连续曲线

With continuous culture in laboratory, this paper studied the individual's growth and population dynamics of Paramecium caudatum under the stress of methamidophos, fen-propathrin and 2, 4-D buiylate, with the population growth curves analyzed by using Logistic model.

采用连续培养法探讨了草履虫在甲胺磷、2，4-D丁酯和甲氰菊酯3种农药胁迫条件下的个体生长和种群动态，并利用Logistic种群增长模型对种群的增长曲线进行了分析。

If the plane curve is given by ,where is continuous on ,then

如果曲线是由极坐标方程所给出的，其中在上连续，则

It is proven that for any freedom degrees, there is a C 2 quartic Bézier curve to interpolate the given data points.

讨论了C2 连续的四次B？zier曲线需满足的连续性方程。

The problem of constructing an adjustable C 2 quartic Bézier curve to interpolate a set of given data points is discussed.

讨论了构造可调整C2 连续的四次B？zier插值曲线问题。

In fact,this rational quartic spline is the successful generalization of quartic polynomial spline.

事实上，这种有理插值样条曲线是C~2连续的四次多项式样条的成功推广。

Firstly, the curvature continuity conditions between two adjacent rational quadratic curve segments are derived. Secondly, an optimal algorithm is presented for solving out the tangent lines at every points of a closed point set in a plane.

首先导出了两相邻二次曲线段间曲率连续的拼接条件，然后提出了求解平面上一个闭的点列中每一点处的切线的最优算法。

A new method for planar curves has been developed. Curvature signal is decomposed with wavelet at first, and then select interpolative dots by altering pace, which is used to construct a G2 continuous rational cubic Bezier spline curve.

给出了一种先对初始曲率进行小波分解，再用变步长的方法选取待插值点，最后利用C^2连续的三次有理Bezier样条插值重建出光顺的平面曲线的方法。

Based on the condition that the hoisting rope be regarded as the continuous flexible rod, by synthetical analyses which take the ride comfort of hoisting cage and the little dynamic oscillation of hoisting rope as the aim, the rational acceleration curve of driving system,the best acceleration function is brought out in this paper, and all these can provide conferential reference for...

基于钢绳为连续弹性杆的条件下，通过提升容器满足乘坐舒适性和提升钢丝绳系产生较小震动为目标的综合分析，提出了矿井提升机械驱动系统的合理加速度曲线，即提升机常用激励加速度函数的首选形式，为矿井提升机的进一步研究和设计提供参考依据。图 7，参 14

In this process, a window scans the image with a line and row of reiterative pixels, which can make sure the connection of the edge and the detection of the details in the partial image.

其中，采用图像窗口迭进滚动方式扫描，确保了边缘曲线的连续与局部细节的检测。

The retortion influence of base isolating building and base fixed building under horizontal earthquake effect is discussed, and the difference between them under the same condition is compared.

本文介绍了减震结构的动力特性，并计算了结构在地震作用下各层的位移、速度、加速度和剪力等地震反应；分析了结构在同时受到两个水平方向地震作用时结构的地震反应，从与抗震结构的对比中可见其优越性；选用了不同场地上的地震波模拟了各类场地上的地震作用，分析比较了不同的场地对建筑物减震效果的差异；分析了橡胶垫水平刚度的变化对动力分析结果所造成的影响，提出了在橡胶垫恢复力曲线中，按线性模型进行简化计算的条件；讨论了隔震垫的设置位置，比较了隔震垫设置在首层柱的底部和设置在其它位置的区别；分析了减震结构在连续经历多次地震时（即在地震后、较大余震作用下）是否仍然能够减震的问题；并对水平地震作用下，减震结构和抗震结构的受扭情况进行了讨论，比较了同等条件下两种结构的区别。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。