• Journal of Welding and Joining
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• v.26 no.1
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• pp.31-36
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• 2008

• Journal of Welding and Joining
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• v.25 no.2
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• pp.6-15
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• 2007

• Proceedings of the Plant Resources Society of Korea Conference
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• v.18 no.1
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• pp.144-144
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• 2005

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1751_1752
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• 2009

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 ERT.

• Journal of Welding and Joining
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• v.26 no.2
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• pp.37-42
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• 2008

• Proceedings of the Korean Society of Crop Science Conference
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• 2018.04a
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• pp.152-152
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• 2018

• Proceedings of the Korean Society of Crop Science Conference
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• 2018.04a
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• pp.151-151
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• 2018

• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.25-25
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• 2003

No Abstract, See Full Text

• Bulletin of the Korean Chemical Society
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• v.6 no.6
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• pp.333-337
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• 1985

Cholesteryl formate$(HCOOC_{27}H_{45})$ is monoclinic, space group $P2_1$ with a=15.757(1), b=6.073(1), c=13.592(2) ${\AA},{\beta}=94.1(1)^{\circ},Z=2.$ Intensities were measured, using an automatic diffractometer with graphite-monochromated $Cu-K{\alpha}$ radiation. The structure was solved by a direct method and refined by least-squares method. The final R factor was 0.087 for 1640 observed reflections. There are no unusual bond distances and angles. The molecules are arranged in antiparallel array forming monolayers of thickness $d_{100}=15.757{\AA}.$ Adjacent cholesteryl ring groups by the translation operation along the b axis.

• Proceedings of the KSCN Conference
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• 2005.04a
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• pp.180-180
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• 2005