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 426 - 450 of 73779

Guia Breve sobre la Incertidumbre de Medicion

April 14, 2025
Author(s)
Antonio Possolo, Maria Victoria Gelabert, David Hibbert, Jurgen Stohner, Olha Bodnar, Juris Meija
Esta Guía Breve reintroduce a los lectores en los principales conceptos y herramientas técnicas utilizadas para la evaluación y expresión de la incertidumbre de medición, incluyendo métodos estadísticos clásicos y bayesianos. El enfoque general es el mismo

Efficient Energy Transfer and Photoluminescence Enhancement in 2D MoS2/bulk InSe van der Waals Heterostructures

April 13, 2025
Author(s)
Michael Altvater, Christopher Stevens, Nicholas Pike, Joshua Hendrickson, Rahul Rao, Sergiy Krylyuk, Albert Davydov, Deep Jariwala, Ruth Patcher, Michael Snure, Nicholas Glavin
Heterostructures between 2D and 3D electron systems remain critically important in developing novel and efficient optoelectronic and electronic devices. In this study, a vertical heterojunction between monolayer MoS2 and bulk InSe was developed. This

Analytical Ultracentrifugation Characterization of Differential Sedimentation Size-Separated Graphene Dispersions

April 11, 2025
Author(s)
Christopher Sims, Elisabeth Mansfield, Jason Killgore, Jeffrey Fagan, Mark Hersam, Ana Moraes, Julia Downing
Analytical ultracentrifugation (AUC) is applied to the characterization of as-dispersed graphene nanoplatelet dispersions and differential sedimentation separated daughter dispersions. The liquid-phase characterization of AUC is demonstrated to resolve

Recommended Nomenclature Convention for the NISTCHO Cell Line and Its Product Monoclonal Antibody, cNISTmAb.

April 11, 2025
Author(s)
Megan Cleveland, Ioannis Karageorgos, John Marino, Michael Tarlov, Katharina Yandrofski, Rebecca Zangmeister, Zvi Kelman
A Chinese hamster ovary (CHO) cell line expressing the same amino acid sequences of the heavy and light chains of the NIST monoclonal antibody, NISTmAb Reference Material 8671, was generated by MilliporeSigma to be developed by NIST as a reference material

Requirements for Cryptographic Accordions

April 11, 2025
Author(s)
Yu Long Chen, Michael Davidson, Morris Dworkin, John Kelsey, Yu Sasaki, Meltem Sonmez Turan, Alyssa Thompson, Nicky Mouha, Donghoon Chang
This report introduces the cryptographic accordion as a tweakable, variable-input-length strong pseudorandom permutation (VIL-SPRP) that is constructed from an underlying block cipher. An accordion facilitates the cryptographic processing of messages of

Tuning the Surface Electronic Landscape of Ultrathin (Al,Sn)Ox Electron Extraction Layers in Perovskite Solar Cells

April 10, 2025
Author(s)
Joshua Sraku Adu, Alice Sheppard, Raphael Agbenyeke, George Kwesi "Asare ", Behrang Hamadani, David Fermin, Helen Hejin Park
Power conversion losses at the electron transport layer (ETL) are key limiting factors in high-performance perovskite solar cells (PSC) and silicon-PSC tandem systems. Solution-processed nanoparticle tin dioxide (np-SnO2) films typically serve as ETLs in n

Application of Voltage Controlled Crystal Oscillators to DC Voltage Reference Validation

April 8, 2025
Author(s)
Matthew Spidell, Malcolm White, Alan Jaffe, John Lehman, Gaylon Partain
DC voltage references are typically based on calibrated Zener Diodes which are subject to drift and therefore require periodic recalibration against a Primary Standard. Since it is preferable to maintain constant power to such references, the shipping and

Manipulation of meniscus rise for in situ multiphase nuclear magnetic resonance spectroscopy

April 8, 2025
Author(s)
Veruska Malave, Newell Moser, Edward Garboczi, Mark McLinden, Jason Widegren, Christopher Suiter
Our earlier work demonstrated that nuclear magnetic resonance (NMR) spectroscopy is a viable technique for in situ analysis of vapor–liquid equilibria (VLE) of fluid mixtures and that inserting a capillary into the NMR sample tube allows the simultaneous

Gauging error of pose acquired by vision systems in bin picking applications

April 7, 2025
Author(s)
Marek Franaszek, Prem Rachakonda, Kamel Saidi
Picking a part from an unorganized pile of parts requires an accurate vision system integrated with a robotic arm. A proper metric for gauging pose error is therefore indispensable. Pose error is a combination of an error in the position vector and an

NIST Time and Frequency Bulletin

April 7, 2025
Author(s)
Kelsey Rodriguez
The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services.

Workshop Summary Report for ConnectCon 2024: "Minding the Gaps in Human-Centered Cybersecurity"

April 7, 2025
Author(s)
Julie Haney, Matthew Canham, Mike Elkins, Lisa Flynn, Matthew Gordin, Victoria Granova, Wenjing Huang, Jody Jacobs, Greg Moody, Ann Rangarajan, Michael Ross, Robert Thomson, Joe Uchill
In August 2024, the National Institute of Standards and Technology (NIST) co-sponsored ConnectCon, an interactive workshop that facilitated meaningful conversations and connections between researchers and practitioners on the topic of human-centered

Field test of ATSC 3.0/BPS precise time distribution

April 5, 2025
Author(s)
Jeffrey Sherman, David Howe
The Broadcaster Positioning System (BPS) is a protocol for high-resolution time transfer between a reference clock at a ATSC 3.0 transmitter and a BPS receiver's disciplined-clock output. Time transfer is a prerequisite for (and useful by-product of)

Pyrrhotite Reference Material Synthesis

April 4, 2025
Author(s)
Michael Mengason, Stephanie Watson
The mineral pyrrhotite was synthesized from iron and sulfur starting materials for one component in a four-component reference material (RM 8154-Pyrrhotite in Concrete) to be used to evaluate the presence of sulfur in aggregate (crushed rock) and concrete

Acceleration-based spindle monitoring based on geometric error motions

April 3, 2025
Author(s)
Aaron Cornelius, Gregory Vogl, Ryan Hall, Yongzhi Qu
The development of intelligent machine tools requires integrating sensors that allow the machine to monitor, diagnose, and control the machining process. However, existing sensors for monitoring tool vibrations are intrusive and difficult to integrate in a
Displaying 426 - 450 of 73779
Was this page helpful?