• Cement
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• s.136
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• pp.13-19
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• 1994

• 산림경영
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• s.113
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• pp.22-23
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• 1995

• Journal of The Korean Society of Grassland and Forage Science
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• v.29 no.2
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• pp.103-110
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• 2009

Rape plants, especially forage type, are known as one of high S-demanding plants. Their productivity and quality have often limited under S-deficient condition. To investigate the effect of S-deficiency on N uptake and its assimilation, $NO_3^-$ absorption, nitrate reducatse (NR) and glutamine synthetase (GS) activity in leaf and root tissues as affected by different S-supplied level was determined. $NO_3^-$ uptake was not significant between control and S-deficient treated plants, while significantly depressed in S-deprived plants for the early 8 h. NR activity decreased as S-availability decreased, especially in young and middle leaves, representing more than 35% of decrease in S-deficient and 70% in S-deprived plants when compared with control. In roots, a significant decrease (-29%) in NR was observed only in S-deprived plants. Relatively higher GS activity was found in young leaves for three all treatments. As a whole leaf tissue, S-limited conditions resulted in a reduction of GS activity. In root which showed the lowest activity, a significant decrease (-30%) was observed only in S-deprived plants.

• Journal of Bio-Environment Control
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• v.17 no.4
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• pp.319-324
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• 2008

The sweet pepper (paprika) is one of the most important exported vegetable crops in Korea. This study evaluated the storability of sweet pepper fruits between 2 cultivars with different maturities under different storage conditions. The sweet peppers ('Special' and 'Fiesta') were grown in a rockwool hydroponic system, and harvested two different maturities: half-maturity and full-maturity levels. The sweet pepper fruits were stored in MA(non-ventilated) and non-MA(ventilated) conditions at 4 and $9^{\circ}C$ for 20 days. The storability of sweet pepper fruit was the highest in $4^{\circ}C$ MA conditions that remained 5% carbon dioxide and 10% oxygen during the storage. The ethylene concentration in MA condition showed $2{\sim}8{\mu}l/l$ regardless of storage temperatures, cultivars and maturities. The fruits packaged with non-ventilated film, showed lower weight loss, and higher firmness, and there was no different about decay ratio compared to the fruits packed ventilated film. The coloration of semi-matured fruit that colored 50% before storage progressed faster in non-ventilated packaging condition at $9^{\circ}C$, but their color did not changed as same as level of full-matured fruit. The electrolyte leakages and respiratory rate that estimated degree of chilling injury was highest in non-MA(ventilated) conditions of 'Special' full matured fruit placed at room temperature for 3 days following storage at $4^{\circ}C$ for 20 days. It may be suggested that sweet pepper fruit packed sealed (non-ventilated) film and stored at non-chilling temperature can be maintained better quality for long term storage.

• Proceedings of the Korea Contents Association Conference
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• 2003.11a
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• pp.503-504
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• 2003

새가 날고 싶은 곳으로 나는 것처럼 사회적 제도나 규범, 예술적 범례(paradigm)를 넘어 예술사회에서 인정받지 못한다고 하더라도 나 자신이 자아도취라도 된 작품을 하고 싶다. 물론 예술 사회의 인정도 받고 자연생태계의 무공해적 균형과 조화된 것이라면 더욱 이상적이겠다. 인간중심적 세계관은 환경파괴의 기초사상이다. 나 중심일 때 사회가 파괴되고 인간이란 동물이 지구상의 모든 생물의 중심이라고 생각할 때 자연생태계는 파괴된다. 이러한 의미에서 자연 중심적 사고방식을 기초로 자연적인 재료와 방법으로 무공해적 작품을 하는 것이 나의 목표이자 내 작품의 주제이다.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
• /
• 1992.08a
• /
• pp.130-134
• /
• 1992

본 연구의 목표는 혼성방파제의 무공 및 유공 케이슨에 작용하는 파압분포에 대한 기존의 연구결과를 조사, 분석, 정리하고 실제로 이들에 대한 수리모형실험을 실시하여 관측된 결과를 기존의 연구결과(곡본승리 등 1982, 고교중웅 등 1983, Goda 1985, Takahashi 1991)와 비교, 분석함으로써 케이슨에 작용하는 파압은 물론 기타 수리현상의 특성을 파악하는 데 있다.(중략)

• Electric Engineers Magazine
• /
• s.304
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• pp.54-55
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• 2007

• 보일러설비
• /
• s.56
• /
• pp.90-100
• /
• 1998

• Environmental engineer
• /
• s.16
• /
• pp.16-19
• /
• 1987

• 어항어장
• /
• s.42
• /
• pp.43-46
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• 1998