和指数

In Chapter 5, considering the uncertain returns of securities as fuzzy numbers which follow an exponential possibility distribution function, we give a semi-definite programming method to solve the non-linear problem in estimating the exponential possibility distribution function process. Furthermore, we extend the center spread model proposed by Tanaka and Guo to the case of a frictional financial market.

第五章将证券收益率看作是服从指数可能性分布的模糊数，提出了证券收益指数可能性分布估计过程中求解非线性问题的半正定规划方法，并且将Tanaka和Guo的中心差值可能性投资组合模型扩展到了带摩擦的金融市场的情况。

In this paper, a disease transmission model of SEIRS type with exponential demographic structure is studied. Two sufficient conditions are obtained to guarantee the local or global exponential stability of the disease free equilibrium by using a new technique based on the concept of comparison.

本文研究了一类具指数人口统计与结构的SEIRS传染病模型，利用一种新的基于比较原理的分析，获得了无病平衡点局部和全局指数稳定的两个充分条件。

It′s found that the GVD-caused chirp in the exponential type of DDF is least likely to be affected by the initial chirp,the GVD-caused chirp in exponential, linear,Logarithm and Guassian types of DDF has the synchronous character of saturation as the nonlinear-effect-caused chirp ,and the two kinds of chirp are found to counteract to balance, which makes the sum chirp tend to be zero.

发现指数型色散缓变光纤中初始啁啾对GVD所致啁啾的影响最小，在指数型、线型、对数型和高斯型色散缓变光纤中GVD所致啁啾具有同非线性效应所致啁啾相似的饱和性，二者相消，使净啁啾趋于零。

Analysis and experiment results show that computation quantity of this algorithm does not get too larger with exponentiation getting larger very fast,and may reduce when exponentiation well-selected.

算法分析和实验结果证明，该算法的计算量不会随着指数的快速增大而增大，通过精心选择指数，还可以减少运算量。

The results show that there are large range of variability and rich genetic resources of foxtail millet germplasm in Gansu. And the genetic diversity of germplasm resources in different regions is significantly different.

结果表明：(1)甘肃省谷子地方种质资源的多样性在地州间存在明显差异，多样性以陇中的兰州、白银、定西、临夏，陇东的庆阳、平凉和河西的武威为富集地，多样性指数范围在1.5312~1.3424；而金昌、陇南地区的多样性相对较低，多样性指数范围在

Ecological analysis of morphological and genetic variation revealed that:(1) The averages of morphological characters were significantly negatively correlated with WSF (2) Dominant frequencies of some RAPD loci were significantly correlated with WSF (3) The correlation between morphological variation and genetic variation was not significant (4) The cluster analysis based on morphological and genetic evidence supported that all population can be divided into three ecotypes: saltmarsh reed, freshwater reed and giant reed.

相关分析表明：种群内各形态特征的平均值均与水盐联合影响因子显著负相关，但种群内形态变异系数与水盐联合影响因子普遍相关不显著；种群遗传多样性指数与水盐联合影响因子相关不显著，但部分生境倾向型的RAPD位点的显性频率和来自等位酶分析的克隆多样性水平与水盐联合影响因子显著相关；形态变异系数与遗传多样性指数相关不显著，但相关系数均为正值。

The global convergence and the stability of the algorithm are established.

所 需要的先验知识仅为系统的能观性指数和能控性指数的上界以及干扰上界。

Finally, the author proves the sharp bound for the indices of convergence of n*n reducible Boolean matrices with f〓≥2 the writer lets f〓 be the greatest common divisor of the distinct lengths of the elementary cycles of the associated digraph D (A for a reducible Boolean matrix A , and characterizes the matrices with the largest index.

最后，设f〓为可约布尔矩阵A的伴随有向图D的所有圈长的最大公约数，当f〓≥2时，我们得到了可约布尔矩阵幂敛指数的一个上界和达到最大幂敛指数的矩阵的完全刻划。

Using the imbalance index of urbanization, taking 14 cities in Gansu Province as the basic unit, the differences between urbanization and social and economic indicators such as land area, population, cultivated land, grain yield, gross output of farming, gross output of industry and GDP and so on in 2004 were discussed. The trend of the imbalance index of urbanization responding to those indicators from 1995 to 2004 were analyzed.

本文利用城镇化不平衡指数，以甘肃省14个市州为基本单元，在时间断面上，探讨了2004年城镇化与土地面积、总人口、耕地面积、粮食产量、农业总产值、工业总产值和国内生产总值等社会经济指标之间的不平衡性；在时间序列上，分析了1995-2004年相对于这些指标的城镇化不平衡指数变动趋势。

The Catholic Church's 1758 Index of Prohibited Books omitted the general prohibition of works defending heliocentrism,[39] but retained the specific prohibitions of the original uncensored versions of De revolutionibus and Galileo's Dialogue Concerning the Two Chief World Systems .

天主教会的1758指数违禁图书省略了普遍禁止工程捍卫heliocentrism ， [ 39 ] ，但保留了具体禁止未经审查的原始版本者revolutionibus和伽利略的对话两个主要世界体系。这些禁令终于下降到了1835年指数

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。