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Displaying 36651 - 36675 of 74045

High resolution spectroscopy with a femtosecond laser frequency comb

July 1, 2005
Author(s)
Vladislav Gerginov, C E. Tanner, Scott Diddams, A Bartels, Leo W. Hollberg
The output of a mode-locked femtosecond-laser is used for high resolution single-photon spectroscopy of ^133}Cs in an atomic beam. The laser is referenced directly to a stable RF signal from the NIST time-scale. By changing the laser's repetition rate, the

Improved Dental Composites Utilizing Dibenzylidene Sorbitol Networks

July 1, 2005
Author(s)
Elizabeth Wilder, Joseph M. Antonucci
Dibenzylidene sorbitol (DBS) is a sugar derivative that is capable of self-organizing into a 3D nanofibrillar network at relatively low concentrations in a wide variety of organic solvents and polymer melts. This research was aimed at determining the

Integrity Checking of DNS Zone File Data Using XSLT

July 1, 2005
Author(s)
Ramaswamy Chandramouli, Scott W. Rose
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Java

July 1, 2005
Author(s)
Ronald F. Boisvert, Roldan Pozo
Our goal here is to provide to non-Java programmers some guidance as to whether Java might be appropriate for scientific applications. We will discuss some of Java's features which promote the safety, reliability, and portability, and then briefly address

Macrospin Models of Spin Transfer Dynamics

July 1, 2005
Author(s)
J Xiao, A Zangwill, Mark D. Stiles
The current-induced magnetization dynamics of a spin valve are studied using a macrospin (single-domain) approximation and numerical solutions of a generalized Landau-Lifshitz-Gilbert equation. For the purpose of quantitative comparison to experiment [S. I

Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry Interlaboratory Comparison of Mixtures of Polystyrene With Different End Groups: Statistical Analysis of Mass Fractions and Mass Moments

July 1, 2005
Author(s)
Charles M. Guttman, S Wetzel, Kathleen M. Flynn, B M. Fanconi, David L. VanderHart, William E. Wallace
A matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) interlaboratory comparison was conducted on mixtures of synthetic polymers having the same repeat unit and closely matching molecular mass distributions but with

On the Growth and Form of Spherulites

July 1, 2005
Author(s)
L Granasy, T Pusztai, G -. Tegze, James A. Warren, Jack F. Douglas
Many structural materials (metal alloys, polymers, minerals, etc.) are formed by quenching liquids to form crystalline solids. This highly non-equilibrium process leads to an extraordinary variety of polycrystalline growth patterns that are broadly termed

Prototype Implementation Based on the Machine Shop Information Model

July 1, 2005
Author(s)
Yung-Tsun Lee, Yan Luo, Guodong Shao
Interoperability between manufacturing software applications and simulation is currently extremely limited. A machine shop information model has been developed at the National Institute of Standards and Technology (NIST) as a part of system

Semiconductor Microelectronics and Naoelectronics Programs

July 1, 2005
Author(s)
Stephen Knight, Joaquin (. Martinez, Michele L. Buckley
The microelectronics industry supplies vital components to the electronics industry and to the U.S. economy, enabling rapid improvements in productivity and in new high technology growth industries such as electronic commerce and biotechnology. The

Smart Cards and Mobile Device Authentication: an Overview and Implementation

July 1, 2005
Author(s)
Wayne Jansen, Serban I. Gavrila, Clement Seveillac, Vladimir Korolev
The use of mobile handheld devices within the workplace is expanding rapidly. These devices are no longer viewed as coveted gadgets for early technology adopters, but have instead become indispensable tools that offer competitive business advantages for
Displaying 36651 - 36675 of 74045
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