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NIST Authors in Bold

Displaying 76 - 100 of 143737

Controlling Impact Mitigation via Stimuli-Responsive Bouligand Nanostructures

May 16, 2025
Author(s)
Sujin Lee, Katherine Evans, Jeremiah Woodcock, Jan Obrzut, Liping Huang, Christopher Soles, Edwin Chan
Critical to their survival, natural organisms have developed exoskeletons that can withstand and inflict damage over their lifetime. The Bouligand structure of the exoskeleton plays a key role in toughness and damage resistance under external impacts

Multi-color solitons and frequency combs in microresonators

May 15, 2025
Author(s)
Curtis Menyuk, Pradyoth Shandilya, Logan Courtright, Gregory Moille, Kartik Srinivasan
Multi-color solitons that are parametrically created in dual-pumped microresonators generate interleaved frequency combs that be used to obtain combs at new frequencies and when synchronized can be used for low-noise microwave generation and potentially as

NIST Special Publication 260 NIST.SP.260-256 Certification of Standard Reference Material(R)s 3672a & 3673a: Organic Contaminants in Smokers' Urine (Frozen) & Organic Contaminants in Non-Smokers' Urine (Frozen)

May 14, 2025
Author(s)
Ashley Russell, Carolyn Burdette, Johanna Camara, Nathanael Heckert, Jennifer Hoguet, Kevin Huncik, Jared Ragland, Elena Wood
Standard Reference Material (SRM) 3672a Organic Contaminants in Smokers' Urine (Frozen) and SRM 3673a Organic Contaminants in Non-Smokers' Urine (Frozen) are intended for use in evaluating analytical methods for the determination of selected naturally

On-Chip Parametric Synchronization of a Cavity Soliton Microcomb

May 13, 2025
Author(s)
Gregory Moille, Pradyoth Shandilya, Miro Erkintalo, Curtis Menyuk, Kartik Srinivasan
Synchronization of oscillators is ubiquitous in nature. Often, the synchronized oscillators couple directly, yet in some cases synchronization can arise from their parametric interactions. Here, we theoretically predict and experimentally demonstrate the

Selecting longitudinal community outcomes for resilience indicator validation

May 13, 2025
Author(s)
Donghwan Gu, Maria Dillard, Michael Gerst, Jarrod Loerzel
Assessing community resilience is a long-sought goal in multiple fields of study and practice. Community resilience frameworks have been designed to estimate the level of resilience through varying sets of cross-sectional indicators. However, community

Supporting Production Consistency for Cement

May 12, 2025
Author(s)
Aron Newman, Cody Strack
Concrete is the second most used substance in the world after water. Concrete manufacturers produce 14 billion cubic meters annually, with a market size of $440 billion. The concrete industry is developing new technologies to decrease its carbon footprint

A Fully Registered In-Situ and Ex-Situ Dataset for Metal Powder Bed Fusion Additive Manufacturing: Data Processing, Feature Extraction, Registration, and Uncertainties

May 8, 2025
Author(s)
Zhuo Yang, Yan Lu, Ho Yeung, Brandon Lane, Nicole Van Handel
This document details the data registration process for the previously published datasets from Additive Manufacturing Metrology Testbed (AMMT) parts, "Overhang Part X4," generated at the National Institute of Standards and Technology. The two datasets —one

Top-Down Scoring of Spectral Fitness by Image Analysis for Protein Structure Validation

May 6, 2025
Author(s)
Benjamin Harding, Barry DeZonia, Rajat Garg, Ziling Hu, Frank Delaglio, Tim Grant, Chad Rienstra
Nuclear magnetic resonance (NMR) spectroscopy is a powerful technique for protein structure determination, but traditional approaches require extensive manual assignment of hundreds to thousands of resonances. Here we present NMRFAM-BPHON, a novel "top

Broadband Optoelectronic Mixer for Terahertz Frequency-Comb Measurements

May 5, 2025
Author(s)
Jizhao Zang, Jesse Morgan, Andreas Beling, Scott Papp
We demonstrate ultra-broadband optoelectronic mixing of frequency combs that provides phase-coherent detection of a repetition frequency up to 500 GHz, using a high-speed modified uni-traveling carrier (MUTC) photodiode. Nonlinear photo-electron effects in

China's Manufacturing Innovation Centers: A Benchmarking Report for the Manufacturing USA Network

May 5, 2025
Author(s)
Michael Molnar, Kelley Rogers, Frank Gayle, Susan Ipri-Brown, Mai Tran, Joseph Long, Clifton Ray, Albert Shih, Douglas Thomas
This review of China's Manufacturing Innovation Centers (MICs) describes the status of the country's flagship manufacturing innovation program. At least 33 MICs have been established to date, suggesting that China is within reach of its goal of 40 MICs by

NIST GenAI (Pilot): an Overview of Text-to-Text Evaluation Results

May 5, 2025
Author(s)
Yooyoung Lee, Hariharan Iyer
The 2024 NIST Generative AI (GenAI) Pilot Study focuses on evaluating text-to-text (T2T) generation and discrimination tasks to assess the capabilities and limitations of generative AI models. The study aims to measure the effectiveness of AI-generated

Certification of Standard Reference Material(R) 1989 Monodisperse Irregularly Shaped Epoxy-Based Particles (Nominal 100 mm, 150 mm, 220 mm)

May 2, 2025
Author(s)
Srivalli Telikepalli, Dean Ripple, Michael Carrier, Kristen Steffens, David Newton, Christopher Montgomery, Nicholas Ritchie, Anthony Asmar, Michael Halter
Standard Reference Material (SRM) 1989 is a NIST particle standard produced using photolithographic methods and delivers a certified value for particle size of an irregularly shaped particle. This SRM was developed to allow a more accurate monitoring of

Delicate Tuning of Reaction Thermodynamics via Formation of Bimetal Phenoxide: Synthesis, Structure, and Hydrogen Storage Performance

May 2, 2025
Author(s)
Nor I. Nordin, Khai C. Tan, Hong Wen, Xiaohua Ju, Wei Zhou, Hui Wu, Teng He, Ping Chen, Yong Chua
Arene-cycloalkane pairs are promising for hydrogen storage but often encounter unfavorable thermodynamic and kinetic issues in hydrogenation and dehydrogenation. A recent strategy to circumvent thermodynamic constraints involves introducing electron

On the chemomechanics of bubble growth in hydrogen attack of plain carbon steels

May 2, 2025
Author(s)
May Martin, Kshitij Vijayvargia, T Nguyen, Mohsen Dadfarnia, Aleksandar Staykov, Petros Sofronis, Masanobu Kubota, John Pugh
High temperature hydrogen attack (HTHA) is a form of degradation of carbon steels exposed to high temperature and high-pressure hydrogen whereby internal hydrogen reacting with carbides forms methane gas bubbles with an associated loss in strength and
Displaying 76 - 100 of 143737
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