216 resultados para bagaço estático


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The effect of electrical discharges without thermic effect and of energy field on Meloidogyne incognita Rara 1 larvae elimination in weir water was tested. on an average, 63,22% of larvae were killed by electrical discharges, in comparison with 53,12% of dead larvae in the control (water that received only ammonium sulphate) as an electrolyte. Water exposed to energy fields presented higher percentages of dead larvae (50,01% for electromagnetic field, 43,78% for variable electric field and 40,48% for static electric field) in comparison with control, represented by water without exposition to any energy field and without ammonium sulphate (34,27%).

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The objective of the present study was to assess the rate of mycelium development of Lentinula edodes (Berk.) Pegler as an effect of depth and supplementation of the sugar cane bagasse substrate with different amounts of rice bran and sugar cane molasses. The experimental design consisted in a 7 × 2 factorial scheme (seven levels of bran or molasses x two growth phases) using autoclavable glass flasks to keep the substrates. The proportions of rice bran tested were: 0, 10, 15, 20, 25, 30 and 40% (dry weight/bagasse dry weight), and the concentrations of sugar cane molasses were: 0, 10, 20, 30, 40, 50 and 60 g/kg substrate. Graph paper strips externally slicked to the flask were used to measure the mycelial development. To differentiate the growth as a function of depth, the mycelial development was divided into two phases: an initial one (upper half of the flask) and a final one (lower half). The rate of mycelium formation was always higher in the early growth than in the final phase regardless of the amount of supplement. High bran proportions reduced the rate of mycelium formation, especially during the final phase, and sugar cane molasses did not affect growth rate.

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Geological, petrographical, chemicals and technological studies of rocks of the southwest region of Mato Grosso State, Brazil have the purpose of qualification and application of these rocks as dimension stones. The first objective is to enlarge the offering of new esthetic varieties that show a standardization of technologic patterns, adequate characterization and classification assuring the correct specification of the rocks in relation to the use as dimension stones. Ten rock types are recognized for dimension stones, including granites, diabases, gneisses and amphibolites grouped by its colors in red, grey and black types and showing economic potential of plowing. The results obtained in the technological essays show that the rock parameters are sited inside the standard limits established by technical rules and obey satisfactorily the limit values fixed for granites in internal and external covering uses.

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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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Pós-graduação em Ciências Cartográficas - FCT

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Pós-graduação em Artes - IA

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Pós-graduação em Artes - IA

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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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Pós-graduação em Artes - IA

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Pós-graduação em Artes - IA

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Pós-graduação em Engenharia Elétrica - FEIS