• Communications of Mathematical Education
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• v.16
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• pp.149-162
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• 2003

수는 도대체 어디서 생겨났을까? 언제쯤부터 어떤 필요에 의해 인간이 사용하기 시작하였을까? 학생들이 이러한 호기심을 한 번쯤 가져본다면 얼마나 좋을까? 그러나 학생들은 십진기수법의 체계에 너무나 잘 길들어져 있기 때문에 그 고마움에 대해서 잘 모른다. 조류즈 이프라는 '신비로운 수의 역사'에서 인간 지성의 환상적 모험이 만들어낸 1, 2, 3, 4, 5, 6, 7, 8, 9, 0에 대하여 불의 사용이나 전기의 발명만큼이나 혁신적인 사건으로 취급하고 있으며 수의 역사는 인간의 보편적인 지성이 이루어 낸 영원히 무너지지 않는 바벨탑으로서, 인종차별까지 극복해낸 위대한 가능성임을 가슴 뿌듯하게 전해 준다. 따라서 본 연구에서는 이러한 인류 역사의 놀라운 소산인 수의 위대함을 깨닫기 위하여 세계 여러 문명들 속에서 숫자가 생겨난 연유, 그 표기 방법 및 그 이후부터의 발달 모습을 학생들이 탐구해 보게 하기 위하여 기수법과 수체계에 대한 지도 방법에 대하여 연구하고자 한다.

• The Journal of the Korea Contents Association
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• v.13 no.6
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• pp.9-19
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• 2013

In this paper, we develop a Spatio-Temporal graph as of a key component of our knowledge representation Scheme. We design an integrated representation scheme to depict not only present and past but future in parallel with the spaces in an effective and intuitive manner. An event in general occupies not only a space but a time. Hence a crucial premise for the simulation of virtual situations is to position events in the multi-dimensional context, that is, 3-D space extended by the temporal dimension. Furthermore an event tends to have physical, social and mental aspects intertwined. As a result we need diverse information structures and functions to model entities and relations associated with events and to describe situations in different stances or perspectives of the virtual agents. These structures and functions are implemented in terms of integrated and intuitive representation schemes at different levels such as Ontology View, Instance View, ST View, Reality View. The resulting multi-dimensional comprehensive knowledge structure accommodates multi-layered virtual world developing in the time to maximize the diversity of situations in the historical context. The viability of this knowledge representation scheme is demonstrated with a typical scenario applied to a simulator implemented based on the ST Graph. The virtual stage based on the ST graph can be used to provide natural contexts for situated learning or next-generation simulation games.

• Journal of Korean Home Economics Education Association
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• v.23 no.1
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• pp.143-157
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• 2011

It is a story through which people share their ideas and express their thoughts. Storytelling is temporally and spatially interconnected narration that consists of characters, background, its beginning and its conclusion. Furthermore, the story in storytelling is a means of delivering culture and history; thanks to the development of various media, delivering and exchanging the story are conducted in a variety of forms. Due to the technological advancement, the way storytelling is done has changed, which was a method called digital storytelling. This storytelling has been frequently used in education; that is, teachers utilize stories to communicate their thoughts. As receivers, students understand a shade of meaning and the role of language, thus reorganizing the important factors in the context of meaningful events. However, in practice the classes are so teacher-centered that the role of students are relegated to that of passive learners, thus debilitating the interaction between participants; as a result, this situation shows serious limitations in that it does not improve students' practical skills. Despite this situation, home economics has attempted to broaden students' practical knowledge and has enabled them to acquire procedural knowledge as its main objectives in the context of the entire life. To overcome this problem, this study attempts to demonstrate the lesson model utilizing the storytelling where the lively participation in the process and results of learning can increase learners' self-confidence and responsibility. This lesson model is believed to facilitate the communication among participants including teachers and students. Through this alternative teaching method, learners can participate in the process of learning so that they can acquire practical knowledge: this method can be a step-stone for further development. In conclusion, the development of curriculum and lesson plans should be encouraged.

• Convergence Security Journal
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• v.17 no.2
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• pp.137-144
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• 2017

Mental power, which is the intangible power of soldiers in our security situation, is very important recently. As for the history of war in East and West Korea, intangible combat power is regarded as a key factor that determines the rise and fall of the nation and the victory and defeat of the war. Recently, we are trying to improve the mental education in the military, but we still regard it as formal education, boring education, and time - consuming education. And continues to present the problem. The purpose of this study is to examine the problems of current mental education and to find out the direction of development of cognitive centered mental education. I would like to suggest a direction for fostering a strong group that is suitable for the diversification era.

• Journal of Practical Engineering Education
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• v.6 no.1
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• pp.1-7
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• 2014

The variable control in the inductive inference for the confirmation and verification when the experimental data are collected is studied by applying the principle of probability inference. The control in engineering experiments is to protect any effect by of intervening variable except primary independent variable on the dependent variable. By the special condition the possibility for developing a phenomenon will be maximized; otherwise, by the extraneous condition the possibility for developing a phenomenon will be minimized. By doing so, the control may provide insurance for the causal relationship between the certain prior event (independent variable) and the post-event (the dependent variable). Some experiments by using both elliptical trainer and tread mill under the variable control are performed in order to find the relations between the energy expenditure, the respiratory exchange ratio (RER), and the heart rate (HR) against the exercise speed.

• Proceedings of the Korea Society for Simulation Conference
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• 2000.11a
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• pp.208-212
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• 2000

최근들어 B2C, B2B로 불리는 인터넷 기반의 전자상거래 시스템의 성공적인 구축이 기업의 비즈니스 성공의 열쇠로 간주될 만큼 그 중요성이 커지고 있다. 본 논문에서는 상거래 행위에 개입하는 다자간의 비즈니스 플로우를 효과적으로 모델링하여 분석할 수 있는 DEVS(Discrete Event Modeling System)이론에 기반한 새로운 비즈니스 모델링/해석 방법론을 제안한다 제안하는 방법은 비즈니스 플로우를 기술할 수 있는 언어를 정의하고, 정의된 언어를 이용하여 기술되는 전자상거래에 개입하는 개체간 거래 행위를 DEVS 모델로 자동 변환하는 방법을 제시한다. 변환된 모델은 이산사건 시뮬레이션 환경인 rDEVSim++ 시뮬레이션 소프트웨어를 이용하여 실행된 후에 그래픽 인터페이스 환경에서 비쥬얼화되어 시스템의 동작 및 성능을 분석 가능하도록 지원한다. 위의 전과정을 포함하도록 개발된 소프트웨어는 기업의 비즈니스 모델 구축용으로 활용이 가능할 뿐만 아니라 전자상거래 관련 인력 양성을 위한 교육용 소프트웨어로도 활용이 가능하다.

• Review of KIISC
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• v.21 no.6
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• pp.24-41
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• 2011

7.7 DDoS공격과 3.4DDoS공격, NH금융전산망마비사건, 네이트 해킹 사건 등은 해킹이 개인적 문제를 지나서, 사회와 국가적인 이슈로 부상되고 있다. 중국은 대학에서 해킹 기법을 가르치고, 인민해방군에 국가일꾼이란 소명의식을 주고 있다. 북한은 지도자의 지시로 노동당과 북한군에서 사이버부대를 직접 교육 운영하고 있다. 미국은 외국으로부터 사이버 공격을 당할 경우 이를 '전쟁 행위'로 간주해 미사일 등으로 대응한다는 방침을 세웠다. 이와 같이 해킹은 국가사이버보안 정책에서 다루어져야 할 필요성이 있다. 본 연구에서는 해커의 변천, 해킹기술과 방법, 해킹 툴, 그리고 해킹 사례를 살펴본다. 또한 해킹 동향 분석에서 해킹기술 동향 분석, 해커(사람) 동향 분석, 해킹 지역(국가) 동향 분석을 통하여 해킹 인력의 조직화, 해킹 기술의 집적화, 해킹 조직의 집중화 연구를 한다. 그리고 국가사이버보안정책에서 해킹에 대한 '국자사이버보안법 시행령' 제정, 국가사이버보안 자문회의, 국가사이버보안 협력회의, 해킹 프로세스 전략, 해킹 전략 추진 방법론, 사이버협력국, 해킹 작전국, 인력 양성국, 해킹 기술국에 관한 저자의 개인 의견을 제안한다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.141-142
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• 2022

세계무역센터를 대상으로 발생한 9.11.테러 이후 세계 테러 동향은 하드타겟에서 경성타겟으로 점차 변화하고 있다. 경성타겟으로 목표 변화는 테러리스트의 접근성, 대상의 상징성, 미디어 집중성을 고루 갖추고 있어, 테러리스트들의 의사 전달이 용이하기 때문이다. 경성타겟으로 변화와 함께 미디어를 활용한 테러 교육으로 자생테러(외로운 늑대)도 증가하고 있다. 2022년 7월 8일, 일본의 다중이용시설인 나라현 야마토사이다이지 역에서 총기테러 사건이 발생하였다. 야마가미 데스야가 자생테러범은 개조한 사제 총기를 일본 전 총리 아베를 향해 발포하여 과다출혈로 사망에 이르게 하였다. 위 사례는 세계 테러 동향의 변화를 반영한 사건으로, 경성타겟을 목표로 한 자생테러 형태를 보여주고 있다. 본 연구에서는 국내 다중이용시설 테러 발생 시 우선적으로 고려해야하는 고위험 테러유형을 도출하고자, 우리나라와 국가 경쟁력이 비슷한 G7국가의 다중이용시설을 대상으로 발생한 테러사례를 통계적으로 분석하여 테러유형별 위험도를 도출하였으며, 다중이용시설을 대상으로 자행되는 고위혐 테러유형의 위협을 차단하기 위한 테러안전관리 대책의 개선사항을 제언하고 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.442-445
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• 2012

After the bombing of the Cheonan Vessel 2 years ago, military conflicts such as a missile launch became a serious issue. In fact, since especially military training has physical limitations, a research for military simulation education using CBT is needed. Using CBT in military-specialized schools, this paper looks into and analyzes the effects after teaching the functions for repairing artilleries and rifles through online simulation. In addition, the learning effects between the learning group using CBT for training artillery engineers and non-CBT learning group are analyzed.

• The Southeast Asian review
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• v.27 no.3
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• pp.1-47
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• 2017

This paper examines how democracy is being taught in secondary school level of Indonesian civic education. For this purpose, this study analyses the textbook contents concerning democracy. First, this study sets the freedom, the right, the unity and the stability as key words and analyzes the characteristic of describing democracy by looking at how each keyword is explained in the textbook. The result of analysis shows that democracy of Indonesia can be described as "Pancasila democracy" and textbooks have tendency to relatively emphasize 'the unity', and 'the stability' by differentiating themselves from "liberal democracy" and "liberalism." The freedom in textbook can be interpreted in the context of organic-statism that state and interests of state have the ascendancy over individuals. This viewpoint is based on the historical contexts of Indonesia. However, when textbook describes about Indonesian democracy and its values, they deal with contents of democratic principles, "the freedom of opposition", "the negative freedom", and natural rights. And the study interprets the existence of the two contrasting concepts - relative emphasis on the unity of state and the statement about the importance of individual rights and the freedom - in the textbook as a logical tension in transitional process of traditional organic-statism. Second, the study examines educational contents in accordance with the method of description in textbook. It has been found that there are logical tension and fallacy in describing the principle of fundamental concepts and applicate that concepts into Indonesia case. Also, when describing Marsinah and Munir case, there are some parts distorted and overlooked the facts. On the other hand, the gaps between the explanation in textbook and reality can be pointed out. This study which examined textbook and contents of the rights of the individual is an introductory study on textbook, education and democracy for development of Indonesia and their education.