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NIST Authors in Bold

Displaying 22076 - 22100 of 73929

Examination of Downsampling Strategies for Converting 1000 ppi Fingerprint Imagery to 500 ppi

January 22, 2013
Author(s)
Shahram Orandi, John M. Libert, John D. Grantham, Lepley Margaret, Bruce Bandini, Kenneth Ko, Lindsay M. Petersen, Stephen S. Wood, Stephen G. Harvey
Currently the bulk of fingerprint data in operational is captured, processed and stored at 500 ppi using the WSQ compressed digital format. With the transition to 1000 ppi, some systems will unavoidably contain an overlap between 500 ppi and 1000 ppi

Flow Control in Time-Varying, Random Supply Chains

January 22, 2013
Author(s)
Ion Matei
Today�s supply chains are more and more complex. They depend on a network of independent, yet interconnected moving parts. They rely on critical infrastructures and experience a lot of time variability and randomness. Designing strategies that deal with

Physical properties of Al doped Ba hexagonal ferrite thin films

January 22, 2013
Author(s)
Harward Ian, Yan Nie, Daming Chen, Josh Baptist, Justin Shaw, Eva J. Liskova, Stefan Visnovsky, Petr Siroky, Michal Lesnak, Jaromir Pistora, Zbigniew Celinski
We developed the thin film microwave magnetic material, M-type barium hexagonal ferrite (BaM) doped with Al, for signal processing devices operating above 40 GHz with little to no applied magnetic field. Al was chosen as the dopant material because it

Survey Report for Ambulance Patient Compartment Design

January 22, 2013
Author(s)
Allison Barnard Feeney, Deogratias Kibira, Yung-Tsun T. Lee, Jennifer L. Marshall
NIST conducted a survey (Office of Management and Budget, Control No. 1090-0007) of the emergency medical services (EMS) professionals in December 2011. The objective of the survey is to aid in the development of design standards for the patient

To Predict Vibrational Spectra, Are Anharmonic Calculations Worthwhile?

January 22, 2013
Author(s)
Ruth L. Jacobsen, Karl K. Irikura, Russell D. Johnson III, Raghu N. Kacker
Anharmonic calculations using vibrational perturbation theory are known to provide near-spectroscopic accuracy when combined with high-level ab initio potential energy functions. However, performance with economical, popular electronic structure methods is

Quantum Dot Fluorescence Lifetime Engineering with DNA Origami Constructs

January 21, 2013
Author(s)
James A. Liddle, Seung-Hyeon Ko, Kan Du
The ability to organize nanostructures of disparate types and materials – such as metal nanoparticles and semiconductor quantum dots – is challenging but essential for the creation of novel materials and devices. Metal nanoparticles (NPs) have interesting

NIST Time and Frequency Bulletin

January 18, 2013
Author(s)
Petrina C. Potts
The Time and Frequency Bulletin provides information on performance of time scales and a varieth of broadcasts (and related information) to users of the NIST services.

SRM Catalog

January 18, 2013
Author(s)
Regina R. Montgomery
SRM Catalog

Advanced Distillation Curve Analysis of Marine Diesel Fuel

January 17, 2013
Author(s)
Peter Y. Hsieh, Kathryn R. Abel, Thomas J. Bruno
Ocean-going ships burn heavy fuel oil. The combustion of heavy fuel oil in marine diesel engines emits nitrogen oxides, sulfur oxides, and particulates into the air. Growing public concern over air quality has led to increased scrutiny of heavy fuel oil as

Mapping Evidence Graphs to Attack Graphs

January 17, 2013
Author(s)
Changwei Liu, Anoop Singhal, Duminda Wijesekera
Attack graphs compute potential attack paths from a system configuration and known vulnerabilities of a system. Evidence graphs model intrusion evidence and dependencies among them for forensic analysis. In this paper, we show how to map evidence graphs to

Thermal Equilibration of Samples for Neutron Scattering

January 17, 2013
Author(s)
Tobias K Herman, Julia Scherschligt, Sarah Cunegunda Parks
Temperature relaxation and equilibration of samples for neutron scattering was investigated in a selection of samples and sample cells within the range of 5-300K. A sample model was developed that relates thermal relaxation time constants to material

Gallium Nitride Nanowires for On-Chip Optical Interconnects on Ex-Situ Substrates

January 16, 2013
Author(s)
Matthew D. Brubaker, Paul T. Blanchard, John B. Schlager, Aric W. Sanders, Alexana Roshko, Shannon M. Duff, Jason Gray, Victor M. Bright, Norman A. Sanford, Kristine A. Bertness
In this letter we report on the fabrication, device characteristics, and optical coupling of a two-nanowire device comprising light-emitting diode and photoconductive GaN nanowires. Axial p-n junction GaN nanowires were grown by molecular beam epitaxy

Using Attack Graphs in Forensic Examinations

January 16, 2013
Author(s)
Changwei Liu, Anoop Singhal, Duminda Wijesekera
Attack graphs are used to compute potential attack paths from a system configuration and known vulnerabilities of a system. Attack graphs can be used to eliminate known vulnerability sequences that can be eliminated to make attacks difficult and help
Displaying 22076 - 22100 of 73929
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