248 resultados para Linha de transmissão (Energia)


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Pós-graduação em Engenharia Elétrica - FEIS

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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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The use of irrigation systems that consume lower water and energy in agriculture is important to supply the growing global demand for food. In this way, it's important to develop techniques that will increase the uniformity of water application on drip irrigation systems. The aim of the work was to compare the provision of lateral lines in drip irrigation, through the formation of wet bulbs in soil and physical parameters of radish, composed of single spacing between drippers in relation to lateral lines composed of two segments, each one composed by different spacing between emitters. Two distributions of evaluation were carried out: 1) conventional drip lateral lines with 20 cm emitter spacing were compared to proposed drip lines, with 24 emitter spacing in the initial section and 20 cm emitter spacing in the final section; 2) conventional drip lateral lines with 30 cm emitter spacing were compared to proposed drip lines, with 36 emitter spacing in the initial section and 30 cm emitter spacing in the final section. The experiment was carried out in a greenhouse of the Sao Manuel Experimental Farm, located at Sao Manuel, SP. The experimental design was entirely randomized, with six treatments and four replications. Results showed no difference among treatments for the most of the evaluated variables. So it is possible to conclude that the use of different spacing between emitters in the same lateral line can be used to increase the line length.

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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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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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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)

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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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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)