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Effect of terbium(III) chloride on the micellization properties of sodium decyl...
Neves, A. C. S.; Valente, A. J. M.; Burrows, H. D.; Ribeiro, A. C. F.; Lobo, V. M. M.The effect of TbCl3 on the aggregation processes of the anionic surfactants sodium decyl sulfate (SDeS) and sodium dodecyl sulfate (SDS) has been investigated. Electrical conductivity data, combined with Tb(III) luminescence measurements suggest that the formation of micelles involving TbCl3 and SDS occurs at concentrations below the critical micelle concentration (cmc) of the pure surfactants; the formation of...
Interactions of copper (II) chloride with sucrose, glucose, and fructose in aqu...
Ribeiro, A. C. F.; Esteso, M. A.; Lobo, V. M. M.; Valente, A. J. M.; Simões, S. M. N.; Sobral, A. J. F. N.; Burrows, H. D.The interaction between copper (II) chloride and the carbohydrates sucrose, glucose, and fructose has been studied in aqueous solutions at 298.15 and 310.15 K, using measurements of diffusion coefficients and electrical conductivity. Significant effects on the electrical conductivity were observed in the presence of these carbohydrates, suggesting interactions between them and copper chloride. Support for this ...
Effect of Europium(III) Chloride on the Aggregation Behavior of Sodium Dodecyl ...
Valente, A. J. M.; Burrows, H. D.; Pereira, R. F.; Ribeiro, A. C. F.; Pereira, J. L. G. Costa; Lobo, V. M. M.The effect of EuCl3 on the aggregation processes of sodium dodecyl sulfate was investigated. Electrical conductivity data, combined with Eu(III) luminescence measurements, suggest that the formation of micelles involving EuCl3 and SDS occurs at low SDS concentration; the formation of these mixed aggregates was also monitored by light scattering, which indicates that the addition of EuCl3 to SDS concentration at...
Interactions of Copper (II) Chloride with ß-Cyclodextrin in Aqueous Solutions
Ribeiro, A. C. F.; Esteso, M. A.; Lobo, V. M. M.; Valente, A. J. M.; Simões, S. M. N.; Sobral, A. J. F. N.; Ramos, L.; Burrows, H. D.; Amado, A. M.The interaction between copper (II) chloride and the carbohydrate ß-cyclodextrin (ß-CD) has been studied in aqueous solutions (298.15 K and 310.15 K) using measurements of diffusion coefficients and electrical conductivity. Significant effects on the electrical conductivity were observed in the presence of the ß-CD, suggesting interactions between this carbohydrate and copper chloride. Support for this came fro...
Avaliacao tecnica e financeira da atividade de producao de leite em uma fazenda...
VELOSO, R. F.; FERNANDES, F. B.; ALMEIDA, P. H. de; CUNHA, M. A. D.; BOATO, F.; RIBEIRO, A. C. F.; MARTINS, M. C.; COLOCA, A. A.Este trabalho apresenta uma avaliação tecnica e financeira da atividade de producao de leite em uma fazenda do Municipio de Gameleira-GO, regiao sul de Estado de Goias que incorpora, tambem, atividades de producao de graos, de cereais e de tomate industrial irrigado. O trabalho visa tambem a demostrar a importância de um estudo de caso, para avaliacao de novas tecnologias. Com o software Microsoft Acces, desenv...
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