Combining XML routing techniques with active interest management, this method adopts the bi-directional shared multicast tree as the communication topology, and performs active filtering and forwarding of datagram according to publish-subscribe pattern.

For layered video multicast in heterogeneous and dynamic networks, an adaptive layered video encoding mechanism based on merging feedback is presented, which is used to solve the problem of variation in network bandwidth constraints, and an active filtering technology in the network is introduced for solving the heterogeneous problem.

Then principles of search engine and two vertical search technologies,topic distillation and information extraction,are analyzed.

Experimental Investigation on the Dynamic Filtration of a Rotating Cylinder;

In this paper, much work has been done on the dyes and dyeing wastewater treatment by a new method of the combination of dynamic filtration using ceramic membrane with flocculation technology.

The influences of various flocculating agents, concentration, pH value and dynamic filtration on the pretreatment process for cisomicin fermentation broth were studied with orthogonal test and obtained optional technological condition of pretreatment process.

File Marking Based on File System Filter Driver;

Design of directory security control system based on file system filter driver;

Design of safety system of LAN based on file system filter driver;