• Journal of the Korean Society of Costume
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• v.64 no.1
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• pp.106-122
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• 2014

This study is based on the official Chinese history of the ancient Korean(中國正史朝鮮傳) clothing and ornaments, and also tries to discover, study, and adjust the system of the ancient Korean clothing and ornaments. Ancient Korea has very poor official records of its clothing and ornaments. Therefore, this study had no choice but to rely on the official Chinese history to cover for the lack of resources. The official Chinese history documents are not only important for studying ancient Korean history, but also important for studying about the ancient Korean clothing and ornaments. This research selected historical documents about the ancient Korean clothing and ornaments from fifteen different Chinese dynasties' official documents, and then systematically classified the documents in order to compare them. All these processes confirmed the following subjects. In regards to the Kwan(冠: general hat), the hat types included Check, Byun(弁), Jeol-poong(折風), Jowoo-Kwan(鳥羽冠), So-gol(蘇骨), and Na-kwan(羅冠). These Kwan(冠) were influenced from Chinese clothing and ornaments. Gold and silver decorations on the Kwan(冠) were influenced from the Scythai culture. The feather decorations on the hat were residual of the bird worshiping culture or the hunting lifestyle. These things show that the ancient Korean clothing and ornaments originated the clothing and ornaments from the North. But the use of Jo-woo(bird feather) was common around the globe in many ways during the ancient times, regardless of area and period. The official Chinese history describes men's hair style as Choo-gyul (椎結) or sometimes pronounced, Choo-gyul(椎結). These seem to describe the topknot. Women had various types of hair styles such as Yu-byun-bal-su-hu (wear women's hair in a braid). The official Chinese history show that the ancient Korean clothing and ornaments originated the clothing and ornaments from the north. The ancient Korean clothing and ornaments influenced and were influenced by its neighboring countries.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.38 no.1
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• pp.85-97
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• 1993

Grouping of the Korean traditional rice processed foods and their historical background in development were surveyed, principally being concentrated on the current topics reported on the rice-processed foods such as rice cakes and rice cookies. Rice-processed foods could be classified into seven groups according to the literature reported so far: rice gruels, boiled rices, rice cakes, alcoholic liquors, non-alcoholic beverages and seasonings. Among them, rice gruels and boiled rices were further divided into seven to eight groups based on their characteristics together with added materials. Eighty one names of rice cakes were reported in the literature, however it might be condensed to five groups according to their processing methods. Ninety different alcoholic liquors were found and arranged according to the cited period in the literature. Five kinds of rice cookies and nine kinds of non-alcoholic beverages were found in the literature. These are maintained until today with almost identical methods of preparation as described in the old literature. The scientific research results on the Korean traditional rice cakes and cookies published in the literatures were reviewed. A total of forty one research papers were collected: twenty seven papers on rice cakes and fourteen papers on rice cookies. Most of the researches were concerned to the processing conditions. The author felt deeply some too short of researches in the physicochemical changes during processing, the maintenance of the products quality and the industrialization of the traditional processing methods in rice foods.

• Journal of Korea Water Resources Association
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• v.45 no.10
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• pp.983-995
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• 2012

In this study, it was intended to analyze the spatio-temporal distribution of historical drought events occurred in Korea by way of drought frequency analysis using SPI (Standardized Precipitation Index), and Drought spell was executed to estimate drought frequency as per drought severity and regions. Also, SDF (severity-duration-frequency) curves were prepared per each weather stations to estimate spatial distribution characteristics for the severe drought areas of Korea, and Potential Drought Hazard Map was prepared based on the derived SDF curves. Drought frequency analysis per drought stage revealed that severe drought as well as extreme drought frequency were prominently high at Geum River, Nakdong River, and Seomjin River basin as can be seen from SDF curves, and drought severity was found as severer per each drought return period in the data located at Geum River, Nakdong River, and Seomjin River basins as compared with that of Seoul weather station at Han River basin. In the Potential Drought Hazard Map, it showed that Geum River, Seomjin River, and Yeongsan River basins were drought vulnerable areas as compared to upper streams of Nakdong River basin and Han River basin, and showed similar result in drought frequency per drought stage. Drought was occurred frequently during spring seasons with tendency of frequent short drought spell as indicated in Potential Drought Hazard Map of different season.

• Journal of Korea Water Resources Association
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• v.52 no.12
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• pp.985-999
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• 2019

Over the last decade, droughts have become more severe and frequent in many regions, and several studies have been conducted to explore the recent drought. Copula-based bivariate drought frequency analysis has been widely used to evaluate drought risk in the context of point frequency analysis. However, the relatively significant uncertainties in the parameters are problematic when available data are limited. For this reason, the primary purpose of this study is to develop a regional drought frequency model based on the Copula function. All parameters, including marginal and copula functions in the regional frequency model, were estimated simultaneously. Here, we present a case study of recent drought 2013-2015 over the Han-River watershed where severe drought risk is consistently found to increase. The proposed model provided a reliable way to significantly reduce the uncertainty of parameters with a Bayesian modeling framework. The uncertainty of the joint return period in the regional frequency analysis is nearly three times lower than that of the point frequency analysis. Accordingly, DIC values in the regional frequency analysis model are significantly decreased by 15. The results confirm that the proposed model is not only reliably representing characteristics of historical droughts and dependencies between drought variables, but also providing the efficacy of understanding regional drought characteristics.

• Geophysics and Geophysical Exploration
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• v.13 no.3
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• pp.187-197
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• 2010

The paleoseismological study in Korea has begun along the Yangsan fault zone (YFZ) and Ulsan fault zone (UFZ) since 1994. Some evidences related to late Quaternary movement are found at only some part of the YFZ, such as Pyonghae, Yuge, and Eonyang-Tongdosa areas. However, it is found along the most of the UFZ except the northen and southern ends of the fault. The dominant time span of faulting events along the YFZ and UFZ are quite different, and 500 ka to 200 ka and 300 ka to recent time, respectively. The dominant faulting senses of the YFZ and UFZ are right-lateral strike slip and reverse, respectively. These senses correspond well with the focal mechanism of recent occurring earthquakes along these two fault zones. If we evaluate the intensity of the activity of the YFZ from the average slip rate, which is 0.1~0.04 m/ka, it is comparable with the faults of higher C class in Japan. The slip rate of UFZ, which is 0.2~0.06 m/ka, is comparable with the faults of lower B to higher C class. Based on the relationship between maximum displacement and magnitude, the maximum earthquake magnitude is evaluated to be 6.8 and 7.0 in the YFZ and UFZ, respectively. An intensive studies are needed to clarify the problems such as segmentation of faults, return period, and geological evidences related to historical earthquakes.

• Journal of the Korean association of regional geographers
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• v.16 no.5
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• pp.441-456
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• 2010

While the Dong Hae was originally named for the point of the compass, it became a proper noun containing knowledge on the long history. The Dong Hae has played host to a number of historic events and cultural meanings and is a geographical space in the nature. This study examined the geographical cognition of ancestors about the Dong Hae among the historic and cultural meanings of Dong Hae and a variety of figurations described in literature. Intellectuals of the Joseon period identified the global geography on a higher level an recognized the geography and topography of the land in the structure that they identified. In this aspect, Mt. Baekdu, one of two mountains which dominated the world, ruled the geography of Liaodong field, the Korean peninsula and Japnn. Historical geographers mentioned the Dong Hac whenever discussing Mt. Baekdu and Baekdudaegan (Great Range) from long ago. Baekdudaegan and the Dong Hae are the complete symbol of national territory with great size, depth, height, width, dignity and magnanimity. The cultural figurations of the Dong Hae were classified into four categories. In Korean literature, the Dong Hae strengthened the spirits of those who lived in the Korean peninsula. Second, the Dong Hae was the basis to see through and deliberate the reasons of life and the world. Third, the view of the Dong Hae from Baekdudaegan changed the cognition about the land. Finally, the Dong Hae was where the hard life of people in the fishing villages occurred and a variety of customs and trades were dynamically deployed.

• Journal of the Korean Society of Costume
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• v.16
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• pp.111-123
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• 1991

We suppose that Poback-cheok appeared with wearing clothes in the ancient times. At first, man used body as a scale, and it is gradually diversified with social development. It is clear that also in the time of Shilla-Dynasty, the United Shilla-Dynasty and the Goryeo-Dynasty, the system of degree existed in historical relation to that of China. But we don't know it's real length, because there is no recording until the beginning of the Yi-Dynasty. The first recording about Poback-cheok appeared in the time of the King Sejong. Hwangjong-Cheok which is a original vessel of the degree system appears in the 7th years of the King Sejong. In the 12th years of the King Sejong, Ju-cheok, Youngjo-cheok and Joyegi-cheok appeared. In the 13th years of the King Sejong, Poback-cheok appeared as a new changed one. At that time, the length of Poback-cheok is recorded as 44.75cm in chapter of Oye and Jonsoo Pobaek-cheok is recorded as 46.73cm in Jeonjesangjeongso's picture, and it is recorded as 46.80cm in the Kyunggugdaijeon. The scale system is put in good order in the time of King Sejong. But it is confused by the war of 1636 after King Seonjo period. In the 26 th year of King Youngjo, it is reappeared as one of the King Sejong, and it is fixed as 46.80cm. The length is used until the proclamation in the 6th years of the Kwangmu(1902), and then the length of Pobaek-cheok is changed as 48.48 cm, that is measured by a Gok-cheok. After that time, the scale system is very confused during the introduction of new civilization and the Korean-Japanes Unit. So it is used longer or shorter(that is, 49.24cm or 48.91cm). And the metric system is introduced by Japanes in 1926, and it reached the present time. According to use, the actual thing with is used in the end of the Yi-Dynasty is various from 30cm to 70cm. And according to material and craft-man, it can be devided into Hwa-gag scale, Najeon-blacklacquer-scale, bamboo-scale, wooden-scale. The way of expression of measure is always followed by the decimal system. The other half part, except the part of expression of graduation, is put on decorate with a pattern. Also we can see the idea of living on this point.

• Journal of Conservation Science
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• v.26 no.1
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• pp.95-107
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• 2010

Biochemical research was carried out on 4 human skeletal remains from historical lime-layered tombs assigned to the Joseon Dynasty in Oknam-ri, Seocheon. The preservation of femur was evaluated by stereoscopic microscopy and scanning electron microscopy. Most of specimens showed good histological preservation. The histological results proved to be a good potentiality for biochemical analysis using bio-molecules. The amelogenin gene and mitochondrial DNA (mtDNA) analyses revealed that three specimens perhaps have maternal consanguinity due to sharing with mtDNA haplogroup D4b1, and two specimens buried in the same tomb were a couple in Gatjaegol site. Carbon and nitrogen stable isotope analysis indicated that four deads diet were built around C3 plant as rice, barley, wheat and bean. In this study we characterized genetic and diet features from the social stratum who could make lime-layered tombs during period of the Joseon Dynasty. The results suggest that biochemical research using the human skeletal remains from the Joseon Dynasty has the great potential and reasonable value for archaeology, anthropology, and population genetics.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.4 no.1
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• pp.87-93
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• 2006

Inventories, and characteristics such as dimension, fuel rod array, weight, $^{235}U$ enrichment, and discharge burnup of spent nuclear fuel (SNF) generated from existing and planed nuclear power plants based on National 2nd Basic Plan for Electric Power Demand and Supply were investigated and projected to support geological disposal system design. The historical and projected inventory by the end 2057 is expected to be 20,500 and 14,800MTU for PWR and CANDU spent nuclear fuel, respectively. The quantity of SNF with initial $^{235}U$ enrichment of 4.5 wt.% and below was shown to be 96.5% in total. Average burnup of SNF revealed $\sim36$ GWD/MTU and $\sim40$ GWD/MTU for the period of 1994-1999 and 2000-2003, respectively. It is expected that the average burnup of SNF will be $\sim45$ GWD/MTU at the end of 2000's. From the comprehensive study, it was concluded that the imaginary SNF with $16\times16$ Korean Standard Fuel Assembly, cross section of $21.4cm\times21.4cm$, length of 453cm, mass of 672 kg, initial $^{235}U$ enrichment of 4.5 wt.%, discharge burnup of 55 GWD/MTU could cover almost all SNFs to be produced by 2057.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.674-681
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• 2011

'The Three Bonds And The Morals in Human Relations' was published in Joseon Dynasty period in 1434, relatively early days of comic history in the world. The gaps between comics frames have symbolic meaning as comics frames have in the area of symbols of comics. After comics frames appeared, it was likely that the advent of the gaps between frames had its own value in the aspect of comics history. Historical backgrounds of domestic comics would be built on firm base led by studying on the symbolic meaning of the gaps between comics frames. Two forms of the gaps between frames were shown in 'The Three Bonds And The Morals in Human Relations.' The first form is the gap between cloud frames. The second is the gap between cloud frame and background frame. Although a little difference is found in the shape and display, two forms of the gaps between frames in 'The Three Bonds And The Morals in Human Relations' have a similarity to modern comics. This study is to demonstrate valid background for the domestic history of comics by means of analyzing the shapes of the gap between comics frames in 'The Three Bonds And The Morals in Human Relations.' The objective of this study is to prove the meaning of the shapes of the gaps between comics frames 'The Three Bonds And The Morals in Human Relations', focusing the gaps between frames among symbols of comics.