• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.3
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• pp.15-24
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• 2015

Jacket matrices which are defined to be $m{\times}m$ matrices $J^{\dagger}=[J_{ik}^{-1}]^T$ over a Galois field F with the property $JJ^{\dagger}=mI_m$, $J^{\dagger}$ is the transpose matrix of element-wise inverse of J, i.e., $J^{\dagger}=[J_{ik}^{-1}]^T$, were introduced by Lee in 1984 and are used for Digital Signal Processing and Coding theory. This paper presents some square matrices $A_2$ which can be eigenvalue decomposed by Jacket matrices. Specially, $A_2$ and its extension $A_3$ can be used for modifying the properties of hyperbola and hyperboloid, respectively. Specially, when the hyperbola has n times transformation, the final matrices $A_2^n$ can be easily calculated by employing the EVD[7] of matrices $A_2$. The ideas that we will develop here have applications in computer graphics and used in many important numerical algorithms.

• Journal of the Korea Fashion and Costume Design Association
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• v.20 no.4
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• pp.1-16
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• 2018

This study focuses on the correlation between Kotgal and paper-folding. This paper first examines the meaning and history of Korean ancient Kotgal and then investigates relationship between Kotgal and Korean paper-folding culture which has been inherited in various ways. Throughout the study, literature research and analysis have been conducted along with empirical studies. The results of the study are as follows. First, it has been told that Kotgal was used a as a trident hat symbolizing the sky, land, and man, whereas Korean paper-folding is known as closely related to the folk beliefs which had existed since ancient times. From ancient times, the Korean ancestors expressed the Three Gods representing beauties of the nature, 'sky(Chun), land(Ji) and man(In)' on the conical hat and prayed for their wish to the heaven. Second, Kotgal has been evolved in various ways from ancient times through Goryeo and Joseon Dynasty to present. The form of Kotgal has begun with folding and this is closely related to the origin of Korean paper-folding, which is the Korean traditional craft. Third, the paper-folding tradition of Korea has been variously applied in the Korean culture such as rituals, life crafts and plays and expresses the unconventional philosophical concepts unique of Korea. In conclusion, this study evidently shows that the Korean philosophical ideas behind Kotgal which originated from ancient paper-folding are scientific and systematic.

• Journal of the Korean Mathematical Society
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• v.38 no.5
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• pp.1069-1105
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• 2001

Regular maps and hypermaps are cellular decompositions of closed surfaces exhibiting the highest possible number of symmetries. The five Platonic solids present the most familar examples of regular maps. The gret dodecahedron, a 5-valent pentagonal regular map on the surface of genus 5 discovered by Kepler, is probably the first known non-spherical regular map. Modern history of regular maps goes back at least to Klein (1878) who described in [59] a regular map of type (3, 7) on the orientable surface of genus 3. In its early times, the study of regular maps was closely connected with group theory as one can see in Burnside’s famous monograph [19], and more recently in Coxeter’s and Moser’s book [25] (Chapter 8). The present-time interest in regular maps extends to their connection to Dyck\`s triangle groups, Riemann surfaces, algebraic curves, Galois groups and other areas, Many of these links are nicely surveyed in the recent papers of Jones [55] and Jones and Singerman [54]. The presented survey paper is based on the talk given by the author at the conference “Mathematics in the New Millenium”held in Seoul, October 2000. The idea was, on one hand side, to show the relationship of (regular) maps and hypermaps to the above mentioned fields of mathematics. On the other hand, we wanted to stress some ideas and results that are important for understanding of the nature of these interesting mathematical objects.

• Korean Institute of Interior Design Journal
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• v.15 no.5 s.58
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• pp.52-59
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• 2006

Since the time of Vitruvius, the sciences have impacted on the perspectives for architecture and have had a direct influence on the shaping of built space. In recent years, architects have been looking again at sciences as a source of inspiration in the production of their designs and constructions. There are various ways to look at architecture's relationship to science. It is interesting to see how many of the words of day-to-day architectural speech have been drawn from science, the abundant use of references such as topology, fractals, chaos theory, and so on. The reasons for this may be obvious, insofar as science has become the dominant discourse of our times. The numerous attempts have been made to constitute architectural practice so as to bring it into line with the methods of science. But Alberto Perez-Gomez juxtaposed architectural theory and Husserl's. The Crisis of European Science. In Husserl's 'Crisis', it is modern science itself that is laid open question. Through examining its changing relationships to architectural ideas this paper is intended to describe the problematic relationship between science and architecture, in other words, architecture's as science.

• Journal of Korean Medical classics
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• v.12 no.2
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• pp.200-213
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• 1999

The Haeng Chym(行鍼) which is the sixty seventh chapter of the Young Chu(靈樞), predominantly explicates the six kinds of needling reactions. The principle ideas of this thesis can be summarized as following, the Haeng Chym is divided into three parts in this thesis. 1st part: It shows that the six kinds of reactions occur from the excess and deficiency of yin-yang(陰陽) which is due to each different constitution(體質) in the acupuncture. 2nd part: It explains the excessive visceral-qi(臟氣) which is due to congenital constitution and the needling reaction which appears among the man of overabundant yang(重陽之人). It shows needling reaction of the man who has a little yin among the man of overabundant yang. 3rd part: It explains the quick and slow of the reaction whim occurred in the acupuncture, the presence of reaction by the times of acupuncture, abnormal rising of qi, bad needling reaction in the acupuncture and the side effect by frequent acupuncture.

• Journal of the Korean Society of Costume
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• v.55 no.4 s.94
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• pp.124-137
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• 2005

Foreign culture, introduced by cultural exchange, was modified and accepted into a new form and value system. Culture speaks for the characters of the period, so it is presented by the mutual actions of many factors affecting culture. Religion is the essence of human life and the source of ideas about life, the universe and existence, so they become hidden inside of the structure of culture. Dancing costumes present the process of cultural modification and acceptance more vividly than general costumes. This research shows that, among foreign cultures, it is Buddhism that most influenced Chinese dancing costume. Taoism was the Chinese native religion that played an oppositional role against Buddhism. Taoism was hidden in Chinese dancing costume in every age. Chinese dancing costume changed many times due to the import of exotic styles such as Buddhism that partially replaced the Taoistic tradition. Therefore, it is confirmed that the process of cultural importation of exotic style was different according to the social, historical, and cultural backgrounds of China during the period from the Han to the Sui and Tang dynasties.

• Journal of the Korean Society of Costume
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• v.55 no.8 s.99
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• pp.48-56
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• 2005

Foreign culture, introduced by cultural exchange, was modified and accepted into a new form and value system. Culture speaks for the characters of the period, so it is presented by the mutual actions of many factors affecting culture. Religion is the essence of human life and the source of ideas about life, the universe and existence, so they become hidden inside of the structure of culture. Dancing costumes present the process of cultural modification and acceptance more vividly than general costumes. This research shows that, among foreign cultures, it is Buddhism that most influenced Chinese dancing costume. Taoism was the Chinese native religion that played an oppositional role against Buddhism. Taoism was hidden in Chinese dancing costume in every age. Chinese dancing costume changed many times due to the import of exotic styles such as Buddhism that partially replaced the Taoistic tradition. Therefore, it is confirmed that the process of cultural importation of exotic style was different according to the social, historical, and cultural backgrounds of China during the period from the Han to the Sui and Tang dynasties.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2006.05a
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• pp.125-130
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• 2006

The various kinds of consumption belong to a general category and at the same time the expression of most basic aspiration in the human life. Since the ancient times, the consuming activities have lasted with the other basic activities and the consuming space conducting consumption has developed as physical devices along with the human history. Those companies that have been given attention and getting favorable impression currently being selected by the consumers are now concentrated on the storytelling marketing. The storytelling marketing is that the emotion-oriented marketing activities give consumers the opportunities to enjoy the product contained stories to put the stories to marketing activities. It approaches to consumer with human story emotionally rather than rationally and heart rather than mind. Recently, the architecture has become artistic either it was linked and contacted media or part of marketing. We think that the story telling marketing is the eternal triangle among art, architecture and marketing that is a propensity or movement to interior at this time. I found out that the storytelling marketing methodology is able to touch the consumer's heart and stimulate consumption aspiration that makes new circumstances and experience expressing space. And for that, effective marketing methodology is to give the consumers a more exciting and enjoyable motivation in accord with the modern society to give companies positive image to customers and accordingly for the companies to gain profits. The story telling space that is filled with ideas which produce new circumstance and experience using the established narrative and theme will be required continuously and able to develop in the future.

• Journal of the Korean Operations Research and Management Science Society
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• v.20 no.1
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• pp.11-26
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• 1995

We have used various information technologies (IT) in group decision-making for increasing effectiveness and satisfaction of group decision-making process. Recently, a new form of IT so called Group Decision supprot System (GDSS) was introduced into group decision-making process. Previous experimental studies about effectiveness of GDSSS have been inconsistent and the results were mixed. There was no empirical studies about GDSS in Korea. In this study, we divide two groups-GDSS supported group and traditional face-to-face group and investigate impacts of GDSS on group decision-making processes and outcomes. An idea generation task for operational action plan development, implementing GEO's strategic vision, served as the decision-making context. Supported GDSS is GroupSystems V, which had been developed by Univ. of Arizona. It was translated by Korean. According to the results, Number of nonredundant ideas in GDSS group is two or three times more than Non-GDSS grop. GDSS group feel more equal status, have better interpersonal relationship, have more confidence on group decision than Non-GDSS group. But satisfaction of participants on decision-making process and outcome has not showed a significant difference between two groups. Because all of participants in GDSS group were novice to GDSS. With this results we suggest further studies on transforming western type GDSS to Korean decision-making culture. It will be cornerstone for development of GDSS in Korean desision-making culture. It will be cornerstone for devlopment of GDSS in Korean decsion making culture environment.

• Journal of Korean Library and Information Science Society
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• v.7
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• pp.57-84
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• 1980

In the study of library history in our country, the history of the Koryo Dynasty is very important. The Pisosong, the first library to be operated by the government, was founded in 995 .A. D. Although research about the Pisosong indicated that it was located outside the palace the author felt that further investigation was needed. Might not the library be located inside the palace\ulcorner For this reason, this study examined 1) the historical background of the Pisosong, 2) changes in its structure and organization, 3) its organization and personnel, 4) its function and, 5) its relation to the Pigak and the Osowon. The findings of this study may be summarized as follows: 1) Pisosong was changed and reorganized 15 times by the end of the Koryo Dynasty. 2) Its functions were keeping official documents and books, buying, exchanging, publishing, editing, revising books, writing official documents for the king and, as a place to discuss ideas and sometimes to deliver lectures to the king. 3) Osowon was another institute which was equivalent in its function and role to the Pisosong. 4) The Pisosong was in all probability located inside the palace because there were very important books in it. It is assumed that its location should be a secure place. Also this would enable the library to be managed more conveniently. 5) The Pigak in the Koryo Dynasty must have been located inside the palace as the Piko in the Sung Dynasty in China was.