• Current Optics and Photonics
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• v.7 no.4
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• pp.463-470
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• 2023

Hydroxygraphene as a kind of functionalized graphene has important applications in composite, photoelectric and biological materials. In the present study, THz and microfluidic technologies were implemented to study the THz transmission characteristics of hydroxygraphene with different concentrations and residence times in magnetic and electric fields. The results show that the THz transmission intensity decreases with the increase in sample concentration and duration of an applied electric field, while it increases by staying longer in the magnetic field. The phenomenon is analyzed and explained in terms of hydrogen bond, conductivity and scattering characteristics. The results establish a foundation for future research on the THz absorption characteristics of liquid graphene based on microfluidic technology in different external environments. It also provides technical support for the application and development of graphene in THz devices.

• Journal of the Korean Home Economics Association
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• v.45 no.4
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• pp.1-16
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• 2007

The purpose of this study was to explore the identity of home economics(HE) education by assessing perceptions of HE teacher, students, and general adults regarding the images and characteristics of HE education. Respondents in this study were 234 HE teachers, 505 students, and 264 general adults. Questionnaires were collected through both online and offline. The image and the characteristics of HE education were the factors of the identity that were also the byproducts of HE education operation of the past and present, and had the characteristics in changing in accordance with the change of time. The current image of HE education was shown to positive recognition as the curriculum helpful to the actual living and future living for the HE teacher, students, and the general adults. For the HE teacher, it had strong emotionally warm image similar to the image of 'home', and it was connected to the curriculum image to be acknowledged as good problem solving teachers in terms of competence and conservative image. However, on the images of the HE curriculum and HE teacher, the HE teachers had the most positive recognition, and on the image of the HE curriculum, the students had the most negative recognition while the image of the HE teacher, the general adults had the most negative recognition. The general adults among the three groups recognized the HE curriculum as the most technical oriented curriculum while the students recognized as interesting curriculum, curriculum contributing on society. In the meantime, for the characteristic of the HE education, the HE teachers recognized that it had weak female curriculum characteristics and strong living functional curriculum characteristics, and the practical curriculum characteristics would be important in the future. Accordingly, the identity of the HE education formulated might be considered as the practical curriculum that was helpful to problem solving in actual living of the family and family members with the connection to the concept of 'home'. However, depending on the definition on implication of practice and issue of actual living, the characteristics and appearance of the HE education had been changed and might interpret as changing according to the above.for the fertility policy and the methods for the estimation of the child cost were suggested based on the results.

• Journal of Agricultural Extension & Community Development
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• v.11 no.1
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• pp.1-19
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• 2004

The objective of this study was to find a linkage of ideological background between agricultural extension education and lifelong education. This study was conducted by analyzing the studies related to agricultural extension and lifelong education. Review of literature and documents was main methods of this study. The study reviewed and analyzed the concepts, characteristics and ideology of lifelong education, and presented some general characteristics of lifelong education in the context of educational ideology. As a result of the study, the following five characteristics of lifelong education in the context of educational ideology were presented; 1) lifelong education is the supreme concept of education and includes all kinds of education, 2) lifelong education is the future direction of educational ideology and philosophy rather than a kind of educational practice, 3) lifelong education means the security for a right of learning through the entire life-span of an individual, 4) lifelong education has the innovative function of the existing situation of education; viewpoint, contents, and methodology of learning, 5) Lifelong education runs ultimately towards a 'learning society'. Agricultural extension and lifelong education shared the similar ideological background in general, and have the similar basic philosophy. The ideology and philosophy of lifelong education should be reflected into the ideology of agricultural extension to broaden the perspectives of agricultural extension in the future.

• Journal of Fisheries and Marine Sciences Education
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• v.25 no.6
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• pp.1389-1407
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• 2013

The purpose of this study was to inquiry of perception on the characteristics of applying students for vocational education division in the CSAT(College Scholastic Ability Test) and what were characteristics of main group by industry department teachers of specialized vocational high school. Therefore, it was highly desirable that researchers to survey what were change on the characteristics of applying for vocational education division in the CSAT and what were prospect on applying group for vocational education division in the CSAT. The survey included 100 industry department teachers of specialized vocational high school on 9 regions from Korea. The analysis of survey results were by regions, industry department teacher's career of specialized vocational high school. The results were as follows. Main reasons of reducing on applying for vocational education division in the CSAT after the class of 2010 was policy of employment reinforce in specialized vocational high school by government. The next reason was increasing students who want the next stage of education not requiring results of the CSAT. Leading group of reducing on applying for the CSAT after the class of 2010 was fine grade group. Prospect on number of applying students for vocational education division in the CSAT was maintenance on the minimum number of applying students for the CSAT, after lasting of reducing state.

• Journal of Korean Elementary Science Education
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• v.34 no.2
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• pp.210-223
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• 2015

The purpose of this study was to analyze the stresses of teachers for elementary science class. To do these, the Science Teacher Stress Inventory has been developed the Science Teacher Stress Inventory, which consisted of 45 stress factors with subcategories such as student characteristics, teacher characteristics, expertise of science education, school environment, and administrative procedures. 120 teachers for elementary science class have participated in this questionnaire survey. The results of this study are as follow: First, stress from teacher characteristics is perceived as having more stress factors than five stress factors (student characteristics, teacher characteristics, expertise of science education, school environment, and administrative procedures). but all of the five stress factors was under normal. The detail question of stress such as 'Having to guide educational guidance and course in life education', 'Having to cope with the demand of new curricula', 'Pace of the school day is too fast', 'No time to attend training of the experiment (preliminary experiment)', 'Not enough time to complete lesson preparation and marking', 'Having to cope with non-teaching delegated duties', 'Fear of getting injured as a result of lab accidents' are perceived as having a lot of stresses. Second, there were not statistically significant differences in their personal variables such as gender, the course of high school. but there were statistically significant differences in their personal variables such as whether elementary subject exclusive science teacher, career in education experience, teaching grade. Third, coping ways of stresses are active support for better science teaching conditions, training of the experiment for expertise of science education, developing a workbook for science class.

• The Journal of Korean Association of Computer Education
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• v.13 no.2
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• pp.15-23
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• 2010

Computational Literacy education is being required in current digital age, but the educational strategy of it is lacking. In traditional education, instructors have been teaching by considering learners' characteristics for effective learning. It is necessary to investigate their characteristics for applying this method to computational literacy education. Therefore, we taught programming that is main area on computational literacy, and analyzed learners' characteristics focused on Felder's learning style and multiple intelligence. That is, we taught 194 university students computational literacy with scratch that was one of the popular educational programming languages, and analyzed the relation among learning style, multiple intelligence and the students' programming performance. Also, we found considerations through comparing students' characteristics with experts' ones.

• Korean Journal of Human Ecology
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• v.9 no.2
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• pp.189-203
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• 2000

This study was proposed preschooler consumer education curriculum to give effect at a preschooler education institute and was investigated into relations with practical degree, needful degree and demandable degree according to preschooler teacher's characteristics. The survey of this research was conducted by means of questionnaire with 548 teachers of nursery and kindergarten in Seoul. Also it was carried out two stages cluster sampling, personal interview. the statistics used for data analysis was frequency, mean, percentile, t-test, one way ANOVA, Pearson's r, and regression using the SPSS/PC+ program. The results and findings of this study were summarized as follows. 1) Practical degree on total preschooler consumer education was looked into being low, also needful degree on total preschooler consumer education examined being very high. 2) Demandable degree on preschooler consumer education differed significantly according to preschooler education institute, preschooler's age in charge. 3) Practical degree on preschooler consumer education correlated positively to needful degree on preschooler consumer education. And practical degree on preschooler consumer education correlated negatively to demandable degree on preschooler consumer education. 4) Preschooler teacher's age and career had affected to money management in practical degree by regression analysis used to dummy variable related with characteristics of preschooler teacher.

• Journal of Families and Better Life
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• v.14 no.2
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• pp.61-76
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• 1996

In this study it was assumed that planning was composed of three activities -resource assessment standard setting information seeking and implementing was composed of money investment and time investment, Two variable groups which were assumed to be related with planning and implementing were household characteristics and housewife's value characteristics. Money investment to children's education was significantly affected by income, net wealth of household instrumental value of eduation and information seeking about private education. The variables assumed to affect time investment to children's education were instrumental value of education information seeking about private education and expected education level.

• The Korean Journal of Mycology
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• v.49 no.1
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• pp.101-108
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• 2021

We collected the ascomata of Tuber species from the rhizosphere of Quercus dentata in Danyang, Korea. We observed the morphological characteristics of ectomycorrhizal roots and ascomata, and identified the species based on the results of the phylogenetic analysis conducted using the DNA sequences of an internal transcribed spacer, a large-subunit rDNA, translation elongation factor 1-α DNA (TEF1), and MAT. Finally, we identified the fungal species as Tuber himalayense B.C. Zhang & Minter, which has not been recorded previously in Korea. We evaluated the morphological characteristics and conducted phylogenetic analysis of the ascoma and mycorrhiza (associated with Q. dentata) of T. himalayense.

• Journal of Korean Elementary Science Education
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• v.40 no.2
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• pp.191-209
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• 2021

This study analyzed how characteristics of process-focused assessment are implemented in the distributed process-focused assessment examples in elementary school science education. To this end, through a review of previous studies, the analysis perspectives on the characteristics of the process-focused assessment were extracted into six categories. Using the analysis framework, it was described how process-focused assessment examples in elementary school science education developed by metropolitan office of education reflected the characteristics of process-focused assessment. As a result of the study, the characteristics of process-focused assessment were often formally reflected in sample materials. For example, there was a lack of skills on how to effectively integrate instruction and evaluation in practical terms. In many cases, feedback simply induced a recall of a learned concept or simply guides a related scientific concept. In some cases, the characteristics of process-focused assessment did not appear prominently in the sample materials. Also the developed sample materials were divided into the same type as the existing science and performance assessment questionnaire, a narrative·essay type, and a type similar to experimental workbook.