查询词典 topology structure

The characteristics of the hierarchial structure makes it have differ from to general topology.

在这38年中，它从起初的模仿性研究逐渐走上了创新的道路。

In this dissertation, the structure of MFNN and a training algorithm which can be easily implemented in hardware for a class of neural networks with general topology, are studied. Furthermore, the application of the redial basis function network, which can be classified as a type of MFNN, in the design of sliding mode controller is also investigated.

本文研究了多层前馈神经网络的结构问题和一种易于硬件实现的学习算法，还讨论了可以划为多层前馈神经网络的RBF网络在滑模控制器设计中的应用。

Thus, the -general structure topology optimization problem can be regarded as a material interface tracing problem.

其次在结构拓扑优化中还引入了黎曼测度下的平均曲率流正则化技术，以保证计算结果材料界面的光顺性，并有助于提高拓扑演化过程中的数值稳定性。

Based on the relationship between the structure and function, a lot of research have been performed on predicting base-pair which is indispensable to the RNA three-dimensional strcutrue. The tools and methods in Combinatorics and Statistics will play important roles in studying linear sequences of biomolocular units . Similarly, we can present the geometric representation of biological sequences and structures. So the genometric topology and group theory are important also.

根据RNA的结构与功能的关系，在预测碱基配对的类型方面进行了相当多的研究，这也是确定RNA三维构象的必不可少的一部分，组合学和统计学的工具和方法在研究生物序列和生物结构上起到了很大的作用，同样我们可以用几何方法来表示生物序列和二级结构，几何拓扑和群论也起到了很大的作用。

A method to optimize the topology of grillage structure with stress constraints is presented.

提出一种应力约束下的格栅结构的拓扑优化方法。

A method of topology optimization of grillage structure with stress constraints is presented and applied to analyze the reinforced beam of raft foundation.

对筏型基础的加强梁分布进行拓扑优化分析，提出一种应力约束下的格栅结构的拓扑优化方法。

Compared with the global harmonic mapping method, this approach has the following advantages.(1) The efficiency of the algorithm is greatly improved. The computational cost involved no longer increases exponentially with the number of vertices of the meshes to be fused.(2) The algorithm is robust as the ambiguity in graph structure combination is alleviated.(3) The detail of the cut mesh is fully kept.(4) The topology restriction of the original algorithm is eliminated.

与原有的基于全局调和映射的融合方法相比，新方法的算法效率大幅度提升，求解时间不再随融合模型顶点数的增加而呈指数增长；减少了二维网格拓扑合并中奇异情况出现的概率，提高了算法的稳定性；被剪切网格的细节得到完整保留；消除了原算法对融合区域拓扑的限制。

This paper discusses the kernel of the system -- geometric model and includes the following:(1) The topological elements and the relation between them in geometric modeling system are explained and expressed by the theory of simplicial complex and CW-complex. In addition, the identification operators and homology theory in algebraic topology are used in our model. A hierarchical structure is built on the base of complex.

本文主要讨论这个系统的核心问题——几何建模问题，包括以下几个方面内容：(1)用单纯复形和CW复形的理论来解释和表达造型系统中的拓扑元素和拓扑元素之间的相关关系，并将代数拓扑中的粘合操作和同调论应用到模型中，建立以复形为基础的层次结构。

Identification and topology prediction of membrane proteins are significant in helping function annotation, function analysis and three-dimensional structure prediction, and guiding the protein research.

跨膜蛋白的识别和拓扑预测有助于基因组的功能注释、功能分析、蛋白的三维结构预测及指导蛋白的研究，具有重要意义。

Coordination Polymer; Crystal Structure; Imidazole; Topology; Transition Metal

配位聚合物；晶体结构；咪唑；拓扑结构；过渡金属

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。