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Displaying 36476 - 36500 of 74178

Personal Identity Verification (PIV) of Federal Employees and Contractors

February 1, 2005
Author(s)
William C. Barker, James F. Dray Jr., Ramaswamy Chandramouli, Teresa T. Schwarzhoff, William T. Polk, Donna F. Dodson, Ketan L. Mehta, S Gupta, William E. Burr, Timothy Grance
[Superseded by FIPS 201-1 (March 2006): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50836] FIPS 201 specifies the technical and operational requirements for interoperable PIV systems that issue smart cards as identification credentials and

Redesign of the 112.5 kN Dead Weight Machine Snubber System

February 1, 2005
Author(s)
Kevin L. Chesnutwood
This paper forcuses on the redesign of the snubber system that is used in the 112.5kN dead weight machine located at the National Institute of Standards and Technology in Gaithersburg, Maryland. Obstacles that were overcame pertaining to the original

Science at the Speed of Thought

February 1, 2005
Author(s)
J E. Devaney, Steven G. Satterfield, John T. Kelso, Adele Peskin, William L. George, John G. Hagedorn, Terence J. Griffin, Howard Hung, R D. Kriz

Seamless and Secure Mobility

February 1, 2005
Author(s)
Nada T. Golmie
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

Single-wall Carbon Nanotube Coating on a Pyroelectric Detector

February 1, 2005
Author(s)
John H. Lehman, Chaiwat Engtrakul, Thomas Gennett, Anne Dillon
Carbon single-wall nanotubes (SWNTs) are studied as the thermal-absorption coating on a large area pyroelectric detector. The SWNTs were produced by a laser vaporization method and dispersed onto the detector surface by use of a simple airbrush technique

Soft-Decision Decoding Error Probability Bounds for OFDM/QAM

February 1, 2005
Author(s)
Leonard E. Miller
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Synopsis of the 2004 ASMS Fall Workshop on Polymer Mass Spectrometry

February 1, 2005
Author(s)
William E. Wallace
This year s fall workshop of the American Society for Mass Spectrometry was on the topic of synthetic polymer mass spectrometry and was chaired by Robert P. Lattimer (Noveon, Inc.) and Chrys Wesdemiotis (University of Akron, Department of Chemistry). The

The Rotational Spectrum of the Ground State of Methylamine

February 1, 2005
Author(s)
Vadim V. Ilyushin, E A. Alekseev, S F. Dyubkoa, R A. Motiyenkoa, Jon T. Hougen
Recent progress is reported in measuring, assigning and fitting the rotational spectrum of the ground vibrational state of methylamine, CH3NH2, a spectrum complicated both by internal rotation of the methyl top and by inversion of the amino group. New

Water Distribution Within Immersed Polymer Films

February 1, 2005
Author(s)
B D. Vogt, Christopher Soles, Vivek Prabhu, Sushil K. Satija, Eric K. Lin, Wen-Li Wu
The emergence of immersion lithography as a potential alternative for the extension of current lithography tools will require a fundamental understanding of the interactions between the photoresist and the immersion liquid such as water. The water

Water Immersion of Model Photoresists: Interfacial Influences on Water Concentration and Surface Morphology

February 1, 2005
Author(s)
B D. Vogt, D L. Goldfarb, M Angelopoulos, Christopher Soles, C M. Wang, Vivek Prabhu, P M. McGuiggan, Jack F. Douglas, Eric K. Lin, Wen-Li Wu, Sushil K. Satija
Immersion lithography has emerged as an alternative to the 157 nm node and as such understanding of the interactions between the photoresist and immersion fluid (water) has become a pressing issue. The water concentration within the model photoresist films

A Numerical Method for Mass Spectral Data Analysis

January 31, 2005
Author(s)
Anthony J. Kearsley, William E. Wallace, Javier Bernal, Charles M. Guttman
The new generation of mass spectrometers produces an astonishing amount of high-quality data in a brief period of time leading to inevitable data analysis bottlenecks. Automated data analysis algorithms are required for rapid and repeatable processing of

Camera Calibration for a Manufacturing Inspection Workstation

January 31, 2005
Author(s)
Tsung-Ming Tsai
A CCD camera mounted on a manufacturing part inspection workstation is calibrated for measuring 3D part geometry. It is calibrated by using computer algorithms to analyze data collected from a specially designed calibration image pattern. The calibration

Influence of Tip Wear on Atomic Force Acoustic Microscopy Experiments

January 31, 2005
Author(s)
Malgorzata Kopycinska-Mueller, Roy H. Geiss, Paul Rice, Donna C. Hurley
Tip wear and its corresponding change in geometry is a major impediment for quantifying atomic force acoustic microscopy (AFAM). To better understand the process of tip wear and its influence on AFAM measurements of material elastic properties, we have

Microfabricated Atomic Clocks

January 30, 2005
Author(s)
John E. Kitching, Svenja A. Knappe, Li-Anne Liew, P Schwindt, V Shah, John Moreland, Leo W. Hollberg
We summarize the development of microfabricated atomic frequency references at NIST. The physics packages of these devices have volumes near 10 mm3, power dissipation below 150 mW and can potentially achieve a fractional frequency instability in the range
Displaying 36476 - 36500 of 74178