查询词典 topological dimension

Through topological analysis, draw out the topological characteristic of near field in slot jet: the amount, connecting forms of critical point and primary bifurcation, it have the same topological characteristic with round jet in despite of they have a different flow forms.

我们发现虽然有限长窄缝射流与圆孔射流在流动情况上存在一定差异，但它们近区流场的拓扑性质却是一致的。

Yi-shi Duan to study the Chern class and Chern-Simons topological field theory, and the various topological structures in early universe cosmology and condensed matter physics with the corresponding topological field theories.

本论文研究了U（1）和SU（2）规范势分解理论，并运用段一士教授所提出的Φ-映射拓扑流理论研究了陈类和陈-Simons拓扑场论，以及早期宇宙和凝聚态。。。

Thus, a topological rubber glove is ofsuch a structure that is topological achiral and has topological point group 〓 in 〓space.

我们的结果表明：具有拓扑点群〓的分子是拓扑手性的；具有拓扑点群〓的分子是拓扑非手性的；如果一个分子在三维空间具有拓扑点群〓，那么这个分子具有拓扑橡胶手套的性质。

Topological indexes of A , B , C and D were all obtained from the different combination of topological vertex degree. A QSAR equation for this series of compounds was established based on the multi-linear regression method and a new group of autocorrelation topological indexes. The results showed that the biological activity is linearly correlated with the volume and branching size of the quinclorac derivatives. Finally, new herbicide was designed based on all QSAR results.

针对应用经典结构参数和量子化学参数得出的结果不够理想的问题，对点价自相关拓扑指数进行了研究，建立了一组新型的点价自相关拓扑指数A、B、C、D；首次将该指数用于除草剂氯喹酸酯类化合物的定量构效关系研究中，建立了很好的定量构效关系方程，综合分析所有的QSAR结果设计出了潜在的新型除草剂氯喹酸烯丙酯。

In terms of the topological invariant in Riemann-Cartan spacetime proposed by Prof. Duan and the φ-mapping topological current theory, we gave the cosmic strings with the complex scalar field and showed that the strings appear in the zeroes of the scalar field. Meanwhile one can find that the length of cosmic strings is quantized in the topological level and the quantum number is determined by Hopf indices and Brouwer degrees.

以段一士教授提出的Riemann-Cartan流形中的新拓扑不变量为基础研究了宇宙弦的拓扑结构，指出宇宙弦只能存在于复标量场的零点处，而且在拓扑层面上是量子化的，而该量子数决定于Hopf指数和Brouwer度。

We study the relation between topological sigma models and generalized geometries. The existence conditions for the most general type of topological sigma models obtained from twisting the N=(2,2) supersymmetric sigma model are investigated, and are found to be related to twisted generalized Calabi-Yau structures. The properties of these topological sigma models are analyzed in detail. The observa....

六标准差从1987年在摩托罗拉公司推行至今，已近20个年头，从一开始制造面的改善，延伸到非制造性的企业流程当中，它不但有效地变化员工能力与态度，也为企业带来突破性的营运改善，全方位提升企业竞争力；但事实上，六标准差管理活动导入对企业是一大变革性的挑战，因为其中牵涉策略、组织。。。。

5Topological inversion is applied to solve the transition problems from topological graph to practical gear train mechanisms. Four variant directions of topological inversion is noted and topological inversion chart library is founded.

5运用拓扑反演解决了由轮系拓扑图过渡到实际轮系机构的转换问题，指出拓扑反演的四个变化方向，建立了周转轮系的拓扑反演图库。

While this decomposition should allow a topological management on significant objects, a direct topological management on simplexes would waste too much space on the storage medium, and the topological relationships on every simplexes are not really interesting.

这种分解应该允许一种对重要对象的拓扑操作，一个直接对的单个目标拓扑操作太过于浪费存储空间，并且每个单个物体的拓扑关系并没有什么意义。

Topological structure: The mesh topological data are used to depict the space geometric shape, namely, the topological structure formed by several mesh units constructed by a certain connection order. They have types of points, line-segments, triangles, polygons, tetrahedrons, hexahedron, pyramids and cuneate shapes.

拓扑结构：网格拓扑数据是用来刻画数据分布区域的空间形状，即若干网格单元按一定的连接顺序所构成的拓扑组织，其类型有点、线段、三角形、多边形、四面体、六面体、角锥体和楔形等。

A nonlinear dimension chain has both length dimension variable and the angular dimension variable. So the nonlinear dimension chain can't be calculated by simple algebraic sum.

对于非线性尺寸链，既有长度尺寸变量，又有角度尺寸变量，不能运用简单的代数和求解。

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。