Results 301 to 310 of about 1,545,063 (318)

Estimations for Nonsymmetric Effective Coefficients

SIAM Journal on Applied Mathematics, 1994
Summary: During the past several years, several papers have been devoted to the study of composite periodic materials. In a simpler manner, the thermic conductivity of a composite material is considered here. If the periodicity directions do not coincide with the coordinate axes, the elastic matrix of components is not symmetric.
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Road Adhesion Coefficient Estimation

Applied Mechanics and Materials, 2011
Taking four in-wheel-motor electric vehicle as research subject, the paper focuses on the estimation of road adhesion coefficient based on curve. Through adding a forget factor, an improved algorithm on the basis of Forget Kalman Filter is proposed to estimate the slope of the curve at low slip rate.
Yan An Sun, Lu Xiong, Zhuo Ping Yu, Yuan Feng, Long Jie Ren   +4 more
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Estimate of interactive coefficients

2009 8th International Conference on Reliability, Maintainability and Safety, 2009
Engineering assets are often complex systems. In a complex system, components often have failure interactions which lead to interactive failures. A system with interactive failures may lead to an increased failure probability. Hence, one has to take the interactive failures into account when designing and maintaining complex engineering systems.
Sun, Yong, Ma, Lin
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Aircraft aerodynamic coefficient estimation

1977 IEEE Conference on Decision and Control including the 16th Symposium on Adaptive Processes and A Special Symposium on Fuzzy Set Theory and Applications, 1977
Advanced statistical and computational techniques have been applied to estimate aircraft aerodynamic coefficients from flight test data only during the last decade. This paper surveys the achievements during this period and discusses the state-of-the-art in aerodynamic coefficient estimation.
N. Gupta, W. Hall, R. Mohr
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Estimation of Fourier coefficients

IEEE Transactions on Instrumentation and Measurement, 1989
It is shown that the maximum-likelihood estimation or robust estimation of the Fourier coefficients may be preferable to Fourier transformation if the noise contains outliers or is otherwise not normally distributed. The reason is that, in that case, these estimators produce Fourier coefficient estimates and, therefore, system parameter estimates ...
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Estimating surface diffusion coefficients

Progress in Surface Science, 1995
General guidelines for correlating surface diffusion parameters have existed up to now only in loose form and for specialized cases. Based on a survey of over 500 systems (the largest currently in existence), we propose new correlations for the activation energy Ediff and pre-exponential factor Do for thermally activated surface diffusion on metals ...
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Estimation of rate coefficients

1971
The choice of an appropriate method for estimating a rate coefficient is dictated largely by the behaviour of the reaction system and the experimental procedures adopted for its study. Reliable results are usually the outcome of sensible planning of experiments, and, in this respect material balance graphs, such as those outlined in Chapter 3, can ...
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Estimation de Coefficients Homogenises

1979
L'homog~n~isation permet de trouver les ~quations sa t i s fa i tes par des grandeurs macroscopiques ~ pa r t i r des ~quations v~r i f i~es par les grandeurs physiques et de la composition microscopique (ou des informations qu'on poss~de sur la structure microscopique).
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Estimations of Homogenized Coefficients

1997
The homogenization method gives the possibility of finding equations satisfied by macroscopic quantities from equations satisfied by the physical quantities and from information on the microscopic composition (or on the microscopic structure).
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Estimated coefficients and inference

2014
An introductory section shows the behavior of quantile regressions in datasets with different characteristics, adding more details to the discussion developed in Section 2.2. Section 3.2, using simulated data, shows the empirical distribution of the quantile regression estimator in case of independent and identically distributed (i.i.d.) errors, in ...
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