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Conferences

Introduction to Surface Finish Metrology

Author(s)
Theodore V. Vorburger
We discuss the range of methods available to measure surface finish and emphasize the methods of stylus profiling and various types of optical profiling...

INTERCOMPARISON OF W-BAND STANDARD GAIN HORN ANTENNAS

Author(s)
Katherine MacReynolds, J. Kang, N. Kang, D. Gentle, Michael H. Francis
An intercomparison of power gain for W-band (75 GHz to 110 GHz) standard horn antennas has been performed among KRISS, NPL and NIST. This paper describes the...

Comparison of Near-Field Methods at NIST

Author(s)
Katherine MacReynolds
A comparison of the planar, spherical and cylindrical near-field techniques was completed at the National Institute of Standards and Technology (NIST) for a Ku...

Microwave Optimization of 10 V PJVS Circuits

Author(s)
Paul D. Dresselhaus, Mike Elsbury, Charles J. Burroughs, Samuel P. Benz
Proper operation of programmable Josephson voltage standard arrays depends on the uniform distribution of microwaves to a large number of Josephson junctions...

Evaporator Optimization for Non-Uniform Air Distribution

Author(s)
Piotr A. Domanski, David A. Yashar, Sunil Lee
This study demonstrates the performance improvements that can be achieved by accounting for the in-situ air flow distribution during the design phase of a heat...

Power Spectral Density: Is it right?

Author(s)
Ulf Griesmann, John Lehan, Jiyoung Chu
We concentrate on the instrumental issues surrounding power spectral density (PSD) determination, using as an example, the most common optical shop QA tool, the...

Establishing an ac Josephson voltage standard at NRC

Author(s)
Piotr S. Filipski, M. Boecker, Samuel Benz, Charles J. Burroughs
NRC recently established an AC Josephson Voltage Standard (ACJVS) system based on a NIST pulse-driven Josephson-junction array. This paper describes the efforts...

Quantifying How Lighting and Focus Affect Face Recognition Performance

Author(s)
J. R. Beveridge, David Bolme, Bruce A. Draper, Geof H. Givens, Yui M. Lui, P. Jonathon Phillips
Recent studies show that face recognition in uncontrolled images remains a challenging problem, although the reasons why are less clear. Changes in illumination...

Understanding the Hazards of Grouped Electrical Cables

Author(s)
Kevin B. McGrattan, Andrew J. Lock, Marc R. Nyden, Jason Dreisbach, Nathan D. Marsh, David Stroup
CHRISTIFIRE (Cable Heat Release, Ignition, and Spread in Tray Installations during FIRE) is a U.S. Nuclear Regulatory Commission Office of Research program to...

A Multicomponent and Multiphase Model of Reactive Wetting

Author(s)
Walter Villanueva, William J. Boettinger, Geoffrey B. McFadden, James A. Warren
A diffuse-interface model of reactive wetting with intermetallic formation is presented. The model incorporates fluid flow, solute diffusion, and phase change...
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