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OCEAN is a versatile package for calculating both optical/UV and core-edge spectroscopy. It is a first-principles code based on both ground-state density
The NIST Mass and Fragment Calculator is a program written in Visual Basic which calculates the mass of an input peptide or protein sequence along with m/z ions
OpenCalphad is an informal international collaboration of scientists and researchers interested in the development of high quality software and databases for
We implemented a Bayesian-statistics approach for subtraction of incoherent scattering from neutron total-scattering data. In this approach, the estimated
GSAS_USE addresses the effects of systematic errors in Rietveld refinements. The errors are categorized into multiplicative, additive, and peak-shape types
This software package implements functions to simulate spherical, ellipsoid and cubic polyatomic nanoparticles with arbitrary crystal structures and to
Lispix is a public domain image analysis program for Windows, written in LISP and maintained by David Bright. Lispix includes basic image processing functions
Purpose A tool for direct viewing of ThermoML files which include data and metadata. ThermoML files conform to the new XML-based ThermoML IUPAC standard
PURPOSE A tool for updating ThermoML files to the latest version of the ThermoML standard. Use The application is straightforward to use. It provides a self
The Logistic Function Profile Fitting program, LFPF, is based on a Fortran program written for DOS and originally issued under the name LOGIT. This program was
The web-based AutoDimer software was developed to rapidly screen previously selected PCR primers for primer-dimer and hairpin interactions in short DNA
gppois is a Bayesian tool for learning about a smooth function based on noisy measurements of its values. Users train a model of the true function on the noisy
An electron hologram is a fringe modulated image containing the amplitude and phase information of an electron transparent object. The HolograFREE routines
The NIST Isotope Enrichment Calculator is a program written in Visual Basic which determines the percentage of 15N enrichment of stable isotope-labeled peptides
The OOF software provides a finite-element modeling capability to users in the field of materials science. It encapsulates advanced numerical techniques, making
NOTICE: Some anti-virus programs have incorrectly reported that downloadable software previously available from this Web page contains malware. Both NIST and
The following information is provided as an aid in the validation of mathematical models used in quantitation with chromatographic data. This data may also be
Providing automated, virtual assistance in statistics for chemical analysis The NIST ABACUS ( App for Bayesian Analysis of Chemical quantities Using Shiny) is