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NIST Authors in Bold

Displaying 2401 - 2425 of 73697

Lower-GWP Non-Flammable Refrigerant Blends to Replace HFC-134a

August 21, 2023
Author(s)
Harrison M. Skye, Piotr A. Domanski, Mark O. McLinden, Valeri I. Babushok, Ian Bell, Tara Fortin, Michael Hegetschweiler, Marcia L. Huber, Mark A. Kedzierski, Dennis Kim, Lingnan Lin, Gregory T. Linteris, Stephanie L. Outcalt, Vance (Wm.) Payne, Richard A. Perkins, Aaron Rowane
Non-flammable, lower global-warming-potential (GWP) refrigerants are needed to replace HFC-134a (GWP=1300) in military equipment. We previously used thermodynamic cycle simulations to screen 100 000+ refrigerant blends and identified 23 candidate

Mid-Infrared, Near-Infrared, and Visible Nanospectroscopy of Hydrogen-Intercalated MoO3

August 21, 2023
Author(s)
Jeffrey Schwartz, Sergiy Krylyuk, Devon Jakob, Albert Davydov, Andrea Centrone
Control over the local chemical composition and spatial heterogeneities in nanomaterials provides a means to impart new functions and to tailor their properties in many applications. For two-dimensional (2D) van der Waals materials, intercalation is one

RECENT DEVELOPMENTS IN ONTOLOGY STANDARDS AND THEIR APPLICABILITY TO BIOMANUFACTURING

August 21, 2023
Author(s)
Milos Drobnjakovic, Boonserm Kulvatunyou, Vijay Srinivasan, Simon P. Frechette
ISO and IEC have jointly initiated, and recently issued, a series of standards (the ISO/IEC 21838 series) for top-level ontologies. These standards have been used by industrial consortia to develop and disseminate standards for mid-level ontologies to ease

Skyrmion-Excited Spin-Wave Fractal Networks

August 18, 2023
Author(s)
Nan Tang, W. L. N. C. Liyanage, Sergio A. Montoya, Sheena Patel, Lizabeth J. Quigley, Alexander Grutter, Michael R. Fitzsimmons, Sunil Sinha, Julie A. Borchers, Eric E. Fullerton, Lisa Debeer-Schmitt, Dustin A. Gilbert
Magnetic skyrmions exhibit unique, technologically relevant pseudo-particle behaviors which arise from their topological protection, including well-defined, three-dimensional breathing and gyration modes which occur at microwave frequencies. During dynamic

Fabrication of Specimens for Atom Probe Tomography using a Combined Gallium and Neon Focused Ion Beam Milling Approach

August 16, 2023
Author(s)
Frances Allen, Paul Blanchard, David Pappas, Russell Lake, Deying Xia, John Notte, Ruopeng Zhang, Andrew Minor, Norman A. Sanford
We demonstrate a new focused ion beam sample preparation method for atom probe tomography. The key aspect of the new method is that we use a neon ion beam for the final tip shaping after conventional annulus milling using gallium ions. This dual-ion

Impact of Dynamic Prices on Distribution Grid Power Quality

August 16, 2023
Author(s)
David Holmberg, Thomas Roth, Farhad Omar
Dynamic price signals may provide a way to support integration of customer distributed energy resources (DER) into the electric grid and to help manage DER flexibility to support distribution system and bulk grid needs. Use of DER flexibility includes peak

Layered Porous Molecular Crystals via Interdigitation-Directed Assembly

August 16, 2023
Author(s)
Nie Fang, Siquan Zhang, Zhenchuang Xu, Si Chen, Xu Zhang, Hui Wu, Wei Zhou, Yanchuan Zhao
Building robust porous molecular architectures with van der Waals interactions holds promise for advancements in catalysis, chemosensing, and separation techniques. In a macroscopic context, grand buildings, toy houses, and jigsaw puzzles can be

MODELLING AND REMOVING DIGITIZER NONLINEARITY FOR ACCURATE DUAL FREQUENCY COMB SPECTROSCOPY

August 15, 2023
Author(s)
Nathan Malarich, Kevin Cossel, JEAN-DANIEL DESCHENES, Fabrizio Giorgetta, Brian Washburn, Nathan Newbury, Ian Coddington, Jerome Genest
Operation of any dual-comb spectrometer requires digitization of the interference signal before further processing. Nonlinearities in the analog-to-digital conversion can alter the apparent gas concentration by multiple percent, limiting both precision and

Report from the 2022 NIST Rapid Microbial Testing Methods (RMTM) Workshop

August 15, 2023
Author(s)
Stephanie Servetas, Nancy Lin, Nadratun Chowdhury, Scott Jackson, Jason Kralj, Sheng Lin-Gibson, Melody Sanders, Tara Eskandari
Safety and quality of advanced therapies, including cellular, gene, and tissue-engineered medical products, is paramount for success of these products. Sterility assurance testing confirming the absence of microbial contamination in advanced therapy

Measuring the permittivity tensor of anisotropic DyScO3 to 110 GHz

August 14, 2023
Author(s)
Florian Bergmann, Meagan Papac, Nick Jungwirth, Bryan Bosworth, Tomasz Karpisz, Anna Osella, Lucas Enright, Eric Marksz, Angela Stelson, Chris Long, Nate Orloff
DyScO3 (DSO) is an attractive substrate on which to grow epitaxial thin films with extraordinary materials physics. However, its highly anisotropic permittivity makes some measurements exceedingly difficult: For instance, its permittivity tensor has not
Displaying 2401 - 2425 of 73697
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