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Search Publications

NIST Authors in Bold

Displaying 1001 - 1025 of 74066

Investigating the Effect of Medium Chain Triglycerides on the Elasticity of Pulmonary Surfactant

April 17, 2023
Author(s)
Dominik Dziura, Stuart R. Castillo, Mitchell DiPasquale, Omotaya Gbadamosi, Piotr Zolnierczuk, Michihiro Nagao, Elizabeth Kelley, Drew Marquardt
In recent years, vaping has increased in both popularity and ease of access. This has led to an outbreak of a relatively new condition known as e-cigarette/vaping-associated lung injury (EVALI). This injury can be caused by physical interactions between

Symplectic geometry and circuit quantization

April 17, 2023
Author(s)
Andrew Osborne, Trevyn Larson, Sarah Jones, Raymond Simmonds, Andras Gyenis, Andrew Lucas
Circuit quantization is an extraordinarily successful theory that describes the behavior of quantum circuits with high precision. The most widely used approach of circuit quantization relies on introducing a classical Lagrangian whose degrees of freedom

Modeling Approach for the Design of the NIST Neutron Source

April 16, 2023
Author(s)
Abdullah Weiss, Osman Celikten, Anil Gurgen, Joy Shen, Dagistan Sahin, Yaniv Shaposhnik
The NIST Neutron Source, or NNS, is a proposed new research reactor at the NIST Center for Neutron Research to replace the currently operational, but aging, National Bureau of Standards Reactor (NBSR). The NNS is currently in the pre-conceptual design

Pre-Conceptual Design of the NIST Neutron Source

April 16, 2023
Author(s)
Dagistan Sahin, Osman Celikten, Jeremy Cook, Abdullah Weiss, Thomas Newton, David Diamond, Charles F. Majkrzak, Hubert King, Joy Shen, Anil Gurgen, Lap-Yan Cheng, Peter Kohut, Cihang Lu, Athi Varuttamaseni
The National Bureau of Standards Reactor (NBSR), a 20 MW thermal power Material Test Reactor (MTR), is located at the NIST Center for Neutron Research (NCNR), providing a safe and reliable neutron source for the thousands of visiting U.S. and international

The Statistic and Deterministic Kettle

April 16, 2023
Author(s)
Yaniv Shaposhnik, Abdullah Weiss, Dagistan Sahin
In some accident scenarios, a nuclear reactor could be assumed to be similar to a kettle. Namely, the water inside the core, or in this case in the kettle, is experiencing heating, and at some point, for a non-boiling reactor, the safety boundary may be

Modification of Nafion's Nanostructure for the Water Management of PEM Fuel Cells

April 15, 2023
Author(s)
Yuanchao Li, Natalie Schwab, Robert M. Briber, Joseph A. Dura, Trung Van Nguyen
A PEM fuel cell with the Nafion® ionomer phase of the cathode catalyst layer (CL) that was exposed to dry gas during the annealing process showed improved performance over the whole current density range and 220% peak power increase with humidified air at

Vision-based thermal drift monitoring method for machine tools

April 15, 2023
Author(s)
Gregory W. Vogl, Ainsley Rexford, Zongze Li, Robert Landers, Edward Kinzel, Alkan Donmez, Joe Chalfoun
A method is presented to measure machine tool thermal drift for error compensation. A wireless microscope within a tool holder in the spindle is used to capture videos of image targets attached to the worktable. For each target, one video is captured

A Tabletop X-Ray Tomography Instrument for Nanometer-Scale Imaging: Reconstructions

April 14, 2023
Author(s)
Zachary H. Levine, Bradley Alpert, Amber Dagel, Joseph Fowler, Edward Jiminez, Nathan J. Nakamura, Daniel Swetz, Paul Szypryt, Kyle Thompson, Joel Ullom
We show three-dimensional reconstructions of a region of an integrated circuit from a 130 nm copper process. The reconstructions employ x-ray computed tomography, measured with a new and innovative high-magnification x-ray microscope. The instrument uses a

Discussion on the Full Entropy Assumption of the SP 800-90 Series

April 14, 2023
Author(s)
Darryl Buller, Aaron Kaufer, Allen Roginsky, Meltem Sonmez Turan
The NIST SP 800-90 series [1][2][3] supports the generation of high-quality random bits for cryptographic and non-cryptographic use. The security strength of a random number generator depends on the unpredictability of its outputs. This unpredictability

Variant calling and benchmarking in an era of complete human genome sequences

April 14, 2023
Author(s)
Nathanael David Olson, Justin Wagner, Nathan Dwarshuis, Karen Miga, Marc L. Salit, Justin Zook
Genetic variant calling from DNA sequencing has enabled understanding of germline variation in hundreds of thousands of humans. Sequencing technologies and variant-calling methods have advanced rapidly, routinely providing reliable variant calls in most of

A high-strength precipitation hardened cobalt-free high-entropy alloy

April 12, 2023
Author(s)
Matthew Luebbe, Jiaqi Duan, Fan Zhang, Jonathan Poplawsky, Hans Pommeranke, Maalavan Arivu, Andrew Hoffman, Haiming Wen
Recent studies on precipitation-hardened high-entropy alloys (HEAs) demonstrate their high strength and thermal stability, making them promising materials for high-temperature structural applications such as nuclear reactors. However, many existing HEAs

Multivariate Flexible Framework with High Usable Hydrogen Capacity in a Reduced Pressure Swing Process

April 12, 2023
Author(s)
Arijit Halder, Ryan Klein, Sarah Shulda, Gavin McCarver, Philip Parilla, Hiroyasu Furukawa, Craig Brown, C. Michael McGuirk
Step-shaped adsorption¬–desorption of gaseous payloads by a flexible metal–organic framework can facilitate the delivery of large usable capaci-ties with significantly reduced energetic penalties. This is desirable for the storage, transport, and delivery

Rydberg Excitons and Trions in Monolayer MoTe2

April 12, 2023
Author(s)
Souvik Biswas, Aurelie Champagne, Jonah Haber, supavit pokawanvit, Joeson Wong, Hamidreza Akbari, Sergiy Krylyuk, Kenji Watanabe, Albert Davydov, Zakaria Al Balushi, Felipe H. da Jornada, Diana Qiu, Jeffrey Neaton, Harry Atwater
Monolayer transition metal dichalcogenide (TMDC) semiconductors exhibit strong excitonic optical resonances which serve as a microscopic, non-invasive probe into their fundamental properties. Like the hydrogen atom, such excitons can exhibit an entire
Displaying 1001 - 1025 of 74066