• Title/Summary/Keyword: historical period

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Estimation of Future Design Flood Under Non-Stationarity for Wonpyeongcheon Watershed (비정상성을 고려한 원평천 유역의 미래 설계홍수량 산정)

  • Ryu, Jeong Hoon;Kang, Moon Seong;Park, Jihoon;Jun, Sang Min;Song, Jung Hun;Kim, Kyeung;Lee, Kyeong-Do
    • Journal of The Korean Society of Agricultural Engineers
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    • v.57 no.5
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    • pp.139-152
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    • 2015
  • Along with climate change, it is reported that the scale and frequency of extreme climate events show unstable tendency of increase. Thus, to comprehend the change characteristics of precipitation data, it is needed to consider non-stationary. The main objectives of this study were to estimate future design floods for Wonpyeongcheon watershed based on RCP (Representative Concentration Pathways) scenario. Wonpyeongcheon located in the Keum River watershed was selected as the study area. Historical precipitation data of the past 35 years (1976~2010) were collected from the Jeonju meteorological station. Future precipitation data based on RCP4.5 were also obtained for the period of 2011~2100. Systematic bias between observed and simulated data were corrected using the quantile mapping (QM) method. The parameters for the bias-correction were estimated by non-parametric method. A non-stationary frequency analysis was conducted with moving average method which derives change characteristics of generalized extreme value (GEV) distribution parameters. Design floods for different durations and frequencies were estimated using rational formula. As the result, the GEV parameters (location and scale) showed an upward tendency indicating the increase of quantity and fluctuation of an extreme precipitation in the future. The probable rainfall and design flood based on non-stationarity showed higher values than those of stationarity assumption by 1.2%~54.9% and 3.6%~54.9%, respectively, thus empathizing the necessity of non-stationary frequency analysis. The study findings are expected to be used as a basis to analyze the impacts of climate change and to reconsider the future design criteria of Wonpyeongcheon watershed.

Study on the Character of the Korean Traditional Qigong - The research of the origin of Qigong derived from the Korean concept of mystic hermits [xian] - (한국 기공의 정체성에 관한 연구 -신선가를 중심으로 본 기공의 기원에 관한 고찰-)

  • Lee Jeong Won;Kim Gyeong Cheol;Lee Yang Tae
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.1
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    • pp.1-7
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    • 2004
  • Oriental Medicine has long been centered around Qi[vital force], hence adopting Qigong and the art of regimen for training the body and relaxing the mind so as to prevent and heal illness. It has not been such a long time since Qigong method had been performed and spot-lighted out of numerous methods in Oriental Medicine. In China and Korea alone, diverse cases and papers are published, only revealing so many steps toward the establishment of diachronic description, theoretical foundation, and clinical practice. Historical approach is an essential part of recognizing a subject. When you step along its path and comprehend what it were, you can also grasp what it is and what it will be. Establishment of Qigong history is also vital to research Qigong in theory and practice. Generally, Qigong was transmitted from China to Korea, whereas the opposite explanation, that it originated from Korean Taoism, is supported by the minority based on certain texts concerning ancient history. In this paper, I support the theory of Korean originality based on the following grounds: First, the location of Qi and Van, the motherland of Chinese Taoism provides a strong evidence that Korean tradition had been absorbed by them and formed the tradition of mystic hermits(shenxian). Second, Guangchengzi, the originator of mystic hermits, is from Dongyi tribe according to Cheonghakjib. Third, the myth of Dangun has pure form of unique Korean folklore possessing the distinctive feature of mystic hermits tradition, uninfluenced by Chinese Taoism. Fourth, in ideographical aspect, the character 'xian(仙)', was invented as the Korean concept of mystic hermits[xian] was flowed in to China. Moreover, There is high probability that it was based on the concept of mystic hermits shown in the myth of Dangun in Its original formation. Fifth, considering the relation between wild ginseng and the tradition of mystic hermits, that tradition can be formed very naturally in Korean area. Sixth, the analogical similarity between archetype of Korean tradition and Taoistic trilogy, the foundational idea of the tradition, gives genealogical basis to its origin. Seventh, the tradition of mystic hermits and Shamanism, which constitues the prototype of Korean mind as an original religious tradition, are undiscernible in their root In Conclusion, We can reach the idea that the origin of Qigong derives from Korean tradition, not that of China. The tradition of mystic hermits was transformed to ego-centric seclusionism when it faced the anarchy of Warring states period in China, whereas it was developed into humane proriety and worship of Heaven base on the programme of 'universal fraternity in pursuit of interst for man'. In prospect, it is highly required to develop and interpret traditional discipline methods in Korea so as to utilize them for clinical Qigong in practice.

Comparative Study of the Discrimination of Uni-variate Analysis and Multi-variate Analysis for Small-Business Firm's Fail Prediction (중소기업 부실예측을 위한 단일변량분석과 다변량분석의 판별력 비교에 관한 연구)

  • Moon, Jong-Geon;Ha, Kyu- Soo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.8
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    • pp.4881-4894
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    • 2014
  • This study selected 83 manufacturing firms that had been delisted from the KOSDAQ market from 2009 to 2012 and the sample firms for the two-paired sampling method were compared with 83 normal firms running businesses with same items or in same industry. The 75 financial ratios for five years immediately before delisting were used for Mean Difference Analysis with those of normal firms. Fifteen variables assumed to be significant variables for five consecutive years out of the analysis were used to in the Dichotomous Classification Technique, Logistic Regression Analysis and Discriminant Analysis. As a result of those three analyses, the Logistic Regression Analysis model was found to show the greatest discrimination. This study is differentiated from previous studies as it assumed that the firm's failure proceeded slowly over long period of time and it tried to predict the firm's failure earlier using the five years' historical data immediately before failure, whereas previous studies predicted it using three years' data only. This study is also differentiated from the proceeding comparative studies by its statistically complex Multi-Variate Analysis and Dichotomous Classification Analysis, which general stakeholders can easily approach.

Origin and Modern Reconstruction of the Concept of Gong in East Asian Countries (동아시아 공(工) 개념의 기원과 근대적 재구성)

  • Han, Kyonghee
    • Journal of Engineering Education Research
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    • v.22 no.6
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    • pp.51-63
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    • 2019
  • This study aims to present concept of "gong" which was shared by traditional East Asian societies (Korea, China and Japan) and to identify how it has been developed through their respective process of modernization and industrialization. Despite the territorial proximity of the three countries, their industrial and technological development followed different patterns, and the notion of engineering from the Occident was also accepted and reconstructed with a certain difference in each country. Japan had developed its own concept of engineering as part of industrialization in Western style and in the context of establishment of an imperialist nation. What was important for Japan was how engineering could contribute to the national development of technology and industry, and to the development of Imperial Japan. For China, which attached importance to resistance to Western civilizations and to strengthening the competitiveness for and which needed to resolve domestic political conflicts, engineering constituted more than a simple issue on technological and industrial dimension; it was also associated with obtaining ethical and political legitimacy which would allow the nation to gain support from the working and peasant classes. Though belated, Korean attempted to build an independent modern state, yet experienced a considerable nuisance from the invasion of Japan and the protracted colonial period. Engineering of Korea had to take a long time before emerging from backwardness especially because of Japanese policies which tended to restrict technological development and avoid fostering qualified engineers in the colony. Therefore, engineering in Korea started to contribute to the nation's development and the improvement of technological competitiveness only after it was combined with modern higher education after liberation, under the name of engineering science (工學, gong-hak). This study argues that our recognition of what engineering was for and who engineers were in East Asia will allow us to evaluate current status of engineering education and provide us with significant insight which will be useful when we imagine the future society. Identity of engineering in Korea, China, and Japan has been developed along with historical contexts such as clash of civilizations, wars, recovery of sovereignty and obtaining of national competitiveness; now, what will be combined with engineering in the next generation? This question will lead and motivate engineering students to think and imagine about what future engineering should be and how they respond to it.

Study on Jinminso as an Indoor Relief Institution (구한말 민간 빈민구제시설 진민소[賑民所]에 관한 연구)

  • Yang, Okkyung
    • Korean Journal of Social Welfare
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    • v.66 no.4
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    • pp.257-280
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    • 2014
  • This is a study of Jinminso. The purpose of the study is to search and analyze the documents about Jinminso. The data is composed with the first hand historical documents both government documents and civil newspapers which are searched by internet. Based on the documents found, it is safe to say that Jinminso has existed and functioned as an indoor almshouse for the poor. It was established in June 25, 1898 by civil people with donated money in order to reduce the burden of Emperor and to share the love and care for their people with a brotherhood mind. The Jinminso resident were the poor, the sick, the orphans, widows, elderly living alone, and the disabled. They received food, clothes, and shelter. However, Emperor Gojong ordered to shut down Jinminso, and it was closed in Sept. 25, in 1898. The main reason was inappropriate collection of money for the agency operation from the merchants. When Jinminso was closed, all the inmates became homeless. The founders asked to reopen it, and it was accepted but this time was opened as a government agency in 1899. Jinminso imposes great meanings. One, Jinminso was not just an office but a direct service agency housing hundreds of poor people; two, poverty was understood as social problem not just a local district problem; three, rules and regulations were prepared to set up a system of modern age social welfare. The findings provide a clue how the government and society perceived poverty and the poor during the time of late 1800s to early 1900s. The existence of Jinminso will pose many new question.

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On the Design Characteristics of Ornaments in the Three Kingdom Period (Focused on Baekje's ornaments) (삼국시대 장신구에 나타난 조형적 특징에 관한연구 (백제장신구를 중심으로))

  • Sin, Mi-Young;Park, Seungchul
    • Journal of Digital Convergence
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    • v.10 no.11
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    • pp.603-612
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    • 2012
  • When it comes to a country's traditional ideas. that country's geographic setting and religious thought show the people's consciousness, and the characteristics of historic sites and relics show their cultural aspects. Our country has 5000-year cultural history. Especially, the Baekje cultural history created very remarkable relics in our history. With regard to Baekje's own patterns and workmanship, their ornaments were more focused on the beauty of soft and voluptuous curves than that of Goguryeo and Silla This study researched design characteristics of ornaments and symbolic aspects of the patterns by focusing on crowns, crowns' accessories, earrings, necklaces, chignon ornaments of the Baekje's ornaments, To put emphasis on Baekje's ornaments by comparing Baekje's ornaments with Goguryeo's and Silla's. This study collected data on Baekje's ornaments, and reviewed domestic references and specialty publications at the Buyeo National Museum, Gong-ju National Museum, home and abroad, and studied the images of Baekje's metal crafts and patterns through theses. Baekje had splendid and glorious artistic culture, but there are not many historical data and supportive relics left these days. Therefore, a lot of attention, researches and development on Baekje culture are needed. This study found that the ornaments of the Baekje era have not only ornament functions but also the people's creative mind. The culture contents in recent technological development and industrialization change people's recognition, and now they have interest in Baekje culture. Therefore, the purpose of this study is to widely popularize Baekje by studying the patterns of the Baekje era more and developing various and new designs.

Notion of descended reference about 『Soayakjeungjikgyeol(小兒藥證直訣)』 (『소아약증직결(小兒藥證直訣)』 전본(傳本)에 대한 소고(小考))

  • Baik, Yousang
    • The Journal of Korean Medical History
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    • v.17 no.1
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    • pp.105-118
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    • 2004
  • The four precious results are beard below after thorough study of Jeoneul(錢乙)'s descended piece and main citation reference from Song(宋) era. 1. Jeoneul(錢乙)'s historical period seems that he finished his life in the age of 82, from Cheonseong(天聖) 10years(Year 1032) to Jeonghwa(政和) 3years(Year 1113) in North Song(北宋) era. However, it also seems that his life terminated Seonhwa(宣和)元年in 1119. The title of "Soayakjeungjikgyeol(小兒藥證直訣)" was reflected in "Sagojeonseo(四庫全書)" as "Soayakjeungjikgyeol(小兒藥證直訣)", however according to various of previous descended references and citations indicate that "Soayakjeungjikgyeol(小兒藥證直訣)" is more appropriate than "Soayakjeungjikgyeol(小兒藥證直訣)". Furthermore, the name, Yeomhyochung(閻孝忠), who edited the reference "Soayakjeungjikgyeol(小兒藥證直訣)" was appeared as Yeomgyechung(閻孝忠) in many different old references. Thus, even though, Sagogoan(四庫館) and Juhakhae(周學海) looked as Yeomgyechung(閻孝忠), but it seems Yeomhyochung(閻孝忠) in "Songsa(宋史)" Yemunji(藝文志) is more authentic than others. 2. When first edition of "Soayakjeungjikgyeol(小兒藥證直訣)" was published, Yeomhyochung(閻孝忠)'s the first book of "Yeomssisoabangnon(閻氏小兒方論)" and the first chapter of Yugi's "Jeonjungyangjeon(錢仲陽傳)" were attached in one book. Not long after of the first edition, Donggeup(董汲)'s first book of "Soabanjinbigeupbangnon(小兒斑疹備急方論)" and Jeoneul(錢乙)'s additional attachment was added in prescription reference. Among these references which were published in Song era, the original copy which Jinsegeol(陳世傑) published in Chung era in Ganghi(康熙) 58years (Year 1719) was remained and the first edition that Yangsugyeong(楊守敬) collected in Japan was published in "(lbonbangseoji(日本訪書志)" called Seonhwabon(宣和本). 3. Ungjonglip(熊宗立)'s "LyujeungjuseokJeonssisoabanggyeol(類證注釋錢氏小兒方訣)", Seolgi(薛己)'s "Gyojeongjeonssisoayakjeungjikgyeol(校正錢氏小兒藥證直訣)" Muyeongjeon-Chuijinbon(武英殿聚珍本) were followed Yangsugyeong(楊守敬)'s called Seonhwabon(宣和本) theory, in addition Yubang(劉昉)'s "Yuyusinseo(幼幼新書)" and "Soayakjeungjikgyeol(小兒藥證直訣)" quoted from Chosun "Euibangyuchui(醫方類聚)" also followed Yangsugyeong(楊守敬)'s called Seonhwabon(宣和本) theory. On the other hand, Jinsegeol(陳世傑)'s Gisudangbon(起秀堂本) and reprinted Juhakhaebon(周學海本) belong to parts of Songbokganbon(宋復刊本). 4. In major references and citation materials descended from "Soayakjeungjikgyeol(小兒藥證直訣)", Yubang(劉昉)'s "Yuyusinseo(幼幼新書)" and "Soauisaengchongaminonbang(小兒衛生總微論方)" were cited in Song era and some related parts in "Yeongnakdaejeon(永樂大典)", "Soayakjeungjikgyeol(小兒藥證直訣)" related sections, Ungjonglip(熊宗立)'s reedited and annotated part of "Lyujeungjuseokjeonssisoabanggyeol(類證注釋錢氏小兒方訣)", Seolgi(薛己)'s proof reading and annotated "Gyojujeonssisoayakjeungjingyeol(校注錢氏小兒藥證直訣)", "Euibangyuchui(醫方類聚)"'s quotation. In Chung(淸)era, Jinsegeol(陳世傑)'s re-published reference, Gisudangbon(起秀堂本), which was simply printed in Song and proof read and republished Juhakhaebon(周學海本), Muyeongjeonchuijinbon(武英殿聚珍本) compiled from "Yeongnakdaejeon(永樂大典)", Yangsugyeong(楊守敬)'s "Jeonssisoayakjeungjikgyeol(錢氏小兒藥證直訣)" mentioned in "Ilbonbangseoji(日本訪書志)", Jangsui's annotation, "Soayakjeungjikgyeoljeonjeong(小兒藥證直訣箋正)" and Simgeumo(沈金鰲)'s "Yuguaseokmi(幼科釋謎)" which was applied Jeoneul(錢乙)'s theory and prescription.

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A Social Historical Study on Security System of Goryo Period (고려시대(高麗時代) 시위제도(侍衛制度)에 관한 사적고찰(史的考察))

  • Kim, Chang-Ho;Min, Jae-Ki
    • Korean Security Journal
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    • no.15
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    • pp.107-128
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    • 2008
  • It was started that Shiwe-goon was organized from Shilla-end to Goryeo foundation a country in powerful families existence merely royal household by stably plan means in the reign of Taejo. Generally Shiwe-goon was dutie king' personal danger of protection. Shiwe-goon was organized castle of guarding, stand by king and royal household side armed strength to going on a trip and general armed-organization was collapsed for Goryeo-end continued existence. Goryeo era of Shiwe-organization was divided central army and region army. Two-goon(Eungyang-goon, Yongho-goon) was undertaken king of Shiwe army and six-we(Chunwoo-we, Geumoh-we, Gammoon-we, Jeoawoo-we, Shinoh-we, Hongwe-we) was undertaked capital of guard and the border of defense duty. Central army of commanders was called Sangjanggoon, Daejanggoon. Sangjanggoon and Daejanggoon was discussed military officer of conference apparatus in Jungbang. Jungbang was got afterward Mooshinjungbeon happened military of statesman grasping political power with authority a main stay. Mooshinjungkwen era was appeared modernistic mean of privately guarding organization in Dobang and Naedobang. According as Shiwe-organization was charged military organization as a part of sovereign power and grasping strength of authority- maintenance for security and guarding duty. As a conclusion, national sovereign of guard was achieved not only personal life and body guard protection but also country of welfare protection in country-welfare dimension an inch of non-error. Also national sovereign of guard was considered guarding apparatus of allowance the largest duty and country-welfare direct connection with actual fact recognition in constancy effort.

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Review of Geography Books for Joseon Dynasty Urban Research - Focused on Donggukyeojiji, Yeojidoseo, Yeodobiji and Daedongjiji - (조선시대 도시연구를 위한 지리지(地理志)의 기초연구 - 『동국여지지(東國輿地志)』·『여지도서(輿地圖書)』·『여도비지(輿圖備志)』·『대동지지(大東地志)』를 중심으로 -)

  • Kang, Seo-Yeon;Yoon, In-Suk
    • Journal of architectural history
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    • v.21 no.5
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    • pp.33-46
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    • 2012
  • The purpose of this study lies on reinterpreting the geography books in Joseon dynasty as records of the cities and consequently suggesting directions for further urban research. Geography books of Joseon dynasty are valuable references to understand the national policy, and imply that the focus of the contents is on the system. Especially, military system is an important concept to understand city type in that period, relationships between cities, selection of location, etc. The results of review are as following: First, military system is not a permanent fixture and therefore reflects changes in urban policies along with the history. The system suggests valuable clues on urban development as it is state-run, and closely associated with national land development. Second, counties and prefectures under jurisdiction of district called Eupchi(邑治) had cities as important as or even more important than local government such as Yeong-a(營衙), Jinbo(鎭堡), Yeok(驛: administrative cities). Such special regions need to be studied as other type of cities in Joseon dynasty by defining their architectural characteristics and roles. Third, the relationship of cities such as Eupch, Yeong-a, and Jinbo, was reorganized according to the local military system. Eupchi, administrative city, along with Yeong-a and Jinbo evolved into a military city as it became systematically organized. The characteristics of Yeok needs to be reconsidered in the context of such new inter-city relationship. Fourth, considerations which should be reviewed in the geography based on this concept can be mainly classified into architecture and landscape. This will also lay the foundation, and suggest new directions for further research for Eupchi, Yeong-a, Jinbo, and Yeok. Fifth, description of the geography looks simple at first sight, but with thorough understating on the system, there are chances to interpret objective reasoning of position and landscape in the overall flow of region, area, etc. Bongsu(烽燧), signal-fire, can be an object of comparison with geographical features and position. Furthermore, advantageous position is a historical and geographical element showing the major context of the region.

LIFE AND ASTRONOMICAL ACTIVITY OF LEE DEOK-SEONG AS AN ASTRONOMER IN THE LATE OF JOSEON DYNASTY (조선후기 천문학자 이덕성의 생애와 천문활동)

  • AHN, YOUNG SOOK;MIHN, BYEONG-HEE;SEO, YOON KYEONG;LEE, KI-WON
    • Publications of The Korean Astronomical Society
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    • v.32 no.2
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    • pp.367-380
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    • 2017
  • The life and astronomical activity of Lee Deok-Seong (李德星, 1720-1794) was studied using various historical sources, including the astronomical almanac, Seungjeongwon-Ilgi (Daily records of Royal Secretariat of Joseon dynasty), and the Gwansang-Gam's logbooks during Joseon dynasty (A.D. 1392-1910). We present the results of the study including the following main findings. First, from the investigation of Lee's family tree, we find that a number of his relatives were also astronomers, notably Samryeok-Gwan (三曆官, the post of calendrical calculation). Second, we find that he took part in the compilation of an annual astronomical almanac over a period of at least 16 years. His major achievements in the astronomy of the Joseon dynasty were to establish a new method of calendar-making calculation and to bring astronomical materials to the Joseon court through a visit to China. The Joseon dynasty enforced the Shixianli (時憲曆, a Chinese calendar made by Adam Shall) in 1654 without fully understanding the calendar. So an astronomer and an envoy were dispatched to China in order to master the intricacies of the calendar and to learn as much of Western science as was available in that time and place. Lee Deok-Seong worked at the Gwansang-Gam (觀象監, Royal Astronomical Bureau) during the reigns of King Yeongjo (英祖) and Jeongjo (正祖). As best as we can ascertain in relation with the calculations in the Shixian calendar, Lee visited China four times. During his trips and interactions, he learned a new method for calendar-making calculations, and introduced many Western-Chinese astronomical books to Joseon academia. Lee greatly improved the accuracy of calendrical calculations, even while simplifying the calculation process. With these achievements, he finally was promoted to the title of Sungrok-Daebu (崇祿大夫), the third highest grade of royal official. In conclusion, history demonstrates that Lee Deok-Seong was one of the most outstanding astronomers in the late-Joseon dynasty.