Optical properties of surfaces covered by latex particles with a bimodal size distribution: comparison with theory

1996 ◽  
Vol 13 (5) ◽  
pp. 1046 ◽  
Author(s):  
E. K. Mann ◽  
A. Bollander ◽  
G. J. M. Koper ◽  
P. Schaaf ◽  
L. Heinrich
Keyword(s):  
Optical Properties ◽  
Size Distribution ◽  
Bimodal Size Distribution ◽  
Latex Particles

Effect of Bimodal Size Distribution on Optical Properties of CdSe Nanocrystals

2011 ◽  
Vol 7 (2) ◽  
pp. 275-281 ◽  
Author(s):  
S. N. Sarangi ◽  
A. M.P. Hussain ◽  
S. N. Sahu
Keyword(s):  
Optical Properties ◽  
Size Distribution ◽  
Cdse Nanocrystals ◽  
Bimodal Size Distribution

Effect of the bimodal size distribution on the optical properties of self-assembled Ge/Si(001) quantum dots

2000 ◽  
Vol 380 (1-2) ◽  
pp. 78-81 ◽  
Author(s):  
V Yam ◽  
Vinh Le Thanh ◽  
U Compagnon ◽  
U Gennser ◽  
P Boucaud ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Size Distribution ◽  
Bimodal Size Distribution ◽  
Self Assembled

scholarly journals Evaluating model parameterizations of submicron aerosol scattering and absorption with in situ data from ARCTAS 2008

2016 ◽  
Vol 16 (14) ◽  
pp. 9435-9455 ◽  
Author(s):  
Matthew J. Alvarado ◽  
Chantelle R. Lonsdale ◽  
Helen L. Macintyre ◽  
Huisheng Bian ◽  
Mian Chin ◽  
...  
Keyword(s):  
Optical Properties ◽  
Size Distribution ◽  
Aerosol Size Distribution ◽  
Visible Radiation ◽  
Submicron Aerosol ◽  
In Situ Data ◽  
Aerosol Absorption ◽  
Aerosol Scattering ◽  
The Impact

Abstract. Accurate modeling of the scattering and absorption of ultraviolet and visible radiation by aerosols is essential for accurate simulations of atmospheric chemistry and climate. Closure studies using in situ measurements of aerosol scattering and absorption can be used to evaluate and improve models of aerosol optical properties without interference from model errors in aerosol emissions, transport, chemistry, or deposition rates. Here we evaluate the ability of four externally mixed, fixed size distribution parameterizations used in global models to simulate submicron aerosol scattering and absorption at three wavelengths using in situ data gathered during the 2008 Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) campaign. The four models are the NASA Global Modeling Initiative (GMI) Combo model, GEOS-Chem v9-02, the baseline configuration of a version of GEOS-Chem with online radiative transfer calculations (called GC-RT), and the Optical Properties of Aerosol and Clouds (OPAC v3.1) package. We also use the ARCTAS data to perform the first evaluation of the ability of the Aerosol Simulation Program (ASP v2.1) to simulate submicron aerosol scattering and absorption when in situ data on the aerosol size distribution are used, and examine the impact of different mixing rules for black carbon (BC) on the results. We find that the GMI model tends to overestimate submicron scattering and absorption at shorter wavelengths by 10–23 %, and that GMI has smaller absolute mean biases for submicron absorption than OPAC v3.1, GEOS-Chem v9-02, or GC-RT. However, the changes to the density and refractive index of BC in GC-RT improve the simulation of submicron aerosol absorption at all wavelengths relative to GEOS-Chem v9-02. Adding a variable size distribution, as in ASP v2.1, improves model performance for scattering but not for absorption, likely due to the assumption in ASP v2.1 that BC is present at a constant mass fraction throughout the aerosol size distribution. Using a core-shell mixing rule in ASP overestimates aerosol absorption, especially for the fresh biomass burning aerosol measured in ARCTAS-B, suggesting the need for modeling the time-varying mixing states of aerosols in future versions of ASP.

High PVC film-forming composite latex particles via miniemulsification, part 3: Optical properties

2006 ◽  
Vol 101 (6) ◽  
pp. 4526-4537 ◽  
Author(s):  
Ghurmallah H. Al-Ghamdi ◽  
E. David Sudol ◽  
Victoria L. Dimonie ◽  
Mohamed S. El-Aasser
Keyword(s):  
Optical Properties ◽  
Latex Particles ◽  
Film Forming ◽  
Pvc Film

New insights on estimating pore size distribution of latex particles: Statistical mechanics approach and modeling

2016 ◽  
Vol 224 ◽  
pp. 360-371 ◽  
Author(s):  
Manel Bergaoui ◽  
Mohamed Khalfaoui ◽  
Jhonny Villarroel-Rocha ◽  
Deicy Barrera ◽  
Shaheen Al-Muhtaseb ◽  
...  
Keyword(s):  
Statistical Mechanics ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Latex Particles
Sign in / Sign up

Export Citation Format

Share Document