• Korean Journal of Optics and Photonics
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• v.29 no.4
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• pp.149-158
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• 2018

A generalized structural design equation can be used to simplify and systematize a telecentric lens system composed of multiple lenses, as a creative design method of the authors. Through this structural equation, we have investigated the feasibility and design methodology of a telecentric lens equipped with a conventional smartphone camera for machine vision. As a result, we could verify and present a useful, generalized structural equation termed the $f{\theta}$ formula, being able to divide and combine the whole telecentric lens system into two modularized lens groups.

• KIPS Transactions on Software and Data Engineering
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• v.5 no.2
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• pp.51-58
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• 2016

The importance of SW education is being stressed recent days, and the App Inventor is getting attention as a tool of SW education. In this study, I have developed an app Inventor instruction model, which is based on the Design Based Learning and integrated with elements of computational thinking. And I taught the student to apply this model. and then analyzed the app production process and the changes of student. In developing the app, students defined the problem and made a plan to resolve them. And this student had have a sense of accomplishment and self-confidence through practical experience to implement it in their own source code.

• Elastomers and Composites
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• v.40 no.2
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• pp.128-135
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• 2005

Optimal conditions for preparation of starch/PVA blends were investigated with the consideration of factors that may influence mechanical properties of the blends. $L_{27}(3^{13})$ experimental designs based on Taguchi method were performed and then tensile strength, strain at break, Young's modulus and tear strength of films of the blends were measured to determine the optimal conditions for preparation. Interaction effects for each factor were determined from analysis of variables. Results of $L_{27}(3^{13})$ experiments indicated that glycerol and urea were important process factors affecting optimization of the mechanical properties.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.3
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• pp.33-39
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• 2019

This study analyzes the content of YouTube channel "Cream Heroes" dealing pet(cat) produced in South Korea currently. Due to the advance of science and technology in the 21 century, the commons are able to independently upload their own content after filming videos, and it is called One Person Media. Unlike existing One Person Media that contains provocative and violent factors, "Cream Heroes" is sound content that shows various features of cats. Specifically, this study explores how and why "Cream Heroes" is popular via content analysis. Throughout this, it studies not only the trait of popular YouTube channel, but also proposes the proper environment of One Person Media.

• The Southeast Asian review
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• v.23 no.1
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• pp.277-311
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• 2013

한류에 대한 기존 언론보도 및 연구 경향은 다음과 같이 요약된다. 중국 일본 및 서구에서의 한류 현상에 대한 편중된 관심과 한류 분석틀로서 문화근접성 이론에 대한 지나친 의존이다. 이러한 상황은 한류 현상에 대한 객관적인 인식과 경험적인 분석을 방해하고 있다. 이러한 문제의식에 기초한 본 연구는 동남아시아, 특히 싱가포르의 한류 현상에 대한 분석을 통해 보다 객관적이고 다각화된 한류 연구를 모색한다. 지리적으로 동남아시아에 위치하고 있지만 문화적으로 동북아시아적 요소를 포괄하고 있는 싱가포르는 아시아 내 초국적 대중문화 교통을 연구하는 데 있어 전략적으로 중요한 공간이다. 본 논문은 싱가포르의 한국 대중문화 수용자들에 대한 포커스그룹 인터뷰, 문헌조사와 참여관찰을 통해 한류 형성의 이유 및 한류 팬덤이라는 문화적 실천이 갖는 의미를 탐구한다. 수용자에 대한 분석은 그가 배치된 싱가포르 미디어 구조에 대한 역사적, 기술적, 정치경제적 맥락화를 통해 보다 체계화된다. 본 연구를 통해 동남아시아에서 발견되고 있는 "외래문화 수용의 진부화"(banalization of foreign cultural reception)라는 상황이 동남아시아 내 한류 전개에 중요한 영향을 끼쳤으며, 동남아시아 미디어산업의 저개발 상황이 한국 대중문화 수용에 우호적 조건으로 작용했음을 확인할 수 있었다. 마지막으로, 연구자는 동아시아 내 문화교통의 연속성 (continuum of cultural traffic within East Asia) 안에 한류 연구를 배치할 것을 제시한다.

• Advanced Industrial SCIence
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• v.3 no.2
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• pp.1-7
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• 2024

This paper deals with the topic of quantification of soft power through emotional analysis. Sentiment analysis refers to the process of detecting and analyzing emotions or emotions in various data such as text, voice, and images. Therefore, in this paper, we explored the methodology and significance of how soft power can be quantified through emotional analysis. Soft power refers to the ability of a country or organization to influence the behavior of another country or organization in a desired direction. It is built by soft factors such as culture, values, and political system rather than military or economic means. Additionally, sentiment analysis is being used as a useful tool to measure and understand these soft areas.

• Journal of the Daesoon Academy of Sciences
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• v.35
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• pp.181-216
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• 2020

The incarnation of Jesus and Jeungsan's descending to earth as a human being are important theological theories in their respective religions, Christianity and Daesoon Jinrihoe. Both theories are the doctrinal devices necessary for the religious description of each religion. However, this kind of study is likely to result in a theological study that generates religious apologia or explanations. Therefore, it is impossible and meaningless to define the theory of another religion as meta-discourse in terms of one's own religious viewpoint. From a traditional theological point of view, the incarnation is an exceptionalist case wherein God descended as a human being named Jesus to save humanity from original sin. In the case of Jeungsan's descending to earth as a human being, its religious features appear in various forms, so the attempt to unify these two is not an objective method of religious studies. However, this paper aims to find the religious significance of Jesus' incarnation and Jeungsan's descending to earth as a human being by understanding them from a third-person terminology or third-person religious viewpoint rather than from a specific theological position. To this end, this paper will use Kim Jong-seo's position that the concept of Jeungsan's descending to earth as a human being was borrowed from the concept of the incarnation of Jesus as the premise of the research generated in this paper. Therefore, this paper avoids the quest for "Total Christ" or "Total Jeungsan" that integrates and views the divine and human elements of Jesus and Jeungsan. This is because such a research method becomes a theological study. Instead, it excludes transcendental elements or metaphysical aspects that discuss the divine pre-existences of Jesus and Jeungsan and clarifies the significance of the incarnation and Jeungsan's descending to earth as a human being at the physical level in terms which are objective and verifiable. According to this research methodology, this paper develops a discussion after presupposing the hypothetical names of "incarnationist religion" and "divine descent in human avatar religion." However, the two presuppositions mentioned above contain elements of criticism that they are materialistic interpretations that completely eliminate connotations of divinity and religious significance. Nevertheless, it can be said that the two presuppositions have academic significance due to the way in which they avoid the current entanglement of transcendence and instead aim for modernistic relevance.

• Journal of Science Education
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• v.38 no.3
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• pp.718-736
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• 2014

This study was intended to determine PCK of the middle school science teachers on Mendelian genetics and factors influenced to form their PCKs. Two science teachers with biology major with a teaching experience over 5 years were chosen as the subject. Data were collected by class observation, semi-structured interview, teacher questionnaire survey, Content Representation and Pedagogical and Professional-experience Repertoire. The collected data were analyzed based on Magnusson's PCK for science teaching consisting of five components: (a) the orientation toward teaching science, (b) the knowledge of science curriculum, (c) the knowledge of students' understanding, (d) the knowledge of assessment, and (e) the knowledge and belief in the instructional strategies to teach science. Teachers could have the orientation toward teaching science served as an assisting role to support students' abilities. Both subject teachers seemed to focus on giving lectures. Their efforts to improve students' exploration methods and abilities were not expressed enough in their real classes and they found that students struggled to understand Mendelian genetics. Therefore, they should have explained them in an easier way and worked harder to make their students understood accurately and applied basic and advanced concepts of Mendelian genetics. They found students' preconception and misconception regarding Mendelian genetics and wished to enhance their learning effects by various teaching strategies such as correcting misconception, adding the history of science and simply assessing students' affirmative domains. It was also found that factors influenced to form PCK regarding Mendelian genetics by both teachers were as follows: teacher's personality and endeavor, textbooks and guidance books, schools and their circumstances, teaching experience, experience as a learner, interaction with their colleagues, and university curriculum. Both teachers said that it was important for teachers to make every efforts to give better classes.

• Journal of The Korean Association For Science Education
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• v.36 no.1
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• pp.147-158
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• 2016

This study examined the changes of preservice biology teachers' NOS pedagogical content knowledge through two consecutive science methods courses: NOS understandings; attitudes toward teaching science; difficulties of NOS teaching; NOS teaching strategies; and views of orientation of NOS teaching. During the science methods course I, the preservice teachers engaged in discussions and reflections on what science is and how scientific knowledge has produced, drawing NOS aspects from episodes of history of science, and planning the lessons cooperating NOS instructional objectives. Then the next semester, through the science methods course II, the preservice teachers had a chance of the simulated teaching by adopting NOS teaching and learning activities in the context of the secondary biology context. The preservice teachers, further, reflected on their NOS teaching. The results showed that the preservice teachers constructed the NOS pedagogical content knowledge. They significantly improved their views of NOS and its teaching(p<.05) after the science methods course I, and retained their understanding after the science methods course II(p>.05). The preservice teachers mentioned the difficulties of teaching NOS in the secondary biology context, and further suggested effective NOS teaching methods in their reflective journals.

• Communications of Mathematical Education
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• v.25 no.1
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• pp.21-45
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• 2011

It is the aim of this paper to find the requisites for the target problem solving process in reference to the base problem and to search the roles of those. Focusing on the structural similarity, analytic activity and comparative activity in stage of similar mathematical problem solving process, we tried to find the roles of them. We observed closely how four students solve the target problem in reference to the base problem. And so we got the following conclusions. The insight of structural similarity prepare the ground appling the solving method of base problem in the process solving the target problem. And we knew that the analytic activity can become the instrument which find out the truth about the guess. Finally the comparative activity can set up the direction of solution of the target problem. Thus we knew that the insight of structural similarity, the analytic activity and the comparative activity are necessary for similar mathematical problem to solve. We think that it requires the efforts to develop the various programs about teaching-learning method focusing on the structural similarity, analytic activity and comparative activity in stage of similar mathematical problem solving process. And we also think that it needs the study to research the roles of other elements for similar mathematical problem solving but to find the roles of the structural similarity, analytic activity and comparative activity.