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NIST Authors in Bold

Displaying 40626 - 40650 of 73963

Knowledge Intensive Collaborative Decision Support for Design Process

September 1, 2003
Author(s)
XuanFang Zha, Ram D. Sriram, W F. Lu
Engineering design is essentially a collaborative decision making process that requires rigorous evaluation, comparison and selection of design alternatives and optimization from a global perspective on the basis of different classes of design criteria

Measurement of Gate-Oxide Film Thickness by X-ray Photoelectron Spectroscopy

September 1, 2003
Author(s)
Cedric J. Powell, Aleksander Jablonski
X-Ray Photoelectron Spectroscopy (XPS) is being used to an increasing extent for the characterization of new gate-oxide materials, particularly for the determination of film composition, uniformity, and thickness. A key parameter for film-thickness

NEXAFS Measurements of the Surface Chemistry of Chemically Amplified Photoresists

September 1, 2003
Author(s)
E Jablonski, M Angelopoulos, H Ito, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, S Sambasivan, Daniel A. Fischer, Ronald L. Jones, Eric K. Lin, Wen-Li Wu, D L. Goldfarb, K Temple
Near edge x-ray absorption fine structure (NEXAFS) spectroscopy was used to quantify the surface composition profile (top 1 nm to 6 nm) of model chemically amplified photoresists with various photo-acid generators. These materials are prone to interfacial

NIST 2003 Language Recognition Evaluation

September 1, 2003
Author(s)
Alvin F. Martin, Mark A. Przybocki
The 2003 NIST Language Recognition Evaluation was very similar to the last such NIST evaluation in 1996. It was intended to establish a new baseline of current performance capability for language recognition of conversational telephone speech and to lay

Novel Chemical Detection Strategies for TCE and PCE

September 1, 2003
Author(s)
A C. Pipino
Novel applications of cavity ring-down spectroscopy (CRDS) to chemical detection are described. Using a linear optical resonator with an intra-cavity double-Brewster-window flow cell, CRDS is employed to probe the optical response to adsorption of the

Optical Manipulation and Fusion of Liposomes as Microreactors

September 1, 2003
Author(s)
S Kulin, N Kishore, Kristian Helmerson, Laurie E. Locascio
We present an all optical method to manipulate and fuse giant liposomes, typically 10 nm in diameter. Optical tweezers are used to trap two individual liposomes, which are then brought into contact. A single pulse of ultraviolet laser light focused on the

Papers from 1991-2003 Halon Options Technical Working Conferences (HOTWC)

September 1, 2003
Author(s)
Richard G. Gann, Star R. Burgess, Paul A. Reneke
As a result of the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer and the 1990 U.S. Clean Air Act, there began a movement toward phaseout of the use of the halon fire suppressants. The HOTWC was initiated as a forum for such contributory

Phototransduction: Crystal Clear

September 1, 2003
Author(s)
K D. Ridge, N G. Abdulaev, M Sousa, K Palczewski
Advances in the structure determination of proteins involved in vertebrate phototransduction suggest that this will be the first G protein-coupled receptor-mediated signaling pathway for which a complete molecular description is available. This review

Progress in Primary Acoustic Thermometry at NIST: 273 K to 505 K

September 1, 2003
Author(s)
Gregory F. Strouse, Dana R. Defibaugh, Michael R. Moldover, Dean C. Ripple
The NIST Acoustic Thermometer determines the thermodynamic temperature by measuring the speed of sound of argon in a spherical cavity. We obtained the thermodynamic temperature of three fixed points on the Interna-tionalTemperature Scale of 1990: the

Radiolytic Reactions of Monochloramine in Aqueous Solutions

September 1, 2003
Author(s)
G A. Poskrebyshev, Robert E. Huie, Pedatsur Neta
Monochloramine reacts with hydrated electrons very rapidly, k(NH 2CI + e aq-) = (2.2 0.2) x 10 10 L mol -1, to produce oNH 2 radicals. It reacts with oOH radicals more slowly, k(NH 2Cl + oOH) = (5.2 0.6) x 10 8 L mol -1 s -1, to produce oNHCl radicals

Reciprocity Law Experiments in Polymeric Photodegradation: A Critical Review

September 1, 2003
Author(s)
Jonathan W. Martin, Joannie W. Chin, Tinh Nguyen
celerating the photodegradation of polymeric materials is of great interest in weathering research. One way of achieving acceleration is by exposing polymeric materials to a high radiant flux, but questions have arisen as to whether high radiant flux

Refractive Index Study of Al x Ga 1-x N Films Grown on Sapphire Substrates

September 1, 2003
Author(s)
Norman Sanford, Larry Robins, Albert Davydov, Alexander J. Shapiro, Denis V. Tsvetkov, Vladimir A. Dmitriev, Stacia Keller, Umesh Mishra, Steven P. DenBaars
A prism coupling method was used to measure the ordinary (italic}n o) and extraordinary (italic}n e) refractive indices of Al xGa 1-xN films, grown by hydride vapor phase epitaxy (HVPE) and metalorganic chemical vapor deposition (MOCVD) on sapphire, at

Response of a Silicon Photodiode to Pulsed Radiation

September 1, 2003
Author(s)
Robert E. Vest, Steven E. Grantham
Both the integrated-charge and peak-voltage responsivity of a 1 cm2 Si photodiode optimized for the extreme ultraviolet have been measured with 532 nm wavelength pulsed radiation. The peak power of the optical pulse is varied from 35 mW to 24 kW with a
Displaying 40626 - 40650 of 73963
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