因此，离散变量结构拓扑优化的研究具有重要的理论和实际意义。
Therefore, the research on topology optimization of structures with discrete variables has important theoretic significance and actual significance.
采用改进的遗传算法，求解了具有屈曲约束，尤其截面积是离散型的桁架拓扑优化。
We present an improved genetic algorithm(GA) for topology optimization of a truss with discrete sizing and under local buckling constraints.
研究了基于莫尔斯理论的离散梯度向量域方法，并将其应用于拓扑可视化。
The discrete gradient vector filed based on the Morse theory is presented, and is applied to visualization of topologies.
连续体结构的拓扑优化本质上是一种0-1离散变量的组合优化问题。
Topology optimization of a continuum structure is essentially a 0-1 discrete variable optimization problem.
将相对差商法和混沌优化结合起来，形成求解离散变量桁架结构拓扑优化设计的混合算法。
A hybrid algorithm for topology optimization of trusses with discrete variables is developed which combines relative difference quotient algorithm with chaos optimization.
根据单线列车运行调整的特点，建立了单线列车运行图的离散事件拓扑图模型，并在此基础上提出了单线列车运行调整的迭代修复算法。
A discrete event topologic diagram model was derived according to the characteristics of the single-track railway diagram, and an iterative repair method was developed on the basis of the DET model.
讨论了赋予局部有限拓扑的非空闭子集超空间的连通性，还引入了一个对讨论局部有限超拓扑有用的基数函数，称为离散度。
The connectedness of the non-empty closed subsets hyperspace with locally finite topology is discussed and a cardinal function called discrete degree is introduced.
数字拓扑主要研究栅格空间中离散几何对象的拓扑性质，这些性质在GIS空间分析和栅格数据处理中非常重要。
It is essential to the spatial raster data structure of GIS; in fact, all spatial analysis about raster data is based on the digital topology.
该方法可以从离散的点集中提取出具有某种拓扑几何形状特征的目标对象。
Some kinds of objects with the geometric characteristics wishing to be needed are extracted from the discrete point-sets.
该方法可以从离散的点集中提取出具有某种拓扑几何形状特征的目标对象。
Some kinds of objects with the geometric characteristics wishing to be needed are extracted from the discrete point-sets.
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