• Journal of Astronomy and Space Sciences
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• v.21 no.4
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• pp.399-416
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• 2004

The FIMS (Far-ultraviolet IMaging Spectrograph), the main payload onboard the first Korean science satellite STSAT-1, has performed various observations since its launch on September 2003. It has been found that the attitude informations provided by spacecraft bus system have a time offset problem, and the problem has been extensively studied. After the time offset correction, boresight offsets between FIMS fields of view, of long and short wavelength bands, respectivley, and spacecraft attitude systems, which are mainly due to alignment error between the FIMS and spacecraft mechanical systems, were calculated through the observations of well known calibration targets. Monthly status and precision of the attitude information are also described. Correction methods for spatially variable exposure, intrinsic to FIMS data, are discussed. These results are essential to the FIMS data analysis, and will be used as references for subsequent studies on more accurate attitude corrections.

• Tunnel and Underground Space
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• v.2 no.1
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• pp.50-67
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• 1992

• The Korean Journal of Air & Space Law and Policy
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• v.6
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• pp.367-375
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• 1994

• Bulletin of the Korean Space Science Society
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• 2000.04a
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• pp.34-34
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• 2000

No Abstract, See Full Text

• Magazine of korean Tunnelling and Underground Space Association
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• v.9 no.1
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• pp.53-67
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• 2007

• Magazine of korean Tunnelling and Underground Space Association
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• v.25 no.3
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• pp.73-97
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• 2023

• Journal of the Korean housing association
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• v.17 no.3
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• pp.133-141
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• 2006

The purpose of this paper is to develop ubiquitous systems based upon individual space in an apartment dwelling, which are called space-based systems in a ubiquitous Apartment. This research investigates the present technology-based ubiquitous systems in apartment design and also include the recent design themes such as 'well-being space' and 'flexible space' to develop Space-Based systems. The proposed the Space-based Systems are concretely applied in a characteristic dwelling unit of stepped level apartment with specific activity scenarios to demonstrate their actual realization. This paper also focuses on 'responsive systems' with automated actuators and sensors as well as on 'flexible infill systems' to accommodate various space needs.

• Journal of applied mathematics & informatics
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• v.42 no.1
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• pp.169-178
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• 2024

The purpose of this paper is to introduce the concept of pairwise fuzzy semi door spaces and study its properties and applications. The conditions for a pairwise fuzzy semi door space to become a pairwise fuzzy semi Volterra space and for a pairwise fuzzy semi Volterra space together with a pairwise fuzzy semi door space to become a pairwise fuzzy semi Baire space are established. Also, the inter-relations between pairwise fuzzy semi Volterra spaces and other fuzzy bitopological spaces such as pairwise fuzzy semi Baire space, pairwise fuzzy semi σ-Baire space, pairwise fuzzy semi D-Baire space, pairwise fuzzy semi GID-space, pairwise fuzzy semi door space are also discussed in this paper.

• The Bulletin of The Korean Astronomical Society
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• v.34 no.2
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• pp.59.2-59.2
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• 2009

• International Journal of Aeronautical and Space Sciences
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• v.9 no.1
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• pp.59-65
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• 2008