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NIST Authors in Bold

Displaying 16701 - 16725 of 73868

Rolled-Up Nanoporous Membranes by Nanoimprint Lithography and Strain Engineering

April 7, 2015
Author(s)
Jaehyun Park, ChangKyu Yoon, Qianru Jin, Lei Chen, David . Gracias
It is extremely challenging to enable nanoscale patterning in three dimensional (3D) curved geometries using conventional nanolithographic approaches. In this paper, we describe a highly parallel approach that combines nanoimprint lithography (NIL) and

Angular dependence of spin-orbit spin-transfer torques

April 6, 2015
Author(s)
Ki-Sueng Lee, Dongwook Go, Aurelien Manchon, Paul M. Haney, Mark D. Stiles, Hyun-Woo Lee, Kyung Jin Lee
In ferromagnet/heavy metal bilayers, an in-plane current gives rise to spin-orbit spin transfer torques. For two-dimensional free-electron and tight-binding models with Rashba spin-orbit coupling, these torques acquire nontrivial dependence on the

Building a Spring-Transport Mechanism for Spinning Rotor Gauges

April 3, 2015
Author(s)
James A. Fedchak, Julia K. Scherschligt, Makfir Sefa, Nick Phandinh
Spinning rotor gauges (SRGs) are widely used as transfer standards in inter-laboratory comparisons and as secondary standards by calibration laboratories. In both of these applications, it is necessary to ship the SRG for calibration, often internationally

ACT-R Modeling of Password Entry Errors

April 2, 2015
Author(s)
Kristen Greene, Franklin Tamborello
Validated predictive models of human error for password-related tasks could better inform password requirements for both government and civilian systems. Here, we build upon prior modeling work focused on disentangling the source of password entry errors

Analysis of VAES3 (FF2)

April 2, 2015
Author(s)
Morris J. Dworkin, Ray A. Perlner
The National Institute of Standards and Technology (NIST) specified three methods for format-preserving encryption (FPE) in Draft NIST Special Publication (SP) 800-38G, which was released for public comment in July, 2013. Each method was a mode of

Report on the FG 2015 Video Person Recognition Evaluation

April 2, 2015
Author(s)
P J. Phillips, J. R. Beveridge, Hao Zhang, Bruce A. Draper, Patrick J. Flynn, Zhenhua Feng, Patrik Huber, Josef Kittler, Zhiwu Huang, Shaoxin Li, Yan Li, Meina Kan, Ruiping Wang, Shiguang Shan, Xilin Chen, Haoxiang Li, Hua Gang, Vitomir Struc, Janez Krizaj, Changxing Ding, Dacheng Tao

Shape-changing magnetic assemblies as high-sensitivity NMR-readable nanoprobes

April 2, 2015
Author(s)
Gary Zabow, Stephen Dodd, Alan Koretsky
Fluorescent and plasmonic probes have proven invaluable in the life sciences, but function poorly in optically inaccessible regions. Here we present radio-frequency addressable analogs that afford sensing opportunities similar to those of fluorescent

A Data-Driven Predictor of the Discharge Coefficient of Orifice Plates

April 1, 2015
Author(s)
James R. Whetstone, Antonio M. Possolo
We have developed a new functional relationship to predict the value of the discharge coefficient of an orifice plate used to measure volumetric flow rate in cylindrical pipes, as a function of the beta ratio of the orifice and pipe combination, and of the

An Areal Isotropic Spline Filter for Surface Metrology

April 1, 2015
Author(s)
Hao H. Zhang, D Ott, Wei Chu
This paper deals with the application of the spline filter as an areal filter for surface metrology. A profile (2D) filter is often applied in orthogonal directions to yield an areal filter for a three-dimensional (3D) measurement. Unlike the Gaussian

Biological Evidence Preservation: Considerations for Policy Makers:

April 1, 2015
Author(s)
Shannan Williams, Melissa K. Taylor, Susan M. Ballou, Mark D. Stolorow, Margaret C. Kline, Phylis S. Bamberger, Larry Brown, Rebecca Brown, Yvette Burney, Dennis Davenport, Lindsay DePalma, Ted Hunt, Cynthia E. Jones, Ralph Keaton, William Kiley, Joseph Latta, Karen Thiessen, Gerry LaPorte, Linda E. Ledray, Randy Nagy, Brian Ostrom, Linda Schwind, Stephanie Stoiloff

Calibration Considerations for Mission Success

April 1, 2015
Author(s)
Raghu N. Kacker
As more and more data from different sensors, either on the same or from different platforms, are used together for studies of changes in the earth’s atmosphere and surface properties, Department of Defense applications, or for the many other applications

Cavity ring-down spectrometer for high-fidelity molecular absorption measurements

April 1, 2015
Author(s)
Vincent T. Sironneau, Hong Lin, Zachary Reed, Joseph T. Hodges
We present a cavity ring-down spectrometer which was developed for near-infrared measurements of laser absorption by atmospheric greenhouse gases. This system has several important attributes that make it possible to conduct broad spectral surveys and to

Compact Nano-Mechanical Plasmonic Phase Modulators

April 1, 2015
Author(s)
Brian S. Dennis, Michael Haftel, David Czaplewski, Daniel Lopez, Girsh Blumberg, Vladimir Aksyuk
The miniaturization of photonic devices is fundamentally limited by the index of refraction of the constituent materials if light is confined in dielectric nanostructures. By coupling electromagnetic fields to metal's free electrons plasmonic devices

Development of Urine Standard Reference Materials for Metabolites of Organic Chemicals Including Polycyclic Aromatic Hydrocarbons, Phthalates, Phenols, Parabens, and Volatile Organic Compounds

April 1, 2015
Author(s)
Michele M. Schantz, Bruce A. Benner Jr., Nathanael A. Heckert, Lane C. Sander, Katherine E. Sharpless, Stacy S. Schuur, Stephen A. Wise
Two new Standard Reference Materials (SRMs), SRM 3672 Organic Contaminants in Smokers’ Urine (Frozen) and SRM 3673 Organic Contaminants in Non-Smokers’ Urine (Frozen), have been developed in support of studies for assessment of human exposure to select
Displaying 16701 - 16725 of 73868