Numerical methods & software

News and Updates

Smart City Holistic Key Performance Indicators Support Community Benefits

NIST International Collaboration Develops New Framework for Smart Cities and Communities

February 28, 2022

Have you ever wondered what it is about a smart city or community that makes it ‘smart?’ In an international collaboration with Dr. Martin Serrano of the

NIST Researchers Develop Algorithm for Assuring Quality-of-Service in 5G/6G Networks

February 19, 2022

5G and 6G networks will differ greatly in composition and services, compared to one-size-fits-all 4G networks. 5G and 6G networks must provide varying services

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

Projects and Programs

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µMAG: Micromagnetic Modeling Activity Group

Ongoing

Micromagnetics concerns the patterns of magnetization that arise in materials on the scale of nanometers. Understanding these structures is key to technologies

Computational Chemistry

Ongoing

Ab initio computational chemistry is considered to be one of the holy grails of computational science. The benefits to society range from lighter, stronger

Understanding Confined Fluids using Theory, Simulation, and Data-Driven Methods

Ongoing

Theory and simulation are used to advance our understanding of pure and multicomponent fluids confined in tight spaces, such as the pores of a zeolite, metal

Virtual Cement and Concrete Testing Laboratory

Ongoing

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

Publications

Online Service Caching and Routing at the Edge with Unknown Arrivals

May 20, 2022

Author(s)

Siqi Fan, I-Hong Hou, Van Sy Mai, Lotfi Benmohamed

Robust Automated Recognition of Noisy Quantum Dot States

February 25, 2022

Author(s)

Joshua Ziegler, Thomas McJunkin, Emily Joseph, Sandesh Kalantre, Benjamin Harpt, Donald Savage, Max Lagally, Mark Eriksson, Jacob Taylor, Justyna Zwolak

The current autotuning approaches for quantum dot (QD) devices, while showing some success, lack an assessment of data reliability. This leads to unexpected

A sparsity-constrained sampling method with applications to communications and inverse scattering

February 15, 2022

Author(s)

Jake Rezac, Isaac Harris

We introduce a technique, the sparse direct sampling method (sparse-DSM), to estimate properties of a region from signals which probe the region. We demonstrate

End-to-End Quality-of-Service Assurance with Autonomous Systems: 5G/6G Case Study

February 10, 2022

Author(s)

Van Sy Mai, Richard La, Tao Zhang

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

Network Modeling Software

This software is a set of NetworkX additions for the creation of graphs to model networks.Graphicality Testing -- This is a set of routines for testing if a

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