• Bulletin of the Korean Space Science Society
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• 1999.09a
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• pp.21-21
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• 1999

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 1997.10b
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• pp.242.2-242
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• 1997

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 1998.10b
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• pp.254.2-254
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• 1998

No Abstract, See Full Text

• Bulletin of the Korean Space Science Society
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• 1997.04a
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• pp.20.2-20
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• 1997

No Abstract.See Full-text

• Proceedings of the Zoological Society Korea Conference
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• 2000.10a
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• pp.253.2-254
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• 2000

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.180.3-180
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• 2003

No Abstract, See Full Text

• Proceedings of the KIEE Conference
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• 2005.05a
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• pp.144-147
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• 2005

This paper is proposed an 8$\times$8 bit parallel multiplier for low power consumption. The 8$\times$8 bit parallel multiplier is used for the comparison between the proposed Low-Swing CVSL full adder with conventional CVSL full adder. Comparing tile previous works, this circuit is reduced the power consumption rate of 8.2% and the power-delay-product of 11.1%. The validity and effectiveness of the proposed circuits are verified through the HSPICE under Hynix 0.35$\{\mu}m$ standard CMOS process.

• The Transactions of the Korean Institute of Power Electronics
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• v.18 no.5
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• pp.501-506
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• 2013

A hold-up time compensation circuit is proposed to get high efficiency of the front-end phase-shifted full bridge DC/DC converter. The proposed circuit can make the phase-shifted full bridge front-end DC/DC converter built with 0.5 duty ratio so that the conduction loss of the primary side and voltage stress across rectifier in the secondary side are reduced and the higher efficiency can be obtained. Furthermore, the requirement of an output filter significantly can diminish due to the perfect filtered waveform. A 12V/100A prototype has been made and experimental results are given to verify the theoretic analysis and detailed features.

• Journal of Yeungnam Medical Science
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• v.22 no.2
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• pp.183-190
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• 2005

Background: This study was performed to evaluate the incidence and clinical characteristics of symptomatic pneumothorax in the full-term neonate. Materials and Methods: We retrospectively reviewed the medical records of 32 symptomatic pneumothorax patients in the full term neonates who admitted to the neonatal intensive care unit in Ulsan Dong Kang General Hospital from January, 2000 to December, 2004. The subjects were divided into two groups according to underlying causes; spontaneous pneumothorax group and secondary pneumothorax group, then each clinical characteristics were assessed. Results: Spontaneous pneumothorax patients were 10(31%) and secondary pneumothorax patients were 22(69%). Overall incidence of spontaneous pneumothorax was 0.4%. Most common cause of secondary pneumothorax was pneumonia. Twelve cases(54.5%) among secondary pneumothorax patients were associated with mechanical ventilator care. Clinical characteristics, courses and managements were similar between two groups, but more shorter duration of admission and chest-tube insertion in spontaneous pneumothorax group Conclusion: The patient with symptomatic pneumothorax needs careful observation and proper management with or without underlying respiratory diseases.

• Proceedings of the Korean Society of Sericultural Science Conference
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• 2002.04a
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• pp.51-51
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• 2002

No Abstract, See Full Text