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Search Publications

NIST Authors in Bold

Displaying 376 - 400 of 73697

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

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

Bottom-up Gold Filling of Sub-Micrometer Wide Trenches

April 3, 2025
Author(s)
Daniel Josell, Lucia Romano, Konstantins Jefimovs
A 〖Bi〗^(3+)-stimulated Au electrodeposition process in slightly alkaline 〖Na〗_3 Au(〖SO〗_3 )_2+〖Na〗_2 〖SO〗_3 electrolytes has been previously demonstrated for void-free bottom-up filling of progressively deeper and higher aspect trenches in gratings for

Inhibition by 4-(4-Bromo-2-oxo-3H-benzimidazol-1-yl)-N-(4-iodophenyl)piperidine-1-carboxamide) (TH5487) of the Activity of Human 8-Oxoguanine DNA Glycosylase-1 (OGG1) for the Excision of 2,6-Diamino-4-hydroxy-5-formamidopyrimidine, 4,6-Diamino-5-formamido

April 3, 2025
Author(s)
Pawel Jaruga, R. Stephen Lloyd, Michael Luzadder, Istvan Boldogh, M Miral Dizdar
DNA glycosylases of the base excision repair pathway have become clinically validated drug targets for treatment of several diseases. Human OGG1 (hOGG1) is specific for the removal of the highly mutagenic 8-oxoguanine (8-oxo-Gua) and 2,6-diamino-4-hydroxy

Zeeman Split Kramers Doublets in Spin-Supersolid Candidate Na2BaCo(PO4)2

April 3, 2025
Author(s)
T. Popescu, N. Gora, F. Demmel, Z. Xu, R. Zhong, T. Williams, R. Cava, Guangyong Xu, C. Stock
Na2BaCo(PO4)2 is a triangular antiferromagnet that displays highly efficient adiabatic demagnetization cooling [Junsen Xiang et al., Nature (London) 625, 270 (2024)] near a quantum critical point at μ0Hc ∼ 1.6 T, separating a low-field magnetically

Certification of Standard Reference Material(R) 956e Electrolytes in Frozen Human Serum

April 2, 2025
Author(s)
Lee Yu, Steven Christopher, Regina Easley, Monique Johnson, Dennis Leber, Thomas Vetter, Jason Waters, Charles Barber, Karen Murphy, Laura Wood, Stephen Chin, Murli Narayan, Alexander Rhodes, Michael Nash
The National Institute of Standards and Technology (NIST) Standard Reference Material® (SRM®) 956e Electrolytes in Frozen Human Serum is intended for use in the calibration and validation of procedures and methods employed in clinical analysis for the

IMPPY3D: Image Processing in Python for 3D Image Stacks

April 2, 2025
Author(s)
Newell Moser, Alexander Landauer, Orion Kafka
Image Processing in Python for 3D image stacks, or IMPPY3D, is a free and open-source software (FOSS) repository that simplifies post-processing and 3D shape characterization for grayscale image stacks, otherwise known as volumetric images, 3D images, or

Alkali metal pyridinolate/piperidinolate pairs: A new type of materials for efficient reversible hydrogen storage

April 1, 2025
Author(s)
Alexis Munyentwali, Yang Yu, Xingchi Zhou, Wei Zhou, Qijun Pei, Khai Chen Tan, Anan Wu, Hui Wu, Teng He, Ping Chen
Chemical hydrogen storage in organic materials is a promising method thanks to its high storage density, reversibility, and safety. However, the dehydrogenation process of organic materials requires high temperatures due to their unfavorable thermodynamic

Chapter 12 - Standard reference materials for the determination of trace organic constituents in environmental samples

April 1, 2025
Author(s)
Jessica Reiner, Bruce Benner, Jennifer Lynch, Jacolin Murray, Alix Rodowa, Meredith Evans Seeley, Katherine Shaw, Benjamin Place
Standard Reference Materials (SRMs) are homogeneous, well-characterized materials that are used to validate measurements and improve the quality of analytical data. NIST, the National Institute of Standards and Technology, has a wide variety of SRMs useful

Insight into the Spin Reorientation Phase Transition in the Magnetocaloric NdNi Compound

April 1, 2025
Author(s)
Yawei Gao, Xinqi Zheng, Hui Wu, Juping Xu, He Huang, Dingsong Wang, Hao Liu, Shanshan Zhen, Yang Pan, Lei Xi, Guyue Wang, Zixiao Zhang, Guangrui Zhang, Anxu Ma, Zhe Chen, Dan Liu, Zhaojun Mo, Jiawang Xu, Wen Yin, Shouguo Wang, Baogen Shen
Exploring and comprehending magnetocaloric materials with spin reorientation (SR) phase transition is of vital importance for practical applications of magnetocaloric effect (MCE). Herein, this study presents a systematic study on the magnetic properties,

Laser Beam Metrology for AM-Bench 2022: Approaches, Results, and Lessons Learned

April 1, 2025
Author(s)
David Deisenroth, Jordan Weaver, Sergey Mekhontsev, Steven Grantham, Shawn P. Moylan
One of key parameters of additive manufacturing by laser powder bed fusion of metal parts (PBF-LB/M) is the power density distribution (PDD) of the process laser beam. This paper describes the methods used to measure the beam PDD, discussing well

MaRDA FAIR Materials Microscopy and LIMS Data Working Groups' Community Recommendations

April 1, 2025
Author(s)
Joshua Taillon, Edward Barnard, Laura Bartolo, Maria K. Y. Chan, Eric Stach, Mitra Taheri, Lynda Brinson, Peter Voorhees
The management, processing, and sharing of research data and experimental context produced on modern scientific instrumentation presents a myriad of challenges to nearly all within the materials research community. To help address these issues, MaRDA

Reversible CO2 Hydrogenation, Neutron Crystallography, and Hydride Reactivity of a Triiridium Heptahydride Complex

April 1, 2025
Author(s)
Valeriy Cherepakhin, Van K. Do, Anthony J. Chavez, Jacob Kelber, Ryan Klein, Eric Novak, Yongqiang Cheng, Xiaoping Wang, Craig Brown, Travis J. Williams
The authors report the structure, reactivity, and catalytic utility of a triiridium complex, [Ir3H6(μ3-H)(PN)3]2+ (2-H, PN = (2-pyridyl)CH2PBut2). Despite its unusual stability to unsaturated organics, electrophiles, and even CF3SO3D, they find that

Signal size and resolution of scanning thermal microscopy in air and vacuum

April 1, 2025
Author(s)
Jabez McClelland, Evgheni Strelcov, Ami Chand
We present measurements comparing scanning thermal microscopy in air and vacuum. Signal levels are compared and resolution is probed by scanning over the edge of a nanofabricated Ag square embedded in SiO2. Signals measured in air were seen to be 2.5 to 40
Displaying 376 - 400 of 73697
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