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It is obviously that a planar point set has innumerable circumscribled circles. To get a minimum circumscribled circle, a mathematical model is built to transform the problem of getting a minimum circumscribled circle to the problem of optimizing function and to solve the function optimization with genetic algorithm.

为求得最小的包容圆，建立了求平面点列包容圆的数学模型，将求最小包容圆问题转化为函数优化问题，并用遗传算法解决了这个函数最优解的求解问题。

This paper describes a fast and efficient Fixed Heuristic Algorithm for unequal circle packing test problem with equilibrium constraint and all best known optimization solutions.

本文针对一类特殊的已知全部最优解的带平衡约束的圆形Packing考题求解，报告了一种基于不适合多边形(No-Fit-Polygon， NFP)的确定性启发式算法(Fixed Heuristic Algorithm，简称FHA)。

By exploiting the special structure of symmetric circulant system, the problems of solution of these systems can be simplified to change the problems of lower dimension systems.

研究具有对称循环结构的广义大系统Lyapunov方程和Riccati方程的求解化简问题，利用简化的解求得复杂系统的最优控制问题。

Simulation results show that the rectangular-grid array on a cone with circular polarization is the optimal configuration of the conformal array in guided weapons under the same parameters.

仿真结果表明，在同等参数配置条件下的圆极化圆锥矩形栅格阵列可以作为制导武器共形天线阵列的最优配置方式。

Simulation results show that the rectangulargrid array on a cone with circular polarization is the optimal configuration of the conformal array in guided weapons under the same parameters.

仿真结果表明，在同等参数配置条件下的圆极化圆锥矩形栅格阵列可以作为制导武器共形天线阵列的最优配置方式。

First, the state～space equation of the circular inverted pend ulum system was established based on the Lagrange Equation. On the base of that, the circular inverted pendulum was swung up by the energy control strategy, and the controller of the system was designed by the pole placement of the optimal control theory. Second, in order to realize the observation for the unknown vari ables, stable state observers were designed based on the equivalent principle of sliding mode variable structure.

该方案在采用 Lagrange 函数建立状态空间方程的基础上，利用能量控制策略实现自动起摆；采用最优控制理论中的极点配置法设计倒立摆系统的控制器；同时利用滑模变结构的等值原理设计观测器，实现对系统未知状态变量的观测。

In this paper we derive the. curve equation of tooth profile on the basis of its meshing principle and discuss the necessity and possibility of replacing the equidistant curve which in the circular section of lang arc external pendulum curve by circular arc.

本文从其啮合原理出发，导出齿廊曲线方程，论述了以圆弧替代长幅外摆线环形部分等距曲线的必要性和可能性，提出圆弧齿形替代要求，运用最优化方法，给出最优设计方案。

This paper has compared distribution of residual stress on the surface between circular and rectangular cold drawn section steel, and how to relieve the residual stress by means of high temperature heattreatment.

文中论述了该系统中的盲棋子空域的划分，通过对几种可选方案：矩形、正六边形、圆形的分析和比较，得出了在无线电盲棋导航系统中以正方形作为子空域最优。

3D seismic migration algorithms of holding circular symmetry ;2. Assuming that the point spread function is circular symmetry and considering that the image is actually complex conjugate symmetry in frequency domain, authors establish a new cost function in frequency domain.

算法假设退化系统的点扩散函数具有圆对称性，并考虑图像的频域具有复共轭对称性，在频域里建立了新的优化判据；采用共轭梯度算法搜索判据，从而在有实际物理意义的区域中收敛于最优解；对光学成像系统常见的离焦、衍射模糊问题进行了仿真；用该算法实现了其退化图像的恢复，给出并分析了结果。

Japanese politician Yuri Fujikawa, member of the Hachinohe city assembly in Aomori Prefecture, released a photo album Thursday to introduce scenic Hachinohe.

最近，日本东北青森县八户市的美女市议员藤川优里发售"写真集"介绍八户风光，希望用自己的美貌宣传家乡，带来观光效应。

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。