• Korean Journal of Soil Science and Fertilizer
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• v.41 no.3
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• pp.158-163
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• 2008

This study was carried out to elucidate the relationship between yields and inorganic nutrient contents, and then establish of critical range of inorganic nutrient contents in leaves of watermelon in protected cultivation in Gochang from 2004 to 2006. In considering the yields and nutrient contents of watermelon, the critical ranges of macro-nutrient contents in leaves of watermelon at 20 days after transplanting were in N 5.0~6.6%, P 0.30~0.57%, K 3.5~4.2%, Ca 1.7~3.8% and Mg 0.20~0.42%, respectively. The critical ranges of micronutrient content, such as Fe, Mn, Zn, Cu and B, were not found the regular trend with different growth stages. However, the critical range of micronutrient contents in leaves of watermelon at 20 day after transplanting were in Fe 96~128, Mn 67~201, Zn 40~60, Cu 6~9 및 B $41{\sim}82mg\;kg^{-1}$, respectively. Finally, these results might be used at the indicator for critical nutrient contents for diagnosis of nutritional disorder in watermelon in protected cultivation.

• Journal of Applied Biological Chemistry
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• v.44 no.1
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• pp.12-15
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• 2001

The antioxidative compounds and antioxidant contents of ginger (Zingiber officinale) rhizomes were determined. Substances reextracted using ethyl acetate from crude methanol extract of fresh ginger rhizome were separated through thin layer chromatography. Ten phenolic antioxidative bands were visualized through color reactions using ferric chloride-potassium ferricyanide and 1,1-diphenyl-2-picrylbydrazyl (DPPH). The antioxidative compounds were purified through preparative TLC and high performance liquid chromatography (HPLC), among which, five antioxidants were identified as 4-, 6-, 8-. and 10-gingerols and 6-shogaol on the basis of their molecular weights determined through LC-MS. As shown in experiments using DPPH free radicals, 6-Gingerol and PT4-HP8 (unknown) were revealed to be more efficient than BHT (butylated hydroxy toluene). Contents of gingerols were determined through reverse phase HPLC. Total gingerol contents (sum of 6-,8-, and 10-gingerols) in rhizomes of different ginger varieties varied significantly. The HG55 (collected at Wanju district in Korea) and the HG52 (imported from Brazil) showed the highest gingerol contents.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.3
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• pp.278-283
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• 2022

To develop a value-added anchovy Engraulis japonicus sauce, we examined processing conditions and quality characteristics of rapidly fermented, high purity anchovy sauce (RPAS) by adding 30% (w/w) intermediate salt-fermented anchovy material. RPAS had higher total nitrogen and amino nitrogen contents, and lower salinity than traditional anchovy sauce (TAS). The total amino acid contents of RPAS and TAS were 17,626.8 and 12,808.2 mg/100 g, respectively, and the major amino acids were alanine, glutamic acid, lysine, cystine, valine, and leucine. The histamine contents of RPAS and TAS were 12.6 and 25.2 mg/100 g, respectively, and the protease activity levels were 0.851 and 0.595 unit/mg, respectively. These results demonstrate that RPAS was more flavorful, and could shorten the salt-fermentation period by more than half compared to TAS, and can serve as a high-end fish sauce.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.301-302
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• 2011

2007년 12월 7일 발생한 허베이스피리트호 원유 유출사고를 계기로 국가 해양유류오염사고 대응체제 문제점이 부각되었고 이에 따라 해양 유류사고에 대한 대응 및 오염 진단, 복원을 지원할 수 있는 과학기술지원 체계 구축이 제기되었다. 본 논문에서는 실시간 해양오염 예측을 위해 필요한 해양 및 기상 예측 정보 통합 시스템을 소개한다. 본 시스템에서는 그리드 기술을 통한 해양 및 기상 예측 모델 수행에 필요한 사용자 환경 및 고성능 컴퓨팅 자원을 제공하고, 이를 통해 생성된 예측 자료를 통해 실시간 해양 오염 예측 정보를 생성하여 제공한다.

• Proceedings of the Korea Contents Association Conference
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• 2007.11a
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• pp.405-409
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• 2007

The RSS which is a kind of syndication technology enables a part or the whole of the content which it provides from web site to be able to be used in different service. It is protocol to summarize and share various contents on web site. This Paper propose the ways to implement system to aggregate RSS feed and archive it and the services using it. Also, the users register the channel RSS to the RSS aggregator system and recommend it. It can drive to share of knowledge between researchers.

• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.453-455
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• 2010

정보 홍수화 시대에 있어 과학기술자들의 정보이용방법은 다양해지고 있으며 그에 따라 인터넷 서비스를 이용한 지식교류에 대한 기대치도 높아지고 있다. 본 논문에서는 한민족과학기술자네트워크(KOSEN,www.kosen21.org)의 운영을 바탕으로 웹기반 서비스를 통한 과학기술자들의 지식교류 현황과 교류사례들을 연구하였다.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.397-398
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• 2018

이 연구의 목적은 블록체인 기술에 관한 최신 연구동향을 살펴보는 것이다. 2010년 이후 블록체인 기술에 관한 연구가 급증하고 있다. 블록체인 기술 연구분야와 관련하여 가장 생산적인 연구자와 국가를, 많은 논문을 발표한 학술지를 탐지하고자 한다. 블록체인 기술 연구와 관련하여 가장 관련있는 키워드들을 밝혀내고자 한다. 여러 관점에서 블록체인기술 연구에 대한 빅픽쳐를 제공하고자 한다.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.271-272
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• 2011

슈퍼컴퓨터 기반 시뮬레이션을 수행하기 위해서는 해석 프로그램에서 받아들이는 형태의 입력 파일을 수작업으로 작성해야 할 뿐만 아니라, 명령어 기반 인터페이스에 익숙하여야 한다. 본 논문에서는 가상척추 시뮬레이션을 지원하기 위한 슈퍼컴 기반 가상 척추 시뮬레이션 환경을 소개한다.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.327-328
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• 2011

본 연구는 분야별 핵심 연구자를 선별하기 위한 방법론을 다루고자 한다. 핵심 연구자를 선별할 때 가장 흔히 사용하는 방법 중에 하나는 높은 피인용회수(Timces Cited)를 갖는 연구자를 찾는 것이지만 피인용회수가 곧 연구 성과의 순위를 대변한다고 볼 수 없다. 본 연구에서는 특정 학문 분야에서의 연구 성과에 대한 분석을 토대로 핵심연구자를 선별하기 위한 요인들을 수립하고 검증하고자 한다.

• Korean Journal of Soil Science and Fertilizer
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• v.40 no.6
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• pp.471-475
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• 2007

This study was carried out to elucidate the relationship between yields and inorganic nutrient contents, and then establish of critical range of inorganic nutrient contents in leaves of net melon in protected cultivation in Naju from 2004 to 2006. In considering the yields and nutrient contents of net melon, the critical ranges of macro-nutrient contents in leaves of net melon at 25 days after transplanting were in N 3.4~4.8%, P 0.4~0.7%, K 3.4~5.1%, Ca 2.7~4.1% and Mg 0.6~0.8%, respectably. The critical ranges of micronutrient content, such as Fe, Mn, Zn, Cu and B, were not found the regular trend with different growth stages. However, the critical range of micronutrient contents in leaves of net melon at 25 days after transplanting were in Fe 102~164, Mn 52~116, Zn 28~98, Cu 7~15 and B $36{\sim}72mg\;kg^{-1}$, respectably. Finally, these results might be used at the indicator for critical nutrient contents for diagnosis of nutritional disorder in net melon in protected cultivation.