Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers
Herein, we present a new method for the calculation of the specific absorption rate (SAR) of rats (named time-weighted SAR) to practically consider the effect of the ever-changing movements of rats on their SARs. First, nine rats in separate cages were recorded for approximately 22 h, and the footag...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9955528/ |
| _version_ | 1828301826560098304 |
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| author | Sangbong Jeon Daeun Choi Seong Ju Kim Ae-Kyoung Lee Hyung-Do Choi Dongho Kim |
| author_facet | Sangbong Jeon Daeun Choi Seong Ju Kim Ae-Kyoung Lee Hyung-Do Choi Dongho Kim |
| author_sort | Sangbong Jeon |
| collection | DOAJ |
| description | Herein, we present a new method for the calculation of the specific absorption rate (SAR) of rats (named time-weighted SAR) to practically consider the effect of the ever-changing movements of rats on their SARs. First, nine rats in separate cages were recorded for approximately 22 h, and the footage every 1 min was collected to obtain 1,307 still shots per rat. Next, five representative postures, which were classified according to the similarity of the still shots, were selected. Subsequently, the percentage of each posture was calculated by computing the number of still shots classified into the corresponding representative postures. Lastly, we demonstrated that although each rat exhibited relatively different and diverse movements during the observation period, the application of this percentage to the SARs of each posture resulted in very similar SAR levels among the rats. This indicates that the time-weighted SAR can be a suitable parameter for accounting for various behavior patterns of rats, as it can measure the total amount of real RF exposure more precisely and practically. |
| first_indexed | 2024-04-13T13:28:19Z |
| format | Article |
| id | doaj.art-7f231d7d3b3b4d16825ac86750a76bc8 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-13T13:28:19Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-7f231d7d3b3b4d16825ac86750a76bc82022-12-22T02:45:03ZengIEEEIEEE Access2169-35362022-01-011012225412226010.1109/ACCESS.2022.32234339955528Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation ChambersSangbong Jeon0https://orcid.org/0000-0001-8059-9700Daeun Choi1https://orcid.org/0000-0002-8368-2216Seong Ju Kim2https://orcid.org/0000-0002-6117-8799Ae-Kyoung Lee3https://orcid.org/0000-0002-8082-4194Hyung-Do Choi4https://orcid.org/0000-0003-2652-7524Dongho Kim5https://orcid.org/0000-0002-7861-4286Radio Technology Research Department, Electronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaDepartment of Electrical Engineering, Sejong University, Seoul, South KoreaDepartment of Electrical Engineering, Sejong University, Seoul, South KoreaRadio Technology Research Department, Electronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaRadio Technology Research Department, Electronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaDepartment of Electrical Engineering, Sejong University, Seoul, South KoreaHerein, we present a new method for the calculation of the specific absorption rate (SAR) of rats (named time-weighted SAR) to practically consider the effect of the ever-changing movements of rats on their SARs. First, nine rats in separate cages were recorded for approximately 22 h, and the footage every 1 min was collected to obtain 1,307 still shots per rat. Next, five representative postures, which were classified according to the similarity of the still shots, were selected. Subsequently, the percentage of each posture was calculated by computing the number of still shots classified into the corresponding representative postures. Lastly, we demonstrated that although each rat exhibited relatively different and diverse movements during the observation period, the application of this percentage to the SARs of each posture resulted in very similar SAR levels among the rats. This indicates that the time-weighted SAR can be a suitable parameter for accounting for various behavior patterns of rats, as it can measure the total amount of real RF exposure more precisely and practically.https://ieeexplore.ieee.org/document/9955528/Time-weighted SARratswhole-body-average SAR (WBA-SAR)reverberation chamberRF exposure |
| spellingShingle | Sangbong Jeon Daeun Choi Seong Ju Kim Ae-Kyoung Lee Hyung-Do Choi Dongho Kim Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers IEEE Access Time-weighted SAR rats whole-body-average SAR (WBA-SAR) reverberation chamber RF exposure |
| title | Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers |
| title_full | Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers |
| title_fullStr | Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers |
| title_full_unstemmed | Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers |
| title_short | Time-Weighted SAR in Rats for the Estimation of Practical RF Exposure in Reverberation Chambers |
| title_sort | time weighted sar in rats for the estimation of practical rf exposure in reverberation chambers |
| topic | Time-weighted SAR rats whole-body-average SAR (WBA-SAR) reverberation chamber RF exposure |
| url | https://ieeexplore.ieee.org/document/9955528/ |
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