• Journal of The Korean Association For Science Education
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• v.7 no.2
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• pp.15-20
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• 1987

This study was undertaken to analyze the research trends of Academic Societies related to science education in Korea. In this study ten areas such as historical change of science education, processes of science learning, science curriculum, science instructional method, teaching-learning materials and equipment for science education, evaluation on science education, survey on Korean science education, policy and management of science education, natural science, and etc were chosen by the criteria for the analysis. All research papers in "Phisics teaching" published from 1982 to 1986, "Chemical education" from 1974 to 1986, "Biology education" from 1977 to 1982, "the Journal of Korean earth science society" from 1979 to 1986, and "Journal of the Korean Association for Research in Science Education" from 1978 to 1986 were analyzed. The findings of the study are as follows: 1. About 41% of all research papers are about science curriculum and science instructional method. 2. There are few research stuaies on teaching-learning materials and equipment for science education. processes of science learning. historical change of science education.

• Fire Science and Engineering
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• v.24 no.2
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• pp.1-8
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• 2010

Accidents cases about hazardous materials in university laboratories and other places are reviewed in this thesis. Then the curriculums that are currently operated in related educational institutions are researched. The researched educational institutions include 'National Fire Service Academy', local 'Fire Service Academies' that are located in Gyeonggi, Busan, Gwangju, Gyeongbuk, and Chungcheong and nationwide 'universities'. A questionnaire survey about hazardous materials with fire officers who are on educational courses in National 119 Rescue Services and local 'Fire Service Academies' is also performed and analyzed. The analyzed results suggest several implications. First, the education courses concerning hazardous materials and the experiment manual should be developed very soon. Second, hazardous materials related courses should be performed by lecturers who has degree in related majors. The third, to prevent the accidents about hazardous materials, the professionals should be trained more. In sum, the experiment centered education courses about hazardous materials should be achieved.

• Journal of Korean Elementary Science Education
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• v.33 no.3
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• pp.479-490
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• 2014

In this study, we investigated the characteristics of the reading materials in the elementary school science textbooks in order to obtain implications for the effective use of them. The reading materials in the elementary school science textbooks developed under the 7th and the 2007 revised National Science Curricula were analyzed. The criteria for classifying the reading materials were the type of theme, purpose, students' activity, the type of presentation, the type of images, the role of images, and readability. The results indicated that the reading materials in the 2007 revised science textbooks are more systematic than those in the 7th science textbooks in terms of their length and their distribution among energy, matter, life, and earth areas. It was also found that various types of reading materials are presented in the 2007 revised science textbooks covering new themes such as frontier science, job opportunity and career, and environment. In addition, the reading materials in the 2007 revised science textbooks introduce more visual images and the readability of them are also better than their counterpart. However, several limitations were still found to exist in the reading materials of the 2007 revised textbooks; most of them are non-inquiry and explanatory; most of the visual images are illustration and/or pictures. Educational implications are discussed.

• Nuclear Engineering and Technology
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• v.49 no.1
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• pp.178-188
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• 2017

To study the effects of zirconium (Zr) addition on the microstructure, hardness and the tensile properties of oxide dispersion strengthened (ODS) ferritic-martensitic steels, two kinds of 9Cr-ODS ferritic-martensitic steels with nominal compositions (wt.%) of $Fe-9Cr-2W-0.3Y_2O_3$ and $Fe-9Cr-2W-0.3Zr-0.3Y_2O_3$ were fabricated by the mechanical alloying (MA) of premixed powders and then consolidated by hot isostatic pressing (HIP) techniques. The experimental results showed that the average grain size decreases with Zr addition. The trigonal ${\delta}$-phase $Y_4Zr_3O_{12}$ oxides and body-centered cubic $Y_2O_3$ oxides are formed in the 9Cr-Zr-ODS steel and 9Cr non-Zr ODS steel, respectively, and the average size of $Y_4Zr_3O_{12}$ particles is much smaller than that of $Y_2O_3$. The dispersion morphology of the oxide particles in 9Cr-Zr-ODS steel is significantly improved and the number density is $1.1{\times}10^{23}/m^3$ with Zr addition. The 9Cr-Zr-ODS steel shows much higher tensile ductility, ultimate tensile strength and Vickers hardness at the same time.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2009.04a
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• pp.23-32
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• 2009

This thesis investigated accidents in relation with hazardous materials such as university laboratories in our country. In addition, this thesis investigated how the courses, hazardous materials, are managed, centering on Seoul, Gyeonggi, Busan, Gwangju, Gyeongbuk, and Chungbuk Fire Service Academy as well as National Fire Service Academy, and investigated how the courses, hazardous materials, are managed, centering on the courses in relation with fire service in universities, too. This thesis, also, performed a questionnaire survey on the education in relation with hazardous materials, objecting fire service officers on working who took education in respective provincial fire service academies and National 119 Rescue Services. This thesis analyzed the results of questionnaires, found problems in the current education about hazardous materials, and presented effective learning methods as the courses, hazardous materials, management methods, centering on new experiments. In addition, this thesis tried to present education plans with which people could prevent from the accidents in relation with hazardous materials.

• Proceedings of the IEEK Conference
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• 2004.08c
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• pp.690-692
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• 2004

This paper describes Web based education technique. We implemented a remote compile system with 8051 micro controller. It implemented the system in this paper so that a learner compiled 8051 control programs to the remote. Most big restriction subject is the control of the hardware in an engineering field even though it implements a remote education system. We download the Java Application to Java Web Start and execute in this system. In this paper the learner controls 8051 executions in Web to the remote and implemented so that we confirmed the action. The supplementary problem will be the construction of a remote education system which offeres existing text and sound information, flash animation.

• Journal of Korean Home Economics Education Association
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• v.15 no.1
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• pp.69-79
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• 2003

The Purpose of this study is to investigate the cognition and experience of sexual violence and to Present the influential factors of the cognition of sexual violence. The subjects were 835 high school students living in Kwangiu and Chonnam. The data analysis used Mean. Standard Deviation, T-test. F-test. and Multiple Regression Analysis The major findings is as follows : 1 There are meaningful differences in the experience of sexual violence between male and female adolescents. 2. There are meaningful differences in the cognition of sexual violence in sex. sex-role attitude. experience of obscene materials and sex education. 3. The variables which affect cognition of sexual violence is sex-role attitude, sex and experience of obscene materials that were explained about 10%.

• East Asian mathematical journal
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• v.26 no.2
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• pp.115-140
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• 2010

The purpose of this paper was to develop manipulative materials to teach the angle concepts and construct a teaching-learning program by using that. Furthermore, this study analyzed how does the program affect students understanding of the angle concepts. To check the effects of learning activities with manipulative materials on the understanding of an angle concepts, applied observation during class and write a mathematics journal writing, a description of students impressions at the end of the class and analyzed before and after test paper. We find that students approached the subject more friendly and knew well about the mathematical concepts by using materials. Furthermore, this activity helped that way to solve add and subtract of the angle, estimate ability, round angle concept, positive response in mathematics learning.

• Journal of the Semiconductor & Display Technology
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• v.4 no.3 s.12
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• pp.1-4
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• 2005

Silicon oxynitride films were deposited using ammonia as a nitrogen source via PECVD (plasma enhanced chemical vapor deposition) to study the physical properties of the films. Silane and nitrous oxide were used as silicon and oxygen sources, respectively. The composition of the silicon oxynitride films was well controlled by changing the ratios of the sources and confirmed by XPS. The silicon oxynitride films with high oxygen content showed bigger compressive stress and less refractive index, while the values of surface roughness were around 1 nm, irrespective of the variation of the source ratios.

• Journal of Nutrition and Health
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• v.46 no.4
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• pp.357-368
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• 2013

Tailored nutritional education is generally found to be more effective in changing behaviors and to be more fully implemented than a non-tailored equivalent. This study was conducted in order to develop tailored nutritional education materials on food additives in processed foods based on need and levels of knowledge of educational targets of elementary-school students in Seoul Metropolitan City. The focus group interview was conducted with six elementary-school nutrition teachers in order to gather information and to develop a tailored quantitative questionnaire for the survey. Based on the results from 138 nutrition teachers, all answered that education on food additives in processed foods for students is necessary and both teachers and students need to receive education regarding definition, safety, and use of food additives for each processed food, in the form of video, PPT, and teaching-learning plan. Nutritional education materials for two classes were developed using video clips (grocery shopping and cooking class) about food additives in processed foods, PPTs with activity papers, two teaching-learning plans, and school newsletters to parents. In conclusion, the current study warrants conduct of further studies short-term and long-term impacts and efficacy of tailored need-based nutrition education in promotion of healthy nutrition by conveying proper scientific knowledge regarding food additives in processed foods for elementary-school students.