In order to increase the aggregate capacity of wireless mesh networks and make fully use of the wireless resources,multi-channel MAC is the trend of the research on MAC protocol.

Based on this,this paper brings forward the combination of zero threshold blog application and content aggregation functions and the construction of convenient blog-assisted learning platform.

At last,we discuss the metadata framework of content aggregation in Web 2.

Studies on Heavy Metal Copper Complexation Capacity in the Surface Seawater of the Yellow Sea;

Using anodic stripping voltammetry (ASV),the apparent copper complexation capacity (ACuCC), conditional stability constant (K) and the complexation capacity index (CCI) of 12 seawater samples collected in the North of Bohai Bay in 2003 were investigated and calculated.

The complexation capacity of water samples in Guanting reservoir waters were determined by differential pulse anodic stripping voltammetry with a double acidification method (DAM-DPASV).

Determination of lead apparent complexing capacity of the natural water in Inner Mongolia has been studied by ASV.

Using dithizone as a competing ligand,a dynamic extraction method for determining cadmium complexing capacity (CdCC) and cadmium complex lability (kobsd) of natural waters was established.

The research of improving the chitosan iron(Ⅱ) complexing capacity;