• Proceedings of the IEEK Conference
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• 1998.10a
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• pp.963-966
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• 1998

In this paper, a fingerprint classification algorithm is presented. Fingerprint types are classified into five categories: arch, tented arch, left loop, right loop and whorl. Singular points (cores and deltas) are detected using Poincare index on the directional image smoothed by adaptive window size. The method is shown to be robust to the variation of fingerprint image qualaity.

• The Bulletin of The Korean Astronomical Society
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• v.32 no.2
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• pp.37.1-37.1
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• 2007

• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.31.2-31.2
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• 2007

• Journal of the Korean institute of surface engineering
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• v.33 no.2
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• pp.107-114
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• 2000

In this study, we investigated the possibility of the application of the EzROBO system to direct shaping techniques which can make arbitrary shapes without any specific mold. We formed arbitrary shapes using raw materials of EH-260D (Epoxy＋Binder) with the conditions of $250\mu\textrm{m}$ layer thickness, 0.2MPa working pressure, 20mm/sec working velocity, and 1.8mm needle thickness. The developed Spatial Printing Technique showed enhanced working velocity and lower cost than existing 3DP process, and is expected to replace the existing process through the process optimization in the future.

• The Bulletin of The Korean Astronomical Society
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• v.33 no.1
• /
• pp.38.1-38.1
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• 2008

• The Bulletin of The Korean Astronomical Society
• /
• v.33 no.1
• /
• pp.39.2-39.2
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• 2008

• The Bulletin of The Korean Astronomical Society
• /
• v.33 no.1
• /
• pp.42.2-42.2
• /
• 2008

• The Bulletin of The Korean Astronomical Society
• /
• v.33 no.1
• /
• pp.65.1-65.1
• /
• 2008

• The Bulletin of The Korean Astronomical Society
• /
• v.33 no.1
• /
• pp.65.2-65.2
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• 2008

• Proceedings of the Korean Society of Crop Science Conference
• /
• 1988.07a
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• pp.34-35
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• 1988