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Displaying 126 - 150 of 74849

Far-UVC: The impact of optical filters on real-world deployment

July 20, 2024
Author(s)
C Cameron Miller, Ewan Eadie, Paul O'Mahoney, Sally Ibbotson, Kenneth Wood
In 2015, a study showed that Krypton-Chloride (KrCl) excimer lamps could induce erythema and basal layer DNA damage in human skin. Later studies found that filtering out longer wavelength emissions from these lamps resulted in no acute skin effects

Food Nutrition and Safety Measurements Quality Assurance Program: Exercise 2 Final Report

July 19, 2024
Author(s)
Melissa M. Phillips, Colleen E. Bryan Sallee, Carolyn Burdette, Steven J. Christopher
The Food Nutrition and Safety Measurements Quality Assurance Program (FNSQAP) was launched in 2021. FNSQAP was established to assist laboratories in the development and validation of new analytical methods, in improving the quality of their analytical

The NIST Wildland-Urban Interface Fire Case Study Approach and Outlook

July 19, 2024
Author(s)
Eric Link
Wildland-urban interface (WUI) fires are a threat to thousands of communities in the United States. Thousands of structures are destroyed, and thousands of lives are threatened or upended by fires every year. There are valuable lessons to be learned from

Assessing the Benefits and Risks of Quantum Computers

July 17, 2024
Author(s)
Travis Scholten, Carl Williams, Dustin Moody, Michele Mosca, William Hurley, William J. Zeng, Matthias Troyer, Jay Gambetta
Quantum computing is an emerging technology with potentially far-reaching implications for national prosperity and security. Understanding the timeframes over which economic benefits and national security risks may manifest themselves is vital for ensuring

Database-assisted-design facilitating performance-based tall building design

July 17, 2024
Author(s)
Daniel Rhee, Sophie Sisson, Brian Carman, Mehedy Mashnad, DongHun Yeo
In recent years, wind design, particularly for high-rise buildings, has seen a paradigm shift from a code-based descriptive method to a more specific performance-objective-based design. This new approach, known as the Performance-Based Wind Design (PBWD)

Cryptographic Algorithms and Key Sizes for Personal Identity Verification

July 15, 2024
Author(s)
Hildegard Ferraiolo, Andrew Regenscheid
Federal Information Processing Standard 201-3 (FIPS 201-3) defines the requirements for Personal Identity Verification (PIV) life cycle activities, including identity proofing, registration, PIV Card issuance, and PIV Card usage. FIPS 201-3 also defines

Test Facility for Pressure Losses in Plumbing Pipes and Fittings

July 15, 2024
Author(s)
Lingnan Lin, Natascha S. Milesi-Ferretti, Glen A. Glaeser
This report describes a new test facility at NIST for the measurement of pressure losses in pipes and fittings used in plumbing systems. Pressure losses are fundamental inputs to the design of premise plumbing systems, yet the available technical data on

Energy Efficiency Scaling for 2 Decades (EES2) Roadmap for Computing

July 14, 2024
Author(s)
Jim Booth
Abstract—In response to the looming crisis in global energy consumption required for advanced computing applications, the United States Department of Energy (DOE) Advanced Materials and Manufacturing Technology Office (AMMTO) is leading a national effort

Effects of hydrogen on the evolution of 4130 steel microstructure as a result of tensile loading

July 12, 2024
Author(s)
Zack Buck, May Ling Martin, Damian Lauria, Jason Killgore, Peter Bradley, Yan Chen, Ke An, Matthew Connolly
Neutron diffraction and Scanning Kelvin Probe Force Microscopy (SKPFM) were used to study the evolution of lattice strain, dislocation density, and phase partitioning of a ferrite/martensite pressure vessel steel (AISI 4130) that resulted from tensile

Opportunities for Fundamental Physics Research with Radioactive Molecules

July 12, 2024
Author(s)
Michail Athanasakis-Kaklamanakis, Mia Au, Jochen Ballof, Robert Berger, Anastasia Borschevsky, Alexander Breier, Dmitry Budker, Luke Caldwell, Christopher Charles, Vincenzo Cirigliano, Jordy de Vries, David DeMille, Jacek Jacek Dobaczewski, Ch. E. Dullmann, Ephraim Eliav, Ephraim Eliav, Jonathan Engel, Mingyu Fan, Victor Flambaum, Alyssa Gaiser, Ronald Garcia Ruiz, Konstantin Gaul, Thomas Geisen, Alexander Gottberg, Gerald Gwinner, Reinhard Heinke, Steven Hoekstra, Jason Holt, Nicholas Hutzler, Andrew Jayich, Stephan Malbrunot-Ettenauer, Takayuki Miyagi, Iain Moore, Petr Navratil, Witold Nazarewicz, Gerda Neyens, Eric Norrgard, Nicholas Nusgart, Lukas Pasteka, Roy Ready, Moritz Pascal Reiter, Mikael Reponen, Sebastian Rothe, Marianna Safronova, Andrea Shindler, Jaideep Singh, Leonid Skripnikov, Silviu-Marian Udrescu, Shane Wilkins
Radioactive molecules hold great promise for their discovery potential in diverse fields. The extreme nuclear properties of heavy, short-lived nuclei and the intrinsic sensitivity, flexibility, and quantum control opportunities available to molecules make

A unified model of core metrological concepts

July 10, 2024
Author(s)
David W. Flater, Raghu N. Kacker, Douglas Foxvog
The definitions of core metrological terms, especially quantity, quantity value, and unit, have been the subject of years of wrangling in standards organizations. A chronic disagreement exists over whether quantities are conceptualized primarily as

Few-electron highly charged muonic Ar atoms verified by electronic K xrays

July 10, 2024
Author(s)
Takuma Okumura, Toshiyuki Azuma, Douglas Bennett, W. Bertrand (Randy) Doriese, Malcolm Durkin, Joseph Fowler, Johnathon Gard, Tadashi Hashimoto, Ryota Hayakawa, Yuto Ichinohe, Paul Indelicato, Tadaaki Isobe, Sohtaro Kanda, Daiji Kato, Miho Katsuragawa, Naritoshi Kawamura, Yasushi Kino, Nao Kominato, Yasuhiro Miyake, Kelsey Morgan, Hirofumi Noda, Galen O'Neil, Shinji Okada, Kenichi Okutsu, Nancy Paul, Carl D. Reintsema, Toshiki Sato, Dan Schmidt, Kouichiro Shimomura, Patrick Strasser, Daniel Swetz, Tadayuki Takahashi, Shinichiro Takeda, Soshi Takeshita, Motonobu Tampo, Hideyuki Tatsuno, Tong Xiao-Min, Joel Ullom, Shin Watanabe, Shinya Yamada, Takuma Yamashita
Electronic K x rays emitted by muonic Ar atoms in the gas phase were observed using a superconducting transition-edge-sensor microcalorimeter. The high-precision energy spectra provided a clear signature of the presence of muonic atoms accompanied by a few
Displaying 126 - 150 of 74849