The educational process in medieval universities (by the materials from Universities of Paris, Bologna and Prague)

Background.The topic is relevant because in numerous works on the history of universities in the Middle Ages, the content of the educational process was not considered in detail, and the authors limited themselves only to the general characteristics of lectures and debates as the main forms of education.Attention was rarely paid to the methodology

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Recovering activity of anodically challenged oxygen reduction electrocatalysts by means of reductive potential pulses

The stability of electrocatalysts is of great importance to ensure their applicability, but stability is generally only considered for catalysts polarised to a constant Pain Relief potential or current density.This excludes stability evaluation under start/stop conditions in a fuel cell or in reversible batteries in which the catalyst is alternatel

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Discussion on Performance Index of the Anti - Contamination Coating for the Heating Surface of Pulverized Coal Boiler

In order to help the material manufacturers and research units to understand, develop and optimize the anti - contamination high temperature nano - ceramic coating with a clear target and to have a comprehensive understanding of the coking problem that the coal boilers are faced with, based on the characteristics Replacement clip of both boiler ope

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