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Search Publications

NIST Authors in Bold

Displaying 30876 - 30900 of 73830

Improving Correlations with Inelastic Loss

June 6, 2008
Author(s)
James V. Porto
Correlations are one of the central features of modern condensed matter physics. They arise in systems where the behavior of any given particle in a system depends strongly on all the other particles. Such correlations are what help distinguish the

A Regional Comparison of Calibration Results for Type K Thermocouple Wire From 100 C to 1100 C

June 5, 2008
Author(s)
K Garrity, Dean C. Ripple, M Araya, C R. Cabrera, L Cordova Murillo, M E. de Vanegas, D J. Gee, Edwin Guillen, S Martinez-Martinez, Edgar Mendez-Lango, L Mussio, S G. Petkovic, K N. Quelhas, G Rangugni, O Robatto, E Von Borrries Rocha
Under the auspices of the Inter-american Metrology System (SIM), the National Institute of Standards and Technology (NIST) initiated a regional comparison for type K thermocouples from 100 deg. C to 1100 deg. C, with 11 participating countries. Each

Mixed Analog-Digital Instrumentation for Software-Defined-Radio Characterization

June 5, 2008
Author(s)
Catherine A. Remley, Nuno Carvalho, Pedro Cruz, Kevin Gard
This paper presents a new type of analog-digital mixed-domain instrument that is specially tailored for software defined radio characterization. The instrument allows the utilization of analog instruments such as vector signal analyzers and network

Proficiency Testing for Achieving Accreditation in Thermometry

June 5, 2008
Author(s)
Sally S. Bruce, Gregory F. Strouse
The establishment of traceability is an essential component of laboratory accreditation for Calibration laboratories accredited by the National Voluntary Laboratory Accreditation Program (NVLAP). Traceability requires that an unbroken chain of comparisons

An Ontological Modeling Platform

June 4, 2008
Author(s)
V.C. Liang, Conrad E. Bock, XuanFang Zha
The Ontological Modeling Platform described in this paper is a class library for extended ontological operations, to support extension of ontology languages, composition of interconnected elements, and high-level product modeling services, such as

ASTM E57 - 3D Imaging Systems

June 4, 2008
Author(s)
Geraldine S. Cheok, Alan M. Lytle, Kamel S. Saidi
As the applications for 3D imaging systems continue to grow, the need for standards to evaluate these systems has become more critical. The ASTM E57 3D Imaging committee established in 2006 was formed specifically to develop standard terminology, test

Guide to Using Programs to Estimate UV Dosage and Damage

June 3, 2008
Author(s)
Brian Dickens
The system of programs described in this paper is concerned with estimating the damage ensuing from exposure of specimens in dry and humid atmospheres to UV and visible radiation covering the solar range. Damage is monitored quantitatively by changes in IR

Pair Correlation Functions in Mixtures of Lennard-Jones Particles

June 3, 2008
Author(s)
Raymond D. Mountain, Yedhud A. Ben-Naim
The pair correlation functions for a mixture of two Lennard-Jones (LJ) particles were computed by both the Percus-Yevick equations and by molecular dynamics. The changes in the pair correlation function resulting from changes in the composition of the

Policy Specification and Enforcement for Smart ID Cards Deployment

June 3, 2008
Author(s)
Ramaswamy Chandramouli
Deployment of Smart Cards for Identity Verification requires collection of credentials and provisioning of credentials from and to heterogeneous and sometimes legacy systems. To facilitate this process, a centralized identity store called Identity

A New Microdevice for SI-Traceable Forces in Atomic Force Microscopy

June 2, 2008
Author(s)
Gregory W. Vogl, Jason J. Gorman, Gordon A. Shaw, Jon R. Pratt
A new self-excited micro-oscillator is proposed as a velocity standard for dissemination of nanoNewton-level forces that are traceable to the International System of Units (SI). The microfabricated oscillator is top-coated with magnetic thin films and

Accelerating Scientific Discovery through Computation and Visualization III. Tight-binding Wave Functions for Quantum Dots

June 2, 2008
Author(s)
James S. Sims, John G. Hagedorn, Steven G. Satterfield, Terence J. Griffin, William L. George, Howard Hung, John T. Kelso, Thomas M. Olano, Adele P. Peskin, Judith E. Terrill, Garnett W. Bryant, Jose G. Diaz
This is the third in a series of articles that describe, through examples, how the Scientific Applications and Visualization Group (SAVG) at NIST has utilized high performance parallel computing, visualization, and machine learning to accelerate scientific

Automated Combinatorial Test Methods: Beyond Pairwise Testing

June 2, 2008
Author(s)
David R. Kuhn, Raghu N. Kacker, Yu Lei
Pairwise testing has become a popular approach to software quality assurance because it often provides effective error detection at low cost. However, pairwise (2-way) coverage is not sufficient for assurance of mission-critical software. Combinatorial
Displaying 30876 - 30900 of 73830
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