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Displaying 49101 - 49125 of 73929

Status of Mass Metrology at NIST in 2000

January 1, 2000
Author(s)
Zeina J. Kubarych
This paper summarizes the activities in mass metrology at NIST. It includes a description of the facilities and the procedures used in the dissemination of the mass unit. This paper also discusses the research efforts to understand and characterize the

Suppression of a Non-Premixed Flame Behind a Step

January 1, 2000
Author(s)
William L. Grosshandler, R Charagundla, Anthony P. Hamins, Kevin B. McGrattan, Cary Presser
Because of its many positive attributes, halon 1301 or trifluorobromomethane (CF 3Br), has been used as a fire extinguishing agent in many applications, including aircraft, ships, and specialized structures. Due to its high ozone depletion potential

Sympathetic Cooling of Trapped Ions for Quantum Logic

January 1, 2000
Author(s)
D Kielpinski, B E. King, C J. Myatt, C A. Sackett, Q A. Turchette, Wayne M. Itano, C Monroe, David J. Wineland
One limit to the fidelity of quantum logic operations on trapped ions arises from heating of the ions’ collective modes of motion. Sympathetic cooling of the ions during the logic operations may eliminate this source of errors. We discuss the benefits and

Tensile Properties of Ti 3 SiC 2 in the 25-1300 {degrees} C Temperature Range

January 1, 2000
Author(s)
M Radovic, M W. Barsoum, T El-Raghy, J Seidensticker, Sheldon M. Wiederhorn
Although significant progress has been achieved in understanding the mechanical behavior of bulk, polycrystalline Ti 3SiC 2 in compression and flexure, as far as we are aware there are no reports in the literature dealing with its mechanical response under
Displaying 49101 - 49125 of 73929
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