• Journal of The Korean Association For Science Education
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• v.35 no.1
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• pp.73-84
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• 2015

In this research, two careers connectable with the contents of the curriculum of fifth to sixth grade elementary school students were selected among other promising future careers in biotechnology and medical engineering fields. 'Design-based promising future career STEAM program' was developed and its validity and effectiveness were verified. Reflecting recent issues, and complying with the STEAM standard (frame) instructional materials were developed through group deliberations for nine months, based on the achievement standards through an analysis of subject curriculum revised in 2009. This was prepared so that students are able to experience biotechnology and medical engineering related careers in a simulational form emphasized with creative design to make them prefer natural sciences and engineering careers and draw their interests and recognition of the relevant careers under the two disciplines. As a result of such application to STEAM Leader School students at the verification stage of the program, the contents and level of the program were verified suitable, receiving favorable reviews. And as a result of applying the developed program on other elementary school students, it was discovered that significant improvements were found in their career consciousness. Through this research, it was suggested that there is a need for a simplification of the curriculum content standards, a provision of 'standard for integration,' development of teachers' ability in reconstituting or organizing the STEAM and proceeding classes, continuous long-term support to see the effects of a policy or a program, and a reinforcement of career education integrated in the curriculum.

• Journal of the Korean Institute of Landscape Architecture
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• v.41 no.1
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• pp.12-20
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• 2013

This aim of this study is to support the value criteria that citizen evaluate themselves it when they found modern heritages in their town. To understand the changing of value criteria for the cultural heritage, we have to begin from early 20 century that were, however, diversified after 80's. As a result, early they evaluated with the architectural and aesthetic value mainly, after they evaluated with the social-cultural value and academical value, and nowadays they try to include the economical value and educational value. So this study rearranged and divided that value with the preservation and using value. The preservation value include the historical value, aesthetic value, social-cultural value and academical value, and the using value include the economical value and educational value. The criteria, however, don't have the equal importance, This study try to redefine relative importance score with paired comparison. As a result, Historical value is proved that most important criteria, but aesthetic value got the score lower than social-cultural value, and similar with academical values. And in using values, economical value and educational value got the low score. It means that if some researcher insist about the importance of economical value, it should evaluate lower than preservation values. This study insist that we have to include diversified values and that values have relatives score. Actually, now we mostly evaluate with the architecture and aesthetic values about modern heritage, so we are losing a lot of modern heritage. If we include the diversified values, social-cultural, academical and educational value, we can conserve our important modern heritage and revitalizing town with tourism of historical heritage.

• Journal of the Korean Society of Radiology
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• v.13 no.1
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• pp.111-118
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• 2019

Chest digital tomosynthesis has become a practical imaging modality because it can solve the problem of anatomy overlapping in conventional chest radiography. However, because of both limited scan angle and finite-size detector, a portion of chest cannot be represented in some or all of the projection. These bring a discontinuity in intensity across the field of view boundaries in the reconstructed slices, which we refer to as the truncation artifacts. The purpose of this study was to reduce truncation artifacts using a weighted normalization approach and to investigate the performance of this approach for our prototype chest digital tomosynthesis system. The system source-to-image distance was 1100 mm, and the center of rotation of X-ray source was located on 100 mm above the detector surface. After obtaining 41 projection views with ${\pm}20^{\circ}$ degrees, tomosynthesis slices were reconstructed with the filtered back projection algorithm. For quantitative evaluation, peak signal to noise ratio and structure similarity index values were evaluated after reconstructing reference image using simulation, and mean value of specific direction values was evaluated using real data. Simulation results showed that the peak signal to noise ratio and structure similarity index was improved respectively. In the case of the experimental results showed that the effect of artifact in the mean value of specific direction of the reconstructed image was reduced. In conclusion, the weighted normalization method improves the quality of image by reducing truncation artifacts. These results suggested that weighted normalization method could improve the image quality of chest digital tomosynthesis.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.12 s.159
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• pp.1747-1758
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• 2006

Rapid development of the information technology has influenced on the changes in every sector of human environments. One prominent change in retail market is an increase of electronic stores, which has prompted practical and research interest in the product and store attributes that include consumer to purchase products from the electronic shopping. Therefore many marketers are paying much attention to the criteria of evaluating clothing and web service on internet shopping malls. The purpose of this study is to examine differences of clothing and web service criteria of consumer groups (High-Involvement & High-Ability, Low-Involvement & High-Ability, High-Involvement & Low-Ability, and Low-Involvement & Low-Ability) who are classified into consumer involvement and internet use ability. The subjects of this study were 305 people aged between 19 and 39s, living in Seoul and Gyeonggi-do area, and having experiences in buying products on the internet shopping. Statistical analyses used for this study were the frequency, percentage, factor analysis, ANOVA and Duncan test. The results of this study were as follows: Regarded on the criteria of evaluating clothing, the low different groups had significant differences in the esthetic, the quality performance and the extrinsic criterion. Both HIHA group and HILA group showed the similar results. They considered every criterion of evaluating clothing more important, compared with other groups. Regarded on the criteria of evaluating web service related to the low different groups, there were significant differences in the factors related to the shopping mall reliance, the product, the satisfaction after purchase, and the promotion and policy criterion. Both HIHA group and HILA group showed the similar results as well. They considered every criterion of evaluating web service more important, compared with other groups. In conclusion, HI groups perceive relatively more dangerous factors which can be occurred during internet shopping. Therefore, internet shopping malls need to provide clothing that can satisfy the HI groups as well as make efforts to remove the dangerous factors on the internet.

• Journal of Educational Research in Mathematics
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• v.25 no.2
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• pp.207-223
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• 2015

This study aims to find ways for securing continuity of elementary mathematics curriculum and kindergarten curriculum. To do this, we considered the status of 'mathematical exploration' in Nuri curriculum and analysed the correspondence of content-domains and the continuity between Nuri curriculum for ages three to five and 2009 revised national elementary mathematics curriculum, based on the reconstructed achievement criteria. The result of these analyses reveals that the classification of five content-domains both for 'mathematical exploration' of Nuri curriculum and for 2009 revised national elementary mathematics curriculum coincides. We also recognized the reconstructed achievement criteria which are considered as reverse continuity or as discontinuity of Nuri curriculum and 2009 revised national elementary mathematics curriculum in all the five content domains. The former means being lower in levels or reduction in ranges from Nuri curriculum to elementary one. The latter means that some reconstructed achievement criteria are included in only one of the two curriculum. Based on these results, we suggested several ways to secure the continuity between Nuri curriculum and 2009 revised national elementary mathematics curriculum in the perspective of mathematics education.

• Journal of Korean Library and Information Science Society
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• v.43 no.4
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• pp.427-450
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• 2012

This study was to propose an improvement direction in statistical indicators of public libraries to collect objective data from such libraries. This improvement direction was made by deriving from countable factors at the library. These were selected from various parts of the library sectors, such as the library-related laws, public library standard of our country, and statistical indicators of IFLA and other major countries. Also The these statistical indicator was compared to the current statistical indicator of public library in Korea. The results will be able to develop new draft of statistical indicator, which can be used in understanding the present situation of public libraries.

• Journal of The Korean Association of Information Education
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• v.21 no.6
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• pp.733-742
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• 2017

In recent years, There is a growing demand for more instructional hours because of the shortage of classes required for the software education included in the 2015 Revised Practical Arts Curriculum of elementary schools. Therefore, the Korea Association of Information Education developed the Informatics Curriculums Standard Model from 2014 to 2016 to revise the next 2020 curriculum. However, the KAIE curriculum lacks linkages with secondary school informatics curriculum and is not composed of core concept-based achievement criteria so that teachers have a lot of difficulties in reconstructing and operating the KAIE curriculum. In this study, four core concepts of information ethics were selected by conducting Delphi survey focusing on the teachers of elementary schools. In other words, we selected the core concepts of the information ethics domain: internet etiquette, personal information protection, information life, and copyright protection. Also, we suggested 16 specific criteria for the core concepts.

• The Journal of the Acoustical Society of Korea
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• v.16 no.2
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• pp.58-65
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• 1997

A new automatic classification method with high and stable accuracy for time-series image data is presented in this paper. This method is based on prior condition that a classified map of the target area already exists, or at least one of the time-series image data had been classified. The classified map is used as a reference map to specify training areas of classification categories. The new automatic classification method consists of five steps, i.e., extraction of training data using reference map, detection of changed pixels based upon the homogeneity of training data, clustering of changed pixels, reconstruction of training data, and classification as like maximum likelihood classifier. In order to evaluate the performance of this method qualitatively, four time-series Landsat TM image data were classified by using this method and a conventional method which needs a skilled operator. As a results, we could get classified maps with high reliability and fast throughput, without a skilled operator.

• Journal of Industrial Convergence
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• v.21 no.2
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• pp.103-109
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• 2023

In Korea, software education is implemented from elementary school. As a representative software education tool for elementary schools, various chess games reconstructed based on the rules of Western chess games are being used. On the other hand, Yutnori, one of our traditional games, also includes elements of software education, so research on this is needed. Therefore, in this study, a Yutnori program based on computational thinking using an educational programming language, Entry, and a turtle robot was developed and its validity verified. As a result of the validity verification, the CVR value was higher than 0.7 in the degree of agreement with the subject achievement standard (3 questions), the appropriateness of learning materials (4 questions), and the possibility of class application (3 questions). Therefore, it could be judged that the learning program developed in this study has a high level of agreement with the subject achievement standards, appropriate learning materials, and high possibility of being applied to classes. In order to generalize this content in the future, the effectiveness will need to be verified, and experimental research will be needed to understand this.

• Korean Journal of Social Welfare Studies
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• v.41 no.3
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• pp.403-442
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• 2010

This study aims to configurate the contents of social policy strategies of European welfare states in the postindustrial society. The social policy strategy of the socialdemocratic regime consists of 'maintenance of statecentrism' and 'inclusion'. The contents of social policy strategy of the liberal regime are 'expansion of market forces' and 'increase of individual' self-responsibility'. The conservative regime adheres to the 'protection of male breadwinner; and 'income maintenance programs'. Due to these social policy strategies, the conservative regime has very high rate of unemployment. In the liberal regime, the high rate of poverty exists. In contrast, the socialdemocratic regime has low rates of unemployment and poverty and shows best social outcomes among the welfare regimes.