• Journal of International Area Studies (JIAS)
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• v.14 no.2
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• pp.477-498
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• 2010

The Reasons which Rose Revolution, Orange Revolution, and Lemon Revolution had been much argued in international society are as follows: Firstly, the important fact was that authoritarian governments in Georgia, Ukraine and Kyrgyzstan were collapsed not by physical violences and military forces, but by unblooded civil movements, so called Civil Revolution. And it is also called as Colorful Revolution. Secondly, during the advance of three Civil Revolution, hegemony conflicts between Russia and western powers including US appeared. In fact, tensions between the two countries, Russia and US had already occurred in Post-soviet region after dissolution of Soviet Union. Thirdly, as a result of three Civil Revolution, there were built up fullest attentions in international societies about the possibilities of other civil revolutions, that is to say, 'Colorful Revolution' among the countries which were the republics of former USSR. In this respect, in this investigation of Lemon Revolution in Kyrgyzstan as like Rose Revolution in Georgia and Orange Revolution in Ukraine, this article examined the roles and supports toward NGOs of Western powers including US. To my opinion, it is likely that NGOs, with powerful sponsors, become political bodies working through networks and media rather than being rooted in civil society and acting on behalf of citizens. And that powerful sponsors, directly or indirectly financed by outside governments, become involved in political activities. So NGOs have been important roles in promoting civil revolution as political agencies and more political instruments of foreign governments. In the long run, through the Colorful Revolution, it is better to understand that hegemony struggle is beginning between external concerned superpowers including US and Russia, rather than hegemony struggle having directly broke out.

• The Pure and Applied Mathematics
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• v.19 no.1
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• pp.1-5
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• 2012

We study surfaces of revolution in the three dimensional Euclidean space $\mathbb{R}^3$ with two distinct axes of revolution. As a result, we prove that if a connected surface in the three dimensional Euclidean space $\mathbb{R}^3$ admits two distinct axes of revolution, then it is either a sphere or a plane.

• Journal of the Korean Society of Industry Convergence
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• v.22 no.6
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• pp.729-737
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• 2019

The world is now going through the era of the Fourth Industrial Revolution. Major global economies, including the United States, Germany, Japan and China, are fostering industries related to the fourth industrial revolution with policies and investments. South Korea is also setting up its fourth industrial revolution committee under the president, expanding policies and investment to foster industries related to the fourth industrial revolution, and increasing investment in research and development. Accordingly, government and private investment in industries and technologies related to the Fourth Industrial Revolution is made extensively around the world, and many related industries and technologies are being developed. In this paper, we will look into the status and problems of Advanced Concept Technology Demonstration projects that can quickly and easily introduce technologies related to the fourth industrial revolution in the private sector where many developments are taking place, and present the direction of development.

• Journal of Internet Computing and Services
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• v.21 no.3
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• pp.53-60
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• 2020

The period of the Fourth Industrial Revolution is our near future and the ongoing changes in this age. We need to strive to adapt to this changes and also try to create new values. This study focuses on workers' perceptions and attitudes (self-efficacy, expectancy, and acceptance of change) toward the Fourth Industrial Revolution. These positive attitudes toward the upcoming future and the Fourth Industrial Revolution will influence on both the future and the current attitude, behavior and performance of employees. People have certain attitudes to the future, and these attitudes have an impact on current behavior. This paper tries to examine the positive attitudes toward the Fourth Industrial Revolution era and the influence of positive attitudes toward this new age on the current job satisfaction. Through this process, this paper explains what kinds of attitudes the workers should have in the Fourth Industrial Revolution era, and also sheds light on significance and purpose of this paper to explain how these specific attitudes toward the future influence the present performance such as job satisfaction.

• Journal of the Korean Mathematical Society
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• v.42 no.3
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• pp.447-455
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• 2005

In this article, we introduce the notion of pointwise 1-type Gauss map of the first and second kinds and study surfaces of revolution with such Gauss map. Our main results state that surfaces of revolution with pointwise 1-type Gauss map of the first kind coincide with surfaces of revolution with constant mean curvature; and the right cones are the only rational surfaces of revolution with pointwise 1-type Gauss map of the second kind.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.1321-1321
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• 2017

Recently the attention to the 4th industrial revolution has been increasing. In the 4th industrial revolution era, the boundaries of physical space, digital space, and biological space are becoming blurred since the active convergence between various fields There are a lot of issues on the 4th industrial revolution such as artificial intelligence, internet of thing, big data, and cyber physical system. Accordingly, this study aims to analyse the main issues of the 4th industrial revolution. Data mining such as topic modelling method is used for the analysis. This study is expected to be helpful for the researcher and policy maker of the 4th industrial revolution.

• Journal of the Chungcheong Mathematical Society
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• v.25 no.4
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• pp.677-686
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• 2012

In this paper, we investigate the surfaces of revolution with light-like axis satisfying some equation in terms of a position vector field and the Laplacian with respect to the non-degenerate third fundamental form in Minkowski 3-space. As a result, we give some special example of the surfaces of revolution with light-like axis.

• Journal of Biomedical Engineering Research
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• v.35 no.2
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• pp.26-34
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• 2014

Little information is available about the characteristics in revolution gait of hemiplegic elderly, which is frequently represented in daily life. It is also hard to elucidate purely the characteristics due to hemiplegia because of no consideration of aging factors. The aim of study is to identify the alteration characteristics of lower extremity joint angles in both straight and revolution gaits together due to hemiplegia through comparing healthy with hemiplegic elderly. Following Institutional Review Board approval, twelve healthy and hemiplegic elderly were participated and the center of body mass (COM) and lower extremity joint angles were measured during straight and revolution gaits using a computer-aided video motion capture system. The results showed that the gait characteristics were generally altered in both straight and revolution gaits due to hemiplegia (p < 0.05). The gait characteristics were then different between the straight and revolution gaits each other. This study may be valuable by identifying for the first time the alterations of the lower extremity joint angles in both straight and revolution gaits due to pure hemiplegia through comparing healthy elderly with hemiplegic elderly.

• Journal of Korean Elementary Science Education
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• v.36 no.4
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• pp.405-427
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• 2017

This study aims to describe various teaching cases about 'earth revolution' in terms of PCK; knowledge of curriculum, knowledge of teaching strategies and knowledge of assessment. Based on these various cases we suggested PCK progressions about 'earth revolution'. For these, we recorded 'solar system and star' classes of nine elementary school teachers' in Kangwon, Gyeonggi, Gwangju, and Seoul. We adopted Lee & Lee (2016)'s topic-specific PCK framework to analyze the classes. As results, we suggested topic-specific PCK progression about 'earth revolution'. The results showed the upper anchor of the earth revolution class were exploring the reason of the change of constellation, finding the tendency of constellation change. These teachings were carried by the teachers' adaptive strategies. The upper anchor of the assessment was monitoring students' understanding during the whole class. The PCK progression about 'earth revolution' could help the teachers plan the earth revolution class, and reflect their own teachings.

• Journal of Korean society of Dental Hygiene
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• v.20 no.5
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• pp.665-674
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• 2020

Objectives: This study investigated the perception and educational needs of the health care professionals in wake of the fourth industrial revolution. Methods: This study was conducted among 115 students from the Department of Dental Hygiene and 122 dental hygienists from Gwangju and Jeonnam, from June 25 to September 20, 2020. The questionnaire consisted of one question on the perception of the concept of the fourth industrial revolution and two questions on the influence of the fourth industrial revolution. It contained a total of eight questions on the desired education hours and education expenditure. Results: The degree of perception of the concept and influence of the fourth industrial revolution was 3.20 for both dental hygiene students and dental hygienists; the average of the two groups was the same. Regarding the educational experience, 'no experience' was the most marked response among both dental hygiene students and dental hygienists and no statistically significant difference was observed (p>0.05). Conclusions: As demanded by the changing times, it is necessary to identify the differences in educational demands of the two groups, develop educational programs according to the fourth industrial revolution, as demanded by the changing times, and apply educational programs that fit the educational needs of each group.