• Journal of the Korean BIBLIA Society for library and Information Science
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• v.20 no.4
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• pp.85-100
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• 2009

This study suggested the expansion strategies of school library catalog considering educational context which should be used teaching and learning process. To achieve the purpose of research, this study derived educational context categories by comparing and analyzing teaching and learning related factors, information resource related factors. Also, this study analysed case system considering educational context. Based on the results, this study designed the catalog data elements as an element to be added to an existing school libraries system(DLS). The derived data element is end user(teacher, students), instructional situations (teaching method, instructional object, curriculum, evaluation type), resource type(feature, discipline, format), reading situation(contextual reading, literature topic), related materials(teacher representation, student representation).

• School Mathematics
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• v.9 no.3
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• pp.375-396
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• 2007

The purpose of this study is to analyze how a mathematics teacher and a high school student make the meaning in a graph and how aspects of the interpretation of a graph are interacted during the signification process, and to suggest considerations for teaching and learning of a graph. The findings of a case study have led to conclusions as follows: All of them have a difficulty in making the meaning in a graph and construct the meaning as a nested signification model. In the process which they make the meaning, they interrelate cognitive, contextual, and affective aspects and construct interpretants. In this process, a teacher focuses on cognitive aspect, based on a qualitative approach. But a student considers contextual aspect more, based on a quantitative approach. This study suggests three considerations for teaching and learning of a graph.

• Journal of the Korean School Mathematics Society
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• v.15 no.1
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• pp.1-25
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• 2012

The purpose of this study is to extract the conceptual nature of contextualization in mathematical problems and to analyze problems according to its conceptual framework based on the perspective of RME (Realistic Mathematical Education) which emphasizes mathematising through realistic context in mathematics textbooks of the 4th grade in Korean textbooks and the U. S. materials. "Contextualization" was analyzed by three elements such as everydayness, variety, and mathematical immanence. As results, Korean textbook showed much less in the amount of contextual problems and also represented lower contextualization in contextual problems than that of American textbooks.

• Journal of The Korean Association For Science Education
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• v.35 no.3
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• pp.509-521
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• 2015

Argumentation is a social and collaborative dialogic process. A large number of researchers have focused on analyzing the structure of students' argumentation occurring in the scientific inquiry context, using the Toulmin's model of argument. Since SSI dialogic argumentation often presents distinctive features (e.g. interdisciplinary, controversial, value-laden, etc.), Toulmin's model would not fit into the context. Therefore, we attempted to develop an analytical framework for SSI dialogic argumentation by addressing the concepts of 'discourse clusters' and 'discourse schemes.' Discourse clusters indicated a series of utterances created for a similar dialogical purpose in the SSI contexts. Discourse schemes denoted meaningful discourse units that well represented the features of SSI reasoning. In this study, we presented six types of discourse clusters and 19 discourse schemes. We applied the framework to the data of students' group discourse on SSIs (e.g. euthanasia, nuclear energy, etc.) in order to verify its validity and applicability. The results indicate that the framework well explained the overall flow, dynamics, and features of students' discourse on SSI.

• Journal of The Korean Association For Science Education
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• v.32 no.7
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• pp.1124-1138
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• 2012

This study investigates Korean middle school students' perceptions as global citizens (i.e. ecological worldview, social and moral compassion, and socioscientific accountability) of Socioscientific Issues (SSI). We developed questionnaires that consisted of 20 Likert-type items to gauge their preceptions of the three different SSI contexts (i.e. nuclear power generation, bio-technology, climate change), and administered them to 225 9th grade students in Seoul. The results revealed that participants showed relatively high scores for ecological worldview but scored low on social and moral compassion across the SSI contexts. In addition, participants presented much higher scores for ecological worldview and socioscientific accountability regarding the issues of climate change. The participant responses indicated that they perceived more inter-connectedness with the environment and felt the responsibility of promoting sustainable development more to prevent further devastation in the context of climate change compared to nuclear power generation or biotechnology.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.26 no.1
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• pp.199-215
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• 2015

As a way of identifying users' image needs for improved effectiveness of image search, there have been recent research approaches to examine contextual factors in image needs with multiple perspectives. In this line of research, this study examined a total of 70 unsuccessful image searches for the purpose of investigating users' image needs. In order to achieve the purpose of this study, in particular, the characteristics of image needs, contextual factors on image needs, and image queries were investigated. The findings of this study demonstrated that information needs from the failed image searches are categorized primarily into specific and general/nameable categories. More importantly, these information needs are embedded with multiple contextual factors, primarily, task purpose and use purpose. With an analysis of detailed use purposes for image, illustration use was found most in this data set. For query analysis, the type of unique/refined image query was revealed primarily. As the results of this study were found similar to the findings of previous studies, it is possible to characterize the image needs from the failed image searches. In addition, the findings of this study are expected to be useful to the design and service of image retrieval.

• Archives of design research
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• v.20 no.1 s.69
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• pp.111-120
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• 2007

This research proposes contextual space expression as a possibility of solution methods for local and historical issues, the matters that our contemporary architecture has to overcome. When modernistic architecture aimed for anonymous public interests denying the characteristics in historical and spacial contexts, postmodern architecture and regional architecture, etc have been striving to revive discontinued contextual meanings using various historical and environmental elements. While such attempts only borrowed architectural materials by superficially understanding the context, they could not comprehend ceaselessly changing contexts sufficiently. Choosing Jean Nouvel as one of the architects that can explain spatial plan to properly respond to such ever-changing, contemporary contexts, the researcher intended to understand his line of expressional characteristics of his architectural space and analyze his works as examples.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.810-813
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• 2007

본 논문에서는 맥락 인식 (context-aware) 애플리케이션 개발에 있어서 사용자의 맥락 정보를 보다 효과적으로 처리할 수 있는 사용자 중심의 맥락 모델을 제안한다. 유비쿼터스 컴퓨팅 개념의 확산과 함께 맥락 인식 애플리케이션들에 관한 많은 연구가 진행되고 있다. 하지만, 맥락에 대한 정의는 여전히 모호하며, 애플리케이션들 마다 서로 다른 형태의 맥락을 활용하고 있기 때문에, 맥락에 대한 보다 구체적인 정의와 다양한 애플리케이션에 활용 가능한 형태의 맥락 모델이 필요하다. 제안된 사용자 중심의 맥락 모델에서는 사용자가 애플리케이션과 상호작용할 때 사용자의 직접적인 명령을 제외한 사용자와 관련된 정보를 맥락으로 정의한다. 또한, 제안된 사용자 중심의 맥락은 5W1H 형태로 구조화한 맥락요소 (ContextElement), 맥락 요소들을 편리하게 처리할 수 있는 연산자들을 포함하는 맥락 (Context), 그리고 단편적인 맥락 정보뿐만 아니라 기존의 맥락 정보까지도 활용할 수 있는 맥락메모리 (ContextMemory)로 구성된다. 특히, 다양한 센서들로부터 획득된 정보를 맥락 모델의 인터페이스를 통해서 맥락 인식 애플리케이션에서 활용할 수 있기 때문에, 서로 다른 맥락 인식 애플리케이션들을 개발함에 있어서도 동일한 맥락 모델을 사용할 수 있는 장점이 있다. 제안된 맥락 모델의 유용함을 보이기 위해서, 센서로부터 획득된 맥락 정보를 처리하는데 소요되는 시간을 측정하는 실험을 하였다. 따라서 제안된 사용자 중심의 맥락 모델은 사용자와 맥락 인식 애플리케이션간 자연스러운 상호작용을 지원할 것으로 기대된다.) kcal/mol의 생성활성화 에너지 감을 나타내었고, TGA로부터의 분해활성화 에너지는 각각 31.94, 30.84, 24.16 kcal/mol의 값을 나타내었다.로 감소되었다(35.2% vs. 77.4%; p<0.01). 실험 2에서 다양한 정자 농도에 의한 정자 침투율과 정상 수정률을 바탕으로 판단했을 때 $4.6{\times}10^6/ml$의 정자 농도가 다른 정자 농도에 비해 난구 세포부착 난자의 체외 수정에 적합한 것으로 나타났다. 체외 수정과정에서 난구 세포 부착된 상태로 수정된 난자는 나화 난자에 비해 유의적으로(p<0.05) 높은 분할률(48.8% vs. 58.9%), 배반포 형성률(11.0% vs. 22.8%)과 배반포 세포수$(22{\pm}2\;vs.\;29{\pm}2)$를 나타내었다. 본 연구의 결과로부터 돼지의 체외 수정과정에서 난구 세포의 존재는 정자 침투를 저해하지만 분할률, 배반포 형성률 및 배반포의 세포수를 증가시키는 것으로 사료된다.수의 유출입 지점에 온도센서를 부착하여 냉각수의 온도를 측정하고 냉각수의 공급량과 대기의 온도 등을 측정하여 대사열의 발생을 추정할 수 있었다. 동시에 이를 이용하여 유가배양시 기질을 공급하는 공정변수로 사용하였다 [8]. 생물학적인 폐수처리장치인 활성 슬러지법에서 미생물의 활성을 측정하는 방법은 아직 그다지 개발되어있지 않다. 본 연구에서는 슬러지의 주 구성원이 미생물인 점에 착안하여 침전시 슬러지층과 상등액의 온도차를 측정하여 대사열량의 발생량을 측정하고 슬러지의 활성을 측정할 수 있는 방법을 개발하였다.enin과

• Journal of the Korean Society for information Management
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• v.39 no.2
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• pp.299-324
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• 2022

In this study, in order to explore the contextual elements of book use that were overlooked in the existing book recommender system research, for 15 avid readers with various book search backgrounds, the contents generated in 6 book search situations were collected through the think-aloud protocol. By using content analysis from the collected book use contents, not only the internal and external appeal factors affecting book use, based on the 'appeal factor', the theoretical concept of the readers' advisory service, but also information sources and search methods regarding book use were identified and categorized. The results of this study can be used to extract and reflect meaningful attribute data in the future book recommender system design process.

• Korean Journal of Cognitive Science
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• v.13 no.4
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• pp.9-21
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• 2002

Four experiments were conducted to examine whether maintaining the same conceptual context across study and test would affect performance on a perceptual implicit memory task. The sense-specific theory of priming (Lewandowsky et al., 1989) predicts greater priming from a match in conceptual context across study and test compared with a condition in which the conceptual context is mismatched, whereas the transfer-appropriate-processing view (e.g., Blaxton, 1989) predicts no difference. In experiment 1 and 2, little or no effect of varying context was observed on a implicit task. In experiment 3 and 4, a process-dissociation procedure (proposed by Jacoby, 1991) was used to separate automatic influences from consciously controlled influence in implicit memory, which was measured by Korean word completion task. The results showed that conceptual context effect was observed in consciously controlled parts of implicit memory. These results suggest that only consciously controlled processing parts of implicit memory is sensitive to conceptual context.