U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 8726 - 8750 of 73751

Field-Only Surface Integral Equations: Scattering from a Dielectric Body

February 1, 2020
Author(s)
Qiang Sun, Evert Klaseboer, Alex Yuffa, Derek Y. Chan
An efficient field-only nonsingular surface integral method to solve Maxwell's equations for the components of the electric field on the surface of a dielectric scatterer is introduced. In this method, both the vector wave equation and the divergence-free

Field-Only Surface Integral Equations: Scattering from a Perfect Electric Conductor

February 1, 2020
Author(s)
Qiang Sun, Evert Klaseboer, Alex Yuffa, Derek Y. Chan
A field-only boundary integral formulation of electromagnetics is derived without the use of surface currents that appear in the Stratton--Chu formulation. For scattering by a perfect electrical conductor (PEC), the components of the electric field are

Leveraging Side-channel Information for Disassembly and Security

February 1, 2020
Author(s)
JUNGMIN Park, Fahim Rahman, Apostol Vassilev, Domenic Forte, Mark Tehranipoor
With the rise of Internet of Things (IoT), devices such as smartphones, embedded medical devices, smart home appliances as well as traditional computing platforms such as personal computers and servers have been increasingly targeted with a variety of

Methods to calibrate a three-sphere scale bar for laser scanner performance evaluation per the ASTM E3125-17

February 1, 2020
Author(s)
Ling Wang, Balasubramanian Muralikrishnan, Vincent D. Lee, Prem K. Rachakonda, Daniel S. Sawyer, Joe Gleason
A scale bar with sphere targets is one way of realizing the symmetric and asymmetric length tests to evaluate terrestrial laser scanner (TLS) performance per the ASTM E3125-17 standard. The length of the scale bar is required to be known with an expanded

Moment subset sums over finite fields

February 1, 2020
Author(s)
Tim LAI, Alicia Marino, Angela Robinson, Daqing Wan
The k-subset sum problem over finite fields is a classical NP-complete problem. Motivated by coding theory applications, a more complex problem is the higher m-th moment k-subset sum problem over finite fields. We show that there is a deterministic

Pressure-Thresholded Response in Cylindrically Shocked Cyclotrimethylene Trinitramine (RDX)

February 1, 2020
Author(s)
Leora E. Dresselhaus-Cooper, Dmitro Martynowych, Fan Zhang, Charlene Tsay, Jan Ilavsky, SuYin Wang, Yu-Sheng Chen, Lara Leininger, Keith A. Nelson
We demonstrate a strongly thresholded response in cyclotrimethylene trinitramine (RDX) that is cylindrically shocked using a novel waveguide geometry. Using ultrafast single-shot multi-frame imaging, we demonstrate that a 100-μm diameter single crystal of

Reversed Ethane/Ethylene Adsorption in Metal-Organic Frameworks via Introduction of Oxygen

February 1, 2020
Author(s)
Ling Yang, Wei Zhou, Hao Li, Ali Alsalme, Litao Jia, Jinping Li, Libo Li, Banglin Chen
Separation of ethane from ethylene is a very important but challenging process in the petrochemical industry. Finding an alternative method would reduce the energy needed to make the 170 million tons of ethylene manufactured worldwide each year. Adsorptive

A Method for Handling the Extrapolation of Solid Crystalline Phases to Temperatures far above their Melting Point

January 31, 2020
Author(s)
Bo Sundman, Ursula R. Kattner, Sedigeh Bigdeli, Qing Chen, Alan Dinsdale, Bengt Hallstedt, Zhangting He, Mats Hillert, Richard Otis, Malin Selleby
Thermodynamic descriptions in databases for applications in computational thermodynamics require a number of models to describe the Gibbs energy of stable as well as metastable phases of the pure elements as a basis to model compounds and solution phases

A Review of Social Media Use During Disaster Response and Recovery Phases

January 31, 2020
Author(s)
Camila E. Young, Erica D. Kuligowski, Aashna Pradhan
Under the National Construction Safety Team Act, the National Institute of Standards and Technology (NIST) conducted an investigation of the May 22, 2011 tornado in Joplin, Missouri. The final report concluded with a list of sixteen recommendations
Displaying 8726 - 8750 of 73751
Was this page helpful?