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Displaying 76 - 100 of 370

Reference Correlation for the Viscosity of Xenon from the Triple Point to 750 K and up to 86 MPa

March 25, 2021
Author(s)
Dania Velliadou, K.A. Tasidou, K.D. Antoniadis, Marc J. Assael, Richard A. Perkins, Marcia L. Huber
This paper presents a new wide-ranging correlation for the viscosity of xenon based on the most recent theoretical calculations and critically evaluated experimental data. The correlation is designed to be used with an existing equation of state, and it is

Atom numbers in magneto-optic traps with millimeter scale laser beams

February 22, 2013
Author(s)
Gregory W. Hoth, Elizabeth A. Donley, John E. Kitching
We measure the number of atoms, N, that can be trapped in a conventional vapor cell MOT using beams that have a diameter d in the range 1-5 mm. We show that the N \propto d 3.6 scaling law observed for larger MOTs is a robust approximation for optimized

Fluid interactions with metafilm/metasurfaces for tuning, sensing, and microwave assisted chemical processes

May 25, 2011
Author(s)
Joshua A. Gordon, Christopher L. Holloway, James C. Booth, James R. Baker-Jarvis, David R. Novotny, Sung Kim, Yu Y. Wang
In this paper we demonstrate tunability of a metafilm, which is the two-dimensional equivalent of a metamaterial, also referred to as a metasurface, by changing the permittivity in a micro-fluidic channel that interacts with the metafilm. Numerical

A Spin-1/2 Optical Lattice Clock

August 7, 2009
Author(s)
Nathan D. Lemke, Andrew D. Ludlow, Zeb Barber, Tara M. Fortier, Scott A. Diddams, Yanyi Jiang, Steven R. Jefferts, Thomas P. Heavner, Thomas E. Parker, Christopher W. Oates
We experimentally investigate an optical clock based on 171Yb (I = 1/2) atoms confined in an optical lattice. We have evaluated all known frequency shifts to the clock transition, including the density-dependent collision shift, with an uncertainty of 0.19

The Role of Filtering Higher Order Reflections in Antenna Extrapolation Measurements

September 30, 2017
Author(s)
Rob Horansky, Mohit S. Mujumdar, Dylan Williams, Kate Remley, David R. Novotny, Michael H. Francis
With more and more wireless devices being made with no test ports, and with the need to test these devices in real-world scenarios with no cable interference, over-the-air (OTA) testing has been dominating the test and manufacture industry. At NIST, we are

Assessment of a 3D-Printed Aluminum Corrugated Feed Horn at 118.7503 GHz

February 19, 2017
Author(s)
Josh Gordon, David R. Novotny, Ronald C. Wittmann, Michael H. Francis, Jeffrey R. Guerrieri, Periasamy Lavanya, Albin Gasiewski
All-metal 3D printing is investigated as a viable option for millimeter wave applications. 3D printing is finding applications across many areas and may be a useful technology for antenna fabrication. The ability to rapidly fabricate custom antenna

Anisotropic Effect of a Magnetic Field on the Neutron Spin Resonance in FeSe

April 16, 2020
Author(s)
Tong Chen, Youzhe Chen, David W. Tam, Bin Gao, Yiming Qiu, Astrid Schneidewind, Igor Radelytskyi, Karel Prokes, Songxue Chi, Masaaki Matsuda, Collin L. Broholm, Pengcheng Dai
We use inelastic neutron scattering to study the effect of a magnetic field on the neutron spin resonance (Er = 3.6 meV) of superconducting FeSe (Tc = 9 K). While a field aligned along the in-plane direction broadens and suppresses the resonance, a c-axis

Investigation of PMU Response to Leap Second: 2015

August 24, 2015
Author(s)
Allen R. Goldstein, Dhananjay Anand, YaShian Li-Baboud
… and UTC time incremented by 1 second from 35 seconds to 36 seconds. None of the PMUs responded to the leap second in …

5G Network Security Design Principles: Applying 5G Cybersecurity and Privacy Capabilities

March 19, 2026
Author(s)
Michael Bartock, Jeffrey Cichonski, Murugiah Souppaya, Karen Kent, Parisa Grayeli, Sanjeev Sharma
This white paper describes the network infrastructure design principles that commercial and private 5G network operators are encouraged to use to improve cybersecurity and privacy. Such a network infrastructure isolates types of 5G network traffic from

Applying 5G Cybersecurity and Privacy Capabilities: Introduction to the White Paper Series

March 19, 2026
Author(s)
Jeffrey Cichonski, Michael Bartock, Murugiah Souppaya, Karen Kent, Parisa Grayeli, Sanjeev Sharma, Thomas McCarthy, Muthukkumaran Ramalingam, Presanna Raman, Stefano Righi, Jitendra Patel, Bogdan Ungureanu, Tao Wan, Matt Hyatt, Kori Rongey, Dan Carroll, Steve Orrin, Corey Piggott, Simon Hwang, Gary Atkinson, Rajasekhar Bodanki, Robert Cranston, Jorge Escobar, Don McBride, Aarin Buskirk, Bryan Wenger, Todd Gibson
… NIST Cybersecurity White Papers (CSWP) - 36 …

No SUPI-Based Paging Applying 5G Cybersecurity and Privacy Capabilities

March 19, 2026
Author(s)
Michael Bartock, Jeffrey Cichonski, Murugiah Souppaya, Karen Kent, Parisa Greyeli, Sanjeev Sharma
This white paper provides an overview of "no Subscription Permanent Identifier (SUPI) based paging," a 5G capability for protecting users from being identified and located by an attacker. Unlike previous generations of cellular systems, new requirements in

Protecting Subscriber Identifiers with Subscription Concealed Identifier (SUCI) Applying 5G Cybersecurity and Privacy Capabilities

March 19, 2026
Author(s)
Michael Bartock, Jeffrey Cichonski, Murugiah Souppaya, Karen Kent, Parisa Grayeli, Sanjeev Sharma, Charles Teague
This white paper describes enabling Subscription Concealed Identifier (SUCI) protection, an optional 5G capability which provides important security and privacy protections for subscriber identifiers. 5G network operators are encouraged to enable SUCI on

Reallocation of Temporary Identities: Applying 5G Cybersecurity and Privacy Capabilities

March 19, 2026
Author(s)
Michael Bartock, Jeffrey Cichonski, Murugiah Souppaya, Karen Kent, Parisa Grayeli, Sanjeev Sharma
This white paper is part of a series called Applying 5G Cybersecurity and Privacy Capabilities, which covers 5G cybersecurity- and privacy-supporting capabilities that were implemented as part of the 5G Cybersecurity project at the National Cybersecurity

Using Hardware- Enabled Security to Ensure 5G System Platform Integrity Applying 5G Cybersecurity and Privacy Capabilities

March 19, 2026
Author(s)
Michael Bartock, Jeffrey Cichonski, Murugiah Souppaya, Karen Kent, Parisa Grayeli, Sanjeev Sharma
This white paper provides an overview of employing hardware-enabled [1] security capabilities to provision, measure, attest to, and enforce the integrity of the compute platform to foster trust in a 5G system's server infrastructure. It discusses security

Trusted Internet of Things (IoT) Device Network-Layer Onboarding and Lifecycle Management: Enhancing Internet Protocol-Based IoT Device and Network Security

November 25, 2025
Author(s)
Jeffrey Marron, Michael Fagan, Murugiah Souppaya, Paul Watrobski, Blaine Mulugeta, Susan Symington, Joshua Klosterman, Charles Rearick, Chelsea Deane, Dan Harkins, Danny Jump, Michael Richardson, Andy Dolan, Kyle Haefner, Craig Pratt, Darshak Thakore, Peter Romness, Tyler Baker, David Griego, Brecht Wyseur, Nick Allott, Alexandru Mereacre, Ashley Setter, Julien Delplancke, Steve Clark, Mike Dow, Steve Egerter, Karen Kent
… Special Publication (NIST SP) - 1800-36 …
Displaying 76 - 100 of 370
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