参数

Using the simulation calculation program and adopting the single factor analytic approach, simulation results are gotten and conclusions can be drawn from the simulation results. The parameters have a little influence on vibration of the driver's seat when the frequency of the vibratory force is larger than 20Hz, and the zone that the parameters have great influence on vibration of the driver's seat is nearby the sympathetic vibration frequency of the system which is about lOHz.

利用编制的模拟计算程序，采用单因素分析法，分析了各参数对驾驶员座椅处振动位移的影响：在激振力频率大于20Hz后，各参数对驾驶员座椅处振动影响较小；各参数对座椅振动影响较大的区域在激振力频率为10Hz附近的共振区。

The results of power spectrum analysis suggest that there is significant difference between healthy subjects and patients with syringomyelia.

本文对76例(男47例，女29例，平均年龄28.7岁)没有神经系统疾病的受试者颈髓诱发电位进行计算机采样，参数提取和频谱分析，并根据各参数的常态分布确定我国正常人颈髓诱发电位某些参数的正常值范围。

This will make it easier to sovle the system of linear equations at last.

我们构造了六参数及十二参数三角形能量正交元，用双参数法构造了一个十二参矩形能量正交板元，给出了它们在正则性条件假设下的误差估计。

To meet the challenge of the design for different span projects, the influence of the major parameters on the mechanical behavior at different spans is analyzed in this paper. The variation rule of these parameters with the span is discussed in this paper, which provides thereunder for project designs.

4为满足实际工程中不同跨度的设计需求，本文针对张弦立体桁架结构的主要参数在不同跨度时对结构的受力性能影响情况进行了计算分析，讨论了结构参数和跨度二者之间的变化规律，为工程设计提供了参数选择的依据。

In this method, a global approximately optimal solution of all ANFIS parameters is obtained using genetic algorithm and then premise parameters and consequent parameters are fine tined respectively using BP algorithm and Least Squares Estimate.

这种新混合学习方法首先利用遗传算法得到ANFIS所有参数的一个全局近似最优解，然后再利用BP算法和最小二乘法分别对前提参数和结论参数进行细化调整。

By analysing and calculating the variations in distribution of axis direction contact force and contact pressure on screw thread, the influence of errors of pitch and taper of casing screw threads to the properties of resisting pull and sealing liquid and gas are studied. Based on the result obtained through analysis, a reasonable tolerance distribution for pitch and taper is proposed.

最后，本文通过分析计算内外螺纹不同的螺距、锥度参数配合时，轴向载荷及接触压力在螺纹上分布的变化，研究了套管螺纹的螺距、锥度参数误差对套管螺纹接头的拉伸和密封性能的影响，并依据分析结果提出了二参数公差带的合理分布。

The main aim is to compare topological index with quantum descriptors in the process of prediction of PCBs properties. At the same time, generalized correlation coefficient was attained to describe the diversity characters of two kinds of descriptors.

通过计算拓扑指数与量子化学参数的广义相关系数，比较了两类参数之间的差异性，同时通过对多氯联苯系列的几类重要的物理化学性质的预测，比较了两类结构参数在QSAR研究中的不同作用。

An algorithm about picking element is presented in this paper: First,getting certain amounts of boundary points by contour tracing from a point near an element and calculating primal parameters; Then, picking the element completely by element tracing guided by these initial parameters, jumping over broken points and intersecting points; At last,deleting the picked element from the raster image and renewing other elements' information intersecting with the picked element.

本文提出一种图元拾取算法：首先从图元附近一点开始，经轮廓跟踪、参数拟合得到图元的初始参数；然后在初始参数引导下，对图元定向跟踪，跳过断点和交点，最大限度的拾取整个图元；最后在光栅图像上删除该图元，并恢复与之相交的其它图元的交点信息。

However, we can not get the film parameters directly because the ellipsometer equation is a transcendental equation. We can hardly get the analytical solution for film parameters from the measured ellipsometric parameters Ψ and Δ. Therefore, to find an algorithm to inverse the measured data Ψ and Δ becomes a primary but important problem.

但是通过椭圆偏振测量只能得到椭偏参数Ψ和Δ，由椭偏参数求解薄膜结构参数的椭偏方程是一个超越方程，很难得到精确的解析解，因此一般采用数值反演迭代不断逼近测量数据，将最优解作为测量结果。

This assay is focuses on part of access network technology. The main contents are as the follows.To discuss the function of the forthcoming copper loop, city cable channels once and twice parameters are analyzed and calculated, and simple analytic model are used to describe the characteristics of channel. The transformation of parameter related to applied HDSL technology in higher band of frequency, and the influences of near reaction and twisted subscriber line are mainly analyzed.

本文针对接入网技术的部分技术进行了分析和讨论，主要内容有以下几部分：为探讨现有的铜线回路的性能，对市话电缆信道的一次参数和二次参数进行了分析计算，并引入简单的解析模型来描述信道特性，其中着重分析了与应用HDSL技术有关的较高频段内参数的变化，邻近效应和用户线扭绞等因素的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。