• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.721-722
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• 2008

• 한국초전도학회:학술대회논문집
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• 2009.07a
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• pp.31-31
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• 2009

• Proceedings of the Korean Magnestics Society Conference
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• 1995.05a
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• pp.94-95
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• 1995

• Proceedings of the Korean Magnestics Society Conference
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• 2017.05a
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• pp.46-47
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• 2017

• Proceedings of the Materials Research Society of Korea Conference
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• 1998.08a
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• pp.110.2-110
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• 1998

• Proceedings of the Korean Magnestics Society Conference
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• 2002.04a
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• pp.108-109
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• 2002

No Abstract, See Full Text

• Ocean and Polar Research
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• v.35 no.1
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• pp.15-26
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• 2013

The toxic, Harmful Algal Blooms (HABs) caused by the Cochlodinium polykrikoides have a serious impact on the coastal waters of Korea. In this study, the acoustic detection system was developed for rapid HABs detection, based on the acoustic backscattering properties of the C. polykrikoides. The developed system was mainly composed of a pulser-receiver board, a signal processor board, a control board, a network board, a power board, ultrasonic sensors (3.5 and 5.0 MHz), an environmental sensor, GPS, and a land-based control unit. To evaluate the performance of the system, a trail was done at a laboratory, and two in situ trials were conducted: (1) when there was no red tide, and (2) when there was red tide. In the laboratory evaluation, the system performed well in accordance with the number of C. polykrikoides in the received level. Second, under the condition when there was no red tide in the field, there was a good correlation between the acoustic data and sampling data. Finally, under the condition when there was red tide in the field, the system successfully worked at various densities in accordance with the number of C. polykrikoides, and the results corresponded with the sampling data and monitoring result of NFRDI (National Fisheries Research & Development Institute). From the laboratory and field evaluations, the developed acoustic detection system for early detecting HABs has demonstrated that it could be a significant system to monitor the occurrence of HABs in coastal regions.

• Bulletin of the Korean Mathematical Society
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• v.48 no.2
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• pp.427-444
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• 2011

In this paper we give some non-existence theorems for Hopf hypersurfaces in the complex two-plane Grassmannian $G_2(\mathbb{C}^{m+2})$ with Lie parallel normal Jacobi operator $\bar{R}_N$ and totally geodesic D and $D^{\bot}$ components of the Reeb flow.

• The Bulletin of The Korean Astronomical Society
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• v.32 no.1
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• pp.35.1-35.1
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• 2007

• Journal of Biosystems Engineering
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• v.18 no.4
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• pp.390-401
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• 1993

This study was conducted to analyze the optimum capacity of Rice Processing Complex (RPC) and to select the optimum location of RPC based on the analysis of rice production and its commercializing rate for each county of major area of paddy field nationally. The study results showed that 500 of RPC having a drying capacity of 3,000 tons of rice would be needed nationally based on the selection analysis.