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Higher specific absorption rate (SAR) values have been found in children when exposed to RF sources. It is worth noting that mass densities of each of the tissues is always used as of that of an adult person, despite the evident difference of tissue dielectric values due to the difference of water contents in each development stage. Some researchers have reported that children may exhibit higher SAR...
The basic operation principle of microwave oscillators, such as magnetrons, is based on the motion of electrons under a combined influence of electric and magnetic fields. In such process, the DC energy is converted into the RF energy via the interaction process between the electrons and the surrounding electromagnetic field. This nonlinear process provides sufficient conditions in generating rather...
In this paper, the FEM (finite element method) for the quasi static condition has been applied to evaluate the EM field interaction with the cells in different shapes, such as ellipsoid. The influences of the cells shape and its orientation to the applied electric field have been assessed. The results obtained have cast light on a number of observations in the process of electroporation.
Ground penetrating radar (GPR) waves in inhomogeneous medium are analyzed by numerical methods in this paper. The theory analysis provides physical interpretation of a calculation model for characteristics of subsurface layers. In this model, the thickness and permittivity of subsurface layers would be estimated by traveling time of reflection wave in GPR measurement. A 3-D finite-difference time-domain...
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