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Search Publications

NIST Authors in Bold

Displaying 5376 - 5400 of 7113

Building Blocks for a Scalable Quantum Information Processor Based On Trapped Ions

January 1, 2003
Author(s)
Dietrich G. Leibfried, Murray D. Barrett, A Ben-kish, Joseph W. Britton, J Chiaverini, B. L. DeMarco, Wayne M. Itano, Branislav M. Jelenkovic, John D. Jost, Christopher Langer, D Lucas, V Meyer, Till P. Rosenband, M A. Rowe, T Schaetz, David J. Wineland
We describe the underlying concept and experimental demonstration of the basic building blocks of a scalable quantum information processor architecture using trapped ion-qubits. The trap structure is divided into many subregions. In each several ion-qubits

A Privilege Management Scheme for Mobile Agent Systems

August 1, 2002
Author(s)
Wayne Jansen
In this paper, we describe a general method for controlling the behavior of mobile agent-system entities through allocation of privileges. Privileges refer to policy rules that govern the access and use of computational resources and services. The scheme

A Facility for Nanoscience Research: An Overview

July 1, 2002
Author(s)
Joseph A. Stroscio, E Hudson, Steven R. Blankenship, Robert Celotta, Aaron P. Fein
We describe the development of an experimental system, consisting of a low temperature scanning tunneling microscope coupled to UHV tip and sample preparation chambers, with the goal of providing new measurement capabilities for the study of quantum and

BFRL Publications, 2000, Volumes 1 and 2

May 1, 2001
Author(s)
Star R. Burgess, Glenn P. Forney, Nora H. Jason
BFRL Publications, 2000, contains publications produced by or for BFRL staff during 2000. Volume 1 contains Building Research Publications and Volume 2 contains Fire Research publications. We also have included software for solving problems related to

Coercivity in Exchange-Bias Bilayers

January 18, 2001
Author(s)
Mark D. Stiles, Robert D. McMichael
Simulations of magnetic reversal in polycrystalline exchange-bias bilayers exhibit two contributions to the enhanced coercivity found in exchange-bias systems, one due to inhomogeneous reversal and and the other to irreversible transitions in the

Suppression of Low Strain Rate Flames by an Agent (NISTIR 6588)

November 1, 2000
Author(s)
Anthony P. Hamins, Matthew F. Bundy, I K. Puri
The structure and suppression of low strain rate methane-air nonpremixed flames were investigated experimentally and computationally. Measurements of the critical suppression conditions were conducted using N2, CO2, and CF3Br added to the fuel or oxidizer

Privilege Management of Mobile Agents

October 1, 2000
Author(s)
Wayne Jansen, Athanasios T. Karygiannis
Most mobile agent systems use internal data structures within an agent to control and specify its security requirements and properties. These structures typically contain authorization information regarding access to computational resources on distributed

Entanglement of Four Particles

January 1, 2000
Author(s)
C A. Sackett, D Kielpinski, B E. King, Christopher Langer, V Meyer, C J. Myatt, M A. Rowe, Q A. Turchette, Wayne M. Itano, David J. Wineland, C Monroe
Quantum mechanics allows for many-particle wavefunctions that cannot be factorized into a product of single-particle wavefunctions, even when the constituent particles are entirely distinct. Such ‘entangled’ states explicitly demonstrate the non-local

NIST Random Profile Roughness Specimens and Standard Bullets

January 1, 2000
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Michael L. McGlauflin, Eric P. Whitenton, Christopher J. Evans
Based on the numerical controlled (NC) diamond turning process used previously for manufacturing random profile roughness specimens, two prototype standard bullets were developed at the National Institute of Standards and Technology (NIST). These standard

NIST Random Profile Roughness Specimens and Standard Bullets

January 1, 2000
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Christopher J. Evans, Michael L. McGlauflin, Eric P. Whitenton, Robert A. Clary
Based on the numerical controlled (NC) diamond turning process used previously for manufacturing random profile roughness specimens, two prototype standard bullets were developed at the National Institute of Standards and Technology (NIST). These standard

SEM/X-Ray Imaging of Cement-Based Materials

August 1, 1999
Author(s)
Dale P. Bentz, Paul E. Stutzman, C Haecker, S Remond
Scanning electron microscopy and X-ray imaging techniques have been developed for imaging the complex microstructure of cement-based materials such as cement powder and fly ash. By combining the information available in the backscattered electron and

Microscopic Image Analysis of Defect Areas in Optical Disks

July 1, 1999
Author(s)
P L'Hostis, Frederick R. Byers, Fernando L. Podio, Xiao Tang
This paper presents techniques developed in the Information Technology Laboratory of the US National Institute of Standards and Technology (NIST/ITL) for enabling microscopic image analysis of optical data storage media such as optical discs. These non

Data Representation and Handling for Large Image Browsing

October 5, 1998
Author(s)
O E. Kia, A A. Schaff, J J. Sauvola
In this paper we present results of work done on large image browsing. Advances in compression and transmission have allowed efficient usage of storage and transmission resources; however, much work needs to be done in order to integrate such concepts in
Displaying 5376 - 5400 of 7113
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