查询词典 optimal position

In this paper,some approximate optimal solutions and an augmented Lagrangian function in nonlinear programming were introduced,duality map and duality problems based on the augmented Lagrangian function were established, relationship between the approximate optimal solutions of augmented Lagrangian function and primal problem was discussed.

介绍了几种近似最优解和增广拉格朗日函数，建立了基于增广拉格朗日函数的对偶映射和相应的对偶问题，讨论了增广拉格朗日函数的几种近似解和原问题的几种近似解的关系，得到的结果推广了一些已有的结论。

In this paper, the optimal control problems of landing gear are investigated by using optimal control theory. A nonlinear mathematical model is established.

本文在最优控制理论的基础上，讨论了主动控制起落架的最优控制问题，并建立了一个非线性的数学模型。

The results show that there are optimal damping coefficient leading to the minimum response of the primary core-tube, and that the dynamic response is not sensitive to the lesser damper stiffness, and that the optimal value affected by inter-story drift ratio of the suspended floors as constraint condition and setting reasonable structural parameters could meet the optimization objectives and the inter-story drift ratio limit of the suspended floors.

结果表明：存在最优阻尼器的阻尼系数，使得主体核筒的响应最小；当阻尼器的刚度较小时，可以忽略其对结构动力响应的影响；悬挂楼面的层间位移角作为约束条件，影响结构参数的优化值；通过设置合理的参数才能够同时满足优化目标和悬挂楼面的层间位移角限值。

The theoretical analysis and experimental results show that the result of the first one has bug error with optimal results, and the second one is superior to the former, and the third one is best, which can get the optimal result based on least upper bound of error probability.

证实了"基于最小错误概率上界特征提取"是目前可以用迭代算法完成的最好的特征提取，而"基于马氏距离特征提取"在错误概率上界上升很小的代价下，简化了计算量，也是一种可行的方法。

Based on the traits of the aspherical lens, the sunlight was focused on a very small spot, and then it was transferred into a plastic fiber by an aspherical lens and a selfoc lens. A formula for calculating the optimal length of selfoc lens is presented. The optimal assembly of the aspherical lens and selfoc lens was implemented by the aid of this formula. Therefore, sunlight is coupled into a plastic fiber efficiently.

根据非球面透镜垂轴球差小的特点把太阳光会聚到很小的光点，再利用长度约为1/4节距的自聚焦透镜改变光线的数值孔径使其满足光纤的数值孔径，通过一个计算公式来计算最佳的自聚焦透镜长度，实现非球面透镜和自聚焦透镜的最佳组合，把太阳光以较高的耦合效率耦合进塑料光纤。

At last, for a kind of nonlinear optimal control problems in which the Lie algebra of the system is either 1 or 2 nilpotent, a necessary condition which the optimal control law must satisfied is given.

我们给出了非线性系统可反馈对称化的一个充要条件，并给出了反馈律的构造方法。

The optimal static adsorbing time and desorbing time were both 5 h, the optimal concentration of sample was 3.7 mg/mL, flow speed was 2 mL/min, and eluted with ethanol at the concentration of more than 70% which volume was ten times of elution bed volume, what was better in eluotropic effect with smaller in tailing level. Conclusion HPD100 macroporous resin could be used in the purification of the total flavonoids in Lignum Dalbergiae odoriferae.

结果 静态试验选出HPD100树脂，其最佳静态吸附时间和解吸附时间均为5 h，样品溶液浓度为3.7 mg/mL，吸附流速为2 mL/min，10倍床体积的70%以上浓度乙醇洗脱，可解吸附70%的降香总黄酮。

Illustrations are used to analyze the limitation of line sampling firstly. For linear limit state, the efficiency of LS is affected by the dispersion of the actual important direction from the optimal one, the bigger the dispersion is, the lower the efficiency is. For non-linear limit state, in case that the actual important direction deviates from the optimal one greatly, the efficiency and the precision of LS decrease seriously, even wrong results are obtained.

首先通过算例分析线抽样方法存在的问题，对于线性问题，线抽样法的效率受抽样重要方向与最优重要方向偏离程度的影响，这种偏离程度越大，效率越低；而对于非线性问题，当抽样重要方向与最优重要方向偏离较大时，线抽样的效率和精度均严重下降，甚至得出错误的计算结果。

In this algorithm, the solving space of logical variables is reduced by logical constraints, and the computational complexity is not raised exponentially when the logical variable number is raised. The scale of the NLP sub-problems is also reduced. The global optimal solution will be obtained, and the local optimal problem of nonlinear system is avoided.

算法的特点为：利用逻辑变量的物理意义来缩小求解空间，避免了计算量随逻辑变量数目呈指数型上升的问题；NLP子问题的规模大大缩小，加快了求解速度；可以得到严格的全局最优解，避免了非线性模型可能带来的局部极值问题。

Results: The optimal concentration of Luceferase and Luciferin were 1.25ug/ml and 87.5uM; Reaction solution was prepared according to optimal concentration. From the ATP standard curve the lowest ATP test limit was found to be , the H1299 lowest test limit was 100 cells.

结果：Luciferase和Luciferin最佳反应浓度分别为1.25ug/ml和87.5uM；按照最佳浓度配制反应液后，绘制ATP浓度标准曲线，找到ATP检测最低线为10-12mol/L，可以检测到H1299细胞最低值为100个。

Dixie itself is a nickname for the American South.

Dixie 本身是美国南部的别称。

I think John Terry epitomises that and a big reaction is what we will be looking for.

而我认为特里就是这样一个典型，他正是我们期望看到的那个领秀。