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In certain parameter regions above spatiotemporal systemshave both spiral wave state and some homogeneous states.Feedback pinnings aresuggested to migrate the system from the spiral wave to various wanted patterns.Theinfluences of pinning density,forcing strength,and different pinning distributions onthe driving effect are investigated.

在这一章，我们用局域钉扎反馈技术，控制不同介质中的螺旋波，结果发现成功控制螺旋波，不仅依赖于钉扎的密度和控制强度，而且还特别依赖于控制点的分布，因此优化设计钉扎的分布可以大大提高控制效率和得到丰富的斑图。

Then the absorbed pump power density, 2D distributions of temperature and index of refraction are also analyzed and discussed.

数值计算的结果表明二维效应的温度分布和应力分布要比一维效应给出的分布更均匀。

Besides, the data of n observed at perigees are used to roughly estimate the altitudes of the turbopause Zt and their variations according the two distinct vertical distributions of atmospheric composition in low and upper atmospheres: the homogeneous mixing and the diffusive separation.

采用近地点上的n观测资料，根据大气数密度在低层内均匀混合和高层内扩散分离的不同垂直分布特征，粗略地估算出湍流层顶的高度Zt及其变化。

The distributions of norbornene centered pentads were simulated with terminal and penultimate effect models.

用不同的多链节效应模型对共聚物的序列分布进行了拟合。

In view of their potential applications as electronic materials, the electronic structures of a series of PAMs are also investigated. The LUMO-HOMO gaps and the HOMO spatial distributions of the planar PAMs show obvious odd-even difference behavior.

电子结构分析表明，平面构型大环分子的LUMO-HOMO能隙和分子轨道空间分布具有明显的奇偶差异特性。

Likewise, only some of the packagers of GNU/Linux distributions are vendors.

同样，只有的GNU / Linux的一些发行版本是供应商。

The distributions of the axial pressure in the tube under different injection parameters were measured. The experimental data of the different structure of the slots were also analyzed.

测量了不同射流参数下管内的轴向压力分布，并且对不同结构的射流槽的试验结果进行了比较。

This article summarizes the diabetes patient's three big nutritions rational distributions as well as three big nutrients and the diabetes relations.

本文简述糖尿病病人的三大营养的合理分配以及三大营养素与糖尿病的关系。

It is found that the histogram of the values of the significant waves from 20-min records of every month, quarter-year, and one year also shows that the Weibull distribution is also the best one among all examined distributions.

因此本文进一步建立其它相关波高统计值与示性波高之关系，其关系一旦建立，即可藉示性波高以推得其它波高统计值，而本研究同时比较其理论与实际值之差异，以了解花莲海域之波高统计特性及以Weibull分布理论计算的可行性，此结果对於往后分析花莲港之波浪现象，与工程设计上可作为参考之依据。

Third, this study completely derives and proves the asymptotic characteristics and distributions of the quasi maximum likelihood estimators and testing the theoretical performance by Monte-Carlo simulation.

三、本研究基于拟极大似然方法对一类动态空间固定效应模型的参数进行估计，系统地推导和证明了参数估计量的渐近性质和渐近分布；并基于Monte-Carlo模拟实验对估计量渐近性质进行检验。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失