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Displaying 37926 - 37950 of 73927

Fingerprint Vendor Technology Evaluation 2003: Summary of Results and Analysis Report

June 30, 2004
Author(s)
Charles L. Wilson, Patrick J. Grother, Ross J. Micheals, S C. Otto, Craig I. Watson, R. A. Hicklin, H Korves, Brad Ulery, M Zoepfl
The Fingerprint Vendor Technology Evaluation (FpVTE) 2003 was conducted to evaluate the accuracy of fingerprint matching, identification, and verification systems. The FpVTE is one of the tests that NIST has conducted in order to fulfill part of its

1 A and 120 mA Thin Film Multijunction Thermal Converters

June 28, 2004
Author(s)
H. Laiz, Thomas F. Wunsch, Joseph R. Kinard Jr., Thomas E. Lipe Jr.
We report on the development of thin-film multijunction thermal converters for the measurement of ac current without relying on parallel current shunts. The materials and designs chosen for these devices have been optimized to provide high accuracy over a

1 A and 120 mA Thin-Film Multijunction Thermal Converters

June 28, 2004
Author(s)
H. Laiz, Thomas F. Wunsch, Joseph R. Kinard Jr., Thomas E. Lipe Jr.
We report on the development of thin-film multijunction thermal converters for the measurement of ac current. The materials and designs chosen for these devices have been optimized to provide high accuracy over a wide range of input levels and frequencies

International Data Series, Issue #3, 2004

June 28, 2004
Author(s)
Michael D. Frenkel
Liquid-vapor equilibria of cyclohelxanol + 1.2-dimethylbenzene and nonane Liquid-vapor equilibria and excess Gibbs energy of I-hexene + benzene, cyclohexane, hexane, and heptane Liquid-vapor equilibria and excess Gibbs energy of tert-butyl methyl ether +

Silicon-Based Tunable-Barrier Single Charge Sources

June 27, 2004
Author(s)
Neil M. Zimmerman
We have demonstrated the operation of, and are assessing theoretically and experimentally the error rates of, silicon-based single-electron turnstiles, pumps, and CCDs. These devices are conceptually very similar to the metal-based single-electron pumps

Spectral Characterization of HST Calibration Lamps - New Pt/Ct-Ne Line Catalogues and Ageing Test

June 25, 2004
Author(s)
F Kerber, Michael R. Rosa, Craig J. Sansonetti, Joseph Reader, Gillian Nave, P Bristow, M Fiorentio, G Lercher
The Space Telescope European Coordinating Facility's (ST-ECF) lamp project, funded directly by the European Space Agency (ESA), is dedicated to the study of hollow cathode calibration lamps as they are used onboard the Hubble Space Telescope (HST). There

Mems-Based Embedded Sensor Virtual Components for SOC

June 24, 2004
Author(s)
Muhammad Afridi, Allen R. Hefner Jr., David W. Berning, Colleen E. Hood, Ankush Varma, Bruce Jacob, Stephen Semancik
The design and implementation of a monolithic MEMS-based (Micro Electro Mechanical Systems) gas sensor virtual component is described. A bulk micromachining technique is used to create suspended microhotplate structures. The thermal properties of the

Reliability of SiC MOS Devices

June 24, 2004
Author(s)
Ranbir Singh, Allen R. Hefner Jr.
Fundamental limitations to oxide reliability are analyzed in silicon carbide based devices. A barrier height primarily determined by band offsets between metal/SiC and the dielectric, and the electric field in the dielectric results in tunneling current

Studies of One-to-One Fingerprint Matching With Vendor SDK Matchers

June 24, 2004
Author(s)
Craig I. Watson, Charles L. Wilson, Karen Marshall, Michael D. Indovina, Robert D. Snelick
NIST has conducted testing of one-to-one SDK (Software Development Kit) based COTS fingerprint matching systems to evaluate the accuracy of one-to-one matching used in the US-VISIT program. Fingerprint matching systems from eight vendors not used in US

Gas Flowmeter Calibrations with the 34 L and 677 L PVTt Standards

June 23, 2004
Author(s)
John D. Wright, Aaron N. Johnson, Michael R. Moldover, Gina M. Kline
This document provides a description of the 34 L and 677 L pressure, volume, temperature, and time (PVTt) primary gas flow standards operated by the National Institute of Standards and Technology (NIST) Fluid Flow Group. These facilities are used to
Displaying 37926 - 37950 of 73927