In process operation,dissolved oxygen requirement of each unit in biological reactor was ensured by taking effective adjustment and control measures,and well operation parameter control range was obtained.

Comparison of effect of different running processes of membrane bioreactor;

Performance or Art: Cultural Perspective of Contemporary China "Performance Art";

As a new art form, performance art brings the deepness of self-reflection for the audience wherewith its strong visual impact and effectiveness of Ancient form of acupuncture evil of the age.

Performance Art in China starts from the“85 New Tide”in the 1980s.

Criticism on behavior art of post-modernism and its remark;

Behavior art spreads to China from the West, not only widened the Chinese artist\'s field of vision, moreover has developed the artistic creation space greatly.

But when the action art showing is fixed in photograph or imagery by a cameraman,it is a designing expressive format and a works of copyright,which is protected by the copyright law base on the fixed form.

College students action art has developed swiftly and violently in recent years,which adds vigor to the Street Culture and meanwhile causes all educators to think.

The particularities of the carrier and intermedium in the course of concept promulgation of action artt,it emphasizes that,in order to promote the progress of action art,a good concept should be first built up.