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Olefin polymerization on Cr(III)/SiO2: Mechanistic insights from the differences in reactivity between ethene and propene
Silica-supported well-defined Cr(III) sites, which polymerize ethene, are barely reactive towards propene while they copolymerize propene and ethene, a reactivity pattern similar to what is observed for the Phillips catalyst. ...
Software process improvement assesment for multimodel environment tool to diagnose an organization [Evaluación de mejora de procesos software para entornos multi-modelo Herramienta para el diagnóstico de una organización]
Organizations that implement improvement processes to develop quality software usually appeal to SCAMPl-like evaluation methods in order to diagnose, plan and certify themselves. However, nowadays there is a need that goes ...
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An extension of the well known matrix Kummer relation of Herz (1955) is proposed in this paper by assuming a general model which admits a Taylor expansion. Under certain conditions of the involved parameters, the addressed ...
Quantitative risk assessment of landslides triggered by earthquakes and rainfall based on direct costs of urban buildings
This paper outlines a framework for risk assessment of landslides triggered by earthquakes and rainfall in urban buildings in the city of Medellín - Colombia, applying a model that uses a geographic information system ...