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A single-mode cavity ring-down spectrometer, which incorporates a stabilized and tuneable comb of resonant frequencies and a continuous-wave external-cavity...
The field of artificial intelligence (AI), as we understand it now, got its impetus during a two-month workshop organized by John McCarthy (Stanford University)...
Software agents have been increasingly used in the product and process development in industry over the past years due to the rapid evolvement of the Internet...
Kristine A. Bertness, Alexana Roshko, Norman A. Sanford, Joy Barker, Albert Davydov
We have identified crystal growth conditions in gas-source molecular beam epitaxy (MBE) that lead to spontaneous formation of GaN nanowires with high aspect...
We describe the concept of modularity and versatility in the construction of a new cryogenic radiometer developed at NIST. We address the benefits of the...
Joseph P. Rice, Howard W. Yoon, M H. Brenner, N R. Briggs, J G. Gillen
Walk-through portal detection systems are being developed to screen passengers for the presence of explosives in support of homeland security. These portals...
We describe primary thermodynamic standards for trace humidity generation maintained at NIST. Also, a discussion of NIST calibration services providing...
Balasubramanian Muralikrishnan, Jack A. Stone Jr., John R. Stoup
This paper presents the development of a new probing method for Coordinate Measuring Machines (CMM) to inspect diameter and form of small holes. The technique...
Marlon L. Walker, Lee J. Richter, Daniel Josell, Thomas P. Moffat
The adsorption of PEG-Cl on a.) air-oxidized Ru, b.) reduced or activated Ru and c.) underpotential deposited (upd) Cu on activated Ru was examined in-situ...
We present a portable spectrometer that uses the frequency-stabilized cavity ring-down spectroscopy technique to realize high-precision measurements of trace...
This paper will present the status of the indoor artifact-based Performance Evaluation Facility at the National Institute of Standards and Technology (NIST) for...
The tools for performing everyday nuclear science have undergone great transformations in the past decade. Because of the ubiquity and speed of networked...
This short article describes how the compositional measurements of smokeless powder have important forensic and military applications. It also details a NIST...
Aaron N. Johnson, C L. Merkle, Michael R. Moldover, John D. Wright
We computed the flow of four gases (He, N 2, CO 2, and SF 6) through a critical nozzle by augmenting traditional computational fluid dynamics (CFD) with a rate...
Jeffrey S. Nico, Maynard S. Dewey, Thomas R. Gentile, Hans P. Mumm, Alan K. Thompson, B M. Fisher, I Kremsky, Fred E. Wietfeldt, T E. Chupp, R L. Cooper, E J. Beise, K G. Kiriluk, J Byrne, K Coakley
Carlos A. Gonzalez, Y Simon-Manso, M Marquez, V Mujica
We present a simple model to describe the induction of magnetic behavior on gold clusters upon chemisorption of one organic molecule with different chemical...
Dylan F. Williams, Arkadiusz C. Lewandowski, Tracy S. Clement, C. M. Wang, Paul D. Hale, Juanita M. Morgan, Darryl A. Keenan, Andrew Dienstfrey
We develop a covariance matrix describing the uncertainty of mismatch-corrected measurements performed on the National Institute of Standards and Technology's...
Nadia Machkour-Deshayes, John R. Stoup, John Lu, Johannes A. Soons, Ulf Griesmann, Robert S. Polvani
We are developing an instrument, the Geometry Measuring Machine (GEMM), to measure the profile errors of aspheric and free form optical surfaces, which require...
This paper presents a method for constructing uncertainty regions for a vector measurand in the presence of both type-A and type-B errors. The method is based...
William T. Estler, Daniel S. Sawyer, Bruce R. Borchardt, Steven D. Phillips
The ASME B89 Committee on Dimensional Metrology has approved a new American National Standard B89.4.19 - Performance Evaluation of Laser Based Spherical...