• Economic and Environmental Geology
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• v.39 no.3 s.178
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• pp.343-351
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• 2006

• Journal of Chest Surgery
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• v.3 no.1
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• pp.13-16
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• 1970

A case of bronchogenic cyst of the posterior mediastinum in a boy of 5 years of age was encountered at Seoul University Hospital. Scarcity of case reports in Korea and Japan suggests that bronchogenic cyst is a relatively rare entity in the Far East.

• Proceedings of the Zoological Society Korea Conference
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• 1998.10b
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• pp.144.2-144
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• 1998

No Abstract, See Full Text

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.354-356
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• 2007

IALA의 e-Navigation Committee에서 논의 되고 있는 국제적인 동향 및 움직임에 대하여 기술한다. 특히 e-Navigation에 대한 개념, 비전 등을 알아보고 향후 전망에 대하여 논의한다.

• Economic and Environmental Geology
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• v.40 no.2 s.183
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• pp.237-250
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• 2007

• Rapid Communication in Photoscience
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• v.2 no.1
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• pp.28-30
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• 2013

The extract of Punica granatum peel was separated and confirmed by HPLC, and punicalagin, one of the extract, was better antibacterial activity against Salmonella.

• Bulletin of the Korean Chemical Society
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• v.35 no.2
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• pp.663-665
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• 2014

• Bulletin of the Korean Chemical Society
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• v.32 no.10
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• pp.3773-3774
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• 2011

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.508-512
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• 2003

In 2000, the economy of Asia made a V-character type recovery from the currency and financial crisis in 1997. The increase in exports is assumed to be one of the causes. To negotiate with foreign countries, English must be indispensable in many cases. In this study, we investigated how English education is performed in East Asian countries while focusing on English textbooks. We metrically analyzed some textbooks used junior high schools and high school in Japan and Korea, and elementary schools in China and Singapore to compare them with U.S.A and U.K textbook. We investigated some characteristics of character-and word-appearance of English textbook using an exponential function. Moreover we derived the degree of difficulty far each material through the variety of words and their frequency on the basis of the required English vocabulary in Japanese junior high schools. As a result we could show at which level of U.S.A. or U.K the English textbooks used in East Asian countries are.

• 한국신재생에너지학회:학술대회논문집
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• 2007.06a
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• pp.630-634
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• 2007

In the past, the use of wave energy has mainly been focused on conversion of large wave energy resources in the far offshore areas. However, with the technological improvement of converting wave energy into electricity, the energy resources at much shallow waters are now considered as a site for possible installation of the devices that obtain energy from the waves. In this respect, the wave energy resources on the east coast of Korea, where the sea is milder than the open ocean, were investigated using the field measurement data obtained at three different locations along the coast. For all the locations, the wave power was greater in winter season, compared to summer season. The estimated wave power varied from 2 to 4.5 kW/m on average, depending on the measurement locations.