In the two Jins and the Northern and Southern Dynasties,"the post held by Bai Yi" was a punishment way,it was completely different from "removal officers".

A study on the optimization of collar structure design;

The article probes into collars′ cultural contains,digs the intension of the collar culture,opens up the epitaxy of the collar culture,grasps the culture background of the collar and inside information of culture better in order to unlock the vision further,expand the train of thought and distillatie the beauty of collar.

The key of the research in Collar's Pattern Auto-generation Expert System is to establish a collar's 3D basic model and to get the 2D structure and pattern of the collar on the basis of this.

With plate-making prototype,this paper has conducted an experiment to analyze the four types of plate-making methods and garments tailoring effect about Siamese-cowl with no-crepe-on-shoulder neck on women s upper dress,and has explored the basic principles of designing Siamese-cowl and the methods of achieving the effect of hanging down.