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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Weibull distribution with two parameters, shape (k) and scale (s) parameters are used to model the fatigue failure analysis due to periodic vortex shedding of the synovial fluid in knee joints. In order to determine the later parameter, a suitable statistical model is required for velocity distribution of synovial fluid flow. Hence, wide applicability of Weibull distribution in life testing and reliability analysis can be applied to describe the probability distribution of synovial fluid flow velocity. In this work, comparisons of three most widely used methods for estimating Weibull parameters are carried out; i.e. the least square estimation method (LSEM), maximum likelihood estimator (MLE) and the method of moment (MOM), to study fatigue failure of bone joint due to periodic vortex shedding of synovial fluid. The performances of these methods are compared through the analysis of computer generated synovial fluidflow velocity distribution in the physiological range. Significant values for the (k) and (s) parameters are obtained by comparing these methods. The criterions such as root mean square error (RMSE), coefficient of determination (R2), maximum error between the cumulative distribution functions (CDFs) or Kolmogorov-Smirnov (K-S) and the chi square tests are used for the comparison of the suitability of these methods. The results show that maximum likelihood method performs well for most of the cases studied and hence recommended.
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참고문헌 (24)
참고문헌 신청
M.A. Al-Fawzan / 2000 / Methods for estimating the parameters of the Weibull distribution, King Abdulaziz City for Science and Technology / Riyadh, Saudi Arabia
E.A. Balazs / 1968 / Viscoelastic properties of hyaluronic acid and biological lubrication / Univ Mich Med Cent J (Special Issue):255~259
E.A. Balazs / 1969 / Some aspects of the aging and radiation sensitivity of the intercellular matrix with special regard to hyaluronic acid in synovial fluid and vitreous / Thule International Symposium: Aging of connective and skeletal tissue
E.A. Balazs / 1970 / Chemistry and molecular biology of the intercellular matrix III / Academic Press
E.A. Balazs / 1967 / Hyaluronic acid in synovial fluid. I. Molecular parameters of hyaluronic acid in normal and arthritic human fluids / Arthritis Rheum 10:357~376
E.A. Balazs / 1968 / Viscoelastic properties of hyaluronic acid and biological lubrication / Univ Mich Med Cent J (Special Issue):255~259
E.A. Balazs / 1969 / Some aspects of the aging and radiation sensitivity of the intercellular matrix with special regard to hyaluronic acid in synovial fluid and vitreous / Thule International Symposium: Aging of connective and skeletal tissue
E.A. Balazs / 1970 / Chemistry and molecular biology of the intercellular matrix III / Academic Press
E.A. Balazs / 1967 / Hyaluronic acid in synovial fluid. I. Molecular parameters of hyaluronic acid in normal and arthritic human fluids / Arthritis Rheum 10:357~376
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