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Search Publications

NIST Authors in Bold

Displaying 4401 - 4425 of 74061

NIST PSCR: Economic Impact Analysis

June 4, 2021
Author(s)
Lou Nadeau, Ph.D., Melanie Sands, Douglas Lyons, Clara Berger, Sarah Hughes
NIST's Public Safety Communications Research (PSCR) Division is the primary federal laboratory focused on conducting research, development, testing, and evaluation for public safety communications technologies. Their mission is to accelerate communications

The Evolving Temperature Field in a 1 m Methanol Pool Fire

June 4, 2021
Author(s)
Jian Chen, Kunhyuk Sung, Zhigang Wang, Andy Tam, Ki Yong Lee, Anthony Hamins
Thin filament pyrometry is used to measure the time-varying temperature field in a 1 m methanol pool fire. A digital camera with optical filters and zoom lens recorded the emission intensity of an array of 12 µm Silicon-Carbide filaments oriented

Coupling an epitaxial quantum dot to a fiber-based external-mirror microcavity

June 3, 2021
Author(s)
Andreas Muller, Edward B. Flagg, Michael Metcalfe, John R. Lawall, Glenn S. Solomon
We report the coupling of individual InAs quantum dots (QDs) to a single mode of an external-mirror optical microcavity. The external mirror is bonded to a fiber and positioned above a semiconductor sample consisting of a QD-containing GaAs layer grown

Exact Tile-Based Segmentation Inference for Images Larger than GPU Memory

June 3, 2021
Author(s)
Michael P. Majurski, Peter Bajcsy
We address the problem of performing exact (tiling-error free) out-of-core semantic segmentation inference of arbitrarily large images using fully convolutional neural networks (FCN). FCN models have the property that once a model is trained, it can be

Heterodyne measurement of resonant elastic scattering from epitaxial quantum dots

June 3, 2021
Author(s)
Michael Metcalfe, Glenn S. Solomon, John Lawall
Resonant elastic scattering from InAs quantum dots (QDs) is studied by heterodyne spectroscopy. We show theoretically that heterodyne spectroscopy of a two-level quantum emitter is not sensitive to the inelastic fluorescence component. In practice, we

High-performance semiconductor quantum dot-single- photon sources

June 3, 2021
Author(s)
Glenn S. Solomon
Single photons are a key, fundamental element of most quantum optical technologies, be it for the development of large-scale quantum communication networks, for quantum simulation, or for connecting quantum memories in a quantum computer. The ideal single

Photonic quantum simulations of SSH-type topological insulators with perfect state transfer

June 3, 2021
Author(s)
Thomas Gerrits, Sae Woo Nam, Adriana Lita, M. Stobinska, T Sturges, A. Buraczewski, W.R. Clements, Jelmer J. Renema, Ian Walmsley
Topological insulators could profoundly impact the fields of spintronics, quantum computing and low-power electronics. To enable investigations of these non-trivial phases of matter beyond the reach of present-day experiments, quantum simulations provide

Probing Clustering Dynamics between Silicon and PAA or LiPAA Slurries under Processing Conditions

June 3, 2021
Author(s)
Mary Burdette-Trofimov, Beth Armstrong, Ryan Murphy, Luke Heroux, Mathieu Doucet, Alexander Rogers, Gabriel Veith
This work explores the complex interplay between slurry aggregation, agglomeration, and conformation (i.e. shape) of poly(acrylic acid) (PAA) and lithiated poly(acrylic acid) (LiPAA) based silicon slurries as a function of shear rate, and the resulting

Resonant Spin Transmission Mediated by Magnons in a Magnetic Insulator Multilayer Structure

June 3, 2021
Author(s)
Yabin Fan, Joseph Finley, Jiahao Han, Megan E. Holtz, Patrick Quarterman, Pengxiang Zhang, Taqiyyah S. Safi, Justin T. Hou, Alexander Grutter, Luqiao Liu
One important goal of magnonics is to discover novel wave properties of magnons, which are quanta of collective excitation in magnets, to make it compatible for application on coherent information transmission and processing1,2. However, thin-film

Spatially Compounded Weather Events: An Example from Hurricanes Matthew and Florence

June 3, 2021
Author(s)
Scott Curtis, Kelley DePolt, Jamie Kruse, Anuradha Mukherji, Jennifer Helgeson, Ausmita Ghosh, Philip Van Wagoner
The simultaneous rise of tropical-cyclone-induced flood waters across a large hazard management domain can stretch rescue and recovery efforts. Here we present a means to quantify the connectedness of maximum surge during a storm with geospatial statistics

Biodegradable Zwitterionic Poly(Carboxybetaine) Microgel for Sustained Delivery of Antibodies with Extended Stability and Preserved Function

June 2, 2021
Author(s)
Amir Erfani, Abanoub Hanna, Payam Zarrintaj, Saeed Manouchehri, Katie Weigandt, Clint P. Aichele, Joshua D. Ramsey
Many recent innovative treatments are based on monoclonal antibodies (mAbs) and other protein therapies. Nevertheless, sustained subcutaneous, oral or pulmonary delivery of such therapeutics are limited by the poor stability, short half-life, and non

Dielectric-Loaded Microwave Rectangular Waveguide and Higher Order Modes Resonator

June 2, 2021
Author(s)
Christopher L. Holloway, Abdulaziz H. Haddab, Edward Kuester
Resonant transmission through a dielectric-loaded slot in a thick conducting diaphragm embedded in a rectangular waveguide is modeled using an analytical approximation based on the slot being small compared to a free space wavelength. Image theory relates

A Multi-Center Quadrature Scheme for the Molecular Continuum

June 1, 2021
Author(s)
Barry I. Schneider, Heman Gharibnejad, nicholas douguet, Luca Argenti, Jeppe Olsen
A common way to evaluate electronic integrals for polyatomic molecules is to use Becke's partitioning scheme [\colorblue}J. Chem. Phys. \bf 88}, 2547 (1988)}] in conjunction with multi- center grids of comparable size. Becke's scheme, however, is efficient

An Introduction to the NIST Smart Grid Interoperability Framework

June 1, 2021
Author(s)
Avi Gopstein
To address changes taking place in the grid, the National Institute of Standards and Technology (NIST) published an update to its Framework and Roadmap for Smart Grid Interoperability Standards. This fourth release of the Smart Grid Framework addresses

Forensic Handwriting Examination and Human Factors: Improving the Practice Through a Systems Approach

June 1, 2021
Author(s)
Melissa Taylor, Brett Bishop, Ted Burkes, Michael Caligiuri, Bryan Found, Carolyne Bird, Wesley Grose, Lauren Logan, Kenneth Melson, Mara Merlino, Larry Miller, Linton Mohammed, Jonathan Morris, John Paul Osborn, Nikola Osborne, Brent Ostrum, Christopher Saunders, Scott Shappell, H. David Sheets, Sargur Srihari, Reinoud Stoel, Thomas Vastrick, Heather Waltke, Emily Will
For some 6,000 years, humans have made an indelible mark on history through the loops, strokes, and other characters that constitute the written form of language - handwriting. The study of handwriting is also an important part of forensic science. By

Preservative Induced Polysorbate 80 Micelle Aggregation

June 1, 2021
Author(s)
Peter H. Gilbert, Zhenhuan Zhang, Ken K. Qian, David P. Allen, Norman J. Wagner, Yun Liu
Small angle neutron scattering (SANS) studies of a model pharmaceutical formulation reveal how formulation stability depends on the compatibility of individual components. Solutions of two common protein formulation excipients, polysorbate 80 (PS80), a

Survey of Data and Models for Refrigerant Mixtures Containing Halogenated Olefins

June 1, 2021
Author(s)
Ian Bell, Demian Riccardi, Ala Bazyleva, Mark O. McLinden
We survey existing data for refrigerant blends containing halogenated olefins (hydrofluoroolefins (HFO), hydrochlorofluoroolefins (HCFO), and hydrochloroolefins (HCO)) in the open literature. The data are primarily taken from the NIST SOURCE database and
Displaying 4401 - 4425 of 74061