查询词典 computation time

By numerical simulations of occultation eve: its, it is proved that the new method not only has a simple mathematical expression and the minimum computer time consuming, but also a lower computation error.

它的研究成果将在国民经济、大气科学研究和高新武器的发展中起重要的作用。从而成为当前空间探测技术的研究热点之一。

Nevertheless, on one hand,there are no appropriate models or description for movement of fish in current research areafor graphics, on the other hand, the complexity of the physical computation on movement offish often leads to serious performance degradation which cannot be adapted to thoseapplication areas sensitive to time.

然而一方面图形领域中对于鱼类运动缺乏比较合适的描述和建模，另一方面物理计算的复杂性往往带来性能的严重损失，满足不了许多对时间要求较高的应用领域的需求，因此如何在视觉误差范围内对其计算处理进行加速就显得尤为重要。

In order to increase the rate of convergence, the refined mesh approach and local allowable time step size are used in the computation, and their effectivenesses are presented.

介绍了使用当地容许时间步长和加密网格法来加速计算收敛的效果。

In order to solve the problem that the Multi-objective Evolutionary Algorithm used in reactive power optimization currently has the shortcomings of time consuming computation, poor orientability and applicability,a ε-omination based MOEA was applied in reactive power optimization.According to different significance among objective components, an adaptive ε-omination was created and relevant post-evaluation fuzzy logic controller was established to select solution.

针对多目标无功优化方法存在寻优时间过长，优化结果针对性不强以及难以实现自动实时控制的问题，将一种基于ε-支配域的多目标进化算法应用到多目标无功优化的求解中，根据多目标模糊评价函数各目标分量的不同重要程度，构建出自适应ε-支配域，生成相应的后评价模糊控制器以实现优化结果的智能选择。

This simulation sharply reduced computation expenses ,therefore can quickly estimate peen forming processs time and result, and find an optimal solution subject to specific conditions.

大大缩短了数值模拟计算时间，并可快速估量喷丸工艺时间以及喷丸成形整体效果，制定喷丸工艺优化方案，从而能够在很大程度上避免了实际生产中常用的试错方法。

Based on the variational principle of virtual voltage and virtual displacement derived in this thesis and the classical theory of linear laminated plates, and by using the constitutive equations of elastic piezoelectric materials, and the DKQ quadrilateral plate bending element, the finite element modeling for the fabric reinforced laminated plates with nonlinear voltage-electric strain relationship of piezoelectric actuators has been established for the first time in this thesis. And the expressions for the electric loadings with obvious mechanical meaning and convenient for computation are established, which can be used to the deformation analysis of laminated plates with piezoelectric actuators under specified voltages.

以本文直接导出的压电结构的虚电势—虚位移变分原理为基础，依据经典线性层合板理论和压电弹性体的本构方程，采用基于离散法线假设的DKQ四结点任意四边形薄板弯曲单元，首次建立了考虑非线性电压—电应变关系的含压电致动器的纤维增强型层合板的有限元分析模型，并推导建立了力学意义明确、便于计算的电荷载表达式，可用于指定电压条件下纤维增强型叠层合成板的变形分析。

Compared with the linear interpolation and quadratic interpolation channel estimation based on polynomial models, it has the characteristic of low complexity, simple arithmetic and real time computation.

相对于其他线性插值及二次插值的插值信道估计方法，该方法具有计算复杂度低，算法简单，可以实时计算等特点。

Simulation results show that this kind of swarm algorithm can greatly reduce the amount of computation to meet the requirements of real-time animation.

仿真实验结果表明，这种新型的群聚算法能极大的减少计算量，满足动画实时性的要求。

During the simulation, surface current from primary electrode is computed. Taking rectangular triangle as the mesh unit, the integral formula of surface current can be simplified to a product of a difference expression and the surface area. So the computation complexity of FEM will be decreased and the time-cost will be cut down greatly.

在模拟过程中，需要计算主电极表面电流，通过选用直角三角形作为离散单元，将表面电流的二重积分表达式简化为一个差商表达式与主电极表面积的乘积，极大地降低了有限元分析的复杂度，减少了计算时间。

At the same time, other research on the followings: how to choose a proper replace project plane, discussing replace region, making out reference ellipsoid parameters, transferring the geodetic coordinate system to the regional coordinate system, seeking for the proper way to choose coordinate system.According to the research on the second degree GPS control nets of WeiHai, a fully and systemic account is generated from layout、 choosing a coordinate system and checking the original datum to the objection and adjustment computation.

本文通过对威海市城市二等GPS控制网的研究，从设计、选择坐标系统、起始数据检验、到观测、平差计算等工序作了系统的论述；通过威海城市二等GPS控制网高程拟合问题的讨论，研究高程拟合的适用范围，选择合适的高程异常已知点，尤其对于高程异常变化剧烈的山区，高程拟合的精度问题进行了研究。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。