• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.359-360
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• 2001

헤테로고리 방향족 polybenzoxazole(PBO)은 대표적인 내열성 고분자로서, 고온에서의 열적안정성 및 내화학성, 기계적 물성, 방염성 등에서 우수한 성질을 나타낸다. 그러나 황산과 같은 강산에만 용해되기 때문에 가공성 면에서 단점을 가지고 있어 사용하는데 있어 제약이 따른단 현재 이러한 단점을 보완하기 위해 polyhydroxyamide(PHA)와 같은 전구체 고분자에 대한 연구가 많은 연구자들에 의해 진행되고 있다. (중략)

• Proceedings of the Materials Research Society of Korea Conference
• /
• 1993.11a
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• pp.39-39
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• 1993

• Proceedings of the Materials Research Society of Korea Conference
• /
• 2001.11a
• /
• pp.61-61
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• 2001

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 1993.11a
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• pp.22-22
• /
• 1993

• Proceedings of the Korean Fiber Society Conference
• /
• 2001.04a
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• pp.43-46
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• 2001

• Proceedings of the Korean Magnestics Society Conference
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• 2000.05a
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• pp.104-105
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• 2000

• Proceedings of the Korean Nuclear Society Conference
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• 2002.10a
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• pp.212-212
• /
• 2002

• Proceedings of the Korean Fiber Society Conference
• /
• 1997.10a
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• pp.445-450
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• 1997

• Journal of the Korean Society of Propulsion Engineers
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• v.22 no.2
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• pp.108-114
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• 2018

In this study, the thermal and rheological characteristics of a 10 wt.% addition of aluminum particles and the effect of the particle size were investigated to qualitatively analyze the paraffin fuel entrainment regression rate. The results revealed that the addition of aluminum particles and their relative particle size affected the rheological characteristics, rather than the thermal characteristics. Moreover, it was found that the variation of thermal properties had a minor effect on the entrainment regression rate, in comparison to the variation in rheological properties.

• Journal of Energy Engineering
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• v.20 no.1
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• pp.1-7
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• 2011

The performance and life-cycle costs of electric vehicle(EV) and hybrid electric vehicle(HEV) depend inherently on battery packs. Temperature uniformity in a pack is an important factor for obtaining optimum performance for an EV or HEV battery pack, because uneven temperature distribution in a pack leads to electrically unbalanced battery cells and reduced pack performance. In this work, a three-dimensional modeling was carried out to investigate the effects of operating conditions on the thermal behavior of a lithium-ion battery pack for an EV or HEV application. Thermal conductivities of various compartments of the battery were estimated based on the equivalent network of parallel/series thermal resistances of battery components. Heat generation rate in a cell was calculated using the modeling results of the potential and current density distributions of a battery cell.