997 resultados para Erosão hídrica
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Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA
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Pós-graduação em Ciência Odontólogica - FOA
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Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV
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This work addresses the erosion caused by rain, describing their steps and factors that most influence the intensity and volume of transported material. The work presents the Universal Soil Loss Equation that quantifies the erosion, with the influence of different factors that affect it. The following notes the occurrence of this process in cutting slopes. They suffer with removal of the vegetation and surface soil layer, making them even more susceptible to this process. In this way it's necessary a protection model for the slopes. Some protection methods are presents with their main features, advantages and disadvantages, implementation process, especially to survey the approximate cost of each method and their application restrictions
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Pós-graduação em Engenharia Mecânica - FEIS
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Pós-graduação em Agronomia (Ciência do Solo) - FCAV
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Pós-graduação em Agronomia (Ciência do Solo) - FCAV
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Ciência Florestal - FCA
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Pós-graduação em Geografia - FCT
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The concepts of buccal health promotion and the increase of life expectancy have contributed for the highest maintenance of dental elements. Thus, with the new alimentary and behavioral habits the irreversible loss of dental hard tissue of non-carious origin has increased substantially, being divided in attrition, erosion and abrasion. The dental erosion is a chronic pathology defined as the superficial loss of dental hard tissue as a result of a chemical process not involving bacteria caused by acid that could be intrinsic, extrinsic or unknown etiology, causing irreversible loss of mineral tissue and dentinal hypersensitivity. The aim of this paper is to present a review of literature on the main factors that can cause the injuries of erosion, including the different aspects related to its etiology, classification, diagnosis, prevention and treatment.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Agronomia (Agricultura) - FCA