• Journal of The Korean Association For Science Education
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• v.33 no.2
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• pp.522-537
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• 2013

This study analyzed the relationship among the construct level of analogical reasoning, prediction and uncertainty, and the construction of an explanatory model that were produced during small group discussions for scientific problem solving. This study was participated in by 8 students of K University divided into 2 teams conducting scientific problem solving. The participants took part in discussions in groups after achieving scientific problem solving individually. Through individual interviews afterwards, changes in their thinking through discussion activities were looked into. The results are as follows: The analogy at the Entities/Attributes level was used to make people clearly understand the characteristics of certain objects or entities in the discussions. The analogy at the Configuration/Motion level that was produced during the discussions ensured other participants to predict the results of problem solving. The analogy at the Mechanism/Causation level changed the structure of problem situations either to help other participants to reconstruct the explanatory model or to come up with a new situation that was never been through before to justify the created mechanism and through this, the case of creating Thought Experiments during the discussions were observed. if looking into the changes of analogies, each individual's analogic paradigm during the discussions were shown as production paradigm, reception-production paradigm, production-reception paradigm, and reception paradigm. The construction and reconstruction of the explanatory model were shown in analogic production paradigm, and in the reception paradigm of an analogy, participants changed their predictions or their certainty.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.11
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• pp.4151-4160
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• 2010

Recently the arts and cultural sector is drawing attention as a new growth engine of the Korean economy. The paper is empirically analyzed on the gender wage differentials in the arts and cultural sector and specially focused on decomposing the wage differentials between the manufacturing sector and the arts and cultural sector. Our results may be partly useful for explaining the existing phenomenon of the arts and cultural sector in Korean labor markets, for example, young, highly educated, part-time contracts, less gender discrimination, etc. The results might provide somehow the policy directions of reducing the gender wage differentials.

• Journal of The Korean Association For Science Education
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• v.40 no.6
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• pp.595-609
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• 2020

The purpose of this study is to analyze the experiences of teachers who participated in the development of online science class videos in the context of covid-19, their perception of online science class, and the characteristics of the online science class content developed by teachers. A survey and interviews were conducted with ten elementary school teachers who made online science class videos themselves. Also the characteristics of the online science class were investigated by analyzing the online science class video produced by the participants. As a result, participants in the study recognized the lack of production time, difficulty in filming and editing, concerns over misconceptions, the problem of solving copyrights for existing materials, and the burden of external disclosure. Although it was a teacher who had experience producing online science class video contents, no research participants actively answered the merits of online science class. On the other hand, the study participants cited that the shortcomings of online science classes were that students had fewer opportunities for inquiry and lack of communication or interaction. In particular, these shortcomings were thought to have a great influence on the quality of online science classes, especially in making inquiry classes difficult. Some teachers took a negative view that online science classes could not completely replace face-to-face classes. However, if multiple teachers are presented with supplementary teaching activities that complement the content-based online teaching method, the method of combining online science classes and face-to-face classes is not. Through the analysis of the contents of the online science class, the introduction and arrangement steps of the online science class were similar to the process of the face-to-face science class, but the inquiry step and the conceptual explanation step showed a big difference from the face-to-face science class.

• Journal of the Korean association of regional geographers
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• v.18 no.1
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• pp.71-85
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• 2012

Marriage Immigrants have greater impact on local communities than migrant workers and foreign students, all the more because their children are relatively more important. Therefore, this study aims to inquire into the fundamental cause on the choice of residential location of marriage immigrants. Residential segregation is often considered to be one of the social problems that intensify locality of residential district. Although migrant workers and foreign students cannot freely decide their residential location at the outset, they could change their residence later on. However marriage immigrants are not free from the residential location choice continuously. The intentional(involuntary) residential segregation brings differential residence of marriage immigrants. The residential segregation of marriage immigrants is concerned with the close relationship of their ethnic background and the community characteristic with focus on Vietnamese and Filipino. The results of this study could be used basic guideline for community development policy for marriage immigrants.

• Journal of the Korean School Mathematics Society
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• v.18 no.3
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• pp.281-309
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• 2015

The purpose of this study is provides an implication of further teaching learning process by analyze the common and difference and characteristic of mathematical self-efficiency between three peer tutoring groups discourse in the mathematical teaching leaning process that use peer tutoring. To achieve this goal, three groups formed that consist of one peer tutor who received a first grade of mathematic achievement and one peer student. Peer student of each group is divided into high grade, middle grade, low grade of mathematic achievement. Then analyze the discourse in the exponential function problem solving process. Based on the results of study, this paper provides a concrete example of merit of peer tutoring on the peer tutor. Result of study also provides a practical help to make a peer tutoring group by considering a difference of grades between peer tutor and peer student. Because there is a possibility of mutual discourse on the tutoring group that consist of similar grades.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.493-496
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• 2009

Many AR (Augmented Reality) applications have been interested in a marker-less tracking since the tracking methods give camera poses without attaching explicit markers. In this paper, we propose a new marker-less page recognition and tracking algorithm for an AR book application such as DigilogBook. The proposed method only requires orthogonal images of pages, which need not to be trained for a long time, and the algorithm works in real-time. The page recognition is done in two steps by using SIFT (Scale Invariant Feature Transform) descriptors and the comparison evaluation function. And also, the method provides real-time tracking with 25fps ~ 30fps by separating the page recognition and the frame-to-frame matching into two multi-cores. The proposed algorithm will be extended to various AR applications that require multiple objects tracking.

• Current Industrial and Technological Trends in Aerospace
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• v.9 no.1
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• pp.110-118
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• 2011

In this paper, design techniques and technological trends applied on simulator development, which are based on Model Driven Architecture, are described. The methodology, process and modeling support tools for development of simulation software are introduced with both satisfaction of user's requirements and benefit to simulator developers of reducing cost. In addition, contents in ECSS standard for reusability of simulation model and its usages applied on industries are presented and major features of current technological changes with highlights of key-word are discussed.

• Journal of The Korean Association For Science Education
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• v.21 no.4
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• pp.745-756
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• 2001

This paper is about interactional characteristics of a middle school student's conceptual ecology in the context of conceptual change. A case study in this paper shows that: (1) there is interacted with three characteristics(conceptions, past experience, and explanatory coherence) within conceptual ecology; (2) the interactional characteristics of conceptual ecology have significant affects on the difficulties of conceptual change. Implications of this case study are that: (1) teaching for conceptual change should start at the certain site related to subject-matter task within students' conceptual ecology; (2) Students' inconsistent explanations could be used as the clue of conceptual change; (3) Past experience is the important area of conceptual ecology research for understanding learners.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 1998.11a
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• pp.59-64
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• 1998

정상 성인의 경우, 감성 개념의 내적 차원 구조는 쾌/불쾌 차원과 각성 차원이라는 2차원 구조에 원형의 체계적인 분포를 보이는 것으로 알려져 왔다. 본 연구에서는 이와 같은 2차원 구조가 얼마나 보편적이고 일관된 양상으로 나타나고 있는지를 살펴보고자 하였다 이를 위해 연구1에서는 아동 및 청소년에게 15개의 정서 관련 어휘로 이루어진 10i개의 단어 쌍에 대한 7점 척도의 유사성 평정을 시행하였으며, 연구 2에서는 정신분열증 환자에게 통일한 절차를 시행하였다 다차원 분석 결과, 1차원(초등5년:74%, 중등2 년:72%, 정신분열증 환자: 60%)과 2차원(초등5년: 18%, 중등2년16%, 정신분열증 환자: 11%)이 도출되었다 정상 성인의 경우와 마찬가지로 1차원은 쾌/불쾌 차원, 2차원은 각성 차원으로 해석될 수 있었다. 따라서, 감성 개념의 구조에 있어서 쾌/불쾌 및 각성은 인지적 성숙의 단계나 인지, 정서적 손상에 관계 없이 매우 일관되게 나타나는 비교적 안정적인 차원 구조인 것으로 생각된다. 다만, 발달 단계나 병리적 속성에 따라 각 차원의 비중치는 다소 차이를 보이는데, 아동 및 청소년의 경우, 주로 쾌/불쾌 차원을 통해 감성을 개념화 하는 특징을 보이며, 정신분열증 환자 집단의 경우, 1,2차원 모두 상대적으로 설명량이 낮은 것으로 나타나는데, 의 경우, 비중치가 더욱 낮은 것으로 나타났다. 이러한 결과를 통해 내적 차원 구조의 타당성 및 제한점에 관해 논의하였다.

• Korean journal of communication and information
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• v.54
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• pp.98-117
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• 2011

This paper is a theoretical inquiry of the changing roles of digital technologies in the representation of risk. Critically examining existing perspectives on risk society and risk communication, this paper argues that digital technologies and images in risk communication have been relatively understudied. Having said that, this paper suggests that Actor-network Theory provide useful theoretical tools for current studies on how digital technologies affect contemporary risk communication practices. Furthermore, this paper examines varied recent studies investigating how digital technologies of visualization are at play in risk communication practices. In doing so, this paper demonstrates how digital images and technologies interrupt the processes that scientific evidence is presented and facts are constructed in varied contemporary scientific reasoning. It will focus on the emerging mode of seeing and visual regime made possible by the increased usage of digital image and technologies, which are characterized by networked connection, sensor, computerized algorithm, and increased storage space. Finally this paper will discuss on the implications on future studies on the roles of digital images and technologies in risk communication practices in Korean context.