• Proceedings of the KIEE Conference
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• 2001.07a
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• pp.41-43
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• 2001

This paper presents a Web-based educational tool for Power System Engineering, especially for power engineers. This tool has Web-oriented educational courses for power system education. The Web-based learning has become more popular year by year in the various fields[1-2]. The proposed educational tool provides some courses such as power system introduction Course, KEPCO's system introduction Course, Power system devices Course, Power Flow Course, OPF Course, ELD Course, Stability Analysis Course, Fault analysis Course, Voltage & Frequency control Course, and power system planning & operation Course. Finally, it will be scheduled to install for the education tool of the power system engineering for KEPS[3].

• Proceedings of the Korea Contents Association Conference
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• 2012.05a
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• pp.191-192
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• 2012

In this paper, we describe an educational tool for presentation which shows teacher's whole handwriting process to learners named HPT(Handwriting Presentation Tool). We assume that presenting writing processes has rich educational information. We believe this information influences learners' understandings of the provided learning contents. Animation functions of popular presentation tools are not enough to represent this information. Our presentation tool enables the lessons with a new type of presentation slides which combine advantages of traditional blackboards and popular presentation tools.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 1997.10a
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• pp.94-100
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• 1997

The purpose of this study is to investigate the effects of operation factors of a typical main spindle system on its efficiency. Among important factors, material type of ball-bearing, bearing-lubricant type and main spindle bearing preload are taken into considered.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.749-750
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• 2013

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.101-102
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• 2010

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1992.10a
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• pp.302-306
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• 1992

To improve the productivity of NC drilling machine the tool path should be minimized. This paper describes a new heuristic practical algorithm to produce tool path for PCB drilling processes with a large scale and its experimental results are shown.

• Proceedings of the Korea Society of Design Studies Conference
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• 2005.10a
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• pp.150-151
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• 2005

• Proceedings of the Korea Society of Design Studies Conference
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• 1999.10a
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• pp.20-21
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• 1999

오늘날 제품개발 환경에서 디자이너는 고유의 디자인 업무뿐 아니라 여러 기능부서의 의견을 수렴하고 통합, 조정하는 교량 또는 촉매로서의 역할을 요구받고 있다. 이러한 변화에 따라 디자이너는 제품기획에서 생산, 판매에 이르는 제품개발의 전 단계에 적극적으로 그 역할을 하지 않을 수 없게 되었다. (중략)

• Proceedings of the Korea Society of Design Studies Conference
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• 2005.05a
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• pp.76-77
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• 2005

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1997.10a
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• pp.109-114
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• 1997

As CNC machine tool is one of core elements of manufacturing system, it is much important that it remains without troubleshoots. As a virtual machine is a recent alternative using IT for optimal utilization of CNC machine tool, it is a computer model that represents a CNC machine tool. But a virtual machine is still conceptual. So, in this paper, it is proposed that a virtual machine be a realistic model in the fault diagnosis module. For this purpose, the fault diagnosis system of machine tool using CORBA and fault diagnosis expert system has been implemented. Using this system, we have expections to diagnose exactly and prompty without the restriction of time or location, to reduce MTTR(Mean Time To Repair) and finally to increase the availability of manufacturing system.