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Displaying records 311 to 320 of 396 records.
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311. HYDROGEN PIPELINE RESEARCH AT NIST
Topic: Materials Science
Published: 3/31/2008
Authors: Thomas Allen Siewert, Joseph David McColskey, Angelique N Lasseigne
Abstract: In 2007, the National Institute of Standards and Technology greatly expanded its efforts in support of the use of hydrogen as a fuel.   Various NIST divisions have started projects on measurement needs in the areas of flow rates, storage, mater ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853598

312. Characterizing Pattern Structures Using X-Ray Reflectivity
Topic: Materials Science
Published: 3/28/2008
Authors: Hae-Jeong Lee, Christopher L Soles, Hyun Wook Ro, Shuhui Kang, Eric K Lin, Alamgir Karim, Wen-Li Wu
Abstract: Specular X-ray reflectivity (SXR) can be used, in the limit of the effective medium approximation (EMA), as a high-resolution shape metrology for periodic patterns on a planar substrate. The EMA means that the density of the solid pattern and the sp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852735

313. Nanoimprint Lithography for the Direct Patterning of Nanoporous Interlayer Dielectric Insulator Materials
Topic: Materials Science
Published: 3/28/2008
Authors: Hyun Wook Ro, Hae-Jeong Lee, Eric K Lin, Alamgir Karim, Daniel R. Hines, Do Y. Yoon, Christopher L Soles
Abstract: Directly patterning dielectric insulator materials for semiconductor devices via nanoimprint lithography has the potential to simplify fabrication processes and reduce manufacturing costs. However, the prospect of mechanically forming these material ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852733

314. Characterization of the In-Plane Structure of Buried Interfaces by Off-Specular X-Ray and Neutron Reflectometry
Topic: Materials Science
Published: 2/14/2008
Authors: Kristopher Lavery, Vivek M Prabhu, Eric K Lin, Wen-Li Wu, Kwang-Woo Choi, Sushil K. Satija, M Wormington
Abstract: Off-specular reflectivity, or diffuse scattering, probes the lateral compositional variations at surfaces and interfaces. Of particular interest is the characterization at buried interfaces for the form and amplitude of roughness. Recent advances i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852736

315. In Situ Ultra-Small-Angle X-Ray Scattering Study of the Solution-Mediated Formation and Growth of Nanocrystalline Ceria
Topic: Materials Science
Published: 1/16/2008
Authors: Andrew John Allen, Vincent A Hackley, P R Jemian, Jan Ilavsky, J M Raitano, S W Chan
Abstract: A remote-controlled isothermal circulating fluid flow cell is described and results presented for the in situ ultra-small-angle x-ray scattering (USAXS) study of solution-mediated systems and suspensions. The fluid flow prevents settling out of coars ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850995

316. ON LINE MONITORING SYSTEM - AN APPLICATION FOR MONITORING KEY WELDING PARAMETERS OF DIFFERENT WELDING PROCESSES
Topic: Materials Science
Published: 11/16/2007
Authors: Thomas Allen Siewert, Ivan Samard¿i¿,, Zvonimir Kolumbi
Abstract: This paper describes the application of an on-line monitoring system for the monitoring, aquisition and processing of key welding parameters. The on-line monitoring system has been successfully applied in practice to measure key welding parameters fo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50624

317. Chemical Bonding and Many-Body Effects in Site-Specific X-ray Photoelectron Spectra of Corundum V2O3
Topic: Materials Science
Published: 10/1/2007
Authors: Joseph C Woicik, M Yekutiel, E J. Nelson, N Jacobson, P Pfalzer, L Kronik
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854384

318. Raman Spectroscopy of n-Type and p-Type GaSb with Multiple Excitation Wavelengths
Topic: Materials Science
Published: 10/1/2007
Authors: James E Maslar, Wilbur Scott Hurst, C Wang
Abstract: The interpretation of Raman spectra of GaSb can be complicated by the presence of a so-called surface space-charge region (SSCR), resulting in an inhomogeneous near-surface Raman scattering environment. To fully interpret Raman spectra, it is i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902678

319. Tunable Ionic-Conductivity of Collapsed Sandia Octahedral Molecular Sieves (SOMS)
Topic: Materials Science
Published: 9/12/2007
Authors: Jason D Pless, Terry J Garino, James E Maslar, Tina M Nenoff
Abstract: The structure-property relationship between atomic cation substitution and bulk scale conductivity in perovskites has been studied systematically. A series of Na-Nb perovskites has been synthesized via two methods (1) ion-exchange or (2) synthetic me ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830985

320. Benefit-Cost Analysis of Residential Fire Sprinkler Systems
Series: NIST Interagency/Internal Report (NISTIR)
Topic: Materials Science
Published: 9/2/2007
Authors: David T Butry, M H. Brown, S Fuller
Abstract: This report documents a benefit-cost analysis performed to measure the expected present value of net benefits resulting from the installation of a multipurpose network fire sprinkler system in a newly-constructed, single-family house. The benefits an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860105



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