• Title/Summary/Keyword: 종형

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유한요소법을 이용한 조선조식 종형 구조물의 동적 해석

  • 정석주;공창덕;염영하
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.9 no.3
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    • pp.309-318
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    • 1985
  • 본 논문에서는 종형 구조물의 특미인 비대칭성을 고헌할 수 있고 굽힘에너지 (flexural energy)와 확장에너지(extension energy)를 모두 고헌하여 유한요소의 분할 이 용역한 사변형과 삼각형 판-셸 유한요소를 사용하였다.

Estimation of Asymmetric Bell Shaped Probability Curve using Logistic Regression (로지스틱 회귀모형을 이용한 비대칭 종형 확률곡선의 추정)

  • 박성현;김기호;이소형
    • The Korean Journal of Applied Statistics
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    • v.14 no.1
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    • pp.71-80
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    • 2001
  • Logistic regression model is one of the most popular linear models for a binary response variable and used for the estimation of probability function. In many practical situations, the probability function can be expressed by a bell shaped curve and such a function can be estimated by a second order logistic regression model. However, when the probability curve is asymmetric, the estimation results using a second order logistic regression model may not be precise because a second order logistic regression model is a symmetric function. In addition, even if a second order logistic regression model is used, the interpretation for the effect of second order term may not be easy. In this paper, in order to alleviate such problems, an estimation method for asymmetric probabiity curve based on a first order logistic regression model and iterative bi-section method is proposed and its performance is compared with that of a second order logistic regression model by a simulation study.

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