962 resultados para Difusão iônica
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The edges detection model by a non-linear anisotropic diffusion, consists in a mathematical model of smoothing based in Partial Differential Equation (PDE), alternative to the conventional low-pass filters. The smoothing model consists in a selective process, where homogeneous areas of the image are smoothed intensely in agreement with the temporal evolution applied to the model. The level of smoothing is related with the amount of undesired information contained in the image, i.e., the model is directly related with the optimal level of smoothing, eliminating the undesired information and keeping selectively the interest features for Cartography area. The model is primordial for cartographic applications, its function is to realize the image preprocessing without losing edges and other important details on the image, mainly airports tracks and paved roads. Experiments carried out with digital images showed that the methodology allows to obtain the features, e.g. airports tracks, with efficiency.
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This paper aims to analyze the geographical dynamics of work from the spread of formal employment in the agricultural sector in Northeast Brazil. In recent years the region has had highlighted a growing movement to produce fruit for export, resulting in the promotion of important sociospatial transformations arising from the formation of a capitalist labor market. Data about the increase in the number of formal jobs show the impact of fruit growing agribusiness in the establishment of a new social and territorial division of labor. However, our study draws attention to the existence of a framework dominated for the vulnerability of the labor market by the persistence of seasonality and precarious working conditions.
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Pós-graduação em Ciências Cartográficas - FCT
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Pós-graduação em Artes - IA
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Ciência e Tecnologia de Materiais - FC
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Pós-graduação em Engenharia Mecânica - FEIS
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Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)