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NIST Authors in Bold

Displaying 8901 - 8925 of 17270

Final report of key comparison CCM.P-K3 absolute pressure measurements in gas from 3E-6 Pa to 9E-4 Pa

March 31, 2010
Author(s)
Douglas A. Olson, Patrick J. Abbott, Karl Jousten, Fiona J. Redgrave, Pardeep Mohan, S S. Hong
… pressures in the range of 3E-6 Pa to 9E-4 Pa. The primary standards were dynamic expansion standards at four of the NMIs and a series expansion standard … the lower pressures. The degrees of equivalence of the NMI standards were determined in two ways: deviations from the …

A Framework for Distributed and Virtual Discrete Part Manufacturing

October 1, 1996
Author(s)
Howard Bloom, Neil Christopher
… will be the experimental basis for further development of standards and specifications. Key standards such as STEP and CORBA will be utilized in the … project is supported within the National Institute of Standards and Technology (NIST)'s National Advanced …

ASTM E57 - 3D Imaging Systems

June 4, 2008
Author(s)
Geraldine S. Cheok, Alan M. Lytle, Kamel S. Saidi
… for 3D imaging systems continue to grow, the need for standards to evaluate these systems has become more critical. … scope statement for E57 is as follows: The development of standards for 3D imaging systems, which include, but are not … focus will be on specification and performance evaluation standards for 3D imaging systems for applications including, …

Quadruply-ionized barium as a candidate for a high-accuracy optical clock

October 23, 2020
Author(s)
Kyle Beloy, Vladimir A. Dzuba, Samuel Brewer
We identify Ba$^4+}$ (Te-like) as a promising candidate for a high-accuracy optical clock. The lowest-lying electronic states are part of a $^3P_J$ fine structure manifold with anomalous energy ordering, being non-monotonic in $J$. We propose a clock based

Antenna Radiation Pattern Measurements in Reverberation Chamber

November 3, 2018
Author(s)
Audrey K. Puls
Antenna radiation pattern measurements are typically performed in anechoic chambers which are expensive to buy and inconvenient to rent from external facilities. This paper investigates the use of a reverberation chamber for antenna radiation pattern

Hyperfine-mediated electric quadrupole shifts in Al+ and In+ ion clocks

April 6, 2017
Author(s)
Kyle P. Beloy, David R. Leibrandt, Wayne M. Itano
We evaluate the electric quadrupole moments of the 1S0 and 3P0 clock states of 27Al+ and 115In+. To capture all dominant contributions, our analysis extends through third order of perturbation theory and includes hyperfine coupling of the electrons to both

Crystalline domain size and faulting in the new NIST SRM 1979 zinc oxide

September 6, 2013
Author(s)
James P. Cline, David R. Black, Albert Henins, John E. Bonevich, Whitfield S. Pam, Paolo Scardi, Matteo Leoni
A NIST SRM certified to address the issue of crystallite size measurement through a line profile analysis has been under development for several years. In order to prepare the feedstock for the SRM, nano-crystalline zinc oxide was produced from thermal

Adaptive measurements in nonorthogonal state discrimination

December 18, 2012
Author(s)
Francisco E. Becerra Chavez, Alan L. Migdall
Adaptive measurements represent important resources in quantum information science and quan- tum technologies. They take advantage of the knowledge of partial measurements of the system to optimize subsequent measurements and perform tasks that are dicult
Displaying 8901 - 8925 of 17270
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