Nitrogen Incorporation
Mostrando 13-24 de 219 artigos, teses e dissertações.
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13. Some factors affecting tannase production by Aspergillus niger Van Tieghem
One variable at a time procedure was used to evaluate the effect of qualitative variables on the production of tannase from Aspergillus niger Van Tieghem. These variables including: fermentation technique, agitation condition, tannins source, adding carbohydrates incorporation with tannic acid, nitrogen source type and divalent cations. Submerged fermentatio
Braz. J. Microbiol.. Publicado em: 2013
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14. Performance and isotopic composition of 13C and 15N in muscle tissue of Nile tilapia (Oreochromis niloticus) fed with different protein / Desempenho produtivo e composição isotópica de 13C e 15N no tecido muscular de tilápia do Nilo (Oreochromis niloticus) alimentada com diferentes fontes protéicas
Alternative sources of food have been studied in substitution for fishmeal in aquaculture, and it may result in a difference in incorporation of carbon and nitrogen, depending on the nutritional value and availability of the source. Two experiments were designed to quantify the participation of different protein sources in the muscle tissue in juvenile and p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/06/2012
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15. 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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16. Aloenxerto ósseo cortical desvitalizado com nitrogênio líquido ¿ estudo experimental em ovelhas
Bone grafting is employed in veterinary orthopedics with a variety of purposes as for arthrodesis, spinal fusions, fracture repairs, treatment of delayed or non-unions, filling bone defects, supporting corrective osteotomy, and as replacement in limb sparing techniques for tumor resection. The allograft bone, in contrast to the autologous bone graft, is asso
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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17. Conformational analysis and electronic structure of chiral carbon and carbon nitride nanotubes
Geometry and electronic structure of chiral carbon and carbon nitride (CNx) nanotubes were investigated through quantum chemical methods. Finite nanotubes with diameters ranging from 5 to 10 Å and containing up to 500 atoms were considered. CNx structures were built through random substitution of carbon atoms by nitrogen. The molecules were fully optimized
Materials Research. Publicado em: 30/09/2011
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18. Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin
Polymethyl methacrylate (PMMA) resins have commonly been used as a denture base material. However, denture bases may act as a reservoir for microorganisms and contribute to oral diseases in denture wearers. It is hypothesized that the 2-tert-butylaminoethyl methacrylate (TBAEMA) incorporated to acrylic resins should have antimicrobial activity related to the
Journal of Applied Oral Science. Publicado em: 2011-06
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19. Fontes e métodos de aplicação de nitrogênio em feijoeiro irrigado submetido a três níveis de acidez do solo.
Em sistemas conservacionistas de preparo do solo, em que não se efetua o revolvimento da camada superficial, os fertiizantes nitrogenados e corretivos têm sido aplicados na superfície do solo; porém, pouco se conhece a respeito do efeito dessa prática sobre a produtividade do feijoeiro irrigado.
Ciência e Agrotecnologia. Publicado em: 2011
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20. Green manure incorporation timing for organically grown broccoli.
The objective of this work was to determine the effect of incorporation timing of the velvet bean (Stizolobium cinereum) (GM) on both organic broccoli yield and N status. Mineral N content in the soil, biologically fixed N recovery by broccoli, GM biomass decomposition and N release kinetics were also determined. Plots were fertilized with 12 Mg ha-1 of orga
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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21. Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15
La-incorporated SBA-15 mesopourous molecular sieves (LaSBA-15) were directly synthesized with aim to convert ethanol to ethylene. The samples were characterized by XRD, XRF, nitrogen sorption and acidity, by thermodesorption of n-buthylamine. The results have indicated that all the samples have showed high ordered mesostructure with a large average pore size
Química Nova. Publicado em: 2010
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22. The dynamic-mechanical behavior of epoxy matrix composites reinforced with ramie fibers
The exceptional tensile strength of ramie fiber has motivated investigations on its application as reinforcement in polymeric composites. In this study the temperature variation of the dynamic-mechanical parameters of epoxy matrix composites incorporated with up to 30% in volume of ramie fiber were investigated by DMA tests. The parameters were the storage m
Matéria (Rio de Janeiro). Publicado em: 2010
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23. Preparation, characterization and evaluation of iron oxides and cobalt supported on activated carbon and polymeric catalysts for the dehydrogenation of ethylbenzene / Preparação, caracterização e avaliação de óxidos de ferro e cobalto suportados em carvão ativado polimérico como catalisador na reação de desidrogenação do etilbenzeno
In this work were synthesized catalysts supported on activated carbons, which were obtained by carbonization of a polymer matrix. The precursor of activated carbon was the sulfonated styrene-divinylbenzene copolymer, which was synthesized by suspension polymerization in the presence of inert diluents to produce a macroporous network structure. The chemical m
Publicado em: 2010
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24. Incorporação de uréia encapsulada em suplementos protéicos fornecidos para novilhos alimentados com feno de baixa qualidade / Incorporation of coated urea in protein supplements supplied to steers fed with low quality hay
Foi realizado um experimento com o objetivo de verificar o efeito da suplementação com uréia encapsulada ou normal sobre a utilização de volumoso de baixa qualidade em novilhos. Os tratamentos foram: Feno + sal mineralizado; Feno + suplemento protéico com uréia comum; Feno + suplemento protéico com uréia encapsulada fórmula 1; Feno + suplemento pro
Publicado em: 2010