• 월간산업보건
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• s.159
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• pp.24-27
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• 2001

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2008.11a
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• pp.197-198
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• 2008

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.969-975
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• 2011

The purpose of this study is to investigate the effects of learners' self-motivational attitudes, use of instructional function, and understanding of successful learning on achievement in college e-learning classes. The study analyzed 297 college students' questionnaire about their internet learning attitudes based on how they understand e-learning and use various internet functions for their learning achievement. After factor analyses, the results found that there were three major factors such as self-motivational attitude, use of instructional function, and understanding of successful learning out of 15 survey items. Multiple regression showed that the self-motivational factor affects the learning achievement with overall three factors analyses. This result indicates that college e-learning classes should focus on the analysis of learners' self-motivational issues in college e-learning classes. This study suggest that the relationship between learners' e-learning experience and learning achievement should be examined in the near future to show how it affects on learners e-learning class management and their achievement.

• The Journal of the Korea Contents Association
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• v.17 no.2
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• pp.278-287
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• 2017

As a background for qualitative research, the concept of bricolage is very common in the North America. As a movement of art area, because, it has characteristics of criticality and existence which is very close to the definitions of qualitative research. However, regardless of recent rapid wide-spread of qualitative research with the world trend of research methodology, it is very unusual that scholars are rarely discussing on the concept of bricolage in South Korea. In literature review, scholars conceptualize bricolage in literature, art, and so on except qualitative research field. Thus, I realize that it is necessary to discuss the concept of bricolage in qualitative research. Through it, scholars will understand more about the definition of qualitative research. Accordingly, I try to prove the thesis 'qualitative research is bricolage' in this article. In conclusion, scholars commonly define qualitative research to involve the meanings of 'reflection', 'understanding', 'deconstruction', and 'reconstruction' and illustrate also the concepts of bricolage in a praxis of interpretation and understanding with getting together of rigorousness, complexity, and criticality. I realize that these notions are very close to each other in this study.

• School Mathematics
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• v.18 no.1
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• pp.127-141
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• 2016

This study analyzes modes related to use of graph representation that appears to solve high school students quadratic function problem based on the graph using modes of Chauvat. It was examined the extent of understanding of the quadratic function of students through the flexibility of the representation of the Bannister (2014) from the analysis. As a result, the graph representation mode in which a high school students are mainly used is a nomographic specific mode, when using operational mode, it was found to be an error. The flexibility of Bannister(2014) that were classified to the use of representation from the point of view of the object and the process in the understanding of the function was constrained operation does not occur between the two representations in understanding the function in the process of perspective. Based on these results, the teaching on use graph representation for the students in classroom is required and the study of teaching and learning methods can understand the function from various perspectives is needed.

• Journal of Digital Convergence
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• v.14 no.9
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• pp.53-61
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• 2016

This study aimed to understand the effectiveness of teachers' backgrounds and digital textbook training experiences on digital competency, understanding of the digital textbook, perception of the digital textbook effectiveness and attitude toward the digital textbook. A total of 101 valid elementary, middle and high school teachers participated in the survey and the data were analyzed using the SPSS statistical package. As a result, male teachers showed higher digital competency than female teachers. Also, teachers who experienced with digital textbook training understood more about the digital textbook. It was suggested that a newly structured professional development program for the digital textbook considering teachers' personal backgrounds should be developed.

• 기계와재료
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• v.23 no.3
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• pp.16-29
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• 2011

결정 합금 대비 비정질 합금은 높은 경도를 갖기 때문에 마모 저항성도 좋고 내부 식성 등 환경에 대한 저항성도 월등하며, 또한 과냉된 액상 상태까지 재가열하게 되면 낮은 점성도를 갖게 되므로 복잡한 3차원적인 형상을 가지는 부품을 환경에 대한 저항성, 피로 저항성, 강도 및 경도 등을 모두 고려하여 높은 정밀도를 가지고 제조하는 것이 가능하므로 우수한 물성을 갖는 구조 및 기능성 재료로의 다양한 응용이 타진되고 있다. 이러한 비정질 합금의 변형 거동에 대한 연구는 대부분 유리 천이 온도 이하에서의 전단 및 파단에 이르는 이른바 불균일 변형(Inhomogeneous Deformation) 거동에 대한 이해를 위한 실험 및 해석적 연구에 집중되어 왔다. 반면 상업화의 기반이 되는 고상 기반 2차 정형 성형은 과냉 액상 영역에서의 구조 완화 및 결정화롤 대표되는 미세 구조 제어 균일 변형(Homogeneous Deformation)에 대한 이해 없이는 불가능하므로, 이러한 관점에서 비정질 합금 특유의 점성 유동 특성을 이용한 균일 변형 응용 예시 및 미세구조 변화 연계 해석 기술의 현황을 소개하고자 한다.

• Journal of the Korea Society of Computer and Information
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• v.9 no.3
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• pp.103-107
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• 2004

Software Reuse have the advantages of increasing productivity and software reliability reducing the period for software development and cost, sharing the information which is related to software. Vertical Reuse is the method which reuse is restricted to a specific area and can increase the reliability of software reuse due to high understanding of related area. Bottom-up approach of Vertical Reuse classifies the related information and s the results. It allows the reuse of not only pure source code but also informal documents.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.207-210
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• 2006

소프트웨어 프로덕트 라인 공학은 공통성과 가변성 식별을 통해 소프트웨어 재사용을 극대화시키는 접근방법으로 이를 지원하는 특성모델 작성도구에 대한 연구가 다수 진행되고 있다. 하지만 FODA 방식의 특성다이어그램을 지원하는 도구들은 특성다이어그램과 추가적인 특성제약사항을 분리하여 명세하기 때문에, 특성모델의 이해와 두 명세 사이의 일관성 보장이 어렵다. 따라서 본 논문에서는 UML을 이용하여 특성다이어그램에 추가적인 특성제약사항을 함께 표현함으로써 특성모델의 이해를 돕고, UML 특성다이어그램의 작성규칙 검사를 통하여 일관성을 보장하는 도구를 제안한다. 이를 기반으로 한 UML 특성모델 편집기를 통하여 개발자는 보다 쉽게 특성모델링을 수행하고, 일관성 있는 특성모델을 작성할 수 있다.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2002.11a
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• pp.4-10
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• 2002

색지와 무늬지를 주로 생산하는 팬시지 공장의 경우 고객의 다양한 기호와 수요에 대응하기 위해서는 잦은 색상 및 지종교체가 필요하다. 기존 wet-end 시스템과 color control 시스템으로는 높아진 고객의 품질 욕구를 충족하기 어려울 뿐만 아니라 잦은 지종교체로 인한 생산성, 원가, 조업안정성 등의 손실을 수반한다. 이에 당사는 wet-end volume을 획기적으로 줄여 빠른 응답시간의 장점이 있는 POM 시스템(compact papermaking system) 과 on-line color control이 가능한 CLCC (closed loop color control) 시스템을 동시에 적용하여 각각의 장점을 활용한 지종 교체시간 단축과 색상의 균일성을 확보한 사례이다.