Based on the theory gist of the absolute curvature difference curve′s application in damage localization,the cantilever beam′s finite model was taken as an example to lucubrate the damage localization effects using absolute curvature difference curves and the curve traits.

By comparison with the results of ideal Henon sequence mixed with noise,the improved Farmer algorithm is able to increase the precision of noise attenuation and reduce the absolute error between itself and ideal Henon sequ.

According to original laser measure error and error analysis transfer expressions,calculations about absolute errors and relative errors of the measuring deformation of wing were performed.

It may measure the frequency and phase of the signal which begin from 10 Hz to 20 kHz,absolute error isn′t more than 1°.

Method based on absolute deviation for multi-sensor target recognition;

Then the lower moment instead of the second moment is used to build the mean-absolute deviation,and the model is modified.

this paper through use the econometrics tool,make key analysis to regional difference states of Henan from 1997 to 2006,the conclusion is: Absolute difference increase constantly,relative difference increase in the form of wave,overall difference in expand constantly level,after these,this paper utilize SPSS11.

Through the analysis of time-series change, the author has discovered that both absolute difference and relative difference had extended, detailedly, abso.

Through the analysis of time-series change, the author has discovered that both absolute difference and relative difference had extended.