Combined with wide application of concrete structure the factors influencing the reliability of concrete structure are analyzed and discussed, which include uncertain factors,security level of structure,personal errors,cracking,deformation,durability and so on in order to promote the study on the reliability of concrete structure and ensure engineering quality of concrete structure.

After the new specification\'s come into operation, the design security level of reinforced concrete anti -seismic structure has improved, but in the practical engineering, structure cracks appears more and more, and hard to control.

Economic analysis on relationship between seafood safety standard and international trade;

Situation of the safety standard system of condiments in China;

Discussion on orientation of Chinese pork safety standard;

Case Analyses on the Response to Aquatic Foods Safety Standard Crises

Discussion on the safety criterion of blasting vibration considering the effect of vibration frequency;

Influence factors of blasting vibration on safety criterion for the freshly placed foundation concrete;

Using system technique theory terminology, we develop the concept and definition of safety criterion of cutting process stability operation for traditional, statistical and fuzzy stochastic meaning, establish the testing value curves of the fuzzy allowed domain of the limited cutting width in the light of experiment in this paper.

This failure mode has long been disregarded by all the design standards of arch dams, thus resulting in the failur of arch dams which could not be prevented, secondly, a safety criterion to guarantee the safety against upsliding is proposed, by which it is demonstrated that the two casehistories of Malpasset and Maihua arch dams are all of typical upsliding failures.