有效性

Based on this, a liquid nitrogen cooled screen device is developed to control the radiation degradation of deuterium lamp.

建立了氘灯真空辐射特性测试系统，利用该系统对液氮制冷屏装置的有效性进行了考察。

Quality control of medical equipment is very important to the diagnostic accuracy and the cure effect.

医疗设备质量控制对提高医疗诊断的准确性和治疗结果的有效性起着非常重要的作用。

In chapter one, firstly, we introduce the properties of αdiagonally dominant matrix and some exists determination conditions of generalized strictly diagonally dominant matrix, then we give some new results for the criteria of generalized strictly diagonally dominant matrix, finally, we show the validity of these conclusions.

在第一章中，首先引述了α-对角占优矩阵的性质及已有的一些判定条件，给出了判定广义严格对角占优矩阵的几个新的结论，最后说明了这些结论的有效性。

In this paper,the autocorrelation efficients are proved not suitable for testing the efficiency of stock market and then Dickey Fuller test is gived to test the efficiency of weak form of the SSE.Four month daily closed pri...

本文首先指出利用自相关系数进行检验的不合理性，然后给出了DF检验，最后利用1995年7月至10月4个月的每日股票收盘价检验了5种上市公司股票，它们都满足弱有效性

The result shows that the algorithm is feasible and effective in the fault diagnosis of diesel valves.

结果表明，该算法在柴油机气阀故障诊断中具有可行性和有效性。

The relation between difference equation and differential equation is studied by analyzing the mechanism in building grey models, and a "bridge" is set up between difference equation and differential equation by sampling theorem and state transition matrix.

通过对灰色系统模型建模机理进行深入剖析，利用采样定理和状态转移矩阵在差分方程和微分方程之间架起一座桥梁，通过算例仿真实验证明了该算法的有效性。

Based on reliability analysis of frame structure, in this paper, the relative difference quotient methods is used for optimization of the frame structure, and a iteration scheme to find the optimum solution is presented.

以框架结构系统的可靠性分析为基础，给出离散变量框架结构可靠性优化的相对差商方法及迭代格式，并用算例证明了该法的有效性及实用性。

In the study, the core conception is exchange; the key point is the efficiency of the exchange,and attention should be paid to the specific character and differentia.

本文认为，营销学是一门研究交换的科学，也是一门不断创新的科学，其核心概念是交换，研究重点是交换的有效性，强调的是个性与差异化。

Finally the terminal rule of Genetic Algorithms has been proposed and the implementation of random number maker has been presented. Developed a genetic algorithms based system identification technique. Using this technique globally optimized models for linear and nonlinear system can be identified without the need of a differentiable cost function or linearly separable parameters.

然后提出了一种基于遗传算法的模型降阶方法，可一致地应用到连续系统和离散系统的模型降阶；最后提出了一种基于遗传算法的多目标通用控制器设计方法，可以满足不同的控制策略，而不是某一种特定的控制策略，计算机仿真结果充分验证了方法的正确性和有效性。

After that, the model was applied to continuously differentiable optimization and nonlinear or implicit complementarity problems.

此外，还将所研究的模型应用于闭凸约束极小化问题以及非线性互补问题和隐互补问题中，并通过数值模拟说明了该神经网络方法的有效性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。