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Using simulations, we found the best geometry of the collimator is the one with a rectangle aperture and all of them are placed in two groups with an orthogonal orientation, which will have good resolution and sensitivity, and also be easy to manufacture. The rectangle aperture gives good imaging accuracy along the short side, and wide viewing along the long side. The orthogonal orientation for collimators will allow us to observe the source and the background simultaneously.

通过模拟发现，综合考虑了对强源成像的分辨率以及对弱源的灵敏度，以及加工的容易程度，论文提出了最优的准直器设计方案是用长方形准直器，并且将所有准直器分成两组，垂直摆放，一方面可以约束两个方向上的成像质量，同时具有较高的成像分辨率和定位精度，并且非常利于定点观测时的源和本底同时观测。

Combustion instability in liquid rocket engine is investigated with theoretical analyses, numerical simulations and experiments. Nonlinear science, such as Nonlinear Dynamics, Non- equilibrium Thermodynamics, and Wavelets, is introduced in the studies.Nonlinear oscillation equation of chamber pressure is established.

本文结合非平衡热力学、小波分析、非线性动力学等非线性学科，建立燃烧稳定性理论模型，发展两相喷雾燃烧非定常数值模拟程序，利用激光测粒系统，发动机高频热试系统等测试手段，重点围绕液体推进剂的化学动力学过程，对燃烧不稳定进行了较为系统的理论、仿真和实验研究。

Finally, Numerical simulations are carried out to show the effectiveness of the design based on Duffing oscillator.

最后对Duffing系统进行数值仿真，结果表明该控制方案是有效的。

Computer simulations and experiments are carried out with this model to find out the effects of drawing parameters on the fiber diameter.

利用该理论模型讨论了有关工艺参数对纤维直径的影响，并进行了纤维直径的实测。

10The simulations of an empirical model indicated that, when the outcrossing rate was no more than 1%, a 2 m buffer area with pollen receiver individuals between pollen donor and receiver was sufficient to minimize the frequencies of gene flow to .9%.

对栽培稻到其野生近缘种的基因漂移进行模拟的结果表明，栽培稻到野生稻的基因漂移频率较高并且可能会对邻近的较大范围内的野生近缘种群体造成影响。

The model simulations indicated that, when the outcrossing rate was no more than 1%, a 5 m buffer area with pollen receiver individuals between pollen donors and receivers was sufficient to minimize the frequencies of gene flow to .9%.

然而，对栽培水稻到其野生近缘种的基因漂移进行模拟的结果表明，栽培水稻到野生稻的基因漂移频率较高并且可能会对邻近的较大范围内的野生近缘种群体造成影响。

Computer simulations show that the two algorithms have good convergence and high stable output signal-interference rate and tracking capability.

计算机仿真表明了两种算法具有优良的收敛性和较高的稳态输出信干比以及在时变信道中良好的跟踪特性。

And FEA simulations of the overpressure experiments above were carried out.

对上面的次生冲击波试验进行了有限元仿真。

Simulations show that, with an appropriate "overproduce and choose" strategy or "thinning" algorithm, the proposed BAM ensemble significantly outperforms the single QLBAM in both storage capacity and noise tolerance capability.

计算机仿真表明，选择合适的"过剩生产与挑选并存"策略，即"稀疏算法"后，所提出的BAM集成在存储容量和抗噪声性能两个方面都显著优于单个QLBAM。

From the numerical simulations, the fundamental diagrams of mixing traffic flow with different mixing proportion of vehicles and the fundamental traffic flow diagrams of cars under different densities of pedestrain and bicycle are gaind.

考虑了两车道间的超车影响。通过计算机数值模拟，得到不同的混合比例下的混合交通流基本图及不同的自行车和行人密度下汽车的交通流基本图。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。