• Journal of KIISE:Software and Applications
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• v.30 no.11
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• pp.1080-1091
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• 2003

Recently, the distance education has been rapidly proliferated with the rapid growth of the Internet and high speed networks. There has been relatively much research with regard to online lecture (teaching and studying) tools for the distance education, compared to the virtual laboratory tools (for self-study and experiments). In this paper, we design and implement a web-based simulation tool, named as SimDraw, for the virtual laboratory in the distance education. To apply the web-based simulation technology into the distance education, some requirements should be met; firstly, the user interface of the simulation should be very easy for students. Secondly, the simulation should be very portable to be run on various computer systems of remote students. Finally, the simulation program on remote computers should be very thin so that students can easily install the program onto their computers. To meet these requirements, SimDraw adopts the client/server architecture; the client program contains only model development and animation functions so that no installation of a client program onto student's system is required, and it can be implemented by a Java applet in Web browsers. The server program supports client programs by offering the functions such as remote compiling, model storing, library management, and user management. For the evaluation of SimDraw, we show the simulation process using the example experimentation of the RIP(Routing Information Protocol) Internet routing protocol.

• Smart Media Journal
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• v.9 no.4
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• pp.66-72
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• 2020

As the online education market expands, educational contents with various presentation methods are being developed and released. In addition, it is imperative to develop content that reflects the usability and user environment of users who use this educational content. However, for qualitative growth of contents that will support quantitative expansion of markets, existing model analysis methods are urgently needed at a time when development direction of newly developed contents is secured. In this process of content development, a typical model for setting development goals is needed, as the rules of the prototype affect the entire development process and the final development outcome. It can also provide a positive benefit that screens the issue of performance dualization between processes due to the absence of communication between a single entity or between a number of entities. In the case of AR-based educational content which is effective to secure data necessary for development by securing samples of similar categories because there are not enough ready-made samples released. Therefore, a big data statistical analysis service is needed that can easily collect data and make decisions using big data. In this paper, we would like to design analysis services that enable the selection and detection of intuitive multidimensional factors and attributes, and propose big data-based statistical analysis services that can assist cooperative activities within an organization or among many companies.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.386-389
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• 2001

본 논문은 그래픽 언어로 구성된 개발용 응용 소프트웨어인 LabVIEW를 툴로 사용하여 개별학습 프로그램 개발 및 응용 방안을 고찰하였다. 또한 이를 실업계 고등학교의 전자기초 회로실습에 활용하여 다양한 계측기들을 가상장치로 구성해 시뮬레이션함으로써 피교육자의 학습 성취의욕 고취와 학습 수행시 요구되는 시간적, 공간적, 경제적 부담을 줄이는 방안을 제시하였다.

• Archives of design research
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• v.18 no.2 s.60
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• pp.255-264
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• 2005

The development of personal computers and the Internet led to changes of instructor-student and student-student relationships in design education. New resources of design education with proper materials and tools have to be offered for teaching and learning. The purpose of this research is to develop Basic Graphic Tools(BGTs) on screen that help students to practice the design principles, and to evaluate the BGTs' usability to enhance the credibility of extra tools for online design learning. The BGTs has to be developed to minimize the gap between the online and traditional classroom settings and to maximize the diverse advantage of lecture content driven from technology. Students were given certain design requirements to explore BGTs and a learning guide/performance test after the lecture to evaluate the tools. The test was performed under the e-learning program serviced by C college. This research has presented some encouraging results and raises questions toward future work: how do BGTs impact the feasibility of an online design lecture.

• Journal of the Korea Society for Simulation
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• v.18 no.4
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• pp.219-225
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• 2009

The primary purpose of this study is to build computer models referring overall flow of complex and various semiconductor wafer manufacturing process and to implement a educational model which operates with a presentation tool showing device design. It is important that Korean semiconductor industries secure high competitive power on efficient manufacturing management and to develop technology continuously. Models representing the FAB processes and the functions of each process are developed for Seoul National University Semiconductor Research Center. However, it is expected that the models are effective as visually educational tools in Korean semiconductor industries. In addition, it is anticipated that these models are useful for semiconductor process courses in academia. Scalability and flexibility allow semiconductor manufacturers to customize the models and perform simulation education. Subsequently, manufacturers save budget.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1618-1621
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• 2015

본 훈련 시스템은 재난유형별 국가재난대응시나리오 기반의 대응체계를 바탕으로 재난의 종류나 규모, 복잡성 등과 무관하게 유관기관의 재난관리 관계자를 위한 교육 평가를 통해 표준화된 교육 훈련 평가체계를 확립한다. 이를 위해 국내와 해외의 사례에서 조사된 내용의 특 장점 및 표출형태를 고려하여 재난대응역량 강화를 위한 재난 발생 시나리오 기반의 텍스트 위주의 훈련용 웹 시스템을 개발한다. 무엇보다도 현실적으로 지역의 위험과 위협을 대표하는 검증된 유형별 시나리오를 기반으로 예방(Mitigation) 대비(Preparedness) 대응(Response) 복구(Recovery) 단계의 복잡 다양한 재난상황에 대한 재난대응역량 및 상황대처 능력을 향상시키기 위한 훈련지원 교육으로 활용하기 위한 사용자 확장성이 유용한 훈련용 웹 시스템을 개발한다. 이를 통해 사전에 유관기관과의 협력강화를 위한 원활한 재난대응 협력체계 강화방안을 수립하고 재난현장 협력업무와 관련된 필요역량을 도출하는 등의 활동과, 이에 대한 실효성 있는 평가로 재난현장의 기관간 상호협력 능력을 제고할 수 있다. 또한 대응기관의 역량수준을 점검하고, 대응역량에 대해 부족한 부분을 보완하여 효율적 재난대비태세 구축하여, 재난피해를 최소화하는 효과를 기대할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.857-860
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• 2005

웹 기술 기반의 컨텐츠 개발 및 운영으로 다른 환경에서의 컨텐츠 활용을 토대로 교육자원의 정보들을 통합 운영할 수 있는 관리 중심체인 e-learning 시스템의 중요성과 필요성이 대두되고 있으며, 교육용 어플리케이션은 현재 표준화되지 않은 개발 프로세스를 기반하여 개발하고 있는 실정이다. 따라서, 교육 컨텐츠의 재사용을 높이기 위해 국제적 학습 표준인 SCORM (Sharable Content Object Reference Model)을 기반으로 하나의 플랫폼에 있어서 시스템 개발 중 다른 플랫폼으로의 재사용이 가능한 핵심자산을 이용하여 조립, 생산할 수 있는 방안으로 체계적인 교육자원을 개발하고 지원하기 위한 교수-학습지원 시스템 개발에 초점을 둔 연구가 요구된다. 따라서, 본 논문에서의 교육적 도메인으로 접근하여 MDA(Model Driven Architecture)상의 교수-학습지원 시스템을 정의한다. 또한 학습컨텐츠 표준 메타데이터를 이용하여 컨텐츠저장소에 관한 분석 및 설계를 하고 MDA 자동화 툴을 이용한 핵심자산을 통해 실제 교수자가 필요로하는 컨텐츠를 제공할 수 있는 교수-학습지원 시스템을 개발하고자 한다.

• Journal of KIISE:Computing Practices and Letters
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• v.6 no.3
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• pp.311-318
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• 2000

The importance of the semiconductor industry in Korea has been growing, but the manufacturers are experiencing two major problems: poor optimization of production and low localization ratio of production equipments. Due to the complex manufacturing processes and special features such as OTD (On Time Delivery) and LIPAS (Line Item Performance Against Schedule) possibilities, several attempts to apply MRP or spreadsheet have been failed to meet the expectations. This paper describes the computer modeling technique as the solutions to analyze the problem, to formalize the semiconductor manufacturing process, and to build an advanced manufacturing environments. The computer simulation models are built referring the FAB facilities of the National Inter - University Semiconductor Research Center to show the FAB processes and the functions of each process.

• Journal of Digital Contents Society
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• v.13 no.3
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• pp.459-467
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• 2012

In this work, we develop an instructional method in which students create 3D animations based on problem-solving techniques and computational thinking. The educational, easy-to-learn programming environment/language called "Alice 2.3", which supports story-telling, is used for the delivery of the instructional method. Unlike typical 3D animation instructional methods using command-based demonstrations and/or 3D animation tools, learners engage in a group project in which they develop a story and solve problems by creativity, computational thinking and reasoning skills. Then they develop animations based on the story by programming with Alice. The analysis based on the collected data showed that learners had to put much effort while working on the project, but their critical-thinking skills were improved. It also showed they were more involved and their interests were heightened in developing animation through programming.

• Proceedings of the Korea Society for Simulation Conference
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• 2000.04a
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• pp.168-173
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• 2000

지금까지 국내에서 설치되어 있는 원전 시뮬레이터용 노심 (Neutronics) 모델 프로그램은 주로 전산기 성능이 오늘날 비해 낮은 환경에서 실시간으로 노물리 계산을 위해 중성자 확산(Diffusion)현상을 미리 반영한 곡선을 사용하는 등 빠른 계산을 위해 많은 가정과 간략화가 있었다. 본 논문에서는 중성자 물리 계산을 2 Group 3-D로 계산이 가능한 최신의 노심코드(REMARK)를 이용하여, WH사가 공급한 900Mw의 3 Loop PWR인 영광 1호기 12주기를 기준으로 한 시뮬레이터의 노심모델 개발하기 위한 핵설계 전산체계인 APA(ALPHA-PHOENIX-ANC) 시스템의 출력으로부터 자동으로 REMAR 입력데이타를 생성하기 위한 GUI툴 개발과 개발된 노심모델의 자체 검증 및 원자력발전소 사고해석에 쓰이는 최적평가코드(RETRAN)를 기반으로 하는 최신 실시간 열수력 시뷸레이션(ARTS) 모델과 결합(Integration)되어 원자로 냉각재 펌프 1대 정지 및 터빈정지 시험등 과도시험한 결과를 기술하였으며 개발된 노심 모델은 원자력 교육원 2호기 시뮤레이터에 적용될 예정이다.