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Usefulness of AB/BA/AA/BB Crossover Design
Nam, Jusun,Kim, Dongjae 한국통계학회 2003 Communications for statistical applications and me Vol.10 No.1
In this paper, we discuss the usefulness of AB/BA/AA/BB crossover design sense of sample size. The result is that the AB/BA/AA/BB crossover design is more economical than AB/BA one if large carryover effect exists and so is it in the comparison with completely randomized design within-subject correlation is large.
Nonparametric Tests in AB/BA/AA/BB Crossover Design
Nam, Jusun,Kim, Dongjae 한국통계학회 2002 Communications for statistical applications and me Vol.9 No.3
Crossover design is often used in clinical trials about chronic diseases like hypertension, asthma and arthritis. In this paper, we suggest nonparametric approaches of Friedman-type rank test based on Bernard-van Elteren test and of aligned method keeping the information of blocks based on the AB/BA/AA/BB crossover design. The simulation results are presented to compare experimental error and power of several methods.
Sangwook Nam,Sinhyung Jeon,Jusun Won 한국전자파학회JEES 2016 Journal of Electromagnetic Engineering and Science Vol.16 No.2
In this paper, a method for identifying the appropriate position on the ground plane for antennas is proposed based on the current correlation coefficient (C³). This method explains that the mutual coupling between antennas when locating several antennas on the same ground plane is necessary. Given the current distribution on the ground plane induced by each antenna, easily estimating the coupling between antennas is possible. This paper also demonstrates that the proposed method can be used in the design of a multi-input multioutput system. The measured data are in good agreement with the simulation results.
범주형 자료에서 순서화된 대립가설 검정을 위한 정확검정의 개발
남주선,강승호,Nam, Jusun,Kang, Seung-Ho 한국통계학회 2013 응용통계연구 Vol.26 No.4
Testing of order-restricted alternative hypothesis in $2{\times}k$ contingency tables can be applied to various fields of medicine, sociology, and business administration. Most testing methods have been developed based on a large sample theory. In the case of a small sample size or unbalanced sample size, the Type I error rate of the testing method (based on a large sample theory) is very different from the target point of 5%. In this paper, the exact testing method is introduced in regards to the testing of an order-restricted alternative hypothesis in categorical data (particularly if a small sample size or extreme unbalanced data). Power and exact p-value are calculated, respectively. 범주형 자료에서 순서화된 대립가설을 검정하는 경우는 의학 사회학 경영학 등 다양한 응용분야에서 발생한다. 이러한 검정 방법은 대부분 대표본이론에 근거하여 개발되었다. 하지만 표본크기가 작거나 표본크기가 매우 불균등한 경우 대표본이론에 근거한 검정방법의 제 1종 오류 확률은 목표로 하는 5%와 멀어지는 경우가 많이 발생한다. 본 논문에서는 범주형 자료에서 순서화된 대립가설을 검정하는 경우 표본크기가 작거나 표본크기가 매우 불균등한 경우에 사용될 수 있는 정확검정방법을 소개하고 이에 대한 검정력 및 정확 p-value를 제시할 것이다.
N-Glycan Analysis of Recombinant Human Erythropoietin Produced by Different Cell Culture Methods
Ohseok KWON,Seonyeong BAK,Miseop CHOI,Keunjun KIM,Kyungju HAN,Youngjun SEO,Gihyun KIM,Kyungtak NAM,Jusun NAM,Youngeun KIM,Gisuk JUNG,Kyungmin BAEK,Sookyung SUH,Seunghwa HONG 한국생물공학회 2008 한국생물공학회 학술대회 Vol.2008 No.10