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Since the discovery of the ozone depletion in Antarctic and the globally declining trend of strato-spheric ozone concentration, public and scienti®c concern has been raised in the last decades. A very important consequence of this fact is the increased broadband and spectral UV radiation in the environment and the biological e€ects and heath risks that may(More)
The differential chromaticity thresholds of three color stimuli have been determined from metameric matches carried out during the cone-plateau period after photopigment bleaching. The results are compared with some recently published ones [E. Hita, L. Jiménez del Barco, and J. Romero, J. Opt. Soc. Am. A 3, 1203 (1986)] obtained under similar experimental(More)
Knowledge of the radiation components incoming at a surface is required in energy balance studies, technological applications such as renewable energy and in local and large-scale climate studies. Experimental data of global irradiance on inclined planes recorded at Granada (Spain, 37.08°N, 3.57°W) have been used in order to study the pattern of the angular(More)
Knowledge of ultraviolet radiation is necessary in different applications, in the absence of measurements, this radio-metric ¯ux must be estimated from available parameters. To compute this ¯ux under all sky conditions one must consider the in¯uence of clouds. Clouds are the largest modulators of the solar radiative ¯ux reaching the Earth's surface. The(More)
Knowledge of the partition of global solar irradiance in its diffuse and direct beam components is required in different areas of applied meteorology. In the absence of solar irradiance measurements parametric approaches have to be used instead. In the present work, the parametric CPCR2 model has been analysed at Granada (37.18 N, 3.58 W, 660 m a.m.s.l), an(More)
Preface It is a special pleasure for me to recommend to the Readers the book Algorithms of Computer Science, edited with great care by Antal Iványi. Computer algorithms form a very important and fast developing branch of computer science. Design and analysis of large computer networks, large scale scientic computations and simulations, economic planning,(More)
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