2010
2007
2007
Estudos relacionados aos efeitos do aumento artificial da concentração de CO2 sobre as plantas permitem que se conheça a capacidade das plantas de adaptarem-se em atmosfera enriquecida com dióxido de carbono. Realizou-se estudos com a cultura do melão para avaliar os efeitos da aplicação de CO2 (80 kg ha-¹) e doses de nitrogênio (0, 40, 80 e 120 kg ha-¹), via água de irrigação localizada, na produtividade e car...
There is a great incentive for developing systematic approaches that effectively identify strategies for planning oilfield complexes. This paper proposes an MILP that relies on a reformulation of the model developed by Tsarbopoulou (UCL M.S. Dissertation, London, 2000). Moreover, a bilevel decomposition technique is applied to the MILP. A master problem determines the assignment of platforms to wells and a plan...
Study of a set of 34 denarii, belonging to a hoard found in Monte do Senhor dos Perdidos (Penacova, Felgueiras), of which only 26 pieces were known (published in 1987). This material, from distinct private collections, makes it possible to establish a different chronology as far as its occultation is concerned (probably during the reigns of Claudius I or Nero).
An optimization method for determining the best configuration(s) of gasketed plate heat exchangers is presented. The objective is to select the configuration(s) with the minimum heat transfer area that still satisfies constraints on the number of channels, the pressure drop of both fluids, the channel flow velocities and the exchanger thermal effectiveness. The configuration of the exchanger is defined by six p...
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