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Physics

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Displaying 576 - 600 of 4526

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
Data for interpreting virus inactivation on N95 face filtering respirators (FFRs) by ultraviolet (UV) radiation are important in developing UV strategies for N95 FFR disinfection and reuse for any situation, whether it be everyday practices, contingency

Models for an Ultraviolet-C Research and Development Consortium

March 25, 2022
Author(s)
Dianne L. Poster, C Cameron Miller, Yaw S. Obeng, John J. Kasianowicz, Michael T. Postek, Norman Horn, Troy Cowan, Richard Martinello
The development of an international, precompetitive, collaborative, ultraviolet (UV) research consortium is discussed as an opportunity to lay the groundwork for a new UV commercial industry and the supply chain to support this industry. History has

Recent Advances in Weyl Semimetal ( MnBi2Se4) and Axion Insulator (MnBi2Te4)

March 25, 2022
Author(s)
Sugata Chowdhury, Kevin Garrity, Francesca Tavazza
Extensive research is currently focused on 2D and 3D magnetic topological insulators (MTIs), as their many novel properties make them excellent candidates for applications in spintronics and quantum computing. Practical MTIs requires a combination of

Entropy transfer from a quantum particle to a classical coherent light field

March 23, 2022
Author(s)
John Bartolotta, Simon Jager, Jarrod Reilly, Matthew Norcia, James K. Thompson, Graeme Smith, Murray Holland
In the eld of light-matter interactions, it is often assumed that a classical light field that interacts with a quantum particle remains almost unchanged and thus contains nearly no information about the manipulated particles. To investigate the validity

Influence of Dimensionality on the Charge Density Wave Phase of 2H-TaSe2

March 23, 2022
Author(s)
Sugata Chowdhury, Albert Rigosi, Heather Hill, David B. Newell, Angela R. Hight Walker, Francesca Tavazza, Andrew Briggs
Metallic transition metal dichalcogenides like tantalum diselenide (TaSe2) exhibit exciting behaviors at low temperatures including the emergence of charge density wave (CDW) states. In this work, density functional theory (DFT) is used to classify the

NIST Time and Frequency Bulletin

March 17, 2022
Author(s)
Kelsey Rodriguez
The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST services.

Quantifying Receiver Nonlinearities in VNA Measurements for the WR-15 Waveguide Band

March 15, 2022
Author(s)
Angela Stelson, Aaron Hagerstrom, Jeffrey Jargon, Chris Long
Scattering (S-) parameters are fundamental to numerous microwave quantities including antenna factors, microwave power, and phase. The uncertainty in S-parameter measurements is influenced by the test setup, including instrument noise, drift, position of