复合曲线

Auto-focusing algorithm based on cross correlation ;2. By means of signal processing techniques such as the power spectrum function, the auto correlation function and cross correlation function, two kinds of ECG signals when AF does or does not happen were successively analyzed, showing the evident differences between them.

提出了一种简便有效的、由心电图曲线提取QRS -T复合波的新方法，从而获得P波或f波；利用功率谱、自相关、互相关等信号处理技术，对它进行了处理和分析，特别是，比较了未房颤时和发生房颤时的相关信息的显著差别。

One decalescence peaks appears in the DSC curve of PVC and the melting point is about 86.0℃. There are two decalescence peak of the composite of wheat straw-PVC, and its melting point is not clear.

聚氯乙烯树脂在DSC曲线中，出现一个吸热峰，熔点约为86.0℃；而麦秸与聚氯乙烯树脂复合后的人造板的吸热峰有两个，熔点明显不同。

The result showed that two decalescence peak appears in the DSC curve from the composite of wheat straw-EVA. There is a difference of melting point between the composite of wheat straw-EVA and EVA.

结果表明：麦秸与乙烯－醋酸乙烯树脂复合后的人造板DSC曲线中出现了两个吸热峰，其熔点与乙烯－醋酸乙烯树脂的熔点有差别。

There is a difference of one between the composite of wheat straw-PE and PE. The former melting point is 131.5℃ and the latter is 132.9℃, if the apex of decalescence peak is the melting point.

麦秸与聚乙烯树脂复合后的人造板在DSC曲线中出现的熔点与聚乙烯树脂的熔点有所差别。

Otherwise, wide pulse and slow falling edge can cause the errors of surface recombination velocities and bulk lifetime extracted from the photoconductive decay curve.

否则脉冲光过长的脉宽和下降沿将对光电导衰减曲线中进一步分离出的表面复合速度和少子体寿命结果造成误差。

The variance of stress about particular points that situate on the edge where maximum stress point locates as the object function, we introduce complex method to optimize the position of exterior load point about pylon along the voyage direction and the angle between anti-swing stop and right-and-left symmetry plane about pylon under the determinate loads. We also compare the unoptimizable stress curves with the optimized to validate the feasibility and correctness of the optimization method.

将挂架上最大内应力点所在棱边的特征点的内应力方差作为目标函数，采用复合形方法对一定载荷状态下，挂架外载荷点沿航向的位置及防摆止动器与挂架左、右对称面间的夹角进行了优化设计，并将优化前、后的内应力曲线进行比较，验证了优化方法的可行性、正确性。

The problems are investigated by using polynomial interpolation and symbolic computation, and the proposed method is applied for curve and surface cases.

基于多项式插值和符号计算的思想，研究了Bernstein多项式函数复合问题，并将其应用于曲线曲面的情形。

By carrying out ~1H spin-diffusion experiments,the domain sizes of DNA in the complexes were determined.The domain size of DNA is found to decrease greatly when the N/P ratio changes from 0.5 to 3 and changes only slightly with further increase of the N/P ratio.After making a thorough analysis and discussion on drug control release and gene delivery systems with general NMR techniques,we presents a method of 1D PFG NMR technique to realize quick observation on the Mw change of polymer during its degradation process.Moreover,according to the inverse Laplace transformation theory and based on a function of diffusivity distribution of polymer in solution,2D PFG NMR technique is developed to measure the Mw distribution of polymer.Combined with Monte Carlo simulation,the degradation mechanism can be figured out.

从发展新的核磁共振方法，拓展核磁技术应用范围的角度来看，本文首次提出了采用一维脉冲梯度场技术快速测量降解过程中聚合物的分子量变化的新方法；并首次将Monte Carlo模拟与PFG实验结果进行了关联分析，从而不仅可以实时观测体系分子量的变化，而且可以对体系的降解机理进行深入分析；首次将延伸型指数函数引入对自扩散曲线的拟合，并通过反拉普拉斯变换，建立了一种实时测量聚合物体系分子量分布的新方法；首次将固体核磁共振的研究方法，引入聚合物/DNA复合物体系的研究。

The curve length of the QRS complex is longer than that of other parts of the ECG in the same interval, so that the ECG curve length characteristic is suitable for QRS dctcction. Our algorithm not only detects the QRS complex position but also its duration.

该算法根据QRS复合波的曲线长度在一定的等时间间隔内大于ECG其他部分的特性进行QRS波的信息提取，其不但检测QRS波的位置，而且同时检测出QRS波的宽度。

Relation between longitudinal wave velocity and uniaxial tensile strength is quadratic curve after high temperature.

高温后纵波波速与抗拉强度关系复合2次曲线关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。