An official website of the United States government
Here’s how you know
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.
Steven W. Brown, Joseph P. Rice, Jorge E. Neira, Bettye C. Johnson
In this work, we describe radiometric platforms able to produce realistic spectral distributions and spatial scenes for the development of application-specific
The fingerprint datasets in many cases may exceed millions of samples. Thus, the needed size of a biometric evaluation test sample is an important issue in
Liquid agent transport was investigated around an unheated and heated cylinder (to a near-surface temperature of approximately 423 K) under ambient conditions
A compact Josephson voltage standard (CJVS) was constructed using a fixed microwave frequency at 76.76 GHz. The transportability of the CJVS makes in-situ JVS
Kate Remley, Paul D. Hale, David I. Bergman, Darryl A. Keenan
We compare measurements of simple multisines using instruments capable of characterizing both magnitude and relative phase the measured signals. All three
Dylan Williams, Tracy S. Clement, Paul D. Hale, Andrew Dienstfrey
We discuss procedures for calibrating high-speed sampling oscilloscopes at the National Institute of Standards and Technology, and the terminology associated
Samuel L. Manzello, Alexander Maranghides, William E. Mell, Thomas G. Cleary, Jiann C. Yang
A series of real scale fire experiments were performed to determine the size and mass distribution of firebrands generated from Douglas-Fir (pseudotsuga
Accurate clock synchronization and time stamping plays a significant role in ensuring data quality as the semiconductor industry faces an imminent data
Naveen Kalappa, James Moyne, Jonathan Parrott, Ya-Shian Li-Baboud
As benefits begin to be realized for coordination of time-based information throughout the factory and enterprise, the need for synchronization of data at all
We have developed tools and techniques that allow video frame level synchronization of multiple free-running commodity video cameras, microphones, and computer
G. Mei, R. Xu, R. Lao, C. Kwan, Vincent M. Stanford
Real-time speaker verification, with speech acquired using the NIST Mk-III microphone array and an autodirective beamforming algorithm, is demonstrated. The
Natascha S. Milesi-Ferretti, Hannah Friedman, Marti Frank
In 2005, the Executive Committee of the International Energy Agency s (IEA) Energy Conservation in Buildings and Community Systems (ECBCS) program approved the
Patrick S. Lysaght, Joseph Woicik, Brendan Foran, Joel Barnett, Gennadi Bersuker, B H. Lee
HfO2 gate dielectric thin films have been exposed to anneal processing in NH3 and N2 ambient in order to decouple the influence of N incorporation from that of
Krishna Verma Verma, Thomas A. Siewert, F. Beckmann
This paper highlights developments that led the FHWA¿s Office of Bridge Technology, working with State departments of transportation (DOT) and the concrete and
M Erdtmann, M T. Currie, Joseph Woicik, David R. Black
Dislocation glide kinetics dictate in relaxed graded buffers a fundamental opposition between the defectivity and throughput. For state-of-the-art Si-based
Several approaches for the precision control of micro-scale positioning mechanisms, or MEMS nanopositioners, are presented along with initial experimental
Darwin Reyes-Hernandez, J. Brian Hutchison, Laurie E. Locascio, Michael Gaitan
Patterned two-dimensional cell cultures are increasingly important for constructing bioanalytical tools for cell and molecular biology to address questions
Pierre-Alain Auroux, Jayna J. Shah, James Booth, Mulpuri Rao, Laurie E. Locascio, Michael Gaitan
We report on temperature time domain and spectral measurements for on-chip microwave thermocycling. In particular we observe enhanced specificity of the heating
Andreas Jahn, Wyatt N. Vreeland, Don DeVoe, Laurie E. Locascio, Michael Gaitan
Previously, we demonstrated liposome formation using hydrodynamic focusing in a microfluidic network which enables us to produce liposomes of a controlled size
Alan Brannon, Vladislav Gerginov, Svenja A. Knappe, Z Popovic, John E. Kitching
We report on our progress in developing a prototype Chip-Scale Atomic Clock with the integration of the local oscillator and the physics package. A discussion
As of October 2006, there were approximately 535 citations to the seminal 1977 paper of Misra and Sudarshan which pointed out the quantum Zeno paradox (more
Consider a system of two millimeter wave transceiver nodes A and B. We assume that each node is equipped with a circular array antenna that has beamforming
NIST has developed numerous platforms for characterizing the physical properties of sample libraries with orthogonal gradients using combinatorial methodologies
Gurpreet Singh, Paul Rice, Richard J. McIntosh, Roop L. Mahajan
A prototype microtome knife for cutting 100 nm thick slices of frozen-hydrated biological samples has been constructed using multiwalled carbon nanotubes (MWCNT