Aimed at different understanding and view point,based on precise level monitoring,GPS techniques and systematic analysis of in situ monitoring data of scores of years,the authors put forward a perspective of surface subsidence has certain self recoverable capability,summed up the range of surface recoverable subsidence threshold,narrated rational method and in situ monitoring essentials.

The simulated signal and vibration signal of on-spot trolley track joints were denoised separately by wavelet threshold denoising.

In this paper,we introduced a kind of wavelet threshold denoising method which is proved to be efficient in application.

In the paper,influence of microwave treatment on germination rate and qulity of wheat grain has been studied;the relations between power per gram,temperature and germination rate of wheat grain,SDS sedimentation volume has been analysesed;and the process parameters of icrowave drying of wheat grain has been established,based on three srains in different type.

This paper provided a universal view on the correlation between glutenin subunits in wheat and SDS sedimentation volume,protein contain,bread baking quality,dough strength and extensibility,and proposed to speed up the improvement of the wheat quality by introducing the glutenin subunits with high quality.

The results showed that the diameter and the volume of steamed bread had great positive correlation with the gluten content in wheat flour,that the ratio of diameter and height of steamed bread had great negative correlation with dough stability time,and that the volume and height of steamed bread had good correlation with sedimentation value.

The total protein content of the grain,the prolamine content and the sedimentation value all negatively correlated with TOM respectively.

The study is mainly to test wheat traits such as wet gluten,sedimentation value and stability in southern area of Huanghuai in 2002.