In the view of unusual motion of typhoon Haitang that anticlockwise revolve suddenly when it close to landing at the alongshore in northeast of Taiwan,we used weather map and radar data,analyzed the ambient field and character of typhoon eddy structure,explored the effect of topography of Taiwan Hualian and asymmetric structure of typhoon on the typhoon track.

Analysis of numerical experiment of terrain effects in the course of two kinds of precipitation in SongHua and Lin valley;

The category differentiation of gold deposits in eastern sector of the north fringe of North China Platform and the basic features of the gold deposits originated in different eras;

Sequence stratigraphy of the Late Cambrian strata on the North China platform and the correlation of the sea-level changes with the North America platform;

The Brachiopod Indicator on the Permo-Carboniferous Boundary in the North China Platform;

Hydrocarbon Potential of Paleozoic Marine Sequence in Northern China;

Water resource crisis and the way overcoming it in Northern China.;

Investigation of Type Selection of Medium Speed Pulverizer Used in Thermal Power Plants in Northern China;