Simultaneous fall of a larger rock block containing many fragments will transfer larger impact force on the rock shed than that of rock blocks with fragments gradually fall down in series.

Studies on the land banking mechanism & investment and compensation for Chongming Bridge & Tunnel Project;

His statecraft ideology,closely linked with his theory of insightful reason-explaining,focused on moral enlightenment and thus possessed distinctive personality.

The proper voltage of power supply and its optimal control for city road lighting energy conservation;

Principle and method for road lighting design in factory;

Effectiveness analysis of energy-saving method in road lighting;