• Proceedings of the Korean Society of Plant Pathology Conference
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• 1999.10a
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• pp.83.1-83
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• 1999

• Proceedings of the Korean Society of Life Science Conference
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• 2003.05a
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• pp.78-78
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• 2003

• Proceedings of the KIEE Conference
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• 2001.04a
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• pp.288-292
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• 2001

In this paper, a maximum power control of a low-cost and rugged cage-type induction generator system is proposed, where the machine-side PWM converter is used for maximum power generation and field excitation control, and the line-side PWM inverter is used for the dc link voltage control and source-side power factor control. Simulation results through Matlab Simulink have been demonstrated.

• Proceedings of the KIEE Conference
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• 2003.04a
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• pp.327-330
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• 2003

The frequency and Phase angle of the utility voltage are important in many industrial systems. In this paper, the analysis and generalized approach of single-phase PLL control have been presented. The experimental results have been presented and demonstrated the feasibility of proposed methods.

• Bulletin of the Korean Chemical Society
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• v.29 no.4
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• pp.887-890
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• 2008

• Proceedings of the Botanical Society of Korea Conference
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• 2002.04a
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• pp.21-37
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• 2002

• Proceedings of the Korean Biophysical Society Conference
• /
• 1996.07a
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• pp.41-41
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• 1996

Chilling-sensitive plants are damaged severly by chilling in the light. The activity of photosystem I(PSI) is known to be inhibited by low light-chilling and its iron-sulfur centers are presumed to be its primary target. In this report, the effect of chilling at 4$^{\circ}C$ in the light was investigated in the level of pigment-protein complexes in cucumber leaves compared with pea leaves. (omitted)

• Proceedings of the KIPE Conference
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• 2005.07a
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• pp.572-574
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• 2005

In this paper, a compensation scheme for the effect of dc-link ripple voltages on output voltage of two-leg and three-phase PWM inverters is proposed, without which compensation scheme the three-phase output voltage and current are much distorted. The proposed scheme has been verified by experimental results.

• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.163-166
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• 2002

Recently, two kinds of the digital satellite receiver for radio and television have been developed as the global receiving system. The frequency bands of the satellite radio system are ranging from 1, 400MHz to 2, 600MHz, while the satellite television system are ranging from 11, 000MHz to 13, 000MHz New anti-discern antennas have been developed so that satisfies the Omni-characteristics in the horizontal directivity and approximately 45$^{\circ}$'elevation angle in the vertical directivity. These results were similar to the discern antenna except the anti-vertical directivity.

• Proceedings of the Korean Society of Life Science Conference
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• 2001.09a
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• pp.47-47
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• 2001