論文 - 小寺 紗千子
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Effect of a lens protein in low-temperature culture of novel immortalized human lens epithelial cells (iHLEC-NY2) 査読あり
N. Yamamoto, S. Takeda, N. Hatsusaka, N. Hiramatsu, N. Nagai, S. Deguchi, Y. Nakazawa, T. Takata, S. Kodera, A. Hirata, E. Kubo, and H. Sasaki
cells 9 2970 2020年12月
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Evaluation of SAR and temperature rise in human hand due to contact current from 100 kHz to 100 MHz 査読あり 国際共著
T. Murakawa, Y. Diao, E. A. Rashed, S. Kodera, Y. Tanaka, Y. Kamimura, S. Kitamura, S. Uehara, Y. Otaka, A. Hirata
IEEE Acccess 200995 - 201004 2020年11月
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A. Hirata, S. Kodera 招待あり 査読あり
Difference of ICNIRP guidelines and IEEE C95. 1 standard for human protection from radio-frequency exposures
2020 International Symposium on Electromagnetic Compatibility-EMC EUROPE 2020年09月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Correlation between estimated thermoregulatory responses and pacing in athletes during marathon 査読あり 国際共著
S. Kodera, T. Kamiya, T. Miyazawa, A. Hirata
IEEE Acccess 173079 - 173091 2020年09月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Model-based approach for analyzing prevalence of nuclear cataracts in elderly residents 査読あり 国際共著
S. Kodera, A. Hirata, F. Miura, E. A. Rashed, N. Hatsusaka, N. Yamamoto, E. Kubo, and H. Sasaki
Computers in Biology and Medicine 126 104009 2020年09月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Correlation between COVID-19 morbidity and mortality rates in Japan and local population density, temperature, and absolute humidity 査読あり
S. Kodera, E. A. Rashed, and A. Hirata
International Journal of Environmental Research and Public Health 17 5477 2020年07月
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Influence of absolute humidity and population density on COVID-19 spread and decay durations: Multi-prefecture study in Japan 査読あり
E. A. Rashed, S. Kodera, J. Gomez-Tames, and A. Hirata
International Journal of Environmental Research and Public Health 17 5354 2020年07月
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Estimation of time-course core temperature and water loss in realistic adult and child models with urban micrometeorology prediction 査読あり
T. Kamiya, R. Onishi, S. Kodera, and A. Hirata
International Journal of Environmental Research and Public Health 16 5097 2019年12月
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Estimation of heat-related morbidity from weather data: A computational study in three prefectures of Japan over 2013–2018 査読あり
S. Kodera, T. Nishimura, E. Rashed, K. Hasegawa, I. Takeuchi, R. Egawa, H. Sasaki, and A. Hirata
Environment International 130 104907 2019年09月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Permissible SA and Radiant Exposure for Brief Exposure in GHz Region
Sachiko Kodera, Akimasa Hirata
EMC Europe 2019 - 2019 International Symposium on Electromagnetic Compatibility 1020 - 1024 2019年09月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Institute of Electrical and Electronics Engineers Inc.
The specific absorption rate (SAR) averaged over 10 g of tissue is used as a physical quantity to prevent local temperature elevation in the international guidelines for constant exposure to radio-frequency electromagnetic fields. The averaging time of SAR is set to 6 min for local exposure. The ICNIRP public consultation document introduced a new physical quantity, absorbed power density (APD), as the basic restriction above 6 GHz. In addition, the limit for the specific absorption (SA) and absorbed energy density (AED) were set to avoid heating for brief exposures (shorter than the averaging time of 6 min). If all the energy for the averaging time of 6 min for continuous wave are concentrated into short duration and multiple pulse exposures, the local temperature elevation for the pulse(s) may exceeds that of exposure at almost constant exposure although it satisfies the limit for the SAR/APD. The purpose of this study is to determine how best to set the metric in order to limit temperature rise from brief exposures. We first confirmed that the peak temperature elevation for brief pulse exceeds the steady-state temperature for continuous exposure. We then proposed the limit energy density from the regression curve depending on the exposure duration of brief-pulse(s). The time course of temperature elevation in the multi-layer cube model was computed for typical scenarios of multiple pulses exposures. The SA and AED based on the regression curve can be used as a metric to prevent excess temperature elevation for different brief exposure scenario.
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5G communications systems and radiofrequency exposure limits 招待あり 国際共著
K. R. Foster, S. Kodera, and A. Hirata
IEEE Future Networks Tech Focus 3 ( 2 ) 2019年09月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Different thermoregulatory responses of people from tropical and temperate zones: A computational study 査読あり
T. Kamiya, S. Kodera, K. Hasegawa, R. Egawa, H. Sasaki, and A. Hirata
Building and Environment 159 106152 2019年07月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Setting exposure guidelines and product safety standards for radio-frequency exposure at frequencies above 6 GHz: brief review 招待あり 査読あり
A. Hirata, D. Funahashi, and S. Kodera
Annals of Telecommunications 74 17 - 24 2019年01月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Area-averaged transmitted power density at skin surface as metric to estimate surface temperature elevation 査読あり 国際共著
D. Funahashi, A. Hirata, S. Kodera, and K. R. Foster
IEEE Acccess 6 77665 - 77674 2018年11月
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Temperature rise for brief radio-frequency exposure below 6 GHz 査読あり 国際共著
S. Kodera, A. Hirata, D. Funahashi, S. Watanabe, K. Jokela, and R. J. Croft
IEEE Acccess 6 65737 - 65746 2018年10月
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Comparison of thermal response for RF exposure in human and rat models 査読あり
S. Kodera and A. Hirata
International Journal of Environmental Research and Public Health 15 ( 10 ) 2320 2018年10月
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複合物理解析に基づく熱中症リスク評価と応用 招待あり 査読あり 国際共著
平田晃正, 長谷川一馬, 小寺紗千子, Ilkka Laakso, 江川隆輔, 堀江祐圭, 矢﨑菜名子, 田口健治, 柏達也
電気学会論文誌 A 138 ( 6 ) 288 - 294 2018年06月
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Risk management of heatstroke based on fast computation of temperature and water loss using weather data for exposure to ambient heat and solar radiation 査読あり 国際共著
K. Kojima, A. Hirata, K. Hasegawa, S. Kodera, I. Laakso, D. Sasaki, T. Yamashita, R. Egawa, Y. Horie, N. Yazaki, S. Kowata, K. Taguchi, and T, Kashiwa
IEEE Acccess 6 3774 - 3785 2018年01月
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Temperature elevation in the human brain and skin with thermoregulation during exposure to RF energy 査読あり 国際共著
S. Kodera, J. Gomez-Tames, and A. Hirata
BioMedical Engineering OnLine 17 ( 1 ) 1 - 17 2018年01月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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太陽光および暑熱同時ばく露に対する熱中症リスク評価シミュレータの開発 査読あり
西尾渉, 小寺紗千子, 平田晃正, 佐々木大輔, 山下毅, 江川隆輔, 小林広明, 曽根秀昭
電子情報通信学会論文誌C J100-C ( 5 ) 208 - 216 2017年05月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
