查询词典 optimal value

Calculation results show:(1) Initial concentration of SO〓 has great effect on utilization efficiency of limestone;(2) An optimal value of Ca/s is between 2～3;(3) the calculation results are good agrement with experimental results, they can explain the reaction nature of CaO and SO〓 under furnace injection.

计算结果显示：(1)初始SO〓浓度对石灰石利用率存在很大的影响；(2)当Ca／S在2～3之间存在一个最佳值；(3)计算结果与实验结果符合较好，可以反映炉内喷射条件下CaO与SO〓的反应。

We first provide a lower bound of its optimal value which can be used to solve the problem optimally by branch and bound method.

本文考虑此类问题中的如下一个新问题：一个企业的专用网即Intranet网，在因特网上有两种功能。

The Mean-CVaR (Conditional Value-at-Risk) portfolio optimization model is proposed to calculate a globally optimal portfolio under concave transaction costs. A non-decreasing concave function is employed to approximate origin transaction costs function.

研究了当投资组合的风险用条件风险价值（Conditional Value at Risk，简称CVaR）度量，考虑凹交易费用的投资组合选择问题，通过对交易费用采用非线性的凹函数，建立了一个均值-CVaR模型。

The first level and the lower level both have their objective functions and constraint conditions, the objective function and constraint conditions of the first level not only have relations with the upper decision variable, but also depends on the optimal value of the lower level.

上层和下层各有目标函数和约束条件，上层问题的目标函数和约束条件，不仅与上层决策变量有关，而且还依赖于下层问题的最优解或最优值。

The main results, obtained in this dissertation, may be summarized as follows:1. In chapter 2, the differential property of the optimal value function with a non-compact set is studied. The expression of its lower-Hadamard directional derivative is obtained.

第2章研究了非紧致集上最优值函数的微分性质，首先给出了最优值函数的Hadamard下方向导数的表达式，其次在最优值函数的有效域为非空凸集的情况下刻画出了次微分的表达式。

It is expected that the optimal value of x is of the order of the time interval between two pulses.

预计x的最佳值约为两脉冲之间的时间间隔。

Simulation results indicate that genetic algorithm can solve this problem and find the global optimal value efficiently ,and it's insensitive to the initial guess. The optimal reentry trajectory can meet the requirements of attitude, heat flux and velocity.

仿真结果表明提出的方法能够较快地搜索到全局最优解，对初始猜测值不敏感，能够方便用于RLV的再入轨迹方案选择和优化设计。

And through the discussion of their localizations, a method is put forward to improve the optimal value of the objective function further by adjusting the LP's technique coefficients but not changing the optimal solution's structure, and the model is endowed with the inherent meanings of management innovation as well.

并在对两类线性优化逆问题自身局限性进行讨论的基础上，研究提出了在线性规划最优解结构不变的前提下，通过调整技术系数参数实现目标函数值进一步改善和优化的一种方法，且赋予了其企业管理创新的内在涵义。

Firstly, preprocess road image with edge operator to get the edge information, then construct a deformable template model of road contour and its likelihood function which define the fitting degree for a given group of deformable template parameters, finally genetic algorithm is used to search the global optimal value of the likelihood function to get the optimal parameter of the deformable road model.

真实场景的道路识别算法常常受到光照变化的影响，导致图像序列中道路目标的亮度值变化较大，传统基于固定阈值的方法不能很好的解决该问题，因此道路识别算法鲁棒性差，即使道路检测和识别算法在光照较为固定的场景具有较好的效果，但这样的算法很难移植到其它光照场景。

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。

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。