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Global Distribution of Solid and Aqueous Sulfate Aerosols: Effect of the Hysteresis of Particle Phase Transitions
(American Geophysical Union, 2008)
The partitioning between solid and aqueous phases of tropospheric sulfate-ammonium particles is simulated with a global 3-D chemical transport model (CTM). The simulation explicitly accounts for the hysteresis of particle ...
Sensitivity of Sulfate Direct Climate Forcing to the Hysteresis of Particle Phase Transitions
(American Geophysical Union, 2008)
The effects of solid-aqueous phase transitions on sulfate direct climate forcing (SDCF) are investigated by using both a column model and a global chemical transport model. Aqueous particles have a larger mass extinction ...
Phase Changes of Ambient Particles in the Southern Great Plains of Oklahoma
(American Geophysical Union, 2008)
A new instrument, a 1 × 3 tandem differential mobility analyzer (1 × 3-TDMA), was deployed in June 2007 in the Southern Great Plains, Oklahoma, USA to study the phase of ambient particles. Its primary measurement, the ...
Interfacial Forces are Modified by the Growth of Surface Nanostructures
(American Chemical Society, 2008)
Nanostructures formed by chemical reaction can modify the interfacial forces present in aqueous solution near a surface. This study uses force-volume microscopy to explore this phenomenon for the growth of manganese oxide ...
Water Uptake by NaCl Particles Prior to Deliquescence and the Phase Rule
(Taylor & Francis, 2008)
Using an environmental transmission electron microscope (ETEM), we show that a significant amount of water, far exceeding the multilayers caused by surface adsorption, is reversibly associated prior to deliquescence with ...