Abstract The modeling and multi-energy flow calculation of an integrated energy system (IES) are the bases its operation planning. This paper establishes models various sub-systems coupling equipment for electricity-gas-thermal IES, model IES is constructed. A simplified method compressor in a natural gas network, one which not included loop works constant compression ratio mode, also proposed ...

We describe a hybrid method which combines the boundary element method (BEM) and the finite element method (FEM) to compute circuit models for layout dependent capacitances. The method can handle irregularities in the stratification of the layout of the integrated circuits (IC’s). New in the method are the models for the interface between the regions where the BEM and the FEM are applied. We sh...

large quantities of radiopharmaceuticals prescribed for treatment and diagnosis are excreted through kidney. therefore, radiation unwanted dose is created in kidney. as a result, exact calculation of prescribed radiopharmaceuticals amount is important. monte carlo method is used for simulation of radiation transport in body due to random nature of radiation. in this research, for the first time...