The fatigue life is seen to depend on the grain size and stress amplitude, based on the nonequilibrium statistical theory of fatigue fracture and the model of interface energy.

In order to explore the effect of grain size on fatigue life, a formula of fatigue life for polycrystalline metals,which depends on the grain size and cyclic strain amplitude, is derived based on the non-equilibrium statistical theory of fatigue fracture and the model of interface energy.

According to the principle and the heat balance equation of the conduction calorimeter, the interfacial model of the conduction calorimeter and a theoretical equation for the calorimeter in which the delay of sensing has been considered have been suggested.

The article briefly elaborates the essentiality on study model of CMUI,introduces and analyzes several traditional user interface models, puts forward the structure model of CMUI,expounds the modeling principles,composes and relationships of components in the model.

The suggestion includes function model, information model, interface model, configuration model, and also some integrated method on the system.

Some issues,such as core concrete model and interface model were discussed.

User interface templates based on user interface model;