• The Mathematical Education
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• v.42 no.2
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• pp.87-109
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• 2003

This paper aims to review the overall development of constructivist approaches in science education research from two different perspectives, that is a summary of the past development in science education in general and a report of the outline of a recent research project on students' physics misconceptions in particular. In the summary of the past development of constructivist science education the introduction of constructivism as well as its psychological and philosophical backgrounds are briefly reported. Then main findings of the researches of constructivist approach are discussed in terms of the features of students' misconceptions, of the ways of effective conceptual change, of the implications toward school science education, and of the criticisms given to the constructivist approach. In the report of a recent development in addition to its background necessity and implications, the research structure and the format of the data analysis of the study on the map of students' physics misconceptions are presented. It is particularly emphasized that the practical informations and suggestions for actual teaching of school science, such as the database(DB) of students' misconceptions and teaching guides, are of most practical and effective values in order to maximize the advantage of the constructivist approach to science education.

• The Journal of Korean Association of Computer Education
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• v.8 no.5
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• pp.109-118
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• 2005

In this paper, we present a music retrieval system that compares the geometric structure of a melody specified by a user with those in a music database. The system finds matches between a query melody and melodies in the database by analyzing both structural and contextual features. The retrieval method is based on the geometric hashing algorithm which consists of two steps; the preprocessing step and the recognition step. During the preprocessing step, we divide a melody into several fragments and analyze the pitch and duration of each note of the fragments to find a structural feature. To find a contextual feature, we find a main chord for each fragment. During the recognition step, we divide the query melody specified by a user into several fragments and search through all fragments in the database that are structurally and contextually similar to the melody. A vote is cast for each of the fragments and the music whose total votes are the maximum is the music that contains a matching melody against the query melody. Using our approach, we can find similar melodies in a music database quickly. We can also apply the method to detect plagiarism in music.

• Archives of design research
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• v.12 no.4
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• pp.283-292
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• 1999

As network and multimedia service has increased in educational environment, it is needed to study on digital system based educational scenarios, especially in art and design departments in which visual educational materials mainly used. Therefore, this study was conducted with three objectives: first, developing components of design database and their classification system, second, developing contents of database for fundamental form education in design, and third, developing application method of database. According to these objectives, the secondary research was implemented into two directions; the analysis of classification categories of design, and the analysis of contents and process of fundamental form design education. From the secondary research, it was found that design database should have a flexible structure with flexible components as well as fixed components to include subjective and aesthetic assessment. In the end, the application methods and user interface system of design database was developed based on design educational scenarios.

• Journal of the Korean Solar Energy Society
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• v.30 no.3
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• pp.65-70
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• 2010

As for the present wind power industry, most of the computerization for monitoring and control is based on the traditional development methodology, but it is necessary to improve SCADA system since it has a phenomenon of backlog accumulation in the applicable aspect of back-data as well as in the operational aspect in the future. Especially for a system like offshore wind power where a superintendent cannot reside, it is desirable to operate a remote control system. Therefore, it is essential to establish a monitoring system with appropriate control and monitoring inevitably premised on the integrity and independence of data. As a result, a study was carried out on the modeling of offshore wind power data-centered database. In this paper, a logical data modeling method was proposed and designed to establish the database of offshore wind power. In order for designing the logical data modeling of an offshore wind power system, this study carried out an analysis of design elements for the database of offshore wind power and described considerations and problems as well. Through a comparative analysis of the final database of the newly-designed off-shore wind power system against the existing SCADA System, this study proposed a new direction to bring about progress toward a smart wind power system, showing a possibility of a service-oriented smart wind power system, such as future prediction, hindrance-cause examination and fault analyses, through the database integrating various control signals, geographical information and data about surrounding environments.

• Journal of the Korean Dietetic Association
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• v.9 no.2
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• pp.159-171
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• 2003

The food composition tables are frequently used to health and nutrition practices. But it is difficult to find out food exchange lists with food exchange groups in the food composition table. Over 2500 items and many kinds of nutrients are in the food composition table. But now food exchange lists are used a few foods. The internet demands the users needs for obtaining more food exchange lists and nutrient information from food composition. This basic study is to solve the users need and the supply more efficient and effective manipulation system for e-food exchange database construction and search system:ENECC/e-food exchnage(E-Nutrition Education and Couseling Center/e-food exchange). This paper introduces the food exchange database construction and search system(ENECC/e-food exchange) using the formula which calculates the food exchange quantity of 6 food exchange groups and added one extra groups(alcohol) based on the internet. The ENECC/e-food exchange database is basically based on the 6th food composition table(2001) of the National Rural Living Science Institution in Rural Development Administration, Korea. The e-food exchange database are consisted of 2,261 foods in 6 basic food groups and one extra groups by using ENECC calculating formula. Also, the e-food exchange database has the proximate composition, mineral and vitamin content such as energy, moisture, protein, fat, carbohydrate, ash, calcium, phosphorus, iron, sodium, potassium, retinol equivalent, retinol, â-carotene, thiamin, riboflavin, niacin, ascorbic acid, refuse per 100g of each food.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05d
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• pp.797-801
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• 2002

Information network technologies introduce a new education environment. Cyber education is growing rapidly as a field of practice especially in distance education system. The development of multimedia environment based on such technology as graphics, image, voice, and video, personal computer systems use has become the media for interactive teaching-teaming service. These features have made integrated multimedia education feasible. This research suggested a direction for the development of an interactive distance education system. I have developed an education system which cooperate problem bank and learning system. This system support arbitration of the relative difficulty in the problem bank database. An ongoing version of this research was evaluated. Those findings reveal several factors that influence how the proposed system can be tailored to the students' perspectives in order to come up with the enhanced version of this system.

• 한국정보교육학회:학술대회논문집
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• 2004.08a
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• pp.55-62
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• 2004

다가올 21세기를 한 마디로 규정짓는다면 정보화 사회라고 말할 수 있다. 이러한 정보화 사회는 국가의 힘과 부, 개인의 삶의 수준이 기술, 정보, 지식, 문화 등 지식 자산의 수준에 의하여 결정된다. 지적 자산의 수준은 본질적으로 개개인의 학습 능력과 창의력에 의존하고, 더 구체적으로는 정보를 획득하고 평가하는 능력, 정보를 조직하고 관리하는 능력, 정보를 해석하고 유통 활용하는 능력 등의 함양 여부에 달려 있다. 우리나라의 교육에서도 정보화 교육이 이루어지고는 있지만, 아직까지 초보적인 수준을 벗어나지 못하고 있다. 특히 각 교과 활동에서 정보를 수집, 분석, 유통, 활용하는 능력을 신장시키기 위한 다각적인 노력을 기울이고 있다. 이 논문에서는 초등학교에서 데이터베이스 개념활동을 통해 정보소양능력을 기르는 방안을 제안하고자 한다. 정보소양 능력을 향상하는 방안으로 기존의 컴퓨터를 통한 데이터베이스의 사전 지식이나 이론의 도입 없이 데이터베이스 개념을 통한 활동 중심적인 프로젝트를 수행함에 따라 자연스럽게 정보소양능력이 향상되는지 알아보고자 한다.

• The Journal of Information Technology and Database
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• v.8 no.2
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• pp.71-90
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• 2001

As the Internet spreads into every corner of our lives, the paradigm of education has changed. With this change, many educational institutions, including universities and companies formed a consortia to provide cyber-education. Currently there are 9 such institutions that are approved by the Korean government to grant degrees to the qualified learners. But, the educational environment of them seems to be in bad shape, the quality of education is questionable. So, in this paper we first surveyed the literature to determine the potential factors that affect the effectiveness of cyber-education and then we analyzed the questionnaire prepared to investigate the relationship between those factors and effectiveness. We hope the findings from this study provide some insights into how the effectiveness of cyber-education can be strengthened.

• The Mathematical Education
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• v.33 no.2
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• pp.155-166
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• 1994

The purpose of this study is to determine thy type and amount of math education related information that is available on the worldwide Internet computer network and to summarize the ways of using network to its fullest potential for mathematics education research. The survey and analysis of the network shows that a great deal of information covering a broad range of subjects regarding mathematics education exists on the network. The type of information ranges from simple mathematics study plans to the complete mathematics education assessment database for grade school and high school students in the U.S. In addition to the wide ranging information, the network is also valuable as a communication link for exchanging ideas and obtaining feedbacks from educators and students around the world. Through the use of electronic mail, the Internet offers the ability to communicate with over 20 million users around the world.

• Journal of Families and Better Life
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• v.29 no.5
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• pp.51-73
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• 2011

Korean society with low fertility rate and high aging rate crisis has been tried very hard to find out alternatives to solve these social problems. These efforts resulted in increasing the development of education programs for the elderly. The education for the elderly have been development in various different academic fields. Therefore, this is the time to establish database for education programs which developed so far. The purpose of this study is to examine research trend in the field of education programs for the elderly in Korea. For this purpose, 62 education programs for the elderly which developed so far were analyzed. The results of this study were as followed. The topics of education programs for the elderly were divided into the following : a marriage enrichment programs for the elderly married couples, leisure programs, death education programs, health education programs, economic education programs, education programs for grandparents raising their grandchildren, etc. Based on the results of this analysis, the tasks of future research about education programs for the elderly were presented.