• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.728-730
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• 2023

산업폐기물 처리 및 관리는 제조 산업 관련한 공통된 이슈 중 하나이며, 폐기물의 적시 처리는 환경오염, 화재 등 사고 예방에 효과적이며, 특히 인체유해물질 발생 전 처리는 필수이다. 메타버스 공간內 공동 폐기물처리장을 마련함으로써 별도의 물리적/현실에서 공동 폐기물 처리장을 별도로 구축할 필요성이 없으며, 동일한 효과성을 발휘할 수 있는 콘텐츠 서비스로 제조 뿐 아니라 다양한 산업 내에서 활용성 역시 매우 높다. 이러한 산업폐기물 관리 서비스 3종을 구현하고 실증 방안을 제시하고자한다.

• Journal of The Korean Association of Information Education
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• v.18 no.2
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• pp.225-234
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• 2014

Robot programming allows students to plan an algorithm in order to solve a task, implement the algorithm, easily confirm the results of the implementation with a robot, and correct errors. Thus, robot programming is a problem solving process based on reflective thinking, and is closely related to students' metacognition. On this point, this research is conducted to develop a robot programming instructional model for tile enhancement of students' metacognition. The instructional processes of robot programming are divided into 5 stages (i.e., 'exploration of learning tasks', 'a teacher's modeling', 'preparation of a plan for task performance along with the visualization of the plan', 'task performance', and 'self-evaluation and self-reinforcement'), and core strategies of metacognition (i.e., planning, monitering, regulating, and evaluating) are suggested for students' activities in each stage. Also, in order to support students' programming activities and the use of metacognition, instructional strategies based on cognitive apprenticeship (i.e. modeling, coaching and scaffolding) are suggested in relation to the instructional model. In addition, in order to support students' metacognitive activities. the model is designed to use self-questioning, and questions that students can use at each stage of the model are presented.

• Design Convergence Study
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• v.15 no.1
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• pp.37-48
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• 2016

Nowadays, CAD has became an essential tool for designers due to its easy edition and manipulation as well as the capability of communication between designers. Differences between design tool interfaces can cause gaps when visualize designer's ideas. This study is about the differences between various levels of metaphor interface language which is based on the theory of the Hutchins that high-level language interface can reduce the steps of process to visualize the idea of the designers than low-level language interface. This research is based on the assumption that high-level language interface will less interrupt the flow of the design thinking and make more various visual outcomes than the low-level language interface. We verified the hypothesis by analyzing differences of design thinking flow between user groups who used two different animation software. Hopefully, the verification of the hypothesis in this study can be able to guide the use pattern of the CAD tools.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.487-495
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• 2021

Using self-regulation learning strategies that can cultivate the creative and critical thinking required in the era of the Fourth Industrial Revolution, it was applied to the exploration experimental class of the section 'quantitative relationship in chemical reactions' in high school chemistry and the effects on academic performance and scientific attitudes were analyzed. In case of academic achievement, although there was no meaningful difference between the two groups in the pre-test, the average value of the experimental group was significantly higher in the post-test. In the case of scientific attitudes, the difference in average points between the two groups was the greatest in readiness and curiosity. In the post-test of the experimental group, academic achievement showed the highest correlation with meta-cognition and scientific attitude with behavioral regulation, respectively. Considering the effectiveness of metacognition and scientific attitudes, self-regulation learning strategies are the most suitable teaching-learning forms for creativity and personality education in this era.

• Proceedings of the KIEE Conference
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• 2003.07c
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• pp.1635-1637
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• 2003

송전선의 뇌사고율은 뇌방전 현상, 송전선의 써지 전달 현상, 아킹혼 사이의 섬락 현상 등 다양한 현상이 관련된다. 송전선의 내뢰설계 목표는 이러한 자연현상 및 물리적인 현상이 편차를 포함하고 있다는 것을 인식하고, 가능한 한 정확도가 높은 뇌사고율을 예측을 수행하고 허용 가능한 뇌사고율을 산정하여 송전선로 설계시 반영하는 것이다. 이러한 예측 계산을 위해 한전에서는 EPRI에서 개발한 FLASH 프로그램을 기본으로 사용해 왔으며, 이 예측계산법의 타당성은 예측 사고율과 사고 실적과의 비교에 의해 검토되어야 한다. 한전에서는 과거 10년간의 뇌사고 실적과 FLASH 프로그램으로 계산한 예측 사고율이 차이가 많이 나타나고 있어, FLASH 프로그램의 예측 계산법의 타당성에 의문을 제기하고 있는 상황이다. 일본 전력회사들은 뇌사고율을 예측 계산하기 위하여 1988년에 전력중앙연구소에서 개발한 프로그램을 사용하여 왔으며, 최근에 사고 실적과의 비교 및 관련 연구를 수행하여 예측 계산 프로그램에 사용되는 파라메타를 수정 보완한 LORP2000-1을 완성하였다. 본 논문에서는 지리, 기후적으로 한국과 유사한 일본의 자연현상을 반영한 LORP 프로그램의 예측계산법이 한전 송전선로의 뇌사고율 예측 계산에 적용 가능성을 사고 실적과의 비교를 통해 검토하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.9
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• pp.308-313
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• 2016

Modern systems have become more and more complex due to the ever-increasing user requirements and rapid advance of technology. As such, the frequency of accidents due to system design errors or failure has been increasing. When the damage incurred by accidents to human beings or property is serious, the underlying systems are referred to as safety-critical systems. The development of such systems requires special efforts to ensure the safety of the human beings operating them. To cope with such a requirement, in this paper an approach is employed in which we consider safety starting from the conceptual design phase of the systems. Specifically, a systems design method that can detect functional failure is proposed by utilizing meta-models and M&S methods. To accomplish this, the safety design data from international safety standards are first extracted and also a meta-model is generated using SysML (systems modeling language). Then, a SysML-based system design method is proposed based on the use of the developed meta-model. We also discuss how the safety requirements can be created and verified using a simulation method. Finally, through a case study in automotive design, it is demonstrated that the detection of a functional failure and the verification of a safety requirement can be accomplished using the SysML-based M&S method. This study indicates that the use of meta-models can be useful for collecting and managing safety data and that the meta-model based M&S method can make it possible to satisfy the system requirements by reducing the design errors.

• The Journal of Korean Association of Computer Education
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• v.14 no.3
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• pp.25-36
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• 2011

The purpose of this study was to analyze the effects of educational programming language(EPL) using the meta-analysis method. In order to achieve the purpose of this study, t-test and F-test were performed for the effect size differences between the variables. The results of the study were as follows: First, EPL turned out to be highly effective in improving learning effects. The total mean of effect size was as big as 1.01 and the value of $U_3$ was 84.38%. EPL increased the learning effect by 34.38% compared with the control group. Second, the moderator variables such as subject, publication type, and learner's school age there was no statistically significant differences. By designing the experiment nonequivalent control group pretest-posttest design showed statistically significant effect size compared with single group pretest-posttest design. Third, the mean effect sizes of the dependent variables were as follows: Creativity 1.90, problem solving ability 1.25, logical thinking ability 1.18, learning motivation 0.81, and achievement 0.59. EPL showed positive effect than traditional teaching and learning method comprehensively.

• Journal of Practical Engineering Education
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• v.14 no.1
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• pp.91-97
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• 2022

Recently, as per a representative education method to develop core capabilities (such as critical thinking, communication, collaboration, and creativity) problem based learning (PBL) has been widely adopted in universities. Two important features of PBL are 'collaboration between team members' and 'participation based self-directed learning'. These two features should be satisfied in online education, although it is difficult due to the limitation on space and time in the COVID-19 pandemic. This paper presents a new design of PBL class in Metaverse, based on improving the online PBL class operated in the previous semesters in the H university. In the proposed PBL class, students are able to display materials (e.g., image, pdf, video files) in 3D virtual space, that are related to problem solving. The 3D virtual space is called gallery in this paper. The concept of gallery allows for active participation of students. In addition, the gallery can be used as a tool for collaborative meeting or for final presentation. If possible, the new design of PBL class will be applied and its effectiveness will be analyzed.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.9 no.14
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• pp.3-34
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• 1986

교통은 오늘날의 문명사회를 저울질 할 수 있는 바로메타로서 인류생활의 향상과 발전에 크게 이바지해 온 것은 틀림없는 사실이다. 그러나 교통은 사람과 도로와 자동차의 조화 속에서 이루어지는 인간-기계계(man-machine system)인 것으로서 이들 요소들은 정삼각형을 구성하는 것으로서 어느 쪽에도 불합리나 결함이 자리잡게 되면 무섭고도 끔찍한 교통사고를 일으키고 만다. 이와 같은 사실은 최근의 교통사고 사망자수에 대한 변화를 찾아보더라도 그 엄청난 피해를 그냥 보아 넘길 수는 없는 것이다. 교통이란 본래 공간적인 이동을 그 기능으로 하고 있다. 사람들의 생활과, 이와 같은 생활을 둘러싸는 모든 활동은 확대, 확산된 공간속에서 실시되고 있는 것인데 여기에서 사회를 형성하게 된다. 따라서 교통이 발달한다는 것은 곧 사회적 교류를 드높이면서 그의 향상과 발전을 도모하게 될 것인데 이 때의 문제점을 기존통계를 중심으로 분석하면서 그의 교통안전교육에 대한 시행방안을 고찰하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.299-301
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• 2017

최근 다양한 산업들이 IT기술과 융합되어 비즈니스 환경이 변화하고, 핵심자산이 정보화됨에 따라 기업정보 유출의 위험성이 높아지고 있다. 이러한 유출 사건 사고는 끊임없이 증가하고 있기 때문에, 선행적으로 기업정보를 보호할 수 있는 보안환경이 구축되어야 한다. 이에 따라 기업정보 보안기술에 대한 연구와 투자는 꾸준히 증가하고 있으며, 다양한 보안 시스템이 개발되고 있다. 그러나 기업정보 보안기술에 대한 적절한 구분이 되어있지 않아 보안 시스템들이 서로 중복된 기능을 수행하고 있다. 중복된 기능의 보안 시스템 사용은 비용을 낭비할 뿐만 아니라, 효율적인 보안 관리를 하지 못하게 되는 문제가 발생한다. 따라서 본 논문에서는 이러한 문제점을 해결하고 균형 잡힌 기업정보 보안 시스템의 발전을 위해 선행연구를 통해 기업정보 보안 시스템에 관한 분류체계를 설계하였다. 향후 이 분류체계를 기반으로 메타분석을 실시하여, 그동안 진행된 기업정보 보안 시스템 분야에 대한 연구동향을 파악하고 학술적으로 연구자들에게 연구 방향성을 제시하고자 한다.