查询词典 planar developable surface

In this paper, we first study the game chromatic number on graphs, and then we give some examples for the lower bound about the game chromatic number of the planar graphs.

首先全面分析了图的点对策着色问题，对某些定理的下界，给出了具体的例子。

Specially,we construct some new kinds of planar graphs with circular chromatic number 3 or 4 based on the results which have been surveyed in part two.

其中第二部分在总结平面图的圈色数已有结论的基础上，还构造了一些新的圈色数为3或4的平面图。

Part two, three and four have made conclusions and evolutions about the circular chromatic number of planar graphs, Mycielski graphs and distance graphs.

第二、三、四部分分别总结了关于平面图、Mycielski图和距离图的圈色数的一些结论和这些问题的进展情况。

The main work of this paper is that we have given the edge game chromatic number of cycle likes, fan graphs, flowers, Halin graphs, and the upbound is sharp for cycle likes and Halin graphs, it is also a good example for the study of planar and outerplanar graphs.

主要的工作是对一些特殊图类的边对策色数进行了研究，给出了类圈图，扇图，花形图和Halin图的边对策色数的上界，并且证明了关于类圈图和Halin图的结果是紧的，这就给平面图，外平面图的研究提供了很好的例子。

In this paper, we give some group chromatic of simple planar graphs .

在本文中，我们给出了一些简单平面图的群染色数。

Rare earth chromophore is then considered as the perfect candidate for making active planar waveguide films.

因此，稀土配合物是制作有源平面光波导复合薄膜的理想材料。

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。

Second, proceeding with the fact thatthe constructing vector wave functions of conventional circular cylindrical and sphericalvector wave functions are linear independent solutions to the electromagnetic field waveequations in biisotropic medium,spectral impedance boundary conditions are proposed forinfinitely long perfectly conducting circular cylinder and sphere coated with biisotropic media,respectively,which generalize the applicable range of planar structures and are suitable toanalyze the electromagnetic problems involving their counterpart structures.

所用的方法是在Fourier变换谱域中的一阶线性微分方程组理论和矩阵技术，提出了适用于Chiral媒质半空间辐射问题的耦合镜像原理(即镜像电流的振幅和相位是由Chiral媒质中的本征左、右旋圆极化波相互耦合来确定的)和适用于研究平面分层Chiral媒质电磁问题的一般性更高的分析方法。

The planar vibration of a thin elastic rod with circular cross section in viscous medium is discussed.

讨论圆截面弹性细杆在黏性介质中的平面振动。

Stability of liquid planar sloshing wave in a circular cylindrical tank with translational motion is investigated by Floquet-Lyapunov method.

应用Floquet-Lyapunov方法研究了作水平横向运动圆柱贮箱中液体"平面"晃动波的稳定性问题。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样