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Displaying 201 - 225 of 1507

The Expanding Role of National Metrology Institutes in the Quantum Era

July 12, 2022
Author(s)
Alexander Tzalenchuk, Nicolas Spethmann, Tim Prior, Jay H. Hendricks, Yijie Pan, Vladimir Bubanja, Guilherme Temporao, Dai-Hyuk Yu, Damir Ilic, Barbara L. Goldstein
Now that all base units are defined in terms of fundamental constants and can thus — at least in principle — be realized anytime and anywhere, rather than through a measurement chain leading back to unique physical artefacts, who holds the traceability

The need for multicomponent gas standards for breath biomarker analysis

July 7, 2022
Author(s)
Kavita Jeerage, Jennifer Berry, Jacolin Murray, Cassie Goodman, Paulina Piotrowski, Christina Jones, Christina Cecelski, Jennifer Carney, Katrice Lippa, Tara Lovestead
Exhaled breath is a non-invasive, information-rich matrix with the potential to diagnose or monitor disease, including infectious disease. Despite significant effort dedicated to biomarker identification in case control studies, very few breath tests are

Report of the 105th & 106th National Conference on Weights and Measures

June 30, 2022
Author(s)
Shelby Bowers, Yvonne Branden, Tina G. Butcher, Richard A. Harshman, Gloria Diane Lee, David Sefcik, Lisa Warfield
The 105th Annual Meeting of the National Conference on Weights and Measures (NCWM) was held virtually July 12 - 16, 2020. The 106th Annual Meeting of the National Conference on Weights and Measures (NCWM) was held July 18 - 23, 2021, at the Hyatt Regency

Protocols for leakage testing

June 1, 2022
Author(s)
Henne van Heeren, Matthew Davies, Armelle Keiser, Rudy Lagrauw, Darwin Reyes-Hernandez, Vania Silverio, Nicolas Verplanck
This document is written to serve as a guideline for the testing of microfluidic devices, which are devices designed to manipulate fluids that are confined in a small volume. For instance, a channel with at least one dimension smaller than 1 mm is a

5G NR and LTE Coexistence in Public Safety Communications

May 27, 2022
Author(s)
Sneihil Gopal, David W. Griffith
5G New Radio (NR) offers the promise of supporting new Public Safety Communications (PSC) services. Since the majority of the frequency bands worldwide are used by 4th Generation (4G) Long Term Evolution (LTE) and because options such as acquiring new

Improved Accuracy for Calibrated Mass Distribution Measurements of Bimetallic Nanoparticles

May 23, 2022
Author(s)
Kaleb Duelge, George Mulholland, Antonio Montoro Bustos, Michael Zachariah, Michael Zachariah, John Pettibone
Implementation of hybrid nanoparticles (HNPs), consisting of two different metal components, into applied systems has been hindered by an incomplete understanding of structural and chemical properties responsible for their enhanced, yet inconsistent
Displaying 201 - 225 of 1507