Showing 1222 open source projects for "open-shell"

View related business solutions
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
    Try it Free
  • 1
    VASPKIT
    Basic features: 1. Generate KPOINTS, POTCAR and INCAR for a given POSCAR file; 2. Elastic-constants using stress-strain or energy-strain methods; 3. Equation-of-state fitting; 4. Suggested k-paths for a given crystal structure; 5. Optical adsorption coefficient; 6. Band structure unfolding; 7. Fermi surface; 8. Density-of-states and band-structure; 9. Charge/spin density, Charge density difference; 10. Vacuum level and work function; 11. Wave-function...
    Leader badge
    Downloads: 603 This Week
    Last Update:
    See Project
  • 2
    MaxFEM

    MaxFEM

    Software for electromagnetic simulation

    MaxFem is an open software package for electromagnetic simulation by using finite element methods. The package can solve problems in electrostatics, direct current, magnetostatics and eddy-currents. Since version 0.4.0, MaxFEM requires Python 3. We have moved the installers to the MaxFEM website (see below). In order to improve MaxFEM, we will require you to fill out a simple form before downloading them.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 3
    IF97

    IF97

    Water & steam properties Java library

    Steam tables for industrial use according to the international standard for the properties of water and steam, the IAPWS-IF97 formulation and the international standards for transport and other properties. Hummeling Engineering BV develops engineering software in the fields of thermodynamics, mechanics, hydrodynamics, and digital signal processing.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    GSvit

    GSvit

    Fast FDTD solver with graphics card support

    Fast FDTD solver with graphics card support. Optimized for nanoscale optics - scanning near field optical microscopy, rough surface scattering and solar cells. Uses CUDA environment for graphics card operation.
    Downloads: 2 This Week
    Last Update:
    See Project
  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • 5

    Python Laboratory Operations Toolkit

    many useful snippets for using python in a laboratory

    A toolkit of Python software useful in a laboratory data acquisition and analysis environment. Includes support for such protocols as VXI-11 (and its extension, LXI), Vernier LabPro (now very old), and National Instruments DSTP (now very old). Also includes data analysis and modelling tidbits. Python3 updates are on the way in the very near future for the biggest packages. the vxi11 package is fully up-to-date, although see the blog post about python 3.13
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    Ion Beam Simulator
    Library for ion optics, plasma extraction and space charge dominated ion beam transport.
    Leader badge
    Downloads: 22 This Week
    Last Update:
    See Project
  • 7
    Motofit co-refines Neutron and X-ray reflectometry data, using the Abeles matrix / Parratt recursion and least squares fitting (Genetic algorithm or Levenberg Marquardt). It works in the IGOR Pro environment (TM Wavemetrics).
    Leader badge
    Downloads: 10 This Week
    Last Update:
    See Project
  • 8
    jOcular

    jOcular

    Optical Design Software for simulating systems of lenses, prisms, etc.

    Optical Design Software for optical systems comprised of light sources, lenses, apertures, prisms, imagers, photometers, etc. Simulate light through the system and compute images and intensities at various locations in the design.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    ED Software project contains several programs used (mostly) for processing gas-phase electron diffraction (GED) experimental data.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • 10
    DBRplot

    DBRplot

    Plots reflectivity response of Distributed Braggs Reflector mirrors

    A free windows software for designing and modelling of dielectric anti-reflection coating and Fabry-Perot cavity effects based on Distributed Braggs Reflector (DBR) mirrors. Read 'readme.txt' file before you use this application. Also, have a look at the "Fabry-Perot cavity" diagram to get a feel of the structure of your cavity. The code is written based on the Transfer Matrix Method for TE incidence. Clever insertion of the input parameters in the GUI will let you simulate the reflectivity...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    The MetCal/SPA package provides diagnostic resources for users and developers of meteorological apps. The Shared Procedure Archive is a dynamic set of file I/O, analysis routines and APIs for third party packages accessible through the MetCal GUI.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    parabola
    This program manipulates representations of compact semi-simple Lie algebras. It can compute tensor products, (anti-)symmetric parts and the branching rules into maximal subalgebras.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    This program calculates excitation energies E0 and E2 transition strengths within the "Confined Beta Soft" nuclear structure model as described in [N. Pietralla and O. M. Gorbachenko, Phys. Rev. C 70, 011304(R) (2004)]. Parameter fits are possible.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    pfcalc is a pipe friction calculator using the Darcy-Weisbach equation. gpfcalc is a Gtk front-end for pfcalc. Qpfcalc is a Qt front-end for pfcalc.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 15
    GXSM

    GXSM

    Scanning Probe Microscopy Controller and Data Visualization Software

    ...High-Speed external PAC-PLL hardware option with digital DSP link. Based on several hardware options it supports a commercially available DSP hardware and provided also Open Source Code for all the low level signal processing tasks and instrument controls in a most flexible and adaptable manner. All latest software is available via SVN only or Live Demo/Install CD: http://www.ventiotec.de/linux/GXSM-Linux.iso
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    DataMelt

    DataMelt

    Computation and Visualization environment

    DataMelt (or "DMelt") is an environment for numeric computation, data analysis, computational statistics, and data visualization. This Java multiplatform program is integrated with several scripting languages such as Jython (Python), Groovy, JRuby, BeanShell. DMelt can be used to plot functions and data in 2D and 3D, perform statistical tests, data mining, numeric computations, function minimization, linear algebra, solving systems of linear and differential equations. Linear, non-linear...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    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 PHY-9528844 and DOE grant DE-SC0000661 Note that as of July 2023, all future development and release packages will be occur at https://github.com/FRIBDAQ/SpecTcl
    Leader badge
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    freesteam
    Open source steam property routines in C. Implements the IAPWS-IF97 steam tables from the International Association for the Properties of Water and Steam. Includes two-way property solvers and test suite. Can be used from C/C++, Fortran, Python, LabVIEW, Octave and ASCEND.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 19

    Frame3DD

    Static and Dynamic Structural Analysis of 2D and 3D frames.

    FRAME3DD is a program for the static and dynamic structural analysis of two- and three-dimensional frames and trusses with elastic and geometric stiffness.
    Leader badge
    Downloads: 66 This Week
    Last Update:
    See Project
  • 20
    GridLAB-D
    GridLAB-D is a new power system simulation tool that provides valuable information to users who design and operate electric power transmission and distribution systems, and to utilities that wish to take advantage of the latest smart grid technology. It incorporates advanced modeling techniques with high-performance algorithms to deliver the latest in end-use load modeling technology integrated with three-phase unbalanced power flow, and retail market systems. Historically, the inability...
    Leader badge
    Downloads: 12 This Week
    Last Update:
    See Project
  • 21
    Kanon

    Kanon

    A tool for examining renormalizable field theories (physics).

    A tool for physics/field theory. Allows to a assemble an action integral interactively by drag and drop. Checks whether the action integral is scale invariant. Allows to determine additional marginal interactions. Contains data of dozens of renormalizable field theories.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    JDFTx

    JDFTx

    Joint Density Functional Theory

    JDFTx is a plane-wave density functional theory code designed for electronic structure theory development. One prominent unique capability is the treatment of solvated electronic systems using joint density functional theory. Please see http://jdftx.org for download and compile instructions, tutorials, documentation and citation information.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    WaveTrain (Python)

    WaveTrain (Python)

    Quantum dynamics of chain-like systems using tensor train formats

    WaveTrain is an open-source software for numerical simulations of chain-like quantum systems with nearest-neighbor (NN) interactions only (with or without periodic boundary conditions). This Python package is centered around tensor train (TT, or matrix product) representations of quantum-mechanical Hamiltonian operators and (stationary or time-evolving) state vectors.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24

    SidClock

    *nix Sidereal Clock

    *nix Sidereal Clock Application
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25

    PY-Nodes

    Code for finding nodes in a material using first-principle approach.

    PY-Nodes is a Python 3 based code designed for searching nodes (bands-degenerate points) associated with two or more bands in a given material using the first-principle approach. This code is helpful in efficient searching of the nodes present in the topological semimetals such as- Weyl semimetals, Dirac semimetals & nodal-line semimetals. The code is presently interfaced with the WIEN2k package. The algorithm of the code is based on the Nelder-Mead’s function-minimization approach. The code...
    Downloads: 1 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB