计算时间

The experimental results show that the algorithm based on directed acyclic graph by the spacial relation among changing data can improve computing performance of an extraction of graphical data.

结果表明，基于有向无环图表示的数据抽取算法利用变化数据的空间关系能够提高计算性能，且算法的计算时间与变化数呈线性关系。

A two-steps numerical method has been used to deal with this process. In every computation time-step, two phases are used: the first one is the adiabatic expansion and cracking phase; the second one is the phase of absorbing laser energy.

采用两步数值计算方法处理等离子体微滴的爆炸过程，即在每一个数值计算时间步长内，将爆炸过程分为两步，第一步处理微滴的绝热膨胀及裂解过程；第二步处理微滴对激光脉冲能量的吸收过程。

It is unnecessary to calculate the element fault current, but through alternating the resistance coefficient matrix directly to acquire the resistance of ground grids.

本文对此进行了较简便的优化，不必假设总的泄漏电流，而是通过矩阵变换直接求出接地电阻，从而大大提高了计算精度和计算时间。

This paper presents a fast algorithm based on the measured equation of invariance.Conformal meshes are made along the surface of two-dimensional scatterer.Renumbering of nodes changed the original sparse matrix into band one,and the consumption of computer memory and CPU time decrease from O(N2) to O.Via this new algorithm,electrically large problem can now be rapidly solved.

提要 本文基于不变性测试方程法提出一种快速算法，在二维散射体表面建立共形差分网格后，通过对节点的重新排序，将原问题中的稀疏矩阵变换为带状稀疏阵，从而使占用的计算机内存和计算时间均由O(N2)下降为O，可以解决原来无法计算的问题。

It is related to the variational inequality problem, bilinear programming, nonlinear equation. So there is actual meaning and theories value to study how to solve it.In recent years, many algorithms for solving the generalized linear complementarity problem are put forward. But they basically belong to the traditional iterative methods, and may not be efficient since the computing time required for a solution is greatly dependent on the dimension, structure of the problem and the complexity of the algorithm used. Different from the traditional algorithms, the neural network has many advantages on calculations and real-time applications for its inherent massive parallelism and electric circuit implementation.

近年来，人们对广义线性互补问题提出了许多算法，但这些方法基本上属于传统的迭代法，由于它们的计算时间极大地依赖于问题的规模、维数以及所使用的算法，因此很难满足实时并行的要求，与传统数值方法不同，由于内在的并行分布处理信息的特点及电路实现的潜能，神经网络有着许多计算上的优势和实时性的应用，自Hopfield提出著名的人工神经网络模型-Hopfield神经网络，并将其成功应用于优化问题后，用神经网络求解优化问题得到了相当深入的研究，并取得了许多重要的成果。

The computing complexity and computing time of this algorithm is lower than that of existed algorithms.

该算法比已有的块三对角矩阵求逆算法的计算复杂度和计算时间低。

One part of the calculation using the computer program to complete the self, reducing computing time and improve efficiency.

其中的一部分计算采用自编的计算机程序完成，有效的减少了计算时间，提高了效率。

In calculation, the discretization of continuity equation is performed in accordance with semi-implicit Scharfetter-Gummel scheme and the electric field is solved by the current conservation instead of the Poisson's equation, so it saves plenty of time for calculation.

在计算中，对于粒子的连续性方程我们采用Scharferter和Gummel提出的有限差分方法，并用电流守恒方程代替泊松方程来求解电场，从而节省了大量的计算时间。

Practical calculation shows that the proposed method can improve the convergence under large power angle conditions and also reduce the computing time by more than 80 percent.

实例计算表明，场路耦合端点量迭代法能改善大功角稳态工况下算法的收敛性，并使计算时间缩短了80%以上。

Mayergoyz I D. Boundary integral equations of minimum order for the calculation three-dimensional eddy current problems. IEEE Trans on Magn, 1982, 18(2):536～539[2] Kalaichelvan S, Lavers J D.

从一定意义上讲，本文所介绍的三分量边界元算法是求解三维线性涡流场的最小自由度方法，它不仅占用的计算机内存和计算时间少，而且计算精度较高。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。