Numerical methods & software

News and Updates

Not Just a Pretty Facet: New NIST algorithm for NV center diamond magnetometry speeds up experiments by an order of magnitude

February 19, 2021

Some might call it a diamond in the rough: NV center magnetometry, which uses specially adapted diamonds to make sensitive measurements of magnetic signals, is

A medical worker administers a nasal swab test to a person in a car.

NIST Innovation Could Improve Detection of COVID-19 Infections

October 5, 2020

A multidisciplinary research team at the National Institute of Standards and Technology (NIST) has developed a way to increase the sensitivity of the primary

Calibration of a Commercial Rheometer for Orthogonal Superposition Measurement

March 12, 2020

NIST researchers have addressed crucial calibration procedures for an advanced rheological technique that can make measurements on the structural dynamics of

Projects and Programs

Virtual Cement and Concrete Testing Laboratory

The Virtual Cement and Concrete Testing Laboratory (VCCTL) project develops and integrates state-of-the-art computational materials science tools into a user

Simulation Management Tools

An important part of the MGI effort is providing infrastructure and tools to enable reproducible research in computational materials science. For reproducible

Computational Micromagnetics

NIST researchers develop simulation tools to support modeling, measurement and fundamental understanding of micromagnetic physics.

zCompleted - Modeling Dispersion Rheology for Non-Spherical Particles

The flow of polymer composites via injection molding, spraying or spreading on surfaces is crucial to polymer composite manufacturing. For single-phase liquids

Publications

optbayesexpt: Sequential Bayesian Experiment Design for Adaptive Measurements

February 3, 2021

Author(s)

Robert McMichael, Sean M. Blakley, Sergey Dushenko

Optbayesexpt is a free, open-source python package that provides adaptive algorithms for efficient estimation/measurement of parameters in a model function

Linking Theory to Practice: Predicting Ballistic Performance from Mechanical Properties of Aged Body Armor

August 24, 2020

Author(s)

Amanda L. Forster, Dennis D. Leber, Amy E. Engelbrecht-Wiggans, Virginie A. Landais, Allen Chang, Emilien J. Guigues, Guillaume Messin, Michael A. Riley

It has long been a goal of the body armor testing community to establish an individualized, scientific-based protocol for predicting end-of-life of fielded body

CONTAM User Guide and Program Documentation Version 3.4

August 4, 2020

Author(s)

William S. Dols, Brian J. Polidoro

NexusLIMS: Leveraging Shared Microscopy Resources for Data Analysis with a Configurable Laboratory Information Management System

July 30, 2020

Author(s)

Joshua A. Taillon, Raymond L. Plante, Marcus W. Newrock, June W. Lau, Gretchen R. Greene

Software

HVAC SIMulation PLUS other systems (HVACSIM+)

May 11, 2021

The first version of HVACSIM+, which stands for “HVAC SIMulation PLUS other systems”, was introduced by National Institute of Standards and Technology (NIST) in

NIST's Integrated Colony Enumerator (NICE)

January 4, 2021

Enumeration of bacterial colonies on an agar plate is simple in concept, but automated colony counting is difficult due to variations in colony color, size

Limits of Detection - ASTM E2677

September 12, 2018

ASTM subcommittee E54.01 has developed a Standard Test Method for the determination of Limit of Detection (LOD) in trace explosive detectors. The Method was

Custom Lifetime Imaging Platform (CLIP)

CLIP is an analysis program for fluorescence lifetime images. It provides the user with the ability to fit or calculate the phasor plots for lifetime decays

Tools and Instruments

Automated Scanning Electron Microscope

The ASPEX Personal SEM (PSEM) is a tungsten filament scanning electron microscope optimized for automated particle analysis. The system was designed with

Awards

Xiao Tang - 2016 Fellow of the American Physical Society

For outstanding contributions in optical technologies and systems, with application to quantum communications, spectrometry, and digital