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Displaying 16076 - 16100 of 17290

Determination of SPRT Realization Uncertainties Between Points

September 6, 2006
Author(s)
Christopher W. Meyer, Dean C. Ripple
Calibrated Standard Platinum Resistance Thermometers (SPRTs) are used to realize the International Temperature Scale of 1990 (ITS-90) from 13.8033 K to 1234.93 K. The SPRTs are calibrated at a series of fixed points, each assigned a temperature on the ITS

LEAD-FREE SOLDER DATA: COLLECTION AND DEVELOPMENT

January 10, 2005
Author(s)
Thomas A. Siewert, David R. Smith, Yi-Wen Cheng, Juan C. Madeni, S X. Liu
The rising interest in lead-free solders creates a need for complete property data on the various lead-free solder compositions. Various types of data are available, but are widely dispersed through the literature. To improve the sharing of this important

Feature-Based Component Model for Design of Embedded Systems

November 1, 2004
Author(s)
XuanFang Zha, Ram D. Sriram
An embedded system is a hybrid of hardware and software, which combines software?s flexibility and hardware real-time performance. Embedded systems can be considered as assemblies of hardware and software components. An Open Embedded System Model (OESM) is

Analysis of the N 2 , N 4 Infrared Hot Bands and N 1 CARS Spectrum of 34 S 16 O 3

February 1, 2003
Author(s)
J Barber, E T. Chrysostom, Tony Masiello, J Nibler, A G. Maki, A Weber, Thomas A. Blake, R L. Sams
High-resolution (0.0015 cm -1) infrared spectroscopy has been used to study the 34S 16O 3 IR-active hot bands originating from the Ņ 2 and Ņ 4 bending mode levels and terminating in the states 2Ņ 2 (I = 0), Ņ 2 + Ņ 4 (I = 1), and 2Ņ 4 (I = 0, 2). The upper

Calibration Experiments of a Laser Scanner

September 1, 2002
Author(s)
Geraldine S. Cheok, Stefan D. Leigh, Andrew L. Rukhin
… experiments conducted at the National Institute of Standards and Technology to characterize a LADAR with the …

Performance of Personal Alert Safety Systems in Laboratory and Full-Scale Experiments

April 18, 2002
Author(s)
Nelson P. Bryner, Daniel M. Madrzykowski, D W. Stroup, J H. Lee
In 1998, over 500 firefighters in the United States were trapped in structure fires that resulted in injury or death of firefighters. Firefighters can be quickly overcome by the heat or smoke of a fire and may be unable to alert other fire ground personnel

Moving the Pulsed Heating Technique Beyond Monolithic Specimens: Experiments with Coated Wires

August 1, 2001
Author(s)
Daniel Josell, D Basak, J L. McClure, Ursula R. Kattner, Maureen E. Williams, William J. Boettinger, M Rappaz
Pulsed heating experiments based on pyrometric measurement of the temperature-time history of metal specimens rapidly heated by passage of electric current have a thirty year history at NIST. In recent years, efforts have been made to move beyond the

Small Fixed-Point Cells for Use in Dry Well Block Calibrators

June 1, 2001
Author(s)
Gregory F. Strouse
As part of a research project for the Combined Calibration Group (CCG) of the U.S. Armed Forces, three rugged fixed-point cells were developed for use in dry well block calibrators (DWBCs). The small fixed-point cells of the water triple point (0.01 C)

A Phase-Field Model With Convection: Sharp-Interface Asymptotics

May 1, 2001
Author(s)
D M. Anderson, Geoffrey B. McFadden, A A. Wheeler
We have previously developed a phase-field model of solidification that includes convection in the melt. This model represents the two phases as viscous liquids, where the putative solid phase has a viscosity much larger than the liquid phase. The object
Displaying 16076 - 16100 of 17290
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