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NIST Authors in Bold

Displaying 37376 - 37400 of 73697

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

Multi-Sample Couette Viscometer for Polymer Formulations

January 1, 2005
Author(s)
H J. Walls, Robert F. Berg, Eric J. Amis
We describe a prototype scalable viscometer aimed at facilitating rapid measurements of multiple samples. The device simultaneously measures the viscosity of four samples in an array of Couette cells. Each cell contains a rotor with an embedded permanent
Displaying 37376 - 37400 of 73697
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