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computation space
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  计算空间
     A novel absorbing boundary condition, current absorbing boundarycondition, is introduced in the paper, which proven a simple construction, explicitconception, easy comprehension method in truncating the computation space.
     电流吸收边界条件的原理是:假设所研究区域被理想导体包围,并在该导体上放置合适的电流抵消出导体边界产生的反射波,以保证在边界上呈现吸收特性,不会因为加入边界而改变计算空间的场分布。
短句来源
     The algorithm will save the computing time and the computation space.
     该算法加快了生成元的寻找速度 ,节约了计算时间和计算空间
短句来源
     The approach can exploit the parallelism of computation space as high as possible, use the technique of data space fusion to optimize data distribution, and search the optimizing global computation and data decompositions.
     该方法能够尽量开发计算空间的并行度,利用数据融合技术优化数据分布,并能搜寻优化的全局计算与数据划分.
短句来源
  信息表示空间
     The essence of human computer interaction (HCI) is the mutual mapping between the cognitive space of human and the computation space of computer.
     人机交互的本质是人的多维信息认知空间和计算机的信息表示空间之间的相互映射。
短句来源
  “computation space”译为未确定词的双语例句
     A New Method for Extension of FDTD Computation Space for Transient Scattering
     扩大瞬时散射场FDTD计算区域的新方法
短句来源
     Based on a spatial decomposition of the regular grid structure, the FDTD computation space is divided into some sub-domains.
     本文采用区域分解技术将FDTD计算区域分割成多个子域进行分别计算,各个子区域在边界处与其相邻的子区域进行切向场值的数据交换以使整个迭代进行下去。
短句来源
  相似匹配句对
     T-SPACE
     ■-空间
短句来源
     SPACE
     空间
短句来源
     Accurate Computation of the Space Angle
     空间角度的精确计算
短句来源
     RESEARCH ON MODEL COMPUTATION OF THE SPACE ANGLE
     空间角度模式计算法的研究
短句来源
     On the Limit Computation
     关于极限计算的探讨
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  computation space
To obtain RBLSA with optimal number of PEs, the accommodation of the inner computation space of the systolic algorithm to the projection direction vector is performed.
      
In this context, we have shown that it is likely to speed up the computation process by carefully pruning the computation space.
      
Because reflection is not studied, short input WG can be used, which limits the computation space.
      


Long-term transmission expansion plannimg LTTEP is consisted of single-stage static programming and multi-stage dynamic programming.This paper proposed a new concept of critical feasibility and a new algorithm of configuration matching which has a high computation speed.On the basis of these two concepts ,the author developed a critical feasible matching method for dynamic programming solution. First,static planning is performed at every single planning stage to get criticat feasible configurations,Second, dynamic...

Long-term transmission expansion plannimg LTTEP is consisted of single-stage static programming and multi-stage dynamic programming.This paper proposed a new concept of critical feasibility and a new algorithm of configuration matching which has a high computation speed.On the basis of these two concepts ,the author developed a critical feasible matching method for dynamic programming solution. First,static planning is performed at every single planning stage to get criticat feasible configurations,Second, dynamic planning is executed in which configuration matching is performed to obtain dynamic decisions,the one with minimum dynamic cost(present value )is selected.The critical feasible matching method decreases greatty computation space and time of dynamic programming and can obtain the optimal and a number of cost competitive expansion plans.Also,this method make it possible to seperate LTTEP problem into two tasks,that is static programming and dynamic programming which can be solved independently in sequence.Many constraints of long-term plannimg is more easy to be considered in the process.The structure of the computer program become more simplified and modulized.The critical feasibility and the matching algorithm are new and important concepts in LTTEP. The dynamic programming based on these concepts presents a new and feasible method in lomg-term expansion planning of large-scate transmission networks.

本文提出用“临界可行结构匹配法来求解输电网的多阶段动态规划问题。方法的要点是:先对各个规划阶段分别作静态规划,搜索出各阶段的“临界可行结构”,由此形成动态规划的求解空间。然后在此空间中把不同阶段的临界可行结构进行匹配同时结合分枝定界法搜索得出动态最优解。实际系统的应用举例表明了本方法是实用的和十分快速的。

The technique of un-uniform grid spaces for the Finite-Difference Time-Domain method (FD-TD method) has been developed in electromagnetic problems. In order to increasing the spacing resolution it is not necessary to fine the all computation space by using this method. Only the interested subdomain need to be fined. So the memory space and CPU time will be obviously saved. The feasibility of this method was certificated by the examples computed in two dimension.

本文提出了一种在电磁场计算的时域有限差分法中使用非均匀网格空间的技术。用此方法只需把需要提高空间分辨率的局部区域的计算网格成倍地细分,而不必把全部计算空间均改用相同的网格,从而可以大大节省存储空间和计算时间。在二维空间通过计算实例证实了所提方法的可行性。

Using non-uniform mesh FDTD method to extend the computation space in analizing transient scattering is presented in this paper. In condition of the compared or reduced memory and the limited amount of computation, it is beneficial to apply the space time window technique, and the results obtained by this method are more accurate and reliable. As an example, the transient scattering of a circular cylindrical catterer is considerd using various approximately absorbing and non-uniform mesh FDTD...

Using non-uniform mesh FDTD method to extend the computation space in analizing transient scattering is presented in this paper. In condition of the compared or reduced memory and the limited amount of computation, it is beneficial to apply the space time window technique, and the results obtained by this method are more accurate and reliable. As an example, the transient scattering of a circular cylindrical catterer is considerd using various approximately absorbing and non-uniform mesh FDTD method.

本文采用非均匀网格来扩大瞬变电磁场FDTD法计算区域,可在不增加甚至减少存贮量和计算量的情况下,有利于空间时间窗的应用,减小或避免截断边界对计算结果的影响,提高其精度和可靠性。本文以圆柱目标为例,讨论分析了采用吸收边界条件和本方法所得结果的可靠性。

 
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