系统函数

On the aspect of system reliability, the equivalent exponential distribution theory was proposed which is applicable in system reliability analysis and calculation.

给出了考虑系统组成部件的故障率及修复率为时间的函数时，存在相依失效系统的可靠性分析方法。

We should take the economic system and the system of natural resources as a whole, which make a country to pay attention to the protection and the sustainable use of natural resources. The finiteness of natural resources let us think the sustainable development of economy.

从经济角度而言，资源永远是稀缺的有价的，它是生产函数的基本变量，自然资源的禀赋及供给情况决定了一个国家的经济增长路径，将经济系统和环境资源系统作为一个整体来考虑，就要求一个国家在发展经济的同时注重本国资源的保护和可持续利用。

With the help of the fundamental theory to singular measure differential system, Green's function matrix expression of solution and well-posed boundary condition are given, together with discussing the properties of the Green's function matrix under the influence of impulsive effect In section 5, based on Lyapunov function method, we investigate that the existence of the first boundary value problem to second-order singular system by macthing the solutions to the second boundary value problem; and the existence and uniqueness of three-point boundary value problem to third order singular system by macthing the solutions to two-piont boundary value problem.

第五部分借助Lyapunov函数法，通过将第二类边值问题的解对结成第一类边值问题的解，得到了二阶广义系统的第一类边值问题解的存在性；通过将两点边值问题的解对结成三点边值问题的解，得到了三阶广义系统的三点边值问题解的存在性和唯一性。

In this paper, the almost periodic solution for a class of two-degree-of-freedom nonlinear oscillating systems is studied by using the Leray-Schauder fixed point theorem and the method of Liapunov function.

运用Leray-Schauder不动点定理和Liapunov函数方法，研究了一类两自由度非线性振动系统的概周期解，得到了该振动系统概周期解存在的充分条件。

The sufficient conditions for guaranteeing the permanence of the system and the existence and uniqueness of periodic solution having globally asymptotical stability are obtained by using the extremum principle,fixed point theorem and V function method s together.

讨论一类具 Holling 类功能反应和放养的捕食链非自治扩散系统，应用极值原理和不动点定理及 V函数法，得到该系统的一致持久性以及存在唯一全局渐近稳定周期解的充分条件。

Using Landauer-Buttiker formulism the analytical expressions for the electronic transmission probability as a function of incident electron energy and geometry parameters are obtained, with which the conditions for interference maximum and minimum of electron wave are indicated analytically and verified numerically.

用Landauer-Büttiker公式解析地计算出了两种情况下系统电子透射率作为入射电子能量和系统几何参数的函数表达式，从而分析得出了由于量子干涉产生透射极大与极小值时入射能量与几何参数所满足的条件关系并得到了数值验证。

Indices, including average line loading, average line flow limit per MW served, line investment ratio are proposed to quantify the stress level of the system, while the probability distribution function of fractional load shed and total failure components, cascading failure frequency, and risk are used for the risk analysis of cascading blakcouts.

论文提出了网络利用率、单位平均投资和线路投资比等指标，对系统的临界水平进行量化；并采用连锁故障灾难度的概率分布函数、连锁停电事故频度和风险等指标分析电力系统的连锁故障风险。

Firstly, a systematic study of lots of paper is made, modal analysis method that accord to frequency response function is introduced.

本文首先在综述大量相关文献的基础上，系统总结了根据系统频响函数进行模态分析的方法。

So the frequency response functions of this system are calculated in the last chapter.

在系统表达式已知的情况下，可以通过谐波探测法求出系统的各阶频率响应函数。

In this thesis, first, the basic principles and properties of the Generalized Frequency Response Function and the Volterra Series are introduced.

首先讨论了非线性系统相关理论，包括Volterra级数和广义频率相应函数的基本原理，基本性质，以及以此为基础的非线性系统故障诊断。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。