查询词典 validity

Sensitivity, specificity, validity, positive predictive value, receiver operator characteristic curve were used to assess the diagnostic Value of PAIg.

临床医师经常应用血小板相关抗体(PAIgG、IgA、IgM)是否增高作为一项重要的辅助诊断依据。

So two methods are used to remove the local relation. One is that extremal index is introduced to POT model. The analysis showed that the introduction of extremal index improves validity and veracity of VaR based on POT model. Still VaR based on POT model introducing extremal index is invalid in low confidence level. The other is to filter returns series using GARCH model.

为此引入两种方法来消除超阈值的局部相关性：一是将极值指标引入到POT模型中，实证分析发现极值指标的引入不仅改善了POT模型估计VaR的有效性，而且还提高了POT模型估计的准确性，尽管如此在较低的置信水平上即便引入极值指标，POT模型估计VaR仍是无效的；二是用GARCH模型对收益率序列进行过滤处理。

Then,with an example of potential flow around a ball,the validity and reliability of the algorithm were verified.

并以计算圆球势流压力分布为例，验证了该算法的有效性和可靠性。

Based on the power series expansion of the general flexible matrix of the sub-system, a general expression of the dynamic stiffness matrix of the reduced model was derived from the exact expression of the reduced model for the direct substitution dynamic condensation methods. The general expression was also expressed as a power series of the unknown eigenvalues. After that, the validity and error of the Guyan condensation method were analyzed.

对于动力缩聚直接代入法，本文从降阶模型的精确表达式出发，利用子系统广义柔度矩阵的幂级数展开式，导出了降阶模型动刚度矩阵的一般表达，并把它表示为未知特征值的幂级数形式，在此基础上对 Guyan缩聚法的适用范围和误差进行了一般分析。

Some examples are calculated and by comparing the results with those obtained by the power series method, the validity and some excellences of the B-spline function method, such as wider convergent range, higher precision and less amount of computing time, are demonstrated.

所得结果很理想，验证了样条函数在此问题上的有效性，并在收敛速度、收敛范围、计算精度等方面体现了此法的优越性。

In addition, the validity and practicability of the proposed algorithm has been proved by the simulation results.

文中对所提出的算法进行了计算机仿真，仿真结果证明了该算法的正确性和实用性。

The simulation results show that this system has good validity and practicability in simulation engineering.

仿真结果表明，该系统具有很强的工程实用性和通用性。

Experimental results indicate the validity and practicability of our design.

实验结果表明了该系统设计的科学性及实用性。

Finally, an example is applied to demonstrate the practicability and validity of this approach.

最后，通过算例说明了该方法的可行性和有效性。

Simulation experiments prove the practicability and validity of this model.

仿真试验验证了该模型的实用性和有效性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。