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At the same time, the stability of thermal dimension was well. Through dynamic analysis, the structure can not be shaken, fatigued and broken under environment of sin scan and random vibration.

仿真分析结果表明:在柔性结构的调节作用下,反射镜在力和热两种环境约束工况下,面形精度均满足成像质量要求,结构尺寸稳定性好,说明这种柔性支撑结构合理可行。

Once a dual unit commitment obtained within Lagrangian relaxation framework is judged by this feasibility condition to be infeasible, reselect the dynamic planning route with non ramp rate constraints by using the information of the dual solution, i.

当利用充分必要条件判断对偶机组组合不可行时,则利用对偶解的信息重新选择非爬升约束机组的动态规划的路径,即调整它们的启停序列,使之满足充分必要条件,最后以此解决经济分配问题。

The first step enumeration practicable path according to the route information; the second step using genetic algorithm, paths in the first step are generated as gene, all the paths of orders constitute chromosome. Mathematical model was established considering the weight, quantity and size restrictions.

第一步根据运输路段信息枚举可行的路线;第二步运用遗传算法,将第一步生成的路线作为基因,所有订单的路线构成染色体,考虑运输的重量、数量、体积等能力限制约束,建立数学模型。

First, for a given integer value of the objective function, the lower and upper bounds of the variables were determined by the optimum simplex tableau of the linear programming relaxation problem. Then the conditions on the bounds were added to the constraints as cuts to the associated objective function hyperplane. Finally, a branch procedure of the branch-and-bound algorithm was applied to finding a feasible solution on the objective function hyperplane.

对于给定的目标函数整数值,首先利用线性规划松弛问题的最优单纯形表确定变量的上、下界,然后将变量的上、下界条件加入约束条件中对相应的目标函数超平面进行切割,最后应用分支定界算法中的分支方法来搜寻目标函数超平面上的可行解。

To advance a constraint-based machinable region method for the NC tool path generation of compound surfaces.

提出了基于约束的加工可行域的组合曲面的NC刀具轨迹生成方法。

One is a large scale nonlinear programming model with equalities, the other is a more complicated NP hard and nonlinear compound 0-1 programming model. It is difficult for the existed algorithms to fulfill the demands of efficiency and size for the above problems. Two corresponding genetic algorithms are presented, in which several suitable genetic operations are constructed to make the optimization search process in the range of feasible solutions.

一个为大规模的带等式约束的非线性规划模型,另一个为更为复杂的带NP难解问题的混合非线性0-1规划,已有算法都难以满足上述两种问题的求解规模及效率的需要,我们给出了相应的遗传算法,确定了适当的遗传操作,使得问题的寻优过程始终都在可行解范围内进行,不仅提高了优化速度,而且有效地提高了优化效果。

The writer set up an optimization-programming model to define preload and tension rod diameter by using constrained variable metric method.

文中采用约束变尺度法建立了确定预紧力和拉杆直径的优化计算模型,算例表明该方法可行。

The set of feasible operations that allocate time optimally among the three heat conduction branches for the objective function be written in terms of the net effects and the finite-time constraint are explicitly described. The result generalizes the well-known result of Curzon and Ahlborn for the efficiency of a Carnot-like heat engine at maximum power.

描述了三个恒温热源之间一切可行的循环方式,在有限时间的约束下,根据净效果定义的目标函数对热传导分支运行时间进行了优化分配,推广了类卡诺热机在最大输出功率时Curzon和Ahlborn所得到的效率结果。

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I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。