The factors affecting zone broadening in capillary electrophoresis - amperometric detection (CE/ AD) at a disk-shaped electrode were theoretically analysed, and a model equation about it was given.

In this paper, the unconstant surface mobility effect of MOSFET in the wide temperature range from 27℃ to 300℃ is deeply studied on the base of investigation of the high temperature models of fundamental physical parameters in silicon and the fundamental characteristics of the MOSFET.

In this paper,thinking of the existence of leakage current,we make out a simple analytical model of CMOS inverter s input and output feature in wide temperature range We find out the main factors that limit the high temperature performance of CMOS circuits Finally,this model is testified by the experiments result

In light of the living example of the business expansion of China Unicom Xuzhou Branch broadband networks estates,discussion is held on strengthening the telecommunication operation marketing and improving the service abilities to make it better prop up the rapid growth of the broadband networks industry.