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NIST Authors in Bold

Displaying 36926 - 36950 of 74045

IPv6: Hope, Hype, and (Red) Herrings

May 1, 2005
Author(s)
Douglas C. Montgomery
We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric systems on a population approaching 1,000 individuals. Majority of prior studies of multimodal

Magnetic Normal Modes of Nanoelements

May 1, 2005
Author(s)
Robert D. McMichael, Mark D. Stiles
Micromagnetic calculations are used to determine the eigenfrequencies and precession patterns of some of the lowest-frequency magnetic normal modes of submicron patterned elements. For a Permalloy-like ellipse, 350 nm 160 nm 5 nm thick in zero field, the

Measuring Internal Geometry of Fiber Ferrules

May 1, 2005
Author(s)
Balasubramanian Muralikrishnan, Jack A. Stone Jr., John R. Stoup
The focus of this paper is on the metrology of microstructures. Traditional Coordinate Measuring Machines (CMM) are limited to measuring holes of 300 m diameter. Smaller features and holes require thinner styli & novel probing technologies that can

Micro-Feature Metrology

May 1, 2005
Author(s)
Bala Muralikrishnan, Jack A. Stone Jr., John R. Stoup
This presentation focuses on three aspects of micro-feature metrology novel applications that drive research and commercialization, capabilities and limitations of existing sensors and techniques, and finally a summary of recent research including ongoing

Mitochondrial DNA as a cancer biomarker

May 1, 2005
Author(s)
J P. Jakupciak, W. Wang, Maura E. Markowitz, D Ally, Michael D. Coble, Sudhir Srivastava, A Maitra, Peter E. Barker, David Sidransky, Catherine D. O'Connell

Monte Carlo Strategies for Simulations of Electron Backscattering from Surfaces

May 1, 2005
Author(s)
Aleksander Jablonski, Cedric J. Powell, S Tanuma
Reliable algorithms for simulation of electron trajectories in solids are needed for quantification of Auger electron spectroscopy, particularly for determination of the backscattering factor (BF). The computational schemes for this purpose should be

Next Generation Simulation-based Design Technologies for Electronics Product Realization

May 1, 2005
Author(s)
Manas Bajaj, Dirk Zwemer, Russell Peak, Mike Dickerson, Thomas Thurman, Kevin G. Brady, John V. Messina
The realm of electronics product realization is marked by an extremely fast-paced market, stringent demands for product reliability and high importance to innovative design. Further, the time-to-market and the cost-to-realize play a critical role for

Origin of Exchange Decoupling Effects in High-Coercivity Air-Annealed CoPd Multilayers

May 1, 2005
Author(s)
William F. Egelhoff Jr., Robert McMichael, J Mallett, Alexander J. Shapiro, Cedric J. Powell, John E. Bonevich, J H. Judy, J H. Thomas, Erik B. Svedberg
We have achieved excellent exchange decoupling of grains in CoPd multilayers by annealing in air at 300 C. Samples exhibit a slope in the hysteresis loop close to 1.0, nucleation fields as large as 1.1 T, and coercivities as large as 1.6 T. These are among

Propagation and Detection of Radio Signals Before, During, and After the Implosion of a 13-Story Apartment Building

May 1, 2005
Author(s)
Christopher L. Holloway, Galen H. Koepke, Dennis G. Camell, Catherine A. Remley, Dylan F. Williams, Susan A. Schima, Seturnino Canales, Douglas T. Tamura
In this report we investigate communications problems faced by emergency responders (firefighters and police) in disaster situations (i.e., collapsed buildings). A fundamental challenge to communications into large building structures is the strong

PSL: A Semantic Domain for Flow Models

May 1, 2005
Author(s)
Conrad Bock, Michael Gruninger
Flow models underlie popular programming languages and many graphical behavior specification tools. However, their semantics is typically ambiguous, causing miscommunication between modelers and unexpected implementation results. This article introduces a

Results From the NIST 2004 DNA Quantitation Study

May 1, 2005
Author(s)
Margaret C. Kline, David L. Duewer, Janette W. Redman, John M. Butler
For optimal DNA Short Tandem Repeat (STR) typing results, the DNA concentration ([DNA]) of the sample must be accurately determined prior to the polymerase chain reaction (PCR) amplification step in the typing process. In early 2004, the National Institute

Second Primages on n-bit Hash Functions for Much Less than 2n Work

May 1, 2005
Author(s)
John M. Kelsey, B Schneier
We expand a previous result of Dean[Dea99] to provide a second preimage attack on all n-bit iterated hash functions with Damgard-Merkle strengthening and n-bit intermediate states, allowing a second preimage to be found for a 2k-message-block message with

Storage Conditions for High-Accuracy Composition Standards of AlGaAs

May 1, 2005
Author(s)
Kristine A. Bertness, Alexana Roshko, S. E. Asher, Craig L. Perkins
AlGaAs epitaxial films were stored under different environmental conditions and the resulting surface oxidation and contamination variations measured using several analytical techniques. Auger depth profiles confirmed that oxidation and carbon
Displaying 36926 - 36950 of 74045
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