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 13301 - 13325 of 73927

Towards integrated superconducting detectors on lithium niobate waveguides

August 29, 2017
Author(s)
Jan P. Hoepker, Moritz Bartnick, Evan Meyer-Scott, Frederik Thiele, Stephan Krapick, Nicola Montaut, Matteo Santandrea, Harald Herrmann, Sebastian Lengeling, Raimund Ricken, Victor Quiring, Torsten Meier, Adriana Lita, Varun Verma, Thomas Gerrits, Sae Woo Nam, Christine Silberhorn, Tim J. Bartley
Superconducting detectors are now well-established tools for low-light optics, and in particular quantum optics, boasting high-efficiency, fast response and low noise. Similarly, lithium niobate is an important platform for integrated optics given its

Understanding the Major Update to NIST SP 800-63: Digital Identity Guidelines

August 29, 2017
Author(s)
Michael E. Garcia, Paul A. Grassi, Kristina G. Rigopoulos, Larry Feldman, Gregory A. Witte
This bulletin outlines the updates NIST recently made in its four-volume Special Publication (SP) 800-63, Digital Identity Guidelines, which provide agencies with technical guidelines regarding the digital authentication of users to federal networked

Effects of Powder Oxidation on Impact Toughness of Electron Beam Melt Ti-6Al-4V

August 25, 2017
Author(s)
Edward J. Garboczi, Enrico Lucon, William Grell, Z Loftus, Maciej Kumosa, E Solis-Ramos, Paul Predecki, E Clark
Powder quality in additive manufacturing (AM) electron beam melt (EBM) of Ti-6Al-4V components is crucial in determining the critical material properties of the end item. In this study, we report on the effect of powder oxidation on Charpy impact energy of

Pattern selection in ternary mushy layers

August 25, 2017
Author(s)
Daniel M. Anderson
We consider finite-amplitude convection in a mushy layer during the primary solidification of a ternary alloy. A previous linear theory identified, for the case of vanishing latent heat, solute rejection and background solidification, a direct mode of

An Analytical Solubility Model for Nitrogen-Methane-Ethane Ternary Mixtures

August 24, 2017
Author(s)
Jason Hartwig, Peter Meyerhofer, Ralph Lorenz, Eric Lemmon
Saturn's moon Titan has surface seas of liquid hydrocarbons and a thick, cold, nitrogen atmosphere, and is a target for future exploration. Critical to the design and operation of vehicles for this environment is knowledge of the amount of dissolved

SI Measurement System Chart

August 24, 2017
Author(s)
Elizabeth J. Benham
This publication is a colorful chart explaining the 7 base units of the SI (International System of Units) and prefix symbols, featuring the Measurement League: Guardians of the SI. The Measurement League are superheroes dedicated to the fight against

Broadband, high-resolution investigation of advanced absorption lineshapes at high temperature

August 23, 2017
Author(s)
Ian R. Coddington, William C. Swann, Nathan R. Newbury, Paul J. Schroeder, Matthew J. Cich, Jinyu Yang, Brian J. Drouin, Gregory B. Rieker
Spectroscopic studies of planetary atmospheres and high-temperature processes (e.g. combustion) require absorption lineshape models that are accurate over extended temperature ranges. To date, advanced lineshapes, like the speed-dependent Voigt and Rautian

Formation of the Ni3Nb delta-phase in stress-relieved Inconel 625 produced via powder-bed laser fusion additive manufacturing

August 23, 2017
Author(s)
Eric Lass, Mark R. Stoudt, Maureen E. Williams, Michael B. Katz, Thien Q. Phan, Lyle E. Levine, Thomas H. Gnaeupel-Herold
The microstructural evolution of laser powder-bed additively manufactured Inconel 625 during a post-build stress-relief anneal of 1 h at 870 °C is investigated. It is found that this industry-recommended heat treatment promotes the formation of a

MediFor Nimble Challenge Evaluation 2017

August 23, 2017
Author(s)
Jonathan G. Fiscus, Haiying Guan, Yooyoung Lee, Amy Yates, Andrew Delgado, Daniel F. Zhou, David M. Joy, August L. Pereira
NIST presentation slides for DARPA MediFor Program One-Year PI Meeting

Lipid Nanodomains Change Ion Channel Function

August 22, 2017
Author(s)
Michael NMN Weinrich, David Worcester, Sergey M. Bezrukov
Signaling proteins and neurotransmitter receptors associate with cholesterol-rich fractions of cell membranes--lipid rafts. The different lipid environment in rafts can modulate protein function, but evidence for modulation of ion channels is lacking. Here

Modelling and Influencing Human Behaviour in Fire

August 22, 2017
Author(s)
Steve Gwynne, Erica D. Kuligowski, Michael Kinsey, Lynn Hulse
The purpose of this article is to present a conceptual model of human behaviour in fire and its impact on evacuation modelling, life safety analyses, and evacuation procedures. This model is based on a theoretical framework of individual decision-making
Displaying 13301 - 13325 of 73927
Was this page helpful?