Application of the relief amplitude and slope analysis to regional landslide hazard assessments;

Algorithm Comparison of Slope and Aspect from DEM;

Water and Soil Conservation Measures for Different Slope Land in Red-Earth Hilly Region;

Studies on hill slope gradient calculated with other factors on river basin;

Comments on the gradient's impact mechanism during a railway tunnel fire

Numerical simulation study the gradient's impact on the tunnel fire

Assessment on WEPP model applicability(Hillslope version) to hill-gully region of the Loess Plateau——A case study in slope gradient factor;

Contribution of strata lithology and slope gradient to landslides triggered by Wenchuan Ms 8 earthquake,Sichuan,China

By spatial overlay analysis of slope gradient and vegetation index,it was found t.

The greater slope degree is,the more instable surface material is.

Three replications(10°,15° and 20° slope degree,separately) with the following five land cover types were investigated: cropland(Triticum aestivum L.

At the same time, effects of slope degree and PAM coverage on the critical shear stresses were analyzed.

Effects of slope grade and cover of Robinia pseudoacacia on runoff and soil loss from loess slopes under simulated rainfall;

The terrain factors (slope grade,slope aspect,shade,isotropic sky view factor) were calculated using the domestic and overseas estimating methods of solar radiation and digital elevation model (DEM) so that the more precise model than existing eodels was derived.

The changing characters of runoff,mud and sand in different grade red soil slope in artificial rainfall precipitation condition;

The article puts forward the design method of grade in marshalling yard, pass to analyse the running characteristic of different wagons in marshalling yard.

On the basis of analyzing the massive measured data of operating speed on two-lane secondary highways for gradient sections with different grades and slope lengths,the operation rules of vehicles were obtained.