• Journal for History of Mathematics
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• v.24 no.4
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• pp.61-86
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• 2011

In this article we introduce old and new references for 'Grundlagen der Geometrie' written by Hilbert and summarize its contents. We then compare the 1902 English translation of the first (German) edition and the 1971 English translation of the 10th (German) edition focusing on the changes of the contents, terminologies, expressions, etc. We then finally discuss about the implications of these changes in translating mathematics classics into modern Korean and in creating mathematics books in modern Korean.

• (The)Study of the Eastern Classic
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• no.73
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• pp.415-444
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• 2018

This study was designed to analyze the delivery patterns of early(1900-1945) letters from the beginning of the postal service in order to examine the process of establishing the modern postal system after the constitution of the Postal Service(1884). In Chapter 2, we examined the 'change of the way letters are delivered', Chapter 3 is about the 'change of expression' and Chapter 4 is about 'double-faced of the post'. In the examination of aspects of changing the way letters were delivered, the phase of postal delivery by personal delivery to postal delivery were divided into three phases: [the period of personal delivery delivery] > [the coexistence period of personal delivery and postal deliveryy] > [the period of postal delivery]. In particular, it was interesting to see that the same sender and receiver mixed up postal delivery and personal delivery by the case in the second period. In addition, the functional differences between the express, telegram and particular post were found in the examination fo contents of the letter. In the examination of aspects of changing in expression, a change of common expression in 'greeting, ending, and receiving expressions' were confirmed. Also, it was confirmed that 'woo-pyeon' was not used as the basic term, but instead replaced with various terms, and that 'woo' was used independently and productively. In the double-faced aspects of post, there were disadvantages of the postal delivery such as 'discontent of the lost' and 'security of confidentiality', despite the advantages of 'economic, rapid, and long-distance delivery'. Because the disadvantage of postal delivery could be supplemented by personal delivery, postal delivery and personal delivery could coexist for a considerable period of time.

• Industry Promotion Research
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• v.7 no.1
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• pp.25-34
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• 2022

The purpose of this paper was to confirm the source of Shipsong called Yookchen or Yooksheen used in Myeongleehak and the meaning of Shipsong in major classics. It is to investigate the concept of Shipsong used in modern Myeongri, and to study in-depth the concept of Shipsong in a more advanced form, not just in family relationships. In reality, the concept of Yookchen was defined and the term Yookchen was first used in Yeonhaejapyeong. Most of the contents of the major classics, such as Yeonhaejapyeong, Sammyeontonghwe, and Japyeonjinjeong, were limited to setting only family concepts. Then, in 1963, Sajoojeongsul was published, which explained both family relations and the action of Shipsong. In particular, it is noteworthy that the scientific reputation written by Ki-seung Kim did not only explain the concept of Shipsong but also opened a new chapter to confirm human psychology and aptitude. In this study, I tried to find out the concept and tendency of Shipsong described in Kim Ki-seung's Science Myeongri in the major classics and how the concept changed. I hope this study will be of some help to the study of Myeongleehak in the future in terms of understanding and utilization of Shipsong.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.400-412
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• 2022

The Accommodational missionary method adopted by the Jesuit missionaries who came to China in the late Ming and early Qing dynasty is called the Accommodation and Naturalization and is based on the Poetry. The terms they borrowed were 'Di(Emperor Above)' and 'Tian(The heaven)', the key terms of Confucianism. Although 'Di' was a new transcendent concept, its status was downgraded in the political upheaval, and 'Tian' was rather elevated. However, both of these concepts gradually transformed into philosophical concepts that directly affect real life. The two terms borrowed to express the priesthood could not contain the uniqueness of Christianity, and Christianity was interpreted as an extension line of Confucianism thinking, reduced to an adjunct of Confucianism, and was not indigenous to the depth of ideology. A rational philosophical inquiry could not have played a full role in guiding the Chinese into the true Christian 'faith' unless it is paired with the great teachings of revelation. It is necessary to analyze these results soberly to find problems and to try various studies to explore ways to open up new horizon for Christian missionary work.

• The Korean Journal of Financial Studies
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• v.12 no.1
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• pp.45-62
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• 2006

M. C. Jensen과 W. H. Meckling이 쓴 'The Nature of Man' 논문의 핵심은 역시 REMM(Resourceful Evaluative Maximizing Model)이다. REMM이라는 용어는 새롭지만 개념은 200년 이상의 연구와 경제학과 사회과학과 철학적 토론의 산물이라는 것이다. REMM에서의 핵심은 Resourceful이다. 어떤 이론이나 정책이건 어떤 가정과 한계가 있다는 의미로 사용할 수도 있다. 재무관리의 모태인 경제학에서 지금까지 사용된 모델은 고전 경제학시대부터 일관되어 왔던 추상적 의미의 이익(효용)극대화 모델이다. 재무관리는 그 목적이 궁극적으로 인간의 소비선호체계를(people's consumption preference) 극대화 하는 것이고, 한정된 자원(scare resources)을 시간에 따라 어떻게 배분하여 효용(utility)을 극대화하는 것을 중심과제로 삼고 있다. 효용의 극대화를 위한 자원배분은 생산자원을 어떻게 배합하여 가치생산을 극대화하느냐 하는 생산에의 배분문제와 생산된 재화 및 서비스를 사람들의 욕구충족을 최대로 하는 소비에의 배분문제로 나눠 생각해 볼 수 있다. 그런데 적어도 재무관리에서는 후자는 다루지 않고 가치생산의 문제만 다룬다. 이러한 가정하에서 재무관리의 목표와 이에 따르는 재무관리이론(가정)의 전개는 가치창조와 소비에의 배분을 통한 효용의 극대화를 다루는 경제학의 이론을 답습함으로 일부 혼선을 불러올 수 있다. 위험에 대한 재무담당자(투자자)의 태도를 재무관리의 입장이 아니라 경제현상 전체에 해당되는 입장에서 다루므로 각 각의 교재마다. 투자자의 부 또는 수익에 대한 효용과, 위험과 수익에 대한 무차별곡선이 달리 표현되고 있다. 재무관리 책에서는 재무관리의 가정하에서 투자자의 수익에 대한 효용, 그리고 수익과 위험에 대한 무차별곡선이 정립되어야 할 것이다.

• (The)Study of the Eastern Classic
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• no.36
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• pp.301-332
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• 2009

The 16 century Yulgok had lived have been evaluated as the golden age of Seonglihak(性理學) in Korea. However, on the contrary, excessively desperate was the real social and political situation which Yulgok had descirbed. Therefore, eventhhough the Seonglihak centered-reseach is meaningful, this research had the limitation in analyzing the politics in those times. In studying Yulgok's thought, the established researches had focused on philosophic theory centered-orientation. However escaping from that orientation, in this essay I try to restructure Yulgok's enlivened political experience that he had worldly seen, felt, heard and performed in 16th's real politics. While the established researches had absorbed in Kyeonghak(經學, the interpretaion of Confucian Cannon), I try to restore Kyeongse(經世, governing and managing the state) based on Yulgok's worldly political experience. The major concept on which I have focused is Pye(弊, the abnoxious custiom in political and official sphere). Yulgok's offical life had begun with the problematic of how to overcome Pye inherited by Kwongan(權奸, a politically villainous retainer). In the process, he had focused on the worldly performable issue, Minsaeng(民生, the livelihood of the people), not on the abstract and theoritical concept, Min(民, the people). He recognized the cause of desperate situation had resulted from Pyebeob(弊法, the obnoxious law, its system and its execution), and tried to reform Pyebeob in the various way. The next concern of Yulgok came to Pyejeong(弊政, the obnoxious politics, its system and its execution), which interrupted not to reform Pyebeob. According to Yulgok, Pyejeong resulted from the wrong fulfilment of official-scholar elite in government, and the distorted public opinion in governemt. This fact demonstrates two elements mentioned above had common root of the absence of communication of public opinion. Yulgok recognized the importance of Ui(議, the discussion) than of Ron(論, the dabate) and then reviving Ui, Yulgok had tried to arrange the foundation for the communication of public opinion in political sphere.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1995.04a
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• pp.240-245
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• 1995

제어이론의 역사적 발전사를 고찰해보면 1930년대부터 1960년대까지를 고전 제어(classical control) 시대로 분류되고 이때 주로 사용되었던 용어들은 주파수역(frequency domain)에서 사용된 개념인 극점(pole), 영점(zero), Nyquist, 근궤적(root-Locus) 선도(plot)등으로 대표된다. 그 다음단계인 현대 제어(modern control) 시대 (1960년대-1980년대)때는 새로운 개념들이 도입 되었는데 시간역(time domain)에서 사용되는 상태공간(state-space) 모델, 가제어성(controllability), 가관측성(observability), Kalman 필터, LQG 제어 등이다. 1980년대부터 현재까지를 강인제어(robust control) 시대로 분류하는데 이것의 특징들은 극점이나 영점 대신 상태공간 모델을 사용하여 주파수역에서 정의되는 개념들인 H$_{\infty}$ 합성법, .$\mu$ 해석법, LQG/LTR 및 QFT, Lyapunov 등으로 대표된다. 현대제어시대때는 제어기 K는 공칭 플랜트 모델 G$_{0}$를 기준으로 설계되었으나 실제로 공칭 플랜트 모델은 실제 플랜트와 항상 같을 수가 없었다. 따라서 실제 플랜트 G는 G=G$_{0}$ + .DELTA.G로 표현되며 여기서 .DELTA.G는 플랜트 불 확실성(plant uncertainty), 즉 실제 플랜트와 공칭 플랜트의 차이를 나타낸 다. 이 플랜트 불확실성은 제어기가 실제 응용되어 사용되었을 때 제대로 작동하지 않는 주요 이유중에 하나이다. 이와 같은 상황에서 안정도 강인성 (stability robustness) 및 성능 강인성(performance rosubtness)의 보장은 상 당히 중요한 문제로 대두되었으며 주어진 플랜트 불확실성하에서 이러한 강이성들이 보장되는 제어이론들 중 H$_{\infty}$ 제어이론이 많이 연구/응용 되고 있다. 특히 공칭 플랜트 모델과 함께 사용되는 플랜트 모델과 함께 사용되는 플랜트 불확실성 모델은 직접적으로 성능 및 안정도에 영향을 미치므로 주의 깊게 선정해야 한다.

• (The)Study of the Eastern Classic
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• no.66
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• pp.303-330
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• 2017

The purpose of this article is figuring out the modern understanding of SimChong Jeon's narrative and its storytelling strategy in the movie (2014). In the movie, there are three steps which are based on the temporal flow of narrative. shows the web-like structure of desire especially by focusing on the male character Sim Hakkyu. The relationship among characters in is gradually broken because of the desire. Moreover, the desire pushes Sim Chong who is Sim Hakkyu's daughter into the sacrifice. This part seems similar with the narrative of SimChong-Jeon which has been transmitted since 18~19 century in Choson dynasty. However, also tells a different story which describes the progress of Sim Hakkyu's seeking the real relationship filled with love. This difference is able to make people read with the 'stroytelling' point of view. All the lack or problem in is closely related to the desire of Sim Hakkyu. His narrative is something different from the typical story of SimChong-Jeon. A new narrative of Sim Hakkyu is not Sim Chong centered story but rather the anti of it. 'The other narrative' in seems social practice of storytelling in order to break down the preconception of SimChong-jeon called 'cannon'. This is the storytelling strategy of and it suggests the another way of creating new narrative which is based on the classical cannon.

• Cross-Cultural Studies
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• v.48
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• pp.67-106
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• 2017

This study focuses on two specific history of Korean literature in Chinese: the outline of The History of Joseon Literature (2010) by Li Yan and The History of Joseon Literature (1988, 2008) by Wei Xu-sheng; it was conducted to compare narrative viewpoints to the history of South and North Korean literature and therefore identify distinguishable characteristics. As a result, the following was concluded. First, The History of Korean Literature by Cho Dong-il and The History of Korean Literature in North Korea (15 volumes) include thorough discussions on division of historical eras, concept of genres as well as individual literary works and applied such discussions on writing literary history. However, Wei Xu-sheng and Li Yan's The History of Korean Literature did not illuminate theoretical discussion of South and North Korea. Li Yan's outline of The History of Joseon Literature was published in 2010 and the first edition of Wei Xu-sheng's The History of Joseon Literature was published in 1986 and later was published as revised editions in 2000 and 2008. Regarding published dates, it is a matter of course to reference Cho Dong-il's The History of Korean Literature, published in the 1980s, or The History of Korean Literature in North Korea (15 volumes), published in the 1990s; nevertheless, neither Wei Xu-sheng nor Li Yan used those texts in their works. Their works were heavily influenced by the narrative tradition of the history of national literature and therefore, entailed unsophisticated discussion on the division of historical eras or the concept of genres. Second, those two texts also emphasized external factors such as politics, society, economy and culture and explicitly mention these factors in historical overview of each chapter. Such an approach is commonly used in narratives of literary history under socialist regimes, including The History of Korean Literature in North Korea (15 volumes). Accordingly, evaluations based on 'political standards' - stress of people, nationality, practicality and so forth - in main texts are particularly accentuated, akin to narratives of literary history under socialist regimes. Finally, since those two Korean literature history works are written by Chinese scholars, they focus on correlation between Chinese literature history and Korean literature history. However, several genre-related terminologies such as Xiaopin (a kind of essay), Yuefu (a kind of popular song/poem), Yuyan (fable), Shuochang (telling of popular stories with the interspersal songs), Shizhuan (biography or/and memoirs in history) were adopted directly from Chinese literature. In analyzing Korean literature using terminologies introduced from Chinese literature, differences between original and alternative definitions were not examined in detail. While some terminologies and concepts were adopted directly without further consideration as to state of the two nations, it is also interesting to note that dichotomy, mainly used in Korean literature history, was used to discuss the genre of Cheonki (romance tale), relevant to Suyichon and Keumosinhua, rather than follow traditions of Chinese literature history.

• Asian Journal of Turfgrass Science
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• v.20 no.2
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• pp.175-190
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• 2006

The term mycoherbicide started in 1970, but its interest heightened due to increase costs of chemical herbicides. A classical biocontrol agent is expected to become a permanent part of its new environment and do no harm to it. Contemporary biological control agent(BCA) must be produced by artificial culture and could be applied like chemical herbicides over weeds. BCA is different from the classical approach in that it released through natural spread. To date 26 species of fungi are used as classical BCA against 26 species of weeds in seven countries. There are a number of examples of pathogens attacking non-target plants. But through risk assessments which include understanding the taxonomy, biology and ecology, the target and non-target species, it will be safe to introduce of exotic pathogens to control weeds. But pathogens have not been successfully used in practice. Many mycoherbicides show potential in laboratories, but are ineffective in the field and not consistent from year to year or field to field. There is also a lack of understanding humidity, dew formation and temperature and their effects on suppression of weeds by plant pathogens. Potential pathogen must be selected as a BCA. Previous studies suggest that these pathogens must (1) produce abundant and durable inoculum in artifical culture, (2) be genetically stable and weed specific and (3) kill weeds in control. A granular preparation of mycoherbicide into sodium alginate is lighter than liquids and less bulky than organic matter. Gel forms have also been used.