The building-up of phase diagrams

The building - up of phase diagrams *

This paper begins with a bird’s-eye view of the history of phase equilibrium diagrams for mixtures, their classification and interpretation. Running throughout the discussion are the fertile ideas of van der Waals. The Scott and van Konynenburg classification is revisited, and various types of phase diagrams are generated by computer simulation, using the Gibbs Ensemble Monte Carlo Method for o...

Phase diagrams of Janus fluids with up-down constrained orientations.

A class of binary mixtures of Janus fluids formed by colloidal spheres with the hydrophobic hemispheres constrained to point either up or down are studied by means of Gibbs ensemble Monte Carlo simulations and simple analytical approximations. These fluids can be experimentally realized by the application of an external static electrical field. The gas-liquid and demixing phase transitions in f...

Building Class Diagrams Systematically

The class diagram has become more important since the object-oriented paradigm has acquired more acceptance. This importance has been translated also in the new field of web engineering. However, in a lot of cases, it is not easy to get the best class diagram in a problem. For this reason, it is necessary to offer systematic processes (as cheaper and easier as possible) to give a suitable refer...

Magnetic phase diagrams of the

Diagrams up to Cohomology

Let Sp denote the category of spaces, Ho the associated homotopy category, and D a small (index) category. A diagram in Ho with the shape of D is by definition a functor F : D −→ Ho. Given such a diagram one can ask whether or not it has a realization, i.e., a lift to a functor D −→ Sp, and if so, how many realizations there are up to an appropriate kind of equivalence. This question is studied...