变圆

By using of complex variable function and integral equation method, the antiplane multiple holes and cracks problem of half plane region is considered in this paper.

运用复变函数及积分方程方法，求解了半平面域多圆孔多裂纹反平面问题。

Antiplane responses of a scalene triangular hill or structure, an isosceles triangular hill or structure, an isosceles triangular hill with a subsurface cavity to incident SH waves are studied in this paper based on methods of wave function expanding, complex function, moving coordinates and by employing idea of assistant function.

本文在"分区"和辅助函数思想的指导下，综合利用了波函数展开、复变函数、移动坐标三种方法，研究了等腰三角形凸起地形和坝体结构、非等腰三角形凸起地形和坝体结构、浅埋圆孔附近等腰三角形凸起地形等三类问题对SH波的散射。

In this paper, a complex mapping function is devised to transform the contour surface of an arc crack to a unit circle on the auxiliary plane.

本文之研究方法乃是首先设计一复变函数，将原有弧形裂纹之几何形状映像至辅助平面成为一单位圆，然后再以此映像函数代入相关之边界方程式中。

In this paper, a complex mapping function is devised to transform the contour surface of an arc crack to a unit circle on the auxiliary plane. By substituting the mapping function into it governing boundary equation, the complex stress functions can be obtained as

本文之研究方法乃是首先设计一复变函数，将原有弧形裂纹之几何形状映像至辅助平面成为一单位圆，然后再以此映像函数代入相关之边界方程式中。

As long as the root of the characteristic equation is within the unit circle of z-plane and the corresponding PID parameter is got, the closed loop control system is sure to be stable. Although the root of the characteristic equation can vary within the unit circle of z-plane,different value may affect the control property differently.

本文所采用的这种确定PID参数的方法，虽然可以使特征方程的根在z平面的单位圆内任意取值，但各种取值情况对变风量空调系统的控制品质的影响却不同，因此，要对各种特征方程的根的取值情况进行寻优，本文采用遗传算法对特征方程的根进行寻优，从而使控制器的参数得以优化。

Under this flow, the convex initial curve will preserve its perimeter, enlarge the enclosed area and make its curvature to be positive definitely. And as the time lasts, it will become more and more circular, and finally, as the time goes to infinity, the curve will converge to a circle in the Hausdorff metric.

本文证明在这种新的曲线流之下，闭凸曲线周长保持不变、所围区域的面积不断增大而曲率保持恒正，并且，随着时间的推移曲线变得越来越圆，最终当时间t趋向于无穷大时，曲线在Hausdorff度量意义下收敛到一个圆周。

RESULTS: After adding with Salvia yunnanensis C.H.Wright, the density of cells depressed and the spindle-shape cell were discovered becoming retractation and abnormity.

结果：实验组加入滇丹参后，细胞生长密度降低，梭状突起回缩，细胞双极变得圆顿，细胞形态变得不规则。

When ethanol goes into the red blood cells, osmotic pressure changing causes the cell vertices moving to the center, and double-concave disc surface will be the spherical one. It results in the red blood cell volume larger and surface area smaller, causes the ratio of the surface area and volume significantly decrease, and the resistance tensile capacity of red blood cells reduced.

分析认为乙醇进入红细胞后，由于渗透压的变化将使细胞顶点向中心移动，双凹形的圆盘曲面将向球形细胞转变，导致红细胞体积变大和表面积的减少，引起红细胞表面积和容积的比值显著变小，红细胞的抗张能力降低。

They knew that every 29 days it become full-bellied and brilliant,then sickened and died,and then was reborn.

他们知道每隔29天，月亮就会变得又圆又亮，尔后就变得微弱最后消失了，过后，它又会重现。

As the increasing of helix angle, the film thickness becomes more uniform.

结果表明，与水平光滑圆管相比，水平螺旋槽管表面的液膜变薄且分布变均匀。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了