In the model,antigen/antibody was classified by consanguinity,the procedure of antigen apoptosis and necrosis were defined,and both danger signal and risk of network were calculated.

To increase the detection ability of unknown intrusion and overcome false negative rate and false positive rate when boundary between normal and abnormal was fuzzy and improve the adaptability of intrusion detection system,a co-stimulate intrusion detection with danger signal based on danger theory was presented.

The paper analyzes the primitive mechanism of the danger theory,according to the features of processing danger signal,an intrusion detection model is presented based on the mathematical statistics matching algorithm which is originated from the HAMMING distance of character string,in order to optimize the method of generating coordinate signal and to operate the matching of antigen and antibody.

An automatic control system for vehicle hazard lamp is developed,which can automatically switch on the hazard lamp during emergency braking and switch it off when the hazard is eliminated.

This paper analyzes on reasons of accounting credit crisis occurri ng and its grave result, puts forward the ways of solving accounting credit crisis from aspects of strengthening legal system construction and dynamics of governm ental supervision, perfecting social supervision and appraisal mechanism, enhanc ing credit education, etc.

In today of economic globalization, the credit crisis breaks out in t he world, and rebuilding enterprise culture is a pressing mater of the moment.

Because credit crisis inflenced and prevented the healthy development of economic market in our country,general secretary Hu Jintao proposed "eight-honours and eight-disgraces" which provided powerful support for reshaping credit.