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Displaying records 671 to 680 of 754 records.
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671. The Nuts and Bolts and Results of Fluorine Bomb Calorimetry
Topic: Physics
Published: 12/1/1999
Author: P A O'Hare
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100741

672. The Relativistic Red Shift with 2 {multiply} 10^u-17^ Uncertainty at NIST, Boulder, CO USA
Topic: Physics
Published: 1/1/2000
Authors: N K Pavlis , Marc A Weiss
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=105543

673. The SIM Time Network
Topic: Physics
Published: 3/1/2011
Authors: Michael A Lombardi, Andrew N Novick, J. Mauricio Lopez-Romero, Francisco Jimenez, Eduardo de Carlos Lopez, Jean-Simon Boulanger, Raymond Pelletier, Ricardo de Carvalho, Raul Solis, Harold Sanchez, Carlos Andres Quevedo, Gregory Pascoe, Daniel Perez, Eduardo Bances, Leonardo Trigo, Victor Masil, Henry Postigo, Anthony Questelles
Abstract: The Sistema Interamericano de Metrologia (SIM) is a regional metrology organization (RMO) whose members are the national metrology institutes (NMIs) located in the 34 nations of the Organization of American States (OAS). The SIM/OAS region extends t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905218

674. The SIM Time Network and its Contributions to Metrology in the Americas
Topic: Physics
Published: 4/1/2009
Author: Michael A Lombardi
Abstract: The SIM Time Network (SIMTN) has been one of the great success stories of the Sistema Interamericano de Metrologia (SIM), a regional metrology organization (RMO) that includes the 34 member nations of the Organization of American States (OAS). The S ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902059

675. The SIM Time and Frequency Network
Topic: Physics
Published: 12/1/2008
Authors: Michael A Lombardi, Andrew N Novick, Jose M. Lopez, Francisco Jimenez, Jean-Simon Boulanger, Raymond Pelletier, Ricardo de Carvalho, Raul Solis, Carlos Donado, Harold Sanchez, Carlos Andres Quevedo, Gregory Pascoe, Daniel Perez
Abstract: The {I}Sistema Interamericano de Metrologia{/I} (SIM) consists of national metrology institutes (NMIs) located in the 34 member nations of the Organization of American States (OAS), which extends throughout North, Central, and South America, and the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842555

676. The SIM time scale
Topic: Physics
Published: 4/20/2013
Authors: Michael A Lombardi, J. Mauricio Lopez-Romero, Nelida Diaz-Munoz, E. de Carlos-Lopez
Abstract: Time measurement is of great importance for science, technology and commerce. Among the seven base units of the International System (SI), the second can be realized with the smallest uncertainty, currently reaching parts in 10^u16^. Keeping track of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910952

677. The evolving optical frequency comb
Topic: Physics
Published: 10/22/2010
Author: Scott A Diddams
Abstract: Much as natural historians search for the first roots of our human race, curiosity drives the laser scientist to pursue the roots of his or her own field. This is especially the case in this year where our community celebrates the 50th anniversary o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906176

678. The global positioning system, relativity, and extraterrestrial navigation
Topic: Physics
Published: 4/27/2009
Author: Neil Ashby
Abstract: Relativistic effects play an important role in the performance of the Global Positioning System (GPS) and in world-wide time comparisons. The GPS has provided a model for algorithms that take relativistic effects into account. In the future explorati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904814

679. The hyperfine Paschen-Back Faraday effect
Topic: Physics
Published: 3/26/2014
Authors: Svenja A Knappe, M.A. Zentile, Rebecca Andrews, L. Weller, C.S. Adams, I.G. Hughes
Abstract: We investigate experimentally and theoretically the Faraday effect in an atomic medium in the hyperfine Paschen-Back regime, where the Zeeman interaction is larger than the hyperfine splitting. We use a small permanent magnet and a micro-fabricated ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915173

680. The optical calcium frequency standards of PTB and NIST
Topic: Physics
Published: 11/5/2004
Authors: U Sterr, C Degenhardt, H Stoehr, Ch. Lisdat, H Schnatz, J Helmcke, F Riehle, G Wilpers, Christopher W Oates, Leo W. Hollberg
Abstract: We describe the current status of the optical calcium frequency standard with laser-cooled neutral atoms realized in two different laboratories for the purpose of developing a possible future optical atomic clock. Frequency measurements performed at ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50037



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