有效性

For get better denotation the damage information, a method named of the residual angle projection method is taken to treat the damage vector.

结果表明了在变时基参数识别基础上，模型修正方法对损伤信息提取的有效性和稳健性。

In addition, because of making full use of the dynamics property of the system, the proposed control scheme also needs not feedback and measure the position, the linear and angular velocity and acceleration of the free-floating base.

一个平面两杆漂浮基空间机械臂的系统数值仿真证实了该方案的有效性。

Simulation results demonstrate that our models and the corresponding algorithms are effective, the performance is improved by the polarity and the 1-order approximate model is blind to the angular distribution.

仿真结果证实了该模型和算法的有效性，表明了极化的引入对估计性能有很大提高，以及一阶近似模型对角度分布函数的盲性。

Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.

首先基于经典层板理论，将复合材料层板的弹性问题化归为均匀各向异性板来求解；采用各向异性体平面弹性理论中的复势方法，以Faber级数为工具，给出了有限大含椭圆核各向异性板弹性问题的级数解形式；利用杂交变分原理，成功导出含椭圆核各向异性板杂交应力有限元，并用算例验证了该单元的可行性和有效性；采用含刚度折减椭圆形弹性核的冲击损伤模型，引入基于特征曲线和Yamada-Sun破坏准则的点应力判据，建立了含损伤复合材料层板剩余强度的分析方法；通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响，得到了一系列对工程应用具有实用价值的结论。

Numerical and experimental results of the new type of annular branch hybrid demonstrated the accuracy and efficiency of the proposed method.

通过新型环形分支电桥的数值结果与实测结果验证了本文方法的准确性和有效性。

The results of the experiment show that the anomaly detection method based on principal component analysis is effective.

实验结果证明了基于主成分分析的异常检测方法的有效性。

Analytical and experimental results show that this algorithm is effective in anomaly events detection and data compression.

仿真结果验证了预测模型的正确性和有效性，表明该模型能够实时检测异常事件和压缩数据处理。

Please note that Hotel Antares's wellness centre is closed on Wednesday.

酒店有权利在客人入住之前检查信用卡的有效性。

Results of experiments on a designed antenna show validity of the method.

设计天线的测试结果验证了本方法的有效性。

This paper proves that XFPD has better performance than WL in the work of mining XML frequent patterns theoretically and experimentally, and gives a proof of the validity and feasibility of the XML data storage method presented in this paper by the implementation of an antetype model.

本文从理论和实验两方面证明了在挖掘XML频繁模式时，XFPD算法比WL算法具有更加良好的性能，并通过一个原型系统的实现，验证了本文提出的XML数据存储方法的有效性和可行性。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。