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Solving electromagnetic (EM) problems with thin conducting objects by integral equation approach could encounter some unfavorable factors. The individual electric field integral equation (EFIE) and magnetic field integral equation (MFIE) may deteriorate the conditioning of matrix equations due to their degeneration when the thickness reduces. Also, there are more evaluations of near-singular integrals...
Based on the analysis of the factors which affect the computing efficiency of the ray tracing method, an accelerate method of ray tracing method which can be used in open geographic environment was proposed. This method divided the whole terrain into small terrains, then chose the suit terrain which the ray emitted into after the analysis of ray features, so the number of intersection calculation...
Abstract-this paper presents an interest - based mobility model in order to portray the social property of opportunistic networks. In this model, mobile node and the geographical area is assigned to a multi-dimensional interest vector, and the probability of a region is selected as the moving target by a node is related with the inner product of two interest vectors and geographical distance between...
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