According to planet formation theory, there was a process of building that went on in the early solar system - smaller planetesimals to larger planetary embryos to actual planets.

In this paper, combine practice on the engineering building of Baosteel, application system engineering theory and promote management for equipment supplies is discussed.

This paper introduces the principle of the olfactory analogy, and advances a method for designing the fire alarming system of intelligent building by using neural network and fuzzy system theory.