• Korean Journal of Heritage: History & Science
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• v.46 no.4
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• pp.64-77
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• 2013

In China, archaeological research on Xiongnu started later than in foreign countries. In the late $19^{th}$ century, several Russian archaeologists started to study Xiongnu's archaeological culture. However, since the late $20^{th}$ century, archaeological research of the Xiongnu in China quickly gained speed. The Xiongnu culture has been reported in Mongolia, northern steppe of China and eastern part of Eurasian steppe. Mainly, Xiongnu sites, dated from the late 2nd century B.C. to the 1st century A.D., are reported on the west side of Baikal Lake(Zabaikal), Mongolia and the Inner Mongolia of China. Based on the historical records and the archaeological remains, the North Xiongnu culture is defined to be the remains of Zabaikal, and the South Xiongnu culture the archaeological remains of Northern China. The expelled North Xiongnu, while fleeing to the western part of Eurasia, left traces of their own archaeological remains in southern Kazakhstan, Xinjiang of China, Altai, and finally appeared in the Europe as Huns. In order to adapt to the environment of northern steppe of China, Xiongnu used a nomadic economic system, giving uniqueness to its iron works. The most characteristic iron works of the Xiongnu is the highly-sophisticated iron weapons. Compared with the iron works of agricultural economic society, Xiongnu iron-works are short of production tools and various vessels. The "Nomadic type" iron works found in Xiongnu area date back to the Warring Country period or slightly later. Further research need to be conducted on "Nomadic type" Xiongnu iron works.

• Proceedings of the Korean Society of Grassland Science Conference
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• 2004.07a
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• pp.1-13
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• 2004

몽골은 역사상 유목 목축업이 성장 발전한 이래 지금까지 5000년 이상 축산업을 주요 산업으로 삼고 있는 지역이다. 몽골인들에게 가축사육은 가장 익숙한 산업으로서 고대사회부터 모든 생활의 기반을 제공하였다. 이것은 가축이 몽골인들의 정치ㆍ사회ㆍ경제 정신의 기초가 되었다는 것을 의미한다. 그러므로 목축은 정치사ㆍ사회생활ㆍ문화발전에 이르기까지 몽골인들의 모든 삶과 밀접한 관계를 가지고 발전해 왔다.(중략)

• Feed Journal
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• v.3 no.6 s.22
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• pp.113-117
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• 2005

1884년 David Bruce에 의해 지중해 Malta 지역에서 처음 브루셀라병이 밝혀진 이후 사람 브루셀라증은 (Human brucellosis) 인수공통전염병중 세계적으로 가장 많이 발생하고 또한 경제적 피해가 심각한 인수공통전염병중 하나이다. 년간 50만명이상이 감염되는 것으로 WHO에서는 추정하고 있다. 사람 브루셀라증을 역학적으로 살펴보면 가축과 밀접한 관계가 있는(축주, 수의사, 인공수정사, 축산물취급자, 실험실종사자) 사람들에서 주로 발생하고 있지만, 예전부터 유목생활을 하며 멸균하지 않은 채 유제품을 많이 섭취하는 중동 지역에서 많이 발생하는 것으로 보아 생활문화 특히 식습관과도 밀접한 관계가 있음을 짐작할 수 있다.

• The Journal of the Korea Contents Association
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• v.13 no.7
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• pp.62-69
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• 2013

The purpose of this study is to examine how the masculinity types of the male lead appearing in melodrama genre TV series with 2005 as the borderline when we perceived the change of female types in TV drama series. To attain the goal, the paper analyzed the change of the male lead in 74 melodrama series that ranked high from 1992 till 2012 in terms of the ratings. As a result, from 2005, the types of masculinity of the male lead changed significantly. The followings deal with the details of the change: first, about the age of the male lead, those in the 30's or older increased. Second, unmarried men increased. Third, more of them saw men and women equally, and masculinity types setting no role division for men and women increased. Fourth, masculinity types of having more concern over their appearance increased. Fifth, masculinity types of relying on others when a problem occurred increased. Sixth, in relationship with others, passive masculinity types increased. There was no change in men's jobs, economic level, personality, or sexual consciousness. This study result shows that from 2005, stereotyped masculinity types shown in advanced research have disappeared a lot, and the current men image tends to show both male and female features.

• 한국정보교육학회:학술대회논문집
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• 2021.08a
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• pp.59-67
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• 2021

The development of AI technology has brought about a big change in our lives. As AI's influence grows from life to society to the economy, the importance of education on AI and data is also growing. In particular, the OECD Education Research Report and various domestic information and curriculum studies address data literacy and present it as an essential competency. Looking at domestic and international studies, one can see that the definition of data literacy differs in its specific content and scope from researchers to researchers. Thus, the definition of major research related to data literacy was analyzed from various angles and derived from various angles. In key studies, Word2vec natural language processing methods, along with word frequency analysis used to define data literacy, are used to analyze semantic similarities and nominate them based on content elements of curriculum research to derive the definition of 'understanding and using data to process information'. Based on the definition of data literacy derived from this study, we hope that the contents will be revised and supplemented, and more research will be conducted to provide a good foundation for educational research that develops students' future capabilities.

• Korean Journal of Environment and Ecology
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• v.16 no.2
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• pp.172-178
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• 2002

This study quantified $CO_2$, SO$_2$and NO$_2$uptake by vegetation for the Namsan Nature Park in Seoul, and explored values for the park to contribute to atmospheric purification. Broad-leaved forest accounted for about 54% of total forest area, and tree-age structure was dominated by a young, growing tree population. Tree density and basal area averaged 17.5 trees/100$m^2$ and 2,580$\textrm{cm}^2$/100$m^2$, respectively. Atmospheric purification per unit area by forest type and age class was greater in older age classes, associated with changes in basal area, and tended to be greater in broad-leaved or mixed forest than in coniferous forest for the same age classes. Mean $CO_2$storage per unit area for all the forest types and age classes was 293.8 t/ha and economic value of the $CO_2$storage was ￦ 147millions/ha. Annual uptake averaged 24.6t/ha/yr for $CO_2$, 17.1 kg/ha/yr for SO$_2$and 43.9 kg/ha/yr for NO$_2$, and economic value of the annual uptake was ￦ 13millions/ha/yr. Total forest area stored 72,100 t of $CO_2$, and annually sequestered 6,040 t/yr of $CO_2$, 4,200 kg/yr of SO$_2$and 10,770 kg/yr of NO$_2$. Economic value of atmospheric purification for the entire area amounted to approximately ￦ 36,100millions for the $CO_2$storage, and ￦ 3,100millions/yr for the annual $CO_2$, SO$_2$ and NO$_2$uptake. The park played an important role through annually offsetting $CO_2$emissions from fossil fuel consumption by 1,100 persons, SO$_2$emissions by 2,800 persons, and NO$_2$ emissions by 1,160 persons. The results from this study are expected to be useful not merely in informing the public of atmospheric purification values of urban nature parks, but in urging the necessity for replanting and management budgets.

• Korean Journal of Soil Science and Fertilizer
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• v.43 no.6
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• pp.858-863
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• 2010

The blueberry farming requires the soil condition of well-drainage, pH of 4.5 to 5.2, and high in organic matters for stable growth and development. Most of soil type of cultivated land in Korea, however, belongs to alkaline soils with low organic matter content and poor drainage. Therefore, the blueberry farmers use peat moss heavily to improve the soil condition, but the guideline on the effective and economic ratio of peat moss is not established yet. This study was performed to determine the cost effective peat moss ratio for amending soils, and to investigate the feasibility of using sawdust and coco peat as soil amendments. Peat moss, coco peat and sawdust are mixed with soil at the ratio of 0, 12.5, 50 and 100% (v/v). Among 3 organic materials with various mixture ratios, the pH of soil was the lowest in 100% peat moss and sawdust mixtures (pH 3.67 and pH 3.73, respectively), followed by pH 5.30 at 50% peat moss. The soil organic matter content are directly proportional to the mixture ratios in all three organic materials and the same trend was observed in the variation of content of exchangeable potassium in the coco peat treatments. On the contrary, the content of available phosphate, exchangeable calcium and magnesium decreased with increasing the ratio of organic materials. The nitrogen content in the leaves decreased as increasing the ratio of peat moss and coco peat in soil, but not of sawdust. The content of phosphate decreased but potassium increased as the ratio of sawdust and coco peat increased. There was no clear difference in the contents of magnesium and calcium among 3 organic materials. The plant height, stem diameter and dry weight of blueberry plants were the highest in 50 % peat moss, followed by 12.5% peat moss and 12.5% coco peat. The plants in 100% peat moss showed very poor growth. It can be concluded that peatmoss, when applied and managed appropriately, will be a good material for improving soil condition as well as securing desirable growth for blueberry. Upon coupling economic aspect, the optimum mixing ratio of peatmoss for blueberry farming is approximately 25-50%.

• Journal of International Area Studies (JIAS)
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• v.14 no.1
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• pp.77-106
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• 2010

As for the matter of guardianship-benefit network which has been at the heart of the discussion of power elites and clan politics in Kazakhstan, it has been often maintained that it is basically formed by the framework of the regional and descent connection net called Zhuz or at least it has been heavily under Zhuz's influence. But it is pointed out that the controversy of Zhuz suffers from a lot of limitations in explaining the surface of power elites in the recent process of political changes and the rearrangement of power relations. Consequently, this paper tried to take a closer look at the matter focusing on the social backgrounds of elites from Junior zhuz, who have been estimated to be relatively pushed back in terms of the advancement into the central power. As a result, it was found that the backgrounds of clan and tribe origin within Zhuz couldn't have any foundation to be seen as a decisive element through which they could grow into power elites. The phenomenon of Kazakhstani elites is a legacy of concrete historic situations. The important consideration points for analyzing the emergence of elites which could be applied to a nomadic and traditional society can hardly be an invariable framework for analyzing modern elites since independence. Since 2000, Kazakhstan has experienced economic changes including privatization due to the absolute strengthening of presidential influence which turned into a foundation for a new authoritarian system, the rearrangement of the inner circle of power, and their decisions. These changes in situations have had profound effects on the character of power elites. The phenomenon that clandestine connections have shown their appearances as they have gotten intertwined with various factors, in particular, in the economic field which has been heavily under Junior zhuz makes us convinced that the elite organization in Kazakhstan has always been the product of political and economic changes. In reality, the behaviors of elites were the outcome continuously reflecting environmental situations surrounding them, and those situations lie in a complicated and multiple-layered connection net. Therefore, it is believed that having interests in elites' social backgrounds and maintaining many pieces of information on them will be able to be a more useful approach to analyzing the elite society in the future in that interests in their social backgrounds become an informant of various network formation nets which reflect real situations.