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Search Publications

NIST Authors in Bold

Displaying 12351 - 12375 of 13225

The Black Hole Explorer: Motivation and Vision

June 13, 2024
Author(s)
Michael D. Johnson, Kazunori Akiyama, Rebecca Baturin, Bryan Bilyeu, Lindy Blackburn, Don Boroson, Alejandro Cardena-Avendano, Andrew Chael, Chi-kwan Chan, Dominic Chang, Peter Cheimets, Cathy Chou, Sheperd S. Doeleman, Joseph Farah, Peter Galison, Ronald Gamble, Charles F. Gammie, Zachary Gelles, Jose L. Gomez, Samuel E. Gralla, Paul Grimes, Shahar Hadar, Kari Haworth, Kazuhiro Hada, Michael H. Hecht, Mareki Honma, Janice Houston, Ben Hudson, Sara Issaoun, He Jia, Svetlana Jorstad, Jens Kauffmann, Yuri Kovalev, Leonid I. Gurvits, Peter Kurczynski, Robert Lafon, Alexandru Lupsasca, Robert Lehmensiek, Chung-Pei Ma, Daniel P. Marrone, Alan P. Marscher, Gary J. Melnick, Ramesh Narayan, Kotaro Niinuma, Scott C. Noble, Eric J. Palmer, Daniel C. Palumbo, Lenny Paritsky, Eliad Peretz, Dominic Pesce, Alexander Plavin, Eliot Quataert, Hannah Rana, Angelo Ricarte, Freek Roelofs, Katia Shtyrkova, Laura Sinclair, Jeffrey Small, Sridharan Tirupati Kumara, Ranjani Srinivasan, Andrew Strominger, Paul Tiede, Edward Tong, Jade Wang, Jonathan Weintroub, Maciek Wielgus, George Wong, Xinyue Alice Zhang
… (BHEX), a mission that will produce the sharpest images in the history of astronomy by extending submillimeter … bright and narrow "photon ring" that is predicted to exist in images of black holes, produced from light that has … direct measurements of a supermassive black hole's spin. In addition to studying the properties of the nearby …

2024 NIST Generative AI (GenAI): Data Creation Specification for Text-to-Text (T2T) Generators

April 1, 2024
Author(s)
Yooyoung Lee, George Awad, Asad Butt, Lukas Diduch, Kay Peterson, Seungmin Seo, Ian Soboroff, Hariharan Iyer
… evaluation will help determine strengths and weaknesses in their approaches including insights about how and when … source for mis/disinformation and trustworthy information in digital content. Lessons learned from both sides of teams … and safe use of digital content. The pilot study in 2024 GenAI evaluations will focus on text modality. The …

Heart-on-a-Chip Systems: Disease Modeling and Drug Screening Applications

February 14, 2024
Author(s)
Derrick Butler, Darwin Reyes-Hernandez
… and could revolutionize the drug development process. In this review, we highlight the key components that comprise … followed by a review of contemporary reports of their use in disease modeling, drug toxicity and efficacy assessment, … on the role of standardization is expected to play in accelerating the widespread adoption of these platforms. …

ICSSC Biennial Progress Report for 2020: Report on Progress Towards Implementation of Executive Order 13717: Establishing a Federal Earthquake Risk Management Standard - Reporting Period: February 2, 2018 to February 1, 2020

September 20, 2023
Author(s)
John Harris, Steven McCabe
… the Director of the National Institute of Standards and Technology (NIST) on their progress in implementing the order, commencing two years from the date … participate on the Interagency Committee on Seismic Safety in Construction (ICSSC). NIST, as the lead agency of the …

ICSSC Biennial Progress Report for 2022: Report on Progress Towards Implementation of Executive Order 13717: Establishing a Federal Earthquake Risk Management Standard - Reporting Period: February 2, 2020 to February 1, 2022

September 20, 2023
Author(s)
John Harris, Steven McCabe
… the Director of the National Institute of Standards and Technology (NIST) on their progress in implementing the order, commencing two years from the date … participate on the Interagency Committee on Seismic Safety in Construction (ICSSC). NIST, as the lead agency of the …

Multi-omics characterization of NIST seafood reference materials and alternative matrix preparations

September 18, 2023
Author(s)
Debra Ellisor, Amanda Bayless, William Davis, Tracey Johnston, Benjamin Trey Knott, John Seghers, Hanne Leys, Hakan Emteborg
… The National Institute of Standards and Technology (NIST) has prepared four seafood reference materials (RMs) for use in food safety and nutrition studies: wild-caught and … identifying product source and/or as quality control in untargeted omics studies. The results from experimental …

Assessing Children's Potential Exposures to Harmful Metals in Tire Crumb Rubber by Accelerated Photodegradation Weathering

August 24, 2023
Author(s)
Lee L. Yu, Li Piin Sung, YuYe Tong, Robyn Winz, Dejun Chen
… tiles for 2.2 years by accelerating the aging of the TCR in the NIST-SPHERE (National Institute of Standards and Technology - Simulated Photodegradation via High Energy … Assessing Children's Potential Exposures to Harmful Metals in Tire Crumb Rubber by Accelerated Photodegradation …

Ultra-low loss quantum photonic circuits integrated with single quantum emitters

December 12, 2022
Author(s)
Ashish Chanana, Hugo Larocque, Renan Moreira, Jacques Carolan, Biswarup Guha, Emerson Goncalves De Melo, Vikas Anant, Jin Dong Song, Dirk Englund, Daniel Blumenthal, Marcelo Davanco, Kartik Srinivasan
… integration of these technologies has remained elusive. In this work, we report a significant advance towards this goal, in the hybrid integration of a quantum emitter with a … we report the observation of resonance fluorescence in the strong drive regime, a milestone towards integrated …

Vacancy-Driven Disorder and Elevated Dielectric Response in the Pyrochlore Pb 1.5 Nbd2^O 6.5

November 21, 2022
Author(s)
Uyen Dang, Jake O'Hara, Hayden Evans, Daniel Olds, Juan Chamorro, Daniel Hickox-Young, Geneva Laurita, Robin Macaluso
… lead (Pb)-based materials. The role of Pb 2+ in polar perovskites is well understood and easily manipulated for applications in piezo- and ferroelectricity, but the control of ordered lone pair behavior in Pb-based pyrochlores is less clear. Crystallographically …

Demonstration of Superconducting Optoelectronic Single-Photon Synapses

October 6, 2022
Author(s)
Saeed Khan, Bryce Primavera, Jeff Chiles, Adam McCaughan, Sonia Buckley, Alexander Tait, Adriana Lita, John Biesecker, Anna Fox, David Olaya, Richard Mirin, Sae Woo Nam, Jeff Shainline
… and photonic devices is necessary for the scaling of this technology. In the present work, superconducting-nanowire single-photon … presynaptic signals. Synaptic weighting is implemented in the electronic domain so that binary, single-photon …

Reflectance measurements of building materials in the far UVC (222 nm) wavelength range

October 3, 2022
Author(s)
Catherine Cooksey, Holger Claus
… planned using adopted light planning software. In order to achieve reasonable accurate radiation … UV dose levels, the reflectance of the materials found in the space needs to be considered. Unfortunately, there is … were also made by the National Institute for Standards and Technology (NIST) for the purpose of validating the method. …

Extremely broadband calibrated bolometers and microbolometer arrays for Earth radiation budget measurements

September 30, 2022
Author(s)
Michelle Stephens, Chris Yung, Nathan Tomlin, Dave Harber, Cameron Straatsma, Atasi Dan, Erica Freire Antunes, Peter Pilewskie, Odele Coddington, John H. Lehman
… and cost-effective space-based measurements is driving the technology development of broadband bolometers and linear … of 7 Hz. Response times below 10 ms have been demonstrated in closed-loop operation using the electrical heater. Thin film Pt thermistors measure the change in microbolometer temperature. The deposition process of the …

Results from neutron imaging phase change experiments with LH2 and LCH4

July 2, 2022
Author(s)
Kishan Bellur, Ezequiel Medici, Daniel Hussey, David Jacobson, Jacob LaManna, Juscelino Leao, Julia Scherschligt, James Hermanson, Chang Kyoung Choi, Jeffrey Allen
… cryogenic phase change and subsequent boil-off is limited, in part, because the values of accommodation coefficients … experimental data to compute them are severely limited. In order to determine the accommodation coefficients, a new … Facility at the National Institute of Standards and Technology (NIST) by introducing propellant vapor into …

Disinfection of Respirators with Ultraviolet Radiation

March 25, 2022
Author(s)
Dianne L. Poster, Matthew Hardwick, C Cameron Miller, Michael A. Riley, W. W. Shanaka I. Rodrigo, Andras E. Vladar, John D. Wright, Christopher D. Zangmeister, Clarence Zarobila, Jeremy Starkweather, John Wynne, Jason Yilzarde
… (FFRs) by ultraviolet (UV) radiation are important in developing UV strategies for N95 FFR disinfection and … for N95 FFRs following UV-C irradiation (200 nm to 280 nm) in a commercial UV-C enclosure. Viral inactivation was … was performed by the National Personal Protective Technology Laboratory. Data from these metrological …

A Template for the Validation of DART-MS for Qualitative Seized Drugs Analysis

March 10, 2022
Author(s)
Edward Sisco, Amber Burns, Elizabeth Schneider, Laurel Bobka, Ikenna Ikpeama
… Direct analysis in real time mass spectrometry (DART-MS) is an increasingly … by laboratories is lack of available resources to aid in addressing validation, operation, training, and data … needs. To provide additional resources to assist in validation development this work provides a template that …

A Tool to Model Virus Particle Exposure in Residences (ViPER)

March 9, 2022
Author(s)
Stephen Zimmerman, Brian Polidoro, Lisa Ng, William Stuart Dols, Steven Emmerich
… Virus Particle Exposure in Residences (ViPER) is a web-based, single zone indoor air … tool developed by the National Institute of Standards and Technology (NIST) for evaluating an occupant's relative … as the home). This tool is specifically designed for use in a residential environment. When an occupant (the home's …

Dependence of Single-Wall Carbon Nanotubes Alignment on the Filter Membrane Interface in Slow Vacuum Filtration

January 22, 2022
Author(s)
Jeffrey Fagan, Angela R. Hight Walker, Adam Biacchi, Andrei Kolmakov, Zia Macdermid, William D. Rice, Joshua Walker, Thomas Searles
… The recent development of slow vacuum filtration (SVF) technology has shown great promise for reproducibly producing … (SWCNTs) from solution-based nanotube dispersions. In contrast to other SWCNT alignment methods, SVF creates … to hinder further optimization of the SVF protocol. In this work, we modify the filter membrane surface to show …

Indoor light energy harvesting for battery-powered wireless sensors using small photovoltaic modules

August 15, 2021
Author(s)
Andrew M. Shore, John Roller, Jennifer Bergeson, Behrang Hamadani
… As interest in Internet-of-Things (IoT) devices like wireless sensors … these sensors to self-harvest energy from the environment in which they are installed. Photovoltaic (PV) cells or … circuit and operated to determine its power consumption in relation to the available charging power. The mote's …

Single-cycle all-fiber frequency comb

July 8, 2021
Author(s)
Sida Xing, Daniel Lesko, Takeshi Umeki, Tsung Han Wu, Alexander Lind, Nazanin Hoghooghi, Scott Diddams
… frequency combs are important for molecular spectroscopy in a wide range of fundamental and applied research. However, realization of such light sources in a compact and robust format remains a challenge. In this … a robust all-fiber configuration, built on commercial technology, that generates frequency combs at the limit of a …

A Large Beam High Efficiency Radio Frequency Neutron Spin Flipper

June 21, 2021
Author(s)
Wangchun Chen, Ross W. Erwin, Peter Tsai, Md. T. Hassan, Nancy Hadad, Charles F. Majkrzak
… guide. This RF neutron spin flipper will be employed in a polychromatic beam reflectometer at the National Institute of Standards and Technology Center for Neutron Research. This design can be …

The use of lateral flow immunoassays for the detection of fentanyl in seized drug samples and postmortem urine

June 17, 2021
Author(s)
Daniel J. Angelini, Tracey Biggs, Amber M. Prugh, Jessica A. Smith, Jennifer A. Hanburger, Bob Llano, Raquel Avelar, Angela Ellis, Brady Lusk, Abdallah Naanaa, Edward Sisco, Jennifer W. Sekowski
… The opioid crisis has continued to progress in the United States and the rest of the world. As this … that lateral flow immunoassays (LFIs) could fill this technology gap. These qualitative paper-based assays contain … positive or negative results within a matter of minutes. In this study, two different LFI configurations for the …

LIQUID FLOW METER CALIBRATIONS WITH NIST's 15 kg/s WATER FLOW STANDARD

June 15, 2021
Author(s)
Jodie Gail Pope, Aaron Johnson, James Filla, Vern E. Bean, Michael R. Moldover, Joey Boyd, Christopher J. Crowley, Iosif Isaakovich Shinder, Keith A. Gillis, John D. Wright
… Metrology Group of the National Institute of Standards and Technology (NIST) to calibrate liquid flow meters for … the rate of change of the mass of water accumulating in a collection tank. The LFS is a fully automated system …
Displaying 12351 - 12375 of 13225
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