Zobrazeno 1 - 10
of 42
pro vyhledávání: '"JongDae Sohn"'
Autor:
Young-Sil Kwak, Jeong-Heon Kim, Sujin Kim, Yukinaga Miyashita, Taeyong Yang, Sung-Hong Park, Eun-Kyung Lim, Jongil Jung, Hosik Kam, Jaewook Lee, Hwanhee Lee, Ji-Hyun Yoo, Haein Lee, Ryun-Young Kwon, Jungjoon Seough, Uk-Won Nam, Woo Kyoung Lee, Junseok Hong, Jongdae Sohn, Jaeyoung Kwak, Hannah Kwak, Rok-Soon Kim, Yeon-Han Kim, Kyung-Suk Cho, Jaeheung Park, Jaejin Lee, Hoang Ngoc Huy Nguyen, Madeeha Talha
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 41, Iss 3, Pp 171-194 (2024)
This study reports comprehensive observations for the G5-level geomagnetic storm that occurred from May 10 to 12, 2024, the most intense event since the 2003 Halloween storm. The storm was triggered by a series of coronal mass ejections (CMEs) orig
Externí odkaz:
https://doaj.org/article/3348d31c3d7d4488b9edf511150a5f37
Autor:
Nguyen Duy Quang, HongJoo Kim, Phan Quoc Vuong, Nguyen Duc Ton, Uk-Won Nam, Won-Kee Park, JongDae Sohn, Young-Jun Choi, SungHwan Kim, SukWon Youn, Sung-Joon Ye
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 3, Pp 1021-1030 (2023)
We propose an overall procedure for measuring and unfolding fast neutron spectra using a trans-stilbene scintillation detector. Detector characterization was described, including the information on energy calibration, detector resolution, and nonprop
Externí odkaz:
https://doaj.org/article/45bdd8240ec7427dbd3d91a88406e3c6
Autor:
Ji-Hyeon Yoo, Dae-Young Lee, Eojin Kim, Hoonkyu Seo, Kwangsun Ryu, Kyung-Chan Kim, Kyoungwook Min, Jongdae Sohn, Junchan Lee, Jongho Seon, Kyung-In Kang, Seunguk Lee, Jaeheung Park, Goo-Hwan Shin, SungOg Park
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 38, Iss 1, Pp 31-38 (2021)
In this paper, we present observations of the Space Radiation Detectors (SRDs) onboard the Next Generation Small Satellite-1 (NEXTSat-1) satellite. The SRDs, which are a part of the Instruments for the study of Stable/Storm-time Space (ISSS), consis
Externí odkaz:
https://doaj.org/article/e345fe0ca674435b9a029b9ecb3d2515
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 37, Iss 4, Pp 249-255 (2020)
We develop the tissue-equivalent proportional counter (TEPC) type’s space radiation dosimeter to measure in-situ aviation radiation. That was originally developed as a payload of small satellite in the low-earth orbit. This dosimeter is based on a
Externí odkaz:
https://doaj.org/article/84597b9284c14754b95f3c81c5e35040
Autor:
Eojin Kim, Ji-Hyeon Yoo, Hee-Eun Kim, Hoonkyu Seo, Kwangsun Ryu, Jongdae Sohn, Junchan Lee, Jongho Seon, Ensang Lee, Dae-Young Lee, Kyoungwook Min, Kyung-In Kang, Sang-Yun Lee, Juneseok Kang
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 37, Iss 3, Pp 209-218 (2020)
This paper describes the initial operations and preliminary results of the Instrument for the study of Stable/Storm-time Space (ISSS) onboard the microsatellite Next Generation Small Satellite-1 (NEXTSat-1), which was launched on December 4, 2018 i
Externí odkaz:
https://doaj.org/article/654ec7e6385e4f4fbda65b58f58257f3
Autor:
Jongdae Sohn, Jaejin Lee, Gyeongbok Jo, Jongkil Lee, Jaeheung Park, Young-Sil Kwak, Won-Kee Park, Uk-Won Nam, Kyunghwan Dokgo
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 35, Iss 3, Pp 195-200 (2018)
The present paper describes the design of a Solid State Telescope (SST) on board the Korea Astronomy and Space Science Institute satellite-1 (KASISat-1) consisting of four [TBD] nanosatellites. The SST will measure these radiation belt electrons from
Externí odkaz:
https://doaj.org/article/f44ab2ab710943e2b90ef06ace3a81b6
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 35, Iss 1, Pp 47-54 (2018)
Moon mineralogy mapper (M^3)`s work proved that the moon is not completely dry but has some hydroxyl/water. M^3’s data confirmed that the amount of hydroxyl on the lunar surface is inversely related to the measured signal brightness, suggesting the
Externí odkaz:
https://doaj.org/article/a642732c8d0e4a01ba2a8e3e31d77303
Autor:
Bobae Kim, Uk-Won Nam, Sunghwan Kim, Sukwon Youn, Won-Kee Park, Jongdae Sohn, Hong Joo Kim, Seh-Wook Lee, Junga Hwang, Sung-Joon Ye, Insoo Jun, Young-Jun Choi
Publikováno v:
Sensors, Vol 21, Iss 23, p 8029 (2021)
A lunar vehicle radiation dosimeter (LVRAD) has been proposed for studying the radiation environment on the lunar surface and evaluating its impact on human health. The LVRAD payload comprises four systems: a particle dosimeter and spectrometer (PDS)
Externí odkaz:
https://doaj.org/article/ef91e2fc11254e91afb6741558f96c32
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 34, Iss 2, Pp 105-110 (2017)
Solar wind density depletions are phenomena that solar wind density is rapidly decreased and keep the state. They are generally believed to be caused by the interplanetary (IP) shocks. However, there are other cases that are hardly associated with
Externí odkaz:
https://doaj.org/article/8de95de3173d4f97ba5af5345dd21baa
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 34, Iss 2, Pp 99-103 (2017)
The sun is not equally bright over the whole sphere, but rather is darkened toward the limb. This effect is well-known as limb darkening. The limb darkening coefficient is defined by the ratio of the center intensity to limb intensity. In this study
Externí odkaz:
https://doaj.org/article/e2eaca105f9d4f03927f8af6bfba9e5b