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David A. Howe, Archita Hati, Craig Nelson, Jennifer A. Taylor, Neil Ashby
Vibration causes mechanical distortions in fiber-optic transmission lines that induce time (phase) fluctuations. RF systems are increasingly using optical
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
Neil Ashby, Thomas P. Heavner, Steven R. Jefferts, A Radnaev, Y Dudin
We report the most sensitive tests to date of the assumption of local position invariance (LPI) underlying general relativity, based on a seven year comparison
Nathan R. Newbury, William C. Swann, Ian R. Coddington, J. C. Bergquist, Scott Diddams, Luca Lorini
We describe our current low-noise fiber-laser frequency comb and present measurements of its residual instability. Through a comparison with a Ti:Sapphire
Pooling is the most common technique used to build modern test collections. Evidence is mounting that pooling may not yield reusable test collections for very
Tung T. To, Charles Duke, T J. Burkey, Edwin J. Heilweil
The chelation dynamics of three new [Cr{?6-C6H5C(O)R}(CO)3] complexes 1 (R = CH2(SCH3)), 2 (R = CH(SCH3)2), and 3 (R = C(SCH3)3) in room temperature heptane
Recent improvements in the fabrication technology of short-wave infrared (SWIR) quantum detectors opened a new era in radiation thermometry. Ambient and higher
Bright-room contrast measurements methods are being proposed in standards committees to characterize flat panel displays for living-room ambient environments
Kavita Jeerage, Stephanie M. LaNasa, Damian S. Lauria, Stephanie J. Bryant, Andrew Slifka
Cardiomyocytes, the beating cells of the heart, are highly dependent on oxygen for survival and function. Early work in cardiac muscle tissue engineering
While specialized wind tunnel tests are routinely conducted in the design of high-rise buildings, constraints on project budgets and timelines generally do not
The Department of Homeland Security is sponsoring development of standards for urban search and rescue (USAR) robots. This program is being coordinated by the
Bogusz Bienkiewicz, Munehito Endo, Joseph Main, William P. Fritz
A progress report on an inter-laboratory comparative study of approach flow and wind pressures on low buildings is presented. The wind tunnel data generated at
The Global Positioning System (GPS) can deliver an exceptionally accurate frequency standard to any point in the world. When we use the GPS signal to control an
Hui-Min Huang, K Pavek, Mark Ragon, Jeffry Jones, Elena R. Messina, James S. Albus
The Autonomy Levels for Unmanned Systems (ALFUS) workshop series was convened to address the autonomous nature of unmanned, robotic systems, or unmanned systems
Joseph W. Robertson, Claudio G. Rodrigues, Oleg V. Krasilnikov, Vincent M. Stanford, Kenneth A. Rubinson, John J. Kasianowicz
A solitary protein nanometer-scale pore provides the basis for single molecule mass spectrometry in solution. Individual poly(ethylene glycol) molecules of
Maritoni A. Litorja, Steven W. Brown, Maria E. Nadal, David W. Allen, Alexander Gorbach
The National Institute of Standards and Technology and the National Institutes of Health have started a collaborative study on the development of lighting that
Vincent C. Hu, David F. Ferraiolo, Karen A. Scarfone
Many researchers have tackled the architecture and requirements aspects of grid security, concentrating on the authentication or authorization mediation instead
Jean-Louis Vigouroux, Sebti Foufou, Laurent Deshayes, James J. Filliben, Lawrence A. Welsch, Alkan Donmez
In this paper, a methodology for tuning the design of an evolutionary algorithm (EA) is presented. An EA for solving machining optimization probfems having
Using dynamic mechanical analyzers the relaxation behavior of a loosely cross-linked model epoxy resin was investigated before and after room temperature aging
Heather J. Patrick, Thomas A. Germer, Michael W. Cresswell, Richard A. Allen, Ronald G. Dixson, Michael R. Bishop
We use an optical critical dimension technique, matching modeled to measured scatterometry signatures, to obtain critical dimension linewidth on grating targets
We investigate the effects that variations in profile have on specular and diffuse reflectance from a grating consisting of parallel lines. We investigate, as
Robert Hadfield, Jonathan L. Habif, Lijun Ma, Alan Mink, Xiao Tang, Sae Woo Nam
We explore the potential of high-speed nanowire superconducting single-photon detectors for quantum key distribution in fiber, over long distances (at 1550 nm)
Eric Gansen, Mary A. Rowe, Marion Greene, Danna Rosenberg, Todd E. Harvey, Mark Su, Robert Hadfield, Sae Woo Nam, Richard Mirin
We demonstrate the photon-number-resolving capabilities of a novel quantum dot, optically gated, field-effect transistor cooled to 4 K. Peaks are observed in
William C. Swann, Ian R. Coddington, Luca Lorini, Jason Stalnaker, J. C. Bergquist, Scott Diddams, Nathan R. Newbury
Abstract: We present measurements of the residual frequency stability across a fiber frequency comb by comparison through a Ti:sapphire frequency comb. We find
We discuss the contributions to the linewidth and frequency noise of the individual modes of a mode-locked fiber laser. Much of this noise can be suppressed
Ian R. Coddington, Luca Lorini, William C. Swann, J. C. Bergquist, Y. Le Coq, C. W. Oates, Qudsia Quraishi, Jason Stalnaker, Scott Diddams, Nathan R. Newbury
We demonstrate coherent transfer of optical signals with radian level noise (in a 3.5 MHz bandwidth) through a series of laser systems spanning from 657 nm to
Charles R. McLean, Sanjay Jain, Andreas Craens, Deogratias Kibira
Studies have documented the high cost of the lack of software interoperability on manufacturing. New interface standards are being developed by various
This paper presents open systems architecture-based software design for an online spindle health monitoring system. The software is implemented using the