• 대한약학회:학술대회논문집
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• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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• pp.88-89
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• 2003

In recent days, the bioequivalence(BE) study of domestic drugs on original drug are quite, activated in Korea. This BE study provide not only the bioequivalence of test and reference drug but also produce the population pharmacokinetic(PK) parameters in normal healthy Korean. The BE study can also make it possible to establish a PK/PD model of the drug when the additional pharmacodynamic(PD) data are available. (omitted)

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 추계종합학술대회 논문집
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• pp.503-506
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• 1999

Recently, as increasing population of internet, the larger one of required facts is solution for access speed, that transmission performance. ADSL system can provide the best application to resident in low cost, flexible approach. In this paper, for DMT line code that is one of ADSL modulation/demodulation signal processing methods, transmission performance and characteristic are discussed as studies and analysis through computer simulation using MATLAB. We made results with practising simulation using parameters based on ANSI standard Tl .413 Iusse2.

• 한국해양학회지
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• 제15권1호
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• pp.62-65
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• 1980

1976년 7월부터 1979년 5월까지 3년간 진해만의 표층에서 격월로 식물성플랑크톤 군집 변화에 영향을 미치는 환경요인(수온, 염분도, pH, 투명도, 용존산소, Chlorophyll-a,c, NO$_{2}$-N 및 PO$_{4}$-P)에 대하여 조사했다. 9가지 환경요인이 식물성플랑크톤 군집 변화에 37.20% 영향을 미치고 있었으며 각각의 환경요인으로는 PO$_{4}$-P, 투명도, Chlorophyll-a, 수온, 염분도 등이 중요한 요인이었으며 용존산소, NO$_{2}$-N, pH 및 Chlorophyll-c 는 크게 영향을 미치지 않고 있었다.

• Journal of the Korean Statistical Society
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• 제24권2호
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• pp.313-335
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• 1995

Suppose that we have $k(k \geq 2)$ populations (or systems), say $\pi_1, \cdots, \pi_k$, to be tested. Under the type-II censored testing without replacement we consider the problem of estimating the unknown parameters of interests and the reliability for a given time t for each population. Also we compare the perfomances of the proposed Bayes estimators with another estiamtors under the Jeffrey-type noninformative prior distribution.

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 2000년도 춘계수산관련학회 공동학술대회발표요지집
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• pp.328-329
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• 2000

This research is to estimate population parameters of the Korean horse mackerel stock and to determine the status of the stock. Considering the linkage of recruitment with the variation of environmental conditions in the early life history, acceptable biological catch (ABC) of horse mackerel was estimated. (omitted)

• 산업경영시스템학회지
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• 제13권21호
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• pp.81-90
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• 1990

In stratified random sampling a simple random sample must be taken in each stratum to reduce the maximum gain in precision given the minimum cost. The purpose of this paper is to deal with the propertics of the estimates and variances and obtain the economic design of stratified random sampling through the optimum allocation of the sample sizes. In addition, the between stratum variation and the within stratum variation is stratifying the population are described.

• Fisheries and Aquatic Sciences
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• 제14권2호
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• pp.111-117
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• 2011

The population dynamics of Pandalus gracilis was investigated in the southeastern coastal area of Korea between May 1998 and April 2000. Of the 4,127 specimens, 57% were identified as females, 39% as males, and 4% as transitional hermaphrodites. The number of females was greater than that of males and transexuals. A significant correlation was observed between the number of transitional hermaphrodites and ambient seawater temperature. Growth parameters were estimated using the modified von Bertalanffy growth function model incorporating seasonal variation in growth using the program ELEFAN. Females grew faster and reached a larger size-at-age than males (K=0.65/y and $L_{\infty}$=17.86 mm carapace length [CL] for females; K=0.51/y and $L_{\infty}$=14.70 mm CL for males). Mean size and age (95% confidence limits) at sex transition, calculated from growth parameters, were 7.07 mm carapace length and 1.05 years, respectively. The reproductive strategies of pandalid shrimps are discussed in terms of the type of sex transition.

• Journal of the Korean Data and Information Science Society
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• 제21권3호
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• pp.481-491
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• 2010

수강하는 학생 개개인이 응답한 여러 개의 파일을 한 파일에 모은 다음 이 자료를 가지고 난수생성, 표본추출 과정과 방법, 모수와 통계량을 비교하는 프로그램을 엑셀 매크로로 작성하였다. 모집단에서 일부분의 표본을 추출하여 모수와 통계량의 차이를 비교하는 등 자료의 생성, 분석, 결과의 해석을 빠른 시간내에 해결하여 학생들이 흥미를 가지고 수업에 참여하도록 유도한다. 엑셀에서는 난수발생시 중복된 값이 발생하는데 본 연구에서는 비주얼베이직 매크로로 비복원추출 프로그램을 작성하여 활용한다.

• 대한기계학회논문집A
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• 제33권11호
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• pp.1314-1319
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• 2009

The design methods of mechanical systems are largely classified into deterministic methods and stochastic methods. In deterministic methods, design parameters are assumed to have fixed values. On the other hand, in stochastic methods, design parameters are assumed to be statistically distributed. When a stochastic method is employed, statistical characteristics of the populations of design variables are assumed to be known. However, very often, it is almost impossible or very expensive to obtain the statistical characteristics of the populations. Therefore a sample survey method is usually employed for stochastic methods. This paper describes the procedure of estimating the statistical characteristics of populations by employing sample data sets. An example of AFM micro cantilever beam is employed to show the effectiveness of the procedure.

• Communications for Statistical Applications and Methods
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• 제22권2호
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• pp.137-146
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• 2015

Singh (2013) considered the dual problem to the calibration of design weights to obtain a new generalized linear regression estimator (GREG) for the finite population total. In this work, we have made an attempt to suggest a way to use the dual calibration of the design weights in case of multi-auxiliary variables; in other words, we have made an attempt to give an answer to the concern in Remark 2 of Singh (2013) work. The same idea is also used to generalize the GREG estimator proposed by Deville and S$\ddot{a}$rndal (1992). It is not an easy task to find the optimum values of the parameters appear in our approach; therefore, few suggestions are mentioned to select values for such parameters based on a random sample. Based on real data set and under simple random sampling without replacement design, our approach is compared with other approaches mentioned in this paper and for different sample sizes. Simulation results show that all estimators have negligible relative bias, and the multivariate case of Singh (2013) estimator is more efficient than other estimators.