稳态

In atomic vapor laser isotope separation, the metal is heated and melted by electron beam, and some atoms are on the metastable states. In order to analyse the influence of metastable states' deexcitation on vapor physical parameters, such as velocity, temperature, direct simulation Monte Carlo method is used to simulate the 2 D gadolinium evaporation from long and narrow crucible.

在原子法激光同位素分离工程中，金属受电子束的加热而熔化，有一部分原子处于亚稳态能级，为了分析在蒸发过程中亚稳态原子退激对原子蒸气的速度、温度等物理特性的影响，采用直接模拟蒙特卡罗法模拟钆原子蒸发过程，分析亚稳态原子退激过程对蒸气特性的影响。

Then a set of steady solutions is gained from the dynamic model to update the steady state model.

然后，由动态模型给出生产装置的稳态数据，利用这些稳态数据来校正稳态模型。

Using the matrix-geometric solution's method,the existing condition of steady-state equilibrium and the steady-state probability vectors are discussed.

利用矩阵几何解的方法讨论了系统的稳态平衡条件和稳态概率分布，并得到了系统的一些稳态性能指标和数值结果。

Empirical Bayes estimates of steady-state availability in exponential distribution model;2. Using vector Markov process theory and Laplace transform method,we obtain the Laplace transform of the reliability,the mean time to first failure,the steady-state availability and the steady-state failure frequency and so.

利用向量Markov过程理论和Laplace变换的方法，求出了系统可靠度的Laplace变换，系统首次故障前平均时间的表达式，系统的稳态可用度和稳态故障频度等可靠性指标；此外，还通过数值比较考察了系统参数对系统稳态可用度的影响，并对系统进行了效益分析。

It will not only contribute to the understanding of the working principle of monostable ...

这有利于对单稳态触发器工作原理在本质上的理解，同时为无稳态触发器、多值单稳态触发器等的研究提供了理论依据。

The optimal control problem for the FCC process is solved using the MFNN (multilayer feedforward neural network) for system recognition and modeling, periodogram analysis for model testing, and the advanced Frank-Wolfe algorithm for steady state optimization computation.

为解决催化裂化过程的优化控制问题，采用多层前馈神经网络进行辨识、建模，用周期图检验法对模型检验，用改进的Frank-Wolfe算法进行稳态优化计算，并以大港炼油厂实际生产过程的稳态数据进行试验和验证，说明神经网络适合于解决非线性复杂生产过程的辨识、建模和稳态优化控制问题。

Two kinds of N-node tandem open queueing network system with exponential distribution are analyzed in this paper . The generater matrixes of Markov process are given in recurrence formulate.Seperately, the solution of the system stability,the stationary combinable distribution of each node queue length and the busy time distribution is obtained by means of matrix analysis in the second mo del. Moreover we gave out the Matlab program for sloving the system stability solution .

在本文中，我们主要研究了两类服从指数分布的有限容量的N级串联排队系统模型，分别采用递推的方式给出了高维马尔可夫过程的转移矩阵，在本文模型二的假设下利用矩阵分析方法进行求解，得到了该系统的稳态解及其系统各级队长的稳态联合分布，系统忙期长度分布等其它指标，且给出了求稳态解的Matlab程序。

The integrated mathematic model of solidification is then established, which includes heat transfer, solute transfer, liquid flow and the movement of equiaxial crystals in solidification process.

本文通过两相流理论建立了等轴晶在对流金属液中移动的非稳态数学模型，推导了求解等轴晶在非稳态、非均匀液相流场中非稳态移动的数值表达式，并进一步推导了描述等轴晶在凝固过程中迁移、堆积规律的局部堆积方程式。

For naturally cooled monobloc barrel, its thermal condition in regular regime can be evaluated by measuring the outside temperature of two arbitrary rounds;(2) During a sustained firing process, unsteady heat conduction exists in a monobloc barrel, whereas unsteady and quasi steady heat conduction exist with actively cooled composite barrels, meaning that the thermal condition changes from uncontrolled to controlled;(3) Different combinations of the convective heat transfer coefficient h and thickness of gun barrel δ have much effects on cooling the bore temperature.

利用有限元软件分析了某大口径火炮身管的温度场分布，并对自然散热条件下的单筒身管和主动冷却条件下的复合身管温度场进行了比较，其结果为(1)身管温度场分布存在初始和正规工况阶段，后者的单筒身管热状态可以通过测定任意两发身管外表面温度来评估；(2)持续射击过程中，单筒身管始终处于非稳态导热过程，主动冷却身管则包括非稳态和准稳态两个过程，实现了身管热状态由不可控向可控转变；(3)对流传热系数h和身管壁厚δ的组合对降低内膛温度具有很大影响。

It is shown that because of the high nonlinear of oil film force of SFD, the nonsynchronous response and the bistable operation may occur in the rotor-SFD system, especially the latter with high vibration amplitude, which has a great effect on the reliability of the rotor system.

结果说明了由油膜力的高度非线性所引起的非协调及双稳态，特别是当转子需要频繁的通过双稳态区时，双稳态跳跃将使转子系统的振动迅速增大，在实际应用中应对其引起足够的重视。

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。