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In the second part of Chapter 5,the supremum of real parts of characteristic roots for a nonsingular neutral degenerate retarded functional differential equation is studied.

第五章的第一部分讨论了非奇异中立型时滞方程的指数稳定性,所得的指数稳定的判定定理不同于文中的定理2。

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。

When the cooling rates are 1.0 × 10^14 K/s and 1.0 × 10^13 K/s, the amorphous structures are formed mainly with the 1551 and 1541 bondtypes or polyhedron basic cluster ( 13 1 10 2) and icosahedron cluster ( 12 0 12 0) in the system.

采用双体分布函数g曲线、Honeycutt-Andersen键型指数法和原子团类型指数法对凝固过程中微观结构的变化进行了分析。

Based on the relationship between matrix and symmetric matrix global exponential stability of the discrete-time neural networks model and the result of exponential convergence rate were obtained by using the characteristics of eigenvalues of a positive definite matrix and introducing a proper factor.

针对带有边界约束的凸二次规划问题,利用离散神经网络模型的建模原理,构造了一个神经网络模型。利用矩阵与对称矩阵的关系和正定矩阵特征值的性质,通过引入一个适当的因子,得到了该离散型神经网络模型是全局指数稳定性和指数收敛率的结果。同时分析了该结果的优越性和存在的不足,提出了解决的3种方法,最后给出了实例说明本方法取得结果的实用性

Methods It was measured that the blood flow of them with Acuson 128 computer imaging. Spectrum in 209 old people with velocity of systole and diasole phase, resistance and pulsate index.

方法采用美国Acuson-128型电脑影像仪测量209例老年人眼动脉和视网膜中央动脉的收缩期、舒张末期血流速度、阻力指数和搏动指数。

By constructing different quotient spaces,using the method of symplectic geometry,the self-adjoint extensions of symmetric differential operators in the direct sum spaces for the different deficiency indices at(2,2)singular points was discussed. The classification and description of complete Lagrangian submanifold that correspond with self-adjoint domains of second order differential operators were given.

由于对称微分算子在端点处的亏指数取值情况不同,当微分算子在端点处的亏指数均取(2, 2)时,通过构造商空间,应用辛几何的方法讨论了直和空间的对称微分算子的自共轭扩张问题,并给出了与二阶微分算子自共轭域相对应的完全Lagrangian子流型的分类与描述。

Methods CHD patients were proved by coronary arteriongraphy. 64 patients with type 2 diabetes in combination with CHD were enrolled in group A and 98 patients with simple CHD served as group B. Patients of group A were subdivided into 3 groups based on scalar of the stenotic coronary artery, viz 1 rarnus, 2 rami and 3 rami affection groups, and urinary albumin level was determined. In group A, age, course of DM, BMI, BP, BS, GHbA1c, blood-fat, UAL serving as iv, and affection sum and stenosis index serving as dv, ran polynary gradual regressive analysis.

随机选取经冠状动脉造影确诊的冠心病患者,其中2型糖尿病合并冠心病患者64例为A组,单纯冠心病患者98例为B组,比较两组患者的临床资料和冠状动脉病变情况。A组患者根据冠脉病变支数分为3个亚组,即l支、2支、3支病变组,比较亚组间的尿白蛋白水平;A组患者以年龄、体质量指数、糖尿病病程、血压、血糖、糖化血红蛋白、血脂、尿白蛋白为自变量,分别以病变数、冠脉狭窄指数为因变量进行多元逐步回归分析。

Many starchy foods have a glycemic index similar to table sugar. 7 People eating large amounts of foods with high glycemic indexes have been reported to be at increased risk of type 2 diabetes.

许多淀粉类食物血糖生成指数有一个类似的糖。7人的饮食与高血糖指数食物已大量报导,在2型糖尿病的风险增加。

Using the surface observation data and NCEP reanalysis data, spring thermal depressions in the southwest of China are classified into a local type and north-intruding type. Then the position and strength indexes are defined, the space-time distribution and numeral characteristic are analyze and their formation rules and mechanisms are studied for improving the accuracy of weather forecast. The results indicate that the thermal depressions are mostly regional and stationary.

利用地面常规观测资料和NCEP再分析资料,把我国西南地区春季出现的热低压分为本地生成型热低压和北方移入型热低压两种类型,定义了热低压的位置指数和强度指数,并以此讨论两种类型热低压的时空分布特征,对西南热低压进行定量描述以及研究其形成规律和机理,以提高天气预报的准确率。

Using RAPD markers techonolgy analysed the genetic structure of populations and built up the reaction system of SSR markers of Aristida pennata, at the same time, analysed the genetic structure based on SSR markers techonolgy. The research results are as follow:(1) 11 amplifiction random primers were used to detecte 125 loci in 76 samples. The total proportion of polymorphic loci of. Aristida pennata is 96.8%, the average proportion of polymorphic loci of Aristida pennata is 45.3%. The analyses of Shannon diversity index (1,0.5151) and Nei gene diversity index(h, 0.3471) indicate that the gene variation is rich in subpopulations.

Pennata.tirn为研究对象,在阜康,147团及121团周边等7个亚种群采集76个样品,通过RAPD分子标记技术进行亚种群内和种群间的遗传变异分析,并采用SSR技术建立羽毛三芒草的检测技术平台同时进行遗传结构分析,结果表明:(1) 11条RAPD引物检测到76个样品有125个位点,总多态位点百分比为96.8%;亚种群内平均多态位点比为45.3%,香农表型多样性指数(1,0.5151),Nei's基因多样度指数(h,0.3471)都说明羽毛三芒草种群有较为丰富的遗传变异。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。