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The geometry strategy of POD using carrier phase epoch-wise differency and P code is studied by the simulated data in order to achieve the decimeter accuracy level. The accessment method of POD results is also discussed. The contributions of this paper are as follows. Firstly, with the analysis of the CHAMP data, the space environment of LEOs and its influence is discussed.

本文主要工作如下：首先，结合CHAMP卫星实例数据，分析了低轨卫星所处的空间环境对GPS信号的影响，研究了6PS卫星星座和LEO卫星星座的摄动运动问题和星载GPS观测误差模型问题，建立了低轨卫星GPS测量信号仿真平台。

The effect of anaerobic biological treatment on decoloration of dye wastewater was studied under the simulated experiment conditions.

模拟中温厌氧消化条件，对模拟染料废水的厌氧生物处理进行了研究。

Using finite difference time domain method, the electromagnetic field distribution of THz wave is simulated in a THz 2D PC splitter and by plane wave expansion method the dispersion relation and defect modes are achieved in a THz rotated PC waveguide.5. A woodpile three-dimensional (3D) PC with face-centered-tetragonal symmetry is one of the most popular 3D PCs because of its favorable band gap characteristics. Based on the woodpile fct lattice structure, we propose a novel woodpile THz lattice structure with comparatively decreased symmetry, better band gap properties and easy fabrication by varying some structure parameters.

计算结果为利用非线性光学差频方法产生THz辐射源的实验研究提供了深入和全面的理论基础；四、利用平面波展开法，通过改变二维THz光子晶体的结构参数，对二维THz光子晶体完全带隙进行了优化，分析出两种适合工作在THz波段的二维光子晶体结构；采用时域有限差分法和平面波展开法，计算出THz波在二维光子晶体"T"型分束波导，45度旋转波导中传输的电磁场分布以及缺陷模；五、Woodpile面心立方四角结构是三维光子晶体中被研究最广泛的结构之一。

The experiments of drought and simulated defoliation were conducted to examine the ecological responses of seedlings in Quercus liaotungensis.

通过干旱处理和去叶试验研究了辽东栎幼苗的生态反应。

The characteristics of this deformable mirror is analyzed and simulated in detail and the simulation result agrees well with the measured result.

对该微机电系统微变形镜的变形特性进行了详细的理论分析和模拟研究，并和实际测量结果进行了比较，得到了满意的结果。

The simulated image indicates a high degree of accuracy and demonstrates that this method is valid.

结果分析表明得到的仿真图像具有较高的逼真度，该星载SAR图像仿真方法是有效的。

This paper presents an improved variable stepsize BP learning algorithm by making use of the concept of model approximation degree and by taking advantages of the merits of simulated annealing method.

基于模型逼近度和接受概率的一个变步长快速BP学习算法叶东毅（福州大学计算机科学系福州350002）摘要本文给出模型逼近度的概念。

The influence of local stiffness degression resulted from damage in the impact process is simulated by modifying the material constants of damaged layers.

另外，分类考虑了不同的损伤形式，通过修正损伤层的材料常数来模拟单层板损伤所造成的局部刚度下降对压痕过程的影响。

Then the Dempster's rule of combination is used to combine the belief functions of two sensors. The improvement on performance of receiver operating character with data fusion is simulated.

由于受到各种环境因素的影响以及传感器测量范围和精度等自身条件的限制，各种量测在一定程度上都是不准确和不完善的。

The simulated results of dendrite microstructure and particle distribution are in good agreement with the experimental.

模拟得到的颗粒分布及微观组织与实验结果吻合较好。

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％。