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Displaying 36951 - 36975 of 74045

Surface Anisotropy of Permalloy in NM/NiFe/NM Multilayers

May 1, 2005

Author(s)

J O. Rantschler, P J. Chen, Anthony S. Arrott, Robert D. McMichael, William F. Egelhoff Jr., Brian B. Maranville

We have measured surface anisotropy in Permalloy (Py) deposited between two layers of normal metal (NM = Ag, Cu, or Ta) by determining the total perpendicular anisotropy using both the frequency and angular dependence of ferromagnetic resonance

Synchrotron Beamline for Extreme-Ultraviolet Multilayer Mirror Endurance Testing

May 1, 2005

Author(s)

Charles S. Tarrio, Steven E. Grantham

Systems Engineering in the Product Lifecycle

May 1, 2005

Author(s)

Conrad E. Bock

This article introduces basic elements of systems engineering that are useful in managing the product lifecycle, as expressed in an extension to the Unified Modeling Language. Models are described for product requirements in textual and computable form

Temperature, Wavelength, and Polarization Dependent Time Resolved Optical Spectroscopy of Half-Metallic CrO 2

May 1, 2005

Author(s)

H Huang, K A. Seu, A C. Reilly, Y Kadmon, William F. Egelhoff Jr.

Chromium dioxide (CrO2) is an important transition metal oxide due to its half-metallic behavior. Recent investigation has measured a spin polarization at the Fermi surface of 0.96, which is the highest among all the discovered half-metals. Since CrO2 is

The Dielectric Permittivity of Saturated Liquid Carbon Dioxide and Propane Measured Using Cross Capacitors

May 1, 2005

Author(s)

E May, Michael R. Moldover, James W. Schmidt

The relative dielectric permittivities er of saturated liquid carbon dioxide (CO2) and propane (C3H8) were measured using well-characterized cross capacitors in the range 260 K T 300 K. We calculated the molar polarizability sat (er -1)/[(er + 2)rsat] of

Thermodynamic Control of Germanium Quantum Dot Growth on Silicon

May 1, 2005

Author(s)

Richard J. Wagner, E Gulari

Strained epitaxial growth of Ge on Si(001) produces self-assembled, nanometer scale islands, or quantum dots. We study this growth by atomistic simulation, computing the energy of island structures to determine when and how islanding occurs. The

Toward an Architectural Framework to Improve Accountability in the Use of Electronic Records

May 1, 2005

Author(s)

Gordon E. Lyon, Alan Mink, R E. Van dyck

Sensitive electronic record systems (ERSs) raise questions about their proper use. Insider-threat involves hidden, unknown and unanticipated activities that constitute unacceptable use of an ERS, even while operating within individual access privileges

Toward Computer-Aided Conceptual Design of Mechatronic Devices with Multiple Interaction-States

May 1, 2005

Author(s)

Chong Xu, Satyandra K. Gupta, Z Yao, Michael Gruninger, Ram D. Sriram

In multiple interaction-state mechatronic devices the interactions between elements of use-environment and elements of the device can have different qualitative structures depending upon the modes of device operation and the states of the use-environment

Unbiased Estimation of Linewidth Roughness

May 1, 2005

Author(s)

John S. Villarrubia, B Bunday

Line width roughness (LWR) is usually estimated simply as three standard deviations of the line width. The effect of image noise upon this metric includes a positive nonrandom component. The metric is therefore subject to a bias or ?systematic error? that

Uncertainty in Reference Values for the Charpy V-notch Verification Program

May 1, 2005

Author(s)

Jolene D. Splett, Chih-Ming Wang

We present a method for computing the combined standard uncertainty for reference values used in the Charpy machine verification program administered by the National Institute of Standards and Technology. The technique is compliant with the ISO GUM and

Voluntary Voting System Guidelines

May 1, 2005

Author(s)

Mark Skall

The National Software Reference Library (NSRL) of the U.S. National Institute of Standards and Technology (NIST) collects software from various sources and publishes file profiles computed from this software (such as MD5 and SHA-1 hashes) as a Reference

Wavelet-Based Enveloping for Spindle Health Diagnosis

May 1, 2005

Author(s)

Li Zhang, Robert Gao, Kang B. Lee

A new method for identifying structural defect-induced vibration signals was developed based on the analytic wavelet transform. The advantage of this method is that it extracts defect-related impulse signal and constructs its envelope in a single step

What Are Our Customers Reading? An Analysis of the Most Frequently Used Subjects of the NIST Research Library Book Collection Based on Circulation

May 1, 2005

Author(s)

H Hassler

This report analyzes circulation data for the NIST Research Library book collection to determine the most used subjects. Data collected covers the period October 2001 through January 2004. Books are grouped into subjects using their call numbers, and

Ventilation Design and Performance in U.S. Office Buildings

April 30, 2005

Author(s)

Andrew K. Persily, J Gorfain

Building ventilation is a primary determinant of indoor air quality (IAQ) as it impacts contaminant concentrations and occupant comfort in terms of the perception of odor and irritation. However, relatively few measurements of office building ventilation

Measurement of the 199 Hg + 5d 9 6s 2 2 d5/2 Electric Quadrupole Moment and a Constraint on the Quadrupole Shift

April 29, 2005

Author(s)

Windell Oskay, Wayne M. Itano, James C. Bergquist

The electric quadrupole moment of the 199Hg + 5d 96s 2 2 d5/2 state is measured to be (D, 5/2) = -2.98(8) × 10 -40 C m 2. The value was determined by measuring the frequency of the 199Hg + 5d 106s 2S 1/2 – 5d 96s 2 2 d5/2 optical clock transition for

Catalysis by homo- and heteronuclear polymetallic systems;palladium giant cluster catalysis; stoichiometric CO2 reduction; reductive dehydration of alcohols

April 28, 2005

Author(s)

Anzor I. Mikaia, II Moiseev, AE Gekhman, Mark Tsodikov, Kugel Kugel, FA Yandieva, Leonid S. Glebov, George A. Kliger, Vladimir G. Zaikin, Yu Maksimov, D Kochubey, V Kriventsov, V Mordovin, JA Navio

Data Analysis Considerations in Probing Single Quantum Dot Fluorescence Intermittency

April 28, 2005

Author(s)

J R. Krogmeier, Jeeseong C. Hwang

The fluorescence intermittency of single, bare, CdSe/ZnS quantum dots were probed using single molecule confocal microscopy and found to demonstrate power law kinetics. Various threshold values and line fitting parameters are employed in the data analysis

Development of Bioreactor for In Situ Optical Imaging

April 27, 2005

Author(s)

J S. Stephens, James A. Cooper, Joy P. Dunkers

Importance of Display Metrology in a Competitive World

April 26, 2005

Author(s)

Edward F. Kelley

How do contrast, brightness, viewing angle, and other parameters affect the quality of a display? Do the specifications always tell you what you want to know? Is specsmanship a problem? Why is a solid bedrock of display metrology important for the highly

Pump-probe Faraday rotation magnetometer using two diode lasers

April 26, 2005

Author(s)

Forrest T. Charnock, Radek Lopusnik, Thomas J. Silva

A time-resolved Faraday rotation magnetometer using externally triggered pulsed diode lasers is described. This device permits measurement of the dynamic properties of polarized electronic spins in semiconductors. A non- equilibrium spin polarization is

X-ray absorption spectroscopy to probe surface composition and surface deprotection in photoresist films

April 26, 2005

Author(s)

J L. Lenhart, Daniel A. Fischer, S Sambasivan, Eric K. Lin, R L. Jones, Christopher Soles, Weida Wu, D L. Goldfarb, M Angelopoulos

Cryptographic Algorithms and Key Sizes for Personal Identity Verification

April 25, 2005

Author(s)

William T. Polk, Donna F. Dodson, William E. Burr

[Superseded by SP 800-78-1 (August 2007): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51215] The Homeland Security Presidential Directive (HSPD) 12 mandated the creation of new standards for interoperable identity credentials for physical

FS-TST 2.0: Forensic Software Testing Support Tools ? Part A ? Test Plan, Test Design Specifications, and Test Case Specifications

April 25, 2005

Author(s)

Paul E. Black

This NIST Internal Report deals with Release 2.0 of a software package, Forensic Software Testing Support Tools (FS-TST 2.0), developed to aid the testing of disk imaging tools typically used in forensic investigations. The package includes programs that

FS-TST 2.0: Forensic Software Testing Support Tools ? Part B? Test Summary Report

April 25, 2005

Author(s)

Paul E. Black

FS-TST 2.0: Forensic Software Testing Support Tools Part A Test Plan, Test Design Specifications, and Test Case Specifications

April 25, 2005

Author(s)

Paul E. Black

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