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: Physics
Backup with these DeDuplicating Encryption Tools
This article provides a quick roundup of 6 deduplicating encryption backup tools.
(Read more)
LAME
LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to use the open source model to improve the psycho acoustics, noise shaping and speed of MP3. LAME is not for everyone  it is distributed as source code only and requires the ability to use a C compiler. However, many popular ripping and encoding programs include the LAME encoding engine. It features: MPEG1,2 and 2.5 layer III encoding., CBR (constant bitrate) and two types of variable bitrate, VBR and ABR, Encoding engine can be compiled as a shared library (Linux/UNIX), DLL or ACM codec (Windows), GPSYCHO: a GPL'd psycho acoustic and noise shaping model, and has many improvements in quality in speed over ISO reference software.
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ROOT
ROOT is a comprehensive object oriented framework that provides a solid foundation on which large scale data analysis applications can be built.
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ABINIT
ABINIT allows you to find the total energy, charge density and electronic structure of systems made of electrons and nuclei (molecules and periodic solids) within Density Functional Theory, using pseudopotentials and a planewave basis.
B2
B2 is an objectoriented extensible data analysis system implemented under Oberon System environment. The system is designed for efficient analysis of data from multidetector Nuclear Physics experiments.
BACKLIGHT
BACKLIGHT is a photorealistic relativistic visualisation system that produces images and videos demonstrating the optical effects of special relativity.
CAMFR
CAvity Modelling FRamework: fast, flexible, friendly fullvectorial Maxwell solver. Although it can tackle general electromagnetic problems, its main focus is on applications in the field of photonics
CFITSIO
CFITSIO is a library of C and Fortran subroutines for reading and writing data files in FITS (Flexible Image Transport System) data format. CFITSIO simplifies the task of writing software that deals with FITS files by providing an easy to use set of highlevel routines that insulate the programmer from the internal complexities of the FITS file format.
ChiantiPy
ChiantiPy is a Python interface to the CHIANTI atomic database for astrophysical spectroscopy.
CompHEP
CompHEP is a package for automatic calculations of elementary particle decays and collision processes in the lowest order of perturbation theory (the tree level approximation). The main idea behind the program is to make available passing on from the Lagrangian to the final distributions effectively with a high level of automation.
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COSY Infinity
COSY Infinity is an arbitrary order beam dynamics simulation and analysis code. It allows the study of accelerator lattices, spectrographs, beamlines, electron microscopes, and many other devices. It can determine highorder maps of combinations of particle optical elements of arbitrary field configurations.
CRUNCH
CRUNCH is a program for solving the phase problem in SingleCrystal Xray diffraction. It consists of two unique procedures: Direct methods, based on KarleHauptman Determinants, and automatic extension of partial structures, based on the R2function.
Debyer
Debyer takes a file with atom positions as input and can output Xray and neutron diffraction patterns, the total scattering structure function, the pair distribution function (PDF), and related functions (RDF, reduced PDF). It can be used for comparison of molecular dynamics simulations or other models of atomistic structure of the material with Xray and neutron powder diffraction experiments. The parallel version uses the MPI library.
Dervish
SDSS Human Interface Visualization Environment
DIRDIF
DIRDIF is for crystal structure determination by Patterson methods and direct methods applied to difference structure factors.
DRAWxtl
DRAWxtl displays crystal structures in two forms, one that can be disseminated across the Internet using the Virtual Reality Modeling Language (VRML), and a second for publicationquality drawings using the Persistence of Vision Ray Tracer (POVRAY) scene language.
EASY2007
EASY2007 consists of a wide range of codes, data and documentation all aimed at satisfying the objective of calculating the response of materials irradiated in a neutron flux. It is designed to investigate fusion devices which will act as intense sources of high energy (14 MeV) neutrons and cause significant activation of the surrounding materials.
Einstein Toolkit
The Einstein Toolkit currently consists of an open set of over 100 Cactus thorns for computational relativity along with associated tools for simulation management and visualization. The toolkit includes a vacuum spacetime solver (McLachlan), a relativistic hydrodynamics solver (formerly the public version of the Whisky code), along with thorns for initial data, analysis and computational infrastructure.
Elfelli Flux Line Simulator
Elfelli is a tool to simulate and visualize electric flux lines around arbitrary positioned, electric charged bodies. It is able to export PNG files of the current canvas. Elfelli is written in C++ and uses gtkmm as interface for the popular GTK+ GUI toolkit.
EMAN
EMAN is a program for display and manipulation of electron micrographs. It's primary advantage over programs like boxmrc and imagic is that it is much more interactive and easier to use. It does not do 3d reconstructions, but rather specializes in 2d image manipulation.
EMAP
ElectroMagnetic Analysis Program is a family of threedimensional finite element modeling codes that can be used to analyze simple 3dimensional geometries.
EMWave2D
EMWave2D is a general purpose electromagnetic wave simulation program. It is developed using gtk+ and c program. It uses the finite difference time domain (FDTD) method to solve the Maxwell's equations.
Enhanced Machine Controller Antenna Range
The Enhanced Machine Controllerbased Antenna Range (EMCAR) employs EMC2based machine control to implement an automated measurement system for antenna radiation pattern data (i.e. an antenna range).
EPICS
EPICS is a set of software tools and applications for the purpose of building distributed control systems.
epicstcl
epics Tcl/Tk support software provides Tcl/Tk support to access the Experimental Physics and Industrial Control System (EPICS). It includes EPICSaware widgets that make building control panels easier.
eXsas
extended Xray scientific analysis system is designed for the interactive analysis of Xray and XUV data with particular emphasis on the analysis of data from the ROSAT mission.
FPhotoLITography optics simulation application
(F)PhotoLITography optics simulation application (FLIT) simulates the propagation of light waves in a photolithograph. The mask is described by a vector file, which is rasterized with the required resolution.
FINESSE
Frequency domain INterfErometer Simulation SotfwarE (FINESSE) is a numeric simulation for laser interferometers using the frequency domain and HermiteGauss modes. It is easy to use for students.
FlipDCD
FlipDCD is a small utility for reversing the endianism of binary DCD trajectory files from Charmm, and NAMD. This can be useful when running simulations on one architecture and visualizing or analyzing the results on another. FixDCD is a tiny utility to modify the header of an XPLOR DCD file to make it readable by programs expecting Charmm DCD files, at the expense of a Timestep size value in the header.
FísicaLab
FísicaLab is an educational application to solve physics problems.
GASP
(commercial) General Aerodynamic Simulation Program.
Geant4
Geant4 is a toolkit for the simulation of the passage of particles through matter. Its application areas include high energy physics and nuclear experiments, medical, accelerator and space physics studies.
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Gravetat
Gravetat is a gravity and electromagnetism simulator. It offers you the possibility of creating a universe with a few particles and then see how them interact due to the forces mentioned before.
Gstat
Gstat is for geostatistical modelling, prediction and simulation; uses gnuplot for the display of sample variograms and variogram function.
GVB
GVB (Good ViBrations) is a small program to simulate vibrations in 1 and 2 dimensions. It features several calculation, drawing methods and starting positions and the ability to dump frames to png (so that they can be used to build animations).
hc2
hc2 calculates the upper critical field for s and dwave superconductors as a function of temperature and tilt angle of the external field.
HERMES
Software packages that are useful for high energy experiments. They include a Cbased library to process Hermes event data, a library which provides a clientserver model on different machines to access adamo tables with reduces net traffic, an interface to access Adamo and Dad data from the X11 script language Tcl/Tk and more.
holocrunchies
holocrunchies is a Computational holography program. It generates diffraction patterns for 2D images.
Interactive Spectral Interpretation System
The Interactive Spectral Interpretation System (ISIS) is designed to facilitate the interpretation and analysis of high resolution Xray spectra. It is being developed as a programmable, interactive tool for studying the physics of Xray spectrum formation, supporting measurement and identification of spectral features and interaction with a database of atomic structure parameters and plasma emission models.
LaserCalc
LaserCalc is an Open Source Gnome application for the calculation of optical beam paths and laser resonators based on Gaussian beam matrix optics. In addition beam paths can be optimized to match given beam parameters (mode matching).
Light Speed!
Light Speed! is an OpenGLbased program developed to illustrate the effects of special relativity on the appearance of moving objects. When an object accelerates to more than a few million meters per second, it begins to appear warped and discolored in strange and unusual ways, and as it approaches the speed of light (299,792,458 m/s) the effects become more and more bizarre.
LightPipes
LightPipes for Mathcad is a set of functions written in C available to Mathcad It is designed to model coherent optical devices when the diffraction is essential. The toolbox consists of a number of functions. Each function represents an optical element or a step in the light propagation. There are apertures, intensity filters, beamsplitters, lenses and models of free space diffraction in LightPipes.
MagSolve
MagSolve is an interactive suite of programs which allows the solution of 2dimensional static magnetic field problems by the Finite Element Method.
McPHase
MCPHASE is a program designed to calculate the magnetic structures of a magnetic system given the exchange interaction constants. A combined meanfield/montecarlo algorithm is used. For a given temperature T and magnetic field H several possible magnetic structures are stabilized by a mean field algorithm and the free energy is calculated. The initial values for this meanfield procedure are modified by a Monte Carlo process.
Mecanica
Mecanica is simulation software for classical mechanics. It's all written in Portuguese and should help physics students to solve their exercises.
Meep
Meep is a free finitedifference timedomain (FDTD) simulation software package to model electromagnetic systems. It supports distributedmemory parallel simulations, nonlinear and dispersive media, PML absorbing boundaries, and 1D/2D/3D/cylindrical problems. Meep is completely scriptable from either C++ or a Scheme (GNU Guile) interface.
MIT PhotonicBands
MIT PhotonicBands is for computing the band structures (dispersion relations) and electromagnetic modes of periodic dielectric structures.
Mol_Volume
Mol_Volume calculates the volume of a macromolecule by a method somewhat akin to the Monte Carlo method, namely, by measuring how many vertices of a dense regular grid happen to be within the probe radius of the molecule's atoms.
MultiBody Dynamics
MBDyn features the integrated multidisciplinary analysis of multibody, multiphysics systems, including nonlinear mechanics of rigid and flexible constrained bodies, smart materials, electric networks, active control, hydraulic networks, and essential fixedwing and rotorcraft aerodynamics. It allows you to simulate the behavior of heterogeneous mechanical, aeroservoelastic systems based on first principles equations. It is being actively developed and used in the aerospace and automotive fields for dynamics analysis and simulation of complex systems. The extension of available analysis domains to new models, and new analysis domains, is planned and problemdriven.
NEC
NEC is code for modelling electromagnetic response of antennas and other metal structures.
nMod
nMod nBody Modelling Toolkit contains a 'Particle Particle' class nBody Model and associated utilities. nMod is intended for use in Computational Astronomy, Spaceflight Simulation and general nBody Problem investigation. The toolkit is aimed at Researchers and students who would expand nMod to suit the experiments they wish to perform.
NSCL Data Acquisition System
NSCL Data Acquisition System is a general purpose nuclear physics data acquisition system in use at several university labs and, of course, the National Superconducting Cyclotron Laboratory at Michigan State University.
OOMMF
Object Oriented MicroMagnetic Framework
openEMS
openEMS is an electromagnetic field solver using the FDTD method. It employs a fully 3D Cartesian and cylindrical coordinate graded mesh.
OpenFOAM
The OpenFOAM (Open Field Operation and Manipulation) CFD Toolbox can simulate anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics, electromagnetics and the pricing of financial options.
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Optical Ray Tracer
OpticalRayTracer is a utility that analyzes systems of lenses. It uses optical principles and a virtual optical bench to predict the behavior of many kinds of ordinary and exotic lens types. OpticalRayTracer includes an advanced, easytouse interface that allows the user to rearrange the optical configuration by simply dragging lenses around using the mouse.
PAW
PAW is conceived as an instrument to assist physicists in the analysis and presentation of their data. It provides interactive graphical presentation and statistical or mathematical analysis, working on objects familiar to physicists like histograms, event files (Ntuples), vectors, etc.
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PFlow
PFlow is a graphical program developed to assist teaching the concepts of potential flow at the Massachusetts Institute of Technology's Department of Ocean Engineering.
Potto GDC
GDC is a utility to calculate compressible flow (Gas Dynamics Calculator). It provides calculations for isentropic, isothermal nozzle, isothermal, Fanno, Rayleigh flow etc. It also provide calculations for shock and oblique shock by direct calculations.
Pulsar
Pulsar is for the generation and simulation of advanced RF pulses used nowadays in magnetic resonance imaging.
Regress Pro
Regress Pro is scientific / industrial software that can be used to study experimental data coming from spectroscopic ellipsometers or reflectometers. The program has been developed mainly looking to the application of thin film measurement in semiconductor industry.
Rocket Propulsion Analysis
(commercial) Rocket Propulsion Analysis (RPA) is a multiplatform rocket engine analysis tool for rocketry professionals, scientists, students and amateurs.
San Le's Free Computational Fluid Dynamics
SLFCFD stands for San Le's Free Computational Fluid Dynamics. It is a package of scientific software and graphical user interfaces for use in computational fluid dynamics. It is written in ANSI C by San Le and distributed under the terms of the GNU license.
SatTrack
(commercial) SatTrack is a realtime satellite tracking and orbit prediction program.
Slopefit
Slopefit is a fast, easily scriptable, command line program to calculate slope parameters of particle momentum spectra.
SODIUM
SODIUM places the required number of sodium ions around a system of electric charges, e.g., the atoms of a biological macromolecule (protein, DNA, protein/DNA complex).
Sparta
Sparta stands for Simulation of Physics on A Real Time Architecture. The goal of the project is to develop specialized hardware in order to greatly accelerate physical modeling.
SpecTcl
SpecTcl is a Tcl/Tk based histogrammer suitable for analysis of nuclear physics data. SpecTcl is relatively easy to learn, and is based on top of a very open C++ histogramming class framework. SpecTcl has been developed under NSF grant PHY9528844.
Step
Step is an interactive physics simulator. With Step you can not only learn but feel how physics works. You place some bodies on the scene, add some forces such as gravity or springs, then click "Simulate" and Step shows you how your scene will evolve according to the laws of physics.
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ThermoCalc Classic
(commercial) ThermoCalc Classic is a powerful software for thermodynamic calculations in multicomponent systems. It is widely used for calculations of: Phase diagrams, Thermochemical data such as enthalpies, heat capacity, and activities, Solidification simulations with the ScheilGulliver model, Pourbaix diagrams, and more.
ThSim
ThSim is a simulator for thermal conduction in solid material. Uses SPICE for calculations and wxWindows for providing Windows and Linux GUI.
TOCHNOG Finite Element Analysis
TOCHNOG Finite Element Analysis is a free finite element program.
Transcalc
Transcalc is an analysis and synthesis tool for calculating the electrical and physical properties of different kinds of RF and microwave transmission lines. Transcalc was somewhat inspired by the functionality of Agilent Technologies' commercial program linecalc. Transcalc aspires to be more functional in the long run and welldocumented with appropriate references to formulas that are used.
UNCERT
A geostatistical uncertainty analysis package applied to groundwater flow and contaminant transport modelling
vp7wkp
vp7wkp is a GTK application which simulates a laboratory experiment with radioactive nuclei.
VSim
(commercial) VSim is a flexible, multiplatform, ParticleinCell (PIC) simulation tool for running computationally intensive plasma, electromagnetic and electrostatic problems. VSim enables you to switch easily between 1, 2, or 3 dimensions then watch your model run lightning fast using algorithms designed for the exacting demands. of high performance computing systems, whether on your laptop or supercomputing cluster.
VULCAN
Viscous Upwind ALgorithm for Complex Flow ANalysis: a turbulent, nonequilibrium, finiterate chemical kinetics, NavierStokes flow solver for structured, cellcentered, multiblock grids
Wat2ions
Wat2ions is complementary to DelPhi, the renowned solver of the PoissonBoltzmann equation. The electrostatic potential map, precomputed by DelPhi, is used to replace a certain number of water molecules of the bath, surrounding a solvated macromolecule, with ions.
wgms3d
wgms3d is a fullvectorial electromagnetic waveguide mode solver. It computes the modes of dielectric waveguides at a specified wavelength using a secondorder finitedifference method.
WIASTeSCA
WIASTeSCA (Two and threedimensional semiconductor analysis package) is a program system for the numerical simulation of charge transfer processes in semiconductor structures, especially also in semiconductor lasers. It is based on the driftdiffusion model and considers a multitude of additional physical effects, like optical radiation, temperature influences and the kinetics of deep (trapped) impurities.
xloopsGiNaC
xloopsGiNaC is a partial reimplementation of the original XLOOPS program based on the GiNaC C++ library for symbolic computation.
XMD
XMD is a program for performing molecular dynamic simulations on metals and some ceramics materials at the atomic scale. It models atomic energies and dynamics using user defined pair potentialsl, EAM potentials and some hard coded potentials.
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