Why are carbon molecular sieves interesting?

Carbon Molecular Sieves – A kinetic study

Carbon Molecular Sieves (CMS) are unique materials which are widely used in processes based on pressure swing adsorption (PSA) for nitrogen generation by oxygen removal from air [1, 2, 3] and for the enrichment of methane from biogas or landfill gas [4]. Steadily improved CMS were launched in the last years to cover these applications. The recent materials are characterized by higher sorption c...

Why rhythmic canons are interesting

The subject of rhythmic canons has been revivified by new concepts, coming from the field of music composition. The present article is a survey of the mathematical knowledge in this field, from the 1950’s to state of the art results. 1 What is this all about ? Paving the way 1.1 Rhythmic canons and tiling I was introduced to the fascinating subject of rhythmic canons by people working at the Ir...

Why Quantum Phase Transitions Are Interesting

This paper discusses why the usual notion that quantum phase transitions can be mapped onto classical phase transitions in a higher dimension, and that this makes the former uninteresting from a fundamental theoretical point of view, is in general misleading. It is shown that quantum phase transitions are often qualitatively different from their classical counterparts due to (1) longranged effe...

What Are Lyapunov Exponents, and Why Are They Interesting?

At the 2014 International Congress of Mathematicians in Seoul, South Korea, Franco-Brazilian mathematician Artur Avila was awarded the Fields Medal for “his profound contributions to dynamical systems theory, which have changed the face of the field, using the powerful idea of renormalization as a unifying principle.” Although it is not explicitly mentioned in this citation, there is a second u...

Carbon Molecular Sieves for Hydrocarbon Separations by Adsorption