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Displaying 42751 - 42775 of 74348

Sympathetic cooling of 9 Be + and 24 Mg + for quantum logic

January 1, 2003
Author(s)
Murray D. Barrett, B. L. DeMarco, T Schaetz, Dietrich Leibfried, Joseph W. Britton, J Chiaverini, Wayne M. Itano, Branislav M. Jelenkovic, John D. Jost, Christopher Langer, Till P. Rosenband, David J. Wineland
We demonstrate the cooling of a two species ion crystal consisting of one 9Be+ and one 24Mg+ ion. Since the respective cooling transitions of these two species are separated by more than 30 nm, laser manipulation of one ion has negligible effect on the

System-Level Calibration of a Transfer Radiometer Used to Validate EOS Radiance Scales

January 1, 2003
Author(s)
Bettye C. Johnson, Steven W. Brown, George P. Eppeldauer, Keith R. Lykke
A number of transfer radiometers have been developed by the National Institute of Standards and Technology (NIST) with the support and funding of the National Aeronautics and Space Administration's (NASA's) satellite sensor calibration programs. The

The Amazing Properties of Materials Science

January 1, 2003
Author(s)
D P. Vigliotti, J B. Alcorn, N A. Neumeyer, D R. Cyr, A C. Rodriguez, C N. Farrell, L A. Leininger
The purpose of this presentation is to introduce educators to a demonstration that will expose students in grades seven through twelve to a variety of mechanical tests that will allow them to observe certain unexpected properties of materials.

The Effect of Surfactant on the Efficiency of Shear-Induced Drop Coalescence

January 1, 2003
Author(s)
Steven D. Hudson, A M. Jamieson, B Burkhart
Shear-induced drop coalescence efficiency e is measured by in situ videomicroscopy of emulsions of poly(propylene glycol) and poly(ethylene glycol), with poly(ethyleneglycol-b-propyleneoxide-b-ethyleneglycol) block copolymer surfactant. Sorption of
Displaying 42751 - 42775 of 74348
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