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Displaying 1251 - 1275 of 1947

Reference Correlations for Thermophysical Properties of Liquid Water at 0.1 MPa

January 15, 2009
Author(s)
Jan Hruby, Jaroslav Patek, Jaroslav Klomfar, Monika Souckova, Allan H. Harvey
Simple but highly accurate correlations have been developed for the thermodynamic properties, viscosity, thermal conductivity, and static dielectric constant of liquid water as a function of temperature at a pressure of 0.1 MPa. The temperature range

Metrology at the Nanoscale: What are the Grand Challenges?

August 6, 2008
Author(s)
Kevin W. Lyons, Michael T. Postek
Nanometrology provides the means to measure and characterize nanometer scale process and product performance and covers an expanse of topics including instrumentation, measurement methods (off-line and in-process applications), and standards. To meet the

REPRESENTING LAYOUT INFORMATION IN THE CMSD SPECIFICATION

July 9, 2008
Author(s)
Frank H. Riddick, Yung-Tsun T. Lee
Developing mechanisms for the efficient exchange of information between simulations and other manufacturing tools is a critical problem today. For many areas of manufacturing, neither representations for the information nor mechanisms for exchanging the

A Passive Heterodyne HEB Imager Operating at 850 GHz

May 15, 2008
Author(s)
Eyal Gerecht, Dazhen Gu, Lixing You, Sigfrid Yngvessen
We report the development and characterization of a passive heterodyne hot electron bolometer (HEB) imager operating at 850 GHz. HEB detectors provide unprecedented sensitivity and spectral resolution at terahertz frequencies covering the frequency range

XML-BASED IUPAC STANDARD FOR EXPERIMENTAL, PREDICTED, AND CRITICALLY EVALUATED THERMODYNAMIC PROPERTY DATA STORAGE AND CAPTURE (ThermoML): IUPAC Recommendations 2005

May 1, 2006
Author(s)
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Qian Dong, Kenneth N. Marsh, John H. Dymond, William A. Wakeham, Stephen E. Stein, Erich Koenigsberger, Anthony R. Goodwin
ThermoML is an XML-based emerging IUPAC standard for storage and exchange of experimental, predicted, and critically evaluated thermophysical and thermochemical property data. The basic principles, scope, and description of all structural elements of

Protecting Sensitive Information Transmitted in Public Networks

April 21, 2006
Author(s)
Shirley M. Radack
This bulletin summarizes NIST SP 800-77, Guide to IPsec VPNs, which was issued by NIST to help network architects, network administrators, security staff, technical support staff, and computer security program managers who are responsible for the technical

Terahertz circular variable filters

February 15, 2006
Author(s)
Erich N. Grossman, Charles Dietlein, A. Luukanen
We describe a novel class of millimeter-wave and terahertz monochrometers based on adiabatically tuned frequency-selective surfaces. They are analogous to the circular-variable filters commonly used in the infrared for low to moderate resolution

Variable-Temperature Critical-Current Measurements on a Nb 3 Sn Wire

June 1, 2005
Author(s)
Loren F. Goodrich, Theodore C. Stauffer
We made variable-temperature critical-current (I c) measurements on a commercial multifilamentary Nb 3Sn wire for temperatures (T) from 4 to 17 K and magnetic fields (H) from 0 to 12 T using transport current. The sample had a diameter of 0.811 mm and a Cu

Nanometrology - FY 2004 Programs and Selected Accomplishments

April 15, 2005
Author(s)
C M. Allocca
The MSEL Nanometrology Program incorporates basic measurement metrologies to determine material properties, process monitoring at the nanoscale, nano-manufacturing and fabrication techniques, and structural characterization and analysis techniques, such as

Variable-temperature critical-current measurements on a Nb-Ti wire

July 27, 2004
Author(s)
Loren F. Goodrich, Theodore C. Stauffer
We made variable-temperature critical-current (I c) measurements on a commercial multifilamentary Nb-Ti wire for temperatures (T) from 4 to 9 K and magnetic fields (H) from 0 to 11.5 T using transport current. The measurements cover the whole range of

XML Schema Development Guidelines. Version 1.0

February 1, 2004
Author(s)
Mark E. Palmer, M Burns, T L. Teague
These guidelines summarize the background, rationale and guiding principles that the FIATECH program is using to produce XML domain schemas for automating information exchanges in the capital facilities industries and over the life cycle of equipment used

Temperature and Flux Scales for Heat-Flux Sensor Calibration

September 1, 2003
Author(s)
A V. Murthy, D P. DeWitt, Benjamin K. Tsai, Gerald T. Fraser, Robert D. Saunders
Methodologies for calibrating heat-flux sensors designed for direct measurement of heat-transfer at a surface are presented. These sensors, extensively used in fire-test methods and aerospace applications, vary in range from a few kW/m 2 to in excess of

Primary Calibration of Accelerometers at NIST Using a Dual Coil Shaker

November 1, 2001
Author(s)
Beverly F. Payne, David J. Evans
Until recently, the primary calibration of accelerometers at NIST over a frequency range of 50 Hz to 5 kHz utilized three different shakers with separate measurement systems. With the development of the NIST supershaker and associated calibration system

The Orientation of Semifluorinated Alkanes Attached to Polymers at the Surface of Polymer Films

March 1, 2000
Author(s)
Jan Genzer, E Sivaniah, E K. Kramer, J G. Wang, H Kerner, M Xiang, K Char, Christopher K. Ober, B M. DeKoven, Robert A. Bubeck, M K. Chaudhury, S Sambasivan, Daniel A. Fischer
The surface molecular orientation of a liquid crystalline (LC) layer made up a semi-fluorinated (SF) single side-groups [-CO-(CH 2) x-1-(CF 2) yF] (single SF groups) attached to polyisoprene homopolymer or the isoprene block of a styrene-isoprene diblock
Displaying 1251 - 1275 of 1947
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