U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Breadcrumb

  1. Home

Dataset Search

Search results

38 results found

Source of the Refl1d program for modeling and analyzing neutron and X-ray reflectometry data, with the addition of distributed roughness capability.

Data provided by  National Institute of Standards and Technology

Source of the Refl1d program for modeling and analyzing neutron and X-ray reflectometry data, with the addition of distributed roughness capability.

Tags: neutron scattering,reflectometry,polarized,Bayesian,roughness,python,

Modified: 2024-02-22

Views: 0

FEASST: Free Energy and Advanced Sampling Simulation Toolkit

Data provided by  National Institute of Standards and Technology

The Free Energy and Advanced Sampling Simulation Toolkit (FEASST) is a free, open-source, modular program to conduct molecular and particle-based simulations with flat-histogram Monte Carlo and molecular dynamics methods. It is a software written in C++ and python which is made publicly available to aid in reproducibility. It is also provided as a service to the scientific community in which there are few , if any, Monte Carlo programs that support flat histogram methods and advanced sampling algorithms. This software is expected to be updated frequently with new methods.

Tags: monte carlo,molecular simulation,free energy,flat histogram,C++,python,

Modified: 2024-02-22

Views: 0

JARVIS: Joint Automated Repository for Various Integrated Simulations

Data provided by  National Institute of Standards and Technology

JARVIS (Joint Automated Repository for Various Integrated Simulations) is a repository designed to automate materials discovery using classical force-field, density functional theory, machine learning calculations and experiments.

The Force-field section of JARVIS (JARVIS-FF) consists of thousands of automated LAMMPS based force-field calculations on DFT geometries. Some of the properties included in JARVIS-FF are energetics, elastic constants, surface energies, defect formations energies and phonon frequencies of materials.

Tags: Density functional theory,classical interatomic potential,force-field,python,JARVIS,MGI,MDCS,RESTAPI,automation,

Modified: 2024-02-22

Views: 0

Certified values of iodine in CRMs of food matrices in mg/kg units. The uncertainties are expanded uncertainties at approximately 95% confidence.

Data provided by  National Institute of Standards and Technology

A comparison of the expanded uncertainty for certified values of iodine in food matrix CRMs. The CRMS were found by searching The European Virtual Institute for Speciation Analysis (EVISA) database using the terms "Iodine" and "Certified" in the Material category. The uncertainties are expanded uncertainties at approximately 95% confidence.

Tags: food,nutrition,dietary supplements,Standard Reference materials,reference materials,SRM,RM,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3239 Isoflavones Calibration Solution

Data provided by  National Institute of Standards and Technology

SRM 3239 Isoflavones Calibration Solution - This Standard Reference Material (SRM) is intended primarily for use in calibration of instruments and techniques used for the determination of isoflavones. SRM 3239 consists of two solutions containing isoflavones at levels that reflect the mass fraction ratios found in soy products. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference Material,SRM,SRM 3239,certified values,nutrition,dietary supplements,isoflavones,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3235 Soy Milk

Data provided by  National Institute of Standards and Technology

SRM 3235 Soy Milk - This Standard Reference Material (SRM) is intended primarily for validation of methods for determining vitamins, elements, proximates, fatty acids, and amino acids in soy milk and similar materials. This SRM can also be used for quality assurance when assigning values to in-house reference materials. The SRM is a soy milk prepared by a commercial manufacturer. A unit of SRM 3235 consists of 10 ampoules, each containing approximately 10 mL of material. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference Material,SRM,SRM 3235,soy milk,soy,certified values,reference values,food,nutrition,dietary supplements,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3252 Protein Drink Mix

Data provided by  National Institute of Standards and Technology

SRM 3252 Protein Drink Mix - This Standard Reference Material (SRM) is intended primarily for validation of methods for determining proximates, fatty acids, cholesterol, vitamins, elements, and amino acids in protein drink mixes and similar materials. This SRM can also be used for quality assurance when assigning values to in-house reference materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference Material,SRM,SRM 3252,protein drink mix,certified values,reference values,food,nutrition,dietary supplements,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3262 St. John's Wort (Hypericum perforatum L.) Aerial Parts

Data provided by  National Institute of Standards and Technology

SRM 3262 St. John's Wort (Hypericum perforatum L.) Aerial Parts - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of chlorogenic acid, flavonoids, naphthodianthrones, and toxic elements in Hypericum perforatum L. and similar materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3262,St. John's wort,nutrition,dietary supplements,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3264 St. John's Wort (Hypericum perforatum L.) Methanol Extract

Data provided by  National Institute of Standards and Technology

SRM 3264 St. John's Wort (Hypericum perforatum L.) Methanol Extract - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of chlorogenic acid, flavonoids, naphthodianthrones, and toxic elements in methanol extracts of Hypericum perforatum L. and similar materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3264,St. John's wort,nutrition,dietary supplements,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0

SRM 3281 Cranberry (Fruit)

Data provided by  National Institute of Standards and Technology

SRM 3281 Cranberry (Fruit) - This Standard Reference Material (SRM) is intended primarily for use in validating analytical methods for the determination of organic acids in the fruit of cranberries and similar matrices. This SRM can also be used for quality assurance when assigning values to in-house control materials. This data is public in the Certificate of Analysis for this material.

Tags: Standard Reference materials,SRM,SRM 3281,Cranberry,food,nutrition,dietary supplement,anthocyanin,certified value,reference value,Food and Nutrition,

Modified: 2024-02-22

Views: 0