• The Magazine of the IEIE
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• v.35 no.8
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• pp.71-83
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• 2008

• Proceedings of the Korean Nutrition Society Conference
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• 2003.05a
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• pp.189.2-189.2
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• 2003

• Proceedings of the Korean Nutrition Society Conference
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• 2003.05a
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• pp.298.2-298.2
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• 2003

• Proceedings of the Korean Nutrition Society Conference
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• 2003.05a
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• pp.298.1-298.1
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• 2003

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2005.04a
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• pp.73-76
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• 2005

• Proceedings of the Korean Society of Life Science Conference
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• 2003.10a
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• pp.134-134
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• 2003

• Quality Improvement in Health Care
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• v.14 no.2
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• pp.89-100
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• 2008

• Proceedings of the Zoological Society Korea Conference
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• 1996.04a
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• pp.42.1-42
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• 1996

No Abstract, See Full Text

• Journal of Fisheries and Marine Sciences Education
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• v.21 no.1
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• pp.52-58
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• 2009

With the increase of marine traffic capacity, marine accidents have also been increased for recent several years. Especially watch officer must maneuver not entering into the safety minimum approaching distances when two power-driven vessels are crossing. The author calculated the safety minimum approaching distances to provide a navigator with them based on zig-zag motion by experimental ship. The obtained results are summarized as follows : 1. The greatest distance is to be kept by the give way vessel to avoid collision when the crossing course angle is $90^{\circ}$. In this case the safety minimum approaching distance must be more than from 5 times to 11 times of her own length according to her size. 2. The watch officer of the give way vessel must always take an action to avoid collisions outside of the safety minimum approaching distance. 3. When the navigator used rudder to small angle than to large angle to avoid other vessel he must take action outside the sufficient safety minimum outside distances in advance. 4. Risk of collision in crossing situation is more greater in obtuse situation than in acute one.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.28 no.12
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• pp.982-992
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• 2017

In this paper, we introduce a method of selection for the optimal transmission polarization of a W-band seeker through the extraction of the one-dimensional scattering center of a ground tank target. We calculated the surface scattering and edge scattering using the shooting and bouncing ray tracing method of the CST A-solver. Based on 4-channel RCS data, using the one-dimensional RELAX algorithm, which is a kind of spectral estimation technique, scattering centers of ground targets were extracted. According to the changes in the polarization state and look angle, we compared and analyzed the scattering center results. Through simulation, we verified that the scattering center results can be applied when feature vectors are used for target recognition.