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 3876 - 3900 of 7110

Synthesis of Quantum Logic Circuits

January 31, 2006
Author(s)
V V. Shende, Stephen Bullock, I L. Markov
Operators acting on a collection of two-level quantum-mechanical systems can be represented by quantum circuits. In this work we develop a decomposition of such unitary operators which reveals their top-down structure and can be implemented numerically

Document Reverse Engineering: From Paper to XML

August 1, 2002
Author(s)
K H. Lee, Y C. Choy, S B. Cho, Xiao Tang, V R. McCrary
With the widespread of XML documents on the Web, there is a growing interest in transforming paper-based documents into XML representations. In this paper, we present a syntactic method for logical structure analysis of documents with multiple pages and

Development of Combustion and Radiation Models for Large Scale Fire Simulation

September 13, 2001
Author(s)
Kevin B. McGrattan, J E. Floyd, Glenn P. Forney, Simo A. Hostikka, Howard R. Baum
In cooperation with the fire protection engineering community, a numerical fire model, Fire DynamicsSimulator (FDS), is being developed at NIST to study fire behavior and to evaluate theperformance of fire protection systems in buildings. Version 1 of FDS

Approaches to the Optimal Nonlinear Analysis of Microcalorimeter Pulses

March 8, 2018
Author(s)
Joseph W. Fowler, Christine G. Pappas, Bradley K. Alpert, William B. Doriese, Galen C. O'Neil, Joel N. Ullom, Daniel S. Swetz
We consider how to analyze microcalorimeter pulses for quantities that are nonlinear in the data, while preserving the signal-to-noise advantages of linear optimal filtering. We apply the approach to compute the electrothermal feedback energy deficit (the

Representation of Acoustic Waves in Unbounded Domains

January 1, 2005
Author(s)
Bradley K. Alpert, Y Chen
Compact, time-harmonic, acoustic sources produce waves that decay too slowly to be square-integrable on a line away from the sources. We introduce an inner product, arising directly from Green s second theorem, to form a Hilbert space of these waves and

Security for Telecommuting and Broadband Communications

November 1, 2002
Author(s)
Shirley M. Radack
This bulletin summarizes NIST SP 800-46, Security for Telecommuting and Broadband Communications, published September 2002. The report discusses both technical and policy issues, and provides guidance on using personal firewalls, strengthening the security

Guidelines for the Development of Abstract Test Suites, Edition 2

August 1, 2001
Author(s)
Allison Barnard Feeney
ISO 10303 is an International Standard for the computer-interpretable representation of product data and for exchange of product data. The objective is to provide a neutral mechanism capable of describing product data throughout their life cycle. This

Extinction Coefficients for Dielectric and Conducting Doublets of Spheres

January 1, 1998
Author(s)
Egon Marx
The extinction cross-sections of doublets of polystyrene and carbon spheres are determined using the optical theorem. The forward scattering amplitude is computed using the single integral equation method. The extinction cross-sections of the doublets are

SEC-SAXS/MC Ensemble Structural Studies of the Microtubule Binding Protein Cdt1 Show Monomeric, Folded-Over Conformations

June 1, 2025
Author(s)
Kyle Smith, Srinivas Chakravarthy, Manas Chakraborty, Kristen M. Vosberg, Marco Tonelli, Maximilian G. Plach, Arabela A. Grigorescu, Joseph E. Curtis, Dileep Varma
Cdt1 is a mixed folded protein critical for DNA replication licensing and it also has a "moonlighting" role at the kinetochore via direct binding to microtubules and the Ndc80 complex. However, it is unknown how the structure and conformations of Cdt1

Predicting anomalous quantum confinement effect in van der Waals materials

April 21, 2021
Author(s)
Francesca Tavazza, Kamal Choudhary
Materials with van der Waals bonding are known to exhibit a quantum confinement effect, in which the electronic band gap of the three-dimensional realization of a material is lower than that of its two-dimensional (2D) counterpart. However, the possibility

Derived Personal Identity Verification (PIV) Credentials

August 27, 2019
Author(s)
William D. Newhouse
… as part of access management. With the emergence of computing devices, such as tablets, hybrid computers, and, in … while the other leverages hardware built into many computing devices used today. This project resulted in a …

Data-driven Discovery of 3D and 2D Thermoelectric Materials

June 26, 2018
Author(s)
Kamal Choudhary, Kevin Garrity, Francesca Tavazza
Abstract: In this work, we perform a systematic search for high-efficiency, three-dimensional (3D) and two-dimensional (2D) thermoelectric materials by combining semiclassical transport techniques with density functional theory (DFT) calculations. Out of

The Algebra of Systems and System Interactions with an application to Smart Grid

October 14, 2016
Author(s)
Charif Mahmoudi, Hasnae Bilil, Edward R. Griffor
Systems are integrations of devices or component elements and even other systems. The notion of a system comprehends engineered and biological or mechanical or physical systems. Examples include information and dynamical systems as well as integrations of
Displaying 3876 - 3900 of 7110
Was this page helpful?