen in 2008. This code is easy to use, and documented well, but not implemented very efficiently. It is much slower than it should be. 3.) GFFT, implemented by Ben Segal and Mark Iwen. This code is less easy to use, and also not terribly efficient. But, the *algorithm* itself is significantly simpler and has "essentially no parameters". 4.) MSFFT, implemented by David Lawlor and Bosu Choi. This code is fast, but is not terribly easy to use. The algorithm is robust to some noise, but requires a lot of parameter tuning. Enjoy at your own risk :), Mark Iwen

OpenFlower is a free and open source CFD code (for Linux and Windows) mainly intended to solve the turbulent incompressible Navier-Stokes equations with a LES approach. It can deal with arbitrary complex 3D geometries with its finite volume approach.