查询词典 adjoint determinant

These findings suggest that maternal folate status is an important determinant of infant birth weight.

这些研究发现，母体的叶酸水平是新生儿出生时体重的重要决定因素。

Net income performance is the main determinant of investment performance and the provision for impairment of assets, coupled with the current floating surplus Ping'an release to have bottomed out, universal insurance reserve smooth release window guidance has also been restrictions on the China Insurance Regulatory Commission, therefore, the performance of the company smoothing capacity greater weakening of the end for the loss of Ping'an almost certain.

净收入的性能是投资业绩的主要因素和资产减值准备，在当前流动性过剩，加上平安释放已经见底，万能保险储备金的顺利发行窗口指导已经在中国保险监督管理委员会也已限制因此，在平滑的能力更大程度的削弱年底平安损失几乎可以肯定公司的表现。

To make a comprehensive view of metapopulation researches, we folly analyze and summarize the present concepts, theories and models of metapopulation in this paper, which primarily includes the dynamical models and simulation approaches of single and competitive metapopulations. Based on the Levin's patch occupant model, the center framework of metapopulation researches, primary principles and mechanisms are discussed. First, Levins rule: the fraction of empty patch will remain constant with habitat destruction as long as metapopulation survives. This rule implies that empty patches have determinant effects on persistence and conservation. Second. Allee effect of metapopulation is incurred by establishing difficulties and dispersal costs, which is important to the studies of reserve area and the minimum available metapopulation size. Third, we analyze the rescue effect that immigrants can reduce the extinction risk of the presented local population. Rescue effect can leads to the improvement of metapopulation sustainability and the decrease of fraction of empty patches. Fourth, the coexistence mechanism of two competing metapopulation is discussed, which suggests that competition-colonization trade off may be prevalent in competing systems. Finally, extinction debt ob tamed from coexistence mechanism is given, which depicts the lost of species richness in the future for the current habitat destruction. After theoretical discussion, we present two popular simulated approaches in metapopulations: probability transition model and stochastic process model.

为了能总观集合种群进展的全局并开展进一步的工作，首先对集合种群的已有概念、理论和模型做了全面的分析和总结；其次对集合种群的发展和概念进行了探讨，以集合种群模型的中心框架：Levins的斑块占据模型为基础，展开对其它原理、效应和机制的探讨；主要包括了Levins原理，即当生境进到破坏时，空斑块比例在集合种群灭绝前保持不变，然后还分析了Allee效应（集合种群的Allee效应主要是由于建群困难和扩散损失造成的）；第三，分析了援救效应：迁人个体可以降低斑块中现有局域种群的灭绝风险，援救效应会增强集合种群的生存力，使空斑块比例下降第四，探讨了两竞争集合种群的共存机制，即竞争－侵占妥协，其共存机制为空间生境中物种共存提供了有力的理论解释。

Then gives judging the vector linear relevance by the value of determinant, the order of matrix, the solution to uneven sublinear system of equations, Cramer principle, linear substitution, the theory of matrix and so on in the linear space and Ou Shi space, produces 13 equivalences of the vector linearity relevant under the dissimilar condition, and elaborates the widespread application of the vector linearity relevant through concrete examples.

在线性空间、欧氏空间中给出了运用行列式的值、矩阵的秩、齐次线性方程组的解、Cramer法则、线性变换、矩阵理论等知识来判定向量的线性关系，及不同条件下向量线性相关性的十三个等价命题，并通过具体例题阐述向量线性相关性的广泛应用。

The influencing factors of longitudinal mechanical properties of tracheids: 11 Experiments and theoretical calculation has proved that MFA of S〓 layer is the determinant factor of longitudinal mechanical properties of trachedis with smaller angle corresponding to better mechanical properties.

管胞细胞壁纵向力学性能的影响因素： 11实验和理论计算均表明，S〓层微纤丝角是管胞纵向力学性能的决定性因素，微纤丝角越小，管胞的纵向弹性模量和强度越大。

The results indicated that presences of some tree species were negatively correlated with the occurrence of ECM fungal sporocarps and the characteristics in clonal growth of fungal taxa would not be the only determinant in spatial pattern of ECM fungi.

外生菌根真菌群落可以定义为在一定地理范围和时间尺度内不同外生菌根真菌种群的组合。

To set the coefficient determinant for zero to solve the characteristic equation of one-layered plate, and to calculate the dispersion equation of any layered plates with recursive matrix method.

层状板当上下表面为自由边界面时板中将会产生板波，文中通过求解行列式和采用传递矩阵法分别得到了单层板和任意层板的特征方程，研究了单层板和双层板中板波的频散特性和板中位移和应力的分布，讨论了板波的动力响应，对测点的布置有一定的指导意义。

Here we show that differential RNA export between normal and tumor cells is the major determinant of ONYX-015 oncolytic selectivity.

这里我们说明了正常细胞和肿瘤细胞RNA导出的差异是决定ONYX-015溶癌选择性的重要因素。

Interference with presynaptic vesicle fusion by exposure to tetanus toxin reverted functional to silent transmission, implicating SNARE-mediated fusion as a determinant of the ratio of NMDA:AMPA receptor activation.

以破伤风毒素干扰前突触链胞分泌，影响了无讯号传导，并显示以SNARE造成的分泌，决定NMDA受体与AMPA受体的激发的比率。

These researches are dominant by self-presentational styles andclassifications,determinant of self-presentation and selfpresentational strategies and so on.

但已有研究主要集中于分析自我表现的类型、自我表现的影响因素、自我表现的策略等问题。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"