• Journal of Korean Medical classics
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• v.27 no.4
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• pp.21-27
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• 2014

Objectives : Among the translations of the verse "Sa-gi is on the upper side, Tak-gi is on the middle side, Cheong-gi is on the under side(邪氣在上, 濁氣在中, 淸氣在下)" in the texts of Miraculous Pivot(靈樞) Nine needles and Twelve sources(九鍼十二原), the meanings of 'Ham-maek(陷脈)' and 'Joong-maek(中脈)' have contradictory versions. Methods : This study will identify the actual meaning of this verse through analysis of the phrase "夫氣之在脈也", followed by examination of the relationship between the meaning of "three-stratum puncture(三刺)" in the chapters Miraculous Pivot Handling needle(官鍼), Miraculous Pivot Jong-si(終始) and the meaning of "刺有三變" of Miraculous Pivot Longevity and character(壽夭剛柔), after which its application in later periods will be discussed. Results : The words 'Sa-gi', 'Tak-gi' and 'Cheong-gi' in the phrase "夫氣之在脈也" of Miraculous Pivot Nine needles and Twelve sources each correspond to the words 'yang pathogens(陽邪)', 'yin pathogens(陰邪)' and 'essence derived from food(穀氣)' of Miraculous Pivot 終始, respectively. Conclusions : The Upper-Middle-Lower of the phrase "夫氣之在脈也" in Nine needles and Twelve sources indicates the three levels of depth, in which 'Sa-gi', 'Tak-gi' and 'Cheong-gi' each dwell. 'Ham-maek' and 'Joong-maek' are categorizations according to the depth of needling.

• Journal for History of Mathematics
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• v.11 no.1
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• pp.27-35
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• 1998

As Chinese philosophy has developed by commentary for the original texts, the Nine Chapters has been greatly improved by the commentary given by Liu Hui and it was transformed from an arithmetic text to Mathematics. Comparing his commentary and Chinese philosophical development up to his date, we conclude that Liu Hui was able to make such a great leap by his thorough understanding of philosophical development.

• Korean Journal of Mathematics
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• v.20 no.1
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• pp.137-159
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• 2012

In this paper, we deal with recent researches on Ying N$\ddot{u}$ and Ying Buzu(盈不足) which were addressed in the book Jiu Zhang Suan Shu(九章算術, The Nine Chapters on the Mathematical Art). Ying N$\ddot{u}$(Ying Buzu) is a concept on profit and loss problems. Ying Buzu Shu(盈不足術, the method of excess and deficit) represents an algorithm which has been used for solving many mathematical problems. It is known as a rule of double false position in the West. We show the importance of Ying Buzu Shu via an analysis of some problems in 'Ying Buzu' chapter. In 1202, Fibonacci(c.1170-c.1250) used Ying Buzu Shu in his book. This shows some of Asian mathematics were introduced to the West even before the year 1200. We present the origin of Ying Buzu Shu, and its relationship with Cramer's Rule. We have discovered how Asia's Ying Buzu Shu spread to Europe via Arab countries. In addition, we analyze some characters of Ying N$\ddot{u}$(Ying Buzu) in the book Suan Xue Bao Jian(算學寶鑑).

• 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.

• Journal of Korea Multimedia Society
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• v.25 no.4
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• pp.620-627
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• 2022

This study analyzed the shot pattern through the tempo of segmented shot duration and studied the relationship with the unique emotion of the story. The structure of the story was classified into 3 chapters, 17 sequences, 83 scenes, 287 beats, and 1636 shots. Shot density is a method of visualizing tension in visual storytelling, and since it is a result obtained by mathematically calculating the density of divided shots, it can be helpful in designing tension delivered to the audience. Nine shot density patterns were extracted. The ascending(+) type was classified as A, B, C, D, 4, the descending(-) type, E, F, G, H, 4, and the maintenance(/) type, I, 1 type. Based on the spatiality of the 17 stages of Campbell's heroic narrative and McGee's story structure, the narrative level of the tree structure was proposed, and the symbolic meaning of the shot rhythm in the practical aspect of the story function was proposed to present a systematic methodology in the direction of production.

• Journal for History of Mathematics
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• v.15 no.2
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• pp.101-112
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• 2002

Gu-Jang-San-Sul is a book of Chinese ancient mathematics and has had an impact on Korean mathematics. The book is organized into nine chapters and each chapter is composed of problems, answers, and their computation algorithms. The contents reflect the practicality of Chinese mathematics. Especially the first chapter covers the computation of fractions for land surveying. This paper suggests how the computation methodology is used in teaching fractions for primary school students. Five strategies for fractions related to the reduction, addition, subtraction, multiplication, and division are followed by: 1) developing the ability to apply rules to problems by practicing the computation process according to the given algorithm; 2) developing the communication skill by comparing the differences of various computation algorithms; 3) setting computation problems; 4) understanding the characteristics of terminology in mathematics; and 5) being exposed to new ideas in mathematics.

• Journal for History of Mathematics
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• v.20 no.2
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• pp.47-58
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• 2007

In this paper, we shall try to give a comparative study of mathematics developments in ancient Greece and ancient Oriental mathematics. We have found that the Oriental Mathematics. is quantitative, computational and algorithmetic, but the ancient Greece is axiomatic and deductive mathematics in character. The two region mathematics should be unified to give impetus to further development of mathematics in future times.

• The Journal of Korean Medical History
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• v.32 no.1
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• pp.21-31
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• 2019

This study examines a Song-dynasty book entitled TaeYiKukZieKuaZungMun Kyuk (A Collection of Imperial Medical Service Examination Questions and Answers 太醫局諸科程文格), which is the collection of questions and answers in the state examinations on medicine. This book was compiled by Hah Dae-yim (何大任) who was the vice-principal of the TaeYiKuk (The Imperial Medical Service 太醫局). The book consists of nine chapters. The present study reviewed all the chapters and found a number of significant issues. First, test-takers were required to be highly proficient in the fundamental knowledge of canonic texts of East Asian medicine. Second, pulse diagnosis was emphasized among the four diagnostic methods (四診). Third, herbal medicine formulas are organized according to the fixed structures of Ki Bang (奇方), which contained an odd number of herbs and Wu Bang (偶方), which contained an even numbered herbs), and fixed ratios for mixing various herbs. Fourth, there is a theory for division of therapies in which acupuncture is used for meridian diseases and herbal medicine for organ diseases. Fifth, herbal medicine formulas based on Unki theory (運氣學) are simpler than those of the previous generations. Sixth, the knowledge on the place of origin of herbs was emphasized. Seventh, knowledge of the relationship between herbs was also emphasized. Eighth, Tang (湯) and San (散) were used most frequently as forms of medicine.

• Journal of the Korea Institute of Building Construction
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• v.9 no.3
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• pp.65-71
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• 2009

General criteria for the quality of porous concrete have not been established yet in Korea. And yet, pavement and construction have been performed. In this paper, guidelines on the construction site quality control of porous concrete were developed in order to establish criteria for resolving the issues and problems of porous concrete, to establish methods for improving poor performance, and to manage porous concrete more systematically. In addition, a guide for the construction site quality control of porous concrete, which was appropriate for reality, was developed by researching several quality control guides and maintenance at construction sites. The guide consists of a total of nine chapters such as Application Range, Overview, the Structure of Porous Concrete, the Design of Package Thickness, Package Materials for Porous Concrete, Construction Methods, Quality Assurance and Inspections, Construction Site Quality Control, and Maintenance. It describes quality control guidelines in all steps such as methods for transporting porous concrete from the factory to the construction site, cautions for construction work at construction sites, maintenance, and management. The Guide for the Construction Site Quality Control of Porous Concrete is expected to ensure the quality of porous concrete, to reduce national costs for quality assurance, and to help ensure the health and safety of Korean people.

• Journal for History of Mathematics
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• v.21 no.2
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• pp.19-38
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• 2008

This study aims to investigate the evolution of calculating the volume of a sphere in eastern and western mathematical history. In western case, Archimedes', Cavalieri's and Kepler's approaches, and in eastern case, Nine Chapters';, Liu Hui's and Zus' approaches are worthy of noting. The common idea of most of these approaches is the infinitesimal concept corresponding to Cavalieri's or Liu-Zu's principle which would developed to the basic idea of Calculus. So this study proposes an alternative to organization of math-textbooks or instructional procedures for teaching the volume of a sphere based on the principle.