• Proceedings of the Korea Society of Design Studies Conference
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• 2004.05a
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• pp.254-255
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• 2004

• Proceedings of the Korea Society of Environmental Biology Conference
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• 2002.05a
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• pp.23-23
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• 2002

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2003.05a
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• pp.396-401
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• 2003

송전전압의 대용량화에 따라 옥외용 절연재료 특히, 애자는 요업재료에서 소형화가 가능한 고분자 소재로 전환되고 있다 특히, 실리콘 고무는 다른 고분자 재료에 비해 내광성, 내열성, 산화안정성, 내후성이 우수하고 표면에너지가 낮아 발수성이 뛰어나서 습기나 오염 물질이 존재하는 환경에서도 누설전류를 제한하는 특성을 가지고 있으므로 재료표면의 손상에 따른 건조대 아크의 발생확률이 줄어들게 되므로 많이 사용되고 있다.(중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2010.04a
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• pp.456-457
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• 2010

• Journal of the Korean Professional Engineers Association
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• v.38 no.6
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• pp.13-18
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• 2005

Emphasized in this paper are past experiences of disasters by l kinds in Korea and various problems facing the country compared to those of Japan, together with definition of disasters both natural as well as man-made. In chapter 3, R&D subjects performed or to be performed by various research organizations in Korea are briefly introduced, and necessity of active investment to prevent those disasters are strongly suggested on the part of government.

• Korean Journal of Mathematics
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• v.19 no.1
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• pp.33-52
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• 2011

We prove the Hyers-Ulam stability of partitioned functional equations in Banach modules over a unital $C^*$-algebra. It is applied to show the stability of algebra homomorphisms in Banach algebras associated with partitioned functional equations in Banach algebras.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2009.10a
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• pp.373-374
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• 2009

• Journal of the Korean Mathematical Society
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• v.43 no.2
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• pp.259-269
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• 2006

We obtain a characterization of commuting Toeplitz operators with holomorphic symbols acting on the pluriharmonic Bergman space of the polydisk. We also obtain a characterization of normal Toeplitz operators with pluriharmonic symbols. In addition, some results for special types of semi-commutators are included.

• Proceedings of the KIEE Conference
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• 2006.07d
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• pp.1795-1796
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• 2006

The accurate measurement of soil resistivity and earthing system resistance is fundamental to electrical safety. However, geological and meterological factors can have a considerable effect on the accuracy of conventional measurements and the validity of the measurement methods. This paper presents optimization method of dc resistivity data acquisition system using multi-electrode arrays.

• Proceedings of the SAREK Conference
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• 2004.11a
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• pp.127-127
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• 2004