Firstly, an interval-based SLF model with the multi-layer decomposition structure is set up, which divides forecasting units into gross load layer, data collection layer and simulation layer.

By the discussion on radon migration and release which appears when coal bed combusts spontaneously,to the underground multi-storey fire area which has come in Wangcun coal mine of Daning coalfield,this paper has applied the radon measure technique and induced polarization method and determined the position and limit of underground multi-storey fire area.

Scheme of mobile IP applied on multi-tier cellular structure;

But the studying of mobile IP is almost not consider the real mobile communications network structure,especially the multi-tier cellular structure which is more and more dominate in the mobile communications network.

Tentative idea on layering and zoning of Anhui 500 kV/200 kV grids;

It also presents studies on the layering and zoning of the electric network,and expounds urgency for layering and zoning for Anhui electric networks.

In this power,the necessity of grid layering and zoning as well as the primary technical principles are discussed.

In its different developing stage,the operation mode of electromagnetic loop network and voltage-grading & district-dividing appear respectively.