• Journal for History of Mathematics
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• v.23 no.2
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• pp.75-87
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• 2010

This Chinese classic on divination can be a textbook for the interpretation of the living cosmos. In ancient the Chinese used to interpret correspondence between human and the cosmos with HADO-NAGSEO and the Eight Trigrams for divination. We will study a mathematical principle of Ancient China in the Chinese classic on divination.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.557-566
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• 2022

The purpose of this study is to understand the correlation between Master Jin Bodhi and practicing Medicine Buddha, and to examine the concept and value of the method of asceticism related to practicing Medicine Buddha. Accordingly, as a result of collecting and analyzing a wide range of literature data on Master Jin Bodhi, Master Jin Bodhi was able to capture and present various historical sources of using various method of asceticism based on practicing Medicine Buddha. In addition, the concept and value of the method of asceticism about The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua were considered and presented as representative practices among the various practices taught to modern people in physical and mental weaknesses across the world. This study is of academic significance in that it clearly distinguishes the concepts and unique values of each of the The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua based on the results of the correlation between Master Jin Bodhi and practicing Medicine Buddha. Nevertheless, this study did not fully reveal the historical causality of the process of expanding Master Jin Bodhi's method of asceticism related to practicing Medicine Buddha, and has limitations in not considering the concept and value of the method of asceticism other than the The Method of Great Illuminated Asceticism, Throwing Five Parts of the Body, and Energy Bagua. Specific methods for further research were suggested.

• Journal of Physiology & Pathology in Korean Medicine
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• v.19 no.3
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• pp.586-589
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• 2005

To study on the assignment of the eight trigrams (八卦) for the process on intake, digestion, excretion of food. Being based BEOK-HEE's diagram of eight trigrams order(伏羲次序圖), provisional namely six entera are assigned eight trigrams(八卦). Eight trigrams(八卦) are attached to the air(GEON 乾), the month(TAE 兌), the stomach(LEE 離), the small intestine(JIN 震),the large intestine(SON 巽), the rectum(GAM 坎), the anus(GAN 艮), the excrements(GON 坤). The BEOK-HEE's diagram of eight trigrams order(伏羲次序圖) means immutable order naturally. The process of six entera's digestion is also unchangeable in region and program. Therefore we can set up the process of six entera's digestion as the category of observation on the basis of BEOK-HEE's diagram of eight trigrams order(伏羲次序圖), and then we can arrange eight trigrams(八卦) on the process of six entera's digestion.

• Journal of Physiology & Pathology in Korean Medicine
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• v.21 no.2
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• pp.379-386
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• 2007

Hado(河圖) and Laks${\u{\lrcorner}}$(書洛) are the diagrams composed of the symbols of numbers from one to ten. And the eight-trigrams, P'al-gwoe divide into two types one is a priori eight-trigrams (先夭八卦) or the Bok-Hui's eight trigrams(伏羲八卦); and the other is a posterior eight trigrams (後夭八卦) or the king Mun's eight trigrams (文王八卦). Relating these two diagrams of Hado and Laks${\u{\lrcorner}}$ with the two types of eight trigrams, they are said to be a term of Ha-Lak-Hui-Mun (HLHM). Each of HLHM represents the process of creating and changing of 'heaven and Earth' and every beingby the symbols of numbers and trigrams. In other words, each of HLHM symbolizes the origin and the structure of the universe as well as the birth of every life represented in the diagram of theosophany (福智學) or Kabbalah. HLHM are also regarded as the origin of l-ching or Book of Change. Hado produces Laks${\u{\lrcorner}}$ through the principle of yin-yang(陰陽). Laks${\u{\lrcorner}}$ produces a priori eight trigrams through the zigzag shapes which means Heaven and Earth are mutually responding. And a priori eight trigrams produce a posteriori eight trigrams through the triangle principle of connecting Heaven and Earth. In this process, Hado and a priori eight trigrams are respectively prior to Laks${\u{\lrcorner}}$ and a posteriori eight trigrams. HLHM represent fractal shape resembling the symbol of five on the center of Hado, or Hado itself. In the dynamic process of HLHM, a diagram of Circle, Quadrangle, and Triangle (CQT) is produced as follows: Circle, the symbol of 'infinify' or Heaven, represents the origin of life or birth. Hadois the symbol of creation. Quadrangle, the symbol of Earth, represents that Laks${\u{\lrcorner}}$is scattered into four directions of front, back, left, and rifht. Quadrangle, which is immovable, represents materiality. Triangle, being described from the eight trigrams, means the movements of the process of 'mutual inclusion' of Circle and Quadrangle. Triangle also means the process of harmonizing human beings with natural law.

• Conservation Science in Museum
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• v.25
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• pp.1-8
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• 2021

This study investigated White Porcelain Water Dropper with Openwork Lotus Scroll Design and Eight Trigram Design in Cobalt-blue Underglaze (hereinafter, the "water dropper") in the collection of the National Museum of Korea using computed tomography (CT). A replica was produced to examine both the structure and its original production method. The CT scanning identified no joint lines or pores in the clay, which suggests that the body (the lower part of the water dropper) was shaped in a single piece using a mold and was then matched with a mold-formed lid (the upper part of the water dropper). The inner container of the body portion was roughly trimmed with a bamboo knife so that its upper surface could be securely attached to the bottom of the lid and prevent any leakage in the joined surface. It appears that the inner container for storing water was made first in a cylindrical shape that met the unit of quantity used at the time and could be easily formed by molding. It was transformed into a trapezoid shape during the process of combining it with the lid. A cylindrical inner container was reproduced using silicon 3D printing to compare its capacity with that of the original inner container. The comparison revealed that the reproduced container had a capacity of 152.5㎖, whereas the original container holds approximately 168.6㎖, a figure similar to three hop (around 174㎖) in Joseon-period units of quantity. Since the capacity of the cylindrical inner container corresponds to a known measure from the late Joseon dynasty, it is likely that the water dropper was originally produced to contain a cylindrical inner container.

• The Journal of Korean Philosophical History
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• no.35
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• pp.275-308
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• 2012

This article aims to investigate the studies of Yi Xue Qi Meng(易學啓蒙) performed by the researchers of Neo-Confucianism in Ki Ho region in later Chosun period. Philologically speaking, these studies were mainly performed by Han Won Jin and his colleagues. While the study of Yi Hwang(李滉)'s Qi Meng Zhuan Yi(啓蒙傳疑) performed by the researchers of Toegye(退溪) School lasts from the end of the sixteenth century to the nineteen's century, the Ki Ho(畿湖) scholars' study of Yi Xue Qi Meng are centered in the eighteenth century and hardly any significant work on this text is found before and after this century. In order to single out the distinctive features of Ki Ho School of Neo-Confucianism, this article examines three subjects the Ki Ho scholars delved into: (i) their theory of Tai Ji(太極), (ii) their theory of He-Tu(河圖) and the formation of eight trigrams, and (iii) the so-called Wu Wei Xiang De Shuo(五位相得說) discussed in one of the sections in Yi Xue Qi Meng titled the Source of He-Tu and Luo Shu[本圖書]. The Ki Ho scholars are remarkable in interpreting Tai Ji in Yi Xue Qi Meng in the context of the theory of Li-Qi and the theory of human nature. There are differences in opinion among the Ki-Ho scholars with regard to the relation between He-Tu and the formation of eight trigrams. Eventually, they withhold Zhu Xi(朱熹) and Hu Fang Ping(胡方平)'s attempt to synthesize He-Tu, the rectangular diagram of Fu Xi(伏羲)'s eight trigrams, and the circular diagram of Fu Xi's eight trigrams into one single principle. Han Won Jin tries to explain the relation between He-tu and the formation of eight trigrams in terms of the relation between He-Tu and the circular diagram, and his attempt is widely supported by his colleagues. This theory runs counter to traditional model of explaining truth. My conjecture is that such academic trend is further developed by the defenders of Practical Learning such as Hong Dae Yong(洪大容), who vigorously reject traditional system of truth and science, and that it partly explains why the study of Yi Xue Qi Meng ceases in the nineteenth century.

• Journal of the Korean Institute of Landscape Architecture
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• v.49 no.3
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• pp.40-52
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• 2021

Various peoples lived in Changbai Mountain in each era, and the peoples of each period regarded Changbai Mountain as part of their own religious culture. Existing studies on the culture of Changbai Mountain are conducted only based on the events of a specific period, but how the sacredness of Changbai Mountain has changed from time to time, how it is related to the religious culture of the people of each period, and how sacred the areas and spaces have changed. There has been no research to that extent. The purpose of this study is to examine and analyze the meaning of Changbai Mountain's sacredness that has changed from time to time. In order to examine the change of the sanctity of Changbai Mountain through synchronicity, the study focused on the hierophany occurring between the religious culture of the peoples of each period and the space of Changbai Mountain. Specifically, the activities to protect the sacred objects and sacred spaces revealed by the hierophany were considered, and the change of the sanctity of Changbai Mountain was interpreted with the derived results. The summary of the results of this study is as follows. The sacred activities of Changbai Mountain have changed from time to time. During the pre-Qing dynasty, civilians performed incarnation rites, holy god rites, mountain god ceremonies, and willow god rites for livelihood and survival, and the king of the Jin dynasty offered rituals to the Changbai Mountain gods as rituals such as Four Mountains(Yuezhen). During the Qing Dynasty, the emperor built Wangji Temple and sent a government official to make a ritual to the Changbai Mountain god as the best ritual to symbolize the country. In modern times, Bagua Temple was built on the top of Changbai Mountain and sacrifices were made to the Changbai Mountain gods, and the nature of Changbai Mountain. Humans living in Changbai Mountain area were judged through the tricks of the Bagua Mountain. In addition, during this period, civilians performed ritual activities centering on the god Shanshenlaobatou, who personified life and production. In summary, the sacred activities of Changbai Mountain were shamanistic rituals based on animistic ideology in the pre-Qing dynasty, the best imperial rites for honoring the sacred as an imperial sanctuary in the Qing dynasty, and the Taoist ideology of migrants in the modern period. It had been transformed into a ceremonial activity. And the meaning of Changbai Mountain, viewed as a sacred activity, was elevated from the mountain of livelihood in the pre-Qing dynasty to the mountain of the nation in the Qing dynasty, and then changed to the mountain of modern production.

• Journal of Physiology & Pathology in Korean Medicine
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• v.20 no.6
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• pp.1447-1450
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• 2006

To study on the assignment of the eight trigrams (八卦) in human body being based on based the number of HADO(河圖)-NAGSEO(洛書). Being based on the number of HADO(河圖)-NAGSEO(洛書) and the BEOK-HEE's diagram of eight trigrams order(伏羲次序圖), human being organ (five-Jang organs (liver, heart, spleen, lung and kidney), five organs (ear, eye, mouth and nose), provisional namely six entera for the process on intake, digestion, excretion of food (mouth, stomach, small intestine, large intestine, rectum, anus) are assigned eight trigrams (八卦). Eight trigrams(八卦) are attached to the based on the number HADO(河圖)-NAGSEO(洛書): 1-GEON(乾), 2-TAE(兌), 3-LEE(離), 4-JIN(震), 9-SON(巽), 6-GAM(坎), 7-GAN(艮), 8-GON(坤). And (八卦) are attached to the human being organs (five-Jang organs (live, heart, spleen, lung and kidney), five organs (ear, eye, mouth, nose, anus) : 1-GEON(乾)-left lung-left nose, 6-GAM(坎)-right kidney-right ear, 7-GAN(艮)-left heart-anus, 8-GON(坤)-right liver-right ear. Eight trigrams(八卦) are attached to the provisional namely six entera for the process on intake, digestion, excretion of food : the air(GEON 乾), the month(TAE 兌), the stomach(LEE 離), the small intestine(JIN 震), the large intestine(Son 巽), the rectum(GAM 坎), the anus(GAN 艮), the excrements(GON 坤). The BEOK-HEE's diagram of eight trigrams order(伏羲次序圖) means immutable order naturally. The process of the human being organs( five-Jang organs, five organs and six entera's digestion) is also unchangeable in region and program. Therefore we can set up the five-Jang organs, five organs and the process of six entera's digestion as the category of observation on the basis of BEOK-HEE's diagram of eight trigrams order(伏羲次序圖), and then we can arrange eight trigrams (八卦) on the five-Jang organs, five organs and the process of six entera's digestion.

• The Journal of Korean Philosophical History
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• no.27
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• pp.85-118
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• 2009

Kim Hang(金恒: Il-Boo 1826-1898) presented that in the end of 19 century The Book of Correct Changes(正易) alternated I-Ching(周易) in Korea. He predicted that the New world would be realized soon. In other words, the Former-Heaven(先天) would be changed in to the After-Heaven(後天). The New world means the highest well-being society and harmonized world. He named the New world as the Yuli world(琉璃世上). The Book of Correct Changes contained the idea of reformation of society with great cosmic changes and taught us to cultivate and train our mind for transformation of human beings. The New world will be come true, and there the struggling will be ceased. The New world will be accompanied by the transformation of human beings. Each person has to persevere changing him(her)-Selfin his(her) efforts to be a holy man. All people will achieve the high spirit. Kim Hang taught us to renew ourself and made the new world where every person will live with Truth and have an equal right and treat others without discrimination.

• Journal for History of Mathematics
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• v.35 no.5
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• pp.131-146
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• 2022

This study is to find out how to use the materials of East Asian history in mathematics classroom. Although the use of the history of mathematics in classroom is gradually considered advantageous, the usage is mainly limited to Western mathematics history. As a result, students tend to misunderstand mathematics as a preexisting thing in Western Europe. To fix this trend, it is necessary to deal with more East Asian history of mathematics in mathematics classrooms. These activities will be more effective if they are organized in the context of students' real life or include experiential activities and discussions. Here, the study suggests a way to utilize the mathematical ideas of Bāguà and Liùshísìguà, which are easily encountered in everyday life, and some concepts presented in 『Nine Chapter』 of China and 『GuSuRyak』 of Joseon. Through this activity, it is also important for students to understand mathematics in a more everyday context, and to recognize that the modern mathematics culture has been formed by interacting and influencing each other, not by the east and the west.