Porcelain sand filter material, a new kind of artificial filter material used in the process of water treatment, possesses excellent physical properties and chemical stability and very good application prospect in industrial water treatment.

A technique consisting of aquatic plants,artificial fillers and immobilized nitrogen cycling bacteria(INCB)was adopted in situ purifying contaminated Xinyi River in fall and winter seasons.

The optimized artificial diet of the rice stem borer, Chilo suppressalis;

Primary study on artificial diet for Chilocorus kuwanae adults;

Optimizing the artificial diet composition for the rice stem borer, Chilo suppressalis, by orthogonal design;

Objective To investigate the related factors,precautionary measures and the treatment of infection after artificial material implantation.

Objective To study in-vitro compatibility between artificial materials and tendon cells as well as the growth of the tendon cells on the artificial materials.

The BESO method based on artificial material is improved and the error of artificial material elements’ stress sensitivity number is limited within 5% in the thesis.

Technology improvement of artificial aggregate processing systemof Xiluodu hydropower station;

Selection of artificial aggregate of dam concrete for Xiluodu Hydroelectric Power Station;

Application of cave blasting technology to raw material quarrying for artificial aggregate processing system