• Proceedings of the KIEE Conference
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• 1998.07c
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• pp.1015-1019
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• 1998

This paper presents the evaluation results of Korea Electric Power Corporation (KEPCO) system's power wheeling costs based on the postage stamp method. The results of several postage-stamp-based methodologies are compared where some of them are the conventional approaches. others are new approaches suggested in this paper. The approaches developed in this paper are suitable for a system where transmission transactions are occurred within a vertically integrated power system just like as Korea, Japan. etc. Also, they can overcome limitations related on the depreciation costs application. Test results show that the computed wheeling costs are around 4.0 [won/kWh] in 1995, and it is anticipated that the cost will increase when considering transmission network losses and ancillary costs.

• Information Display
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• v.19 no.6
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• pp.41-51
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• 2018

Micro LED, which is emerging as a next generation display, is difficult to commercialize due to various technical problems to date. In particular, transfer technology that transfers small LED to a display substrate in micro units is a key technology that can bring commercialization and is an important variable. The core of transfer technology is to move the LED quickly and accurately to the desired location. Therefore, it is necessary to pay attention on the transfer technology which is the most important task of Micro LED, and we analyzed and summarized the transfer technology using Elastomer Stamp which is one of the advanced transfer technologies.

• Journal of the KSME
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• v.20 no.6
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• pp.428-433
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• 1980

우리는 수차에 걸친 경제개발5개년 계획을 성공적으로 추진하여 오며 지금에는 공업구조의 고 도화 즉 중화학공업의 급속한 성장이 착실히 진전되어 나가고 있다. Plant산업은 기술축적이 기 반이 되어야 하는 것은 물론 양질의 기술축적 위에 완전한 품질보증체계를 갖추기 위하여는 전 사적 품질 보증체계를 갖추어야 한다. 이런 전사적 품질보증체계를 갖추기 위하여 미국기계기 술자협회(ASME)발생하는 ASME Boiler and Pressure Vessel Code에 의한 중공업부문및 원자력 발전소 부문의 설계 제조 시험에 대한 풍질보증장증(ASME Stamp)을 소개하고자 한다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.593-594
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• 2013

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1299-1303
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• 2005

Over the last decade the research of end-to-end behavior on computer network has grown by orders but it has few researching in hop-by-hop behavior. We think if we know hop-by-hop behavior it can make better understanding in network behavior. This paper represent ICMP time stamp request and time stamp reply as tool of network study for learning in hop-by-hop behavior to estimate link bandwidth and link structure. We describe our idea, experiment tools, experiment environment, result and analysis, and our discussion in our observative.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.535-536
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• 2006

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.10a
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• pp.671-672
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• 2009

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 1999.03b
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• pp.53.1-56
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• 1999

Using a new dynamic-explicity program SAIT_STAMP the analysis of forming a front door panel is presented. The analysis consists of 7 processes including drawing trimming flanging and springback. From the analysis results it is shown that adaptive refinement scheme and robust trimming algorithm enable SAIT_STAMP to simulate the multi-stage forming of automotive parts with large and complex geometry.

• Nuclear industry
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• no.6
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• pp.23-23
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• 1979

• Nuclear industry
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• no.9_10
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• pp.35-40
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• 1980