Discussion on technological superiority of the sliding block placing at fixed half of mould for reusable container;

In consideration of the difference between two parts,insert blocks on moving half and fixed half were combined;and the compounded core-pulling of slanted pushing rod,dog-leg cam and slide block was applied to finish the demoulding of internal and external side concave.

Design of ejection device of fixed mold in injection mold;

An innovated quantitative model of the optimal resource allocation in case of emergency;

Study on stranded crowd number quantitative model of stadium crowd evacuation;

According to mass balance model and the assumption that before 137Cs in plow layer was mixed for a uniform distribution,the surface of cultivated soil would form a surface enrichment layer,a quantitative model was developed to relate the amount of 137Cs enrichment from the cultivated soil profile to soil deposition rate.

Three dimensional quantitative simulations on the formation and evolution of aeolian sand ripples and sand dunes are presented.