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Search Publications

NIST Authors in Bold

Displaying 4776 - 4800 of 73697

Nu Tools: Exploring Practical Roles for Neutrinos in Nuclear Energy and Security

December 21, 2021
Author(s)
Hans Pieter Mumm, Tomi Akindele, Nathaniel Bowden, Rachel Carr, Andrew Conant, Milind Diwan, Anna Erickson, Michael Foxe, Bethany Goldblum, Patrick Huber, Igor Jovanovic, Jonathan Link, Bryce Littlejohn, Jason Newby
For decades, physicists have used neutrinos from nuclear reactors to advance basic science. These pursuits have inspired many ideas for application of neutrino detectors in nuclear energy and security. While developments in neutrino detectors are now

A Robust Algorithm for PAM4 Eye-Diagram Analysis

December 20, 2021
Author(s)
Jeffrey Jargon, Jerome Cheron
We propose a new approach for analyzing PAM4 (pulse amplitude modulation 4-level) eye diagrams that always provides a unique solution by making use of a K-Means algorithm in conjunction with a robust, shortest interval location estimator. Our motivation

Admission Control and Scheduling of Isochronous Traffic in IEEE 802.11ad MAC

December 20, 2021
Author(s)
Anirudha Sahoo, Weichao Gao, Tanguy Ropitault, Nada T. Golmie
An upsurge of bandwidth hungry applications such as virtual reality, augmented reality and availability of unlicensed spectrum in the mmWave band at 60 GHz have led to standardization of the next generation WiFi such as IEEE 802.11ad and 802.11ay. Due to

Excipient Innovation Through Precompetitive Research

December 20, 2021
Author(s)
Bruce Yu, Marc Taraban, Katharine Briggs, Robert Brinson, John Marino
The mRNA COVID-19 vaccines developed by Pfizer/BioNTech and Moderna represent a triumph of vaccine development. The core mRNA component of these vaccines is now almost a household name. Unbeknownst to most people, however, is that each of the two mRNA

Instrumented Charpy Tests at 77 K on 316L Stainless Steel Welded Plates

December 20, 2021
Author(s)
Enrico Lucon, Jake Benzing
In the framework of a collaborative project between ASME, NASA, and NIST, instrumented Charpy tests have been performed at liquid nitrogen temperature (77 K, or 196 °C) on specimens extracted from the center of four 316L welded stainless steel plates, each

Spin Dynamics in the Skyrmion-Host Lacunar Spinel GaV 4 S 8

December 20, 2021
Author(s)
G. Pokharel, H. Arachchige, S. Gao, S.-H. Do, R. Fishman, G. Ehlers, Yiming Qiu, Jose Rodriguez Rivera, M. B. Stone, H. Zhang, Stephen Wilson, D. Mandrus, A. Christianson
In the lacunar spinel GaV 4S 8, the interplay of spin, charge, and orbital degrees of freedom produces a rich phase diagram that includes an unusual Neel-type skyrmion phase composed of molecular spins. To provide ´ insight into the interactions underlying

Sub-picoliter Traceability of Microdroplet Gravimetry and Microscopy

December 20, 2021
Author(s)
Lindsay C. C. Elliott, Adam L. Pintar, Craig R. Copeland, Thomas Brian Renegar, Ronald G. Dixson, Robert Ilic, R. Michael Verkouteren, Samuel M. Stavis
Volumetric analysis of single microdroplets is difficult to perform by ensemble gravimetry, whereas optical microscopy is often inaccurate beyond the resolution limit. To address the latter issue, we advance and integrate these complementary methods

Spectroscopic analysis of M- and N-intrashell transitions in Co-like to Na-like Yb ions

December 19, 2021
Author(s)
Yuri Ralchenko, Dipti Goyal, Roshani Silwal, Endre Takacs, Joan Dreiling, Samuel Sanders, Amy Gall, Hemalatha Rudramadevi, John Gillaspy
The M-intrashell spectra from Co-like Yb$^43+}$ through Na-like Yb$^59+}$ ions produced in an electron beam ion trap (EBIT) at the National Institute of Standards and Technology have been studied in the extreme ultraviolet (EUV) range. A few N-intrashell

Inhibition by Tetrahydroquinoline Sulfonamide Derivatives of the Activity of Human 8-Oxoguanine DNA Glycosylase (OGG1) for Several Products of Oxidatively-induced DNA Base Lesions

December 17, 2021
Author(s)
Miral M. Dizdar, Melis Kant, Pawel Jaruga, Erdem Coskun, Yu-Ki Tahara, R. S. Lloyd, Eric T. Kool
DNA glycosylases involved in the first step of the base excision repair pathway of DNA repair are promising targets in cancer therapy. There is evidence that reduction of their activities may enhance cell killing in malignant tumors. Recently, two

Seabird Tissue Archival and Monitoring Project (STAMP) Data from 1999-2010

December 17, 2021
Author(s)
Nathan Mahynski, Jared Ragland, Stacy Schuur, Rebecca Pugh, Vincent K. Shen
The multi-entity, long-term Seabird Tissue Archival and Monitoring Project (STAMP) has collected eggs from various avian species throughout the North Pacific Ocean for over 20 years to create a geospatial and temporal record of environmental conditions

Updates to the traceability of mm-wave power measurements at NIST

December 17, 2021
Author(s)
Aaron Hagerstrom, Angela Stelson, Jeffrey Jargon, Chris Long
Metrological traceability helps ensure the reliability of measurements by allowing them to be compared with established international standards with well-understood uncertainties. A thorough uncertainty analysis is therefore necessary to provide traceable

Elucidating the local atomic and electronic structure of amorphous oxidized superconducting niobium films

December 16, 2021
Author(s)
Thomas Harrelson, Evan Sheridan, Ellis Kennedy, John Vinson, Alpha N'Diaye, M. Altoe, Alex Weber-Bargioni, Adam Schwartzberg, Irfan Siddiqi, D. Ogletree, Mary Scott, Sinead Griffin
Qubits made from superconducting materials are a mature platform for quantum information science application such as quantum computing. However, materials-based losses are now a limiting factor in reaching the coherence times needed for applications. In

Identifying Tactics of Advanced Persistent Threats with Limited Attack Traces

December 16, 2021
Author(s)
Khandakar Ashrafi Akbar, Yigong Wang, Md Islam, Anoop Singhal, Latifur Khan, Bhavani Thuraisingham1
The cyberworld being threatened by continuous imposters needs the development of intelligent methods for identifying threats while keeping in mind all the constraints that can be encountered. Advanced persistent threats (APT) have become an emerging issue

Orientation of Thin Polyamide Layer-by-Layer Films on Non-Porous Substrates

December 16, 2021
Author(s)
Tawanda J. Zimudzi, Sarah E. Sheffield, Kathleen E. Feldman, Peter Beaucage, Dean DeLongchamp, Douglas I. Kushner, Christopher Stafford, Michael A. Hickner
The orientation of polyamide thin films on non-porous substrates was investigated using Fourier transform infrared (FTIR) spectroscopy and corroborated by near edge X-ray absorption fine structure (NEXAFS) measurements. Polyamide films comprised of m

Procedural Guide for System-Level Impact Evaluation of Industrial Artificial Intelligence-Driven Technologies: Application to Risk-Based Investment Analysis for Condition Monitoring Systems in Manufacturing

December 16, 2021
Author(s)
Michael Sharp, Mehdi Dadfarnia, Timothy A. Sprock, Douglas Thomas
Industrial artificial intelligence (IAI) and other analysis tools with obfuscated internal processes are growing in capability and ubiquity within industrial settings. Decision-makers share their concern regarding the objective evaluation of such tools and

The causal relationship between melt pool geometry and energy absorption measured in real time during laser-based manufacturing

December 16, 2021
Author(s)
Brian Simonds, Jack R. Tanner, Aly Artusio-Glimpse, Paul A. Williams, Niranjan Parab, Cang Zhao, Tao Sun
During laser powder bed fusion additive manufacturing, a protean pool of molten metal governs a complex energy absorption process as it presents as either a highly reflective surface, a deeply absorbing cavity (a keyhole), or some amalgamation thereof. To
Displaying 4776 - 4800 of 73697
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