Recently,both traditional MOEA and EFF-MOEA which optimize "original objective function" and "effective objective function" respectively easily lose some kinds of solutions.

Improvement of objective function based on dose constrain in inverse planning optimization of intensity-modulated radiotherapy;

Fuzzy modeling of nonlinear system with matrices decomposition based on objective function;

Discussion on engineering economic principles in majorized objective function of water supply pipe network;

The optimization of trajectory for stepped horizontal wells takes well design depth or friction as the target function, which is only based on techniques.

The first,ascertain the target function,second,build constraint condition,finally carried out the optimization designs,because of the target function is multivariate,no linearity,constraint condition is many but complicated,adopt direct search for delaminating iterative method,the compound shape secretly schemes against face to face much,take and the optimum so.

Under the condition that the tension stress does not arise in the female die inwall, which can be defined as target function.

Based on the characteristics of four high plate rolling mill,an object function of backup roll profile design was given.

At first, the paper introduces the theory and realizing steps of the optimization variable scale algorithm and then expatiate the application of the optimization variable scale method in logging interpretation, involving in the building of object function and the construction of formati.

In this article, the authors present the research on the object functions, subject conditions and resolve methods in the optimal methods of borer design.