查询词典 attractivity

The question to be asked is: what factors other than clinical statistics contribute to the attractivity of a system of medical ideas and therapeutic practices.

传统中医，特别是针灸，在西方得以流行，就是得益于这种对科学技术造福人类、不断进步的观点表示怀疑，对现代科技对环境的破坏表示忧虑的危机感。

By using comparison principle, the sufficient conditions of this model with global attractivity of infection-free periodic solution and system permanence were obtained.

研究一类具有阶段结构和脉冲免疫的SIR模型，利用比较原理得到此模型无病周期解全局吸引和系统持久的充分条件，并利用数值模拟验证结论。

In chapter 2, we introduce a generalized harvesting model, which is belong to piecewise continuous argument delay equations, we present sufficient condition to ensure the global attractivity of unique positive equilibrium and explore the possibility of emerging complex behavior-chaos.

研究了其正平衡解的全局吸引性，和可能出现的复杂动力学行为－－混沌；利用概周期序列的概念研究了分段连续时滞的微分方程的概周期解的存在性。

The persistence, existence, stability and global attractivity of periodic solutions of Lotka-Volterra systems are an important direction of mathematical ecology research. It has been an important topic to give a definite criterion of the properties of a complicated ecological system. Many ecologist and mathematician have paid much attention in this field.

生态系统的持久性、周期解的存在性及稳定性、全局吸引性等问题是数学生态学理论中的一个重要研究内容，对上述问题给出明确的判定准则是数学生态学的一个重要课题，历来受到生态学家与数学家的广泛重视。

By using the iteration method,M-matris theory and monotonous theory,the sufficient conditions are obtained for global attractivity and boundedness and persistence of positive solutions of this difference system.

利用迭代理论、M—矩阵理论、单调理论，分析该系统的持久存在性和吸引性，得到了该差分系统一致持久存在和其正解全局吸引的充分条件。

For general nonautonomous case, by means of the lower and upper averages of a function, under the conditions that the restriction on coefficients of the systems is relaxed further, some new results on the logistic equation are obtained, and sufficient conditions are given for permanence and global attractivity of the systems.

对于一般非自治情形，借助于函数的上、下平均值，在进一步放宽了对系数限制的情况下，我们得到logistic方程的一些新结果，给出了系统持久和全局吸引的充分条件。

The existence of positive periodic solution is obtained by the help of Mawhin continuation coincidence degree theory and the global attractivity of positive periodic solution is presented by Lyapunove method.

推广和改进了已有的相应的非脉冲微分方程的结论；利用Lyapunov泛函，得到了该系统正周期解是全局渐近稳定的，从而得到了周期解的存在唯一性，通过数值模拟来验证了所得到的结果。

By constructing a suitable Lyapunov equation,we present a set of sufficient conditions which ensure the global attractivity of the system.The conditions roughly show that the density-dependent a_i(i=1,2,3) of X_i(i=1,2,3) are relatively large,then the system is globally attractive.

然后通过构造适当的Lyapunov函数得到系统全局吸引的充分性条件，条件大致说明种群X_i(i=1，2，3)的密度制约系数a_i(i=1，2，3)较大时，系统是全局吸引的。

By applying the comparative theorem and constructing a suitable Lyapunov functional, some sufficient conditions are obtained for guaranteeing that the system is permanent and global attractivity.

利用比较定理结合构造Lyapunov泛函的方法，得到了保证系统永久持续生存及任意正解全局吸引的充分条件。

By using the comparison theorem of differential equation, we study the permanance of the system; After that, by constructing sutiable Lyapunov functional, we obtain some sufficient condition which guarantee the global attractivity of the system.

利用微分方程比较原理得到保证系统持续生存的条件；通过构造适当的Lyapunov泛函得到保证系统正解全局吸引的充分性条件。

This is the inheritance of the tribe of the children of Issachar according to their families, the cities and their villages.

19：23 这些城并属城的村庄就是以萨迦支派按着宗族所得的地业。

I've have enough of your garbage.

我听了你的废话。