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This paper presents various voxel human models developed for electromagnetic dosimetry of new wireless technologies. In addition to the voxel human models, we also present numerical simulation results of the new wireless technologies, e.g., wireless power transmission system, and measurement of biological tissues and organs of millimeter-wave region and inter-mediate frequency region.
Since the diversification of the electromagnetic (EM) environment is spreading, it is essential to estimate the EM energy absorption rate [specific absorption rate (SAR)] of a pregnant woman's body and her fetus under various exposure situations. For example, if pregnant women work in jobs where they might wear business portable radios around their abdomens, they should also be concerned about this...
Recently, there has been an increased concern regarding the effects of electromagnetic radiation emanating from wireless communication devices on the health of children. In order to determine safe levels of exposure, we intend to use computer simulations and numerical human models to estimate the specific absorption rate (SAR) in young children. However, only a few of the existing numerical models...
The aim of this paper is to present an experimental investigation of the specific absorption rate (SAR) in a spherical phantom head when operating a mobile phone close to a metallic wall. The mobile phone is modeled as a half-wavelength dipole antenna. The effect of the wall on the peak 10-g SAR and input characteristics of the antenna for two wall orientations are measured. The antenna is set to...
The numerical dosimetry of women during pregnancy is an important issue in electromagnetic field safety. We had developed a whole-body numerical pregnant-woman model at 26-weeks' gestation. In this study, we developed pregnant-woman models that included the inherent tissues of pregnant women adjusted to the standard reference values at 12- and 20-weeks' gestation by deforming the existing pregnant-woman...
In this paper, the dosimetry for pregnant rats and their fetuses in an in vivo exposure setup is conducted by using the finite-difference time-domain (FDTD) method in conjunction with anatomically based pregnant rat models. The exposure setup has been developed for testing possible indirect biological effects on fetuses when the pregnant rats are exposed to 1.95- GHz digital cellular phones. As a...
As the diversification of the electromagnetic (EM) environment is spreading, it is essential to estimate the EM exposure in the mother's body and her fetus for pregnant women under various situations. This paper presents the development of the numerical model of a 7-month pregnant woman (composed of 56 organs, which includes inherent organs of pregnant woman) based on the high-resolution whole-body...
The numerical dosimetry of pregnant women is one of the most important issues in electromagnetic-field safety. We have recently developed a whole-body numerical female model of an adult Japanese (non-pregnant) average figure. Therefore, a new fetus model including inherent tissues of pregnant women was constructed based on abdominal MRI data of a 7-month pregnant woman. A whole-body pregnant woman...
The numerical dosimetry of pregnant women is one of the most important issues in electromagnetic-field safety. We have recently developed a whole-body numerical female model of an adult Japanese (non-pregnant) average figure. Therefore, a new fetus model including inherent tissues of pregnant women was constructed based on abdominal MRI data of a 7-month pregnant woman. A whole-body pregnant woman...
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