U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 28576 - 28600 of 73830

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

Economic Analysis of Egress and Life Safety Costs

April 27, 2009
Author(s)
Robert E. Chapman, Allison L. Huang, David T. Butry
In 2007, the latest year for which construction data are available, the value of construction put in place was $1.1 trillion. Statistics on the total cost of fire in the U.S. are published by the National Fire Protection Association (NFPA). Of particular

Three-Magon Splitting and Confluence Processes for Magnetostatic Backward Volume-Spin-Wave Excitations in Yttrium Iron Garnet Films

April 27, 2009
Author(s)
Pavel Kabos, Cesar O. Ordonez-Romero, Boris A. Kalinikos, Pavol Krivosik, Wei Tong, Carl E. Patton
Brillouin light scattering (BLS) has been used to observe and confirm the existence of nonlinear three magnon splitting and confluence processes for propagating spin waves in the magnetostatic backward volume wave (MSBVW) configuration. Wave vector and

TRC Thermodynamic Tables, Hydrocarbon Supplement H-137

April 27, 2009
Author(s)
Michael D. Frenkel
1. Table 23-14-2-(33.23500)-d: Pages d-8948.0 and d-8948.1 New table for cyclohexyl phenyl sulfides containing density for the condensed phase at one bar, or at equilibrium vapor pressure above the boiling point. 2. Table 23-2-(3.53040)-db: Pages db-2358.0

Random Telegraph Noise in Highly Scaled nMOSFETs

April 26, 2009
Author(s)
Jason P. Campbell, Jin Qin, Kin P. Cheung, Liangchun (. Yu, John S. Suehle, A Oates, Kuang Sheng
Recently 1/f and random telegraph noise (RTN) studies have been used to infer information about bulk dielectric defects' spatial and energetic distributions. These analyses rely on a noise framework which involves charge exchange between the inversion

Expanding Environmental Information Management: Meeting Future Requirements

April 25, 2009
Author(s)
John V. Messina, Eric D. Simmon
The environmental impact of product manufacturing, use, and disposal has become a worldwide concern. Laws and regulations designed to protect human health and the environment are being established throughout the global community. In addition to regulatory

Equilibrium Polymerization Models of Reentrant Self-Assembly

April 24, 2009
Author(s)
Jacek Dudowicz, Jack F. Douglas, Karl Freed
As is well known, liquid-liquid phase separation can occur either upon heating or cooling, corresponding to lower and upper critical solution phase boundaries, respectively. Likewise, self-assembly transitions from a monomeric state to an organized

Evaluating the locality of intrinsic precession damping in transition metals

April 24, 2009
Author(s)
Keith Gilmore, Mark D. Stiles
The Landau-Lifshitz-Gilbert damping parameter is typically assumed to be a local quantity, independent of the magnetic configuration. To test the validity of this assumption we calculate the precession damping rate of small amplitude non-uniform mode

From Network Microeconomics to Network Infrastructure Emergence

April 24, 2009
Author(s)
Vladimir V. Marbukh
This paper suggests that evolutionary models of network infrastructure in market economy can be derived from the underlying selfish behavior of users and providers of network services in the same way as non-equilibrium thermodynamics is derived from the

Optimized Dynamical Decoupling in a Model Quantum Memory

April 23, 2009
Author(s)
Michael J. Biercuk, Hermann Uys, Aaron Vandevender, N. Shiga, Wayne M. Itano, David J. Wineland, John J. Bollinger
We demonstrate the efficacy of optimized dynamical decoupling pulse sequences in suppressing phase errors in a model quantum memory. Our experimental system consists of a crystalline array of trapped 9Be + ions in which we drive a qubit transition at $\sim
Displaying 28576 - 28600 of 73830
Was this page helpful?