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Global and Direct UV Irradiance Variation in the Nahuel Huapi National Park (Patagonia, Argentina) After the Eruption of Puyehue- Cordon Caulle (Chile)
(Elsevier, 2014-02-25)
On June 4th, 2011, the Puyehue-Cordon Caulle volcanic complex (40ª35´25′′S 72ª07´02′′W, Chile) started eruption, sending ash 45,000 feet into the atmosphere. After the initial period, the eruption continued for several ...
Estimativa da irradiação total sobre uma superfície inclinada a partir da irradiação global na horizontal
(2003-08-01)
A modeling study of the total irradiation reaching a tilted surface facing towards the Equator at a place with the same latitude (-22.85°), using the Daily partitioning energy, is presented. In this study three total ...
Effects of irradiance and spectral composition on the establishment of macroalgae in streams in southern Brazil
(Edp Sciences S A, 2012-01-01)
The relative effects of irradiance and spectral composition on the colonization and development of macroalgal communities were examined in four streams exposed to full sunlight in southern Brazil. A set of solar filters ...
MEO shadowring method for measuring diffuse solar irradiance: Corrections based on sky cover
(2016-12-01)
The present paper deals with atmospheric corrections factors proposed as a function of the atmospheric transmissivity in order to correct the diffuse solar irradiance measured with the Melo-Escobedo-Oliveira Shadowring ...
Phytochrome b nuclear bodies respond to the low red to far-red ratio and to the reduced irradiance of canopy shade in Arabidopsis
(American Society Of Plant Biologist, 2014-08)
The current consensus is that plant responses to canopy shade involve the perception of low red to far-red ratios (R:FRs) by phytochrome B (phyB), which leads to the direct activation of auxin synthesis genes by PHYTOCHROME ...
Ethanol electro-oxidation in an alkaline medium using Pd/C, Au/C and PdAu/C electrocatalysts prepared by electron beam irradiation
(2013-09-11)
Carbon-supported Pd, Au and bimetallic PdAu (Pd:Au 90:10, 50:50 and 30:70 atomic ratios) electrocatalysts were prepared using electron beam irradiation. The obtained materials were characterized by energy dispersive X-ray ...
Morphological assessment of dentine and cementum following apicectomy with Zekrya burs and Er:YAG laser associated with direct and indirect Nd:YAG laser irradiation
(MOSBY-ELSEVIER, 2010)
Objectives. This study aimed to assess the apical surface morphology of maxillary central incisors resected 3.0 mm from the tooth apex using Zekrya burs or Er:YAG laser, with or without subsequent direct Nd:YAG laser ...
Morphological assessment of dentine and cementum following apicectomy with Zekrya burs and Er:YAG laser associated with direct and indirect Nd:YAG laser irradiation
(Mosby-elsevier, 2010-04-01)
Objectives. This study aimed to assess the apical surface morphology of maxillary central incisors resected 3.0 mm from the tooth apex using Zekrya burs or Er:YAG laser, with or without subsequent direct Nd:YAG laser ...
Comparative study of 16 clear-sky radiative transfer models to estimate direct normal irradiance (DNI) in Botucatu, Brazil
(2021-06-01)
The interest of the direct normal irradiation (DNI) estimation is important in the evaluation of the solar potential and, consequently, for data correction and expansion of the historical series. In this study, a review ...
Temporal variability of atmospheric turbidity and DNI attenuation in the sugarcane region, Botucatu/SP
(2016-11-15)
In this study, attenuation of direct normal solar irradiance (DNI) in Botucatu / São Paulo, an area under the influence of local and adjacent agricultural burning, is expressed using the Linke's turbidity factor (TL) in ...