稳态

It is often tested by an unsteady state flow experiment and calculated by JBN method,which is only fit for Darcy flow through medium-high permeability with high velocity of displacement because of taking neither non-Darcy flow nor capillary attraction into account.

通常用非稳态流方法测定和用JBN方法计算它，但未考虑非达西流及毛管力的影响，故只适合于中高渗透岩石达西渗流的情形，且要求非稳态相对渗透率实验驱替速度较高。

In allusion to dynamic nonlinear large-scale industrial processes, to bring up gained the method of decentralized identification for the strong consistency estimates of the divisible steady-state models, it is used that property of polynomial can infinitely approach to the nonlinear function and in optimization processes use step signals as input signals, the divisible steady-state models of dynamic nonlinear large-scale industrial processes, and the cognizable conditions are obtained.

针对动态非线性大工业过程，提出了得到其可分稳态模型强一致性估计的分散辨识方法；利用多项式对非线性函数的无限逼近的性质和优化过程中设定点的阶跃信号作输入激励信号，获得了动态非线性大工业过程的可分稳态模型和可辨识的条件。

Experiments show that this kind of controller has better steady state response than the normal fuzzy controller. Secondly, two kinds of compensating method for the nonlinearity of mechanical transmission system are developed.

其三是一种可变结构的模糊控制算法，在响应的初期和稳态采用不同结构的模糊控制器，输入输出变量的量化也采用不同的台阶，实验证明这种控制器比一般的模糊控制器具有更好的稳态响应。

Before the thermal field is calculated, stable temperature rises in each part of the electromagnet are unknown, so it is impossible to determine the power and convectional heat transfer coefficients at the stable temperature rise.

在进行温度场的计算之前，电磁铁各部件的稳态温升是未知量，故线圈达到稳态温升时的发热功率及对流散热系数不能确定。

This paper describes a numerical simulation method used to resolve coupled unsteady convective and conductive problem in pipeline.

文章主要描述了一种用于求解管路中非稳态对流换热和非稳态导热耦合问题的数值方法。

In chapter 2, we devoted ourself to the research of the existence and uniqueness of a class of diffusive population modle under Dirichlet boundary conditions.

在第二章中，我们讨论一类时滞反应扩散方程在Dirichlet边值条件下，零稳态解和非零正稳态解的存在性及其渐近行为。

What this paper finished mainly work as follows: Five-phase hybrid step motor driver system with fixed-chopping frequency and constant total current driving is fully described. Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established. The steady modeling of the system is established and studied. Based on the steady modeling of the system, dynamic modeling of the system is studied and single step response characteristic is constructed with MATLAB/Simulink. The simulation results, which is certified by the theory analysis, coincide with the theory analysis.

本文主要完成的工作包括几个方面：对五相混合式步进电动机恒频斩波恒总流驱动系统进行了完整的描述；建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；基于MATLAB/Simulink建立了恒频斩波恒总流驱动系统稳态仿真模型，并进行了仿真；在建立其稳态仿真模型的基础上，对动态模型进行研究，并借助于MATLAB/Simulink工具建立了恒频斩波恒总流驱动系统单步响应特性的仿真模型并对其单步响应特性进行了仿真研究，仿真结果与理论分析相符。

On that basis , the equivalent inductance and capacitance of the transmission line under the magnetically insulated stable-state are calculated in consideration of the space charge effect for the improvement of unit model of circuit code .

在此基础上，计算了考虑空间电子效应后处于磁绝缘稳态的传输线等效分布电感和电容，以改进磁绝缘稳态的电路单元模型。

Based on the exergy transfer equations, exergy transferring in the steady heat conduction process are calculated for the infinite plate at the first type boundary condition, and two results are compared when conductivity is stable and changed with temperature in this paper.

利用一维稳态传递方程，对平壁在第一类边界条件下的一维稳态导热过程的传递做了数值计算，并就导热系数为定值与变值的两种计算结果进行了比较。

By the method of supplemental variable, some important performance measures and queues generating function of this system have been attained.

运用补充变量法列出稳态下系统的状态偏微积分方程组，从而求得了系统主要排队指标及稳态队长的概率母函数的随机分解结果。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。