Compared with airborne SAR, such factors as complicated spaceborne SAR spatial geometric relationship, earth rotation and earth surface curvature etc. make the realization of spaceborne SAR/ GMTI complicated.

Main achievements of our work are as follows: A new mesh simplification algorithm based on surface curvature estimation is proposed in the paper and it is implemented on the basis of triangle collapse.

完成的工作主要包括以下几个方面：以三角形折叠方式为基础，提出了一种新的基于离散曲率的三角网格简化算法。

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The research conclusion is as follows: The change of surface curvature and deadweight in per-unit projected area larger, the influence of deadweight on form-finding larger.

可知，曲面曲率和单位投影面积内自重变化较大的索膜结构，其自重对找形的影响较大。

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Compared with models with simple Gurney flap, the models with the lower surface curvature modified have bigger lift-drag ratio, and it increases approximately by 14%.

而与单纯加装Gurney襟翼的模型相比，修改下表面后缘曲率的模型的升阻比可提高14%左右。

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The formation mechanism of porous InP with different structure is discussed combining surface curvature model for porous Si with surface state, and characteristics of InP wafers. 3.

同时，结合表面弯曲模型和表面态分析了不同形貌的多孔结构的形成机理。

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This paper intends to illustrate by the calculation of concrete examples that conductors are different in their electric charge intensity although they are identical in their surface curvature.

通过具体实例计算表明，在静电平衡的条件下导体表面虽然曲率相同，但电荷面密度却不一定相同。

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Point density distribution can be varied with the change of surface curvature and surface topology information is effectively reflected. Then, error evaluation method on surface is studied.

该方法使测点能够随曲面曲率变化进行疏密分布，有效的反映曲面的拓扑信息。其次，对复杂曲面的误差评定方法进行了研究。

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There was no significant difference in two groups in topograph of anterior corneal surface curvature between 1,3,6 month respectively ( P> 0.05).

术后1、3、6个月时2组角膜地形图前表面曲率各自无统计学差异（P>0.05）。术前屈光度高则手术预测性下降。

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Two-dimensional incompressible turbulent boundary layer growth on the blades is calculated taking into account the blade surface curvature effect and also the rotational effect.

考虑到叶轮旋转和叶片曲率的影响，求解了叶片表面的二元，不可压湍流边界层；

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We then self-adaptively re-sampled from laser scanning data by 3D feature extraction, inflexion detection and surface curvature estimation.

接着，通过边缘提取、拐点确定和表面曲率估计进行自适应重采样；

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In this paper the Direct Iterative Surface Curvature ( DISC) design method is presented for designing airfoils at transonic speeds.

本论文采用直接表面曲率迭代方法（DISC）进行跨声速翼型设计。

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Prediction of the effects of surface curvature and rotation on the turbulent boundary layers on the centrifugal impellers blades

曲率和旋转对离心叶轮叶片上湍流边界层的影响

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Observation of Cornea Posterior Surface Curvature and Naked Vision in Medium-and-Long Period after LASIK

准分子激光原位角膜镶磨术术后角膜后表面曲率与视力的中远期观察

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It is found that the surface curvature had a strong effect on the chain mobility of the adsorbed polystyrene.

我们发现，表面曲率对PS分子链段运动性有很大的影响。

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Optimization of Inner Surface Curvature of Color-picture-tube Panel

彩色显像管显示屏内表面曲率优化问题的研究

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A new mesh simplification algorithm based on surface curvature estimation is proposed and it is on the basis of triangle collapse.

以三角形折叠算法为基础，提出了一种新的基于离散曲率的三角网格简化算法。

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The measurement of diverging wave surface curvature radius with hologram Grating-Lens imaging method

测量发散波面曲率半径的全息光栅－透镜成像法

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Meanwhile the efficiency of self-collision detection is improved by taking advantages of the surface curvature criterion.

同时，引入表面曲率准则及法向量锥的概念，提高了自碰撞检测效率。

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Study on Tooth Surface Curvature for Orthogonal Face-Gear Drives

正交面齿轮传动中齿面曲率研究

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In addition, focus on the studies of the discrete mesh surface curvature calculation and feature extraction.

此外还研究了离散网格曲面的曲率计算和特征提取。

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The anterior corneal surface curvature of elder group was higher than that of younger group.

老年组角膜前表面曲率高于青年组；

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