This paper has discussed the selectivity of the marine fishing in the whole world, especial for the fishing gear selectivity, and considering the fact that in the process of catching shrimps TanZi net catches a lot of young fishes simultaneously and the selectivity is bad, an experiment applies the selectivity of split net and designs a separating device for fishes and shrimps.

Study on Supplementary Teaching by Using BBS;

Multi-Communication Types and Management of BBS;

Crisis Prevention and Cure on the School's BBS

The research is aiming to probe the tutoring style and its influence of E-tutors in network forum with pre-working teachers.

Network forum action analysis has important significance to the management and development of network forum.

With the rapid development of network technology,the university network forums have gradually become an important platform for information exchanges,a barometer for trends of social thought,and a convergent center for public opinions in universities.

Based on an extensive and deep investigation of the Qingdao coastline, the write r studied the production of the stake net referring to the newest achievements a nd tendency on marine fishing technology.

Research on influence factors of information system bidirectional transfer of knowledge based on the internet forum;

The Development of the Internet Forum at the Present Time in China and Restructuring to "Life" of the Public Sphere;

Study on Communication Management of Internet Forum;