Capacity model of the minor mixed traffic flow under major stream with shifted negative exponential distribution on the unsignalized intersection is set up, and it is an extension of capacity model for mixed traffic flow.

All indicators were actually measured and the diameter structure was imitated by the application of Weibull distribution function and Maiyiefu Index distribution function.

Research on two-parameter negative exponential distribution of discontinuity spacings in rock mass

Used the interpolation to obtain the droplet the diameter distribution map and calculated the droplet diameters distribution index.

Terrain niche index was used to describe the regional terrain difference and nondimensio-nal distribution index was used to quantitatively analyze the spatial distribution characteristics based on the spatial information of landscape components.

The terrain factors(elevation,slope and aspect) and distribution index was overlapped to quantitatively analyse the region soil erosion,which could study the soil erosion spatial distribution from terrains factors(elevation,slope and aspect).