vector fields造句
例句与造句
- in the fourth part, by using the bifurcation theory of planar dynamical systems and the method of detection functions, the paper gives a configuration of limit cycles forming compound eyes . with the help of numerical analysis ( usi ng maple ), it is shown that there exist parameter groups such that a z7-equivariant planar polynomial vector field of degree 7 has at least 36 limit cycles with z7-symmetry
然后，对于一组特定的参数值，研究了它的相轨线的变化趋势；第四部分指出：在一定的条件下，利用平面动力系统分支理论以及判定函数法，在计算机数学软件(maple)的帮助下，得到结论：7次z_7-等变平面向量场至少有36个极限环，形成具有z_7?对称性的极限环分布。 - the drag reduction of riblet biomimetic non-smooth surface is given out by numerical simulation with cfx . through analysis of velocity vector field and velocity fluctuation this article probe into drag reduction mechanism of unsmooth surface . through analysis of behavior of single microbubble and turbulent kinetic energy this article indicate drag reduction mechanism of microbuble
对仿生非光滑表面减阻机理,采用流体力学分析软件cfx进行了数值模拟,通过对速度场、剪切应力、涡量的计算结果进行分析,得出了仿生非光滑表面减阻几种主要原因。 - sts produces substantially better visual results . sts is faster than lic ( linear integral convolution ) texture-based method . 2 ) in order to overcome the lic's shortcoming that only presents direction of the vector field, multi-granularity lic and image blend technique which can present the magnitude and direction at one time are proposed
2)提出了多粒度lic纹理和图象混合技术，它们能很好地同时表示矢量的大小和方向，从而克服了lic纹理方法只能表示矢量方向而不能表示矢量大小的缺点。 - presents a method for sfs based on model of polyhedron . we carry out the algorithm by solving a overdetermined linear equations which is constructed through the distributing of the vector field . the algorithm can reconstruct 3d surface from photometric stereo image given the direction of illumination
针对目前“从明暗恢复物体形状方法”存在的问题，提出了以多面体模型为基础的快速算法，根据向量场的分布建立关于物体表面深度信息的超定线性方程组，在最小二乘意义下求得物体表面的深度值。 - in the first part, hilbert's 16th problem and the studies on it are introduced, and the results of zq-equivariant vector fields of degree 5 ( q = 2, 3, 5, 6 ) are given . in the second part, the definitions of zq-equivariant vector fields and the method of detection functions are stated, and all the forms of nontrivial zq-equivariant planar polynomial vector fields of degree 7 are obtained . in the third part, a concrete numerical example of zt-equivariant perturbed planar hamiltonian system of degree 7 is constructed, and for the unperturbed vector field having maximal number of centers, its global phase portraits are analyzed ( having at least 9 topologically different phase portraits ) . then, for a given parameter group, its phase portrait trend is studied
第一部分介绍了hilbert第16问题以及它的研究与发展现状，给出了近年来利用李继彬提出的判定函数法得出的z_q-等变(g=2，3，5，6)的5次系统关于它的第二部分的研究结果；第二部分介绍了z_q-等变向量场以及判定函数法，给出了7次平面多项式系统的所有非平凡z_q-等变向量场具有的形式；第三部分给出了一个7次平面扰动hamilton系统，研究了它的具有最大中心数的未扰动系统(z_7-等变)的全局象图，得到了9种不同的拓扑图形。 - It's difficult to find vector fields in a sentence. 用vector fields造句挺难的
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