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Search Publications

NIST Authors in Bold

Displaying 3151 - 3175 of 74634

Interface History on Strain Field Evolution in Epoxy Resins

January 21, 2022
Author(s)
Edward Garboczi, Newell Moser, Jena McCollum, Jared Strutton, Abby Jennings, Brandon Runnels
To determine the viability of digital image correlation in the analysis of additively manufactured thermosets, we devised a testing method to examine the effect of interface history (i.e., time between interface formation and original material deposition)

Towards the Development of Soft Force and Pressure Sensors for Robot Safety Applications

January 21, 2022
Author(s)
Jennifer Case, Nagarajan Rangarajan, Joseph A. Falco, Kenny Kimble
When impacted by collaborative robots, human body parts deform which can cause surface and deep pain. Onset of pain has been determined as an acceptable injury threshold in human-robot impacts and has been related to pressure. Therefore, it is necessary to

Value Assignment of Reference Material 8404 Almond Flour for Allergen Detection

January 21, 2022
Author(s)
Melissa M. Phillips, David M. Bunk, Ashley Beasley Green, James H. Yen
The National Institute of Standards and Technology (NIST) recently released RM 8404 Almond Flour for Allergen Detection, which is intended for harmonizing measurements of allergenic proteins in foods. The material was purchased from a commercial vendor and

Value Assignment of Reference Material 8405 Hazelnut Flour for Allergen Detection

January 21, 2022
Author(s)
Melissa M. Phillips, David M. Bunk, Ashley Beasley Green, James H. Yen
The National Institute of Standards and Technology (NIST) recently released RM 8405 Hazelnut Flour for Allergen Detection, which is intended for harmonizing measurements of allergenic proteins in foods. The material was purchased from a commercial vendor

Advantage of Machine Learning over Maximum Likelihood in Limited-Angle Low-Photon X-Ray Tomography

January 20, 2022
Author(s)
Zhen Guo, Jungki Song, George Barbastathis, Michael Glinsky, Courtenay Vaughan, Kurt Larson, Bradley Alpert, Zachary H. Levine
Limited-angle X-ray tomography reconstruction is an ill-posed inverse problem in general. Especially when the projection angles are limited and the measurements are taken in a photon-limited condition, reconstructions from classical algorithms such as

Deep Learning for Radar Signal Detection in the 3.5 GHz CBRS Band

January 20, 2022
Author(s)
Raied Caromi, Alex Lackpour, Kassem Kallas, Thao T. Nguyen
This paper presents a comprehensive framework for generating radio frequency (RF) datasets, designing deep learning (DL) detectors, and evaluating their detection performance using both simulated and experimental test data. The proposed tools and

Development and Evaluation of Bluetooth Low-Energy Device for Electronic Encounter Metrics

January 20, 2022
Author(s)
Katy Keenan, Joe Aumentado, Harold Booth, Kimberly Briggman, Mikail Kraft-Molleda, Michele Martin, Rene Peralta, Angela Robinson, Krister Shalm, Michelle Stephens, Emily Townsend, Sae Woo Nam
The coronavirus disease 2019 (COVID-19) pandemic led to the need for tracking of physical contacts and potential exposure to disease. Traditional contact tracing can be augmented by electronic tools called "electronic contact tracing" or "exposure

RNA reference materials with defined viral RNA loads of SARS-CoV-2 - A useful tool towards a better PCR assay harmonization

January 20, 2022
Author(s)
Laura Vierbaum, Nathalie Wojtalewicz, Vanessa Lindig, Ulf Duhring, Hans-Peter Grunert, Christian Drosten, Victor Corman, Daniela Niemeyer, Sandra Ciesek, Holger Rabenau, Annemarie Berger, Martin Obermeier, Andreas Nitsche, Janine Michel, Martin Mielke, Jim Huggett, Denise O'Sullivan, Simon Cowen, Megan Cleveland, Peter Vallone, Samreen Falak, Andreas Kummrow, Thomas Keller, Ingo Schellenberg, Heinz Zeichhardt, Martin Kammel
The outbreak and pandemic spread of SARS-CoV-2, the cause of the novel coronavirus disease (COVID-19), led to the need for a reliable detection method to track the circulation of this virus. After introducing PCR methods for genome detection of SARS-CoV-2

Guide to Bluetooth Security

January 19, 2022
Author(s)
John Padgette, John Bahr, Mayank Batra, Rhonda Smithbey, Lily Chen, Karen Scarfone
Bluetooth wireless technology is an open standard for short-range radio frequency communication used primarily to establish wireless personal area networks (WPANs), and has been integrated into many types of business and consumer devices. This publication

Peak Fraction Purity and Chromatographic Resolution: Gaussian Peaks Revisited

January 19, 2022
Author(s)
Andre Striegel, Deborah Striegel
For incompletely resolved peak pairs, the purity of the chromatographic or fractographic fractions is oftentimes underestimated by the common user. This results in wasted time and effort while trying to achieve higher resolution than needed for the

Quantitative Determination of Cell Viability Using Absorbance Microscopy

January 19, 2022
Author(s)
Greta Babakhanova, Stephen Zimmerman, Laura Pierce, Sumona Sarkar, Nicholas Schaub, Carl Simon Jr.
Cell viability is an essential measurement for cell therapy products. One of the most common tests is Trypan blue (TB) dye exclusion where blue-stained cells are counted via imaging. Typically, live and dead cells are counted based on pixel intensities of

Respecting Ventilation: Now More than Ever

January 19, 2022
Author(s)
Andrew K. Persily
At Indoor Air 2005 the author gave a plenary in which he channeled Aretha Franklin to suggest that the IAQ field needed to give ventilation more R-E-S-P-E-C-T. That presentation and subsequent paper (Persily, 2006) stressed the science behind ventilation

1-GHz mid-infrared frequency comb spanning 3 to 13 mm

January 18, 2022
Author(s)
Nazanin Hoghooghi, Sida XIng, Peter Chang, Daniel Lesko, Alexander Lind, Greg Rieker, Scott Diddams
Mid-infrared (MIR) spectrometers are invaluable tools for molecular fingerprinting and imaging. Among the available spectroscopic approaches, MIR dual-comb absorption spectrometers have the potential to simultaneously combine the high-speed, high spectral

Evaluation of Indoor Environmental Concentrations in Buildings with Conditioned and Unconditioned Zones (IECCU) model for predicting TCPP concentrations in a low-energy test house

January 18, 2022
Author(s)
Dustin Poppendieck, Lisa Ng, Stephen Zimmerman
Globally over 100,000 different chemicals are manufactured every year (Levi et al. 2018). It is impossible to measure the fate of all of these chemicals in the wide range of indoor environments. The Indoor Environmental Concentrations in Buildings with

FAIR Digital Object Demonstrators 2021

January 18, 2022
Author(s)
Peter Wittenburg, Ivonne Anders, Christophe Blanchi, Merret Buurman, Carole Goble, Jonas Grieb, Alex Hardisty, Sharif Islam, Thomas Jejkal, Tibor Kalman, Christine Kirkpatrick, Laurence Lannom, Thomas Lauer, Giridhar Manepalli, Karsten Peters-von Gehlen, Andreas Pfeil, Robert Quick, Mark van de Sanden, Ulrich Schwardmann, Stian Soiland-Reyes, Rainer Stotzka, Zachary Trautt, Dieter Van Uytvanck, Claus Weiland, Philipp Wieder
This paper gives a summary of implementation activities in the realm of FAIR Digital Objects (FDO). It gives an idea which software components are robust and used for many years, which components are comparatively new and are being tested out in pilot

Guide on Secondary Thermometry: Industrial Platinum Resistance Thermometers

January 18, 2022
Author(s)
Jonathan Pearce, Richard Rusby, Kazuaki Yamazawa, Stefan Rudtsch, L Iacomini, Giuseppina Lopardo, D Rodney White, Weston L. Tew
This document is a part of guidelines, prepared by the Consultative Committee for Thermometry, on the techniques for approximating the International Temperature Scale of 1990. It collates information on industrial platinum resistance thermometry. The

Predicting the plateau modulus from molecular parameters of conjugated polymers

January 18, 2022
Author(s)
Abigail Fenton, Renxuan Xie, Melissa Aplan, Youngmin Lee, Michael Gill, Ryan Fair, Fabian Kempe, Michael Sommer, Chad R. Snyder, Enrique Gomez, Ralph Colby
The relationship between Kuhn length lk, Kuhn monomer volume v0, and plateau modulus GN0 , initially proposed by Graessley and Edwards for flexible polymers, and extended by Everaers, has a large gap in experimental data between the flexible and stiff

Colloid-Like Solution Behavior of Computationally Designed Coiled Coil Bundlemers

January 15, 2022
Author(s)
Nairiti J. Sinha, Rui Guo, Rajkumar Misra, Jeffrey Fagan, Antonio Faraone, Christopher J. Kloxin, Jeffery G. Saven, Grethe V. Jensen, Darrin J. Pochan
The use of colloidal theory for describing protein-protein interactions is a topic of ongoing debate in the biophysical community. This contention stems from the unavailability of synthetic protein-like model particles that are amenable to systematic

Understanding the dynamics of physiological changes, protein expression, and PFAS in wildlife

January 15, 2022
Author(s)
Jacqueline Bangma, T.C. Guillette, Paige Bommarito, Carla Ng, Jessica Reiner, Andrew Lindstrom, Mark Strynar
Per- and polyfluoroalkyl substances (PFAS) accumulation and elimination in both wildlife and humans is largely attributed to PFAS interactions with proteins, including but not limited to organic anion transporters (OATs), fatty acid binding proteins (FABPs
Displaying 3151 - 3175 of 74634