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A formula for the determinant of a matrix in terms of powers of traces is presented. Then, some expansions for powers of determinants of positive definite matrices in terms of zonal polynomials are derived. By making use ...
Adsorption of arsenate on Fe-(hydr)oxide
Adsorption using metal oxide materials has been demonstrated to be an effective technique to remove hazardous materials from water, due to its easy operation, low cost, and high efficiency. The high number of oxyanions in ...
Obtaining Au thin films in atmosphere of reactive nitrogen through magnetron sputtering
4d and 5d series of the transition metals are used to the obtaining nitrides metallic, due to the synthesis of PtN, AgN and AuN in the last years. Different nitrides are obtained in the Plasma Assisted Physics Vapour ...
Analysis of research and tourism development in Colombia [Analisis de la investigación y desarrollo turistico en Colombia]
This paper describes the behavior of scientific research in tourism of Colombia in the past seven years (2007-2013), analyzes variables such as: number of publications, university affiliation, studied destinations, theoretical ...
Análisis cuantitativo en la influencia de la geomorfología en la estabilidad de taludesQuantitative analysis on the geomorphology influence in slope stability
La ocurrencia de deslizamientos está relacionada con unos factores que condicionan y otros que detonan los procesos de remoción en masa. Este trabajo contribuye a cuantificar la influencia de la geomorfología en la estabilidad ...