Zobrazeno 1 - 10
of 275
pro vyhledávání: '"Young-Sook Lee"'
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 40, Iss 3, Pp 101-111 (2023)
We conducted a statistical study of polar mesospheric summer echoes (PMSEs) in relation to magnetic local time (MLT), considering the geomagnetic conditions using the K-index (or K). Additionally, we performed a case study to examine the velocity p
Externí odkaz:
https://doaj.org/article/15be50b3f35548bbbce7e4add1aeac50
Autor:
Sunkara Eswaraiah, Kyong-Hwan Seo, Kondapalli Niranjan Kumar, Madineni Venkat Ratnam, Andrey V. Koval, Jin-Yun Jeong, Chalachew Kindie Mengist, Young-Sook Lee, Katelynn Greer, Jun-Young Hwang, Wonseok Lee, Maniyattu Pramitha, Gasthi Venkata Chalapathi, Mannem Venkatarami Reddy, Yong Ha Kim
Publikováno v:
Atmosphere, Vol 13, Iss 9, p 1475 (2022)
Processes behind Sudden Stratospheric Warming (SSW), which occurs more frequently in the northern hemispheric polar latitudes and its influence from the stratosphere to the upper atmosphere are well documented. However, physical processes associated
Externí odkaz:
https://doaj.org/article/5ac4075fd19f4d23a94332fd5dc87737
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 36, Iss 3, Pp 121-131 (2019)
The ionospheric mid-latitude trough (IMT) is the electron density depletion phenomenon in the F region during nighttime. It has been suggested that the IMT is the result of complex plasma processes coupled to the magnetosphere. In order to statistica
Externí odkaz:
https://doaj.org/article/5623337808ef458495b95849efe1b740
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 35, Iss 2, Pp 93-103 (2018)
Non-specular, vertically upward transit, fast-moving radar echoes are observed in the summer polar upper mesosphere near 90 km using 52 MHz VHF radar at Esrange, Sweden. By resolving maximum echo power movement, the unusual meteor trails propagate
Externí odkaz:
https://doaj.org/article/aeb57f09cea84b1fbaa30567315d1f97
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 35, Iss 2, Pp 83-92 (2018)
The summer polar lower thermosphere (90-100 km) has an interesting connection to meteors, adjacent to the mesopause region attaining the lowest temperature in summer. Meteors supply condensation nuclei for charged ice particles causing polar mesosphe
Externí odkaz:
https://doaj.org/article/028a3ddada9f49898bff94b1e9bc1bfd
Publikováno v:
Cogent Social Sciences, Vol 4, Iss 1 (2018)
This study explores into Japanese cultural meaning of nature. The paper studies Japanese domestic tourists to a mountain trail near Tokyo. East Asian concept of nature distinctively identifies itself as a unity between nature and humanity. To gain a
Externí odkaz:
https://doaj.org/article/44aeb10cc2fe4ac89327f3f6393580cb
Autor:
Young-Sook Lee, Wan-Young Chung
Publikováno v:
Sensors, Vol 12, Iss 1, Pp 573-584 (2012)
Vision-based abnormal event detection for home healthcare systems can be greatly improved using visual sensor-based techniques able to detect, track and recognize objects in the scene. However, in moving object detection and tracking processes, movin
Externí odkaz:
https://doaj.org/article/c642420ff9c2475d85e8b594b57c1835
This work presents, the classification of user activities such as Rest, Walk and Run, on the basis of frequency component present in the acceleration data in a wireless sensor network environment. As the frequencies of the above mentioned activities
Externí odkaz:
http://arxiv.org/abs/1107.4414
This study presents ultra-low frequency (ULF) Pc5 discrete spectrum simultaneously observed in the magnetosphere and high- to low-latitude ionospheres near noon hours (~10-14 MLT) during the recovery phase of geomagnetic storm on November 4, 2021. Du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a15b00031f2e2e792504668d708ff7f6
https://doi.org/10.22541/essoar.168167343.38787272/v1
https://doi.org/10.22541/essoar.168167343.38787272/v1
Publikováno v:
BMC Medical Education. 23
Background The assessment of pharmacy students’ readiness to begin the education of an advanced pharmacy practice experience (APPE) in clinical pharmacy settings continues to gain increasing attention. This study aimed to develop an objective struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9207a995b2ef4e0739256fac90d761c4
https://doi.org/10.1186/s12909-023-04226-z
https://doi.org/10.1186/s12909-023-04226-z