Zobrazeno 1 - 10 of 15 pro vyhledávání: '"Pureum Kim"'
1
Akademický článek
Analysis of Preliminary Impulsive Trajectory Design for Near-Earth Asteroid Missions under Approaching Phase Constraints
Autor: Pureum Kim, Sang-Young Park
Publikováno v: Aerospace, Vol 10, Iss 10, p 855 (2023)
This study investigates the preliminary trajectory design for high-thrust missions to near-Earth asteroids (NEAs), considering distance and phase angle constraints during the approaching phase to enable pre-rendezvous optical navigation and the scien
Externí odkaz: https://doaj.org/article/e5f37a07de3d4265b2f39e3c501caac0
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2
Akademický článek
A Preliminary Impulsive Trajectory Design for (99942) Apophis Rendezvous Mission
Autor: Pureum Kim, Sang-Young Park, Sungki Cho, Jung Hyun Jo
Publikováno v: Journal of Astronomy and Space Sciences, Vol 38, Iss 2, Pp 105-117 (2021)
In this study, a preliminary trajectory design is conducted for a conceptual spacecraft mission to a near-Earth asteroid (NEA) (99942) Apophis, which is expected to pass by Earth merely 32,000 km from the Earth’s surface in 2029. This close approa
Externí odkaz: https://doaj.org/article/c98e088efd7b402bbc4a755a582ddb66
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3
Akademický článek
Analysis of Inter-satellite Ranging Precision for Gravity Recovery
Autor: Pureum Kim, Sang-Young Park, Dae-Eun Kang, Youngro Lee
Publikováno v: Journal of Astronomy and Space Sciences, Vol 35, Iss 4, Pp 243-252 (2018)
In a satellite gravimetry mission similar to GRACE, the precision of inter-satellite ranging is one of the key factors affecting the quality of gravity field recovery. In this paper, the impact of ranging precision on the accuracy of recovered geopo
Externí odkaz: https://doaj.org/article/86df97fb268e4912a9db03eb9b0ddf7e
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4
Duality-Based Near-Fuel-Optimal Impulsive Trajectory Computation for Spacecraft Rendezvous Under Perturbations
Autor: Youngkwang Kim, Sang-Young Park, Pureum Kim
Publikováno v: Journal of Guidance, Control, and Dynamics. 46:871-884
In this study, a novel impulsive trajectory optimization algorithm for near-fuel-optimal rendezvous under perturbations is presented. The algorithm, called algorithm for impulsive rendezvous trajectory optimization under perturbations (AIRTOP), is de
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff3e69a692819887677165de75612108
https://doi.org/10.2514/1.g006601
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5
Religion and disclosure of non-GAAP earnings
Autor: Wei Jiang, Pureum Kim, Myungsoo Son
Publikováno v: Managerial Auditing Journal. 38:58-84
Purpose The purpose of this study is to examine whether non-generally accepted accounting principles (GAAP) earnings disclosed by firms headquartered in high religious areas (religious firms) are more informative. The non-GAAP disclosure is voluntary
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68dc01f58e946ba42f7f45b3ee0ae593
https://doi.org/10.1108/maj-04-2022-3524
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8
Spacecraft formation flying system design and controls for four nanosats mission
Autor: Pureum Kim, Sang Young Park, Youngbum Song, Sang Won Lee, Jaejin Lee, Eunji Lee
Publikováno v: Acta Astronautica. 186:148-163
Small-scale magNetosphere and Ionosphere Plasma Experiment (SNIPE) mission is aimed to observe a small-scale structure of the physical phenomena in a near-Earth environment. SNIPE mission comprises four 6U size nanosats that perform formation flying
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::143a20d0f50a219d357a3ac0c833ab59
https://doi.org/10.1016/j.actaastro.2021.05.013
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9
A Preliminary Impulsive Trajectory Design for (99942) Apophis Rendezvous Mission
Autor: Sungki Cho, Pureum Kim, Jung Hyun Jo, Sang Young Park
Publikováno v: Journal of Astronomy and Space Sciences, Vol 38, Iss 2, Pp 105-117 (2021)
In this study, a preliminary trajectory design is conducted for a conceptual spacecraft mission to a near-Earth asteroid (NEA) (99942) Apophis, which is expected to pass by Earth merely 32,000 km from the Earth’s surface in 2029. This close approac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d2df12f732145f7c33c70c40f732600
http://koreascience.or.kr/article/JAKO202118248937696.page
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