• Title/Summary/Keyword: the Jindo

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Native Environment and Growth Characteristics of Dendropanax morbifera Lev. In Korea

  • Park, Seong-Kyu;Park, Kyong-Ju;Lee, Jong il
    • Korean Journal of Plant Resources
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    • v.10 no.3
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    • pp.271-273
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    • 1997
  • This study was carried out to obtain basic envirinmental information of the native area and growth characteristics at different age of Dendropanax morbifera LEV. In the southern Korea. The Dendropanax morbifera LEV. Was grown naturally at Wando, Cheju(Mt. Halla), Yecheon(Kermoon island),Sinan(Hong isand), Jindo(Mt. Chermchill) and Haenam(Mt. Taeroon), all between 30 to 450m above the sea level. The soil characterisitics of the native area had a pH of 5.3 to 5.4 with 8.4 to 9.8% content of organic matter and 18.2 to 21.3% soil moisture. Flowering starting in the middle of July begun when the trees were 6 years old. Six year old trees are 129 cm in stem height, 34 mm in stem diameter,15.4 in number of leaves with petioles 12.9 cm long. Xylem sap can be obtained from over 10 year old trees that grew well and have over 10 cm stems in diameter.

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First Report of Foliar Blight on Dendropanax morbifera Caused by Alternaria panax

  • Deng, Jian Xin;Kim, Chang-Sun;Oh, Eun-Sung;Yu, Seung-Hun
    • Mycobiology
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    • v.38 no.4
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    • pp.316-320
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    • 2010
  • Leaf spot and blight disease was observed on two-year-old seedlings of Dendropanax morbifera (Korean name: Hwangchil tree) during July of 2008 in Jindo Island, Korea. Symptoms included yellow-brown to dark brown irregularly enlarged spots frequently located along the veins of leaves. The lesions were often surrounded by chlorotic haloes. Severe leaf blight and subsequent defoliation occurred when conditions favored disease outbreak. The causal organism of the disease was identified as Alternaria panax based on morphological characteristics and sequence analysis of the internal transcribed spacer region of rDNA. A. panax isolates induced leaf spots and blight symptoms not only on D. morbifera but also on the other members of Araliaceae tested. This is the first report of foliar blight caused by A. panax on D. morbifera.

The Design of Cable Damper System far Jindo Bridge and its Field Verification Test (진도대교 케이블 댐퍼시스템 설계 및 검증실험)

  • Seo, Ju-Won;Kim, Nam-Sik;Ahn, Sang-Sup;Jeong, Woon
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2001.09a
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    • pp.302-310
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    • 2001
  • In order to lessen cable vibration, new cable damper system with high damping rubber was developed using the basis of the LRB design scheme. The analysis model of cable damper system incorporate voigt-kelvin damper model into the nonlinear cable analysis model. To achieve maximum damping capacity both reducing damper stiffness and developing high damping rubber were performed. As a result of verification test, the high damping rubber damper shows its effectiveness in improving cable damping capacity.

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First Record of Naturalized Species Trifolium resupinatum L. (Fabaceae) in Korea (한국 미기록 귀화식물: 거꿀꽃토끼풀(콩과))

  • Lim, Yongseok;Seo, Won-Bok;Choi, Yeong-Min;Hyun, Jin-Oh
    • Korean Journal of Plant Resources
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    • v.27 no.4
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    • pp.333-336
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    • 2014
  • Trifolium resupinatum L. (Fabaceae) is native in Southern Europe and Southwesten Asia. This species is known as a naturalized plant, which is widely distributed in the world. We first found it in the Eushincheon river bank of Jindo Isl., Jeollanam-do, South Korea. T. resupinatum can be easily distinguished from the other species of the same genus by its resupinate flower. The Korean name "Geo-kkul-kkot-to-kki-pul" indicates its distinctive characteristic of flower.

A New Species of Amonardia (Copepoda: Harpacticoida: Miraciidae) from the Cultivated Brown Alga, Undaria pinnatifida

  • Song, Sung-Joon;Rho, Hyun-Soo;Kim, Won
    • Animal cells and systems
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    • v.11 no.1
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    • pp.69-77
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    • 2007
  • Both sexes of a new species of Miraciidae belonging to the genus Amonardia Lang, 1948 are described. All materials collected from the cultivated brown alga, Undaria pinnatifida of Gijang, Korea. So far only one species, A. normani (Brady, 1872) from the algal bed at Jindo Island was recorded in Korea. The new species can easily be distinguished from its congeners by the combination of characters as follows: (1) shape of first antennular segment in female, (2) setal formular of mandible and maxillule, (3) setae of female sixth leg in female, and (4) shape of P2 endopod and exopod of fifth leg in male.

A Case Study on the Foundation Work of Uldolmok Tidal Current Power Plant (울돌목 시험조류발전소의 기초 시공 사례)

  • Kwon, Oh-Jung;Oh, Myoung-Hak;Lee, Kwang-Soo;Park, Jin-Soon
    • 한국신재생에너지학회:학술대회논문집
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    • 2009.11a
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    • pp.610-613
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    • 2009
  • Uldolmok tidal current power plant was constructed on May 2009 at Jindo Gun in Korea. However it had much trouble in installing structure due to the extremely fast tidal current velocity(max. 5.5m/sec) and the jacket type plant structure. Therefore in this paper, The characteristics of tidal current and sea bed topography at Uldolmok tidal current plant site are investigated, and the detailed foundation work process of the plant is described.

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Random vibration and deterministic analyses of cable-stayed bridges to asynchronous ground motion

  • Soyluk, K.;Dumanoglu, A.A.;Tuna, M.E.
    • Structural Engineering and Mechanics
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    • v.18 no.2
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    • pp.231-246
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    • 2004
  • In this paper, a comparison of various random vibration and deterministic dynamic analyses of cable-stayed bridges subjected to asynchronous ground motion is presented. Different random vibration methods are included to determine the dynamic behaviour of a cable-stayed bridge for various ground motion wave velocities. As a numerical example the Jindo Bridge located in South Korea is chosen and a 413 DOF mathematical model is employed for this bridge. The results obtained from a spectral analysis approach are compared with those of two random vibration based response spectrum methods and a deterministic method. The analyses suggest that the structural responses usually show important amplifications depending on the decreasing ground motion wave velocities.

Successful Management of a Life Threatening Canine Multicentric Lymphoma with Pulmonary Thromboembolism

  • Moon, Min-Young;Suh, Guk-Hyun;Choi, Hyeong-Il;Kim, Joonyoung;Kim, Ha-Jung
    • Journal of Veterinary Clinics
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    • v.35 no.5
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    • pp.218-221
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    • 2018
  • A 12-year-old, intact female Jindo was referred to our clinic due to the enlargement of all lymph nodes, as well as severe dyspnea. All palpatible lymph nodes were highly swelling and enlargement. The dog was diagnosed as end stage of multicentric lymphoma with multi-organ metastasis. In addition, the dog was diagnosed as having a pulmonary thromboembolism via computed tomography (CT) and D-dimer concentrations and prothrombin time (PT) results. This case report describes that lymphoma can be associated with pulmonary thromboembolism which is life threatening complication in dogs. The present case was managed successfully with chemotherapy and antithrombotic treatment.

Analysis of Acoustic Noise Characteristics of Jindo-Cheju HVDC (진도-제주 HVDC 변환설비 소음특성 분석)

  • Kim, Jae-Han;Kim, Chan-Ki;Lee, Seong-Doo;Kim, Jin-Young
    • Proceedings of the KIPE Conference
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    • 2010.07a
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    • pp.574-576
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    • 2010
  • HVDC converter station consists of a number of noise sources such as converter transformer, ac filter, cooling system and so on. In this paper, we analyzed the simulation results of the outdoor acoustic noise characteristics for HVDC converter station. It shows that maximum noise level in boundary of HVDC converter station exceeds regulation value. The main factors in generating maximum noise level are ac filter and converter transformer. Then we applied some soundproof countermeasure in HVDC converter station. Shielding wall is enough to reduce transformer noise level but not enough to reduce ac filter noise level. In case of ac filter, soundproof building is effective in satisfying noise level regulation in boundary of HVDC converter station. In addition, we also studied effects of season, soundproof woods, ground.

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Busbar Design of High Power HVDC Converter (대용량 HVDC 컨버터의 Busbar 설계)

  • Kim, Chan-Ki;Park, Yong-Hun;Kim, Jin-Young
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.7
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    • pp.923-927
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    • 2012
  • This paper studies a busbar design of high power HVDC converter. In order to design a electrical busbar, we need to consider electrical, mechanical and environmental condition. In this papre, we focus on the electrical design in terms of temperaure and currnet. Busbar conductor can be damaged to burn due to the temperature and fault current of busbar. In this paper, Busbar design of Jindo-Jeju HVDC #2 System that will start operate in 2012 is considered.