Focused on the improvement of the aerosol radiative forcing parameterization in atmospheric numerical model, the paper discussed the influence of urban aerosol radiative effect on atmospheric boundary layer (ABL) over Lanzhou based on some previous researches, and performed some corresponding numerical simulations using the WRFABL model system, which was made up of nested model WRFv2.

Using new lidar data and a comprehensive model system through idealized numerical experiments, it was investigated that the interaction between urban aerosol radiative effect and atmospheric boundary layer (ABL) in the typical winter weather condition of Lanzhou over complex terrain.

Numerical simulation of welding aerosol diffusion in welded structure workshop;

A large number of particulate sizes of welding aerosols is measured by means of DMPS method.

Spot test proves that welding aerosols can be directly sampled.

Modeling of spraying velocity for welding aerosols;

Particulate groups in the form of non normal distribution are proved to exist in welding aerosols through processing the samples of practical determined welding particulate sizes.

Gross quantity effect is subdivided into direct effect and indirect effect.

In a short term,the newly-increased FDI can bring indirect effect on employment,but in the long run,domestic investment can partly push the indirect employment effect of FDI aside.