• Journal for History of Mathematics
• /
• v.16 no.2
• /
• pp.117-128
• /
• 2003

We investigate the origin and recent history for fuzzy equations. And we introduce the existence theorems of solutions for the fuzzy differential equation with infinite delays and fuzzy functional integral equations. We will also recent researches for controllability of sobolev-type semilinear integro-differential fuzzy system.

• Journal of Agricultural Extension & Community Development
• /
• v.8 no.2
• /
• pp.191-199
• /
• 2001

The objectives of this study was to explore the concept, the origin and history, and classification of amenity. Amenity is a new approach about nature, environment and the world. The concept, origin and classification of amenity was widely diversified, however, the concept of amenity was inclusive and abstract, so amenity was easier to recognize than to define. Even though many people were interested in amenity, however, the movement or practice of amenity in Korea was still in infancy stage. This paper was an exploratory study of amenity and more detailed further studies on amenity should conducted in Korea. It was suggested that we should not start on philosophical question of amenity. We should rather start on practical problems of how to put into practice to insure quality of life in the community, to conserve nature, to study practical dimensions of amenity, and to develop indicators to measure amenity.

• Journal of architectural history
• /
• v.21 no.4
• /
• pp.47-58
• /
• 2012

The purpose of this paper is to trace the architectural origin of the Bosung College Library (1935~37), which is currently used as Graduate School Building of Korea University. So far, numerous books have repeatedly described that the library was modelled on a Duke University library, but without any serious consideration. Through literature review, field-trip and archives investigation, this research discovered new critical facts concerning the origin of the building. First, Dong-Jin Park, the architect for Bosung College, saw a photograph of the Duke library in a Duke University catalog possessed by Chun Suk Auh, Professor of the college at that time. Second, the Duke library that he saw in the catalog, which might possibly be Bulletin of Duke University (Feb. 1931), is certainly the present Perkins Library (1930) in Duke University West Campus. Third, the architect probably referred not only to the library but also to other Duke buildings such as School of Medicine and The Union, of which photographs were also published impressively in the Bulletin. Although the Bosung College Library was inspired by the Duke buildings, however, it is undoubtedly a creative design work by the architect Park. Arguably, these findings broaden our view of Korean architectural history in the modernization period, and it is more than a confirmation of just one building's origin.

• Journal for History of Mathematics
• /
• v.32 no.1
• /
• pp.27-44
• /
• 2019

This study analyses and discusses on the characteristic and the origin of the exhaustion method caused by the controversy over whether that method succeeded to the Antiphone's complete exhaustion idea and whether that method is similar to the method of limits. First, this study analyses 'principle of exhaustion method' which play an important role in that method in order to grasp the local characteristic of it. And this study speculates the origin of the exhaustion method by considering the time and situation of appearance and looking through the local characteristic of it. Also, this study takes a view of the overall characteristic of the exhaustion method by inquiring into the process of actual application of 'principle of exhaustion method' in a proof. As these results, this study reveals that the exhaustion method uprose not as a succession of Antiphone's idea but as a reaction to its idea, and that the exhaustion method has the recognized character of 'finitude' as distinct from the method of limits.

• The Journal of Korean Medical History
• /
• v.27 no.1
• /
• pp.51-60
• /
• 2014

Objectives : Actually Wongi did not exist in "Neijing(內經)" as a word. Wongi is one of specific features that distinguish "Nanjing" from "Neijing". I have researched for the foundation of history and thought. Methods : I have looked into cognitive variation for Heaven (天), that is from Chinese ancient times through the period of the Han (漢) Dynasty. Results : 1. Before the period of the Yin (殷) Dynasty : There was some worship. 2. The period of the Yin Dynasty : The Lord (上帝) was respected and idolized. 3. The period of the Zhou (周) Dynasty : That the origin of existence is also in human was recognized through Doctrine of Heaven (天命思想). 4. The period of the Han Dynasty : Doctrine of Heaven was transfigured as ideological instrument for politics. The spiritual and physical human's independence was flowed into even though it was not separated from Heaven. Conclusions : As concerned above, the variation shows that consideration for the origin of existence flowed from the outside of human being, like the progenitor of human race, nature, and Heaven, through inside gradually. In the other words, the origin of existence was come to inquire inside of human being. As an aspect of medical science, it can be showed that the term of Wongi was influenced of these process.

• The Journal of Korean Medical History
• /
• v.27 no.2
• /
• pp.1-9
• /
• 2014

Objectives : Most academic societies have their own journals. Those journals represent the trends of academic societies' studies. Therefore, it is important to review articles in journals. Korean Society of Medical History (KSMH) has Journal of Korean Society of Medical History (J. of KSMH). We analyze articles in J. of KSMH and try to recognize the trends. Methods : From Vol. 12 No. 2 in 1999 to Vol. 27 No. 1 in 2014 of the J. of KSMH, we retrieved article's headings and analyzed those subjects. Results : We got 342 research articles about ; book 97, person 44, theory 65 (medical theory 48, thought 8, origin of word and story 9), clinical research 42 (disease 19, method 16, treatment 7), system of medicine and medical treatment 22 (system of medicine 10, system of medical treatment 12), mutual and comparative study in medicine 18 (mutual study 14, comparative study 4), etc. 56 (materia medica and prescription 23, trends study and essay 18, traditional medicine informatics 10, community medicine 5). Conclusions : J. of KSMH contained several subjects based on medical history ; book, person, theory, thought, origin of word and story, clinical research, mutual and comparative study in medicine, etc. However, the subjects were biased to books and persons.

• Journal for History of Mathematics
• /
• v.15 no.2
• /
• pp.49-68
• /
• 2002

One of the characteristics of modem mathematics is to use algebra in every fields of mathematics. But we don't have the exact definition of algebra, and we can't clearly define algebraic thinking. In order to solve this problem, this paper investigate the history of algebra. First, we describe some of the features of proportional Babylonian thinking by analysing some problems. In chapter 4, we consider Greek's analytical method and proportional theory. And in chapter 5, we deal with Diophantus' algebraic method by giving an overview of Arithmetica. Finally we investigate Viete's thinking of algebra through his ‘the analytical art’. By investigating these history of algebra, we reach the following conclusions. 1. The origin of algebra comes from problem solving(various equations). 2. The origin of algebraic thinking is the proportional thinking and the analytical thinking. 3. The thing that plays an important role in transition from arithmetical thinking to algebraic thinking is Babylonian ‘the false value’ idea and Diophantus’ ‘arithmos’ concept.

• Journal for History of Mathematics
• /
• v.15 no.3
• /
• pp.65-74
• /
• 2002

In this paper we investigate an origin and development of the classical theory of probability. And we also investigate the law of large numbers and central limit theorem which are very important in tile probability theory.

• Journal for History of Mathematics
• /
• v.14 no.2
• /
• pp.13-20
• /
• 2001

The topological structure of a topological space is completely determined by the data of convergence of filters on the space. We study the origin of convergence structure in the setting of filters and nets and their ramifications.

• Journal for History of Mathematics
• /
• v.13 no.2
• /
• pp.41-48
• /
• 2000

In this paper, we explore the origin of the notion of an M-ideal, and appreciate the richness of algebraic and geometric properties of an M-ideal.