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NIST Authors in Bold

Displaying 6101 - 6125 of 73741

Sensors and Machine Learning Models to Prevent Cooktop Ignition and Ignore Normal Cooking

July 28, 2021
Author(s)
Amy Mensch, Anthony Hamins, Wai Cheong Tam, John Lu, Kathryn Markell, Christina You, Matthew Kupferschmid
According to a recent NFPA report, 49 % of reported home fires involve cooking equipment, with cooktops accounting for 87 % of cooking-fire deaths and 80 % of the civilian injuries [1, 2]. Between 2014–2018, U.S. fire departments responded to an estimated

Small-Angle Neutron Scattering Characterization of SrCl 2 -ENG Composite for Thermochemical Heat Storage

July 28, 2021
Author(s)
Anastasiia Karabanova, Kenneth D. Knudsen, Perizat Berdiyeva, Leide P. Cavalcanti, Yun Liu, Michel van der Pal, Stefano Deledda, Didier Blanchard
This work presents an in-situ nanoscale structural characterization of the composite material SrCl 2-Expanded Natural Graphite (ENG) during ammonia absorption and desorption, using small angle neutron scattering (SANS) together with X-ray powder

Temperature-insensitive silicone composites as ballistic witness materials: the impact of water content on the thermophysical properties

July 28, 2021
Author(s)
Ran Tao, Fan Zhang, Huong Giang Nguyen, Philip Bernstein, Amanda L. Forster, Randy Mrozek, Aaron M. Forster
In this work, different formulations of a room-temperature silicone composite backing material (SCBM) composed of polydimethylsiloxane (PDMS), fumed silica and corn starch were investigated using different characterization techniques, i.e., differential

A System for Validating Resistive Neural Network Prototypes

July 27, 2021
Author(s)
Brian Hoskins, Mitchell Fream, Matthew Daniels, Jonathan Goodwill, Advait Madhavan, Jabez J. McClelland, Osama Yousuf, Gina C. Adam, Wen Ma, Muqing Liu, Rasmus Madsen, Martin Lueker-Boden
Building prototypes of heterogeneous hardware systems based on emerging electronic, magnetic, and photonic devices is an increasingly important area of research. On the face of it, the novel implementation of these systems, especially for online learning

Cannabis Quality Assurance Program: Exercise 1 Final Report

July 27, 2021
Author(s)
MARYAM ABDUL-RAHMAN, Melissa M. Phillips, Walter Brent Wilson
NIST launched a CannaQAP in 2020 to improve the comparability of the analytical measurements in forensic and Cannabis (hemp and marijuana) testing laboratories. CannaQAP is an interlaboratory study mechanism that is similar to a proficiency testing scheme

Communication Technology Problems and Needs of Rural First Responders

July 27, 2021
Author(s)
Kerrianne Buchanan, Yee-Yin Choong, Shanee Dawkins, Sandra Spickard Prettyman
Although new technology may benefit rural first responders to help them serve their communities, to date little is known about what communication technology problems rural first responders most need addressed and what future technology they desire. To

Current Problems, Future Needs: Voices of First Responders about Communication Technology

July 27, 2021
Author(s)
Kerrianne Buchanan, Shanee Dawkins, Yee-Yin Choong, Mary Frances Theofanos, Kristen K. Greene, Susanne M. Furman, Sandra Spickard-Prettyman
With advances in network technologies, there has been increasing interest in developing new communication technology for first responders that utilizes wireless broadband networks. In order to develop new communication technology, user requirements are

De-excitation dynamics of muonic atoms revealed by high precision spectroscopy of electronic K x rays using a superconducting transition-edge sensor microcalorimeter

July 27, 2021
Author(s)
Douglas Bennett, W.Bertrand (Randy) Doriese, Malcolm Durkin, Joseph Fowler, Johnathon Gard, Gene C. Hilton, Kelsey Morgan, Galen O'Neil, Carl D. Reintsema, Dan Schmidt, Daniel Swetz, Joel Ullom, Toshiyuki Azuma, Pietro Caradonna, I-Huan Chiu, Tadashi Hashimoto, Ryota Hayakawa, Yuto Ichinohe, Paul Indelicato, TadaAki Isobe, Sohtaro Kanda, Daiji Kato, Miho Katsuragawa, Naritoshi Kawamura, Yasushi Kino, Kenya Kubo, Kairi Mine, Yasuhiro Miyake, Kazuhiko Ninomiya, Hirofumi Noda, Shinji Okada, Takuma Okumura, Kenichi Okutsu, Takahito Osawa, Nancy Paul, Kouichiro Shimomura, Patrick Strasser, Hirotaka Suda, Tadayuki Takahashi, Shinichiro Takeda, Soshi Takeshita, Motonobu Tampo, Hideyuki Tatsuno, XiaoMin Tong, Yasuhiro Ueno, Shin Watanabe, Shinya Yamada
We observed electronic K x rays emitted from muonic iron atoms using a superconducting transition-edge-type sensor microcalorimeter. The energy resolution of 5.2 eV in FWHM allowed us to observe the asymmetric broad profile of the electronic characteristic

A Hybrid Wired/Wireless Deterministic Network for Smart Grid

July 26, 2021
Author(s)
Bin Hu, Hamid Gharavi
With the rapid growth of time-critical applications in smart grid, robotics, autonomous vehicles, and industrial automation, demand for high reliability, low latency and strictly bounded jitter is sharply increasing. High-precision time synchronization

Layered Double Perovskites

July 26, 2021
Author(s)
Hayden Evans, Lingling Mao, Ram Seshadri, Anthony K. Cheetham
Successful strategies for the design of crystalline materials with useful function are frequently based on the systematic tuning of chemical composition within a given structural family. Perovskites with the formula ABX 3, perhaps the best-known example of

Promoting Persistent Superionic Conductivity in Sodium Monocarba-closo-dodecaborate NaCB11H12 via Confinement within Nanoporous Silica

July 26, 2021
Author(s)
Mikael Andersson, Vitalie Stavila, Alexander V. Skripov, Mirjana Dimitrievska, Malgorzata T. Psurek, Juscelino Leao, Olga Babanova, Roman Skoryunov, Alexei Soloninin, Maths Karlsson, Terrence J. Udovic
Superionic phases of bulk anhydrous salts based on large cluster-like polyhedral (carba)borate anions are generally stable only well above room temperature, rendering them unsuitable as solid-state electrolytes in energy-storage devices that typically

Real-Time Low-Frequency Oscillations Monitoring

July 26, 2021
Author(s)
Bin Hu, Hamid Gharavi
A major concern for interconnected power grid systems is low frequency oscillation, which limits the scalability and transmission capacity of power systems. Un-damped, or poorly-damped oscillations will lead to undesirable conditions or even a catastrophic

Programmable System on Chip for controlling an atomic physics experiment

July 23, 2021
Author(s)
Ananya Sitaram, Gretchen K. Campbell, Alessandro Restelli
Most atomic physics experiments are controlled by a digital pattern generator used to synchronize all equipment by providing triggers and clocks. Recently, the availability of well-documented open-source development tools has lifted the barriers to using

Review of the Advanced Encryption Standard

July 23, 2021
Author(s)
Nicky Mouha, Morris Dworkin
The field of cryptography continues to advance at a very rapid pace, leading to new insights that may impact the security properties of cryptographic algorithms. The Crypto Publication Review Board ("the Board") has been established to identify

Atom probe tomography

July 22, 2021
Author(s)
Ann Chiaramonti Debay, Baptiste Gault, Julie Cairney, Michael P. Moody, Oana Cojocaru-Miredin, Patrick Stender, Renelle Dubosq, Christoph Freysoldt, Surendra Kumar Makineni, Tong Li
Atom probe tomography (APT) provides three-dimensional compositional mapping with sub-nanometre resolution. The sensitivity of APT is in the range of parts per million for all elements, including light elements such as hydrogen, carbon or lithium, enabling

Neutron Scattering Investigations of the Global and Local Structures of Ammine Yttrium Borohydrides

July 22, 2021
Author(s)
Jakob Grinderslev, Mikael S. Andersson, Benjamin Trump, Wei Zhou, Terrence J. Udovic, Maths Karlsson, Torben Jensen
Complex metal hydrides are a fascinating and continuously expanding class of materials with many properties relevant for solid-state hydrogen and ammonia storage and solid state electrolytes. The crystal structures are often investigated using powder X-ray

Simulated filament shapes in embedded 3D printing

July 22, 2021
Author(s)
Leanne Friedrich, Jonathan Seppala
Embedded 3D printing, wherein fluid inks are extruded into a bath, has enabled the manufacture of complex, custom structures ranging from cell-laden tissue analogues to soft robotics. This method encompasses two techniques: embedded ink writing (EIW)

Comparison Demonstrates Factor of Three Improvement in Gas Flow Measurements

July 21, 2021
Author(s)
John D. Wright, Gina Kline, Kevin John, Brian Novitsky, Jason Bellavance, Kevin SHufelt, Bradley Nease, Miles Owen, Joseph Allen, Casey Rombouts, William Gause, John Cuccio
A comparison of seven gas flow calibration laboratories piloted by NIST used four laminar flow meters as the transfer standards for nine nitrogen gas flows ranging from 1 sccm to 10 slm. The comparison reference value was calculated from the uncertainty

Fluorescence Microscopy Reveals Structure-Property Relationships and Polymer Dynamics in Biocomposites

July 21, 2021
Author(s)
Quinn Easter, Shawn Chen, Jeremiah Woodcock, Amanda Souna, Sindhu Seethamraju, Jan Obrzut, Douglas M. Fox, Stephan J. Stranick, Jeffrey Gilman
OBJECTIVES: Developing the next generation of materials for use in restorative work requires a multifaceted approach. While mimicking the properties of the tooth, currently available dental composites and porcelains eventually fail and require replacement

NVLAP Federal Warfare System(s)

July 21, 2021
Author(s)
Bradley Moore, John Matyjas, Raymond Tierney, Jesse Angle, Jeannine Abiva, Jeff Hanes, David Dobosh, John Avera
NIST Handbook 150-872 presents the technical requirements and guidance for the accreditation of laboratories under the National Voluntary Laboratory Accreditation Program (NVLAP) Federal Warfare System(s) (FWS) program. It is intended for information and
Displaying 6101 - 6125 of 73741
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