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Las sociedades tradicionales presentan tasas de natalidad y mortalidad altas, lo contrario sucede en las modernas. El cambio demográfico temporal de una a otra condición se denomina transición demográfica (TD). La Ar...

"High-temperature renewable and industrial heat applications require efficient and compact solutions to address their inherent intermittency. Latent heat thermal energy storage is one such solution, acting as a buffer be...

Various heterogeneous catalytic reactions, when performed on a flux reactor (i.e. on open systems) under UHV conditions display complex spatiotemporal patterns. Specifically, TPR, Work Function (WF) measurements (both g...

The concept of social change refers to alterations and modifications in the social behavior and the cultural values of determinated social systems and structures. In opposition to the so called social progress, social ch...

Esta Tesis está dedicada al desarrollo de un modulador de ancho de pulso (PWM) para el control de inversores de potencia trifásicos. Los moduladores de PWM se utilizan ampliamente en la industria, para el control de mo...