Although the pattern of human and birds combination is not uncommon in the early cultural relics of human history,but the one in Sanxingdui Culture has a unique character,which is manifested by the great number of the artifact,the special material and special way of sculpting,and also by the pattern of the homotype of human and birds,and of birds disguised by human in the artifacts,which can .

The bird and fish combinations on the Han stone reliefs,which are various in form and rich in meaning,can be classified into three groups.

This paper analyzes and compares the computer graphical methods representing geological symbols ( especially lithotype notations ) with each other, and presents a new comprehensive method-graphical element composition method and its classified code scheme for the computer graphical definition of geological symbols based on analyzin.

This paper describes a software for parameter design of common composite figures.

On lower bound of feedback vertex set of (n,k)-star graph;

A spanning tree of optimal height is obtained in(n,k)-star graph networks.

In this paper,we present a angorithm to find a faultless path st of length at most D(S_(n,k))+4 in O(n) time,given at most n-2 faulty nodes,also two distinct faultless nodes s and t in the (n,k)-star graph,where D(S_(n,k)) is the diameter of S_(n,k).