Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Ae-Kyoung Lee"'
Autor:
Noriko Kojimahara, Yong-Han Lee, Ae-Kyoung Lee, Sanghyuk Bae, Ho-Jang Kwon, Mina Ha, Yasuto Sato, Masao Taki, Joe Wiart, C.E. Langer, Elisabeth Cardis
Publikováno v:
Journal of Epidemiology, Vol 34, Iss 4, Pp 180-186 (2024)
Background: This study aimed to examine the association between risk of brain tumors and radiofrequency (RF) exposure from mobile phones among young people in Korea and Japan. Methods: This case-control study of brain tumors in young people was condu
Externí odkaz:
https://doaj.org/article/3e8a5e6562994556a369c75ec70295ee
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 5, Pp 544-549 (2022)
This research proposes a numerical model for a tablet in the wireless local area network band for specific absorption rate (SAR) study. The design criteria, such as the tablet size, operating frequencies, antenna position, and target 1-g peak spatial
Externí odkaz:
https://doaj.org/article/5850d2b2c9524848bd5d2dbd68853255
Publikováno v:
IEEE Access, Vol 10, Pp 122254-122260 (2022)
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 we
Externí odkaz:
https://doaj.org/article/7f231d7d3b3b4d16825ac86750a76bc8
Autor:
RYOTA ITO, SANGBONG JEON, JIANQING WANG, AE-KYOUNG LEE, JEONG-KI PACK, HYUNG-DO CHOI, Young Hwan AHN, Katsumi IMAIDA
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 3, Pp 522-532 (2022)
The US National Toxicology Program (NTP) conducted a long-term carcinogenic and toxicity study with small animals on the effects of mobile phone radiation at 900 MHz and 1900 MHz, respectively, and showed an increase in incidence of malignant schwann
Externí odkaz:
https://doaj.org/article/2f7740c758944290a573e3086616970b
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 1, Pp 41-47 (2022)
This paper presents the representative numerical modeling of smartphones with wideband code division multiple access (WCDMA), long-term evaluation (LTE), and wireless local area network (WLAN) bands for epidemiological studies. For this purpose, base
Externí odkaz:
https://doaj.org/article/be9eb7880f344cef9118168ce8e666fc
Autor:
Sangbong Jeon, Wook Jang, Ae-Kyoung Lee, Hyung-Do Choi, Jeong-Ki Pack, Jianqing Wang, Dongho Kim
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 21, Iss 2, Pp 148-152 (2021)
We investigate the whole-body average specific absorption rate (WBA-SAR) of rats under various plane wave exposure characteristics, including different polarizations, incidence angles, distances between rats, and total number of rats. Unlike many oth
Externí odkaz:
https://doaj.org/article/19cb0a10638142b889466fa5d2a04918
Publikováno v:
IEEE Access, Vol 9, Pp 19716-19722 (2021)
This paper reports the electromagnetic field (EMF) exposure levels from fifth generation (5G) services. Three mobile operators in South Korea launched the world's first 5G New Radio networks using the 3.5 GHz band in April 2019. The transmitted power
Externí odkaz:
https://doaj.org/article/038e4b73d5614ce5aace1718a90b0053
Publikováno v:
IEEE Access, Vol 9, Pp 88167-88176 (2021)
The number of fifth generation (5G) base stations (BSs) installed for commercial services continues to increase in South Korea since the first 5G rollout of the 3.5 GHz band in 2019. However, this will cause a rapid increase in the cost and effort re
Externí odkaz:
https://doaj.org/article/45d169dd019d47f5b8e30116cfc18b54
Autor:
Sangbong Jeon, Ae-Kyoung Lee, Jianqing Wang, Jeong-Ki Pack, Yong-Bum Kim, Young Hwan Ahn, Katsumi Imaida, Hyung-Do Choi
Publikováno v:
IEEE Access, Vol 9, Pp 146471-146477 (2021)
An exposure system was designed and implemented for the purpose of joint large-scale animal experiments conducted in Korea and Japan using a reverberation chamber (RC) in both countries. Prior to the start of the animal experiments, the parameters S2
Externí odkaz:
https://doaj.org/article/a191b54ca2474220a55de4b20acbd4d4
Autor:
Young Seung Lee, Philip Ayiku Dzagbletey, Jae‐Young Chung, Sang Bong Jeon, Ae‐Kyoung Lee, Nam Kim, Seong Jong Song, Hyung‐Do Choi
Publikováno v:
ETRI Journal, Vol 42, Iss 6, Pp 837-845 (2020)
AbstractThe objective of this study was to implement an in vitro exposure system for 28 GHz to investigate the biological effects of fifth‐generation (5G) communication. A signal source of 28 GHz for 5G millimeter‐wave (MMW) deployment was develo
Externí odkaz:
https://doaj.org/article/aad9cbf72e3845559a4cd609b59db54a