This paper proposes one kind of improved Gabor transformation based image texture enhancement algorithm,which transforms the texture picture of the space domain to the united spatial frequency domain,and takes the energy distribution as the characteristic of the hand print.

A Fingerprint Enhancement Algorithm Based on Wavelet Transform and Filter in Frequency Domain;

Improved algorithm for fingerprint enhancement based on Gaussian filtering and reliability discriminant;

The ridge distance of fingerprints is an essential attribute of fingerprints,and an important parameter used in popular fingerprint enhancement algorithms.

By proper dispersion and hot pressing injection of the mixture, the Al2O3/SiO2 ceramic cores nano-composites were prepared, and the strengthening mechanism were studied.

This paper expounds the strengthening mechanism of steel fiber concrete,and connecting with the example of the application of steel fiber concrete in the beam pavement construction in Haikou Prefabricated Beam Plant,discusses on the optimum design scheme of the mixture ratio of the steel fiber concrete,and sums up the features of the construction techniques.

The article briefs the application of post pressure grouting to bored pile by describing the strengthening mechanism of pressure grouting to the resistance at pile side and pile end and by presenting quality-control essentials of post pressure grouting.

Study on reinforcement mechanism of short fiber/rubber foam composite;