The beginning of this article presented a scenario in which the use of standard xsl techniques for looking up data in distinct subtrees of an xml document used excessive amounts of compute time 本文的开头演示了这样一种方案:在xml文档的各个独立的子树中使用标准xsl技术查找数据,会花费过多数量的计算时间。
In order to minimize computing time , simplified prediction procedures are provided , which transform parameter seeking into arma process , and computing complexity and duration are decreased 为了减小计算量,本文对farima模型拟合的方法和具体步骤进行了深入的研究,简化了运算步骤,提出了一种简化的预测方法。
The advantage of this algorithm is that its computing quantity and computing time are less than the divide - and - conquer algorithm of k . y . li . with good parallelism in nature , it is quite suitable for parallel processing 该算法利用割线法迭代计算广义特征值,具有计算量少,计算速度快的优点,并且算法具有内在并行性。
This method can reduce false diffusion in the numerical simulation , ease the difficulty of the mesh generation , and control the numbers of the mesh , which can save the computing time efficiently 这种网格划分的方法可以有效的减小数值模拟中的伪扩散,大大减轻了网格生成的难度,使网格数量不至于过大,有效地节省了计算所花费的时间。
But this method is too complex compared with our method and it exhausts a long computing time . the author compiled an algorithm to accelerate convergence speed . this method has a special requirement on simulation software , so its application is limited 局部电离积分法的优点在于精确度高,但比较复杂,计算时间长,作者自己还编制了一套算法以加快收敛,对仿真软件也有特殊的要求,所以此方法的使用范围受到了限制。
Using this method , the simulation can be performed with large step ( low order wavelet ) for transient state response , and small step ( high order wavelet ) for steady state response so that the excessive computing time for transient state simulation can be saved 该方法可以对电路瞬态响应过程用大步长(低阶小波)模拟,而对稳态响应过程用小步长(高阶小波)模拟,从而避免了为得到电路稳态响应而在瞬态响应时期花费大量的模拟时间。
The implementation of decomposition optimization and the integration analysis of msc / nastran in optimization shorten the computing time of optimization , decrease the work intensity of designer and improve optimization efficiency greatly . furthermore , visualization is realized by setting the menu into patran 层次分解优化方法的实现和msc / nastran在优化中的集成分析,缩短了优化计算时间,降低了工程设计人员的工作强度,大大提高了优化设计效率。
The subregion with pure dielectric layers is analyzed by mol and the fast fourier transform ( fft ) is introduced to reduce the computing time , while the subregion with conductors is analyzed by fdfd to take advantage fully the superiorities of these two methods 通过在纯介质区域使用直线法,导体所在区域使用有限差分法分别进行求解,充分发挥两种方法各自的优越性。由于在纯介质区域中使用了直线法求解,因此该算法具有计算时间与介质层厚度无关的突出优越性。
Effects of sea tide should be considered in modeling groundwater dynamics and associated contaminant transport in coastal aquifers , which may result in significant increase of computing time especially for variable - density contaminants , and superior numerical performance of the model is required 摘要模拟沿海地区地下水及污染物的输移需要考虑海洋潮汐的影响,对于变密度污染物,考虑潮汐的影响会大大增加模型计算量,模拟此类问题要求模型具备优良的计算效果。