Search results
Results from the WOW.Com Content Network
Free open source MIT: OpenMM: Orac: No No Yes Yes No Yes No Yes No Molecular dynamics simulation program to explore free energy surfaces in biomolecular systems at the atomic level Free open source: Orac download page: NAMD + VMD: Yes Yes Yes Yes No Yes I Yes Yes Fast, parallel MD, CUDA Proprietary, free academic use, source code Beckman ...
Quantum chemistry computer programs are used in computational chemistry to implement the methods of quantum chemistry.Most include the Hartree–Fock (HF) and some post-Hartree–Fock methods.
NEMO 3-D [10] – enables multi-million atom electronic structure simulations in empirical tight binding; open source; an educational version is on nanoHUB and Quantum Dot Lab [11] nextnano [12] allows simulating geometry, electronic properties and electrical transport phenomena in various nanostructures using continuum models (commercial software)
DWSIM is an open-source CAPE-OPEN compliant chemical process simulator for Windows, Linux and macOS.DWSIM is built on top of the Microsoft .NET and Mono Platforms and features a graphical user interface (GUI), advanced thermodynamics calculations, reactions support and petroleum characterization / hypothetical component generation tools.
Spartan is a molecular modelling and computational chemistry application from Wavefunction. [2] It contains code for molecular mechanics, semi-empirical methods, ab initio models, [3] density functional models, [4] post-Hartree–Fock models, [5] and thermochemical recipes including G3(MP2) [6] and T1. [7]
This is a list of software used to simulate the material and energy balances of chemical process plants. Applications for this include design studies, engineering studies, design audits, debottlenecking studies, control system check-out, process simulation, dynamic simulation, operator training simulators, pipeline management systems, production management systems, digital twins.
Average size of an atom's nucleus 10 −14 meters — Uranium nucleus — 1.5 × 10 −14 meters Picometer: 10 −12 meters 10 −12 meters Gamma ray wavelength 10 −12 meters 10 −12 meters Electron compton wavelength: 2 × 10 −12 meters — Helium atom 3.1 × 10 −11 meters 2.5 × 10 −11 meters Hydrogen atom 2.5 × 10 −11 meters 3.1 ...
In the end, the model was replaced by the modern quantum-mechanical treatment of the hydrogen atom, which was first given by Wolfgang Pauli in 1925, using Heisenberg's matrix mechanics. The current picture of the hydrogen atom is based on the atomic orbitals of wave mechanics, which Erwin Schrödinger developed in 1926.