• Title/Summary/Keyword: Jeon-Nam Islands

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A Study on the Classification of Islands by PCA(II) (PCA에 의한 도서분류에 관한 연구(II))

  • 이강우;남수현
    • The Journal of Fisheries Business Administration
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    • v.15 no.1
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    • pp.58-80
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    • 1984
  • The classification of islands is prerequisite for establishing a development policy to vitalize many-sided function of islands. We try to classify the 440 inhabited islands which exist in Jeon-Nam area and Kyong-Nam area by means of PCA. PCA begins with making correlation matrix of orignal variables. From this matrix we can comprehend the rough relationships between two variables. Next, we look for the eigenvalues which are roots of characteristic equation of correlation matrix. The number of eigenvalues is equal to that of original variables. We choose the largest eigenvalue λ$_1$among them and then look for the eigenvector of correlation matrix corresponding to the largest eigenvalue. Linear combination of eigenvector obtained above and original variables is namely first Principal Component (PC). Using an eigenvalue criterion(λ$\geq$ 1), we choose 3 PCs in Jeon-Nam area and 2 PCs in Kyong-Nam area. But we decide to consider only two PCs in both areas to faciliate a comparative analysis. Now, loss of information is 31.7% in Jeon-Nam area and 26.64% in Kyong-Nam area. PCs extracted by preceding procedure have characteristics as follows. The first PC relates to aggregate size of islands in case of both areas. The second PC relates to income per household, factors of agricultural production and factors of fisheries production in Jeon-Nam area, but in Kyong-Nam area it means distance from island and income per household. A classification of islands can be attained by plotting component scores of each island in graph used two PCs as axes and grouping similiar islands. 6 groups are formed in Jeon-Nam area and 5 groups in Kyong-Nam area. The result of this study in kyong-Nam area accords with prior result of study.

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A Study on the Re-structuring and Planning Strategies for Regional Healthcare Facilities in Kwang-ju City and Jeon-nam Province (광주, 전남지역의 의료시설 재편 및 그 실행방안에 관한 연구)

  • Choi, Kwang-Seok
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.11 no.1
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    • pp.43-54
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    • 2005
  • This study is a second paper of the re-structuring strategies of healthcare facilities in Kwang-ju and Jeon-nam province for it's competition power in the emerging global health care market. Kwang-Ju city and Jeon-nam province have had difficulties in building a balanced healthcare system because of rapidly declining population, weakened healthcare infra-structure and geographical problems of healthcare supply by numerous islands. This paper presents the new approaching process for re-building healthcare network in the regional healthcare facilities planning. In addition, it analyzes health planning index, healthcare system, the concept of health care networking, etc. Finally, this presents the case study of regional healthcare facilities planning in Kwang-ju city and Jeon-nam Province.

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Power and Economic Simulation of Island for the Field Demonstration Test of Smart Microgrid System Based on Stand-alone Wind power (독립형 풍력기반 Smart Microgrid 시스템의 현장 실증 시험을 위한 도서지역 전력 및 경제성 시뮬레이션)

  • Kang, SangKyun;Lee, EunKyu;Lee, JangHo
    • New & Renewable Energy
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    • v.10 no.3
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    • pp.22-30
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    • 2014
  • The isolated self-generating electricity with diesel engine generator has been used in islands far away from main land. It costs high because of increasing oil price, and unsafe to have supplying oil and its related components by ship due to unexpectable marine conditions. Therefore there is the need for the hybrid system of renewable energy like wind or solar energy systems with oil engine generator, which can reduce oil use and extend oil supplying period. In this study, the feasibility of such hybrid system with smart micro grid on the eight islands of Jeon-nam province is surveyed to find good place for the demonstration test of the hybrid system. In each island, 3 wind turbine systems of 10 kW and photovoltaic of 20 kW are tested with already installed diesel engine. The performance and costs of the hybrid system in each island are compared in the given conditions of solar and wind energy potential. As a result of the study, Jung-ma island is recommended for the optimum place to make real field demonstration test of isolated hybrid generating and smart grid systems.

Analysis of Wind Resources of the South Seashore of JeonNam Province (전남지역 남해안 풍력자원조사 연구)

  • Kim, Young-Chan;Chung, Chin-Wha;Lee, Eung-Chae;Chun, Ch.-H.;Han, Kyung-Seop;Kim, Yong-Whan
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.11a
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    • pp.281-285
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    • 2006
  • As the needs of wind energy increase, the more sites for the wind farm are required. As a part of searching for the prominent wind farm site, specially for offshore wind farm, we chose 4 sites along the southern part seashore of JeonNam province based on the analysis of the data gathered by meteorological observatory ud have gathered wind data for more than a year by use of 40m Met masts installed in the representative locations, ie. small islands of 4 different bay area. The siting for the Met masts were very limited by the geographical circumstances The wind data of those areas show a little lower annual average wind speeds, for the wind farm development, of 4m/s to 5.5m/s at the height of 40m above the ground level of the respective islands. The detail figures of one year wind data of those area are presented in this report.

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A Study on the Construction of Hahwa - Island 25 KWp photovoltaic Power Generation Systems (하화도 25 KWp급 태양광 발전 시스템 설치에 관한 연구)

  • Lee, Man-Geun;Jung, Myung-Woong;Song, Jin-Soo
    • Proceedings of the KIEE Conference
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    • 1988.07a
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    • pp.883-887
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    • 1988
  • The results of the first demonstrative project of photovoltaic power generation system for the remote islands (Hahwa-do, Jeon-nam Province) were reported. The optimum design of a 25 KWp PV system and a 5 KWp diesel backup system were discussed.

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Lepidopterous Insects Composition in Jindo Island, Korea in Summer

  • Lee, Hyung-Keun;Kim, Do-Sung;Jeon, Yong Lak;Yoon, Hee-Nam;Lee, Jung-Hyo;Park, Seong-Joon
    • Animal Systematics, Evolution and Diversity
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    • no.spc9
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    • pp.51-72
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    • 2016
  • We surveyed the biodiversity of lepidopterous insects in Jindo Island using UV bucket trap in July 2016 to determine the relationship between surrounding environment and ecosystem in order to contribute to biodiversity conservation and management of coastal islands in Korea. Based on our survey results, a total of 262 lepidopterous insect species in 16 families were collected from Jindo Island. Members belonging to families Noctuidae and Geometridae made up approximately half of the total species (86 species [32.82%] in Noctuidae and 44 species [16.79] in Geometridae). There were 29 species (11.07%) belonging to Crambidae and 28 species (10.69%) belonging to Pyralidae. As a result of all collections based on previous literature and this study, a total of 730 species belonging to 34 families were collected from Jindo Island, including 33 protected species, 242 species (33.15%) belonging to Noctuidae (the most abundant), 124 species (16.99%) belonging to Geometridae, 79 species (10.82%) belonging to Crambidae, and 65 species (8.90%) belonging to Pyralidae. The most frequently collected species was Lamoria glaucalis in this syudy. Our results on the diversity of lepidopterous insects will provide basic information for future investigation on diverse changes in the ecosystem of Jindo Island, Korea.

The Historical Geography of Sacheon Bay Region -with Special Reference to Transportation, Fishery, and Industry- (사천만 연안의 지역 변화에 관한 연구 -교통.수산업.공업 기능의 변화를 중심으로-)

  • Lee, Jeon;Kwak, Chul-Hong
    • Journal of the Korean association of regional geographers
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    • v.5 no.2
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    • pp.119-132
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    • 1999
  • The Korean Peninsula, jutting southward from the Asian mainland into the Pacific Ocean, is surrounded by numerous bays and islands on three sides. The study area of this research is the coastal area surrounding the Sacheon Bay, which is located in the mid-southern tip of the peninsula. Historically, the bay region took the role of the main gate leading to the western part of Kyung-nam Do(Province) due to the fact that the bay is the nearest coast to Chinju, the central city of the province. The Sacheon Bay had provided important sea routes from the old days until the early twentieth century. Because of the bay's sea routes, the bay region has been militarily of great significance. Recently, road/rail/highway/airplane transportation functions have become gradually increased but sea transportation function has been decreased in the region. As the Sacheon Bay was rich in fishery resources, dozens of fishing villages in the bay region depended on fishery and marine product industries for long years. But the inflow of the fresh water used to cause serious damage to the fishing industry in the bay region after a drainage canal from the Nam River was constructed in 1969. As a result, the industry has dwindled gradually for last decades. Recently, a couple of industrial parks were constructed along the coast and many manufacturing factories were built on the parks. It has been expected that many jobs lost in fishery and agriculture are replaced by new opportunities in industry. More than half of the workers employed in the parks' factories commute from the city of Chinju. It is asserted in this paper that the transportation, fishery, manufacturing, and tourism functions of the Sacheon Bay region are closely associated with. The characteristics of the region can be well understood through the functional changes and associations.

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Design on Slopes Revegetation and Tentative Instruction on Construction Work (비탈면 녹화 설계 및 시공 잠정 지침)

  • Jeon, Gi-Seong;Kim, Nam-Choon;Lee, Tae-Ock
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.10 no.1
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    • pp.100-113
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    • 2007
  • In Korea, there has been no revegetation applicable standard for slopes formed by road construction work up to now, so revegetation work has been done using mostly foreign varieties in the manner of early revegetation. However, foreign varieties have some shortcomings; for example, they tend to be dried to death after construction work. Besides, due to the rift in the supporting soil, these revegetated varieties are often displaced from the slopes. Thus, the Ministry of Construction & Transportation on July, 2005 established revegetation standard on the slopes suited for the natural eco-system of Korea and organized positively recommending directions for using self-sewn plants growing near the slopes in overall consideration of soil, weather, regional conditions. The locations specified in this direction are the slopes at the road construction jobsite like the expressway, highways, and local roads. In addition, the Ministry's standard and directions stipulated that damaged slopes's natural environment and eco-system due to various road construction work should be restored, and thus a feeling of stability and pleasantness should be provided to road users as well. Also, the Ministry tried to select seed plants and revegetation measures suited for surrounding environment to put the environment-friendly slope revegetation measures into practice through the test revegetation work in order to prevent illegal construction practices and to improve the quality of revegetation. According to the direction, revegetation districts aimed at the slopes are divided into three ones in consideration of weather environment, regional environment, and forest environment as follows : national territory's core ecological green-land based district centering on the Taebaek Mountains; coastal ecosystem district including islands off the coast; inland eco-system district. The combination of revegetation plants according to environment revegetation districts, should be executed by dividing into herb-oriented type, woody plant colony type, and bio-species versatility restoration type, and the selection of seeding plants should be done in the presence of a supervisor and through test construction results and technology counseling from a specialist in natural eco-system restoration and revegetation measure seed combination standard according to environment revegetation districts. This direction will be executed in the manner of monitoring until the yea 2008 and 2009 it will be finalized and enforced on December, 2009.

A Study on the Development of Standard Diagnostic Table for Oak Mushroom Management and its Applicability (표고버섯 경영 표준진단표의 개발 및 현지 적용)

  • Jeon, Jun-Heon;Won, Hyun-Kyu;Yoo, Byoung-Il;Lee, Seong-Youn;Lee, Jung-Min;Ji, Dong-Hyun;Kim, Yeon-Tae;Kang, Kil-Nam;Oh, Duk-Sil
    • Journal of Korean Society of Forest Science
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    • v.102 no.2
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    • pp.272-280
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    • 2013
  • This study aims to develop a standard diagnostic table for management and administration that oak mushroom cultivators of forestry households can utilize. By diagnosing their current level of management with the table, the cultivators themselves will be able to grasp and address their operational challenges better. The table is composed of; questions on the status of forestry households; columns for a series of management performance indices, and; questionnaire with 4 categories and 20 subcategories to check the current level of management and administration by the households. In order to prepare the standard diagnostic table for oak mushroom management, 196 forestry households throughout 10 areas - Cheong-yang, Gong-ju, Bu-yeo and Seocheon in Chungcheongnam-do, Mun-kyung and Ye-cheon in Gyeongsangbuk-do, Jin-an in Jeollabuk-do, Jangheung and Jang-seong in Jeollanam-do, and Jeju Islands - were interviewed with and a total of 190 questionnaires were acquired and made use of in the result analysis. Then, the score on management level of each forestry household was determined in the way of aggregating scores from each subcategory. The overall average score of every household was calculated at 62.2 point with more than half of the respondents, 54.7%, belonging to the range of 60 to 80. When considered by regional groups, the average score of Jin-an was the lowest with 57.6 point while that of Jang-seong was the highest with 69.6 point. In case of the 'cultivation management' category, there were a lot of cultivators who expressed a negative awareness of the term 'pest control' because they had a tendency to think the term in connection with 'herbicides or pesticides'. So it is inevitable to adapt and modify existing groups and grades to make sure that the cultivators can make a right choice without confusing the concept 'pest control' with 'herbicides or pesticides'. Meanwhile, the average scores of 'management and administration' categories were mostly low. It was remarkable in these categories that forestry households in Jeolla province, which had remained in lower ranks in the other three categories, recorded higher scores than those in Chungcheong province, boasting a relatively high level of management and administration.