• Proceedings of the KIEE Conference
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• 2005.05b
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• pp.75-78
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• 2005

The decisive criteria to determine collection performance is the contact force between pantograph and catenary. The contact force consists of a static force and dynamic force related to vibration characteristics, train speed and etc. The low contact force leads to the loss of contact, and most countries regulate it below 1% at operation speed. This study presents a technical overview of criteria for collection performance of catenary system.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.179-182
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• 2002

실크(silk)는 생체적합성을 가지고 있어 수술용 봉합사나 창상피복재와 같은 의료용품, 식품 첨가물 및 화장품 산업 등의 분야에 널리 쓰인다. 또한 전기방사는 그 원리가 간단하고 장치 또한 경제적이며 방사되는 부직포는 대부분 나노 사이즈의 섬유로 형성된다는 장점을 가지고 있다. 본 연구에서는 여러 가지의 전기방사 공정인자를 고려하여 실크 피브로인 방사의 최적 조건과 몇몇 인자들의 영향을 알아보았다. (중략)

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.478-480
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• 2002

피부란 인체를 외부의 자극으로부터 보호하며 수분의 손실을 막아주는 기능을 수행하는 중요한 장기 중의 하나이다. 피부가 화상이나 각종 외상에 의하여 결손이 일어나게 되면 그 보호작용이 상실되어 기능의 장애를 일으키게 된다. 또한 수분손실에 따른 여러 가지 부작용과 외부로부터의 세균감염 등을 일으켜 환부의 치료를 어렵게 하거나 2차적인 기능장애 또는 손상 등과 같은 추가적인 부작용을 초래하게 된다. (중략)

• Proceedings of the KOSOMBE Conference
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• v.1994 no.12
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• pp.193-193
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• 1994

• Proceedings of the KIEE Conference
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• 2001.07b
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• pp.1263-1265
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• 2001

This study presents accurate simulation to examine a reason rail potential rise and how to design ground connection(Cross Connection Cable, CCC) and draw up a plan of an optimal buried grounding system according to section.

• The Journal of the Korean dental association
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• v.12 no.7
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• pp.473-475
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• 1974

The author observed the distribution of mast cells in the hard palate wound healing of healthy male albino rats weighing about 100gm. The mild wounds were made antero-posterior linealy by sugical knife. The results were as follow : 1. At the from three days to five days after wound, the number of mast cells were markedly increased. 2. In the wound healing process, mast cells were more distributed in the lamina propria than in the submucosa.

• The Journal of the Korean dental association
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• v.20 no.7 s.158
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• pp.625-630
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• 1982

The author observed the behavior of inflammatory cells in the primary intension of incisional wound on the Albino rat palate. The superficial wounds (0.5mm depth) were made anteroposterior lineally by surgical knife. They were sacrified on 4, 8, 12, 16, 24, 48, 72 and 120 hr after wounding. The specimens were fixed in 2.5% glutaraldehyde in 0.1 M cacodylate buffer and 1% osmic acid in 0.1M cacodylate buffer, and embeddd in Epon 812. Ultrathin sections were obtained by LKB 8800, and stained with uranyl acetate/lead citrate, and observed with Corynth 500 EM.

• Journal of Periodontal and Implant Science
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• v.20 no.2
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• pp.171-171
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• 1990

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.575-576
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• 2006

• Proceedings of the KSR Conference
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• 2001.10a
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• pp.316-321
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• 2001

The maximum span length is decided by the relation among the independent factors of rail, train and catenary. However, During the calculation of the maximum span length with the way of Kyung-Bu High railway design using by the commercial program $\ulcorner$MATLAB$\lrcorner$ the mathematical error was founded. Therefore, this paper presents the analysis of the reason why caused the mathematical error occur.