查询词典 optimal

The numerical experiment results by researching the optimal problem of standard test functions show that the election-survey algorithm can constringe rapidly to global optimal solution and has better stability.

通过对标准测试函数优化的数值实验结果表明，竞选算法可快速搜索到函数的全局最优解，并具有较好的稳定性。

The book is divided into 14 chapters, including Introduction, continuous control system theory, process and discrete sampling, Z transform, sampled-data systems, discrete approximation of continuous system the equivalent, based on mathematical transform the classical design method, based on state space pole placement design methodology, multi-variable system of quadratic optimal control, quantitative effects, the choice of sampling period, the digital control system modeling, digital control system for a variety of design methods, variables quadratic optimal control systems, sampling cycle of selection, non-linear control of the problem, as well as digital control system, a typical application - Disk drive servo control design.

全书共分14章，内容包括概论、连续控制系统理论、采样过程和离散化、Z变换、采样数据系统、连续系统的近似离散等效、基于数学变换的经典设计方法、基于状态空间的极点配置设计方法、多变量系统的二次型最优控制、量化效应、采样周期的选择、数字控制系统的建模问题、数字控制系统的各种设计方法、变量系统的二次型最优控制、采样周期的选择、非线性控制的有关问题，以及数字控制系统的一个典型应用——磁盘驱动器的伺服控制设计等。

An optimal path planning algorithm of the observer is proposed in this paper, which is based on the dynamic programming. Based on the data measured at the current stage, the optimal moving direction of the observer at the next stage is calculated aiming at the maximum area of the target feasible region convergence.

该算法在当前测量时刻所测数据的基础上，以目标位置可行域收敛面积最大化为目标，分析出观测站运动到下一测量时刻的最优运动方向，从而达到缩短定位时间和抑制定位误差的目的，实现整个测量路线的最优化。

Leading resistant factor into the necessary condition can also enlarge the quadratic convergence region near optimal solution so that it is very efficient to use the known flash calculations at one condition to iteratively compute another optimal solution at other conditions where pressure, temperature and mole fractions of components are close to known ones respectively.

在极值必要条件式中引入阻尼因子能扩大真解附近的平方收敛域，尤其在利用已知条件下的汽液平衡结果作初值直接用极值条件方程迭代计算压力、温度和组成变化不严重的相邻点的汽液平衡极值解方面效果十分显著，适合于加快组分模型的计算速度。

Because the algorithm of support vector machine is a convex quadratic optimization problem, the local optimal solution is certainly the global optimal one.

并且，由于支持向量机算法是一个凸二次优化问题，能够保证找到的极值解就是全局最优解。

Secondly,we can use the theory frame of cooperative game to figure out the method of optimal equity structure design and the optimal value theoreticly.

二、能够借助合作博弈理论的分析框架寻找到上市公司股权制衡的最优股权结构设计的方法和理论最优值。

State variables at left end of time interval and costate at right end of time interval were taken as independent mixed variables, and the state and costate variables inside the time interval were approximated by Lagrange interpolation. Nonlinear optimal control problems were replaced by nonlinear equations through dual variable principle, and the symplectic algorithm for solving nonlinear optimal control problems can be obtained at the same time.

以时间区段一端状态和另一端协态作为混合独立变量，在时间区段内采用拉格朗日插值近似状态变量与协态变量，然后利用对偶变量变分原理并将非线性最优控制问题转化为非线性方程组的求解，最终得到求解非线性动力学系统最优控制问题的保辛数值方法。

The lower optimal solution is also influenced by the upper decision variable, which is feed back to the upper level, furthermore influence the upper programming problems optimal solution.

下层问题的最优解又受上层决策变量的影响，其解反馈到上层而影响上层规划问题的最优解。

According to the optimal principle of dynamic programming and combined with the requirement of optimal operation constructed the model of reservoir operation which objective function was to pursue the maximal electric power and the decision variable was the generation power flow.

根据动态规划的最优性原理，结合水电站对优化调度的要求，建立以水电站年发电量最大为目标函数，以各时段下泄流量为决策变量的水库优化调度模型。

In this paper the optimal of memory for cyclic type systems, and the optimal allocation of maintenance capacity for diplex CPU are studied.

本文研究了循环型存取方式的最优内存容量及其有关问题；还研究了双机工作维修能力的配置问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。