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Conferences

GPS Signal Integrity Dependencies on Atomic Clocks

Author(s)
Marc A. Weiss, Pradipta Shome, Ron Beard
The problem of signal integrity for GPS satellites is discussed. In particular, there is a need for characterizing peak deviation of GPS clocks from prediction...

Long-term Stability of NIST Chip-Scale Atomic Clock Physics Packages

Author(s)
Svenja A. Knappe, V Shah, Vladislav Gerginov, Alan Brannon, Leo W. Hollberg, John E. Kitching
We present measurements regarding the long-term frequency instability of NIST CSAC physics packages. Changes of the clock frequency are caused mainly through...

Effects of the Rooftop Environment on GPS Time Transfer

Author(s)
Michael A. Lombardi, Andrew N. Novick
We examine the effects of the rooftop environment on GPS time transfer, in particular the effects of multipath reflections from nearby metallic objects. Three...

Measurement Science for Remote Sensing

Author(s)
K B. Gebbie
NIST s role in providing the optical radiation measurement science and standards to ensure the quality, accuracy, and comparability of our Nation s remote...

Terminology for High-Speed Sampling-Oscilloscope Calibration

Author(s)
Dylan Williams, Tracy S. Clement, Paul D. Hale, Andrew Dienstfrey
We discuss procedures for calibrating high-speed sampling oscilloscopes at the National Institute of Standards and Technology, and the terminology associated...

Firebrand Production From Burning Vegetation

Author(s)
Samuel L. Manzello, Alexander Maranghides, William E. Mell, Thomas G. Cleary, Jiann C. Yang
A series of real scale fire experiments were performed to determine the size and mass distribution of firebrands generated from Douglas-Fir (pseudotsuga...

Advancing Factory-Wide Data Quality for APC Applications

Author(s)
Harvey Wohlwend, Gino Crispieri, Ya-Shian Li-Baboud
Accurate clock synchronization and time stamping plays a significant role in ensuring data quality as the semiconductor industry faces an imminent data...

Real-Time Speaker Verification with a Microphone Array

Author(s)
G. Mei, R. Xu, R. Lao, C. Kwan, Vincent M. Stanford
Real-time speaker verification, with speech acquired using the NIST Mk-III microphone array and an autodirective beamforming algorithm, is demonstrated. The...

ECBCS Annex 47: Cost-Effective Commissioning Research

Author(s)
Natascha S. Milesi-Ferretti, Hannah Friedman, Marti Frank
In 2005, the Executive Committee of the International Energy Agency s (IEA) Energy Conservation in Buildings and Community Systems (ECBCS) program approved the...

Development of a Motion Imagery Quality Metric

Author(s)
J Irvine, Charles D. Fenimore, D Cannon, Donna Haverkamp, John W. Roberts, S Israel, L Simon, J Miller, A Aviles, Michelle Brennan
The motion imagery community would benefit from the availability of standard measures for assessing image interpretability. The National Imagery...

INTEGRATED BRIDGE PROJECT DELIVERY AND LIFE CYCLE MANAGEMENT

Author(s)
Krishna Verma Verma, Thomas A. Siewert, F. Beckmann
This paper highlights developments that led the FHWA¿s Office of Bridge Technology, working with State departments of transportation (DOT) and the concrete and...

Control of MEMS Nanopositioners With Nano-Scale Resolution

Author(s)
Jason J. Gorman, Yong Sik Kim, Nicholas Dagalakis
Several approaches for the precision control of micro-scale positioning mechanisms, or MEMS nanopositioners, are presented along with initial experimental...

Photopatterned Polyelectrolyte Multilayers for Cell Culture

Author(s)
Darwin Reyes-Hernandez, J. Brian Hutchison, Laurie E. Locascio, Michael Gaitan
Patterned two-dimensional cell cultures are increasingly important for constructing bioanalytical tools for cell and molecular biology to address questions...
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