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NIST Authors in Bold

Displaying 28426 - 28450 of 73697

Software Assurance Using Structured Assurance Case Models

May 1, 2009
Author(s)
Thomas R. Rhodes, Frederick E. Boland Jr., Elizabeth N. Fong, Michael J. Kass
Software assurance is an important part of the software development process to reduce risks and ensure that the software is dependable and trustworthy. Software defects and weaknesses can often lead to software errors and failures and to exploitation by

The IMS 2009 "Bonus Issue"

May 1, 2009
Author(s)
Catherine A. Remley
This is an Editorial for a special issue of IEEE Microwave Magazine devoted to the International Microwave Symposium. Kate Remley, the Editor-in-Chief, and two co-editors write about this issue.

Thermodynamics of the Hydrolysis Reactions of +--D-galactose 1-phosphate, sn-glycerol 3-phosphate, 4 nitrophenyl phosphate, phosphocreatine, and 3-phospho-D-glycerate

May 1, 2009
Author(s)
Robert N. Goldberg, Brian E. Lang, Catherine T. Lo, David J. Ross, Yadu D. Tewari
Microcalorimetry, high-performance liquid chromatography, and an enzymatic assay have been used to conduct a thermodynamic investigation of five phosphate hydrolysis reactions: α-D-galactose 1 phosphate(aq) + H2O(l) = D-galactose(aq) + orthophosphate(aq)

X-ray measurements at high-power lasers

May 1, 2009
Author(s)
Lawrence T. Hudson, C.I Szabo, Paul Indelicato, G.E. Gumberidze, G Holland, John F. Seely, Albert Henins, M Audebert, S. Bastiani-Ceccotti, E. Tabakhoff, E. Brambrink
Conversion efficiencies of laser light into K x-ray radiation are used to characterize laser-solid interactions e.g. in measurements with back-lighter targets in Inertial Confinement Fusion research or in ultra short x-ray science where ultra short laser

1310 nm Differential Phase Shift QKD System Using Superconducting Single Photon Detectors

April 30, 2009
Author(s)
Xiao Tang, Lijun Ma, Sae Woo Nam, Burm Baek, Oliver T. Slattery, Alan Mink, Hai Xu, Tiejun Chang
We have implemented a differential-phase-shift (DPS) quantum key distribution (QKD) system at 1310 nm with superconducting single photon detectors (SSPD). The timing jitter of the SSPDs is small and its dark counts are very low. 1310 nm is an ideal quantum

Directions in Security Metrics Research

April 30, 2009
Author(s)
Wayne Jansen
More than 100 years ago, Lord Kelvin insightfully observed that measurement is vital to deep knowledge and understanding in physical science. During the last few decades, researchers have made various attempts to develop measures and systems of measurement

Imaging Response of Optical Microscopes Containing Angled Micromirrors

April 30, 2009
Author(s)
Andrew J. Berglund, Matthew D. McMahon, Jabez J. McClelland, James A. Liddle
We describe the aberrations induced by introducing micromirrors into the object space of a microscope. These play a critical role in determining the accuracy of recent three-dimensional particle tracking methods based on such devices.

In-plane bias in a patterned ferromagnetic/antiferromagnetic bilayer

April 30, 2009
Author(s)
Yury P. Kabanov, Valerian I. Nikitenko, Oleg A. Tikhomirov, William F. Egelhoff Jr., Alexander J. Shapiro, Robert D. Shull
Exchange bias in bi- and multilayer magnetic systems is usually ascribed to the existence of transient magnetic structures at the interfaces between adjacent layers. Here, we report the observation of a similar phenomenon in the lateral direction

Practical long-distance quantum key distribution system using decoy levels

April 30, 2009
Author(s)
Danna Rosenberg, Charles G. Peterson, Jim A. Harrington, Patrick R. Rice, N. Dallman, K. T. Tyagi, K. P. McCabe, Sae Woo Nam, Burm Baek, Robert Hadfield, Richard J. Hughes, Jane E. Nordholt
Quantum key distribution (QKD) has the potential for widespread real-world applications, but no secure long-distance experiment has demonstrated the truly practical operation needed to move QKD from the laboratory to the real world due largely to

Prediction of Feshbach resonances from three input parameters

April 30, 2009
Author(s)
Thomas M. Hanna, Eite Tiesinga, Paul S. Julienne
We have developed a model of Feshbach resonances in gases of ultracold alkali metal atoms using the ideas of quantum defect theory. Our model requires just three parameters - the singlet and triplet scattering lengths, and the coefficient of the long range

Probabilistic Call Admission Control Algorithm for WLAN in a Heterogeneous Wireless Environment

April 30, 2009
Author(s)
Nicolas Chevrollier, David W. Griffith, Nada T. Golmie, SuKyoung Lee, Kyungsoo Kim, Hong Kunho, YoonHyuk Kim
In an integrated WLAN and cellular network, if all mobile users whose connections originate in the cellular network migrate to the WLAN whenever they enter the double coverage area, the WLAN will be severely congested and its users will suffer from

Programmable Instrumentation & GHz Signaling for Quantum Communication Systems

April 30, 2009
Author(s)
Alan Mink, Joshua C. Bienfang, Robert J. Carpenter, Lijun Ma, Barry J. Hershman, Alessandro Restelli, Xiao Tang
We discussed custom instrumentation for high-speed single photon metrology. We focus on the difficulty of GHz data sampling and provide some techniques on how to accomplish it. We also discuss the benefits of field programmable gate arrays as the basis for

Reference Ballistic Chronograph

April 30, 2009
Author(s)
Nicholas G. Paulter Jr., Donald R. Larson
A ballistic chronograph with a measurement uncertainty of less than +/- 0.1 m/s has been designed, constructed and tested. Because of this low uncertainty, this chronograph can be used as a reference to calibrate and/or characterize the performance of

Super-Resolution Enhancement of Flash LADAR Range Data

April 30, 2009
Author(s)
Gavin Rosenbush, Tsai H. Hong, Roger D. Eastman
Flash LADAR systems are becoming increasingly popular for robotics applications. However, they generally provide a low-resolution range image because of the limited number of pixels available on the focal plane array. In this paper, the application of

Topography of epitaxial GaAs surfaces for growth

April 30, 2009
Author(s)
Susan Y. Lehman, Alexana Roshko, Richard Mirin, Kristine A. Bertness, Todd E. Harvey, Keith D. Cobry
The topography and surface roughness of (100) GaAs substrates and buffers after different preparation procedures were determined from atomic force microscopy measurements. The influence of substrate aging and chemical etching on buffers grown by molecular

An Instrumented Bioreactor for Cartilage Tissue Engineering

April 29, 2009
Author(s)
Timothy P. Quinn, Colm Flannery, Damian S. Lauria, Douglas V. Gallagher, Kristi S. Anseth
Bioreactors for in vitro growth of engineered tissue (ET) would ideally include sensors that would continuously measure the functional quality of the construct during incubation. Principles of feedback control could then be used to optimize properties of

The System Development Life Cycle (SDLC)

April 29, 2009
Author(s)
Shirley M. Radack
This bulletin summarizes the information that was disseminated by the National Institute of Standards and Technology (NIST) in Special Publication (SP) 800-64, Revision 2, Security Considerations in the System Development Life Cycle. This publication was
Displaying 28426 - 28450 of 73697
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