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Displaying records 11 to 20 of 30 records.
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11. Getting Closer to Redefining the Kilogram
Published: 10/30/2009
Author: Zeina Jabbour Kubarych
Abstract: A redefinition to replace the last remaining artifact based SI unit, the kilogram, may occur as early as 2011. This article presents a short summary of the status of current international efforts focused on the redefinition and the internationally a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903635

12. Laser Focusing of Atoms for Nanostructure Fabrication
Published: 1/1/1996
Authors: Jabez J McClelland, R Gupta, Zeina Jabbour Kubarych, Robert Celotta
Abstract: Laser-focusing of atoms has emerged as a viable form of nanofabrication. Structures are formed by focusing chromium atoms as they deposit onto a surface. The focusing occurs in a standing-wave laser field in one or two dimensions, resulting in arrays ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620463

13. Laser focusing of atoms for nanostructure fabrication
Published: 1/1/1996
Authors: J Mcclelland, Robert Celotta, Zeina Jabbour Kubarych, R Gupta
Abstract: Laser focusing of atoms has emerged as a viable form of nanofabrication. Structures are formed by focusing chromium atoms as they deposit onto a surface. The focusing occurs in a standing-wave laser field in one or two dimensions, resulting in arrays ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820050

14. Linking Air and Vacuum Mass Measurement by Magnetic Levitation
Published: 5/12/2009
Authors: Zeina Jabbour Kubarych, Patrick J Abbott, Edwin Ross Williams, Ruimin Liu, Vincent J Lee, Hung-Kung Liu
Abstract: This paper describes a new approach to directly link air and vacuum mass measurements using magnetic levitation techniques. This procedure provides direct traceability to national standards, presently defined in air, without requiring the estimate o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824704

15. Magnetic Levitation System for the Dissemination of a Non-Artifact Based Kilogram
Published: 11/27/2007
Authors: Zeina Jabbour Kubarych, Patrick J Abbott, Edwin Ross Williams, Ruimin Liu, Vincent J Lee
Abstract: We describe a new approach to directly link air and vacuum mass measurements. This approach uses magnetic levitation along with vacuum and balance technology to realize vacuum mass measurements. It provides direct traceability to the International Pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824617

16. Mass Metrology at NIST
Published: 4/23/1997
Author: Zeina Jabbour Kubarych
Abstract: The mission of the mass group of the Automated Production Technology Division at NIST is to maintain the mass unit, disseminate it to U.S. industry, government, and academia, and provide traceability to the International Prototype Kilogram. Efforts ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820005

17. Measurement of the self-broadening rate coefficients of the cesium resonance lines
Published: 11/1/1995
Authors: Zeina Jabbour Kubarych, J Huennekens, R K Namiotka, J Sagle
Abstract: The self-broadening rate coefficients of the cesium D1 [62S1/2 - 62P1/2] and D2 [62S1/2 - 62P3/2] resonance lines are determined from the 62P1/2 --> 62D3/2, 62D3/2---> 72D3/2 and 62P3/2 --> 72D5/2 transition lineshapes, which are mapped out using sin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820049

18. NIST 1-kilonewton sine force calibration system
Published: 1/22/2014
Authors: Akobuije Douglas Chijioke, Ricky Lee Seifarth, Zeina Jabbour Kubarych
Abstract: Many force-measurement applications are of a dynamic nature, and in recent decades there has been much progress in demonstrating and developing dynamic calibration systems for force transducers. The National Institute of Standards and Technology (NIS ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915045

19. Nanofabrication of a Two-Dimensional Array Using Laser-Focused Atomic Deposition
Published: 9/4/1995
Authors: R Gupta, Jabez J McClelland, Zeina Jabbour Kubarych, Robert Celotta
Abstract: Fabrication of a two-dimensional array of nanometer-scale chromium features on a silicon substrate by laser-focused atomic deposition is described. Features 13{plus or minus}1 nm high and having a full-width at half maximum of 80{plus or minus}10 nm ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=620451

20. Nanofabrication of a two-dimensional array using laser-focused atomic deposition
Published: 6/27/1995
Authors: R Gupta, Robert Celotta, Zeina Jabbour Kubarych, J Mcclelland
Abstract: Fabrication of a two-dimensional array of nanometer-scale chromium features on a silicon substrate by laser-focused atomic deposition is described. Features 13? 1 nm high and having a full-width at half maximum of 80? 10 nm are fabricated in a square ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820016



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