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Conferences

Real-Time Deployment of Multihop Relays for Range Extension

Author(s)
Michael R. Souryal, Johannes Geissbuehler, Leonard E. Miller, Nader Moayeri
When the range of single-hop wireless communication is limited by distance or harsh radio propagation conditions, relays can be used to extend the communication

Building Information for Emergency Responders

Author(s)
Stephen J. Treado, Alan B. Vinh, David G. Holmberg, Michael A. Galler
This paper describes a methodology for controlling access to building information to approved external entities such as police, fire and public safety officials

Inter-Laboratory Comparison of CMOS Distortion Measurements

Author(s)
Catherine A. Remley, Joe Gering, Susan L. Sweeney, C. Michael Olsen, Cliff Xie, Dave K. Walker, Tom McKay, John J. Pekarik
We describe an interlaboratory measurement comparison of distortion in a CMOS low-noise device operating under weakly nonlinear conditions. Issues that commonly

Liposome Characterization with Fluorescence Cumulant Analysis

Author(s)
Joseph E. Reiner, Andreas Jahn, Laurie E. Locascio, Michael Gaitan, John J. Kasianowicz
Liposomes are self-assembled spherical vesicles comprised of a lipid bilayer membrane that segregates an internal aqueous environment from an external aqueous

Aging Effects on the Dynamic Tensile Response of Zylon Fibers

Author(s)
Richard L. Rhorer, Joannie W. Chin, Amanda L. Forster, Weinong W. Chen, Bo Song, Xu Nie
This paper reports on dynamic tests of fibers used in soft body armor. The type of fiber tested is poly(p-phenylene-2,6- benzobisoxaxole) (PBO), or brand name

Broadband Characterization of Multilayer Dielectric Thin-Films

Author(s)
Nathan D. Orloff, Jordi Mateu, Makoto Murakami, Ichiro Takeuchi, James C. Booth
We develop a measurement technique for obtaining the broadband complex permittivity of thin-film dielectric materials over the frequency range from 100 Hz-40

The NIST Calibration Check Standards Database

Author(s)
Kevin G. Brady, Frederic J. de Vaulx, Randolph Elmquist
For several years now, NIST has been a leader in the development and use of Information Technology to process calibration information. Beginning in 1996

Dynamic Phasor Measurement Unit Test System

Author(s)
Gerard N. Stenbakken, Ming Zhou
This paper presents the plans and progress towards the development of a dynamic phasor measurement unit (PMU) performance test system at NIST. We describe an

Peak Deviation from Prediction in Atomic Clocks

Author(s)
Marc A. Weiss, A Masarie, Ron Beard
Results from a preliminary study of two GPS clocks tested on the ground show that the distribution of peak deviations from prediction cannot be assumed to be

Microwave Optoelectronic Oscillator with Optical Gain

Author(s)
Craig W. Nelson, Archita Hati, David A. Howe, W Zhou
Optoelectronic oscillators (OEO) are unique compared to radio-frequency (RF) oscillators in that they do not fundamentally require a RF gain element in order to

Optical Fiber Vibration and Acceleration Model

Author(s)
Neil Ashby, David A. Howe, Jennifer A. Taylor, Archita Hati, Craig W. Nelson
We derive expressions for the group velocities of transverse electric and transverse magnetic electromagnetic waves in a stretched single-mode fiber. Stretching

Improved Limits on Variation of the Fine Structure Constant and Violation of Local Position Invariance

Author(s)
Tara M. Fortier, Neil Ashby, James C. Bergquist, Marie Delaney, Scott A. Diddams, Thomas P. Heavner, Leo W. Hollberg, Wayne M. Itano, Steven R. Jefferts, K Kim, Windell Oskay, Thomas E. Parker, Jon H. Shirley, Jason Stalnaker, Filippo Levi, Luca Lorini
We report tests of Local Position Invariance (LPI) and constancy of fundamental constants from measurements of the frequency ratio of the 282-nm 199Hg + optical

A Theoretical Analysis of Frequency Uncertainty

Author(s)
Gianna Panfilo, Thomas E. Parker
In this work we present a preliminary study for the determination of the uncertainty on the frequency in the time measurement. The first part of this paper is
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