Sediment Dimension
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Desenvolvimento de métodos analíticos para determinação de agrotóxicos em sedimentos por cromatografia gasosa monodimensional e bidimensional abrangente com micro detector de captura de elétrons
The development of analytical methods for determination of eight pesticides of different chemical classes (trichlorfon, propanil, fipronil, propiconazole, trifloxystrobin, permethrin, difenoconazole and azoxystrobin) in sediments with gas chromatography-micro-electron capture detector (GC/µECD) and comprehensive two-dimensional gas chromatography with micro
Química Nova. Publicado em: 2010
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2. A influencia do diametro representativo do material do leito nas formulas de calculo do transporte de sedimentos em escoamentos com superficie livre / The influence of representative diameter of the bed material load in the formulae for calculating the sediment transport in free surface flows
Nesta tese apresenta-se uma alternativa à definição do diâmetro de cículo a ser usado nas equações de estimativa da descarga de sedimentos na camada do leito, em escoamento com superfície livre. Foram empregadas quatorze equações de estimativa da descarga de sedimentos, a partir das quais foram determinados os diâmetros que poderiam ser empregados
Publicado em: 2007
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3. Qualidade da água e fluxos de nutrientes na interface sedimento-água nas represas do Rio Tietê.
The first Law of Fick in one dimension was utilized for the calculation of those fluxes. In this work was calculated the concentrations of the following chemical species: nitrate, nitrite, ammonium, total nitrogen, orthophosphate, total phosphorus, dissolved organic carbon (DOC), cloride, fluoride, sulfate and silica reactive, as well as the biogeochemicals
Publicado em: 2003
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4. Estudo da resistência ao escoamento em canais de fundo fixo. / Flow resistance estimation in open channels with rigid bed.
The flow resistance estimation problem in channels has attracted the engineer s attention for a long time. During the last decades the flow resistance in open channels with rigid bed has been research with the use of artificial roughness in bed flumes. Adapting a natural channel roughness coefficient means the estimation of the corresponding resistance to fl
Publicado em: 2001
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5. Electrovitreotomy. 2. Principles and results.
Continued experience confirms the suitability of electrovitreotomy for dividing pathogenically taut proliferative and non-proliferative vitreous forms with a minimum of bleeding, and an inability to cut vitreous of ordinary consistency and tension. It differs directly with electrovitrectomy in these regards. To use effectively with a minimum of complications