查询词典 persistence

He reviewed the slow growth of of astronomy and the persistence of bizarre astrologic notions, governing even the setting of dates for summit conference of world leaders.

他回顾了天文学的缓慢成长过程，考察了异乎寻常的占星学的观念，这门古老的学问至今持续不衰，甚至支配着世界元首顶级会晤日期的选定。

Hitting the right balance between these two types of leadership takes political astuteness and frequently persistence .

要在这两种领导方式间取得适度平衡，得靠政治敏感度及百折不挠的精神。

We gain conditions for persistence for three-species of the system and global asymptotic stability for positive periodic solution of the system.

研究了一类具有扩散系数和 Holling 类功能反应的一捕两食三种群非自治捕食系统，得到了系统持久生存和周期系统存在唯一全局渐近稳定的周期解的条件。

It achieves the necessary asynchronism and persistence by combining storage with the physical movement of information.

通过把存储与信息的物理移动结合起来，它获得了必要的异步性和一致性。

We prove uniform persistence and global attractability bythe comparable theory and constructing Lyapunov function method.

本文第三章中，提出了既具有反馈控制项，又有扩散项和α_i类功能性反应函数的n种群非自治Lotka-Volterra竞争生态系统。

In this paper,the asymptotic property for two kinds of ecological systems and oscillation for solutions of a neutral differential equations is studied by employing differential inequalities and using eigenvalue analysis,iterative algorithm,induction and comparison theorem etc.Here, the system\'s asymptotic property includes the uniform persistence,the global attractability of the solutions,the asmptotic stability of the solutions and the oscillation of solutions.

本文利用微分不等式、特征根分析法、迭代法、归纳法及比较原理等方法和理论，研究了两类生态模型解的渐近性和一类脉冲中立型微分方程解的振动性，其中包括模型的一致持久生存性，正平衡态的全局吸引性、局部与全局渐近稳定性以及解的振动性。

The asymptoticbehavior of two ecological systems and the unconditionally stability and oscillations in kinds of 4-order delay difference equations are investigated by using analysis method, constructing Lyapunovfunctions, the logarithmic norm, charateristic roots theory and the bifurcation theory. Here, theasymptotic properity includes the uniform persistence, the global attractability of the solutions,the asymptotic stability of the positive solution local or global and the oscillations of solutions.

本文利用定性分析的方法、比较原理、特征值分析法、对数范数、构造Lyapunov函数及分支理论等方法和理论，研究了两类生态模型解的渐近性及一类四阶时滞微分方程解的无条件稳定性，其中包含模型的一致持久生存性、正平衡态的全局吸引性、局部和全局渐近性以及解的振动性等问题。

Autoimmunity to CD4 T-cells may account for the persistence of the CD4 T-cell lymphopenia in such cases.

CD4细胞的自身免疫可导致持续性的淋巴细胞减少症。

Ideally, I would like to take care of saving the persistence data "automagically".

理想情况下，我想借此挽救数据的持久性"自动将照顾"。

Praise and rewards should be based upon children's effort and persistence, rather than on the actual accomplishment.

赞扬和奖励应该建立在孩子付出的努力和坚持上，而不是他最后的结果。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。