• 제목/요약/키워드: Korean peninsular

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파랑 역추산 자료로부터 추정된 우리나라 남부해역의 파력 부존량 연구 (Analysis of Wave Power Resources in the Southern Sea of Korea estimated by Using Hindcasted Wave Data)

  • 김건우;정원무;박진순;이광수
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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    • pp.235.2-235.2
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    • 2010
  • In this study, the wave power resources at the southern sea of Korea were estimated by using the hindcasted wave data of previous researches. The used data were wave heights, periods and directions which were hindcasted around the Korea peninsular from 1979 to 2003. The spatial resolution of the hindcasted data is $1/6^{\circ}$(about 18 km). In winter, the northwest monsoon increase the wave power, while the wave power around Korea peninsular is very small in spring. The maximum value of the annual mean wave power is about 13 kW/m at Gageo-do, Heuksan-do and western region of Jeju-do, while those at the southern sea of Korea is only 4 kW/m, which is relatively small. The wave power at Korean east sea is lower than that of Korean southern sea. We obtained the wave resources information, in a fine grid, at Gageo-do, Heuksan-do, and western sea of Jeju-do, by solving SWAN model with the boundary conditions of hindcasted wave data.

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한반도 통일과 군사통합 (군사적 과제를 중심으로) (Unification of the Korean Peninsula and Military Integration Focusing on the Military Tasks)

  • 한관수
    • 융합보안논문지
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    • 제15권7호
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    • pp.125-134
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    • 2015
  • 이 논문은 한반도 통일이 가시화되고 여건이 조성되어 남북한 군사통합을 추진하게 될 때 무엇을 준비하고 실행해야 하는가를 군사 과제를 중심으로 연구하는데 목적을 두었다. 현 상황에서 남북한 통일의 시기를 예단하기는 제한되나 군사적 폭력을 관리하는 군사통합은 평시부터 준비가 되어 있어야 한다. 만일 군사통합이 실패하면 통일 자체도 위태롭게 되기 때문에 실천적 측면에서 정교한 준비가 요구된다. 이 연구에서는 다음의 주제에 대한 해결방안을 제시하고자 한다. 한반도에 적합한 군사통합의 유형과 전제조건은 무엇인가? 남북한 군사통합 추진 시 군사적 과제는 무엇인가? 이 중 핵심과제와 중요과제는 무엇이고 실천적 측면에서 어떻게 준비되어야 하는가?

Effect of Mycorrhizal Treatment on Growth of Acacia spp. On Sandy BRIS Soils in Peninsular Malaysia

  • Lee, Su See;Mansor, Patahayah;Koter, Rosdi;Lee, Don Koo
    • 한국산림과학회지
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    • 제95권5호
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    • pp.516-523
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    • 2006
  • Marginal soils such as BRlS (Beach Ridges Interspersed with Swales) soils and ex-tin mining land make up approximately 0.5 million ha or about 2% of Malaysia's land area. In the coastal areas of the east coast of Peninsular Malaysia impoverished sandy BRIS dominates the landscape with most lying idle as there is no national management plan for their utilization. A field study was carried out to see whether mycorrhizal application had any effect on the growth of three exotic Acacia spp., i.e. Acacia auriculiformis, A. mangium and Acacia hybrid (A. auriculiformis ${\times}$ A. mangium) on BRIS soils. Two types of mycorrhizal inoculum, namely, a commercially available arbuscular mycorrhizal inoculum marketed as $MycoGold^{TM}$ and an indigenous ectomycorrhizal Tomentella sp. inoculum were tested. In the initial six months, height growth of all three tree species inoculated with the arbuscular mycorrhizal inoculum was significantly improved compared to the ectomycorrhizal inoculated and uninoculated control plants. The mycorrhizal effect was not evident thereafter and repeated application of the arbuscular mycorrhizal inoculum may be necessary for continued growth enhancement. Of the three species, A. mangium had the highest relative height growth rate over the 24 months on BRlS soils.

Climatological Trend of Sea Water Temperature around the Antarctic Peninsula Waters in the Southern Ocean

  • Lee, Chung-Il;Kim, Sang-Woo;Kim, Dong-Sun;Yoon, Moon-Geun
    • 한국환경과학회지
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    • 제21권2호
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    • pp.125-133
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    • 2012
  • Climatological trend for the period of 1970 to 2009 in sea water temperature around the Antarctic Peninsular waters in the Southern Ocean was investigated. During the period from 1970 to 2009, sea water temperature in the top 500 m water column except 100 m increased at a rate of $0.003-0.011^{\circ}C{\cdot}yr^{-1}$, but at 100 m it decreased at a rate of $-0.003^{\circ}C{\cdot}yr^{-1}$. Although long-term trend is generally warming, there were several periods of sharp changes between 1970 and 2009. Annual mean sea water temperature between surface and 500 m except 100 m decreased from the early of 1970s to the end of 1980s, and then it increased to the end of 2000s. In the entire water column between the surface and 500 m, sea water temperature closely correlated with the El Nino events expressed as the Southern Oscillation Index(SOI), and SOI and sea water temperature have a dominant period of about 3-5 years and decade.

Neofusicoccum ribis Associated with Leaf Blight on Rubber (Hevea brasiliensis) in Peninsular Malaysia

  • Nyaka Ngobisa, A.I.C.;Zainal Abidin, M.A.;Wong, M.Y.;Wan Noordin, M.W.D.
    • The Plant Pathology Journal
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    • 제29권1호
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    • pp.10-16
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    • 2013
  • Hevea brasiliensis is a natural source of rubber and an important plantation tree species in Malaysia. Leaf blight disease caused by Fusicoccum substantially reduces the growth and performance of H. brasiliensis. The aim of this study was to use a combination of both morphological characteristics and molecular data to clarify the taxonomic position of the fungus associated with leaf blight disease. Fusicoccum species were isolated from infected leaves collected from plantations at 3 widely separated locations - Selangor, Perak, and Johor states - in Peninsular Malaysia in 2010. All the isolates were identified according to their conidial patterns and DNA sequences generated from internal transcribed spacers (ITS1 and ITS2), the 5.8S rRNA, and an unknown locus (BotF15) containing microsatellite repeats. Based on taxonomic and sequence data, Neofusicoccum ribis was identified as the main cause of leaf blight disease in H. brasiliensis in commercial plantations in Malaysia. A pathogenicity trial on detached leaves further confirmed that N. ribis causes leaf blight disease. N. ribis is an important leaf pathogen, and its detection in Malaysia has important implications for future planting of H. brasiliensis.

Surveys of Vegetation in the Peninsular Geography of Youngweol

  • Yun, Sei-Young;Shin, Young-Seob;Yun, Min-Young
    • 한국자원식물학회지
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    • 제20권6호
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    • pp.540-543
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    • 2007
  • We have investigated the vegetation in the peninsula located in Ongjeong-Li Seomyeon in Youngweol-gun. Since this is a limestone area, boxtrees, Abelia mosanensis T. H. Chung ex Nakai, and Selaginella stauntoniana Spring were abundant, as these are types of vegetation characteristic of limestone areas. Pinus densiflora S. et Z. was the most dominant woody plant, but vegetational changes, such as the dominance of Quercus variabilis Blume, Quercus dentata Thunb, and Quercus mongolica Fischer, were observed in spots. In particular, the growth of nursery plants of pinus densiflora S. et Z. was not observed, and young trees like Quercus mongolica Fischer grow as low vegetation of Pinus densiflora S. et Z.. Thus, the ecological succession of Quercus mongolica Fischer is predicted. Outside the investigation area, as herbaceous plants, various vegetations were observed, including Selaginella stauntoniana Spring, Thalictrum coreanum H. Lev., Mukdenia rossii(Oliv.) Koidz., Platanthera freynii Kraenzl., Cephalanthera longibracteata Blume, Potentilla dickinsii Franch., Patrinia rupestris(Pall.) Juss., Swertia pseudochinensis H. Hara, Vicia venosa(Willd.) Maxim., Pyrola japonica Klenze ex Alef., Disporum smilacinum A. Gray, Artemisia stolonifera(Maxim.) Kom. for. Stolonifera, Smilax nipponica Miq., Adenophora triphylla var. japonica(Regel) H. Hara, Isodon inflexus(Thunb.) Kudo, Gentiana scabra Bunge for. Scabra, Polygonatum odoratum var. pluriflorum(Miq.) Ohwi, Dioscorea quinqueloba Thunb., Syneilesis palmata(Thunb.) Maxim., Asparagus schoberioides Kunth, Eupatorium japonicum Thunb. ex Murray, Galium kinuta Nakai & Hara, Saxifraga fortunei var. incisolobata, Lilium amabile Palib., Siberian iris, Dictamnus dasycarpus Turcz., Atractylodes ovata(Thunb.) DC., and Lysimachia clethroides Duby.

Temporal and Spatial Characteristics of Sea Surface Winds over the Adjacent Seas of Korean Peninsular - Spectral Analysis.

  • Lee, Heung-Jae;Na, Jung-Yul;Han, Sang-Kyu
    • 한국해안해양공학회:학술대회논문집
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    • 한국해안해양공학회 1995년도 정기학술강연회 발표논문 초록집
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    • pp.20-25
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    • 1995
  • Surface wind field over an ocean plays a very important role not only to generate wind-driven current, but also to control heat exchange between ocean and atmosphere. However, the surface wind-field used for the ocean circulation and heat exchange is usually estimated by indirect methods because of lack of observed wind data and incomplete spatial coverage. (omitted)

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기상자료를 이용한 논의 일 잠재증발산량 추정 (Estimation of Daily Potential Evapotranspiration in Paddy Field Using Meteorological Data)

  • 노재경
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 2002년도 학술발표회 발표논문집
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    • pp.5-8
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    • 2002
  • Daily potential evapotranspiration was estimated using meteorological data which are observing regularly such as rainfall, temperature, humidity, wind speed, and duration of sunshine. Penman method is used practically in estimating evapotranspiration at present, and its regional coefficients were derived at 19 stations in the Korean Peninsular. Because meteorological data are observing at 77 stations under the Korea Meteorological Administration, the methodology of estimating evapotranspiration using meteorological data will be able to be applied in more regions than Penman method.

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이란의 핵협상 과정 분석과 정책적 함의 (An Analysis on the Iranian Nuclear Agreement Process and Political Implication)

  • 백동환;권정민
    • 융합보안논문지
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    • 제15권6_1호
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    • pp.33-42
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    • 2015
  • 2015년 7월 이란과 서방국가와의 잠재적인 핵협상이 극적으로 체결됨에 따라 오랜 기간 동안 문제되었던 이란의 핵 문제가 서서히 해결되고 있다. 이란의 핵협상 과정을 눈여겨 봐야 하는 이유는 한반도 역시 북한의 핵문제로 인해 큰 위협을 받고 있기 때문이다. 북한과 이란의 핵문제를 비교할 경우 양 국의 정치체계와 구조, 핵협상 과정에서 큰 차이가 있기 때문에 북한의 핵문제를 해결하기 위한 정책적 시사점을 찾기가 사실상 어렵다. 일부에서는 이란의 핵문제와 북한의 핵문제와는 상당한 차이가 있기 때문에 이란의 핵협상으로부터 북한의 핵문제 해결을 위한 시사점을 찾기 힘들 것이라는 부정적 견해를 내고 있고 또 다른 한편에서는 이란의 핵협상 결과가 분명 북한의 핵문제에 긍정적 영향을 미칠 수 있는 요인을 찾을 수 있을 것이라는 견해를 제시하고 있다. 이란과 북한의 핵문제가 상당한 차이가 있음에도 불구하고 이란의 핵 협상과정에서 북핵문제 해결을 위한 긍정적인 방안을 찾고자 하는 것은 그만큼 북한의 핵문제가 한반도 전체의 사활과 관련된 문제이기 때문이다. 본 연구에서는 이란의 핵협상 타결과정과 성공요인을 분석하는 데 초점을 맞추고, 분석된 요인으로부터 북한의 핵문제 해결을 위한 시사점을 알아보고자 한다.