• The Journal of the Korea institute of electronic communication sciences
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• v.5 no.4
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• pp.480-485
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• 2010

In this paper, we developed mobile robot platform called Ecobot for the application system of friendly environment smart home appliance. Ecobot fulfills the purposes of monitoring of the healthy environment and guidance in the application system of friendly smart environment home appliance, home network formed by Zigbee network. For the healthy environment, the system contains monitoring sensor. Moreover, it continuously keeps the healthy environment by controlling the smart home appliances linkng with Zigbee network. And also using the URG-04LX laser distance sensor, it monitors indoor environment through autonomous moving and collision avoidance.

• Journal of Korean Library and Information Science Society
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• v.42 no.1
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• pp.339-367
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• 2011

This study presents the publication of books by Guam LeeJung who is a Confucian scholar and a public official in 16th century. He played important roles in editing, correcting, and publishing of 20 books, of which 3 books were edited and published by him; 4 books corrected and published; and 12 books published. His works were helped by contemporary scholars and officials such as LeeWhang, NamgungChim, KimChungkap, and KimHong. All the books are related with Confucian studies except one book, and they were published in the period from 1554 and 1566 when he serve as the head of counties, Sungju(성주), Kyungju(경주), and Sunchun(순천). The publication record of one book is unclear, and all others were printed with woodblocks.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.240-241
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• 2007

연자성 분말의 독특한 특성은 3D 등방성 강자성체 이며, 이 때문에 3차원적 자속(flux)를 활용할 수 있어 전기 강판(sillicon steel)에 비해 3차원 성형시 유리한 장점을 가지고 있다는 점이다.[1] 따라서 본 논문에서는 연자성 분말 (Soft Magnetic Composites)의 3차원 성형시 각 성형 형태에 따른 압분 시료의 전기적, 기계적 특성에 대한 연구를 하였다. 연자성 분말의 코어 형상을 크게 ' '형으로 구분하여 압분 코어를 만든 후 압분 코어의 Overhang 각도 및 코어 Teeth의 길이에 따른 파라미터에 변화를 주어 철손 및 경도, 밀도를 측정 하였다. 이 논문에서 우리는 3차원 코어 성형시 전기적, 기계적 특성이 가장 우수한 코어 성형 조건을 연구해 낼 수 있었다.