NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

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 35876 - 35900 of 73697

Stability of Global Entanglement in Thermal States of Spin Chains

October 1, 2005
Author(s)
Stephen Bullock, G K. Brennen
The n-qubit concurrence canonical decomposition (CCD) is a generalization of the two-qubit canonical decomposition SU(4)=[SU(2) (x) SU(2)] ? [SU(2) (x) SU(2)], where ? is the commutative group which phases the maximally entangled Bell basis. A prequel

Statistical Approaches in the NIST World Trade Center Analysis

October 1, 2005
Author(s)
James J. Filliben
The Federal Building and Fire Safety Investigation of the World Trade Center Disaster is currently essentially completed. The pre-collapse progression was extremely complicated, with structural, thermal, dynamic and stochastic interdependencies across time

Strategic Directions in Information and Knowledge Management

October 1, 2005
Author(s)
Stephen Quirolgico
We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric systems on a population approaching 1,000 individuals. Majority of prior studies of multimodal

The Application of MatML to Contaminant Emissions Data

October 1, 2005
Author(s)
E F. Begley, Cynthia H. Reed
Standard data formats are generally employed because they save time and money by promoting interoperability, i.e., facilitating data exchange and preserving information for re-use, and are available for a wide variety of business, scientific, and

The Mobicents Open SLEE Platform: Architecture, Implementation, and Programming

October 1, 2005
Author(s)
Mudumbai Ranganathan, I Ivanov, Francesco Moggia
We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric systems on a population approaching 1,000 individuals. Majority of prior studies of multimodal

Unsupervised Anomaly Detection System Using Next-Generation Router Architecture

October 1, 2005
Author(s)
Richard A. Rouil, Nicolas Chevrollier, Nada T. Golmie
Unlike many intrusion detection systems that rely mostly on labeled training data, we propose a novel technique for anomaly detection based on unsupervised learning and we apply it to counter denial-of-service attacks. Initial simulation results suggest

WEAR: World Engineering Antropometry Resource Website

October 1, 2005
Author(s)
Sanford P. Ressler
This paper demonstrates that, for large-scale tests, the match and non-match similarity scores have no specific underlying distribution function. The forms of these distribution functions require a nonparametric approach for the analysis of the fingerprint

Web Services Quality Testing

October 1, 2005
Author(s)
Jia Zhang, L Zhang
The National Software Reference Library (NSRL) of the U.S. National Institute of Standards and Technology (NIST) collects software from various sources and publishes file profiles computed from this software (such as MD5 and SHA-1 hashes) as a Reference

Wireless Enhancements for Storage Area Networks

October 1, 2005
Author(s)
David W. Griffith, Kotikalapudi Sriram, J Gao, Nada T. Golmie
We propose the creation of a wireless storage area network (SAN) and analyze its benefits. The proposed wireless SAN (WSAN) consists of a SAN switch that is connected to multiple wireless access points (APs) that communicate with the storage devices. This

Zeroing in on a Lead-Free Solder Database

October 1, 2005
Author(s)
Thomas A. Siewert, David R. Smith
The rising interest in lead-free solders creates a need for complete property data on the various lead-free solder compositions. Circuit designers need these data to assess the impact of the transition on product life, and production engineers need these

Effect of Dissolved Air on the Density and Refractive Index of Water

September 30, 2005
Author(s)
Allan H. Harvey, Simon G. Kaplan, John H. Burnett
We consider the effect of dissolved air on the density and the refractive index of liquid water from 0 ¿aC to 50 ¿aC. The density effect is calculated from the best available values of Henry's constants and partial molar volumes for the components of air

The Study of Silicon Stepped Surfaces as Atomic Force Microscope Calib Standards With a Calibrated AFM at NIST

September 29, 2005
Author(s)
V W. Tsai, Theodore V. Vorburger, Ronald G. Dixson, Joseph Fu, R Koning, Richard M. Silver, Edwin R. Williams
Due to the limitations of modern manufacturing technology, there is no commercial height artifact at the sub-nanometer scale currently available. The single-atom steps on a cleaned silicon (111) surface with a height of 0.314 nm, derived from the lattice

GerberTranslator: Moving towards new PCB standards

September 28, 2005
Author(s)
Matthew L. Aronoff, John V. Messina
This paper describes the key features of the NIST-developed software tool called ?GerberTranslator?. GerberTranslator is a software translator which automates the majority of the work in converting a printed circuit board (PCB) described in the industry
Displaying 35876 - 35900 of 73697
Was this page helpful?