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Displaying 37776 - 37800 of 74120

Measurement Of Parity Violation In Np Capture: The Npdgamma Experiment

January 1, 2005
Author(s)
S A. Page, J D. Bowman, R D. Carlini, T Case, T E. Chupp, K A. Coulterpark, M Dabaghyan, D Desai, S J. Freedman, Thomas R. Gentile, M T. Gericke, R C. Gillis, G L. Greene, F W. Hersmann, T Ino, S Ishimoto, G L. Jones, B Lauss, M B. Leuschner, B Losowski, R Mahurin, Y Masuda, G S. Mitchell, H Nann, S I. Penttila, W D. Ramsay, S Santra, P -. Seo, E I. Sharapov, T B. Smith, W M. Snow, W S. Wilburn, V Yuan, H Zhu

Measurement Uncertainty, CMMs, and Standards: Today and the Future

January 1, 2005
Author(s)
Steven D. Phillips
Over the past decade modern measurement uncertainty evaluation has evolved from an obscure art practiced at National Measurement Institutes (NMIs) to an increasingly intertwined aspect of industrial metrology. This paper examines the progression of

Measurements of phase shifts in an inertance tube

January 1, 2005
Author(s)
Michael A. Lewis, Peter E. Bradley, Ray Radebaugh, Ercang Lou
Phase shifts and mass flows were measured at the inlet of an inertance tube. and the results are compared with transmission line models. The mass flow rates at the entrance to the inertance tube are obtained using a hot-wire anemometer. The hot wire was

Mechanical properties of structural steel:

January 1, 2005
Author(s)
William E Luecke, J David McColskey, Christopher N McCowan, Stephen W Banovic, Richard J Fields, Timothy Foecke, Thomas A Siewert, Frank W Gayle

Microchannel Confined Surface Initiated Polymerization

January 1, 2005
Author(s)
Chang Xu, Tao Wu, Charles M. Drain, J Batteas, Kathryn L. Beers
Surface initiated atom transfer radical polymerization was successfully carried out inside a microchannel, which was formed by placing a patterned poly(dimethylsiloxane) (PDMS) stamp on top of an initiator modified flat silicon substrate. Both surface

Microfabricated Atomic Clocks

January 1, 2005
Author(s)
John E. Kitching, Svenja A. Knappe, Li-Anne Liew, P Schwindt, V Shah, John M. Moreland, Leo W. Hollberg
We describe recent progress at NIST in the development of compact, low-power atomic frequency references based on microfabrication processes. The physics packages of these frequency references have a volume near 10 cm 3, require less than 100 mW of power

Microwave Transitions and Nonlinear Magneto-Optical Rotation in Anti-Relaxation-Coated Cells

January 1, 2005
Author(s)
D Budker, Leo W. Hollberg, Derek F. Kimball, John Kitching, S Pustelny, V V. Yashchuk
Using laser optical pumping, widths and frequency shifts are determined for microwave transitions between ground-state hyperfine components of 8s}Rb and d87}Rb atoms contained in vapor cells with alkane anti-relaxation coatings. The results are compared

Modal Reconstruction of Aspheric Surfaces from Experimental Second Derivatives

January 1, 2005
Author(s)
Nadia Machkour-Deshayes, Ulf Griesmann, Byoung C. Kim
A method for the measurement of precise aspheric optical surfaces based on measurements of the second derivatives of the surface is evaluated. A compact phase-measuring interferometer is used to determine the second derivatives of a surface on a survey
Displaying 37776 - 37800 of 74120
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