منابع مشابه
Vapor wall deposition in Teflon chambers
Teflon chambers are ubiquitous in studies of atmospheric chemistry. Secondary organic aerosol (SOA) formation can be underestimated, owing to deposition of SOAforming vapors to the chamber wall. We present here an experimental protocol and a model framework to constrain the vapor–wall interactions in Teflon chambers. We measured the wall deposition rates of 25 oxidized organic compounds generat...
متن کاملInfluence of vapor wall loss in laboratory chambers on yields of secondary organic aerosol.
Secondary organic aerosol (SOA) constitutes a major fraction of submicrometer atmospheric particulate matter. Quantitative simulation of SOA within air-quality and climate models--and its resulting impacts--depends on the translation of SOA formation observed in laboratory chambers into robust parameterizations. Worldwide data have been accumulating indicating that model predictions of SOA are ...
متن کاملMEASUREMENT AND MODELING OF NOx OFFGASING FROM FEP TEFLON CHAMBERS
The College of Engineering, Center for Environmental Research and Technology (CE-CERT) at the University of California (UCR) is undertaking a new project to develop a “Next Generation” environmental chamber for evaluating chemical mechanisms under lower pollutant conditions than has previously been possible (Carter et al., 1999). A major objective of this project is to generate mechanism evalua...
متن کاملRe-growth of single-walled carbon nanotube by hot-wall and cold-wall chemical vapor deposition
Single-walled carbon nanotube (SWCNT) was synthesized from short nanotubes using chemical vapor deposition (CVD) and the associated factors affecting the re-growth of the SWCNT were both investigated and optimized. Long, dense nanotubes were prepared from a mixture of acetylene and ethanol on airannealed ST-cut quartz substrates by hot-wall CVD. Raman and photoluminescence analyses of the resul...
متن کاملA Unified Model for Ion Deposition and Thermomechanical Response in Dry Wall Laser Ife Chambers
Dry wall laser IFE chambers will experience large, transient heat and particle fluxes as the target yield products reach the wall. These threats, consisting of xrays, ions, and neutrons, can lead to wall failure caused by transient stresses or as a result of deposited ions in the near-surface layer. We have developed a unified model for the calculation of temperatures, stresses, strains, and fr...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2015
ISSN: 1680-7324
DOI: 10.5194/acp-15-4197-2015