自相关系数

Proceeding from the correlation of local spatial zone,some theories and methods,such as location quotient,imbalance coefficient,spatial autocorrelation is applied to analyse the spatio-temporal character of the development of road passenger transportation.

从区域内部空间单元的相互关系出发，应用区位商、非平衡性系数、空间自相关等理论和方法分析道路客运发展的时空特征，建立一套区域道路客运发展时空结构分析体系，主要包括非平衡性体系、相关性分析体系、分析方法及衡量指标。

We set a relatively long integral time in the calculation of heat current autocorrelation function, and got convergent results.

计算了较长时间的热流自相关函数，并得到了导热系数的收敛结果。

In the second,third and forth section, we use Vector AutoRegression model, Granger Test of Causality and Pearson simple correlation to process the data set.

第二步，我们利用经济计量学中的向量自回归模型、格兰杰因果关系检验模型和pearson相关系数法对数据进行分析处理。

Coefficient distribution of the APIDCSF is similar to that of circular quincunx Neville filter and its interpolating performance outperforms the Neville filters with high orders vanishing moments.The aim of bidimensional interpolating is to diminish the error between the true value and the estimated one.

二维内插的质量是以预测值与真值之间的误差来衡量的，按照最小均方误差的准则，利用二维自相关函数模型和环形内插滤波器的系数分布特点构造了最小均方误差意义上的环形最优内插器，实验证明了全相位离散反余弦内插器近似于最优内插器。

Which indicates the regression equation 6 is plagued by auto correlation and we can not trust on the estimated t ratios, and coefficient of determination.

这表明回归方程6所困扰自相关，我们不能信任比率估计吨，并决定系数。

When seismic wavelet is in non-minimum phase , we can make it have smaller phase by doing exponential weighting . As for nonwhite noise problem of reflection coefficient , we may employ logarithmic power spectrum to estimate the autocorrelation function of seismic wavelet , then obtain seismic wavelet and deconvolution opera .

当地震子波为非最小相位时，可利用指数加权方法使之小相位化；对于反射系数非白噪声问题，本文提出利用对数功率谱来估算地震子波的自相关函数进而求取地震子波以及反褶积算子的方法；对于理想的期望子波，本文采用"宽带雷克子波"作为期望输出子波。

First,its characteristic of Gamma distribution can follow the bit rate of a VBR video source better.

该模型的Gamma分布特性能较好地描述VBR业务比特流的分布，由自相关函数决定的模型系数更充分地描述了自相关函数的行为，利用三态马尔科夫链的两个补充过程可以较理想地描述场景切换下的视频业务模型。

ABSTRACT: Random amplified polymorphic DNA was used in analysing the relationship among twenty-six speices of Amanita from Mangshan, Hunan. Of 40 primers, 6 ones generated reproducible RAPD profiles, and each one produced 1-10 bands. Two primers (OPG15 and OPH04) could differentiate 26 species of Amanita by its RAPD profiles. The similarity coefficients obtained from profiles generated by six primers among Amanita were about 20-60%. A dendrogram was constructed using average linkage clustering for clustering analysis. It indicated that there were two groups in 26 species and some species with ring and membranous volva clustered a group which coincided with morphological classification.

本文对采自湖南莽山的26种鹅膏菌属真菌进行了随机扩增多态性DNA分析，40个随机引物中筛选出扩增效果较好的6个引物，每个引物能产生1～10条DNA条带，获得的RAPD谱带清晰并呈现多态性OPG15、OPH04两个引物扩增的RAPD谱带能将26种鹅膏菌完全区分开来，通过6个引物的RAPD分析获得的平均相似性系数表明种与种之间的相关系数在20―60%之间，平均链锁聚类分析可将26种鹅膏菌分为二大类，且一些具菌环和苞状菌托的种类聚在一起，与形态分类基本相吻合。

The correlation between pilling grade assessed by Bp network and that by skilled person is 0.97, and the evaluation correctness is 92%.

Bp网络评定结果与主观评定结果的相关系数是0.97，等级评定的正确率是92％；自组织神经网络的评定结果与主观评定结果的相关系数是0.95，等级评定的正确率是84％。

Themultiple correlated coefficient of mathematical model was 0.951,which showed that the experimental designmethod is feasible in study self-thinning of forest.

尝试将二次正交旋转组合设计方法应用于杉木林自疏规律研究，建立重要环境因子与密度变化间的统计模型，并进行统计分析，表明采用试验设计方法研究森林自疏是适用的，其复相关系数为0.951。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。