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NIST Authors in Bold

Displaying 38276 - 38300 of 73697

Accuracy limits for simple molecular absorption based wavelength references

September 1, 2004
Author(s)
William C. Swann, Sarah L. Gilbert
We present limitations on the characterization and use of molecular absorption lines for wavelength calibration purposes. These limits assume a Doppler and pressure-broadened absorption spectrum obtained by transmitting light through a simple gas cell

An Integrating Framework for Modeling and Simulation for Emergency Response

September 1, 2004
Author(s)
Sanjay Jain, Charles R. McLean
A number of modeling and simulation tools have been developed and more are being developed for emergency response applications. Each of these tools has focused on a specific aspect of the selected problem, for example, the modeling of spread of an agent

Applications of PSL to Semantic Web Services

September 1, 2004
Author(s)
Michael Gruninger
In this paper we will show how the ontology of the Process Specification Language can be used as an upper-level process ontology that serves as the semantic foundation for the DAML-S ontology for web services.

Counterion associative behavior with flexible polyelectrolytes

September 1, 2004
Author(s)
Vivek M. Prabhu, Eric J. Amis, N S. Rosov
At low ionic strength, organic counterions dress a flexible charged polymer as measured directly by small-angle neutron scattering (SANS) and neutron spin-echo (NSE) spectroscopy. This dressed state, quantified by the concentration dependence of the static

Development Life Cycle and Tools for XML Content Models

September 1, 2004
Author(s)
Boonserm Kulvatunyou, KC Morris, Jeong Buhwan, Puja Goyal
Many integration projects today rely on shared semantic models based on standards represented using Extensible Mark up Language (XML) technologies. Shared semantic models typically evolve and require maintenance. In addition, to promote interoperability

Dielectric Spectroscopy During Extrusion Processing of Polymer Nanocomposites: a High Throughput Processing/Characterization Method to Measure Layered Silicate Content and Exfoliation

September 1, 2004
Author(s)
Rick D. Davis, Anthony J. Bur, M M. McBrearty, Y E. Lee, Jeffrey W. Gilman, P R. Start
Dielectric spectroscopy was conducted during extrusion processing of polyamide-6 (PA6) and layered silicate/polyamide-6 nanocomposites. Dielectric dispersion parameters were identified that appear sensitive to layered silicate concentration and degree of

Effect of Microstructure of Fluorinated Acrylic Coatings on UV Degradation Testing

September 1, 2004
Author(s)
Li Piin Sung, Silvia Vicini, D L. Ho, L Hedli, C Olmstead, Kurt Wood
This paper presents research results on the relationships between the microstructure and the performance/weatherability of fluoropolymer/acrylic coatings. We studied fluoropolymer/acrylic blends of identical composition, prepared as films using three

Effect of Tacticity on the Structure of Poly (1-Octadecene)

September 1, 2004
Author(s)
David L. VanderHart, E Perez, A Bello, G B. Vasquez, Manuel A. Quijada
A sample of poly(1-octadecene), synthesized with a highly active heterogeneous Ziegler-Natta catalyst, has been fractionated with n-heptane, giving soluble and insoluble fractions. Both fractions and the original polymer have been characterized by SEC

Formation of Deprotected Fuzzy Blobs in Chemically Amplified Resists

September 1, 2004
Author(s)
Ronald L. Jones, C G. Willson, T Hu, Eric K. Lin, Wen-Li Wu, D L. Goldfarb, M Angelopoulos, B C. Trinque, G M. Schmidt, M D. Stewart
The requirement of nanometer dimensional control in photolithographic patterning underlies the future of emerging technologies including next generation semiconductors, nanofluidics, photonics, and microelectronic machines (MEMs). Dimensional control is

Four-Wave Mixing in Bose-Einstein Condensate Systems With Multiple Spin States

September 1, 2004
Author(s)
J P. Burke, Paul S. Julienne, Carl J. Williams, Y B. Band, M Trippenbach
We calculate the four-wave mixing (FWM) in a Bose Einstein condensate system having multiple spin wave packets that are initally overlapping in physical space, but have nonvanishing relative momentun that cause them to recede from one another. Three

FY 2004 Programs and Accomplishments Metallurgy Division

September 1, 2004
Author(s)
C A. Handwerker, Frank W. Gayle
This report describes the major technical activities, accomplishments, and areas of scientific expertise in the Metallurgy Division of NIST Materials Science and Engineering Laboratory in FY2004 (October 2003 through September 2004). In this report, we

High-Power Nonlinearity of Optical Fiber Power Meter

September 1, 2004
Author(s)
Igor Vayshenker, Ralph Swafford, Shao Yang
We have developed a system for measuring the nonlinearity of optical fiber power meters at maximum power of 2 W. This system is based on the triplet superposition method. This system provides an accurate determination of optical power meter nonlinearity by

High-Resolution Observations of the Infrared Spectrum of Neutral Neon

September 1, 2004
Author(s)
Craig J. Sansonetti, M M. Blackwell, Edward B. Saloman
We have observed the spectrum of neutral neon (Ne I) emitted by a microwave-excited electrodeless discharge lamp with the National Institute of Standards and Technology 2-m Fourier transform spectrometer. The spectra cover the regions 6929 to 11000 with a
Displaying 38276 - 38300 of 73697
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