Analyze existent problem of artificial intelligence studying present based of introducing artificial intelligence various cognize concepts,Putting forward people should knows the new theories breakthrough and practice project from the energy and the energy feeling and designs from the innovation and the faultiness design etc.

In view of the problems occurred in the HP system during the startup of urea plant, analyzes that the reasons are the design defects resulting in lower stripping efficiency of stripper.

Primary construction stage,such connatural defects as structure integrity,dam concrete strength and foundation sliding stability caused by survey & design defects and construction management limition,reduce relibility of huge dam which is unmeet to the social economy requirement of our country.

Nevertheless, 402A, created to deal with liability for manufacturing defects, could not appropriately be applied to cases of design defects or defects based on inadequate instructions or warnings.

Analysis on design defect of hydraulic-operated breakers of GIS and treatment measures

Analyzes the design defects of ammonia condenser in SNAM ammonia stripping process urea plant and provides the improvement methods.

The unexpected resetting of MAX 1000 DCS output participation module was analyzed and design deficiency was found in application of Forceback function.

After the randomness and the fuzziness are analyzed and the concept of zero defect design is defined, the theory of zero defect design based on fuzzy probability is proposed and the corresponding mathematical model is built.