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Search Publications

NIST Authors in Bold

Displaying 8326 - 8350 of 73727

Advanced Temperature-Control Chamber for Resistance Standards

April 10, 2020
Author(s)
Shamith Payagala, Alireza Panna, Albert Rigosi, Dean G. Jarrett
Calibration services for resistance metrology have continued to advance their capabilities and establish new and improved methods for maintaining standard resistors. Despite the high quality of these methods, there still exist inherent limitations to the

Combinatorial Rank Attacks Against the Rectangular Simple Matrix Encryption Scheme

April 10, 2020
Author(s)
Dustin Moody, Ray A. Perlner, Daniel C. Smith-Tone, Daniel C. Apon, Javier Verbel
In 2013, Tao et al. introduced the ABC Simple Matrix Scheme for Encryption, a multivariate public key encryption scheme. The scheme boasts great efficiency in encryption and decryption, though it suffers from very large public keys. It was quickly noted

Correlation-Driven Eightfold Magnetic Anisotropy in a Two-Dimensional Oxide Monolayer

April 10, 2020
Author(s)
Zhangzhang Cui, Alexander Grutter, Hua Zhou, Hui Cao, Yongqi Dong, Dustin A. Gilbert, Jingyuan Wang, Yi-Sheng Liu, Jiaji Ma, Zhenpeng Hu, Jinghua Guo, Jing Xia, Brian Kirby, Padraic Shafer, Elke Arenholz, Hanghui Chen, Xiaofang Zhai, Yalin Lu
Engineering magnetic anisotropy (MA) in two-dimensional (2D) ferromagnetic materials has enormous scientific and technological implications. The uniaxial anisotropy universally exhibited by 2D ferromagnetic materials has only two stable spin directions

Election Event Logging Common Data Format Specification

April 9, 2020
Author(s)
John P. Wack
This publication describes an election event logging common data format specification for devices used in U.S. elections such as optical scanners, election management systems, and polling place devices. The data logged generally contains information about

Measurements of Nonlinear Polarization Dynamics in the Tens of Gigahertz

April 9, 2020
Author(s)
Aaron Hagerstrom, Eric J. Marksz, Xiaohang Zhang, Xifeng Lu, Christian Long, James Booth, Ichiro Takeuchi, Nathan Orloff
Frequency-dependent linear permittivity measurements are commonplace in the literature, providing key insights into the structure of dielectric materials. These measurements describe a material's dynamic response to a small applied electric eld. In

Narrow Spectrum Software Testing Addressing Complexity and Trust

April 9, 2020
Author(s)
David R. Kuhn, Mohammad Raunak
Combination coverage based testing supplements basic structural coverage based test selection. This provides a sound test engineering method with defensible, quantitative measures of test completeness.

Parallel Device-Independent Quantum Key Distribution

April 9, 2020
Author(s)
Rahul Jain, Carl Miller, Yaoyun Shi
A prominent application of quantum cryptography is the distribution of cryptographic keys that are provably secure. Such security proofs were extended by Vazirani and Vidick (Physical Review Letters, 113, 140501, 2014) to the device-independent (DI)

Low-Energy Magnons in the Chiral Ferrimagnet Cu 2 OSeO 3 : A Coarse-Grained Approach

April 8, 2020
Author(s)
Yi Luo, G. G. Marcus, Benjamin Trump, J. Kindervater, M. B. Stone, Jose Rodriguez Rivera, Yiming Qiu, T. M. McQueen, O. Tchernyshyov, Collin L. Broholm
We report a comprehensive neutron scattering study of low energy magnetic excitations in the breathing pyrochlore helimagnetic Cu 2OSeO 3. Fully documenting the four lowest energy magnetic modes that leave the ferrimagnetic configuration of the "strong

Mass Spectral Library of Acylcarnitines Derived from Human Urine

April 8, 2020
Author(s)
Xinjian Yan, Sanford Markey, Ramesh Marupaka, Qian Dong, Brian T. Cooper, Yuri Mirokhin, William E. Wallace, Stephen Stein
We describe the creation of a mass spectral library of acylcarnitines and conjugated acylcarnitines from the LC–MS/MS analysis of six NIST urine reference materials. To recognize acylcarnitines, we conducted in-depth analyses of fragmentation patterns of

Simulation Testbed for Railway Infrastructure Security and Resilience Evaluation

April 8, 2020
Author(s)
Bradley Potteiger, Himanshu Neema, Xenofon Koutsoukos, CheeYee Tang, Keith A. Stouffer
The last decade has seen an influx of digital connectivity, operation automation, and remote sensing and control mechanisms in the railway domain. The management of the railway operations through the use of distributed sensors and controllers and with

Spatial Distribution of PEO-PPO-PEO Block copolymer and PEO Homopolymer in Lipid Bilayers

April 7, 2020
Author(s)
Mihee Kim, Frank Heinrich, Greg Haugstad, Guichuan Yu, Guangcui Yuan, Sushil K. Satija, Wenjia Zhang, Hannah S. Seo, Joseph M. Metzger, Samira M. Azarin, Timothy P Lodge, Benjamin J. Hackel, Frank S. Bates
Maintaining the integrity of cell membranes is indispensable for cellular viability. Poloxamer 188 (P188), a poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer with a number average molecular weight of 8

228Th breakthrough in 224Ra samples: what can we know and when can we know it?

April 6, 2020
Author(s)
Denis E. Bergeron, Ryan P. Fitzgerald, Leticia S. Pibida
Recent renewed interest in radium-224 (224Ra) as a radiotherapeutic agent prompted the development of a primary standard for activity at the National Institute of Standards and Technology (NIST). The 224Ra decay chain includes the emission four alpha

Comparable Enhancement of TERS signals from WeSe2 on Chromium and Gold.

April 6, 2020
Author(s)
Albert Davydov, Sergiy Krylyuk, Angela R. Hight Walker, Bojan R. Ilic, Andrey Krayev, Ashish Bhattarai, Alan G. Joly, Matej Velicky, Patrick Z. El-Khoury
Plasmonic tip-sample junctions, at which the incident and scattered optical fields are localized and optimally enhanced, are often exploited to achieve ultrasensitive and highly spatially localized tip-enhanced Raman scattering (TERS). Recent work has
Displaying 8326 - 8350 of 73727
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