• School Mathematics
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• v.13 no.2
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• pp.323-343
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• 2011

The study of 2011 education course revision proposal suggests that middle school level function shall be taught with emphasis on its role as tool to understand the situations of actual world, and the concept shall be extended in high school into formularized setting that integrate various fields based on middle school function. In revising education course, the circumstances of other countries are desired to be considered to keep abreast of international standard education courses. In this study, the textbooks of Gesamtschule a general school a school type similar to the education system in Korea among various school forms of Germany were selected to look into the characteristics of function introduction and teaching & learning in Germany, and the textbooks were compared and analyzed with those of Korea. As a result of comparison and analysis on the system and contents with emphasis on function area, German textbooks differed from the 7th revised education course on the introduction of function concept, contents development method and method of instructing on graph etc. Such differences are anticipated to serve as data for reference in the development of revised education courses and textbooks in Korea.

• Journal of Korean Library and Information Science Society
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• v.40 no.1
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• pp.451-469
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• 2009

This paper analyzed four large scale studies on the impact of school libraries on students' learning. It identifies how students benefit from their school libraries and how the libraries contribute to the educational goals of the schools. The four studies were the 'National Power' project study, the Scotland study, the Ohio study, and the Delaware study. These studies developed frameworks for evaluating the impact of school libraries on learning, which give insights on how educational objectives and experiences are related with each other and what indicators are available to measure their impact on learning. Basing on Bloom's Taxonomy of educational objectives and Kuhlthau's model of information search process, the educational objectives of the frameworks included cognitive, affective, and psychomotor/physical domain, plus interpersonal domain. The four studies used such research methods as case studies, observations, interviews, focus group discussions, log data analyses in order to identify various learning experiences and impacts.

• Journal of Korea Multimedia Society
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• v.7 no.4
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• pp.550-558
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• 2004

Previous researches on scalability problem of distributed virtual environment (DVE) have been mainly focused on spatial partitioning of area of interest (AOI). Congestion phenomena by avatar groups in AOI have been neglected relatively However, AOI congestion is highly related to scalability of DVE because it exhausts system resources such as network bandwidth and rendering time, and could be a bar to perform collaboration among participants. In this paper, this will be defined as the problem that must be solved for the realization of the scalable DVE, and a model will be proposed to measure and control congestion situation in AOI. The purposes of the proposed model are to prevent high density of participants in AOI, and to protect stable collaboration in DVE. For evaluation of the performance it is compared with a previous method by defining the resource cost model which is dynamically activated to AOI congestion.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.3
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• pp.659-666
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• 2015

In this paper, we propose a novel reconstruction method of spatially filtered 3D images in integral imaging based on parallel lens array. The parallel lens array is composed of two lens arrays, which are positioned side by side through longitudinal direction. Conventional spatial filtering method by using convolution property between periodic functions has drawback that is the limitation of the position of target object. this caused the result that the target object should be located on the low depth resolution region. The available spatial filtering region of the spatial filtering method is depending on the focal length and the number of elemental lens in the integral imaging pickup system. In this regard, we propose the parallel lens array system to enhance the available spatial filtering region and depth resolution. The experiment result indicate that the proposed method outperforms the conventional method.

• Cartoon and Animation Studies
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• s.20
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• pp.87-104
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• 2010

Animation creates meaning and affection by combinig image and sound like film. directed by Yuri Norstein is a good text for analyzing animation sound in that it combines image and various music and sound effects well. This study focuses on analyzing the way that sound function to make meaning in this text. Generally sound is categorized into dialogue, music, and sound effect. And animation has its own characteristic in each category. The voice for dialogue is created corresponding to the image of the character and the rhythm is very important in Animation. Plus Sound effect in animation can be said to mimic not just sound but also movement. This study analyzes sound based on three sound factors and the concepts of the point of listening, subjective sound, and sound bridge. Subjective sound using the point of listening of the wolf and the baby bestows a special position on the main characters in the text. It is the overall characteristic of the sound use of this text that the repetitive combination of sound and image, the linguistic and annotative function of sound effect, and comparatively conventional use of music and sound effect enhance the affection and readability.

• Proceedings of the Korean Vacuum Society Conference
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• 2011.08a
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• pp.403-403
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• 2011

결정질 태양전지는 태양전지 시장에 큰 서막을 장식하였다. 현재 여러 종류의 태양전지 기술들이 많이 나오고 있지만 결정질 태양전지는 변환 효율이 좋고 신뢰성이 높아서 높은 시장 점유율을 차지하고 있다. 하지만 응용 분야가 적고 기판 가격이 비싸다는 단점이 있다. 현재에는 응용분야 개선을 위하여 Flexible solar cell에 대한 연구가 활발하다. Flexible solar cell에 상부전극은 결정질 태양전지에서 사용되는 Ag나 Al 전극 대신 TCO 종류의 일종인 ITO를 많이 사용한다. Flexible Solar cell은 Organic Solar cell과 Amorphous Solar Cell 두 가지 범주를 가지고 있다. 본 연구에서는 Amorphous Solar Cell의 전극에 사용되는 ITO의 온도 Stress에 따른 특성을 연구함으로써 Engineer의 근본적인 이슈인 저비용, 고효율에 초점을 맞추어 소자특성을 확인해 보도록 한다. Glass에 E-beam evaporation 장비를 이용하여 ITO를 증착하였고 제작된 소자를 200, 250, 300, 350$^{\circ}C$의 온도변수를 두어 1시간동안 Annealing 하였다. 각 Annealing 온도에 따른 Sheet resistivity,와 visible 영역의 transmittant를 측정하였다. visible영역에서의 transmittant는 Annealing 200$^{\circ}C$에서 300$^{\circ}C$로 온도가 증가함에 따라 transmittant는 증가하다가 350$^{\circ}C$에서 감소하였다. Sheet resistivity의 경우 Annealing 200$^{\circ}C$에서 300$^{\circ}C$로 온도가 증가함에 따라 ITO의 Sheet resistivity가 줄어들다가 350$^{\circ}C$에서 증가하였다. 300$^{\circ}C$로 Annealing한 ITO가 가시광선 영역에서 transmittant가 가장 높은 80%로 측정 되었다. Sheet resistivity역시 300$^{\circ}C$로 Annealing한 ITO가 8${\Omega}/{\Box}$로 가장 낮았다. Annealing 온도가 ITO의 electrical 특성과 optical 특성에 변화를 주었음을 알 수 있었다. Resistivity가 낮은 ITO 전극으로 박막 셀을 제작한다면 좋은 효율을 얻을 수 있을 거라 생각된다.

• Applied Microscopy
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• v.27 no.1
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• pp.101-109
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• 1997

The nonstoichiometric ordering of Mg and Nb cations in undoped and La-doped lead magnesium niobate solid solutions has been investigated by means of high-resolution transmission electron microscopy and computer image simulation. High-resolution lattice images were obtained under various microscope imaging conditions and objective apertures. Computer image simulations were performed for a wide range of sample thickness, defocusing value, and long-range order parameter. The simulated images revealed that the lattice images of the ordered regions were predominantly dependent on the long-range order parameter. From the comparisons of the experimental and simulated images for the ordered regions, the long-range order parameter approximately ranged 0.2 to 0 7. It was also found that the ordered structure has a $(NH_4)_3-FeF_6$ structure, which consists of alternating Mg- and Nb-preferred sublattices along the (111) directions.

• Journal of the Korea Convergence Society
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• v.8 no.4
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• pp.67-77
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• 2017

The purpose of this study is to find convergence differences of academic burnout, career preparation behavior, and general characteristics of the students majoring in medical records according to each cluster of resilience, and draw a proper improvement plan. A self-administered questionnaire survey had been conducted and a total of 168 copies were analyzed. As a results Cluster analysis was conducted on three detailed categories of resilience and was classified into two clusters. Cluster1 was a group that had points higher than the average points of Korean in each one of three categories. Cluster2 had all of which were lower points than that. Cluster1 had higher points than cluster2 in terms of career preparation behavior, hobby, subjectively good health condition, extroverted personality, good academic records, satisfaction with school life, and study satisfaction ratio, but had lower points than cluster2 in terms of academic burnout. Therefore, positiveness enhancement education focused on cluster2 will improve total group resilience.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.115-127
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• 2019

This study aims to address the needs and effectiveness of performance measurement system for convenient facilities support project for people with disabilities performed by local government. In addition, it is also to develop performance measurement index based on logic model. The researchers conducted literature review and focus group interview to develop the performance measurement index. Then, through the project managers and related professionals, the researchers tested validity of the measurement. The final measurement consisted of 38 questionnaires in 8 sectors. With this performance measurement system, we expect to establish rationalization of overall disability services. Also the theoretical framework and approach of performance measurement will be applicable to diverse public social service sectors.

• Science of Emotion and Sensibility
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• v.27 no.1
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• pp.93-106
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• 2024

Children play a crucial role in the lives of parents, but research on the parent-child relationship has focused mainly on its impact on parents' social relationships and happiness. This study explored how parenting motives affect the association between parents' relationship satisfaction with children and subjective well-being. Previous studies have suggested that the psychological benefits of achievement or positive experiences in specific life domains are dependent on the perceived importance of such domains. Thus, we hypothesized that a satisfying relationship with children can strongly predict the subjective well-being of parents with elevated parenting motives. The study included Korean (Study 1) and American (Study 2) participants. Results of both studies demonstrated a pronounced positive correlation between parents' relationship satisfaction with children and subjective well-being in individuals with high levels of parenting motives. This moderating effect persisted even after controlling for relevant covariates (e.g., gender, age, and Big 5 personality traits). Notably, this effect was particularly evident in subfactors of subjective well-being, which is negative affect.