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Search Publications

NIST Authors in Bold

Displaying 2376 - 2400 of 73893

Dynamic Range by Design in OTA EVM measurements

October 17, 2023
Author(s)
Paritosh Manurkar, Dan Kuester, Joshua Kast, Rob Horansky
We present an experimental approach to design an over-the-air (OTA) millimeter-wave measurement of error vector magnitude (EVM) and associated uncertainties that include correlations and nonlinearities. Our approach uses a waveguide-variable attenuator at

New Equation of State Constraints in the Critical Region

October 17, 2023
Author(s)
Ian Bell, Eric W. Lemmon
In this work, two classes of defects with multiparameter equations of state are investigated. In the first, it is shown that the critical point provided by equation of state developers often does not exactly meet the criticality conditions based on the

Cybersecurity Framework Profile for Electric Vehicle Extreme Fast Charging Infrastructure

October 16, 2023
Author(s)
Nakia R. Grayson, Jim McCarthy, Joseph Brule, alan Dinerman, John Dombrowski, Michael Thompson, Hillary Tran, Anne Townsend
This document is the Cybersecurity Framework Profile (Profile) developed for the Electric Vehicle Extreme Fast Charging (EV/XFC) ecosystem and the subsidiary functions that support each of the four domains: (i) Electric Vehicles (EV); (ii) Extreme Fast

Investigating Multi-Tier and QoS-Aware Caching Based on ARC

October 16, 2023
Author(s)
Lydia Ait Oucheggou, Abdella Battou, Jalil Boukhobza, Stephane Rubini
Memory caching is a common practice to reduce application latencies by buffering relevant data in high speed memory. When the volume of data to cache is too large or a DRAM-based solution too expensive, several technologies such as NVM or high speed SSDs

Next-Generation Chip-Scale Atomic Clocks

October 16, 2023
Author(s)
John Kitching, Matthew Hummon, William McGehee, Ying-Ju Wang, Susan Schima
We describe work toward the development of next-generation chip-scale atomic clocks, which combine small size, low power consumption and manufacturability with high frequency stability. The use of optical transitions in microfabricated vapor cells improves

What is missing in autonomous discovery: Open challenges for the community

October 16, 2023
Author(s)
Philip Maffetone, Howie Joress, Shijing Sun
Self-driving labs (SDLs) leverage combinations of artificial intelligence, automation, and advanced computing to accelerate scientific discovery. The promise of this field has given rise to a rich community of passionate scientists, engineers, and social

Why is EXAFS for complex concentrated alloys so hard? Challenges and opportunities for measuring ordering with X-ray absorption spectroscopy

October 16, 2023
Author(s)
Howie Joress, Bruce D. Ravel, Elaf Anber, Jonathan Hollenbach, Debashish Sur, Mitra Taheri, Brian DeCost
Short-range order (SRO) is a critical driver of properties (e.g., corrosion resistance and tensile strength) in multicomponent alloys such as complex concentrated alloys (CCAs). Extended X-ray absorption fine structure (EXAFS) is a powerful technique well

In situ Probing of Interfacial Roughness and Transient Phases During Ceramic Cold Sintering Process

October 15, 2023
Author(s)
Fan Zhang, Russell Maier, Igor Levin, Andrew J. Allen, Jun-Sang Park, Peter Kenesei, Ivan Kuzmenko, Jan Ilavsky, Pete Jemian
The ceramic cold sintering process (CSP) offers an eco-friendly approach to producing fully dense ceramics at low temperatures. However, an incomplete mechanistic understanding hinders its optimization and widespread adoption. In this study, we analyze the

The persistence of smoke VOCs indoors: partitioning, surface cleaning, and air cleaning in a smoke-contaminated house

October 13, 2023
Author(s)
Jienan Li, Michael F. Link, Shubhrangshu Pandit, Marc Webb, Cholaphan Deeleepojananan, Kathryn Mayer, Lauren Garofalo, Katelyn Rediger, Dustin Poppendieck, Stephen Zimmerman, Marina Vance, Vicki Grassian, Glenn Morrison, Barbara Turpin, Delphine Farmer
Wildfires are increasing in frequency, raising concerns that smoke can permeate indoor environments and expose people to chemical air contaminants. To study smoke transformations in indoor environments and evaluate mitigation strategies, we added smoke to

Vulnerability Test Suite Generator (VTSG) Version 3

October 13, 2023
Author(s)
Paul E. Black, William Mentzer, Elizabeth Fong, Bertrand Stivalet
The Vulnerability Test Suite Generator (VTSG) Version 3 can create vast numbers of synthetic programs with and without specific flaws or vulnerabilities. Such programs are useful for measuring static analysis tools. VTSG was designed by the Software

Adaptive Pore Opening to Form Tailored Adsorption Sites in a Cooperatively Flexible Framework Enables Record Inverse Propane/Propylene Separation

October 11, 2023
Author(s)
Ryan Klein, Lukas Bingel, Arijit Halder, Marcus Carter, Benjamin Trump, Eric Bloch, Wei Zhou, Krista Walton, Craig Brown, C. McGuirk
A proposed low-energy alternative to the separation of alkanes from alkenes by energy-intensive cryogenic distillation is separation by porous adsorbents. Unfortunately, most adsorbents preferentially take up the desired, high-value major component alkene

Quantum Plexcitonic Sensing

October 11, 2023
Author(s)
Peng Zheng, Stephen Semancik, Ishan Barman
Quantum sensing is poised to deliver unparalleled performance compared to its classical counterpart. While fundamental to quantum sensing, quantum state control has been traditionally limited to extreme conditions, such as a high vacuum or an ultra-stable

A thermodynamic analysis of CLC transporter dimerization in lipid bilayers

October 10, 2023
Author(s)
Rahul Chadda, Taeho Lee, Robyn Mahoney-Kruszka, Elizabeth Kelley, Nathan Bernhardt, Priyanka Sandal, Janice Robertson
The CLC-ec1 chloride/proton antiporter is a membrane-embedded homodimer with subunits that can dissociate and associate, but the thermodynamic driving forces favor the assembled dimer at biological densities. Yet, the physical reasons for this stability

Cybersecurity Framework Profile for Liquefied Natural Gas

October 10, 2023
Author(s)
Bill Newhouse, Josephine Long, David Weitzel, Jason Warren, Michael Thompson, Chris Yates, Hillary Tran, Alicia Mink, Aurora Herriott, Tom Cottle
This document is the Cybersecurity Framework Profile developed for the Liquefied Natural Gas (LNG) industry and the subsidiary functions that support the overarching liquefaction process, transport, and distribution of LNG. The LNG Cybersecurity Framework

Mechanical Ventilation in a Residential Building Brings Outdoor NOx Indoors with Limited Implications for VOC Oxidation from NO3 Radicals

October 10, 2023
Author(s)
Michael F. Link, Jienan Li, Jenna Ditto, Han Huynh, Jie Yu, Stephen Zimmerman, Andrew Shore, Katelyn Rediger, Jonathan Abbatt, Lauren Garofalo, Delphine Farmer, Dustin Poppendieck
Energy-efficient residential building standards require the use of mechanical ventilation systems that replace indoor air with air from the outdoors. Transient outdoor pollution events can be transported indoors via the mechanical ventilation system, and
Displaying 2376 - 2400 of 73893
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