优值

According to the principle of A-O interaction and quartz′s different characteristic in the direction of parallel and perpendicular acoustics field, with a quarter-wave plate being inserted in an AO Q-switch Nd∶YAG laser cavity between mirror and Q-switch, AO Q-switch′s Bragg diffraction efficiency formula is put out theoretically. Consequently, the conclusion has been drawn by calculating simulation that the ability of a single AO Q-switch′s switching CW Nd∶YAG laser is increased.

结合声光相互作用理论和声光介质熔石英在平行和垂直于声场的两个方向具有不同声光优值的特性，理论推导了腔内引入四分之一波片后声光Q开关的布喇格衍射效率公式，计算模拟得出引入四分之一波片能够有效地提高声光Q开关关断连续Nd∶YAG激光的能力。

According to the principle of A-O interaction and quartz＇s different characteristic in the direction of parallel and perpendicular acoustics field, with a quarter-wave plate being inserted in an AO Q-switch Nd : YAG laser cavity between mirror and Q-switch, AO Q-switch＇s Bragg diffraction efficiency formula is put out theoretically.

结合声光相互作用理论和声光介质熔石英在平行和垂直于声场的两个方向具有不同声光优值的特性，理论推导了腔内引入四分之一波片后声光Q开关的布喇格衍射效率公式，计算模拟得出引入四分之一波片能够有效地提高声光Q开关关断连续Nd：YAG激光的能力。

Choosing the countdown length of Hamilton for the fitness function, using "evolutionary reversal" technique, we give the best path among 20 cities with MATLAB, and also make graph of the optimal value change with iteration in optimization process.

取哈密尔顿长度的倒数为适应度函数，采用"进化逆转"操作技术，运用MATLAB求解得到20个城市间的最佳路径，并做出了寻优过程中最优值随迭代的变化趋势图。

Value iteration based on the vector set results in the piecewise linear convex form of the optimal value function, which can also be used to obtain the optimal policy.

在向量集上进行的值迭代可以得到最优值函数的分段线性凸函数表示形式，同样也可以得到对应的策略。

Firstly,the mixed-integer bi-level programming is transformed into a single level continuous optimization problem by virtue of penalty function concept and optimal value function tool.

利用罚函数思想和最优值函数的概念将混合整数双层规划转化为连续变量的单层非线性规划，然后用事先确定步长的凸组合算法迭代求解此单层非线性规划，进而得到原双层规划的局部最优解

Furthermore, buckling effect factors and their influence law are exploited. Finally, combining the character of piles foundation with high bridge piers with engineering practice, four optimal mathematic models are proposed and flow diagram of optimization analysis is fulfilled by the computer optimum program. A numerical example is analyzed to get optimal solution by using this program. Meanwhile based on the optimal model with buckling coefficient as the objective function, parameter variables are discussed about their effect rule toward the optimal value of objective function.

最后，针对高桥墩桩基础的特点，在基本优化模型的基础上，根据不同的目标函数建立了相应的优化模型，给出优化设计算法流程图，编制了相应的优化计算程序；并根据高桥墩桩基的工程实际设计了一个数值算例，采用本文编制的优化计算程序对该结构进行优化，得到了优化后的最优解；同时，采用高桥墩桩基屈曲系数作为目标函数的优化模型进行因素分析，初步探讨了参数变量对目标函数最优值的影响规律和程度。

Some improvement of genetic algorithm is presented. Fuzzy evaluation is applied to parataxis choosing genetic algorithm to get better solution which satisfied both integral demand and individual demand of object functions.

把多准则模糊优选理论应用于并列选择遗传算法，从而得到即满足整体的最优性，又尽可能的逼近各子目标最优值的非劣解。

The results show that with increasing of service rate, the queue losing fee reduces for sojourn time and losing rate reduced, while the service fee increases. The total system fee has least value and the corresponding service rate is the optimization value.

结果表明：随着服务率的增加，由于信元的逗留时间及丢失率减小，与之对应的排队损失费也随之减小，但同时服务费在增加；系统总费用有它的最小值，这时对应的服务率是最优值。

The objective function of the combination optimization problem is set and an improved mutative scale chaos optimization algorithm is employed to search global optimal value. Thereby the optimal parameters combination are obtained.

对组合优化问题建立目标函数，采用一种改进的变尺度混沌优化算法来搜索全局最优值，从而得到最优的参数组合。

In the algorithms the tournament selection, partially matched crossover, exchanged mutation and elitist model to evolutes the individuals.

在执行算法操作时，采用联赛选择、部分匹配交叉、交换变异和优值保留相结合的方法来进化取优。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。