Study on silver carp stocking for controlling water bloom in urban rivers and lakes of Beijing;

Plankton community and primary productivity in waters for culturing freshwater pearl mussel(Hyriopsis cumingii) under different stockings and management models;

Those results suggest that the product of free range keeping method nearly reach market body weight standard and has a similar productivity with that of intensive poultry raising.

The effects of recurring liquid on the water permeability and chorine ion permeability of a high strength concrete(HSC) containing polypropylene and two other admixtures after calcination at high temperature were investigated.