High-level vortex in subtropical zone and effect on tracks of typhoon 9418;

This paper introduces the advanced turbo-fan engine key design technologies research on air system, components thermal analysis, cooling of turbine blade and new type double-wall castcool high efficient cooling turbine blade in china gas turbine establishment.

Sri Lanka cold eddy and its generation mechanism analysis;

Three-dimension temperature structure of cold eddy-upwelling system off northeastern Taiwan Island in summer and winter;

Based on the historical marine observational data, the basic conditions of the cold eddy in the sea area northeast of Taiwan are analysed, which include the seasonal variations, pattern , structure and other characteristics.

Comparative analysis of two typical hail weather in Ningxia under influence of cold vortex over Mongolia;

Analysis of squall lines occurrign in cold vortexes over Northeast China;

The rainstorm usually occurs in the developing stage of northeast cold vortex,not in the declining phase.

The effect of upper tropospheric perturbation PV on the development of the South-West Meso-cyclogenesis is discussed on Hoskins PV Principle in terms of conservation of PV on isobaric surface and humid isentropic PV.