NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

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 1976 - 2000 of 73697

Comparison of Direct and Indirect Measures of Transport Efficiency in Single Particle ICP-MS

December 16, 2023
Author(s)
Karen Murphy, Antonio Montoro Bustos, Lee L. Yu, Monique Johnson, Michael R. Winchester
Accurate calibration of the fraction of introduced sample that is transported to the plasma, termed "transport efficiency" (TE), is required for spICP-MS measurement of particle number concentration (PNC) and for measurement of particle size (diameter, PS)

Picoliter Drop Deposition of SnO2 Nanoparticles onto Microsensor Platforms

December 14, 2023
Author(s)
Elvin Beach, Kurt D. Benkstein, Krenar Shqau, Christopher Montgomery, Patricia Morris, Stephen Semancik
Microhotplates produced by micromachining processes provide a robust substrate for miniaturized solid-state gas sensors; however, it can be challenging to locally deposit solution-suspended nanomaterials for sensing directly onto these small (≈ 100 µm), 3

Recommendations from the Ocean Carbonate System Intercomparison Forum: Quantifying and reducing uncertainties in the calculations of carbonate system equilibrium in the oceans

December 14, 2023
Author(s)
Brendan Carter, Jonathan Sharp, Andrew Dickson, Marta Alvarez, Michael Fong, Maribel Garcia-Ibanez, Ryan Woosley, Takeshita Yuichiro, Leticia Barbero, Robert Byrne, Wei-Jun Cai, Melissa Chierici, Simon Clegg, Regina Easley, Andrea Fassbender, Kalla Fleger, Xinyu Li, Macarena Martin-Mayor, Katelyn Schockman, Aleck Wang Zhaohui
The ocean carbonate system is critical to monitor because it plays a major role in regulating Earth's climate and marine ecosystems. It is monitored using a variety of measurements, and it is commonly understood that all major components of the seawater

Spatially-Dependent Model for Rods and Cones in the Retina

December 14, 2023
Author(s)
Daniel M. Anderson, Danielle Brager, Anthony J. Kearsley
We develop a mathematical model for photoreceptors in the retina. We focus on rod and cone outer segment dynamics and interactions with a nutrient source associated with the retinal pigment epithelium cells. Rod and cone densities (number per unit area of

Advancements in Computational Wind Engineering Workshop Report

December 13, 2023
Author(s)
Donald Scott, Jennifer Goupil, Melissa Burton, Catherine Gorle, Ahsan Kareem, Ted Stathopoulos, Bradley Young
In September 2022, the Structural Engineering Institute of the American Society of Civil Engineers commenced a project under National Institute of Standards and Technology Contract No. 133ND22PNB730391 to develop workshops on Advancement in Computational

Automated interpretation of firearm mark comparison results

December 13, 2023
Author(s)
Martin Baiker-Sorensen, Ivo Alberink, Laura Granell, Leen van der Ham, Erwin J.A.T. Mattijssen, Erich Smith, Johannes A. Soons, Peter Vergeer, Xiaoyu Alan Zheng
In this article an automated approach for interpretation of firearm mark comparison results is presented. First, similarity scores are derived for marks typically encountered on primers of fired cartridge cases: aperture shear striations as well as

Backdraft Experiments and Large Eddy Simulations in a scaled compartment

December 13, 2023
Author(s)
Marcos Vanella, Ryan Falkenstein-Smith, Thomas Cleary
An extensive set of backdraft experiments has been performed at the NIST National Fire Research Laboratory. These experiments were conducted in a reduced scale compartment, and are part of defining the conditions conducive to backdraft. Further, the

Kerr-induced synchronization of a cavity soliton to an optical reference

December 13, 2023
Author(s)
Gregory Moille, Jordan Stone, Michal J. Chojnacky, Curtis Menyuk, Kartik Srinivasan
The phase-coherent frequency division of a stabilized optical reference laser to the microwave domain is made possible by optical-frequency combs (OFCs). OFC-based clockworks lock one comb tooth to a reference laser, which probes a stable atomic transition

Maintenance and Operations of Manufacturing Digital Twins

December 13, 2023
Author(s)
Alp Akcay, Stephan Biller, Boon Ping Gan, Christoph Laroque, Guodong Shao
Digital twins have become an important element in smart manufacturing. As any other product, digital twins also have a lifecycle, starting from specifying the requirements of the digital twins until their decommissioning. As part of the Manufacturing and

Best practices in NMR metabolomics: Current state

December 12, 2023
Author(s)
Tracey Schock, Amanda Bayless, Goncalo Gouveia, Robert Powers, Valerie Copie, John Cort, Hamid R. Eghbalnia, Wimal Pathmasiri, David S Wishart, Erik Andersson, Robert Brua, Leo Cheng, Chaevien Clendinen, Darcy Cochran, Alexandra Crook, Michah Jeppesen, Amith Maroli, Matthew Merritt, Heidi Roth, Isin Sakallioglu, Saurav Sarma, Lloyd Sumner, Panteleimon Takis, Mario Uchimiya
A literature survey was conducted to identify current practices used by NMR metabolomics investigators. A total of 463 papers from 2020 and 80 papers from 2010 were selected from PubMed. The papers were manually analyzed by a team of investigators to

Flexible formulation of value for experiment interpretation and design

December 12, 2023
Author(s)
Matthew Carbone, Hyeong Jin Kim, Chandima Fernando, Shinjae Yoo, Daniel Olds, Howie Joress, Brian DeCost, Bruce D. Ravel, Yugang Zhang, Phillip Michael Maffettone
The challenge of optimal design of experiments pervades materials science, physics, chemistry, and biology. Bayesian optimization has been used to address this challenge but requires framing experimental campaigns through the lens of maximizing some

Soft Matter Roadmap

December 12, 2023
Author(s)
Jean-Louis Barrat, Emanuela Del Gado, Stefan Egelhaaf, Xiaoming Mao, Marjolein Dijkstra, David Pine, Sanat Kumar, Kyle Bishop, Oleg Gang, Allie Obermeyer, Christine Papadakis, Constantinos Tsitsilianis, Ivan Smalyukh, Aurelie Hourlier-Fargette, Sebastien Andrieux, Wiebke Drenckhan, Norman J. Wagner, Ryan Murphy, Eric Weeks, Yilong Han, Luca Cipelletti, Laurence Ramos, Wilson Poon, James Richards, Itai Cohen, Eric Furst, Alshakim Nelson, Stephen Craig, Rajesh Ganapathy, Ajay Sood, Francesco Sciortino, Muhittin Mungan, Srikanth Sastry, Colin Scheibner, Michel Fruchart, Vincenzo Vitelli, S. Ridout, M. Stern, I. Tah, G. Zhang, Andrea Liu, Chinedum Osuji, Yuan Xu, Heather Shewan, Jason Stokes, Matthias Merkel, Pierre Ronceray, Jean-Francois Rupprecht, Olga Matsarskaia, Frank Schreiber, Felix Rossen-Runge, Marie-Eve Aubin-Tam, G. Koenderink, Rosa Espinosa-Marzal, Joaquin Yus, Jiheon Kwon
Soft materials are usually defined as materials made of mesoscopic entities, often self-organised, sensitive to thermal fluctuations and to weak perturbations. Archetypal examples are colloids, polymers, amphiphiles, liquid crystals, foams. The importance

Experimental demonstration of a robust training method for strongly defective neuromorphic hardware

December 11, 2023
Author(s)
William Borders, Advait Madhavan, Matthew Daniels, Vasileia Georgiou, Martin Lueker-Boden, Tiffany Santos, Patrick Braganca, Mark Stiles, Jabez J. McClelland, Brian Hoskins
Neural networks are increasing in scale and sophistication, catalyzing the need for efficient hardware. An inevitability when transferring neural networks to hardware is that non-idealities impact performance. Hardware-aware training, where non-idealities

Intelligent Flexible Manufacturing Cell

December 11, 2023
Author(s)
Ethan Hollingsworth, Eric Holterman, Allison Barnard Feeney
Designed around Industry 4.0 based digital technology, flexible manufacturing cells are envisioned to comprise a variety of machines capable of peer-to-peer communication, learning, and adaptation with the end goal of creating a standards-based, brand

NIST Office of Weights and Measures (OWM) Recognition Program Handbook, 7th Edition

December 11, 2023
Author(s)
Micheal Hicks, Georgia L. Harris, Katrice Lippa, Isabel Chavez Baucom, Elizabeth Koncki
Handbook 143 provides the National Institute of Standards and Technology (NIST) Office of Weights and Measures (OWM) performance standards and formalized procedures for the voluntary recognition of State legal metrology laboratories. This 2023 edition
Displaying 1976 - 2000 of 73697
Was this page helpful?