light absorption
Light absorption by organic carbon from wood combustion
... visible light absorption of filter-based aerosol samples from biomass burning before and after acetone treat- ment, and estimated 50% of the total light absorption was contributed by organic ...
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Time-resolved measurements of black carbon light absorption enhancement in urban and near-urban locations of Southern Ontario, Canada
... particle light absorption (B abs ) and scattering (B scat ) coefficients measured from the PA, the primary particle size (PPS) and soot volume fraction (SVF) determined from the LII, and the particle ...
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The role of iron and black carbon in aerosol light absorption
... measured light extinction at fixed mass absorption efficiency, was measured by a light reflectance ...white light. Instead of assuming a mass absorption effi- ciency (MAE, in m 2 g −1 ...
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Decoration of Ti/TiO2 Nanotubes with Pt Nanoparticles for Enhanced UV-Vis Light Absorption in Photoelectrocatalytic Process
... absorption both in UV and visible regions than that of undecorated ones (see Figure 8), which coincides with the absorption lines in the regions (i.e., at λ = 254, 373, 410, 441, 542 and 572 nm) obtained ...
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Aerosol light absorption in the North Atlantic: trends and seasonal characteristics during the period 1989 to 2003
... aerosol absorption data is found to be bimodally ...aerosol light ab- sorption are found to follow closely a lognormal distribu- tion with a geometric mean of ...aerosol absorption are nei- ther ...
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Impact of brown and clear carbon on light absorption enhancement, single scatter albedo and absorption wavelength dependence of black carbon
... Purely scattering shells on black Carbon(BC) can significantly enhance the absorption by that core as a result of focusing of light towards the BC core by the shell mate- rial (Bond et al., 2006). However, ...
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Spectral dependence of aerosol light absorption over the Amazon Basin
... Absorption ˚ Angstr¨om exponents did not vary significantly with wavelength, so that, in most cases, a power law fit could be applied over the whole measured spectral range (450– 950 nm). About 70 % of the ˚a lin ...
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Adaptive firefly algorithm: parameter analysis and its application.
... distance-based light absorption coefficient and gray coefficient for adaptively altering the attractiveness and enhancing difference information sharing, respectively; (2) five strategies for controlling ...
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Scattering and absorption properties of near-surface aerosol over Gangetic–Himalayan region: the role of boundary layer dynamics and long-range transport
... backscattering, light absorption and their wavelength dependence) of near-surface aerosols was performed in the current study, aiming to investigate the temporal evo- lutions, variety of aerosol types and ...
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J. Braz. Chem. Soc. vol.19 número6
... the light absorption in discrete near ultraviolet visible and near-infrared regions through electronic processes, including crystal field transitions within the individual TM cations, intervalence charge ...
7
Effects of n-propyl gallate on photosynthesis and physiological parameters in Dunaliella salina are affected by stressful conditions
... of light absorption per total number of active reaction center (A), performance index (B), structure and functioning of photosystem II (C), and the area above the chlorophyll fluorescence curve between F o ...
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Black carbon measurements in the boundary layer over western and northern Europe
... mass. Light absorption coefficients were measured by particle soot absorption pho- tometers on two separate aircraft and showed similar geo- graphic patterns to rBC mass measured by the ...and ...
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Modeling of Si-QD Solar Cell in MATLAB
... cells. Researchers use nano-particles or quantum dots of different materials for enhancing light absorption, charge generation, and the efficiency of solar cells. In order to reduce the overall cost of high ...
3
Scattering and absorption properties of near-surface aerosol over Gangetic–Himalayan region: the role of boundary-layer dynamics and long-range transport
... backscattering, light absorption and their wavelength dependence) of near-surface aerosols was performed in the current study, aiming to investigate the temporal evolutions and influence of transported ...
18
Synthesis and Photoluminescence Spectra of the Composite Films with Cadmium Sulfide Nanocrystals
... An increase of the precursor Cd( ) 2∙ 2H 2 O concentration in polymer matrix does not bring about automatic increase in the light absorption at max and photoluminescence intensity o[r] ...
5
Primary and secondary contributions to aerosol light scattering and absorption in Mexico City during the MILAGRO 2006 campaign
... sources. Note that the aerosol concentration at night above the boundary layer is typi- cally small (e.g. OA background levels are ∼0.8±0.3 µg m 3 under ambient conditions; Herndon et al., 2008) and thus the air which is ...
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Aerosol absorption measurements at the ALOMAR subarctic station
... spectral absorption coefficient from the UV to the near infrared wavelengths with a spectral resolution of 10 ...scattered light, so that the absorption alone reduces transmitted ...The light ...
7
Optical and chemical properties of atmospheric PM fractions related with air masses in the central Iberian Peninsula
... The net effect of aerosols on the climate is still not completely clear, despite the huge number of studies about their radiative properties. Atmospheric aerosols can behave as a factor of cooling or warming, depending ...
10
Ionic and carbonaceous compositions of PM<sub>10</sub>, PM<sub>2.5</sub> and PM<sub>1.0</sub> at Gosan ABC superstation and their ratios as source signature
... J.: E ff ects of black carbon content, particle size, and mixing on light absorption by aerosols from biomass burning in Brazil, J. A.: New directions in black carbon organic geochemistr[r] ...
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Cálcio dietético: estratégias para otimizar o consumo
... Nowadays, many studies demonstrate the beneic effects of bioactive compounds in different biological processes, in- cluding the increase of calcium absorption. The nondigestible oligosaccharides (inulin, fructans ...
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