At first,this paper introduces the last results of knowledge presenting and reasoning,basic conception and research methods of nonmonotony. Then,we enlarge abil
It is important to generate random number in cryptography. In this paper, we design Pseu-do-random Bit Generator (PRBG), based on Rijndael with a block length o
The Web is based on a browsing paradigm that makes it difficult to retrieve compositive information from multiple sites. Web information integration systems,as
The paper presents a new dynamic Multicast Routing algorithm. Then some experiments have been given to analyze the performances. The result shows that the routi