查询词典 approximation

The hydrodynamic theory of viscous lubrication is studied from Navier-Stokes differential equations ,by the method of successive approximation based upon the smallness of the film thickness.

本文基於Navier-Stokes氏微分方程式，研究粘滞性液体层的滑润作用；此种流体动力学的理论，乃依据液体层之薄度进行续步渐近之解法而得。

The procedure is based on the concept that the critical load of a frame without sidesway is the same as the smallest value among these critical loads of the compression members of the frame with partially restrained ends, and the critical load of every compression member may be determined by the method of successive approximation.

将组成刚架的各桿件视为两端受不同约束的桿件，用静力学的方法求出此等桿件相应的临界荷重，其中最小值即为刚架的临界荷重，举有实例以示演算程序。

This dissertation introduces the whole scheme、the hardware electro circuit design and software design, the result of experiment on salinometer is preferred at the end of the dissertation. Salinometer is base on SOPC technology, and use digital technology to design circuit: the excitation source for balance bridge is generated by digital method, its shape、amplitude and frequency can be control by digital signal, the standard branch of bridge is composed of three digital-analog-conversion, and uses the method of successive approximation to regulate the balance of bridge.

盐度计以SOPC技术为基础，通过数字化方式设计测量电路：电桥的激励源由数字化方式产生，激励源的波形、幅值和频率等可由数字量控制；平衡电桥标准支路由3个数模转换器组合实现，测量时以逐次逼近的方式调整电桥的平衡度；检测电桥平衡度的高灵敏度数字检流计同样以数字化方式设计，它的增益由程序控制，将电桥的输出电压数字化，以软件判断电桥平衡度。

At first, an approximated mathematical model is presented. Then, the system manager can compute the optimal control policy via the method of successive approximation. Based on the above-mentioned algorithm, we design an intelligent system with feedback control to regulate the allocation of limited channels of trunk circuit. This system will continuously detect the status of whole cellular network. Once the system parameters cross the predefined threshold, the recomputing mechanism will be activated.

首先针对系统的近似数学模型先將其定义出来，然后就可以用连续逼近法將最佳控管决策计算出来，这样的最佳决策演算法我们把它设计在一个有迴授机制的智慧型决策系统裹，此决策系统將不断地侦测行动通讯网路运作的情形，一旦网路参数变化超过某个预定的临界值时，整个最佳决策演算法將被启动，系统的近似数学模型將依新的参数重新定义，接下来同样地写出最佳方程式並用连续逼近法计算出新的最佳控管决策。

The approximation error is defined as the integral of the minimum distance between each surfel on the original model and the fitting surface.

算法中的逼近误差定义为原始模型各面元到拟合曲面最小距离的积分。

It deserves to be mentioned that the Modulo Construction algorithm we proposed has a sufficiently large approximation ratio with a low time complexity.

值得一提的是，我们提出的同余构造算法在时间复杂度较低的情况下，具有很高的近似比。

To solve the problem numerically, a mollification method is considered. Error estimate between the exact solution and its approximation is given.

作者在文章中提出了一类正则化方法，通过巧妙地选取适当的参数及相应高斯核正则化子来构造逼近解，并给出了逼近解的近似程度估计。

The Moment Generating Function of decision variable and a saddle point approximation method are exploited to analyze the BER performance of FD-SS-CLDD, and the theoretical results are evaluated by simulation.

通过利用判决变量的矩生成函数，并采用鞍点近似的分析方法，得到了频域扩频码片级差分检测的误码率性能的解析表达式，同时进行了仿真验证。

The moment generating function of decision variable and a saddlepoint approximation method are exploited to analyze the BER performance of FD-SS-CLDD, and the theoretical results are evaluated by simulation.

通过利用判决变量的矩生成函数，并采用鞍点近似的分析方法，得到了频域扩频码片级差分检测的误码率性能的解析表达式，同时进行了仿真验证。

In this paper, we utilizes saddlepoint approximation to the conditional moment generating function to estimate portfolio credit loss distribution and calculate Value-at-Risk.

最近几因公司内部因素而导致公司违约最受注目的违约事件即为安案，因此本文在违约模型中加入额外潜在变描述额外违约风险。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。