查询词典 partial correlation coefficient

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。

Aiming at the limitation of this algorithm,the universal cut-and-try algorithm is put forward.The complexities of macroscopic traffic volume and GDP time series are calculated,respectively.The results show:the complexity of GDP has a positive correlation with the complexity of freight traffic volume;the influence of the complexity of GDP on the complexity of macroscopic traffic volume is long-term with lagged effect;and the correlation between GDP and macroscopic traffic volume has an uncertain relation with the correlation between their complexities.

通过计算宏观交通量与GDP时间序列的复杂度，得到简单结论：GDP复杂度与货运交通量复杂度具有较强的正相关关系；GDP复杂度对宏观交通量复杂度的影响是长期的，具有滞后效应；GDP与宏观交通量现象的相关程度与二者复杂度的相关程度没有必然的联系。

It has the negative correlation with Cu、nicotine,has positive correlation with Zn、Cl and has negative correlation with deoxidize sugar/N.

因此深入研究土壤肥力与烟叶化学成分的关系，了解土壤肥力对烟叶化学成分的影响，能为改善植烟土壤环境、提高烟叶质量和合理施肥提供一定的科学依据。

Results After the therapy, the sTfR and erythron increased significantly, but bone marrow iron deposits decreased progressively as HCT increased. The sTfR had a apositive correlation with RBC (r=0.632, P.01) and positive correlation with Hct (r=0.757, P.01) and positive correlation with E%(r=0.775, P.01). No correlations were observed among sTfR and other parameters.

结果 患者治疗后sTfR显著增高(P.01)；而骨髓外铁、铁粒幼细胞、SF均显著降低；红系增生较治疗前明显活跃(P.01)。sTfR与RBC呈正相关(r=0.632， P.01)；与Hct呈正相关(r=0.757， P.01)；与骨髓E%呈正相关(r=0.775， P.01)；与其他参数无相关性。

This dissertation investigates the construction of pseudo-random sequences (pseudo-random numbers) from elliptic curves and mainly analyzes their cryptographic properties by using exponential sums over rational points along elliptic curves. The main results are as follows:(1) The uniform distribution of the elliptic curve linear congruential generator is discussed and the lower bound of its nonlinear complexity is given.(2) Two large families of binary sequences are constructed from elliptic curves. The well distribution measure and the correlation measure of order k of the resulting sequences are studied. The results indicate that they are "good" binary sequences which give a positive answer to a conjecture proposed by Goubin et al.(3) A kind of binary sequences from an elliptic curve and its twisted curves over a prime field F_p. The length of the sequences is 4p. The "1" and "0" occur almost the same times. The linear complexity is at least one-fourth the period.(4) The exponential sums over rational points along elliptic curves over ring Z_ are estimated and are used to estimate the well distribution measure and the correlation measure of order k of a family of binary sequences from elliptic curves over ring Z_.(5) The correlation of the elliptic curve power number generator is given. It is proved that the sequences produced by the elliptic curve quadratic generator are asymptotically uniformly distributed.(6) The uniform distribution of the elliptic curve subset sum generator is considered.(7) We apply the linear feedback shift register over elliptic curves to produce sequences with long periods. The distribution and the linear complexity of the resulting sequences are also considered.

本文研究利用椭圆曲线构造的伪随机序列，主要利用有限域上椭圆曲线有理点群的指数和估计讨论椭圆曲线序列的密码性质——分布、相关性、线性复杂度等，得到如下主要结果：(1)系统讨论椭圆曲线-线性同余序列的一致分布性质，即该类序列是渐近一致分布的，并给出了它的非线性复杂度下界；(2)讨论两类由椭圆曲线构造的二元序列的"良性"分布与高阶相关性(correlation of order κ)，这两类序列具有"优"的密码性质，也正面回答了Goubin等提出的公开问题；(3)利用椭圆曲线及其挠曲线构造一类二元序列，其周期为4p(其中椭圆曲线定义在有限域F_p上)，0-1分布基本平衡，线性复杂度至少为周期的四分之一；(4)讨论了剩余类环Z_上的椭圆曲线的有理点的分布估计，并用于分析一类由剩余类环Z_上椭圆曲线构造的二元序列的伪随机性；(5)讨论椭圆曲线-幂生成器序列的相关性及椭圆曲线-二次生成器序列的一致分布；(6)讨论椭圆曲线-子集和序列的一致分布；(7)讨论椭圆曲线上的线性反馈移位寄存器序列的分布，线性复杂度等性质。

The results showed that the diameter and the volume of steamed bread had great positive correlation with the gluten content in wheat flour,that the ratio of diameter and height of steamed bread had great negative correlation with dough stability time ,and that the volume and height of steamed bread had good correlation with sedimentation value.

结果表明：小麦粉面筋含量与馒头的直径和体积高度相关；稳定时间与馒头的扩展比极显著负相关；沉降值与馒头的高度和体积相关性显著。

Positive correlation between Mg~# and P_2O_5 and negative correlation between P_2O_5 and FeO suggest that addition of P is not the key role for the separation of immiscible oxide melts. In contrast, negative correlation between Mg~# and Fe_2O_3/FeO ratios implies that the increasing of oxygen fugacity is very likely the main factor to induce immiscibility of oxide melt.

Mg#与P2O5的正相关以及P2O5与FeO含量的负相关，表明P不是导致氧化物熔体不混熔的主要原因；而Mg#与Fe2O3/FeO的负相关则说明，岩浆演化过程中氧逸度的升高可能是导致氧化物熔体不混熔的主要原因。

Results: The side-lying intrasession intraclass correlation coeffecient, intersession intraclass correlation coeffecient, and intertester intraclass correlation coeffecient were 0.83 cm (0.9), 0.42 cm (1.7), and 0.69 cm (1.4), respectively.

结果：侧卧位的组内相关系数、组间相关系数和测量者间相关系数相对地为 0.83 cm (0.9)， 0.42 cm (1.7)，和0.69 cm (1.4)。

The supine intrasession intraclass correlation coeffecient, intersession intraclass correlation coeffecient, and intertester intraclass correlation coeffecient were 0.91°(1.1°), 0.75°(1.8°), and 0.94°(1.8°), respectively.

仰卧位组内相关系数、组间相关系数和测量者间相关系数相对地为0.91°(1.1°)， 0.75°(1.8°)，和 0.94°(1.8°)。

In this technique, K-L transformation was used to remove spectral statistic correlation on the spectral direction. Then SNMAW prediction tree technique was used to remove spatial correlation and spectral structure correlation. With the limit of a certain max error, this technique can get a higher compression ratio. 6. We proposed a lossy compression technique based on wavelet transformation with sharing significance map.

该方法在谱维方向进行K-L变换，有效地去除谱间统计冗余，而变换后的图象仍存在空间相关性和谱间结构相关性，再利用改进的预测树方法方法进行无损压缩，在最大误差很小的限制下，得到较高的压缩效率。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。