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Topic Area: Environment/Climate

Displaying records 91 to 100 of 447 records.
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91. Free Volumes, Glass Transitions, and Cross-links in Zinc Oxide /Waterborne Polyurethane Nanocomposites
Topic: Environment/Climate
Published: 3/23/2011
Authors: Xiaohong Gu, Somia Awad, Hongmin Chen, James Lee, E. Abdel-Hady, Y Jean
Abstract: The free volume properties in a system of zinc oxide (ZnO) nanoparticles (20 nm) dispersed in waterborne polyurethane (WBPU) were measured using positron annihilation lifetime spectroscopy. Two glass-transition temperatures (Tg), lower Tg ~ 220 K an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907235

92. DMSC Rallies at IMTS 2010, and frequently asked questions
Topic: Environment/Climate
Published: 3/21/2011
Author: William G Rippey
Abstract: The Dimensional Metrology Standards Consortium (DMSC) marketing roadshow converged on the International Manufacturing Technology Show (IMTS) 2010 in Chicago this past September. Buoyed by many supporters, the organization showed the importance of dim ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908115

93. Design, Fabrication and Implementation of Thermally-Driven Outdoor Testing Devices for Building Joint Sealants
Topic: Environment/Climate
Published: 2/23/2011
Authors: Christopher C White, Kar T. Tan, Emmett P O'Brien, Donald Lee Hunston, R. S. Williams
Abstract: The paper describes the development, implementation and testing of two thermally driven outdoor exposure instruments. These devices are unique in their ability to impose thermally driven strain while monitoring the resulting stress and displacement f ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905467

94. The Role of Service Life Prediction In Sustainability Determinations
Topic: Environment/Climate
Published: 2/14/2011
Authors: Christopher C White, Kar T. Tan, Donald Lee Hunston
Abstract: Sustainability calculations are based on assumptions about the energy required to produce, transport place in-service items. A critical component of these calculations is the expected service life of the material, component or system. Estimates of t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907521

95. Directed 2D-to-3D pattern transfer method for controlled fabrication of topologically complex three- dimensional nanostructures in silicon
Topic: Environment/Climate
Published: 2/1/2011
Authors: Konrad Rykaczewski, Owen J. Hildreth, Ching P. Wong, Andrei G. Fedorov, John Henry j Scott
Abstract: A process allowing for control over the 3D motion of catalyst nanostructures during Metal-assisted Chemical Etching by their local pinning prior to etching is developed. Topologically complex 3D structures that are partially located within the et ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906590

96. Methylmercury photodegradation influenced by sea ice cover in Arctic marine ecosystems
Topic: Environment/Climate
Published: 1/16/2011
Authors: David Point, J E Sonke, Russell D Day, David G Roseneau, Keith A. Hobson, Stacy S Vander Pol, Amanda J Moors, Rebecca S. (Rebecca) Pugh, Olivier F. X. Donard, Paul R Becker
Abstract: Despite two decades of research on mercury in northern environments, we do not fully understand the high levels of this pollutant in Arctic Biota. The presumption that global anthropogenic mercury emissions and Arctic atmospheric mercury depletion ev ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907404

97. A Mathematical Model of Atmospheric Retention of Man-made CO_2 Emissions
Topic: Environment/Climate
Published: 12/21/2010
Author: Bert W Rust
Abstract: Rust and Thijsse [Proc. CSC'07 (2007) pp. 10-16], [CiSE, Vol. 10 (2008) pp. 49-59] have shown that global annual average temperature anomalies T(t) vary linearly with atmospheric CO_2 concentrations c(t). The c(t) can be related to man-made CO_2 emi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904587

98. WSQ Problem with Two-Thumb Captures from Large Platen Live-Scan Devices
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7746
Topic: Environment/Climate
Published: 11/18/2010
Author: Craig I Watson
Abstract: This paper investigates an issue with the Wavelet Scalar Quantization (WSQ) compression algorithm which causes severe degradation of the compressed image. The problem was first noticed when compressing the two-thumb images from live-scan identificati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907341

99. PERFORMANCE ASSESSMENTS INSIGHTS ON THE USE OF CEMENTS IN WASTE MANAGEMENT
Topic: Environment/Climate
Published: 11/7/2010
Authors: David W. Esh, Jacob Philip, Kenneth Alan Snyder
Abstract: The use of cementitious materials has been proposed in a variety of waste management systems because these materials can have a variety of desirable performance characteristics: hydraulic isolation, chemical isolation, structural stability. Cementit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906913

100. Thermochemistry of Ammonium Nitrate, NH4NO3, in the Gas Phase
Topic: Environment/Climate
Published: 10/7/2010
Author: Karl K Irikura
Abstract: Hildenbrand and coworkers have shown recently that the vapor above solid ammonium nitrate includes molecules of NH4NO3, not only NH3 and HNO3 as previously believed. Their measurements led to thermochemical values that imply an enthalpy change of D2 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905920



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