• The Korean Journal of Applied Statistics
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• v.33 no.3
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• pp.229-238
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• 2020

The very first statistics department in Korean universities was founded in 1962, meaning it has been 57 years since Korean academia has regarded statistics as a wholly independent field of study. Dr. Junbo Kim was the first faculty member hired by Korea University's statistics department. He made a seminal contribution to the development and publication of statistics textbooks in those early years, and in 1971, spearheaded the efforts to found the Korean Statistical Society, serving as its first president. Naturally, Dr. Kim's significant contributions have laid the cornerstones for the advancement of statistics as an independent field of study in Korea. In this paper, I will explore two main subjects: one is the early history of the Korean Statistical Society with a special emphasis on Dr. Kim's contributions, and the other is an analytical overview his publications. Specifically, I will focus on Modern Statistics: A Synthesis of Statistics and Estimates』(Kim, 1954), and 『Inferential Statistics: An Introduction to Sample Survey and Experimental Design』(Kim, 1956).

• Journal of the Korean Statistical Society
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• v.1 no.1
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• pp.3-10
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• 1973

오늘날 각국에 널리 통용되고 있는 물가지수의 작성법은 반드시 개관적 지표성을 뚜렷이 인정할만한 정립된 이론의 토대 위에 서있는 것같지 않다. 지금 우리에게 보편적 산식이 되어있는 Laspeyres식을 본다 할 때 대상상품의 종목이나 가중치의 결정방법도 문제려니와 기준시점(연도)의 이동에 따른 전후 지수체계의 불가피한 비연결성은 치명적 결함의 조건이다.

• Journal of the Korean Statistical Society
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• v.4 no.1
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• pp.33-38
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• 1975

In the use of traditional autogressive linear equation, there are number of obvious limitations which may not be conventioanally neglected. This paper attempts to disclose some of them with respect to the assumptions made about error terms, conditions of convergence of the equation, prperties of estimators, etc.

• Transactions of the Korean Society of Automotive Engineers
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• v.4 no.6
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• pp.27-38
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• 1996

A two-dimensional FEM program, which considers bending effects in the membrane fromulation, was developed under plane strain assumption for analyzing forming processes of an arbitrarily shaped draw-die of automotive panels. For the evaluation of bending effects with membrane elements, the bending equivalent forces and stiffnesses are calculated from the bending moment computed using the changes in curvature of the formed shape of two membrane ones. The curves depicted with 3 nodes are described by a circle, a quadratic equation, and a cubic equation, respectively, and in the simulation of the stretch/draw sections of an automotive inner panel, three different description results are compared each other. Also, the bending results are compared with membrane results and measurements in order to verify the validity of the developed program.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.22 no.3
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• pp.493-503
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• 1998

The sectional forming analysis considering bending effects from the geometrically deformed shape of two linear membrane finite elements(called super element) was performed under plane strain assumption for analyzing forming processes of an arbitrarily shaped draw-die. For the evaluation of bending effects, the bending equivalent forces are calculated from the bending moment computed using the changes in the interior angle at the middle node of super element, and are agumented to the membrane stretch forces. In order to verify the validity of the bending formulation, the simulation results for the stretch, draw, and bend sections were compared with membrane analysis results and measurements.

• Journal of the Korean Statistical Society
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• v.5 no.2
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• pp.109-118
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• 1976

현행 일반적으로 쓰여지고 있는 물가지수 산식은 기준시점의 거래량(또는 거래금액)을 상품별 가중치(weight)로 삼는 가중총합방식(weighted aggregate formula, 또는 가중산술평균산식)으로서의 Laspeyres식이라 함은 주지하는 바와 같다. 그것이 상품별로 유통면의 중요성을 분명히 감안하여 있고, 비교시점의 가격변동만이 계산에 반영된다는 점에 있어서 물가지수로서의 실용성이 널리 인정되어 있는 산식이다. 그러나 Lasperyres식의 난점을 또한 많은 것이니 그 가운데 특히 가중치의 고정성과 관련하여 기준시점의 이동에 따른 전후 물가지수의 비연결성은 결정적 결함이라 할 수 있다. 여기에 이 식의 지수적 허구성이 흔히 논의되고, 이른바 Paasche check라 하여 수시로 조사한 거래량(또는 거래금액)에 의하여 물가지수의 가중치로 삼아서 전자를 검정하는 방법도 쓰여지는 형편이다. 필지는 일찌기(1973년) Laspeyres식의 상품별 가중치에 관한 객관적 평가법의 하나로서 산업(따라서 상품)의 연관분석적 수단에 의한 약간의 시안을 발표한 바 없지 않았다. 그것은 요약컨대 산업연관분석에 쓰이는 투입계수표를 중심삼아 한 상품가격이 다른 상품가격에 미치는 파급효과, 따라서 물가에 미치는 파급력을 계산하고, 나아가서 각 상품의 수요 및 공급함수를 도입하여 그들 계수를 추정함으로써 가중치의 객관화를 꾀해 본 것이 전고의 골자이다.