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| Presentation | 2011-06-24 12:45 Statistical Analyses of Whole-Body Average SARs in Pregnant Woman with Fetus and Infant for vertically Polarized Far-Field Exposure. Ryota Asayama, Jianqing Wang, Osamu Fujiwara (NIT), Tomoaki Nagaoka, Soichi Watanabe (NICT)  EMCJ2011-37 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In 2006, WHO (World Health Organization) recommended the necessity of dosimetry evaluation for children and pregnant women with fetus as one of most primary research subjects, which has promoted the studies on whole-body-average specific absorption rates (WBA-SARs) in various kinds of numerical child models with respect to safety limits of WBA-SARs. For the present safety limits, however, they are being determined based on the behavior destruction of healthy adult animals for radio-frequency exposure, which are not being obtained for young or pregnant animals. Because of this reason, we think that it is necessary to study more absorption property in pregnant woman with fetus and infant for electromagnetic wave exposure. In this study, we calculated the WBA-SARs in anatomical models for pregnant woman with fetus and 3 years child, and statistically analyzed the voxel SARs at resonant frequencies. As a result, we found that the mean of the voxel SARs approximately agree with the WBA-SARs, and that the medians of the pregnant woman and 3-years child models are about 47 % and 55 %, respectively, smaller than their means. It was also found that the total number ratio of voxel SARs exceeding 99.7 % value of log-normal distribution or normal distribution is 0.41 % for the pregnant woman model, 0.39 % for the 3-years child model and 1.0 % for the fetus model. The finding implies that the FDTD method is likely to overestimate WBA-SARs due to the presence of voxel SARs with extreme values. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Far-field exposure / dosimetry / pregnant woman / infant / whole-body average SAR / statistic / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 99, EMCJ2011-37, pp. 19-23, June 2011. | |
| Paper # | EMCJ2011-37 | |
| Date of Issue | 2011-06-17 (EMCJ) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EMCJ2011-37 |
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| Conference Information | |
| Committee | EMCJ IEE-EMC |
| Conference Date | 2011-06-24 - 2011-06-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Circuit, EMC, etc. |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2011-06-EMCJ-EMC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Statistical Analyses of Whole-Body Average SARs in Pregnant Woman with Fetus and Infant for vertically Polarized Far-Field Exposure. |
| Sub Title (in English) | |
| Keyword(1) | Far-field exposure |
| Keyword(2) | dosimetry |
| Keyword(3) | pregnant woman |
| Keyword(4) | infant |
| Keyword(5) | whole-body average SAR |
| Keyword(6) | statistic |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ryota Asayama |
| 1st Author's Affiliation | Graduate School of Nagoya Institute of Technology (NIT) |
| 2nd Author's Name | Jianqing Wang |
| 2nd Author's Affiliation | Graduate School of Nagoya Institute of Technology (NIT) |
| 3rd Author's Name | Osamu Fujiwara |
| 3rd Author's Affiliation | Graduate School of Nagoya Institute of Technology (NIT) |
| 4th Author's Name | Tomoaki Nagaoka |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 5th Author's Name | Soichi Watanabe |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | 1 |
| Date Time | 2011-06-24 12:45:00 |
| Presentation Time | 25 |
| Registration for | EMCJ |
| Paper # | IEICE-EMCJ2011-37 |
| Volume (vol) | IEICE-111 |
| Number (no) | no.99 |
| Page | pp.19-23 |
| #Pages | IEICE-5 |
| Date of Issue | IEICE-EMCJ-2011-06-17 |
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