• Title/Summary/Keyword: middle area of Korea

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Change of TC Activity Around Korea by Arctic Oscillation Phase (북극진동의 위상에 따른 한국 부근에서의 태풍 활동 변화)

  • Choi, Ki-Seon;Kim, Tae-Ryong
    • Atmosphere
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    • v.20 no.4
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    • pp.387-398
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    • 2010
  • This study shows that frequency of tropical cyclone (TC) around Korea in summer (June-September) has positive relation with Arctic Oscillation (AO) in the preceding April. In a positive AO phase, each of anomalous cyclone and anomalous anticyclone is developed in low latitude and middle latitude regions of East Asia from the preceding April to summer. As a result, while anomalous southeasterly around Korea serves as a steering flow that TCs move toward this area is strengthened, northwesterly that reinforced in southeastern area of East Asia plays a role in preventing TCs from moving toward this area. In addition, due to this distribution of pressure systems developed in this AO phase, TCs tend to occur, move and recurve in further northeastern region in the western North Pacific than TCs in a negative AO phase. On the contrary, TCs in a negative AO phase mainly move westward toward southern China or Indochina Peninsula from Philippines. Eventually, intensity of TCs is weaker than those in a positive AO phase due to the terrain effect caused by high passage frequency of TCs in mainland China.

A Study on the Perceptions of Food & Nutriton Section and Eating Behaviors of Middle School Students (중학생의 식생활 단원에 대한 인식과 식행동에 관한 연구)

  • 김경애;최현덕
    • Journal of Korean Home Economics Education Association
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    • v.11 no.2
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    • pp.89-110
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    • 1999
  • The purpose of this study was to investigate the perception and eating behaviors of middle school students in Kwangju area about food and nutrition section of Home Economics course. The subjects were 480 middle school students. The major results were as follows: On the perception f food and nutrition section, the 1st graders learned ‘how to settle the problems related to food and nutrition and food choices’. The 2nd graders learned ‘the knowledge and principle of food and nutrition for improving dietary life’. The 3rd graders learned ‘actual dietary life functions like arranging menu and preparing meals’. Consequently, there was a significant difference in each grade and all boy and girl students have the highest response to the item ‘they learn how to settle the nutrition problem and foods choices’. On the interests in food and nutrition section, lower graders and girl students have higher interest than hgiher graders and boy students. The area which was considered as most interesting in food and nutrition sections was ‘cooking’ in all students. The perception of the concern on dietary life after learning food and nutrition section was higher in the 1st graders. On the perception of the area where was a great change in their own dietary life after learning food and nutrition section, the 1st graders responded there was a great change in ‘balanced dietary life’, the 2nd graders in ‘eating habit and nutrition of adolescence’and the 3rd graders in ‘cooking’. Especially, girl students showed more changes. On the perception of degree which food and nutrition section gives a help to actual life, students over 50% responded that it was helpful to their actual life. This showed that the lower the grades, the more help it gave to those students. On the perception of mother’s job, the students with working mother considered that they learned ‘actual dietary life functions like functions like arranging menu and preparing meals’from the food and nutrition section. In addition, they had high interests in the area of ‘cooking’. It was recognized that as the family size was greater, the food and nutrition section gave more helps to actual life. On eating behaviors of breakfast, the higher the grade, the more frequent they don’t have breakfast, boy students have more frequencies of having breakfast than girl students and the primary reason of not having breakfast is poor appetite. On whether going without a meal affects study or not, most of the 1st, 2nd and 3rd graders whether they are boys and girls or not responded it affected their study. On eating behaviors of lunch, most of boy and girl students in the 1st, 2nd 3rd grade have lunch box. On eating behaviors of supper, eating time is usually between 7:00 and 8:00 p.m and eating hour is mostly 10 or 15 minutes. On eating behaviors between meals, frequency of eating between meals is mostly once or twice a day and girl students have more frequencies of eating between meals, and the cause was hunger commonly in boy and girl students and ‘killing time’in girl students. The focus in getting the foods is ‘taste’and favorite food is fruit regardless of the grade.

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Study on the present condition and characteristic of the costumes excavated in Chonnam area (남도지역 출토복식의 현황과 특징 연구)

  • 안명숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.25 no.2
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    • pp.197-205
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    • 2001
  • It is possible to examine the costume of Chosun era that tombs excavated in chonnam area, have contained various kinds of clothes. There are six tombs in which costumes have been excavated in Chonnam provinces. One(Go un) is tomb of the early years of Chosun Dynasty and the other tombs is those of the middle years of Chosun Dynasty(16∼17 century). There were many kinds of Po which was called Jickryung, Danryung, Chullik, Dappo, Jangui, So-changui etc, and contained chechori, skirts, under-trousers in tombs. But there are not see Kuui, Dopo that excavated in other area. Chullik showed the features of winkle, sleeves and the ratio of length. Dappo was only to be seen in a Go uns grave. Mens chechori collar(kit) was called Mokpankit in all, and womans chechori collar was called Kalkit or Tangkokit. The length of chechori was different according to the times. Most trousers are types of underwear and also there are Sapok tousers, open trousers. The characterstics of excavated costumes are not regional feature but trend of the times. The costumes excavated in Chonnam area are similiar to those excavated in other area at the same times.

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A study on the formation and change prosess of Deagu traditional housing (대구도심지 전통도시주택의 형성과 변화과정에 관한 연구)

  • Choi, Ji-Ae;Beak, Young-Houm;Kim, Joo-Ya
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2008.11a
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    • pp.217-221
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    • 2008
  • The goal of this research is to analyze interrelationship for layout of dwelling house and variation of its side plane by introducing concept of space in order to address as to how Korean traditional houses had been formed and varied in the middle of advancing modern city. In addition, this paper also has its meaning in a way that it identified how Korean traditional houses have been changed, and thus make residents more comfortable to live there by reviving their past characteristics, and make users have traditional food culture. Targeted area for this paper is limited to south-eastern area of Daegu such as Namsanjung, Myeongchijung, Sijangjung, Shinjung and Dalsungjng which was group dwelling houses of people of Chosun Dynasty during Japanese colonial rule' era ($1910{\sim}1945$). Among those places, the paper has chosen a place where Korea traditional houses were well preserved, variation of road and fields was less 1930s, and residential type is easy to effectively compared. As the result of this research, time when traditional cities were changed into new type of city residential area is believed to be around 1930s, and traditional residential area, through its transitional process, is believed to be changed to modern residential area. It also indicates that change of organizational road and fields directly had influence on change of houses.

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Seroprevalence of paratuberculosis in Korean cattle in western Jeonbuk area, Korea (전북 서부지역 한우에서 요네병 유병률 조사)

  • Chu, Keum-Suk;Kim, Sang-Hun;Ha, Yong-Su;Lee, Jeong-Won
    • Korean Journal of Veterinary Service
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    • v.36 no.2
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    • pp.133-137
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    • 2013
  • The purpose of this study was to investigate the seroprevalence of paratuberculosis in Korean cattle in western Jeonbuk area. From February 2012 to January 2013, blood samples were collected from 2,606 Korean cattle of 263 farms. As a result, 60 (2.3%) heads of 46 (17.5%) farms were positive on the ELISA test for paratuberculosis. Based on regional analysis, 18 (19.6%) out of 92 farms and 24 (2.5%) out of 941 heads in Iksan area, 28 (22.0%) out of 127 farms and 36 (2.8%) out of 1,291 heads in Kimje area were positive but samples from Gunsan area were all negative. According to scale breeding, small scale (below 50 heads) breeding showed the most high prevalence rate compared to middle (50 to 99 heads) or large (over 100 heads) scale breeding. To clarify the relation between number of heads and paratuberculosis prevalence, some additional analysis would be required in further, though.

An Analysis of Iran's Maritime Strategy from a Structural Perspective on Middle East International Relations: Focusing on Defensive Realism (중동 국제관계에 대한 구조적 관점에서의 이란 해양전략에 대한 분석: 방어적 현실주의 관점을 중심으로)

  • Oh, Dongkeon
    • Maritime Security
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    • v.1 no.1
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    • pp.93-117
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    • 2020
  • Four cargo ships were ambushed by bombs in 2019 while navigating in the Strait of Hormuz. It was not clear who attacked those ships, however, many nations including the United States argued that it was Iran due to several reasons. The United States established the maritime collective defense system named International Maritime Security Construct (IMSC) in order to protect the maritime security in the Strait of Hormuz, without disclosure against whom it is aimed. Persian, who uses the Persian language unlike other countries in the Middle East, is the major ethnic group in Iran, and most of them believe Shi'ah Islam while most of the Arabs in the Gulf countries adhere to Sunni Islam. It seems that historic and religious motives caused the bipolar system in the Middle East, however, it is plausible to analyze the system of international affairs in the Middle East via defensive or structural realism. Iran has attempted to maintain its hegemony in the region by supporting Shi'ah muslims in the neighboring countries as well as in the world by using military and economic means. In this context, Iran's maritime strategy is to maintain its maritime hegemony on the Persian Gulf via countering threats and cooperating with friendly navies by using the Islamic Republic of Iran Navy(IRIN) and the Islamic Revolutionary Guard Corps Navy(IRGCN). IRIN acts like other navies in the world: protecting national interest at sea, expending its operational areas to the outer seas, and enhancing cooperation with other navies. Meanwhile, IRGCN plays a role as an asymmetric force at sea. It is composed of small and fast asymmetric assets, which can ambush ships fast and furious. Considering the poor study for Iran's maritime strategy in Korea, analyzing the strategy is meaningful for the Republic of Korea Navy, which has operated the Cheonghae Unit for more than ten years since it has extended its operational area over the Strait of Hormuz. In order not to be drawn into the conflict in the Strait, research on the maritime strategy of Iran and other countries in the Middle East should be started.

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A Study on International Cooperation System for Fisheries Resources Conservation & Management in the Northeast Asia (동북아 수역의 수산자원 보존관리 협력체제에 관한 연구)

  • Shim, Ho-Jin
    • The Journal of Fisheries Business Administration
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    • v.40 no.2
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    • pp.71-103
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    • 2009
  • This study is designed to propose the ways of the multilateral cooperation system for effective management of fisheries resources in the various overlapping zones established by bilateral fisheries agreements between Korea, China and Japan in North East Asia as semi-enclosed sea. It is necessary to build multilateral fisheries cooperation between Korea, China and Japan in North East Asia because conservation & management of transboundary fish stocks could not be guaranted effectively by the management of fisheries resources in the area where piled up the current-fishing-pattern zone, as white zone and the various grey zone as middle zone, and the interim measures zone of bilateral fisheries agreements between Korea, China and Japan are piled up. Fisheries management in Korea, China and Japan by the bilateral fisheries agreements in North East Asia is faced with difficulties manage fisheries resources. International relationship on fisheries is maintained by bilateral fisheries agreements based on UNCLOS. However fisheries resources are over-exploited and the recovery of the fisheries resources is very slow because proper conservation and management of transboundary fish stocks which article 63(1) of UNCLOS defines have not prepared yet. Thus close cooperation among the coastal States for a proper conservation and management of transboundary fish stocks is necessary. Since the transboundary fish migrate within the EEZs of two or more coastal States, there is a need to manage the fish stocks in the region between Korea, China and Japan through a multi-lateral mechanism at ccircumference area of the current-fishing-pattern zone as white zone. Coastal States must guarantee sustainable maintenance of transboundary fish stocks through the regional cooperation for a proper conservation & management because one coastal State alone could not guarantee conservation and management of fish stocks. Thus there is a need to build multilateral fisheries cooperation between Korea, China and Japan in North East Asia. There are many successful instances including the Barents' sea for a proper conservation & management of transboundary fish stocks. The Barents' sea is one of the best research object to study the regional cooperation for a conservation & management of transboundary fish stocks in North East Asia. In conclusion, it is necessary to build a multilateral fisheries cooperation system between Korea, China and Japan in North East Asia to conserve and manage transboundary fish stocks effectively. It seems desirable that the range of the area to conserve and manage fish stocks should may be any partial area in the current-fishing-pattern zone and interim measures zone between Korea and China, Jeju middle zone between Korea and Japan, interim measures zone of bilateral fisheries agreements between China and Japan.

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A Review on the Failure Mechanism for Crystalline Silicon PV Module (결정계 PV 모듈에 대한 고장 메커니즘 검토)

  • Kim, Jeong-Yeon;Kim, Ju-Hee;Chan, Sung-Il;Lim, Dong-Gun;Kim, Yang-Seob
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.27 no.6
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    • pp.343-349
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    • 2014
  • It is summarized that potential causes of performance degradations and failure mechanisms of crystalline silicon photovoltaic (PV) modules installed in Middle East area. In addition, we also reviewed current PV module qualification test (IEC 61215) and the methods for detection of wear-out fault. The failure of PV modules in the extreme environmental conditions such as deserts is mainly due to high temperature, humidity, and dust storms. In particular, cementation phenomenon caused by combination of sand and moisture leads to rapid degradation in the performance of PV modules. In order to evaluate and guarantee the long term reliability of PV modules, specific qualification tests such as sand dust test, salt mist test and potential induce degradation test considering operating environment of PV module should be carried out.

A Study on Impacts of Camping Recreation on Vegetation and Soil - The Case of Hwaum-Temple District Campsite in Mt. Jiri National Park - (야영행위가 식생 및 토양에 미치는 영향에 고나한 연구-지리산국립공원 화엄사 지구 야영장을 대상으로)

  • 조현길;이경재;오구균
    • Journal of the Korean Institute of Landscape Architecture
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    • v.14 no.3
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    • pp.21-31
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    • 1987
  • The overuse in the outdoor recreation lands has been deteriorating the natural resources and landscapes. So this study was executed to measure the users'impacts on vegetation and soil at Hwaum Temple District Campsite in the Mt. Jiri National Park, the southern part of Korea. Five sites were sampled in the study area according to the extent of impact observed. Then the users'densities and impacts on vegetation and soil were measured at each site. According to the result of this study, the numbers of species and individuals and the coverage of lower-layer vegetation showed outstanding changes by only light use. The numbers of species and individuals of middle-layer vegetation, species diversity indices, change rate in species composition of lower and middle-layer vegetation, damage rate of forces, contents of clay, soil moisture and organic matters, exchangeable base ions, soil hardness, organic matter depth and bare area of the campsite showed conspicuous changes from the site 4(19.6men / 1,000㎡). Especially, the self-repair of vegetation was impossible as the result of analysis of soil hardness and the formation of natural vegetation was expected to be difficult as the result of vegetation sturcture analysis over the users'average density of 19.6men /1,000㎡. The campsite management of this area shall be proposed as follows to prevent serious deterioration of natrual environment. A limitation of the present use and a conservation on soil and vegetation should be required at the site 4 and 5. Specially, prevention of camping recreation and artificial rehabilitation are necessary at the site 5(24. 3 men/1000㎡)

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A Research on the Reproductive Properties of Great Tits in the Urban Forests (도시녹지에서 박새의 번식특성에 관한 연구)

  • Jeong, Hyu-Jin;Cho, Eun-A;Ko, Hyeon-Seo;Jang, Gab-Sue
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.15 no.5
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    • pp.155-163
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    • 2012
  • This study was carried out to monitor reproductive responses of great tits in 17 urban forests in Daegu metropolitan city. The reproductive perspectives of great tits were surveyed by using 106 artificial bird nests, of which five or seven nests were set up in every urban forest. A ratio of artificial nests used by great tits for their reproduction was 27.4%. It was showing that forests, where the reproductive response was higher, was located at the edge of the city, or was known as having a good vegetation structure in the urban area. The laying date of a great tit was a little earlier in forests in the middle of the city. It might be dependent on the density of artificial land uses including a residential area and an industrial complex, which are able to increase an urban micro-temperature. Otherwise, natural forests or forest patches nearby natural forests located at the edge of the city were showing that the laying date of great tits was relatively later than the oneee in the forest in the middle of the city. There was a big difference of reproduction perspectives of great tit between the 1st and 2nd reproduction. In the 1st reproduction, a clutch size was larger, while an egg volume was so low. Otherwise, the clutch size was shown so smaller in the 2nd reproduction than in the 1st reproduction, while the egg volume was larger in the 2nd reproduction. It might be due to the survival strategy of a great tit to prepare the winter season for a juvenile. Many variables, regarding to the problem of climate changes, have been linked to the environment of urban area and the bird habitats. Finally, Monitoring a bird reproduction is a valuable work for managing an urban forest as well as for conserving a natural forest.