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Search Publications

NIST Authors in Bold

Displaying 501 - 525 of 1414

2 2 S 1/2 Transition of Atomic Lithium by Doppler-Free Two-Photon Spectroscopy

January 1, 2003
Author(s)
W DeGraffenreid, Craig J. Sansonetti
… have been measured with an accuracy of better than 1 MHz using our Fabry-Perot wavemeter. The centers of gravity of the 4 2S1/2 levels are 35 012.033 582 (26) cm-1 for 7Li and 35 011.544 497 (30) cm-1 for 6Li. The transition isotope shift is 14 662.4 (10) MHz. We have also determined the magnetic …

Harmonization of Standards

September 12, 2001
Author(s)
Belinda L. Collins, S Stanford
… on Biomedical Materials and Devices, held June 13 -14, 2001. The workshop is part of a series of workshops and …

Production of Two Overlapping Bose-Einstein Condensates by Sympathetic Cooling

January 1, 1997
Author(s)
C J. Myatt, E A. Burt, R W. Ghrist, Eric A. Cornell, C E. Wieman
… condensates of 2x10 6 atoms in either of the F=2, m=2 or F=1, m=-1 spin states of 87 Rb. Overlapping condenstates of the two … exchange collisions between the two state is 2(1) x 10 -14 cm 3 /s, and iii) there is a repulsive interaction between …

Towards Annotations and Product Definitions for Additive Manufacturing

May 20, 2016
Author(s)
Paul W. Witherell, Gaurav Ameta, Jennifer Herron
As AM is viewed more and more as a production-capable technology, the costs of complexity have become increasingly apparent in the form of information requirements. With design flexibilities come the need to capture and communicate complex shapes. In

Measuring and Characterizing Tris (2-chloro-1-methylethyl) Phosphate Emission from Open Cell Spray Polyurethane Foam

April 19, 2016
Author(s)
Mengyan Gong, Dustin Poppendieck
… Understanding emission of Tris(2-chloro-1-methylethyl) Phosphate (TCPP) from Spray Polyurethane Foam … to TCPP in indoor environments. This study aims to: (1) develop a method to determine the gas phase concentration … Measuring and Characterizing Tris (2-chloro-1-methylethyl) Phosphate Emission from Open Cell Spray …

Quality Information Framework - Integrating Metrology Processes

May 25, 2012
Author(s)
Fiona Zhao, Thomas Kramer, John A. Horst, William G. Rippey, Robert Brown
As defined by major dimensional metrology system users and suppliers, the Quality Information Framework (QIF) is an integrated and holistic set of information models which, if widely adopted, can enable the effective exchange of metrology data throughout

Nanoslinky: DNA Entropophoresis Down a Nanofluidic Staircase

October 4, 2010
Author(s)
Elizabeth A. Strychalski, Laurie E. Locascio, Samuel M. Stavis, Michael Gaitan
Almost all nanofluidic devices for biopolymer analysis have been limited by one or two confining structural dimen-sions or the application of external forces for biopolymer manipulation, which has restricted the scope of related lab-on-a-chip technology

Testing the Performance of Hydrogen Sensors

September 8, 2009
Author(s)
Nathan D. Marsh, Thomas G. Cleary
The acceptance of hydrogen as a widely-available energy source will depend to some extent on the perceived and actual safe dispensing and storage of hydrogen by the general public. Reliable detection of an accidental hydrogen gas release and mitigation of

Introducing Sustainability Early into Manufacturing Process Planning

May 7, 2008
Author(s)
Mahesh Mani, Kevin W. Lyons, Sudarsan Rachuri, Eswaran Subrahmanian, Ram D. Sriram
In response to the global trend towards implementing sustainable manufacturing practices, we put forth an exploratory approach that uses energy monitoring as a means to introduce sustainability criteria early into manufacturing process planning and

Impulsive Loading of Cellular Media in Sandwich Construction

July 31, 2005
Author(s)
Joseph A. Main, George A. Gazonas
Motivated by recent efforts to mitigate blast loading using energy absorbing materials, this paper investigates the uniaxial crushing of cellular media in sandwich construction under impulsive pressure loading. The cellular core material is modeled using a

John Werner Cahn

September 15, 2019
Author(s)
William J. Boettinger, C A. Handwerker, Frank W. Gayle
… and Technology (NIST), died in Seattle, WA on March 14, 2016 at age 88. After distinguished careers at General …
Displaying 501 - 525 of 1414
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