U.S. flag

An official website of the United States government

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

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.

Search Publications

NIST Authors in Bold

Displaying 1076 - 1100 of 74084

A Call for a National Community Resilience Extension Partnership: Building a Sustained Multi-Disciplinary Bridge from Community Resilience Research to Practice and Communities

March 31, 2023
Author(s)
Christopher Clavin, Jennifer Helgeson, Matthew Malecha, Shubha Shrivastava
Establishing a national Community Resilience Extension Partnership, a boundary organization directly linking the scientific community with local planners and policymakers, would provide the research-to-practice infrastructure needed to accelerate the

Effect of Alkali-Silica Reaction on the Flexural Behavior of Beams with Tensile Lap Splices

March 31, 2023
Author(s)
Long Phan, Jonathan Weigand, Fahim H. Sadek, Adam L. Pintar, Sorin Marcu, Travis Thonstad, Timothy Barrett
A series of 19 beam specimens, with varying stirrup spacing and tensile lap splice lengths, were tested at the National Institute of Standards and Technology (NIST) under four-point loading to investigate the impact of alkali silica reaction (ASR) on the

Humanized Monoclonal Antibody IgG1k, NISTmAb RM 8671 Summary of 5 Year Stability Verification (5YSV)

March 31, 2023
Author(s)
Katharina Yandrofski, John E. Schiel, Trina Mouchahoir, Srivalli Telikepalli, N. Alan Heckert, Dean C. Ripple, Paul C. DeRose, Karen W. Phinney, John Marino
NISTmAb RM 8671 is an IgG1κ monoclonal antibody that has been extensively characterized and released as the first of its kind biopharmaceutical reference material in 2016. This material was intended primarily for use in evaluating the performance of

Implementing NIST Infiltration Correlations

March 31, 2023
Author(s)
Jyrteanna Teo, Lisa Ng
This tutorial is a guide on how to implement the NIST infiltration correlations (Ng et al., 2021) into EnergyPlus building energy simulation software for the US Department of Energy prototype commercial buildings. The implementation can also be generalized

ITS-90 SPRT Calibration from the Ar TP to the Zn FP

March 30, 2023
Author(s)
Michal J. Chojnacky, Tobias Herman, Ken Hill, Steffen Rudtsch, Inseok Yang, Petrus Paulus Maria Steur, Roberto Dematteis, Lopardo Lopardo, Fernando Sparasci, Catherine Martin, Lara Risegari, Januarius Widiatmo, Tohru Nakano, Ikuhiko Saito, Klaus Natorf Quelhas, Patricia Giorgio, Jianping Sun, Jintao Zhang, Jonathan Pearce, Jayne Gray
This is a report to the Consultative Committee for Thermometry (CCT) on the key comparison 9 of SPRT calibration on the International Temperature Scale of 1990 (ITS-90) from 83.8058 K (the Ar triple point) to 692.677 K (the Zn freeze point). The comparison

LabelVizier: Interactive Validation and Relabeling for Technical Text Annotations

March 30, 2023
Author(s)
Xiaoyu Zhang, Xiwei Xuan, Rachael Sexton, Alden A. Dima
With the rapid accumulation of text data brought forth by advances in data-driven techniques, the task of extracting "data annotations"—concise, high-quality data summaries from unstructured raw text—has become increasingly important. Researchers in the

Magnetic Resonance Imaging Biomarker Calibration Service: NMR Measurement of Isotropic Water Diffusion Coefficient

March 30, 2023
Author(s)
Stephen E. Russek, Katy Keenan, Karl Stupic, Nikki Rentz, Michael Boss, Kevin J. Coakley, Amanda Koepke, Cassandra Stoffer
This document describes a calibration service to measure the water diffusion coefficient, or diffusivity, in reference materials and tissue mimics using nuclear magnetic resonance (NMR) techniques. This calibration is restricted to materials which exhibit

Practical Correlation-Matrix Approaches for Standardized Testing of Wireless Devices in Reverberation Chambers

March 30, 2023
Author(s)
Kate Remley, Sara Catteau, Ahmed Hussain, Carnot Nogueira, Mats Kristoffersen, John Kvarnstrand, Brett Horrocks, Jonas Friden, Rob Horansky, Dylan Williams
We extend the autocorrelation-based approaches currently used in standards to full correlation matrix-based approaches in order to identify correlation between both spatially adjacent and non-adjacent samples in reverberation-chamber measurements. We

The Digital NIST: Challenges And Opportunities in the Digital Transformation of NIST's Reference Materials

March 30, 2023
Author(s)
William Dinis Camara, Steven J. Choquette, Katya Delak, Robert Hanisch, Benjamin Long, Melissa M. Phillips, Jared Ragland, Kate Rimmer
Early in 2022 NIST embarked on a pilot project to produce digital calibration reports and digital certificates of analysis for reference materials. The goal of the project is to produce a few examples of digital reports and certificates for the purpose of

Wind-driven Fire Spread to a Structure from Firewood Piles

March 30, 2023
Author(s)
Erik L. Johnsson, Kathryn Butler, Marco G. Fernandez, Shonali Nazare, Alexander Maranghides
A series of field experiments was conducted to examine the effects on fire spread toward a structure for firewood piles under conditions that may be encountered in a wildland-urban interface (WUI) fire. The fire behavior of a variety of firewood types in

Static Analysis Tool Exposition (SATE) VI: Mobile Track Report

March 29, 2023
Author(s)
Michael Ogata
Mobile applications are pervasive in the public and private sectors. Enterprises in these sectors should evaluate the mobile applications used within their infrastructures for vulnerabilities to minimize potential risk. The SATE VI Mobile track seeks to

The Language of Trustworthy AI: An In-Depth Glossary of Terms

March 29, 2023
Author(s)
Daniel Atherton, Reva Schwartz, Peter Fontana, Patrick Hall
The NIST (National Institute of Standards and Technology) glossary of terms related to trustworthy and responsible artificial intelligence (AI) and machine learning (ML) intends to promote a common understanding and effective communication among

Toward improved quantum simulations and sensing with trapped two-dimensional ion crystals via parametric amplification

March 29, 2023
Author(s)
Matthew Affolter, Wenchao Ge, Bryce Bullock, Shaun Burd, Kevin Gilmore, Jennifer Lilieholm, Allison Carter, John J. Bollinger
Improving coherence is a fundamental challenge in quantum simulation and sensing experiments with trapped ions. Here we discuss, experimentally demonstrate, and estimate the potential impacts of two different protocols that enhance, through motional

Absence of Magnetic Interactions in Ni-Nb Ferromagnet-Superconductor Bilayers

March 28, 2023
Author(s)
Nathan Satchell, Patrick Quarterman, Julie A. Borchers, Gavin Burnell, Norman Birge
Studies of ferromagnet-superconductor hybrid systems have uncovered magnetic interactions between the competing electronic orderings. The Electromagnetic Proximity Effect predicts the formation of a spontaneous vector potential inside a superconductor

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

March 28, 2023
Author(s)
Peter Vouras, Kumar Vijay Mishra, Aly Artusio-Glimpse, Samuel Pinilla, Angeliki Xenaki, David W. Griffith, Karen Egiazarian
Rapid developments in synthetic aperture (SA) systems, which generate a larger aperture with greater angular resolution than is inherently possible from the physical dimensions of a single sensor alone, are leading to novel research avenues in several

Interference induced anisotropy in a two-dimensional dark state optical lattice

March 27, 2023
Author(s)
Ian Spielman, Gediminas Juzeliunas, Edvinas Gvozdiovas
We describe a two-dimensional optical lattice for ultracold atoms with spatial structure below the diffraction limit created by a bichromatic optical standing wave. At every point in space these fields couple the internal atomic states in a three-level

MPpredictor: An Artificial Intelligence-Driven Web Tool for Composition-Based Material Property Prediction

March 27, 2023
Author(s)
Kamal Choudhary, Francesca Tavazza, Carelyn E. Campbell, Vishu Gupta, Yuwei Mao, Kewei Wang, Wei-keng Liao, Alok Choudhary, Ankit Agrawal
The applications of artificial intelligence, machine learning, and deep learning techniques in the field of materials science are becoming increasingly common due to their promising abilities to extract and utilize data-driven information from available

Stripe Helical Magnetism and Two Regimes of Anomalous Hall Effect in NdAlGe

March 27, 2023
Author(s)
Hung-Yu Yang, Jonathan N. Gaudet, Rahul Verma, Santu Baidya, Faranak Bahrami, Xiaohan Yao, Cheng-Yi Huang, Lisa Debeer-Schmitt, Adam A. Aczel, Guangyong Xu, Hsin Lin, Arun Bansil, Bahadur Singh, Fazel Tafti
We report the magnetic and electronic transport properties of the inversion and time-reversal symmetry breaking Weyl semimetal NdAlGe. This material is analogous to NdAlSi whose helicalmagnetism is a rare example of a Weyl-mediated collective phenomenon
Displaying 1076 - 1100 of 74084