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Displaying 24351 - 24375 of 73721

Note: Detection of a single cobalt microparticle with a microfabricated atomic magnetometer

August 23, 2011
Author(s)
Svenja A. Knappe, D. Maser, S. Pandey, H. Ring, Micah P. Ledbetter, John E. Kitching, Dimitry Budkerl
Detection of the magnetic signal of a single, 2 {um}m cobalt microparticle using an atomic magnetometer based on a microfabricated vapor cell is presented. These results represent an improvement by a factor of 10 in terms of the detected magnetic moment

Helical Magnetic Order in MnSi Thin Films

August 22, 2011
Author(s)
E. A. Karhu, S. Kahwaji, M. D. Robertson, H. Fritzche, Brian Kirby, Charles Majkrzak, T. L. Monchesky
We present a study of the magnetic structure of crystalline MnSi(111) thin films by molecular beam epitaxy. A combination of polarized neutron diffraction (PNR) and SQUID magnetometry show that the films have helical magnetic order with a pitch vector Q

The Residual Resistance Ratio of High-Purity Platinum

August 22, 2011
Author(s)
Weston L. Tew, William E. Murdock, Michal J. Chojnacky, Dean C. Ripple
High-purity platinum wire is produced for use in both Standard Platinum Resistance Thermometers (SPRTs) and type S and type R thermocouples. The resistance ratio W(T90) and thermoelectric characteristics of the wire are a function of chemical purity and

Trust-Based Multi-Agent Filtering for Increased Smart Grid Security

August 22, 2011
Author(s)
Ion Matei, John S. Baras, Vijay Srinivasan
We address the problem of state estimation of the power system for the Smart Grid.We assume that the monitoring of the electrical grid is done by a network of agents with both computing and communication capabilities. We propose a security mechanism aimed

Alternative Cooling Technology Options

August 21, 2011
Author(s)
J S. Brown, Piotr A. Domanski
This paper considers the alternative cooling technologies studied by Fisher et al. (1994) and assesses their current potential to compete with or to replace vapor compression refrigeration technology for space cooling and near-room temperature

A Prototype IEEE 1451.4 Smart Transducer Interface for Sensors and Actuators

August 19, 2011
Author(s)
Yuyin Song, David M. Westbrook, Kang B. Lee
Analog transducers (sensors or actuators) are widely used in industry. The Institute of Electrical and Electronics Engineers (IEEE) 1451.4 standard defines a mixed-mode communication protocol and the Transducer Electronic Data Sheet (TEDS) formats for

Catalyst-free GaN nanowire growth and optoelectronic characterization

August 19, 2011
Author(s)
Kristine A. Bertness, Norman A. Sanford, John B. Schlager
We discuss the present state-of-the-art concerning the growth mechanism, optical luminescence and electrical properties for GaN nanowires grown with catalyst-free molecular beam epitaxy. These nanowires are essentially defect-free and display long

Common Platform Enumeration: Applicability Language Specification Version 2.3

August 19, 2011
Author(s)
David A. Waltermire, Paul R. Cichonski, Karen Scarfone
This report defines the Common Platform Enumeration (CPE) Applicability Language version 2.3 specification. The CPE Applicability Language specification is part of a stack of CPE specifications that support a variety of use cases relating to IT product

Common Platform Enumeration: Dictionary Specification Version 2.3

August 19, 2011
Author(s)
Paul R. Cichonski, David A. Waltermire, Karen Scarfone
This report defines the Common Platform Enumeration (CPE) Dictionary version 2.3 specification. The CPE Dictionary Specification is a part of a stack of CPE specifications that support a variety of use cases relating to IT product description and naming

Common Platform Enumeration: Name Matching Specification Version 2.3

August 19, 2011
Author(s)
Mary Parmelee, Harold Booth, David A. Waltermire, Karen Scarfone
This report defines the Common Platform Enumeration (CPE) Name Matching version 2.3 specification. The CPE Name Matching specification is part of a stack of CPE specifications that support a variety of use cases relating to IT product description and

Common Platform Enumeration: Naming Specification Version 2.3

August 19, 2011
Author(s)
Brant Cheikes, David A. Waltermire, Karen Scarfone
This report defines the Common Platform Enumeration (CPE) Naming version 2.3 specification. The CPE Naming specification is a part of a stack of CPE specifications that support a variety of use cases relating to IT product description and naming. The CPE

Accurate Nanometer-Scale Imaging and Measurements with SEM

August 18, 2011
Author(s)
Bradley N. Damazo, Bin Ming, Premsagar P. Kavuri, Andras Vladar, Michael T. Postek
Scanning electron microscopes (SEMs) are incredibly versatile instruments for millimeter to nanometer scale imaging and measurements of size and shape. New methods to improve repeatability and accuracy have been implemented on the so-called Reference SEMs

An Empirical Study of a Vulnerability Metric Aggregation Method

August 18, 2011
Author(s)
Su Zhang, Xinming Ou, Anoop Singhal, John Homer
Quantifying security risk is an important and yet difficult task in enterprise network risk management, critical for proactive mission assurance. Even though metrics exist for individual vulnerabilities, there is currently no standard way of aggregating

Determination of Fat-Soluble Vitamins and Carotenoids in Standard Reference Material 3280 Multivitamin/Multielement Tablets by Liquid Chromatography with Absorbance Detection

August 17, 2011
Author(s)
Jeanice M. Brown Thomas, Katherine E. Sharpless, Catherine A. Rimmer, James H. Yen
The concentrations of selected fat-soluble vitamins and carotenoids in Standard Reference Material (SRM) 3280 Multivitamin/Multielement Tablets have been determined by two independent liquid chromatographic methods with measurements performed by the

Dietary Supplement Laboratory Quality Assurance Program: The First Five Exercises

August 17, 2011
Author(s)
Melissa M. Phillips, Catherine A. Rimmer, Laura J. Wood, Katrice A. Lippa, Katherine E. Sharpless, David L. Duewer, Lane C. Sander, J. M. Betz
The National Institute of Standards and Technology (NIST) has established a Dietary Supplement Quality Assurance Program (DSQAP) in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS). Program participants measure
Displaying 24351 - 24375 of 73721
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