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With the help of the digital simulations, enlarged transect window hoods were investigated.

通过数值计算对断面扩大开口缓冲结构进行研究。

Beginning with wave equation, the paper has deduced the propagation of gauss pulses in single mode fiber and fiber grating transmission compensation. The characteristics of cascaded phase-shift gratings are discussed by numerical simulations of coupled-mode theory and T-matrix method. The experimental works and measurement results are shown in this paper. On the other hand, we have introduced the basic theory of EDFA and figured out the characteristics for EDFA at different conditions by numerical simulation. Some experimental results for EDFA are also presented here. In this article, you can find the influence on Optical Fiber Amplifier by Gain Tilt, especially, the negative effect on CSO in CATV transmission system.

论文首先从波动方程入手，对高斯脉冲在单模光纤中的传播演化及光纤光栅透射补偿进行了详细的研究；较系统地介绍了光纤光栅的耦合模理论，并将传输矩阵计算法用于计算级连相移光纤光栅的光学特性；重点介绍了作者在光纤光栅刻制及特性测量方面所做的一些实验研究工作；较系统介绍了EDFA的基本理论，计算出各种条件下EDFA的光学特性，并进行了一些实验研究；综合分析光纤放大器对光纤传输系统的影响，特别分析了光纤放大器增益不平坦对光纤CATV系统中CSO恶化的原因及其解决方法，并研究了光纤布拉格光栅在稳定980nm泵浦源输出功率和输出波长方面的应用；结合一个基于光纤光栅和光纤放大器的光纤用户接入网方案，对光纤用户接入网的若干问题进行了理论与初步的实验研究。

Also some Monte Carlo simulations of transmittance were done to evaluate the loss of light.

此外，我们也做了蒙地卡罗模拟来分析光的损失量。

In the mechanism of TRC,idle states of the system bus were detected and all the redundant simulations in these periods were skipped.

基于时间域的仿真冗余压缩方法通过监测总线工作状态，消除总线空闲下的系统冗余仿真。

The minimal energy conformations of host-guest complexes were obtained with Tripos force field. Molecular dynamics simulations were carried out to investigate chiral molecular recognition and the distribution of hydrogen bonds. The energies of recognition system were calculated with MM+ force field as well.

首次将分子力学方法引入卟啉的手性分子识别领域的研究；用Tripos力场研究了主客体配合物最低能量构象，比较了同一主体与互为对映异构体的两个氨基酸甲酯形成的配合物的能量差异；用分子动力学模拟方法研究了手性分子识别行为及体系的氢键分布；用MM+力场研究了识别体系的能量。

Numerical simulations of the flexural process of the trisection specimens of concrete were executed, as well as the influence of configuration of aggregates on computing results was analyzed, by which showed that the method proposed is valid and feasible.

通过全级配混凝土试件三分点弯拉损伤破坏过程的数值试验，验证了所编程序的正确性。同时，讨论了骨料形态对混凝土动弯拉强度的影响。

Seasonal variation of methane, water vapor, and nitrogen oxides near the tropopause: Satellite observations and model simulations

对流层顶附近的甲烷，水蒸气和氮氧化物的季节性变化：卫星观测和模式模拟

Simulations show our proposed model can ensure users to execute resource trades more securely and trustworthily,with costing a few more time.

很多研究人员认为：为了创建一个实用的虚拟

Based on the special design requirements of high frequency circuits in communication systems, the simulations of the process flow and physical characteristics of small-scale (the base width is under 100 nm),ultra-high frequency(the characteristic frequency is upon 15 GHz) bipolar transistors were simulated.

基于通信系统中射频电路设计的特殊要求，对小尺寸(基区宽度低于100nm)、超高频(特征频率高于15GHz)双极晶体管工艺制程和器件的物理特性进行了模拟，为工艺线流片进行可行性研究。

Valuation of movement probability has remained difficult to solve up to now without appropriate solution given to it.Today the movement probability used in ore-drawing simulation is still with traditional valuation all through,but it is unadaptable to mining simulations nowadays.

移动概率赋值问题至今没有一个很好的解决方法，现今的放矿仿真使用的移动概率仍然为传统的移动概率赋值方法，并且是始终不变的，已经不能适应现今矿山的仿真要求。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。