In order to develop an effective analytical and monitoring method in breeding rice varieties with higher resistance stability to brown planthopper (BPH), Tai’s method (1971) was employed to estimate the resistance stability of twelve rice varieties to different biotypes of BPH.

Extraction of protamine from carp spermary and its antibacterial stability;

The traditional definite dam safe monitoring target method all used the small distortion and the continuous supposition,we can not regard the stability against sliding of the gravity dam and the deformation of the dam organically combined.

Based on a series of the site testing for stability of retaining wall,this paper presents the action of a notched sill and affection of the various depth of notched sill for the stability against sliding.

An application of the new program to analyze the stability against sliding of Xiangjiaba gravity dam is presented.

The results of anti-sliding stability analyses on an upstream gangue-dam have been used in this present paper to make simultaneous analyses on the effects of heitening the dam saturation line condition, operation state of drainage system and reduced lens on the anti-sliding stability of the gangue dam.

Study for the wind-resistant stability in Hemaxi extra dosed bridge with single plane cable;

Structural dynamic behavior and wind-resistant stability of both most single and double cantilevers as well as whole bridge are analyzed in the construction of the PC cable-stayed bridge.

It is very important about how to enhance the wind-resistant stability and ensure safety during design and construction of suspension bridge.