• Journal of Korean Home Economics Education Association
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• v.24 no.2
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• pp.1-15
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• 2012

This study investigated the causes of the dislikes of Practical Arts education of elementary school students. This study was to provide the foundation for the proposition of alternative plans to make more students participate pleasantly and actively in Practical Arts classes. Data were collected via an open-ended survey from 273 elementary school students and through telephone interviews with five elementary school teachers. The data were analyzed inductively by NVivo. After the analysis of the student data, the analysis of the teacher data was conducted according to the variables from the student data. The results of this research were as follows: First, with regard to the causes of the students' dislikes of Practical Arts classes, extrinsic factors such as instruction management, instruction content, teaching facilities and equipment, and teacher characteristics were elicited. Intrinsic factors included complaints about failing to meet students' expectation from Practical Arts, negative perception of Practical Arts, the interest, competency, and fear of the students. Secondly, the students who learned Practical Arts from the Practical Arts specialty teachers gave more answers on instruction management, instruction content, and teacher characteristics than the students who learned Practical Arts from their homeroom teachers did. The students who learned Practical Arts from their homeroom teachers answered that they disliked Practical Arts because of lack of lab facilities and practice than their counterparts did. The analyses of teacher data provided the reasons and contexts of the dislikes of the students such as teaching facilities and equipment, and the anxiety of the students.

• The Korean Journal of Archival Studies
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• no.78
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• pp.5-42
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• 2023

Since presidential overseas trips are carried out as the head of state representing the Republic of Korea, the resulting records of such trips have high academic and historical significance and value both in contemporary times and for future generations. This study analyzes the status of production and service of overseas trip records, focusing on whether the records of the president's overseas trips are being produced properly and provided sufficiently to the public, and examines development plans for improvement. Currently, as a result of examining a total of 282 overseas trips provided by the Presidential Archives website, it is difficult for users to understand which records are being produced for even the basic records regarding the trips are not posted. In addition, the website is provider-centered, making users feel alienated rather than being considered in terms of search and provided records. In this study, for the production of high-quality overseas travel records, the "Presidential Overseas Trip Records Production Guidelines" established during the 'Participatory Government' will be supplemented, improved and applied. This archive policy will not be subject to any external variables, including changes in the government, and is suggested that it be consistent and unaffected. In addition, in order to improve the service provided, the following is proposed: first, provision of 'comprehensive information' that allows users to understand the overall context of the trip; second, use of the "file-record" layer and hyperlink function; third, a system that allows the stages of production and service of overseas trip records to be interconnected. In order to carry out these tasks, it would be essential to establish and operate an organization dedicated to records, such as the Secretariat of Archives and Records Management during the 'Participatory Government' period.

• The KIPS Transactions:PartD
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• v.12D no.6 s.102
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• pp.889-898
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• 2005

Recently, one of the most challenging problems is to compose web services dynamically, that is, on demand. A number of researchers have been considerably interested in the dynamic web services composition. However, while most of them focused on the semi-automatic web services composition with a human controller, very little attention was devoted to the full automation of this process. This paper primarily focuses on the automatic web services composition techniques. The main idea is to implement an automatic web services composition system using web ontologies to realize the semantic web and workflow technologies to play a major role in E-businesses. In this paper, we propose a matching algorithm for web service discovery and present an approach based on the use of ontologies to facilitate the interoperability of web services. Finally, we describe a workflow execution plan to support the automatic web services composition, and an experimental study that shows the high performance of our system.

• Journal of The Korean Association of Information Education
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• v.11 no.1
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• pp.79-89
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• 2007

Considering the continuous increase of teenagers' Internet use and the high rate of their participation in online communities, educators need to devote efforts to minimize the negative function of teenagers' Internet use and to guide them to experience positive aspects of Internet. Through activities in online communities, teenagers can experience various socialities and explore their self-consciousness. However, on the other hand many communities do not provide teenagers with considerate care. This may cause conflict in their sense of value and mislead them. Through this study, online learning community is designed and developed, which can reflect teenagers' various needs and connect their needs with learning experiences. The community consists of the following categories: 'about e-Tivity'(community vision, general information, list of activities, Q&A), 'activity space for teens'(event hall, data park, e-Tivity center), 'administrative space for teachers and managers'(research room, management room), and 'teen's private space'(my room, my avatar).

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1455-1463
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• 2015

If the industrial control system is infected by malicious worm such as Stuxnet, national disaster could be caused inevitably. Therefore, most of the industrial control system defence is focused on intrusion detection in network to protect against these threats. Conventional method is effective to monitor network traffic and detect anomalous patterns, but normal traffic pattern attacks using MITM technique are difficult to be detected. This study analyzes the PROFINET/DCP protocol and weaknesses with the data collected in real industrial control system. And add the authentication data field to secure the protocol, find out the applicability. Improved protocol may prevent the national disaster and defend against MITM attacks.

• Journal of The Korean Association of Information Education
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• v.1 no.1
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• pp.62-73
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• 1997

Open education can be defined as education which apply rule of respect, rule of freedom, rule of individual instruction, and rule of environment. The purpose of this study was to look into the present condition of individual instruction, to find the problems of instruction, especially ill practical arts, and then to suggest the improvement plans on the problems. In order to solve the problems, after briefly reviewing theoretical background of open education, we suggested a CAI(Computer Assisted Instruction) program which was made by Chinju National University of Education and KEDI(Korean Educational Development Institute). And then we applied the program to the classes of the 4th grade of elementary school. In this thesis, we didn't analyze the result of the questionnaire or interview, however, it is believed that using CAI program is a adaptive lesson method of individual instruction.

• Journal of Energy Engineering
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• v.12 no.1
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• pp.42-48
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• 2003

In system planing and operation, voltage and reactive power control is very important. The voltage deviation and system losses can be reduced through control of reactive power sources. In general, there are several different reactive power sources, we used switched shunt capacitor to improve the voltage profile and to reduce system losses. Since there are many switched shunt capacitors in power system, so it if necessary to coordinate these switched shunt capacitors. In this study, Genetic Algorithm (GA) is used to find optimal coordination of switched shunt capacitors in a local area of power system. In case study, the effectiveness of the proposed method is demonstrated in KEPCO's power system. The simulation is performed by PSS/E and the results of simulation are compared with sensitivity method.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.758-764
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• 2010

This study showed effective and new applicative direction of CRM of medical management after arranging CRM researches, measuring CRM activity and the results of medical institutions and clearing factors having an effect. In other words, 'Human Factors' variables and 'Physical Factors' variables have an effect on the result of CRM. 'Human Factors' variables have an effect on the qualitative result and 'Physical Factors' variables have an effect on the quantitative performance. In more strategic CRM continuum, Human Factors have a significant effect on the whole performance of CRM. And in more tactical, CRM continuum Human Factors and Physical Factors have significant effect on the whole performance of CRM. Consequently, The key point is grasp of what characteristics exist in CRM between strategic level and tactical level. This provides the foundation for the variables in marketing practice.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.314-318
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• 2018

This study is influenced by the artificial intelligence based IOT which is emerging in the fourth industrial age. Also, at the time when the elderly population is soaring in the age of aging, the new knowledge and information literacy ability of the elderly population will be focused on the adaptation of the elderly people due to the ICT education effect. The purpose is to find out. The results of this study are as follows. First, it can be concluded that IT education has positive effects on digital capacity and quality of life of elderly generations and on actual IOT - based web mobile use. However, there were differences in competency depending on the existence and duration of information education and the division according to various criteria such as occupation and education, and accordingly, the provision of customized education in the fourth industrial age and quality of life, It also provides a comprehensive discussion and course presentation in the direction.

• Journal of Korean Society of Rural Planning
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• v.21 no.2
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• pp.91-102
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• 2015

한국은 2050년까지 주요 선진국 중에서 고령화가 가장 심각한 사회로 전환되게 될 것으로 예상된다. 기대여명의 증가와 저 출산은 고령화를 더욱 악화시키며, 이는 심각한 사회문제로 발전하게 될 것이다. 이와 같은 문제를 해결하기 위해 한국정부는 2008년에 도시지역에는 주택연금제도를 도입하였으며, 2011년에는 세계 최초로 농촌지역을 대상으로 농지연금제도를 도입하였다. 그렇지만 이와 같은 제도는 설계 당시부터 복지상품이라기 보다는 장기적으로 손실과 수익의 균형에 초점을 둔 금융상품으로 개발되어 실질적으로 노인들에게 크게 인기를 얻지 못하였다. 따라서 본 연구는 농지연금제도를 활성화시켜, 농촌노인들에게 보다 더 많은 혜택을 주기 위해 지역 토지시장을 감안하여 지역별 농지가격상승률을 예측하고 연금액을 산출하였다. 또, 지금까지 사용한 년 혹은 분기별 감정가 대신에 월별, 지역별 실거래 가격을 모형에 적용하여 지역토지시장, 고령화 수준 등 지역 여건에 부합하는 연금액을 산출하였다. 할인율자료도 가장 안정적인 3년 만기 국고채 수익률을 활용하여 미래농지가격을 예측하고, 이를 유동화하여 월 생활자금으로 지급되도록 하였다. 특히 농지규모가 가장 많고, 고령화 정도가 심각하여 농지연금의 잠재적 수요가 가장 높을 것으로 예상되는 경상북도와 전라남도를 사례지역으로 선정하고, 이를 전국평균과 비교하여 지역적인 차이도 함께 분석하였다. 이를 위해 농지가격 및 이자율 시계열 자료의 안정성을 검정하고, 장기농지가격을 예측하였다. 이를 활용하여 경북, 전남, 전국의 노인들의 월평균 지급액을 추정하였다. 분석결과 정책의 잠재적 수요가 가장 높은 두 지역이 가장 낮은 금액이 지급되는 것으로 추정되어 이는 또 다른 지역불균형을 초래할 수 있는 것으로 평가되었다.