• Tunnel and Underground Space
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• v.17 no.4
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• pp.301-310
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• 2007

The prediction of temperature in the workings for the propriety examination for the development of a deep coal bed and the ventilation design is fairly important. It is quite demanding to obtain precise thermal conductivity of rock due to the variety and the complexity of the rock types contiguous to the coal bed. Therefore, to estimate the thermal conductivity corresponding to this geological situation and complex gallery conditions, a computing program which is TemPredict, is developed in this study. It employs Artificial Neural Network and calculates the climatic conditions in galleries. This advanced neural network is based upon the Back-Propagation Algorithm and composed of the input layers that are acceptant of the physical and geological factors of the coal bed and the hidden layers each of which has the 5 and 3 neurons. To verify TemPredict, the calculated result is compared with the measured one at the entrance of -300 ML 9X of Jang-sung production department, Jang-sung Coal Mine. The difference between the results calculated by TemPredict ($25.65^{\circ}C$) and measured ($25.7^{\circ}C$) is only $0.05^{\circ}C$, which is less than the allowable error 5%. The result has more than 95% of very high reliability. The temperature prediction for the main carriage gallery 9X in -425 ML under construction when it is completed is made. Its result is $28.2^{\circ}C$. In the future, it would contribute to the ventilation design for the mine and the underground structures.

• Journal of Korean Tunnelling and Underground Space Association
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• v.17 no.3
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• pp.319-332
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• 2015

The pressure wave formed by the piston effects of the train proceeds within the tunnel when a train enters the tunnel with a high speed. Depending on the condition of tunnel exit, the compression waves reflect at a open end, change to the expansion waves, transfer to tunnel entrance back. Due to interference in the pressure waves and running train, passengers experience severe pressure fluctuations. And these pressure waves result in energy loss, noise, vibration, as well as in the passengers' ears. In this study, we performed comparison between numerical analysis and field experiments about the characteristics of the pressure waves transport in tunnel that appears when the train enter a tunnel and the variation of pressure penetrating into the train staterooms according to blockage ratio of train. In addition, a comparative study was carried out with the ThermoTun program to examine the applicability of the compressible 1-D model(based on the Method of Characteristics). Furthermore examination for the adequacy of the governing equations analysis based on compressible 1-D numerical model by Baron was examined.

• Cartoon and Animation Studies
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• s.51
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• pp.255-291
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• 2018

The domestic cartoon industry has went through rapid reformation since 2010 incurred by the emergence of webtoon. Most of the students in cartoon schools long to become webtoonists rather than published cartoonists. Cartoon education in middle and high schools rather focuses on webtoons. The growth of webtoons in private education, excluding college entrance examination, is even more promising. In the same train of thought, the number of webtoon private education institution has surged exponentially. Despite provincial colleges experiencing difficulty due to the lack of the student population, the competition for cartoon admission is intensifying. However, college education often maintains curriculums that do not relate to the on-site demands. Cartoon education in the past was mostly carried out through apprenticeship programs. However such programs began to disappear as college education became more common and as people embraced the emergence of webtoons. Instead collective education and author debut programs replaced the old system. Individualization of education is exacerbating as digital writing tools allow individual webtoonists to publish their works on a weekly basis. The background of the growth of webtoon education can obviously be explained by the growth of the market but there are aspects that can't be explained in such a simple manner. This study examines the current webtoon education status and discusses possible methodological and formation development measures for the future. The introduction examines the change in education and market. The main subject examines the current secondary schools and universities cartoon education and conducts a comprehensive study on the various education related changes. This study proposes future directions for universities by looking at the webtoon era and education changes in the conclusion. It also researched how the units of college cartoon education will fuse and deduct practical results via government policies.

• The Journal of the Korea Contents Association
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• v.18 no.4
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• pp.380-387
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• 2018

The purpose of this study is to examine the effects of extracurricular activities such as creative experiential activities, life guidance, and counseling activities on school satisfaction of students and parents who are educational demanders, and to suggest practical and policy alternatives to improve school satisfaction. For this purpose, 1,242 elementary, middle and high school students in Seoul and 1,023 parents were tested through analysis of t-test, and regression. Three main results were derived. First, extracurricular activities had a statistically significant effect on school satisfaction. Second, in general, parents in Korea are expected to emphasize the entrance examination-oriented curriculum with a high degree of education, but the higher the extracurricular activities of students and parents, the higher the school satisfaction. Third, there was a difference in school satisfaction by education class, but the higher the education level, the lower the school satisfaction was. It can be seen that extracurricular activities are needed to increase the educational satisfaction of students and parents who are educational demanders. In addition, it is necessary to reinforce the extracurricular activities to the high school which is the upper grade school now.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.56-67
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• 2020

Various studies have been conducted to identify the concept of creativity and enhance it effectively. Many advanced countries in the field of design have already expanded the scope of design education from specialized education to universal education and utilized such design education as a curriculum for promoting the creativity. Although education industry in China has been growing rapidly with the increase in the national income, the current educational contents have been mostly focused on the subjects/contents for an entrance examination, with little consideration of creativity promotion for children. Therefore, as an effort to promote creativity of Chinese children, the current study developed a design education program utilizing Chinese cultural contents and verified its educational effectiveness in terms of creativity promotion. The program was developed in the following process: 1) exploring the program development direction through an in-depth interview with parents; 2) deriving three lesson plans through an ideation session with some experts in art education for children; and 3) selecting a final lesson plan through experts/parents evaluation and developing a final textbook. A total of 10 children were educated with the developed textbook, and their levels of creativity before and after the education were comparatively evaluated using Torrance Tests of Creative Thinking (TTCT). The study results showed that the education program developed in the current study significantly affected the children's creativity, which would contribute to promoting the children's creativity, and also, developing a new creativity education program in the future. Additionally, it is expected that the research methods employed in this study, that is, developing a creativity promotion program using some cultural/local contents, could be usefully/widely applied in various fields of education.

• Journal of the Korean Society of School Health
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• v.11 no.1
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• pp.27-50
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• 1998

Adolescent health is considered to contribute to health promotion in the home and community in the near future as well as individual health. However, adolescent health has been neglected from education field because of competitive school education focused on the university entrance examination That's why I suggest in this study that we should pay much more attention to adolescent health condition and try to make It better, in terms of man-power development and life-health promotion for nation development The purposes of this study are as follows First, to look into a variety of adolescent health problems Second, to find out the situation and problems of current adolescent health promotion and school health education Third, to make an effort to find, based on the current situation, various developments of adolescent health promotion and school health education in terms of practical, political and environmental change There are used study methods as adolescent-related, school heath-related literature review and anlysis of statistical data The results and suggestions are as follows Teenagers have a great variey of health problems including most Important physical, mental and social developments Recently, chronic diseases, emotional problems, health-risk behaviors linked With adolescents are on increase The complicated disorders of physical, mental, social health rather than paricular aspects of health or health-behavior problems influence adolescent health problems adolescence is regarded as the period when most health-related behaviors are formed. Therefore, adolescent health promotion would he assured by developing the ability of controlling multi-dimensional health determinants in the early stage. Health promotion is a positive concept that each individual, family and community makes real efforts to improve their health To achive this, we need health educational, organizational, political and environmental supports. Adolescent health promotion in Korea has been systematically treated in the category of school health Current school health services have had lots of systemic, constitutional, administrative and educational flaws Accordingly, I'm concerned that we can afford to accept a variety of adolescent health needs However, I would say that if were not to make those flaws better, it's certain that Korean national competitive power and the quality of the lives of most Koreans Will he threatened someday We have to develop Comprehensive School Health Crriculum(CSHC) and set up its standards to Improve adolescent health. CSHC is an organizational and costant process. CSHC means an Important part of overall curriculums. In addition, I could say that it's an Important school health education acivity including current school health services-health care service and school health environment. In conclusion, in order to develop CSHC, we require school nurse's role changes, establishment and management of intergrated subject of health education, striking revision of school health law(or legislation of school health promotion law), reorganization of administration system, big changes in curriculum for school health educators.

• Journal of The Korean Association For Science Education
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• v.25 no.5
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• pp.603-609
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• 2005

Students obtain most concepts through textbooks, and teaching-learning activities between teachers and students. Accordingly, if science teachers already have misconceptions they will inevitably affect students' scientific concept. This study found many problems in teachers' cognition on the concepts of nuclear radiation. Because 12th grade physics II is classified as an optional subject in the 7th curriculum, teachers have few chances to teach it and, more importantly, have difficulty in teaching it because of the need to prepare students for the university entrance examination. The concept of radiation must be taught correctly because of its emergence in the 'environment' unit of 10th grade Science. Finally, results from this study can help science teachers teach these difficult concepts more correctly. In addition, results can also be useful in in-service retraining programs.

• Journal of the Korean School Mathematics Society
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• v.14 no.4
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• pp.443-458
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• 2011

There has been a lively discussion on improving Korean students' academic achievement and the imbalance in their recognition of the value of mathematics. In this context, there is a need for a program that enables the majority students who regards mathematics as a subject for the entrance examination to recognize the practicality and historicity of mathematics. Educational books on mathematics in everyday life or the history of mathematics are also expected to serve as an effective tool. In addition, Web 2.0 Map is another means of representing mathematics in everyday life and the history of mathematics in connection with the practical context. The active storytelling process in which mathematics in the practical context in mathematical educational books is represented in Web 2.0 Map is expected to help to understand in depth the practicality and historicity of mathematics. Nevertheless, mathematical educational books and Web 2.0 Map may lead to a considerable variety of outcomes and speeds if carrying out tasks depending on the student's competence and may have practical difficulties in being operated in class. These concerns, however, can be resolved through the creative activity programs adopted in conformance with the 2009 revised curriculum. Therefore, this study intends to develop a program for creating mathematical story maps through mathematical educational books and the Mashup of Web 2.0 Map in accordance with the process of developing activity programs. This study also intends to determine its effectiveness in enabling students to recognize the practical and historical values of mathematics.

• Journal of Gifted/Talented Education
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• v.11 no.3
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• pp.99-129
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• 2001

The purpose of the present study is to determine antecedents in the area of subject matters and to compare these factors between average student group and gifted student group, based on the implicit theory proposed by Sternberg(1993). The average group consisted of 350 primary school students (boy 172; girl 178) from a primary school and 380 middle school students (boy 221; girl 159) from a middle school in Taejeon Metropolitan City. The gifted group consisted of 181 primary school students (boy 130; girl 51) and 154 middle school students (boy 92; girl 62) from the Center for the Gifted Education of the Kong Ju National University. A questionnaire was developed by the authors. It consisted of 30 research questions related to reasons why they studied those subject matters hard. It took about 40 minutes to complete the questionnaire. Several exploratory factor analyses and confirmative analyses were conducted. The main results obtained were as follows: The subject matters all the students of the present study were English and Math. The main reasons why they studied those subject matters hard were interest, utility, competition, self-esteem, entrance examination, recognition, punishment avoidance, etc. A factor analysis revealed that, for the elementary school students, recognition and interest were factors for the average students, whereas knowledge acquisition was an unique factor for the gifted. Utility was common factor for both groups. A factor analysis revealed that, for the middle school students, knowledge acquisition was the main factor for the average students, whereas competition was the unique factor for the gifted. Recognition, interest, and utility were common factors for the both groups.

• 대한공업교육학회지
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• v.33 no.2
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• pp.26-43
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• 2008

The purpose of this study is to survey of specialists cognition to authorize credits for the same subjects in entering a department of the same area in college among technical high school graduates. Today with generalized college education, about 80% of technical high school graduates enter college. Therefore, authorization of credits for the same subjects is necessary to reduce educational waste in terms of articulation among technical high schools, junior colleges and universities. In this study, a survey was conducted with 100 specialists in technical education, including technical high school teachers, researchers, and professors at junior college or technical college in university, getting answers from 84 subjects (81.25%). The results of this research can be summarized as follows: First, it is valid to authorize credits for all practical subjects completed in technical high school when technical high school graduates enter the same department at college but most of junior college professor unsuitable response. Second, it is valid to authorize credits through its own prescribed test for the same subjects when technical high school graduates enter the same department of engineering at junior college or technical college in university but opposed 62.5% of junior college professor. Third, it is most of respondent valid to authorize credits for the same subjects if results of its own examination for authorization by university are at a fixed level or higher when technical high school graduates are admitted as a junior at the same department in technical college of university after graduation from the same department at junior college.