Now showing items 1-6 of 6
Propiedades mecánicas de aerogeles híbridos de sílice
(Sociedad Espanola de Ceramica y Vidrio, 2005)
Se han obtenido aerogeles híbridos de sílice orgánico-inorgánico por aplicación de ultrasonidos de alta potencia en los precursores líquidos y posterior secado del gel húmedo en condiciones supercríticas en etanol. Las ...
The prolific polytypism of silicon carbide
(International Union of Crystallography, 2013-02)
A worked example of polytypism is presented, aimed at assisting undergraduates in the learning and instructors in the teaching of this topic. In particular, this crystallography concept, not necessarily obvious for beginners, ...
The order parameter–entropy relation in some universal classes: experimental evidence
(IOP Publishing, 2003)
The asymptotic behaviour near phase transitions can be suitably characterized by the scaling of $\Delta s/Q^2$ with $\epsilon=1-T/T_c$, where $\Delta s$ is the excess entropy and $Q$ is the order parameter. As $\Delta s$ ...
Periodical forcing for the control of chaos in a chemical reaction
(AIP Publishing, 2006-01)
Control of the chaotic behavior of a chemical system can be achieved perturbing periodically some control parameters of the system. This procedure based on external forcing, which is based on the phenomenon of resonance, ...
A cellular automaton for the modeling of oscillations in a surface reaction
(AIP Publishing, 2004-08)
The reaction of CO and O over a catalytic surface is studied with a cellular automata ~CA! model. We extend the CA model proposed by Mai and von Niessen @Phys. Rev. A 44 R6165 ~1991!# taking into account the variation ...
Mössbauer study of FeCoSiAlGaPCB amorphous alloys
A Mössbauer spectrometry and magnetic study have been performed on FeCoSiAlGaPCB amorphous alloys in order to get information about the variations in the atomic short range order with the substitution of Fe by Co. The ...