• Title/Summary/Keyword: 대체 역사

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Tsunami simulation using practical dispersion-correction scheme (실용적인 분산보정기법을 이용한 지진해일 전파모의)

  • Park, Kang-Wook;Ha, Tae-Min;Cho, Yong-Sik
    • Proceedings of the Korea Water Resources Association Conference
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    • 2012.05a
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    • pp.59-62
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    • 2012
  • 지진해일은 한 번 발생하면 매우 큰 피해를 주는 자연재해 중 하나이다. 특히 최근에 일어나고 있는 지진해일에서 주목할 점은 해저지진의 규모가 커짐에 따라 그로인해 생긴 지진해일이 발생 인접지역에만 피해를 주는 것이 아니라 2010년 칠레지진과 2011년 동일본 대지진으로 생긴 지진해일과 같이 태평양을 가로질러 먼 거리에까지도 영향을 준다는 것이다. 하지만 이러한 지진해일에 대하여 피해 경감 및 재해대책을 수립할 때는 지진해일의 발생시간에 대한 정확한 예측이 불가능하기 때문에 연구하는데 여러 가지 어려움이 있으므로 역사 및 가상지진해일의 수치모의실험 결과를 이용한다. 그래서 이렇게 활용성이 높은 지진해일 수치모의실험 결과의 정확도 검증을 위하여 본 연구를 시작하게 되었다. 본 연구에서 사용한 수치기법으로는 분산항을 제외한 선형 천수방정식을 이용하였고, 이를 차분하는 과정에 나타나는 수치분산을 조정하여 선형 Boussinesq 방정식의 분산항을 대체할 수 있도록 하였다. 그리고 실제 동일본 대지진으로 발생한 지진해일을 전파모의하여 분산항을 고려한 수치모의실험 결과와 이 당시 태평양에서 수면변화양상을 기록한 DART buoy 관측값과의 비교를 통해 정확도를 확인해보았다.

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Evaluation for usefulness of Chukwookee Data in Rainfall Frequency Analysis (강우빈도해석에서의 측우기자료의 유용성 평가)

  • Kim, Kee-Wook;Yoo, Chul-Sang;Park, Min-Kyu;Kim, Hyeon-Jun
    • Journal of Korea Water Resources Association
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    • v.40 no.11
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    • pp.851-859
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    • 2007
  • In this study, the chukwookee data were evaluated by applying that for the historical rainfall frequency analysis. To derive a two parameter log-normal distribution by using historical data and modem data, censored data MLE and binomial censored data MLE were applied. As a result, we found that both average and standard deviation were all estimated smaller with chukwookee data then those with only modern data. This indicates that rather big events rarely happens during the period of chukwookee data then during the modern period. The frequency analysis results using the parameters estimated were also similar to those expected. The point to be noticed is that the rainfall quantiles estimated by both methods were similar. This result indicates that the historical document records like the annals of Chosun dynasty could be valuable and effective for the frequency analysis. This also means the extension of data available for frequency analysis.

On the Study of Design Guidelines and a Design Case to Enable the Replacement of LRT Stations by Stops (경전철 역사를 대체하는 정류장 도입을 위해 필요한 설계지침의 도출 및 적용 사례에 관한 연구)

  • Kim, Joo-Uk;Park, Kee-Jun;Lee, Ji-Eon;Lee, Jae-Chon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.5
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    • pp.3499-3510
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    • 2015
  • To cope with the increased demand on the intra-city transportation by urban rails, the introduction of the light rail transit (LRT) systems has been expedited in Korea due to the possible reduction of both the development and operation costs from adopting LRT systems. The LRT systems have so far been designed, constructed and operated based on the corresponding law and regulations. It has been conceived that fully complying with the existing guidelines may incur some extra costs on LRT. In addition, the present design of LRT stations seems to require unnecessarily long flow of passengers traffic, particularly for disabled people. In this paper, as an approach to solving the aforementioned issues, an introduction of 'LRT stops' has been studied where the stops are similar in concept to bus stops and are intended to replace the stations of a bigger scale in general. Specifically, necessary guidelines for design have been developed by modifying the existing ones to be fit with LRT stops. A design case was also presented to evaluate them. The effective use of the results reported here will provide an opportunity of cost reduction in connection with the construction and operation, and also let people benefit from convenient use of rails, thereby resulting in enhanced transportation welfare.

A Study on Kim Dong-Seong's Activities as Journalist in 1920-30's (일제하 언론이 김동성의 언론활동에 관한 연구)

  • Kim, Ug-Young
    • Korean journal of communication and information
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    • v.26
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    • pp.83-104
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    • 2004
  • Most studies of Korean Newspaper in historical view have focused on the news writing form and editorial practice. Those studies have much rely on the memories of ex-journalist or the impression of scholars. So this study aims to give the concrete figures of news writing forms and editing practices in 1920-30's by investigating Kim Dong-Seong's activities as a journalist. He was a first journalist who studies journalism. He studied journalism during his stay in the Ohio State University as an english department student. After he came back to Seoul, he worked at the Dong-A Il Bo as an one of the first publish members. His activities as a journalist have much important meanings because of his varied works and careers. He also wrote a practical affair book for reporters which was the first book in Korea. As a result of research about Kim Dong-Seong's activities in 1920-30's, the feature of edit practice in 1920's had much emphasis not only on the headline but on the relation between type and print, and at the same time the combination of news or the change of typography was one of methods which make the editing more variety. News materials were collected varied news sources and legworks by reporter. These results show us that such a news reporting practice in 1920-30's is similar co the contemporary.

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Weather and Climatic Environment of Seoul Area in South Korea during 1623~1800, Reconstructed from 'The Daily Records of Royal Secretariat of Joseon Dynasty(承政院日記)' (1623~1800년 서울지역의 기상기후 환경 -'승정원일기'를 토대로-)

  • LEE, Joon Ho
    • Journal of the Korean association of regional geographers
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    • v.22 no.4
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    • pp.856-874
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    • 2016
  • This study aims to figure out the weather and climate environment of Seoul area in S. Korea during 1623~1800, which has not been studied so far, by using daily records of weather conditions and meteorological phenomena in the Daily Records of Royal Secretariat of Joseon Dynasty(承政院日記) together with records of abnormal weather conditions and natural disasters in the Annals of the Joseon Dynasty(朝鮮王朝實錄). During 1500~1760 as a period of the Little Ice Age it was generally cold and dry, particularly cool summers of Seoul area. Changes in weather conditions and meteorological phenomena and climate changes appeared prominently at around 1650, 1710, 1770. The annual numbers of rain days and of snow days began to change largely in the 1640s. The rain(and snow) days reduced significantly in the 1710s~1650s, but increased sharply in the 1710s and later. The rain days in summer rapidly increased after the late 1710s, while the snow days greatly reduced after the mid 1770s. The cloudy days around the 1710s greatly reduced in summer, while slightly increased in winter. The hail days increased significantly in the late 1720s and lasted until the 1760s. The fog days began to reduce after 1770 to the fewer days than the climatic normals of 1981~2010. These times are overall consistent with findings of historical climatological cross-checking data and geophysical biological proxy data, accompanied by a trend of relatively enhanced colder and drier of Seoul area.

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A Comparative Analysis of Cataloging Records Related to Korea in the National Libraries of the Major Developing Countries: Focused on 10 Asian and African Countries (주요 개발도상국의 국가도서관에 있어 한국관련 목록레코드 비교 분석 - 아시아 및 아프리카지역 10개국을 중심으로 -)

  • Kim, Jeong-Hyen
    • Journal of the Korean Society for Library and Information Science
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    • v.52 no.1
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    • pp.65-86
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    • 2018
  • This study was conducted to analyze the characteristics of records related to Korea shown in the cataloging records of national libraries of the main 10 developing countries in Asia and Africa. The results are as follows. To begin with, Korea-related records in most national libraries are very poor and under 0.1% of the library. Except for National Library of Viet Nam, the figure is under 3,000 volumes and generally 2 times less than Japan related records. Second, except for National Library of Iran and Viet Nam most national libraries romanize Korean materials, there are not marked with the original Korean language and unfeasible Hangeul search. Third, on investigation of the subject distribution in sub criteria of Korea-related records, subject related to history and economy is largely shown in the highest rate. Fifth, among the Korea-related subject heading, Taekwondo is marked with distinction from Karate in most libraries except for 7 national libraries. Dokdo is marked with the geographical name of 'Korea' in 7 national libraries and East Sea (Donghae) already is marked with 'Japan, Sea of' in 7 national libraries. Amnokgang, Dumangang, and Baekdusan-related records did not search at all in most national libraries.

The Myth of Huang-ti(the Yellow Emperor) and the Construction of Chinese Nationhood in Late Qing(淸) ("나의 피 헌원(軒轅)에 바치리라" - 황제신화(黃帝神話)와 청말(淸末) '네이션(민족)' 구조의 확립 -)

  • Shen, Sung-chaio;Jo, U-Yeon
    • Journal of Korean Historical Folklife
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    • no.27
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    • pp.267-361
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    • 2008
  • This article traces how the modern Chinese "nation" was constructed as an "imagined community" around Huang-ti (the Yellow Emperor) in late Qing. Huang-ti was a legendary figure in ancient China and the imperial courts monopolized the worship of him. Many late Qing intellectuals appropriated this symbolic figure and, through a set of discursive strategies of "framing, voice and narrative structure," transformed him into a privileged symbol for modern Chinese national identity. What Huang-ti could offer was, however, no more than a "public face" for the imagined new national community, or in other words, a formal structure without substantial contents. No consensus appeared on whom the Chinese nation should include and where the Chinese nation should draw its boundaries. The anti-Manchu revolutionaries emphasized the primordial attachment of blood and considered modern China an exclusive community of Huang-ti's descent. The constitutional reformers sought to stretch the boundaries to include the ethnic groups other than the Han. Some minority intellectuals, particularly the Manchu ones, re-constructed the historic memory of their ethnic origin around Huang-ti. The quarrels among intellectuals of different political persuasion testify how Huang-ti as the most powerful cultural symbol became a site for contests and negotiations in the late Qing process of national construction.

A Study on the development of the pattern and the jewelry design utilizing the Gaya relics (가야 유물을 응용한 패턴전개와 주얼리 디자인 개발에 관한 연구)

  • Byun, Sung Tae
    • The Journal of the Convergence on Culture Technology
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    • v.3 no.4
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    • pp.67-76
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    • 2017
  • The Gaya Period is the period in which the nations of Gaya had existed in the Gimhae area. The term 'The Period of the Three Nations', which is widely used, is inappropriate because in ancient Korea, Gaya also existed besides Goguryeo, Baekje and Silla. This term should be corrected for the accurate reconstruction of the history of ancient Korea. Of course, the term 'The Gaya Period' cannot replace 'The Period of the Three Nations'. It just means the period in which the nations of Gaya existed. The Gaya Period refers to the period of about 600 years from about the first century, in which several nations of Gaya began to appear in the Gyeongsangnamdo area, through the falls of Daegarak of Kimhae in 532 A.D. and Daegaya of Goryeong in 562. When doing this, there should be no distortion of the original form of the relics. With the application of traditional techniques and excellent relics, it is believed that it helps to create the high added values by putting culture and tourism together with the development of various designs of cultural goods. To suggest possibility of jewelry designs by completing protype from idea scatch.

The Comparative Analysis of the Joint Labor-Management Consultation (노사협의제 성격의 국제비교)

  • Baek, Gwang-Gi
    • Korean Business Review
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    • v.12
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    • pp.189-207
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    • 1999
  • The recent keen global competition makes cooperative Labor-Management relations as one of the minimum requirements for the business firms in order to survive. Accordingly, this study focused upon the comparative analysis of the traits of some major countries' Labor-Management Joint Consultations for the purpose of explaining the core characteristics of them. The way how to develop and enhance the Labor-Management Joint Consultation in Korea was also suggested. As a result, this study shows that the social background of, the authority of, and the relationship with collective bargaining of the the Labor-Management Joint Consultation differed in great extent among the countries, and that these differences caused the various consultation patterns in each country. For example, the Labor-Management Joint Consultation was introduced and used voluntarily in the U.S.A. and Japan, while it was enforced by law in Korea, Germany, and France. Also, co-determination has been popular in Germany, France, and The U.S.A., but only the advising and consulting have been dominant in Korea and Japan. However, the rapid change of business environment and the increase in employees' need will make the co-determination as a desirable pattern even in Korea.

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A Study on the Development of the Pattern and the Scarf Design Utilizing the Gaya Relics (가야 유물을 응용한 패턴전개와 스카프 디자인 개발에 관한 연구)

  • Byun, Sung-Tae
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.103-113
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    • 2020
  • The Gaya Period is the period in which the nations of Gaya had existed in the Gimhae area. The term 'The Period of the Three Nations', which is widely used, is inappropriate because in ancient Korea, Gaya also existed besides Goguryeo, Baekje and Silla. This term should be corrected for the accurate reconstruction of the history of ancient Korea. Of course, the term 'The Gaya Period' cannot replace 'The Period of the Three Nations'. It just means the period in which the nations of Gaya existed. The Gaya Period refers to the period of about 600 years from about the first century, in which several nations of Gaya began to appear in the Gyeongsangnamdo area, through the falls of Daegarak of Kimhae in 532 A.D. and Daegaya of Goryeong in 562. When doing this, there should be no distortion of the original form of the relics. With the application of traditional techniques and excellent relics, it is believed that it helps to create the high added values by putting culture and tourism together with the development of various designs of cultural goods. To suggest possibility of scarf designs by completing protype from idea scatch.