• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2004.05a
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• pp.150-150
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• 2004

• Proceedings of the Korean Society of Sericultural Science Conference
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• 2004.10a
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• pp.60-60
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• 2004

• Proceedings of the Korean Society of Sericultural Science Conference
• /
• 2004.10a
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• pp.72-72
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• 2004

• Proceedings of the Korean Society of Life Science Conference
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• 2000.09a
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• pp.56-56
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• 2000

• Proceedings of the Korean Society of Sericultural Science Conference
• /
• 2004.04a
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• pp.52-52
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• 2004

• Proceedings of the Korean Society of Sericultural Science Conference
• /
• 2004.04a
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• pp.53-53
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• 2004

• Proceedings of the Korean Society of Sericultural Science Conference
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• 2004.04a
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• pp.54-54
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• 2004

• 한국생물공학회:학술대회논문집
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• 2000.11a
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• pp.384-387
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• 2000

Heteropolysaccharide-7 (PS-7) was produced by Beijerinckia indica HS-2001 under aerobic condition. Production of PS-7 was investigated under various ratios of glucose as carbon source to ammonium nitrate as nitrogen source. Maximal production of PS-7 was 7.13 g/l when concentrations of glucose and ammonium nitrate were 10 g/l and 0.3 g/l, respectively. But its conversion rate from glucose was as low as 7 %. The highest conversion rate of PS-7 was 46% when those of glucose and ammonium nitrate were 1.0 g/l and 0.3 g/l, respectively.

• Journal of Environmental Science International
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• v.29 no.11
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• pp.1033-1054
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• 2020

Repeated use of land is depleting future resources and causing many ecological problems, prompting the need for a natural resource policy focusing on effective conservation. This study aims to identify methods based on international cases useful for introducing sustainable conservation of domestic natural resources. Currently, South Korea has developed and enforced many management and evaluation strategies for natural resources. However, due to limitations on policies and management, they show signs of strain. Therefore, this study compares and analyzes international conservation policies for nature and scenery, such as Germany's impact mitigation regulation, the USA's HEA (habitat equivalency analysis) and REA (resource equivalency analysis) policies, and Japan's three laws for landscape and greenery, to achieve the following three goals: first, find natural resources suitable for South Korea and define them. Second, plan goals for mitigation of total natural resources and build a basis for them. Third, establish effective complete plans for evaluating the total amount of natural resources.

• Fisheries and Aquatic Sciences
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• v.26 no.12
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• pp.708-714
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• 2023

This study reports a new record of freshwater fish Macrognathus aral (Bloch & Schneider) from Aiechu-Kalikhola tributary of the Maukhola river in Sarpang, Bhutan. The species was found in shoal of the tributary and was identified using its morphometric characters. It can be identified and distinguished from its congeners reported in Bhutan by dorsal fin rays XIX, 47, anal fin rays III, 52, rostral plates 28, pectoral fin rays 19, caudal fin rays 15, soft rayed part of dorsal and anal fin separated by a notch from rounded caudal fin, and presence of four ocelli at the base of dorsal fins. Further studies are needed to better understand its distribution, ecology, and population dynamics in the country. A key to species belonging to Mastacembelidae of Bhutan including the new record is provided.