Zobrazeno 1 - 10
of 94
pro vyhledávání: '"James P. Cowin"'
Publikováno v:
Atmospheric Measurement Techniques, Vol 3, Iss 5, Pp 1377-1384 (2010)
Atmospheric particles can be collected in the field on substrates for subsequent laboratory analysis via chemically sensitive single particle methods such as scanning electron microscopy with energy dispersive x-ray analysis. With moving substrates t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14ecb43387cee471a2b7867df5728295
https://www.atmos-meas-tech.net/3/1377/2010/
https://www.atmos-meas-tech.net/3/1377/2010/
Publikováno v:
Atmospheric Environment. 89:731-738
The reaction of sulfur dioxide and hydrogen peroxide in the presence of deliquesced (>75% RH) sodium chloride (brine) particles was studied by utilizing a cross flow mini-reactor. The reaction kinetics were followed by observing chloride depletion in
Publikováno v:
Surface and Interface Analysis. 46:224-228
In this study, we report new results of in situ study of 5 nm goat anti-mouse IgG gold nanoparticles in a novel portable vacuum compatible microfluidic device using scanning electron microscope (SEM) and time-of-flight secondary ion mass spectrometry
Publikováno v:
The Open Atmospheric Science Journal. 5:106-113
Long time (~1day) aging or reactions of aerosol is typically studied using either large aerosol chambers (>10 m3) or particles supported on a substrate to minimize wall effects. To avoid wall effects in the latter, it is often essential that the wall
Publikováno v:
Journal of the American Chemical Society. 131:1037-1042
An ion moving across an oil−water interface experiences strong solvation changes. We have directly measured the solvation potential from 0.4 to 4 nm for Cs+ ions approaching the oil−water interface from the oil side (“oil” = 3-methylpentane).
Publikováno v:
Surface Science. 602:2886-2893
Hydronium segregates to the surface of H 2 O (D 2 O) ice films grown on Pt(1 1 1) above 151 K (158 K). This is observed via the voltage that develops across the films, utilizing work function measurements. The dependence of this voltage on the film
Autor:
James P. Cowin, Hai Wang, Alexander Laskin, Michael J. Ezell, Barbara J. Finlayson-Pitts, William H. Robertson
Publikováno v:
The Journal of Physical Chemistry A. 110:10619-10627
The reaction kinetics for gaseous hydroxyl radicals (OH) with deliquesced sodium chloride particles (NaClaq) were investigated using a novel experimental approach. The technique utilizes the exposure of substrate-deposited aerosol particles to reacti
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 150:260-274
Understanding the composition of particles in the atmosphere is critical because of their health effects and their direct and indirect effects on radiative forcing, and hence on climate. In this manuscript, we demonstrate the utility of single partic
Publikováno v:
The Astrophysical Journal. 620:1027-1032
There is limited time for the dust in the nebula around a newborn star to form planetesimals: in a few million years or less the star's stellar winds will disperse most of the unagglomerated dust. It has been difficult to explain the efficiency by wh
Publikováno v:
Atmospheric Environment. 38:6253-6261
The heterogeneous chemistry of individual dust particles from four different dust source regions is investigated on a particle-by-particle basis using state-of-the-art scanning electron microscopy techniques including computer-controlled Scanning Ele