| Paper Abstract and Keywords |
| Presentation |
2004-12-10 09:05
estimation and validation of age dependence of electric properties of biological tissue
Hiroki Kodama, Jianqing Wang, Osamu Fujiwara (NIT) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
It is becoming an important issue to make electromagnetic dosimetry in children due to their increasing use of portable telephones proliferating in our daily life. In this paper, we therefore investigated the age dependence of dielectric properties for living biological tissue. Based on Lichtenecker’s exponential law, at first we derived an empirical formula for the complex permittivity of various tissues as a function of the total body water (TBW). We then measured the frequency characteristics of the dielectric properties for forearms of 50 human subjects aged from 1.5 years old to 80 years old. As a result, we found that the measured results exhibited a compound dielectric properties including skin tissue, while they fell within the estimated ones of skin and 2/3 muscle tissues for all the subjects. Moreover, it was found that the age dependence of dielectric properties is small contrary to expectations, and there is no rapid increase in dielectric properties even at 1.5 years old. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Bio-electromagnetic environment / biological tissue / dielectric properties / Lichtenecker law / total body water (TBW) / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 499, EMCJ2004-102, pp. 1-6, Dec. 2004. |
| Paper # |
EMCJ2004-102 |
| Date of Issue |
2004-12-03 (EMCJ) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
EMCJ |
| Conference Date |
2004-12-09 - 2004-12-10 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Nagoya Institute of Technology |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
EMC Special Lecture by Guest Speakers from Asian Countries, etc. |
| Paper Information |
| Registration To |
EMCJ |
| Conference Code |
2004-12-EMCJ |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
estimation and validation of age dependence of electric properties of biological tissue |
| Sub Title (in English) |
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| Keyword(1) |
Bio-electromagnetic environment |
| Keyword(2) |
biological tissue |
| Keyword(3) |
dielectric properties |
| Keyword(4) |
Lichtenecker law |
| Keyword(5) |
total body water (TBW) |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Hiroki Kodama |
| 1st Author's Affiliation |
Nagoya Institute of Technology (NIT) |
| 2nd Author's Name |
Jianqing Wang |
| 2nd Author's Affiliation |
Nagoya Institute of Technology (NIT) |
| 3rd Author's Name |
Osamu Fujiwara |
| 3rd Author's Affiliation |
Nagoya Institute of Technology (NIT) |
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| Speaker |
Author-1 |
| Date Time |
2004-12-10 09:05:00 |
| Presentation Time |
25 minutes |
| Registration for |
EMCJ |
| Paper # |
EMCJ2004-102 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.499 |
| Page |
pp.1-6 |
| #Pages |
6 |
| Date of Issue |
2004-12-03 (EMCJ) |