A new method of estimating concrete strength representative value by means of a confidence lower limit is presented in this paper, and one-side tolerance factor expression is given.
提出了用置信下限作为混凝土检验批强度标志值的估计量的新方法，给出了单侧容限系数的表达式。
This paper presents a method for estimating the elastic-plastic dynamic J integral value by finite element analysis.
本文介绍用有限元估算弹塑性动态j积分值的方法。
The paper studied how to apply the theory of extreme value to the VAR method to rise the degree of estimating precise, and made empirical analysis.
论文研究了如何将极值理论与VAR计算方法相结合进行应用以提高计量精度，并对其作了实证分析。
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