• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.457-458
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• 2009

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.488-489
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• 2006

• Proceedings of the Korean Information Science Society Conference
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• 2007.10a
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• pp.32-33
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• 2007

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2007.06a
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• pp.153-154
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• 2007

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2002.10a
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• pp.376-380
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• 2002

This research presents modeling of a functional surface which is a constructed free-formed surface. The modeling introduced in this paper adopts polynomial regression that is utilizing approximating technique. The measured data are obtained from measuring with Coordinate Measuring Machine. This paper introduces efficient methods of Reverse Engineering using Polynomial Regression.

• 대한생식의학회:학술대회논문집
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• 2003.12a
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• pp.90-90
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• 2003

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.159-160
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• 2010

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.157-158
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• 2010

• Korean Journal of Medicinal Crop Science
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• v.20 no.5
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• pp.393-397
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• 2012

This study was investigated seed germination of Rheum undulatum L. depends on storage temperature (-20, $5^{\circ}C$ and room temperature), germination temperature (5, 15, 25 and $40^{\circ}C$) and a soaking treatment (no soaking, 2 days and 4 days). There was not much difference from the germination rate of R. undulatum L. in storage temperature conditions for 8 weeks. The highest of germination rate occurred over 80 percentage at $25^{\circ}C$. When R. undulatum L. was soaked with tap water for four days, the average values of germination velocity and germination day were represented of 1.7 ea/day and 1.68 days. These results may help our understanding of variations in germination characteristics for R. undulatum L. seeds treated under various germination conditions.

• Korean Journal of Pharmacognosy
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• v.35 no.2 s.137
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• pp.171-174
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• 2004

In order to examine the anti-ohyul (anti-inflammatory) activity of rhubarb, we investigated the effects of stilbene derivatives obtained from rhizomes of Rheum undulatum on the carrageenan-induced hind paw edema in rats. Administration of stilbene aglycon (rhapontigenin) at doses of 50 and 100 mg/kg exhibited the anti- edema effect in dose dependent manner and stilbene glycosides $(rhaponticin,\;piceatannol-3'-O-{\beta}-D-glucopyranoside)$ at a dose of 100 mg/kg also showed inhibitory effect on the carrageenan-induced edema. These inhibitory effects may ascribed, at least in part, to the anti-ohyul activity of rhubarb.