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NIST Authors in Bold

Displaying 4501 - 4525 of 13217

Fundamental Physics with a State-of-the-Art Optical Clock in Space

July 21, 2022
Author(s)
Andrei Derevianko, Kurt Gibble, Leo Hollberg, Nathan R. Newbury, Chris Oates, Marianna Safranova, Laura Sinclair
… Recent advances in optical atomic clocks and optical time transfer have enabled new possibilities in precision metrology for both tests of fundamental physics … that would place a state-of-the-art optical atomic clock in an eccentric orbit around Earth. A high stability laser …

Why Indoor Chemistry Matters: A National Academies Consensus Report

July 14, 2022
Author(s)
Rima Habre, Megan Harris, David Dorman, Jonathan Abbatt, William Bahnfleth, Ellison Carter, Delphine Farmer, Gillian Gawne-Mittelstaedt, Allen Goldstein, Vicki Grassian, Glenn Morrison, Jordan Peccia, Kimberly Prather, Dustin Poppendieck, Manabu Shiraiwa, Heather Stapleton, Meredith Williams
… Environmental Science & Technology …

Spectrophotometric Measurement of Carbonate Ion in Seawater over a Decade: Dealing with Inconsistencies

June 7, 2022
Author(s)
Elisa Guallart, Noelia Fajar, Maribel Garcia-Ibanez, Monica Castano-Carrera, Rocio Santiago-Domenech, Abed El Rahman Hassoun, Fiz Perez, Regina Easley, Marta Alvarez
… methodology for carbonate ion determination in seawater was first published in 2008 and has been continuously evolving in terms of reagents and formulation. Although the method … Environmental Science and Technology … Spectrophotometric Measurement of Carbonate Ion in Seawater over a Decade: Dealing with Inconsistencies …

Improving quantum state detection with adaptive sequential observations

May 13, 2022
Author(s)
Emanuel Knill, Scott Glancy, Daniel Cole, Shawn Geller
… state detection advantage by using the temporal structure in a model such as a Hidden Markov Model. We initiate the … on a prototypical ion example, where we see improvements in some regimes. We make available a software package that … Quantum Science and Technology …

Thermal release tape-assisted semiconductor membrane transfer process for hybrid photonic devices embedding quantum emitters

April 19, 2022
Author(s)
Cori Haws, Biswarup Guha, Edgar Perez, Marcelo Davanco, Jin Dong Song, Kartik Srinivasan, Luca Sapienza
… that cannot be found or exploited within a single system. In the realm of quantum and nanophotonics, for instance, one … efficient classical and quantum light emission available in III-V semiconductors, low-loss light propagation accessible in silicon-based materials, fast electro-optical properties …

Impact of disaster research on the development of early career researchers: Lessons learned from the wastewater monitoring community pandemic response

April 7, 2022
Author(s)
Jeseth Delgado Vela, Jill McClary-Gutierrez, Mitham Al-faliti, Peter Arts, Robert Barbero, Cristalyne Bell, Mira Chaplin, Nishita D'Souza, Janet Baffoe, Kevin Bakker, Devrim Kaya, Raul Gonzalez, Kate Harrison, Sherin Kannoly, Ishi Keenum, Lin Li, Zachary Marsh, Brian Pecson, Sarah Philo, Hema P. Ravindran, Jatuwat Sangsanont, Rebecca Schneider, Melissa Schussman, Emily Segelhurst, Abhilasha Shrestha, Lauren Stadler, Allan Vajra, Krista R. Wigginton, Alexandria Boehm, Rolf Halden, Kyle Bibby
… Environmental Science and Technology …

The Irradiance Instrument Subsystem (IRIS) on the Airborne-Lunar Spectral Irradiance (Air-LUSI) Instrument

March 23, 2022
Author(s)
Steven Grantham, Thomas C. Larason, Clarence Zarobila, Stephen Maxwell, John Woodward, Kevin Turpie, S. Andrew Gadsden
… SI-traceable measurements of the lunar spectral irradiance in the visible to near-infrared (VNIR) region from an … lunar irradiance data sets to constrain the uncertainties in models of lunar irradiance and reflectance. The … Measurement Science and Technology …

ZKASP: ZKP-based Attestation of Software Possession for Measuring Instruments

March 9, 2022
Author(s)
Luis Brandao, Carlos Eduardo Cardoso Galhardo, Rene Peralta
… Software-controlled measuring instruments used in commercial transactions, such as fuel dispensers and smart … adulteration. We describe how this issue can be addressed in legal metrology systems by using zero-knowledge proofs of … Measurement Science and Technology …

Simultaneous Measurement of Polymerization Stress and Curing Kinetics for Photo-polymerized Composites with High Filler Contents

January 28, 2022
Author(s)
Zhengzhi Wang, Forrest A. Landis, Anthony A. Giuseppetti, Sheng Lin-Gibson, Martin Chiang
… Objectives. Photopolymerized composites are used in a broad range of applications with their performance … a fast near infrared (NIR) spectrometer collecting spectra in transmission mode. Results. Using our instrument design, … composite with ≈80% (by mass) silica particle fillers. The in situ NIR spectrometer collects more than 10 spectra per …

Disposition of Fluorine on New Firefighter Turnout Gear: Implications for Occupational Exposure

December 27, 2021
Author(s)
Derek Muensterman, Ivan Titaley, Graham Peaslee, Leah Minc, Liliana Cahuas, Alix Rodowa, Yuki Horiuchi, Shogo Yamane, Thierry Fouquet, John Kissel, Courtney Carignan, Jennifer Field
… Per-and polyfluoroalkyl substances (PFASs) are observed in firefighter serum, and possible occupational sources … well understood. Three unused turnout garments purchased in 2019 and one purchased in 2008, were analyzed for 50 nonvolatile and 15 volatile … Environmental Science & Technology …

Characterization of Halogenated Organic Compounds in Pelagic Sharks and Sea Turtles Using a Nontargeted Approach

December 1, 2021
Author(s)
Aikebaier Renaguli, Sujan Fernando, Thomas Holsen, Philip Hopke, Douglas Adams, George Balazs, T Jones, Thierry Work, Jennifer Lynch, Bernard Crimmins
… Halogenated organic compounds (HOCs) in marine species collected from the Atlantic Ocean [3 … were the most abundant compound class identified in sea turtle livers, while polychlorinated biphenyls (PCBs) were the most abundant in shark livers. In addition to legacy contaminants and …

Cryogenic single-port calibration for superconducting microwave resonator measurements

June 28, 2021
Author(s)
Haozhi Wang, Suren Singh, Corey Rae McRae, Joseph C. Bardin, S.-X. Lin, A. R. Castelli, Y. J. Rosen, David P. Pappas, J. Y. Mutus
… i.e. reflection-mode. However, impedance mismatches in cryogenic systems must be accounted for through … of the measurement chain while it is at low temperatures. In this paper, we demonstrate a data-based, single-port … network analyzer with samples at millikelvin temperature in a dilution refrigerator, making this method useful for …

Environmental Source Tracking of Per- and Polyfluoroalkyl Substances within a Forensic Context: Current and Future Techniques

May 13, 2021
Author(s)
Alix Rodowa, Joseph A. Charbonnet, Jennifer L. Guelfo, Jennifer A. Field, Gerrad D. Jones, Christopher P. Higgins, Damian E. Helbling, Erika F. Houtz
… of multiple sources contributing to PFAS contamination in the environment. PFAS source tracking should employ … will enhance currently available analytical capabilities. In addition, multivariate statistical tools, including … mass spectrometry tools enable greater confidence in the conclusions of environmental source tracking, sources …

Comparison of electrostatic and photon pressure force references at the nanonewton level

May 3, 2021
Author(s)
Gordon Shaw, John A. Kramar, Paul Williams, Matthew Spidell, Richard Mirin, Julian Stirling
… photon pressure force from calibrated laser optical power in the 1 watt range. The NIST Electrostatic Force Balance (EFB) is used to measure photon pressure force in the 10 nanonewton range from the reflection of a laser … Measurement Science & Technology …

Comparative study of multiwall carbon nanotube nanocomposites by Raman, SEM, and XPS measurement techniques

March 3, 2021
Author(s)
Yanmei Piao, Vipin Tondare, Chelsea S. Davis, Justin Gorham, Elijah Petersen, Jeffrey W. Gilman, Keana Scott, Andras Vladar, Angela R. Hight Walker
… to develop robust methods to detect and quantify MWCNTs in nanocomposites to assess potential hazards and risks from the use of MWCNTs in composite materials. Therefore, we have assessed the … were indicative of an inhomogeneous distribution of MWCNT in the composites. Raman spectroscopy was capable of …
Displaying 4501 - 4525 of 13217
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