求解过程

When the sojourn time of deteriorating state, inspection interval and maintenance time are the stochastic variables which follow the general distribution, the phase-type approach is proposed to preserve the analytical tractability of the transition probability matrix. To solve the problem that the PH distribution changes the state space of system, the value iteration algorithm for the semi-Markov decision process is improved to get the optimal inspection and maintenance policy.

针对模型中劣化阶段停留时间满足一般分布的情况，提出了一类基于位相型分布拟合的近似处理方法，将物理意义上的状态进行概率扩展，简化了维修决策的求解过程，并给出了对应的改进迭代算法，同时从理论上证明了该算法的收敛性。

The false scattering and ray effect in spherical harmonics method ,including P-1 and P-3 approximation,is studied.

从辐射传输方程的近似求解过程出发，在定性分析的基础上构造物理模型，通过数值模拟研究球谐函数法(P1和P3近似法)的假散射和射线效应。

Moreover, restoration and optimal reconfiguration are coordinated, and throw-in and off of capacitors are considered.

利用启发信息简化寻优途径，在求解过程中运用禁忌思想，避免不必要的重复计算，大大加快收敛速度。

The proper models, such as Chao-Seader model, are chosen to caculate physical properties parameter so that physical properties caculation can be simplified and has good accuracy, tridiagonal matrix method is used to solve process modes. Normalization algorithms is improved.

模型以经典经验公式与操作员经验相结合估算精馏塔效率；选择Chao—Seader模型计算物性参数使物性计算简洁并达到较高精度；应用三对角矩阵泡点法求解过程模型；改进归一算法，提出CMB法与θ法相结合的新型归一算法提高了模型计算的收敛性与快速性。

The nature of the acceleration unit-impulse response function of unbounded medium tending to vary linearly is proved by means of asymptotic analysis. Thus, the acceleration unit-impulse response function can be regarded as the summation of a linear function and a residual part which converges to zero. Based on this decomposition, two FE-SBFE coupling procedures are presented based on system realization and truncation integral technique respectively.

本文系统研究了相互作用力-运动关系的位移表达、速度表达和加速度表达，通过比较位移、速度和加速度单位脉冲响应函数的SBFE求解过程，确定采用相互作用力的加速度表达；通过渐近分析证明了无限地基加速度单位脉冲响应函数具有随时间延长而趋于线性变化的性质；利用这一性质将加速度单位脉冲响应函数分解为一个线性函数和一个衰减到零的残余函数的和，以此为起点发展出两种FE-SBFE时域耦合方法：基于系统实现的FE-SBFE时域耦合方法和基于截断卷积的FE-SBFE时域耦合方法。

It also shows that the improved method has some advantages of simpler program and easier realization over the unimproved one.

就目前已有的许多方法而言，对于响应方程中的两个系统复常数，往往采用不同的处理方法，或者说不同的求解过程，在实现上，即需要编制不同的程序。

Nested-girding method improves the solution of pressure function, which could upraise the speed more than 8 times.(4) Based on the qualitative analysis results of geology and employing greyclustering analysis method, the quantitatively discriminating pattern of the size of remaining oil potential is founded.

嵌套网格划分法改进了压力方程的求解过程，进一步缩短了运算时间，节约了设备运行成本；(4)以地质综合分析的定性分析结论为基础，采用灰色系统理论中的灰聚类方法建立的剩余油定性描述量化模型，实现了剩余油潜力大小的定量化评价。

The voltage amplification multiple,the input resistance and the output resistance are the most elementary three targets in the Alternating Magnifying circuit,which has a process of quite complicated analysis and solution.

电压放大倍数、输入及输出电阻是交流放大电路中最基本的三种指标，其分析和求解过程比较繁琐。

A "what-if" analysis method based on changing all kinds of bounds and parameters is developed to offer more decision information.

通过改变各临界值和求解过程中产生的参数，模型支持各种假设分析。

At the same time,contrapose to the inverse function issues which were met frequently ,some measures such as the improvement of design variables were adopt,which has greatlyimproved the efficiency of seeking.

同时针对求解过程中频繁遇到的反函数越界问题，采取了改进设计变量的措施，大大提高了寻优效率。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。