• Title/Summary/Keyword: local climate

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An Analysis of Regional Imbalance and Map Usage in Korean Geography Test as a Part of the College Scholastic Ability Test (수능 한국지리 문항에서의 지도활용과 출제 지역의 공간 분포 현황 분석)

  • Bae, Sunhak
    • Journal of the Korean Geographical Society
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    • v.50 no.1
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    • pp.91-103
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    • 2015
  • The purpose of this study is to investigate if there is any regional distribution difference in the frequency of geographical location's name mentioned on the SAT Korean geography test. The reviewed items were used for geography subject test in Korean SAT exam in between 2005 and 2015. Researchers analyzed how often a location had been mentioned in the form of maps, captions, and graphs in the national college entrance exam for 11 years. The result indicated that 42% out of the 220 items were using map and about 33% of them represented a specific region. Especially, items related with climate, industries, and local area section contained a specific area information more frequently than others. Moreover, there were 76 cities mentioned in geography subject test on Korean SAT exam during 11 years and 25 places among them were referred to more than three times. The most frequently appeared city was Seoul followed by Incheon, Daegu, Busan, Gangneung, and Jeju and this result shows that there were some regional bias in geography test on the SAT Korean exam.

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Analysis of the Long-term Trend of PM10 Using KZ Filter in Busan, Korea (KZ 필터를 이용한 부산지역 PM10의 장기 추세 분석)

  • Do, Woo-gon;Jung, Woo-Sik
    • Journal of Environmental Science International
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    • v.26 no.2
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    • pp.221-230
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    • 2017
  • To determine the effect of air pollution reduction policies, the long-term trend of air pollutants should be analyzed. Kolmogorov-Zurbenko (KZ) filter is a low-pass filter, produced through repeated iterations of a moving average to separate each variable into its temporal components. The moving average for a KZ(m, p) filter is calculated by a filter with window length m and p iterations. The output of the first pass subsequently becomes the input for the next pass. Adjusting the window length and the number of iterations makes it possible to control the filtering of different scales of motion. To break down the daily mean $PM_{10}$ into individual time components, we assume that the original time series comprises of a long-term trend, seasonal variation, and a short-term component. The short-term component is attributable to weather and short-term fluctuations in precursor emissions, while the seasonal component is a result of changes in the solar angle. The long-term trend results from changes in overall emissions, pollutant transport, climate, policy and/or economics. The long-term trend of the daily mean $PM_{10}$ decreased sharply from $59.6ug/m^3$ in 2002 to $44.6ug/m^3$ in 2015. This suggests that there was a long-term downward trend since 2005. The difference between the unadjusted and meteorologically adjusted long-term $PM_{10}$ is small. Therefore, we can conclude that $PM_{10}$ is unaffected by the meteorological variables (total insolation, daily mean temperature, daily mean relative humidity, daily mean wind speed, and daily mean local atmospheric pressure) in Busan.

A Study on the costume of the Miao Tribe in China-Focusing on style and 상서 Style on and 검동형 style in Fermale Costume (중국 묘족 복식 연구-상서형과의 검동형 여자 복식을 중심으로-)

  • 김희섭;임영자
    • Journal of the Korean Society of Costume
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    • v.36
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    • pp.77-95
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    • 1998
  • The culture of a country is formed by the sense of value of a nation being a creator as well as on operator of the culture. So, the Chinese culture and fruthermore, the sense of value the Chinese people can be understood through the study of the costume of China. Above all, the culture of China, including the costume, have been formed through the his-tory of exchange between the central Chinese people and its surrounding minority races, and it should not be overlooked that its own culture of each race is existing with each other in the great Chinese culture sphere. In the paper, the concept of costume as relections of a culture is confirmed through the examination of the characteristics of the costume of the Miao tribe with such history and culture as a background and on effort is made to take those as resources modern fashion designs while inferring from them the characteristics of costume with universal and original values sthat can be sublimated into the modernistic beauty. The results of the study are as follows. First, the basic composition consists of a simple jacket made in a way of straight-cut-ting and a close pleated skirt and it tended to put emphasis on diversified and splendid decorations compared with the simple basis composition. Second, the costume of the Miao tribe are characteristic of hair done in a knot with head-dress around head. Third, the kinds of dress are multifarious by race and region due to a long period of mobile and disperse life. In the course of studying the universal value of the Miao tribe is confirmed which is by no means inferior to the standard of the medernistic beauty which keeping its originality. The study is made to be helpful for activating the design going with the trend that the basic harmony between the nature and man, that is a climate and the local cul-ture hearing formed a splendid culture in the past, are being found again.

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The study on substructure design and analysis for 5MW offshore wind turbine (5MW급 해상풍력 하부구조물 설계 및 해석에 관한 연구)

  • Sun, Min-Young;Lee, Sung-Bum;Lee, Ki-Yeol;Moon, Byung-Young
    • Journal of Advanced Marine Engineering and Technology
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    • v.38 no.9
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    • pp.1075-1080
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    • 2014
  • This study aims at dedicating to relevant technology fields by suggesting design methods of structures and estimating their safety in relation to substructure for offshore wind power requiring high safety to various environment conditions. Especially, with respect to 5MW Offshore Wind Power System, this study will provide information about major wind directions and duration in combination with the developing wave climate at the test field. Therefore, connections between wind fields and approaching wave trains will be estimated and their intensity, direction and time shift will be pointed out. Furthermore, the local pressure distribution of breaking waves will be investigated by physical and numerical modeling. The currently applied structural and fatigue assessment of support structures for offshore wind energy converters is based on common design rules. Normally, constructions in structural engineering are treated as limited, single structures. This means that varying aspects of manufacturing are considered by high safety factors.

A Study on the Greenhouse Gas Intensity of Building Groups and Regional in Korea (국내 에너지다소비건물의 용도별.지역별 온실가스 배출원단위분석 연구)

  • Lee, Chung-Kook;Suh, Seung-Jik
    • Journal of the Korean Solar Energy Society
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    • v.32 no.3
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    • pp.162-169
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    • 2012
  • Our country set the mid-term reduction goal of greenhouse gases up to 2020 in accordance with Bali roadmap agreed in 2007 through the negotiation with UNFCCC in 2009 and specified the proper goal as by the Basic Act on Green Growth that went into effect at April, 2010. First of all the enlargement of green building construction has been suggested as a worldwide strategy to achieve the green house gas reduction. Building area is one of most important sectors for the countermeasure of climate change agreement and the achievement of national green house gas reduction goal and the need to reduce its green house gases has been increased accordingly. The objective of the study is to examine the status and characterization of mass energy consumption local governmental buildings' green house gas emissions depending on usage (hotel, school, apartment, hospital) through the green house gas emission source unit analysis. The result indicated that the energy source unit was proportional to green house gas source unit and hotel showed the highest green house gas emission source unit per open area of construction unit, followed by hospital, apartment, and then school. In case of apartment, green house gas emission source unit per open area of construction unit decreased as year went on. Meanwhile school building showed a striking increase in the annual energy source unit.

The Characteristics of Radiation, Temperature and Wind Direction around King Sejong Station, Antarctica (남극 세종 기지 주변의 복사, 기온 및 풍향의 특징)

  • Choi, Tae-Jin;Lee, Bang-Yong;Kim, Seong-Joong;Park, Yoo-Min;Yoon, Young-Jun
    • Journal of the Korean Geophysical Society
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    • v.9 no.4
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    • pp.397-408
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    • 2006
  • Due to the temporal and spatial variability of the warming at and near the Antarctic Peninsular, it is required to better understand local climate at the issued region. The purpose of the study are to characterize surface radiation, air temperature and wind direction and investigate their relations at the King Sejong Station near the Antarctic Peninsular during last three and half years. While the study site was a weak radiative energy sink (positive net radiation) with annual mean of 15-20 Wm-2, it played a role as a strong sink in summer (December to January) with mean of 85 Wm-2, a magnitude that was significantly larger than those at other surface covered with snow or ice in Antarctica. Monthly averaged air temperature ranged from -7.7-2.8oC and the variations of monthly averaged air temperature showed the distinct differences with year. Northwesterly, westerly and easterly were dominant and the variability of air temperature could be explained by the variability of the frequency of wind direction with cold easterly and warm northwesterly/northerly to some degree, which in turn influenced radiation budget through albedo in summer.

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Analysis of historical drought in East Asia with CLM and CLM-VIC (CLM 및 CLM-VIC를 이용한 동아시아 지역의 과거 가뭄 분석)

  • Um, Myoung-Jin;Kim, Jeongbin;Kim, Mun Mo;Kim, Yeonjoo
    • Ecology and Resilient Infrastructure
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    • v.5 no.3
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    • pp.134-144
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    • 2018
  • In this study, the historical drought in East Asia was analyzed with the Community Land Model (CLM) and CLM-Variable infiltration capacity (CLM-VIC). The observation dataset, Climate Research Unit (CRU), were also applied to check and estimate the historical drought for 1951 - 2010. The annual precipitation, temperature and evapotranspiration by CRU, CLM and CLM-VIC were investigated before estimating the meteorological drought index, which is the Standardized precipitation evapotranspiration index (SPEI). Three variables by observation and simulations have generally similar spatial pattern in East Asia even though there are some mere differences depending on the local area. These similar patterns are also founded in the results of SPEI by CRU, CLM and CLM-VIC. However, the similarity of SPEI becomes weaker as the drought severity goes severer from D1 to D4.

A Study on the User-driven Urban Park Development Plan Awareness Survey - Focusing on Lawns·Grass Area - (의식조사를 통한 이용자 중심의 도시공원 조성방안 연구 - 잔디·녹지공간을 중심으로 -)

  • Seo, Jung-Young;Sung, Hyun-Chan
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.2
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    • pp.61-72
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    • 2009
  • This study aims to analyze the current situation of and issues in the structure of urban neighborhood parks and park facility installation in cities in Gyeonggi-do. Then, based on its findings, plans to improve the space structure of the parks were examined and suggested to raise the city environment improvement function and green area base function of urban parks and fully satisfy users' needs for pleasant rest, recreation and cultural activities. The findings showed that, within parks, the area of grass where access was restricted reached about 24.4% in average. In other words, only 75.6% of total park area could be freely used by park visitors. As for an improvement plan, the grass area where access is limited may be converted into a gras area that can be freely used to raise the park use area, which currently stands only at 75.6%, to 100%. The result of cross analysis through Chi-Square Test regarding lawn use as well as regarding (dis)agreement with reduction of lawn, based on the investigation of cognition, showed a significant agreement of park users with reduction of green areas. Therefore it is considered that lawn space must be reduced according the result of the analysis, to set up plans for facility space that would meet the desires of users. The analysis of user behaviors revealed that many of them used square spaces and walks; therefore it is considered that re-structuring of space is necessary according to local characteristics. This study also made some policy suggestion. urban parks must be a base of city green areas to counter climate changes. When developing a park creation plan, a user demand survey must be conducted in advance. In addition. grass construction methods should be improved to tolerate foot pressure.

A Study on Nursing Students' Volunteer Experience in Visiting Ambulatory Bathing Service (간호대학생의 방문이동목욕 봉사경험 연구)

  • Hwang, Seung-Sook
    • Research in Community and Public Health Nursing
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    • v.15 no.2
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    • pp.308-322
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    • 2004
  • Purpose: 'The purpose of the present study was to understand students' experiences from their standpoint, to identify relevant variables and to examine into their relations by analyzing and describing what phenomenon 'nursing students' visiting ambulatory bathing service' is, what are the reasons for the phenomenon, and what interactions are in the phenomenon. Method: The subjects were thirteen students. Data were collected through in-depth interviews and analyzed by Strauss and Corbin's analysis method. Result: With regard to ambulatory bathing service, participants responded 'lack of education', 'inexperienced personal relations' and 'disappointment with recipients families'. They recognized 'burden' and 'compassion'. The intensity of generated 'burden' and 'compassion' was determined by volunteering persons, the degree of health care service, recipients' response and interaction of climate. When 'burden' and 'compassion' were generated, participants selected their own coping strategies. Strategies in the situation of 'burden' and 'compassion' were significantly influenced by 'burden' and 'compassion' and structural situation - 'mutual relation structure,' 'volunteers' capability,' 'the degree of volunteering guidance,' 'community participation,' 'recipients' environment,' 'information sharing,' 'special vehicle equipment' and 'economical burden.' Strategies include' service training,' 'receiving volunteering training,' 'preliminary service preparation,' 'volunteering.' 'connection to local medical center,' 'intention,' 'information sharing,' 'passive response to recipients' appreciation' and 'the understanding of publicity'. The results of selected 'burden' and 'compassion' are described with 'worthiness' and 'cohesion' as follows. Conclusion: This study is significantly meaningful in that it examined bathing service welfare in its initial stage. There are not much outcome from previous studies. However. it is meaningful that this study intended to develop theories on the nature of experiences and the relations among concepts derived from the visiting ambulatory bathing service process of nursing students. Professors who taught social volunteering in universities understood the experience of nursing students who did the visiting ambulatory bathing service. Consequently, professors will provide an effective instruction to enable these students to carry out visiting ambulatory bathing services efficiently in order to meet demands when they conduct the services. For the volunteering service activity in major-related fields among college students' social volunteering activities, they recognized the necessity of systematic education and preparation.

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A Study on Assimilation and Transplantation of Public Housing at the Tiong Bahru Estate in Singapore from the 1930s to the 1950s (1930년대에서 1950년대까지 싱가포르 티옹 바루 단지에서 공공주택의 동화와 이식에 관한 연구)

  • Woo, Don-Son;Tak, Chung Seok
    • Journal of architectural history
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    • v.23 no.6
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    • pp.27-37
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    • 2014
  • Early 20th century Singapore was faced with the problem of overcrowding. The attendant problems of a rapid increase in population density, namely the lack of proper housing and sanitation, resulted in the issue of an appropriate residential environment emerging as an important task in urban planning. It was necessary to construct housing estates in order to solve this issue. At that time, the British colonial government attempted to transplant modern technology into the construction process of a residential complex system. However, Singapore's climate and traditional lifestyle made it impossible to apply the British modern system in a straightforward manner, and in the process, a number of transformations emerged. With a specific focus on the Tiong Bahru estate, one of Singapore's representative public housing projects, from the 1930s through the 1950s, this study intends to look at the way in which such residential estates were assimilated into local surroundings, and the effect of the transplantation of British concepts of modern housing theory. Therefore, the study is divided into an examination of the estate both before and after the turning point of World War II. This study confirms that the difference between the pre-war and post-war planning strategies for the Tiong Bahru estate were made according to the concept of 'open space.'