• Bulletin of the Society of Naval Architects of Korea
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• v.50 no.2
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• pp.69-72
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• 2013

• Proceedings of the Costume Culture Conference
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• 2002.06a
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• pp.39-41
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• 2002

• Conservation Science in Museum
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• v.28
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• pp.89-108
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• 2022

Among about 500,000 characters in metal types in National Museum of Korea, this study conducts a statistical analysis of 62 metal types from the early Joseon Dynasty, including 33 gabinja (甲寅字) types and 29 eulhaeja (乙亥字) Hangeul types by examining the shape, measuring the specific gravity, and identifying the components based on previously-studied Joseon metal types. Among them, 33 gabinja types and 24 eulhaeja types were made of two-component bronze (copper and tin) (Group A), and four eulhaeja types were produced with three-component bronze (copper, tin and lead). (Group B), and one eulhaeja type was created with two-component bronze (copper and tin) with a high tin content (Group C). By comparing with imjinja (壬辰字) types of the late Joseon Dynasty based on multiple statistical analyses of type components, this study confirms that late-Joseon types have low copper content and high zinc and lead content, and therefore it may be possible to distinguish between the types of early and late Joseon Dynasty.

• Electric Engineers Magazine
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• s.340
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• pp.24-25
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• 2010

• 전기산업
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• v.7 no.2
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• pp.110-113
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• 1996

• Journal of the Korean Society of Marine Environment & Safety
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• v.27 no.6
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• pp.856-866
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• 2021

The increasing international awareness regarding air pollutant reduction has resulted in increasing demand for eco-friendly ships; hence, electric ships are being actively developed by various countries. Presently, studies on electric ships are mainly focused on electric propulsion systems and electric motors. However, from the ship perspective, there are no studies on conceptual designs for coastal car ferries powered by removable power supply systems. In the present study, the main research consideration is regarding the conceptual design of a fully electrified car ferry using a battery-based removable system as the main power source. By analyzing the dimensions of more than 100 domestic coastal car ferries, the main criteria satisfying the requirements for developing a suitable vessel were derived, and a study on intact/damage stability was conducted considering the application of a removable battery truck. Further analyses of the problems concerning the conceptual design were also performed to derive solutions.

• 전기의세계
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• v.15 no.2
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• pp.19-21
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• 1966

본고에서는 교과과정 실험실습, 시설을 중심으로 소개하고자 한다. 1. 교과과정의 개요 2. 실험실습과정의 개요

• Bulletin of the Society of Naval Architects of Korea
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• v.49 no.2
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• pp.60-65
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• 2012

• Journal of Korean Library and Information Science Society
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• v.11
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• pp.241-257
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• 1984

우리나라의 인쇄문화를 꽃피웠던 조선조에 있어서 교서관은 전기 및 후기 즉 전대를 통하여 서적의 인출을 관장하던 기관으로 조선조 문화창달의 산실이었다고 볼 수 있을 것이다. 그러므로 이어서 인출된 서적에 관한 연구는 즉 조선조의 관판에 대한 분석의 일환으로서 이를 통해 당시의 시대 사상 및 문화의 특징을 알수 있는 바, 본 연구에서는 우선 교서관 자체의 변천 과정 및 그 기능과 함께 조선왕조 후기에 있어서 가장 문운이 진작되었던 정조조을 중심으로 당시 교서관을 통해 간행되었던 서적들의 성격을 규명해 보고자 한다.

• 전기의세계
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• v.58 no.5
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• pp.18-26
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• 2009