• Title/Summary/Keyword: C&진도

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파랑이론의 비교 연구

  • 최한규;구본수
    • 어항어장
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    • s.26
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    • pp.45-53
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    • 1994
  • 본 연구는 유한진폭파 이론(Stokes2, 3, 5차 이론, Streamfunction파 이론)과 미소진폭파 이론(선형파이론)의 각 이론해에 의한 자유수면 변동($\eta$), 물입자수평속도(u), 전파속도(C), 파장(L) 등의 비교 분석을 통하여 각 파랑이론의 적용범위를 검증하고자 했다.

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Studies on the Storage Stability of Jindo Hongju Pigment (진도홍주색소의 저장안정성에 관한 연구)

  • Kim, Seon-Jae;Park, Keun-Hyung
    • Korean Journal of Food Science and Technology
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    • v.24 no.2
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    • pp.183-186
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    • 1992
  • Jindo Hongju is a traditional liquor in Korea. The characteristic of Hongju are its unique flavour and red color which is extracted from the root of gromwell (Lithospermum erythrorhizon). It is due to these color and flavour that Hongju attracts visual charm. However, the commercial value of Hongju is reduced because of the discoloration of red pigment during storage. Therefore, factors which cause the discoloration of red pigment and methods to prevent discoloration were investigated. The results obtained from this study are summarized as follows. The factors that cause the discoloration were visible light, temperature (beyond $40^{\circ}C$), pH (above 10) and inorganic ion ($Cu^{2-}$). Among all the additives added, Cystein (100 ppm) was the most effective inhibitor of pigment discoloration.

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Distribution of Indicator Species of Copepods and Chaetognaths in the Southeastern Area of the Yellow Sea and Their Relationship to the Characteristics of Water Masses (황해 동남 해역의 수괴지표성 요각류 및 모악류의 분포와 수괴특성)

  • PARK Joo-Suck;LEE Sam-Seuk;KANG Young-Shil;LEE Byung-Don;HUH Sung-Hoi
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.25 no.4
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    • pp.251-264
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    • 1992
  • Distribution of indicator species of copepods and chaetognaths were studied as an indicator species of water mass in the southeastern area of the Yellow Sea. Undinula darwini, Lucicutia flavicornis, Pleuromamma gracilis, Euchaeta resselli, Euchaeta plane and Sagitta enflata were found to be reliable indicator species for determining warm water mass. Of these species, E. plana and E. rusrelli have a weak tolerance on the low temperature. Sagitta crassa was indicator species of neritic waters; Sagitta bedoti was that of mixing waters. Centropages abdominalis represented neritic cold waters. In February, U darwini, L. flavicornis, P. gracilis, E. russelli, E. plana and S. enflata occurred in the western waters of Cheju-Do where warm waters over $14^{\circ}C$ occupied. Centropages abdominalis occurred in the northern area beyond Chindo with water temperature less than $10^{\circ}C$. E. plana, E. russelli and S. bedoti were found at the regions between Cheju-Do and Chindo where the water temperature was $12- 14^{\circ}C$ corresponding to the mixing waters. Based on cluster analysis and T-S diagram in February three different water masses were identified from the south to the north. In August, water masses were analyzed at two different layers, 0-20m and 20m- bottom layers, separated by bhermocline depth. In 0-20m layer, E. plana and E. russelli were found from the western waters of Cheju-Do to Daehuksando. In 20m- bottom layer, E. russelli and E plena occurred at the northwestern waters of Cheju-Do with the water temperature warmer than $12^{\circ}C.\;C.$ abdominalis was found at the northern area beyond Chindo. Based on the cluster analysis and T-S diagram in August three different water masses at 0-20m and 20m-bottom layers were identified from the coast to the offshore. C. abdominalis was found at the adjacent water of Chindo at 0-20m layer and the northern area beyond Chindo at 20m~bottom layer. This fact suggested that the cold water mass existed at tile adjacent waters of Chindo in summer.

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Changes of asparagine content in potato (Solanum tuberosum L.) tuber during storage (저장 중 감자 아스파라진 함량의 변화)

  • Jin, Yong Ik;Cho, Ji Hong;Chang, Dong Chil;Im, Ju Sung;Park, Young Eun;Yu, Hong Sub;Jeong, Jin Cheol;Park, Kyeong Hun;Chung, Il Min
    • Journal of Plant Biotechnology
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    • v.39 no.4
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    • pp.300-304
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    • 2012
  • In order to research changes of asparagine content according to stage after harvest to storage, it was analysed asparagine content of potato tuber and potato sprout. The results of the asparagine content in potato cultivars after harvest ranked in cv. Superior, cv. Gahwang, cv. Atlantic and cv. Goun in descending order. The content of asparagine in potato was approximately 1300 mg/100g (D.W.) The changes the asparagine content according to storage condition and the difference of asparagine between tuber and sprout can be summarized as follows. In the asparagine content of potato cultivars, Little variation in the content was observed while potato tubers were stored at $4^{\circ}C$. However, after 3 months of storage at $10^{\circ}C$, the content increased by 9.7%, indicating that the content increases as the storage temperature and period increases. The content of asparagine also increased during sprouting of potato tubers. In the sprout, the proximal region contained 21% higher content of asparagines than the distal region, which suggests that the sprout develops with the increasing of the content of asparagines.

Virtual Platform based on OpenRISC (OpenRISC 기반의 버츄얼 플랫폼)

  • Jang, HyeongUk;Lee, Jae-Jin;Byun, Kyungjun;Eum, Nakwoong;Jeong, Sangbae
    • Smart Media Journal
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    • v.3 no.4
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    • pp.9-15
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    • 2014
  • A virtual platform models a processor core and the peripheral devices constituting the SoC in software. Major companies utilize a variety of platforms for product development with optimal SW+SoC integrated system architecture design and IP reuse based Top-Down design flow using a virtual platform. In this paper, we propose a virtual platform based on OpenRISC, an open source RISC based core. The proposed virtual platform supports high speed emulation of approximately 20 MIPS using DBT (Dynamic Binary Translation).