N Transference
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. Contribution of Litter and Leaf Decomposition of Byrsonima gardneriana
ABSTRACT The litter in tropical ecosystems is one of the compartments responsible for the transference of nutrients to the soil, having great importance for the conservation and maintenance of biodiversity. Thus, this study aimed to quantify the contribution and stock of litter and the leaf decomposition rate of Gardneriana byrsonima A. Juss (murici) in two
Floresta Ambient.. Publicado em: 10/12/2018
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2. Transferência de metano no sentido gás-líquido com vistas ao atendimento da demanda carbonácea da desnitrificação de esgoto sanitário
This work presents a simulation of a hybrid system for waste water treatment, in order to explain the possible use of a carbon supply on denitrification from the methane produced in an anaerobic reactor and transferred to the liquid mass of a reactor that would be removing nitrogen. It was used the biogas produced in a UASB reactor, that passed through a sto
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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3. Decomposição de resíduos da colheita e transferência de carbono para o solo em plantações de eucalipto / Harvest residue decomposition and carbon transference to the soil in eucalypt plantations
In Brazil, eucalyptus is planted in regions with different climate and soil conditions, which affect harvest residue decomposition and the rate of carbon transference fromresidues (Cres) to the soil, hence influencing soil organic matter (SOM) content. SOM is considered one of the most important indicators of soil quality and forest production sustainability
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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4. Avaliacao agronomica de Panicum maximum cv. Tobiata em consorciacao com leguminosas forrageiras tropicais.
O desempenho agronomico de Panicum maximum cv. Tobiata, em cultivo puro e consorciado com cinco leguminosas forrageiras tropicais (Desmodium ovalifolium CIAT-350, Centrosema acutifolium CIAT-5277 e CIAT-5112, C pubenscen CIAT-438 e Pueraria phaseoloides CIAT-9900), foi avaliado em ensaio conduzido em Ouro Preto d'Oeste, Rondonia. As consorciacoes foram mais
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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5. Adubacao nitrogenada e consorciacao de capim-elefante (Pennisetum purpureum cv. cameroon) com leguminosas forrageiras tropicais.
O desempenho agronomico de capim-elefante (Pennisetum purpureum cv. Cameroon) em cultivo puro fertilizado com N (0, 50 e 100 kg de N/ha/ano) ou em consorciacao com leguminosas forrageiras tropicais (Centrosema pubescens CIAT-438, C. macrocarpum CIAT-5065, Pueraria phaseoloides CIAT-9900, Calopogonium mucunoides cv. Comum, Desmodium ovalifolium CIAT- 350 e St
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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6. Plant regeneration from long-term callus culture of aaa-group dessert banana.
The banana plant is one of the most widely cultivated crops in the world. However, banana breeding has been a slow process, due to the low seed set and low germination rates. Selection of useful somaclonal variations and genetic transformation in cells or calluses are promising techniques to accelerate the breeding process. Therefore, callus culture was carr
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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7. ESTUDO DO EFEITO DE SUBSTITUINTES NA FOTOQUÍMICA DE TIOXANTONA POR FOTÓLISE POR PULSO DE LASER EM NANOSSEGUNDO / STUDY OF THE EFFECT OF substituents on the photochemical Thioxanthone flash photolysis BY LASER IN nanosecond
By laser flash photolysis, the photo-reactivity of the triplet excited state of thioxanthone derivatives (2BTX, 2MeOTX, 2PrOTX and 2MeTX) was studied. The maximum wavelength and triplet time life of theirs transients are solvent dependents, a blue-shift is observed with the change of no polar to polar middle and still more in hydroxyl solvent. The triplet sp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2010
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8. DeterminaÃÃo do coeficiente de transferÃncia de cargas nas fundaÃÃes de silos verticais cilÃndricos de base semi-V
Engineering structures are designed according to the imposed stress. In the case of silos, there is not a Brazilian standard regulation to prescribe their projects and actions. This limitation leads designers to use the foreign standards requirements which, however, differ from one another. This paper shows the evolution of knowledge about the subject, and a
Publicado em: 2010
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9. Laser vermelho e infravermelho em diferentes fluências na viabilidade do retalho cutâneo randômico em ratos
Skin flaps are widely used in plastic surgery, mainly in reconstruction surgeries (transference of skin graft, pre-made tissues). After the surgery one of the major complication is ischemia, which may cause necrosis of the flap. Several features have been studied with the aim of increasing the viability flaps. Among these features, the low laser therapy is a
Publicado em: 2010
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10. Avaliação do desempenho de Suínos Alimentados com Mananoligossacarídeos (MOS) / Effects of mannan oligosaccharides on gilts and litters performance
The present study evaluated the effects of mananoligossacarides (MOS) as a feed additive on the performance of primiparous sows in late gestation and lactation, as well as on performance and health status of their progeny up to 65 days of age. The experiment was conducted in the Laboratory of Swine Research (FMVZ/USP) Pirassununga SP. For this purpose a comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/08/2009
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11. Ocorrência de PCBs, PBDEs e pesticidas organiclorados em Prionace glauca da costa sul brasileira / Ocurrence of PCBs, PBDEs and organochlorine pesticides in Prionace glauca from Braziliam south coast
There are many studies about the occurrence of persistent organic pollutants (POPs) in the marine environment using sharks as bioindicators. However, there is still a lack of data of POPs in those organisms in Brazil. The goal of this research was to investigate the occurrence and behavior of PCBs, organochlorine pesticides and PBDEs in the marine environmen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2009
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12. Transferência do carbono de resíduos da colheita de eucalipto para frações da matéria orgânica do solo / Carbon transference from eucalypt harvest residues to soil organic matter fractions
Eucalypt plantation areas in Brazil have increased continuously over the years. The practice of removing more lignified material, such as bark and branches, from the ground after wood harvesting in eucalypt forests may prevent the stabilization of carbon (C) in recalcitrant fractions of soil organic matter (SOM). The recalcitrance of such organic fractions i
Publicado em: 2008