• Journal of the Korean Chemical Society
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• v.29 no.4
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• pp.459-461
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• 1985

• Communications for Statistical Applications and Methods
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• v.15 no.5
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• pp.719-726
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• 2008

In this paper we consider a joint test for seasonal cointegrating(CI) ranks that enables us to simultaneously model cointegrated structures across seasonal unit roots in seasonal cointegration. A CI rank test for a single seasonal unit root is constructed and extended to a joint test for multiple seasonal unit roots. Their asymptotic distributions and selected critical values for the joint test are obtained. Through a small Monte Carlo simulation study, we evaluate performances of the tests.

• 한국생물공학회:학술대회논문집
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• 2003.10a
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• pp.317-317
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• 2003

• Safe Food
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• v.7 no.3
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• pp.24-29
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• 2012

• Proceedings of the Korean Society of Food Hygiene and Safety Conference
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• 2001.10a
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• pp.141-144
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• 2001

• Communications for Statistical Applications and Methods
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• v.8 no.3
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• pp.739-751
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• 2001

In this paper, a sample design is studied for 2000 forestry management survey of five types forestry , tree felling, gathering of pine mushroom, growing of nut trees, growing of wild flowers, and lumbering industry. We introduce population stratification and a modified stratified cut-off sampling which deal with determination of sample size, sample allocation, and estimation of total and variance of estimator. Substitution of sample units and imputation of nonresponse units are discussed for reducing the nonsampling errors.

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.119.3-119
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• 2002

$\textbullet$ A bone-mountable surgical robot system for hip surgery $\textbullet$ A simple gauge-based registration method $\textbullet$ A proposed surgical procedure $\textbullet$ Evaluation method for position/orientation accuracy $\textbullet$ Evaluation method for surface conformity $\textbullet$ The performance evaluation of ARTHROBOT $\textbullet$ Summary

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.672-673
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• 2006

• Proceedings of the Korean Society of Plant Biotechnology Conference
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• 2005.11a
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• pp.431-431
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• 2005

• 한국정보디스플레이학회:학술대회논문집
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• 2002.08a
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• pp.743-745
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• 2002

We reported the possibility of color filtering of white method for achieving full-color displays using OELDs. Here, we fabricated white organic electroluminescent devices (OELDs) and drove moving images with a 384${/times}$160 pixel.