• Therefore, establishing the stochastic models between the population dynamics and economic growth has some theoretical significance.

    因此,建立人口动态与经济增长之间的随机模型具有重要的理论意义。

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  • Forest fragmentation has immeasurable effects on birds. The population dynamics, population genetics and local evolution of birds are to some extent affected by the changes of environment.

    森林生境片断化对生活在其中的鸟类产生着难以估量的影响,鸟类的种群动态、种群遗传和局部进化等都不同程度地受环境变化的影响。

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  • Temperature was the key factor affecting population dynamics of G.

    温度是影响菱角小萤叶甲种群数量消长的关键因子;

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  • Monitoring of population dynamics of main insects in strawberry nursery;

    烟粉虱、蓟马和蚜虫是草莓苗圃节肢动物群落的优势种群。

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  • The annual population dynamics of rodents generally is the key for forecast.

    鼠类种群年度动态是预测的关键。

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  • Dynamical systems examples from mathematical biology and population dynamics.

    来自生物数学和种群动力学的动力系统的例子。

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  • Research fields: Partial differential equations, Biological population dynamics.

    研究方向:偏微分方程、生物种群动力学。

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  • Surplus production models are among the main models for fish population dynamics.

    剩余产量模型是鱼类种群动力学的主要模型之一。

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  • By quantifying these causes the population dynamics of the insect would be better understood.

    通过对这些原因进行定量,可以更好地了解昆虫的种群动态。

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  • There are impulsive phenomena in all kinds of applied fields, especially in population dynamics.

    脉冲现象广泛存在于各种应用领域,特别是种群动力学中。

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  • In this paper we study the stability for equilibrium points of equations in two-population dynamics.

    本文研究两种群动力学方程平衡点的稳定性。

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  • Mainly work on fish population dynamics, including growth, mortality, recruitment and population dynamics.

    主要研究鱼类种群动力学,包括海洋鱼类的生长,死亡,补充,数量变动等。

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  • He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics.

    他利用蚜虫繁殖力资料说明了抗生作用对虫口动态的理论效应。

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  • In this paper the network models are used to construct the state-space equation for insect population dynamics.

    本文拟通过网络模型着重讨论适应于昆虫种群研究的状态空间方程的建立问题。

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  • The results indicated that system dynamics model had potential application for forecasting pest population dynamics.

    研究表明了系统动力学模型在害虫种群发育动态及预测方面有着良好的应用潜力。

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  • This paper, beginning with the general age-dependent population dynamics, discusses the well-pose of stationary solution.

    本文从最一般的人口动力系统出发,讨论其稳态解的适定性。

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  • The present paper is concerned with the optimal control problem for an improved nonlinear age-dependent population dynamics.

    研究某一类改进的关于年龄结构的非线性种群系统的最优控制问题。

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  • The temperature is an important factor affecting on the population dynamics of asparagus aphid Brachycorynella asparagi Mordvolki.

    温度是影响芦笋小管蚜种群的主要因素之一。

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  • The present paper dealt with the population dynamics of Myzus persicae(Sulzer)and its natural enemies using fuzzy grouping analysis.

    本文应用模糊聚类方法研究了烟蚜及其天敌的种群动态。

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  • In this paper, we have studied a SIS epidemiological model with a nonlinear incidence rate and population dynamics in susceptible class.

    本文研究了具有非线性接触率和易感类中具有种群动力学的SIS传染病模型的正不变集、平衡位置以及平衡位置的稳定性。

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  • In the second chapter, the problem of the optimal control for a class of non-linear population dynamics system with age-dependent is discussed.

    第二部分讨论了一类具有年龄分布的非线性种群系统的最优控制问题。

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  • It is widely applied in various domains such as biological technology, medicine dynamics, physics, economy, population dynamics and epidemiology.

    它被广泛应用于生物技术、药物动力学、物理、经济、种群动力学、流行病学等领域。

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  • Population size structure and population dynamics were elucidated with some statistical parameters, such as growth, survival and reproduction etc.

    并通过对其生长、残存和繁殖等统计学参数的描述,揭示了种群结构和种群动态。

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  • The reaction and population dynamics were studied between the resistant cultivar Yingxian small black soybean and Heterodera glycines race 3(SCN3).

    对抗病品种应县小黑豆与大豆胞囊线虫3号生理小种(SCN3)互作及田间动态关系进行了研究。

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  • Using computer simulating technique and cohort conception, the simulation model of armyworm population dynamics under variable temperatures was built.

    应用计算机模拟技术,引入同龄组的概念,建立了适合于估测变温条件下粘虫种群动态的计算机模拟模型。

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  • It has been proved that structure of food chain, immigration and emigration, environment noise can influence the pattern of complex population dynamics.

    研究表明食物链的结构、种群的迁入和迁出、环境噪音都会对种群的复杂性动态特征产生影响。

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  • On the other hand, identifying what regulates population dynamics and allows ecological interactions to persist has vexed ecologists for almost 100 years.

    另一方面,理解调控种群动态和生态学交互作用的过程和因素也是困扰生态学家长达百年的重要生态学问题。

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  • On the other hand, identifying what regulates population dynamics and allows ecological interactions to persist has vexed ecologists for almost 100 years.

    另一方面,理解调控种群动态和生态学交互作用的过程和因素也是困扰生态学家长达百年的重要生态学问题。

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