圆环图

In this paper, we present an O time algorithm to solve the minimum circle-cover problem defined on circular-arc graphs based on the processor arrays with a reconfig-urable bus system which consist of a processor array and a reconfigurable bus system.

在本论文中，我们提出O(1)时间的演算法，以解决环弧图上最小覆盖圆的问题。我们的演算法乃使用可重组态汇流排系统之处理器阵列，它含有一处理器阵列以及一可重组态汇流排系统。

We try to use a modified Bernstein polynomial to reduce the number of variables when calculating the circle array. Finally we use PSO to optimize the circle array and obtain a beam form with a flat top which is needed in the practical design.

在计算圆环阵时尝试引入了修正的波恩斯坦多项式以减少需要优化的变量，并结合工程上的需要，用粒子群优化算法给圆环阵赋行计算得到了主波瓣是平顶的方向图。

This is useful if you use a style of chart such as Donut or Pie to display your data.

如果您使用诸如圆环图或饼图来显示您的数据，这是有用的。

Valid values range from 0 to 99% of the doughnut's radius.

合法值为圆环图半径的0至99%。

Finally the spatial distribution figure for electric potential is plotted and analyzed. This method can be used in calculating many similar problems. charged ring ; electric potential ; electric intensity ; elliptic integral

为原点，环轴为z轴，取圆柱坐标系，如图1所示，设尸为环轴外任意一点，下面来求圆环电荷在尸点产生的电位。l「do甲叹r，尹，z夕一二二丁{而一石二竺石万一=，诊L七OJ ql月、—月龟I (1)这个积

I believe that the power and important symbolic nature of the ring sculptures could also be successfully conveyed in one monumental "circular" stone and metal sculpture similar to the maquette illustrated.

我相信，"圆环雕塑"的力量与极具象征性的特征应当也能成功地在一个大型金属圆环及石头中得到体现，如图中模型所示。

Parallel to the nomographic method, the numeri- cal calculating method is also put forward here. As an example, the lead and aluminium rings are pressed with oil lubrication or with- out. The results of data processing by nomogram and the numerical calculating are compared.

在线图法处理实验数据的基础上，提出了理论计算法，并对铅、铝两种材料在有无润滑剂条件下进行了圆环压缩试验，比较了用线图法和理论计算法对实验数据的处理结果，指出了各种方法的优缺点。

This property is expressed as a fraction of the total space allocated for a doughnut.

该属性表示一个圆环图所分配的总空间的分数。

In order to get high gain, narrow main lobe and low sub-lobe antenna pattern, we synthetize the array pattern with Chebyshev method and Unconstrained method seperately.

本文分别采用切比雪夫综合方法和闭式综合法，对直线阵和圆环阵进厅综合，以求得到增益相对高、主瓣窄，副瓣电平低的阵列方向图。

To overcome the drawbacks in the weight and cost of the antenna with the corrugated soft surface, a new patch antenna with patch rings is designed. Its weight is about 1/4 less than the antenna with the corrugated soft surface and it is inexpensive. Good experimental results are obtained. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. In conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic-bandgap structures.

为了克服皱褶软表面天线份量重，加工费用贵等缺点，我们对空气介质的皱褶圆环结构软表面天线进行了改进，将周期分布的皱褶圆环平面化，并保持结构的软表面特性，设计出了一种新的平面圆环结构的软表面天线并进行了实验研究，加工的平面圆环结构天线比皱褶圆环结构天线重量减轻了约1/4，加工费用大大降低，所取得的实验结果显示，该平面圆环结构软表面天线的方向图的轴对称性得到了改善，在俯仰角从0°～-90°的范围内天线H面的波束与E面重合，与皱褶圆环结构相比，天线的旁瓣和背瓣受到了更大的抑制，E面方向图上+120°方向的旁瓣被明显削弱。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了