As the inductor is a design variable,the problem that the lumped-element microwave bandpass filter spend much time on the electromagnetic simulation process is solved.

Mathematically, the state equations governing vibration isolation behaviors of the PHEMs are presented and solved by means of the lumped parameter method and the bond graph procedure.

In order to investigate dynamic characteristics of airliner cabin humidity in flight,a dynamic model was established,by means of Lumped Parameter Method with physical analysis and logical simplification.

Not only the zero-sequence lumped parameters of the transmission lines but also the distributed ones are needed to measure.

Using deviation data,well data,layering data,sand body data,well logging interpretation data and interbed data,its function includes deviation correction,statistics of sand body thickness and sand-shale ratios,interbed data computation,interbed deduction and net computation,zoning statistics of reserve parameters,coordinate selection,and data format translation between common softwares.