Based on the method of small parameters perturbation of 2nd order, the stochastic functional of potential energy for structures with stochastic stiffness under stochastic stimulus is derived.
利用小参数摄动法，建立了随机结构在随机激励下的二阶摄动随机势能泛函。
In this paper, a new kind of nonlinear analytical method which does not depend on small parameters is described and is compared with the perturbation techniques.
本文描述了一种新的、不依赖于小参数的非线性分析方法，并分析、比较了该方法与摄动展开方法的优缺点。
A matrix perturbation method for the calculation of errors in precision electro-magnetic measuring circuits caused by small variation of circuit parameters is described in this paper.
本文提出用矩阵微扰法计算精密电磁测量线路的参数发生微小变化时引起的误差。
Owing to a small fluid flowing rate, it is difficult to measure and interpret the physical parameters of low permeability tight rocks by use of conventional core analysis method.
对于低渗透致密岩石的物性参数，由于流体流动速率很小，采用常规的岩心分析方法难以测量和解释。
Also it can be employed to tune parameters of small signal modulators of FACTS. Furthermore, this method can be easily implemented by electromechanical transient analysis programs.
而且，该方法易于用一般的机电暂态仿真软件实现，并可用于FACTS小信号调制器参数整定。
The simulation results demonstrate that the method has advantages of constant parameters, small calculation quantity, fast-speed and high-accuracy, it is good at real-time predicting tracking.
仿真结果说明，该方法参数固定、计算量小、速度快、精度高，利于实时预测跟踪。
The traditional method of calculation for the acceptance parameters by Taylor expansion in three wave interactions is only suitable for the condition of small acceptance parameters.
采用传统级数展开方法计算晶体非线性三波互作用的允许参量。
Israeli EROS small mapping satellites plan is briefly introduced at first. Then, the paper presents the main technical parameters, features and working method of the first EROS satellite in detail.
首先介绍了以色列eros系列测绘小卫星计划，重点介绍了其第一颗EROS卫星的主要技术参数与特点，以及工作模式。
The simulation result shows that GA can effectively reduce the parameters 'value to a small range, and the application of the least square method improves the convergent efficiency.
通过仿真实验发现，遗传算法能很快的将摄像机参数的取值缩小到一个有效范围内，而最小二乘法的应用有效的提高了算法的整体收敛性能。
The simulation result shows that GA can effectively reduce the parameters 'value to a small range, and the application of the least square method improves the convergent efficiency.
通过仿真实验发现，遗传算法能很快的将摄像机参数的取值缩小到一个有效范围内，而最小二乘法的应用有效的提高了算法的整体收敛性能。
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