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Search Publications

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Displaying 4676 - 4700 of 73839

Pruning the Mechanical Impedance of Three-Dimensional Disordered Networks

February 21, 2022
Author(s)
Marcos Reyes-Martinez, Edwin Chan, Christopher Soles, Michael Riley, Endao Han, Nidhi Pashine, Kieran Murphy, Heinrich Jaeger, Sidney Nagel, Daniel Reid, Meng Shen, Juan J. de Pablo
Disordered networks, comprised of random arrangements of bonds and nodes, have emerged as materials with the unique ability for independent control over the shear and bulk moduli. Recent computational studies have demonstrated that an extremely high degree

Fiber-welded polyionic biocomposites using 1-alkyl-3-vinylimidazolium alkylphosphonate ionic liquids

February 20, 2022
Author(s)
David Durkin, Christian Hoffman, Anders Gulbrandson, Ethan Fessler, Robert Chung, Tyler Cosby, Paul C. Trulove, Ashlee Aiello, Jeremiah Woodcock
In this study, imidazolium-based polymerizable ionic liquids (Poly-ILs) are used to prepare novel polyionic biocomposites through Natural Fiber Welding. Two new Poly-ILs containing the 1-alkyl-3-vinylimidazolium cation and an alkylphosphonate anion were

Full-Stokes polarimetry for visible light enabled by an all-dielectric metasurface

February 20, 2022
Author(s)
Yongze Ren, Shihao Guo, Wenqi Zhu, Pengcheng Huo, Sijia Liu, Song Zhang, Peng Chen, Lu Chen, Henri Lezec, Amit Agrawal, Yanqing Lu, Ting Xu
Decoding arbitrary polarization information from an optical field has triggered unprecedented endeavors in polarization imaging, remote sensing and information processing. Therefore, developing a polarization detection device with full on-chip integration

Absorption Spectra of Martian Dust Simulants

February 18, 2022
Author(s)
James Radney, Christopher D. Zangmeister
Understanding the climate of Mars requires a detailed understanding of the optical properties of Martian dust as it is a ubiquitous component of the atmosphere. The need for a consensus motivates measurements of terrestrial simulants under controlled

Advanced Wireless Test Platform Information Request Report

February 18, 2022
Author(s)
Melissa Midzor, Sumit Roy
This document is a compilation of self-reported information from Federal government agencies provided in response to an Advanced Wireless Test Platforms (AWTP) Information Request by the AWTP Team co-chairs in April 2021. This compliments the November 2020

International comparison CCQM-K10.2018: BTEX in nitrogen at 5 nmol mol-1

February 18, 2022
Author(s)
Christina Cecelski, George C. Rhoderick, Antonio Possolo, Jennifer Carney, Miroslav Vokoun, Jitka Privoznikova, Sangil Lee, Ji Hwan Kang, Yong Doo Kim, Dal Ho Kim, Tatiana Mace, Christophe Sutour, Celine Pascale, Napo Ntsasa, James Tshilongo, Mudalo Jozela, Nompumelelo Leshabane, Goitsemang Lekoto, David Worton, Paul Brewer, Fred Farrow-Dunn, Sergi Moreno, Klaus Wirtz, Volker Stummer, L.A. Konopelko, A.V. Kolobova, Y.A. Kustikov, A.Y. Klimov, O.V. Efremova, Janneke van Wijk, Adriaan van der Veen
The CCQM-K10.2018 comparison aimed to evaluate the capabilities of national metrology institutes (NMIs) to prepare and/or value assign primary reference mixtures containing benzene, toluene, ethylbenzene, p-xylene, m-xylene and o-xylene (subsequently

KEY COMPARISON - Instrumented Charpy tests on low- and high-energy specimens

February 18, 2022
Author(s)
Enrico Lucon, Renato Reis Machado
This report describes a CIPM Key Comparison through the SIM/MWG-7 organization, concerning instrumented impact testing of low-energy (20 J) and high-energy (100 J) Charpy V-notch specimens. In this Comparison, various instrumented and non-instrumented data

The Crane Operator's Tricks and other Shenanigans with a Pendulum

February 18, 2022
Author(s)
Stephan Schlamminger, Leon Chao, David B. Newell, Vincent Lee
The dynamics of a swinging payload suspended from a stationary crane can be described as a simple pendulum, typically an unwelcome phenomenon on a construction site. An experienced crane operator can deliver a swinging payload and stop dead on target in a

Thermal-light heterodyne spectroscopy with frequency comb calibration

February 18, 2022
Author(s)
Scott Diddams, Connor Fredrick, Franklyn Quinlan, Ryan Terrien, Suvrath Mahadevan, Freja Olsen
Precision laser spectroscopy is key to many developments in atomic and molecular physics and the advancement of related technologies such as atomic clocks and sensors. However, in important spectroscopic scenarios, such as astronomy and remote sensing, the

Elucidating Cathode Degradation Mechanisms in NMC811/Graphite Cells Under Fast Charge Rates Using Operando Synchrotron Characterization

February 17, 2022
Author(s)
Cherno Jaye, Daniel A. Fischer, Calvin Quilty, Patrick West, Garrett Wheeler, Lisa Housel, Christoph Kern, Killian Tallman, Lu Ma, Steven Ehrlich, Kenneth Takeuchi, David Bock, Amy Marschilok, Esther Takeuchi
Li-ion batteries capable of extreme fast charging (XFC) are in demand to facilitate widespread EV adoption. While the impact of fast charge on the negative electrode has been studied, degradation of state-of-the-art LiNi0.8Mn0.1Co0.1O2 (NMC811) under XFC

Results from a Black-Box Study for Digital Examiners

February 17, 2022
Author(s)
Barbara Guttman, Mary T. Laamanen, Craig Russell, James Darnell, Chris Atha
The National Institute of Standards and Technology (NIST) conducted a black-box study in conjunction with a scientific foundation review documented in NISTIR 8354 – Digital Investigation Techniques: A NIST Scientific Foundation Review (initially released

Temporal tends of persistent organic pollutants in Sarasota Bay common bottlenose dolphins (Tursiops truncatus)

February 17, 2022
Author(s)
John Kucklick, Ashley Boggs-Russell, Kevin Huncik, Amanda Moors, Elizabeth Davis, Gina Ylitalo, Mary McConnell, Christina Makris, Randall Wells
Legacy persistent organic pollutants (POPs) were measured in blubber samples collected from 196 common bottlenose dolphins (Tursiops truncatus) during 2000 to 2016 in the Sarasota Bay, Florida, ecosystem. Legacy POPs included polychlorinated biphenyl

Heterosubstrate Illumination Effects in III-V Solar Cells

February 16, 2022
Author(s)
Brianna Conrad, Behrang Hamadani
Reference cell-based current versus voltage ( I–V ) measurements assume that the effect of an illumination spectrum on a solar cell's performance can be fully captured by the multiplication of the spectrum with the device's spectral response and subsequent

Nuclear Data to Reduce Uncertainties in Reactor Antineutrino Measurements

February 16, 2022
Author(s)
Hans Pieter Mumm, Catherine Romano, Nathaniel Bowden, Andrew Conant, Bethany Goldblum, Patrick Huber, Jonathan Link, Bryce Littlejohn, Juan Pedro Ochoa-Ricoux, Shikha Prasad, Catherine Riddle, Alejandro Sonzogni, William Wieselquist
The large quantities of antineutrinos produced through the decay of fission fragments in nuclear reactors provide an opportunity to study the properties of these particles and to investigate their use in reactor monitoring. The reactor antineutrino spectra

Physics in the Machine: Integrating Physical Knowledge in Autonomous Phase-Mapping

February 16, 2022
Author(s)
A. Gilad Kusne, Austin McDannald, Brian DeCost
Application of artificial intelligence (AI), and more specifically machine learning, to the physical sciences has expanded significantly over the past decades. In particular, science-informed AI, also known as scientific AI or inductive bias AI, has grown

Silicone tube humidity generator

February 16, 2022
Author(s)
Robert F. Berg, Nicola Chiodo, Eric Georgin
We describe the model and construction of a two-flow (or divided-flow) humidity generator, developed at LNE-CNAM, that uses mass flow controllers to mix a stream of dry gas with a stream of humid gas saturated at 28 °C. It can generate a wide range of

Simulation of Residential CO Exposures from Portable Generators with and without CO Hazard Mitigation Systems Meeting Requirements of Voluntary

February 16, 2022
Author(s)
Steven Emmerich, Brian Polidoro, Matthew Hnatov, Janet Buyer, Matthew Brookman
This report documents work performed by the U.S. National Institute of Standards and Technology (NIST) and the U.S. Consumer Product Safety Commission (CPSC) under an interagency agreement in support of the Commission's effort to address the carbon

Analyzing 5G NR-U and WiGig Coexistence with Multiple-Beam Directional LBT

February 15, 2022
Author(s)
Yao Ma, Susanna Mosleh, Jason Coder
The mmWave radio frequency (RF) spectrum allocations provide a large bandwidth and an excellent dynamic spectrum sharing (DSS) opportunity for emerging 5G New-Radio unlicensed (NR-U) and Wireless Gigabit (WiGig) services. To support constructive DSS, we
Displaying 4676 - 4700 of 73839
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