Showing 14 open source projects for "problem a"

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  • 1
    GridLAB-D
    ...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 to effectively model and evaluate smart grid technologies has been a barrier to adoption; GridLAB-D is designed to address this problem. User documentation can be found at: http://gridlab-d.shoutwiki.com/wiki/Quick_links The source code is available from GitHub. See https://github.com/gridlab-d/gridlab-d. Issue tracking is handled by GitHub. See https://github.com/gridlab-d/gridlab-d/issues.
    Downloads: 18 This Week
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  • 2
    The FMI++ Library

    The FMI++ Library

    A High-level Utility Package for FMI-based Software Development

    ...On the other hand, such a low-level approach implies several prerequisites a simulation tool has to fulfill in order to be able to utilize such an FMI component. The FMI++ library addresses this problem for models and tools with interfaces according to the FMI specification by providing high-level functionalities, which ease the handling and manipulation of such models and tools. Furthermore, the FMI++ library provides utilities to implement FMI-compliant interfaces for a large class of simulation tools. The FMI++ library intends to bridge the gap between the basic FMI specifications and the typical requirements of simulation tools. ...
    Downloads: 0 This Week
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  • 3
     VASPMO

    VASPMO

    Visualization of wavefunctions calculated by VASP (New release: v0.41)

    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...
    Downloads: 1 This Week
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  • 4

    RElt

    calculates overlap, kinetic integrals for numerical atomic orbitals.

    ...The described algorithm exploits the properties of the prolate spheroidal coordinates. The overlap and the kinetic integrals in R^3 are reduced to the integrals over the rectangular domain in R^2, what substantially reduces the complexity of the problem. We prove that the integrand over the rectangular domain is continuous and does not have any slope singularities. For calculation of the integral over the rectangle any adaptive algorithm can be applied. The exemplary results were obtained by application of the adaptive Gauss quadrature. The implemented algorithm is described in my paper: "Numerical calculation of overlap and kinetic integrals in prolate spheroidal coordinates", International Journal of Quantum Chemistry, Volume 108, Issue 2, Year 2008, Pages 249–256 http://onlinelibrary.wiley.com/doi/10.1002/qua.21485/full
    Downloads: 0 This Week
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  • 5

    RSchr-5

    Solves one-electron Schrödinger equation, with SLEPc and PETSc

    RSchr-5 calculates the smallest eigenvalues of the one-electron Schrödinger equation. The solved problem is defined on the finite domain, which is a box. The problem is solved with the zero Dirichlet boundary conditions. The implemented algorithm uses Finite Element Method with B-splines as basis functions. Disctretization leads to generalized eigenvalue problem. Program RSchr-5 solves the generalized eigenvalue problem by algorithms implemented in SLEPc amd PETSc libraries. ...
    Downloads: 0 This Week
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  • 6

    RAtom

    solves nonlinear Kohn-Sham equation for the neutral atom.

    RAtom solves nonlinear Kohn-Sham equation for the neutral atom. The adaptive algorithm based on finite element method (FEM) is implemented. Discretization of the differential eigenvalue problem is done by finite element method with Lobatto polynomials as a basis functions. High order Gauss quadratures are applied in order to obtain the total energy of atom with absolut accuracy of 1E-6 hartree. Disctretization leads to generalized eigenvalue problem, which is solved by procedures from LAPACK libraries. The program is implemented in C++, it runs as a single thread. ...
    Downloads: 0 This Week
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  • 7
    Gimias

    Gimias

    Graphical Interface for Medical Image Analysis and Simulation

    GIMIAS is a workflow-oriented environment for solving advanced biomedical image computing and individualized simulation problems, which is extensible through the development of problem-specific plug-ins. In addition, GIMIAS provides an open source framework for efficient development of research and clinical software prototypes integrating contributions from the Physiome community while allowing business-friendly technology transfer and commercial product development.
    Downloads: 3 This Week
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  • 8
    Discrete Dipole Aproximation Project

    Discrete Dipole Aproximation Project

    Plugin orientated Discrete Dipole Approximation (DDA) Solver

    Discrete Dipole Approximation Project, is a software package designed to solve the Discrete Dipole Problem by the Discrete Dipole Approximation (DDA) method. This software is desgined to be plugin operated allowing for easy implimincation of new solver methods to improve the efficienty of the code. The plugin support also allow the program to write its output in multiple formats and structures defined by plugins.
    Downloads: 0 This Week
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  • 9
    Depolarization analysis tools

    Depolarization analysis tools

    Tools for the accurate analysis of Raman depolarization measurement

    This programme addresses the notoriously difficult problem to quantitatively link measured Raman depolarization values to theoretical polarizability tensor quantities, since quantum calculations do not incorporate experimental parameters. A numerical model is programme to calculate, for realistic experimental configurations, effective Raman line strength functions, which find their way into depolarization ratios.
    Downloads: 2 This Week
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  • 10

    LIME

    LIME is a software tool for creating multiphysics simulation codes.

    ...LIME is intended to be especially useful when separate computer codes (which may be written in any standard computer language) already exist to solve di fferent parts of a multiphysics problem. LIME provides the key high-level software (written in C++), a well defi ned approach (with example templates), and interface requirements to enable the assembly of multiple physics codes into a single coupled-physics simulation code. To achieve its flexible lightweight design objectives, LIME 1.0 requires that some amount of customized software be written each time a new multiphysics application is created. ...
    Downloads: 2 This Week
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  • 11

    ViennaFEM

    A finite element solver using state-of-the-art programming techniques.

    ViennaFEM is a library-centric implementation of the finite element method in C++. It features a symbolic math kernel, which manipulates the strong or weak form of the problem and automatically derives the discrete form. ViennaFEM is built on top of the following libraries: ViennaMath provides the symbolic math kernel, ViennaGrid (with ViennaData) allows for a generic grid handling and quantity storage, while ViennaCL provides the linear solvers and GPU acceleration.
    Downloads: 2 This Week
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  • 12
    STEA is a problem solving suite based on Evolutionary Algorithms.
    Downloads: 0 This Week
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  • 13
    CFD scientific software. Provides simulation of 3D CFD problem based on Quasi-Gas Dynamics approach with radiation processes token into account. Lots of spectral intervals are considered. Parallel MPI/OpenMP-based implementation is provided.
    Downloads: 0 This Week
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  • 14
    program which solves the poisson problem using multigrid and finite elements
    Downloads: 0 This Week
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