Volumen 27, Números 1 y 2
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VISCOUS-FLOW MECHANISM OF #6 FUEL OIL – PALM OLEIN MIXTURES
(2012-11-26)The viscosities of mixtures of #6 fuel oil and palm olein at 60 °C do not obey Kendall-‐‐Monroe equation. Molecular considerations predict deviation from ideal-‐‐mixture ... -
SYNTHESIS, CHARACTERIZATION AND REDOX BEHAVIOUR OF MIXED LIGAND COPPER(II) SACCHARINATE COMPLEXES
(2012-11-26)Three mixed-ligand complexes of Cu(II) with saccharin (sac), pyrazole, (Hpz), imidazole, (Himid) were synthesized and characterized on the basis of elemental analysis, FT-IR spectroscopy, magnetic susceptibility, EPR ... -
SOLUCIÓN DE UNA ECUACIÓN DIFERENCIAL PARCIAL DE DIFUSIÓN
(2012-11-26)Utilizing the Laplace transform, an algorithm is shown that solves the partial differential equation, product from the application of the Fick ́s second law of diffusion. ... -
THE LEGACY OF VAN DER WAALS
(2012-11-26)The physical implications of the form and nature of the van der Waals equation of state are explained. The relation of this equation to so-‐‐called van der Waals ... -
Evaluation of three chroroplastic markers for barcoding and for phylogenetic reconstruction purposes in native plants of Costa Rica
(2012-11-26)DNA barcoding has been proposed as a practical and standardized tool for species identification. However, the determination of the appropriate marker DNA regions is still a major ... -
IMPACTO DEL CRECIMIENTO ECONÓMICO INDUSTRIAL SOBRE LOS RECURSOS ENERGÉTICO E HÍDRICO EN COSTA RICA
(2012-11-26)An empirical relationship between water consumption, energy consumption and industrial GDP was established, for the case of Costa Rica. This relationship may be useful in ... -
Graph Theory and simple Hueckel Theory applied to benzene
(2012-11-26)We compare the results of application of graph theory and of simple Hueckel theory in its traditional form to benzene, as an instance of a conjugated molecular system. The ... -
COMPARACIÓN DE METODOLOGÍAS DE EXTRACCIÓN PARA LIMONENO Y CARVONA EN Lippia alba USANDO CROMATOGRAFÍA DE GASES.
(2012-11-26)Abstract Different plants drying procedures, hydrodistillation and solvent extraction by sonication were evaluated for the essential oil extraction of Lippia alba. Quantitative ...
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