计算公式

The according mathematics model and formula of characteristic value and inherent frequency were inferred and established.

固有频率的计算公式，并用实际算例对力学模型的合理性和数学模型的正确性进行了验

Stand on a base of upper study, this paper choose distribution map of agriculture and stock raising in seven different historical age as basic material, sum up ten agro-geology environmental factors into Loess plateau Area's AEG system, and cover all these factor's component parts map on distribution draft of every period's agricultural and pastrol, then measure the occupying proportion, bring results into fomula of factor information entropy, finally, take average value of ten factor's information entropy in each period as its characteristical AEG system entropy value.

在以上研究的基础上，论文选择黄土高原地区七个历史时期的农牧业分布图作为基本资料，将该区的十个地质环境要素纳入农业环境地质系统中，将其类别分布图与上述农牧业分布图进行叠加量测，结果代入要素系统熵计算公式，求得了十个农业地质环境要素在各个历史时期中的系统熵，对每个历史时期的这十个熵值求算术平均值就获得了该历史时期黄土高原地区总的农业环境地质系统熵。

Through above study, the theoretical analysis of the inherent fault tolerance of feed-forward neural networks has been extended from hard-limit activation functions to differentiable activation functions; 2. By using above method, fault tolerance of discrete Hopfield feedback neural networks have been also analyzed. It means that the above method can be applied not only for feed-forward neural networks but also for feedback neural networks; 3. For the feed-forward neural network with the Sigmoid activation function, Chebyshev Inequality method was presented.

这项研究将以前仅限于对硬限幅作用函数前向神经网络固有容错性能的理论分析推广到具有可微作用函数的前向神经网络； 2 针对离散型Hopfield反馈神经网络，利用上面提出的方法，对其同样进行了容错性分析，得出许多有用的结论和计算公式，说明上面提出的方法不仅适用于前向神经网络，同时也适用于反馈神经网络； 3 针对具有Sigmoid作用函数的前向神经网络提出了一种切比雪夫不等式法。

An exact solution of velocity distribution for Couette shear flow in a non circular conduit with axial symmetry section is obtained in this paper.

从N S方程出发，得到了轴对称异型断面管纯剪切流动速度分布的一般解，进而推出了纯剪切流动有限宽度矩形断面管的速度分布和流量计算公式，证明了库特剪切流是有限宽度矩形断面管当宽度趋向无穷大时的一种特例。

In this paper, we introduced very much and compared elasticity damper and viscous clamper more according to the wildly use in structure control at present. The result is that viscous damper be recommended.

对目前减振控制中应用较为广泛的粘弹性阻尼器和粘滞型阻尼器进行了重点介绍和对比，在自编程序中设置了粘滞型阻尼器单元的力学模型，可以模拟不同阻尼系数的粘滞型阻尼器，并导出了不可压缩流体的计算公式及给出了适用于结构流固耦合分析过程的近似算法。

Then, an empirical formula of tensile strength of soil with the effects of dry density as well as water content is proposed, and the character of tensile stress-strain relationship of the clayey soil tested in this thesis.

同时，总结出了可以综合考虑干密度和含水率的抗拉强度计算公式，并且分析了本文所研究的粘性土的拉应力应变关系特征。

On the foundation of the reasonable fixed position, according to process the process in of be subjected to the dint appearance and clip the tight dint to arrange the principle, drawing up to clip the tight dint to arrange the project reasonablely;Passing the related calculation formula, cliping the tight dint size to carry on estimate towards process in the process, choosing the size structure to clip the tight motive component reasonablely, according to an oneself of work structure and processed requests and process to be characteristics by the dint in the process, choosing the design to clip the tight organization to guarantee by attain that the work piece positions accurate reasonablely, fast .

在合理定位的基础上，根据加工过程中的受力状态和夹紧力的布置原则，来制定夹紧力合理的布置方案；通过相关计算公式，对加工过程中夹紧力大小进行估算，来选择尺寸结构合理的夹紧动力元件，根据工件自身结构和加工的要求以及加工过程中受力的特点，来选择设计合理的夹紧机构以达到保证工件的定位的准确，快速。

For making this formula more closed to reality,we assign a weight to each of nodes and adjust these weights.

为使所得概率计算公式尽可能地符合现实情况，每一个对等点分别被赋予不同的权，随后对所赋权进行调整。

Describes the composition and characteristics of ensure ordnance equipment ,analyzes the working process of value engineering in the period of the usage of ordnance equipment and shows the computing formula of quantified analyzing, ordnance equipment functional and cost coefficient.

阐述了军械装备使用保障费用的构成和特点，分析了价值工程在军械装备使用保障中的工作流程，给出了定量分析军械装备功能系数和成本系数的计算公式。

The formula for effect coefficient of piles group were solved gradually under different shape of laying-out piles according to principle of additional stress superposition.

根据附加应力叠加原理，逐步推导得到不同布桩形式的群桩效应系数计算公式。

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％。