查询词典 variation method

In modern physics research, the calculus of variations has a broad application of law. As a solid mechanics, structural mechanics and computational mechanics of the theoretical foundation, it has important value in theory and practice on the mechanics; Variation method ruled out the perturbation of the restrictions can be widely used in many state-level and the state function in the calculation in the optical; Calculus of variations can be calculated with the parameters, we can guarantee the reliability of the results, can effectively reduce the workload of calculation, It can be said that the applications of calculus of variations are very broad.

在现代的物理学研究中，变分法有着广泛的应用：在力学上，变分法作为固体力学、结构力学及计算力学的理论基础，在理论上和实践上都有重要的价值；在光学上，变分法排除了微扰法的限制，可以广泛应用于诸多定态能级和态函数的计算中；在量子力学的应用中，具有可算出系统的参数，既可以保证计算结果的可靠性，又能有效地减少计算的工作量等的优点，可以说变分法的应用领域十分广阔。

On the basis of it, fully utilizing reservoir prediction new means such as coherent data cube analysis and seismic attribute analysis etc. as to geophysical characteristic of fissure and carven development of carbonate reservoir and seismic reversion variation after hydrocarbon-bearing, combined with stress analysis, gradually summarized a set of auxiliary method of predicting the fissure and carven of carbonate reservoir to service exploration and development of the field.

在此基础上，根据碳酸盐岩储层缝洞发育及含油气后地震反射发生变化的地球物理特征，充分利用地震相干数据体、地震属性分析、特征参数反演等储层预测手段，结合应力分析，探索和总结预测碳酸盐岩储层的岩性和缝、洞发育情况的地球物理方法，用于油田勘探开发。

Moreover, with its help people can also evaluate the fault-tolerant performance of ANN. In this paper, Chebyshev Inequality method, as a kind of evaluating thought, was firstly concerned in the faulttolerance analysis of ANN; 4. The variation of faulty behaviors of ANNs during the course of learning was studied by taking the discrete Hopfield neural network and Hebb learning algorithm as examples.

这种方法首次将切比雪夫不等式引入人工神经网络容错性分析当中，从而提出了对人工神经网络容错性分析采用估算的思想； 4 以离散型Hopfield神经网络和Hebb学习算法为例，着重研究了在学习过程中人工神经网络故障性能的变化。

We study the affection for the spectrophotometric method determination of sodium copper chlorophyllin in ratafee of all kinds of coefficiant of variation and obtain valuable results.

研究各种操作条件对分光光度法测定果酒中叶绿素铜钠的影响，得到了较有价值的结论。

Successful use of the variation method depends on our ability to make shrewd choice of the trial function.

成功地应用变分法取决于对尝试函数作精明选择的能力。

The coefficient of variation of the fluoride determination method was 5% at fluoride concentrations of approx.

在氟化物浓度为大约1000mg/kg的时候氟化物测定方法的变异系数为5%。

Standard deviation and coefficient of variation for the method were 0.0172 and 0.253%, respectively.

方法的标准偏差和变异系数分别为0.0172 和0.253%。

The recovery of the modified method is 96%～108% and the coefficient of variation is 1.7%～5.5%.

改进后的方法回收率为96%～108%，变异系数1.7%～5.5%。

The operation of this method is simple, quick and exact, and coefficient of variation is less than 1%.

双波长紫外系数倍率法简便、快速、准确，变异系数小于1％。

This method is simple,rapid and of satisfactory precision and accuracy as evidenced by coefficient of variation 1.92% and porcentage recovery

该法较为简便、快速，具有较高的精密度和准确度，测定值的变异系数为1.92％，加标回收率为96.2％－103.0％。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。