A numerical method is studied for an age-structured population model with space-limited recruitment.
对一类有限空间年龄结构种群模型提出了一种数值方法。
So it provides research basis on dynamics behavior by using the most famous population model in ecology.
这就为应用生态学最著名的种群模型来研究其动力学行为奠定了基础。
In terms of obesity rate, the U. S. population is not far off from the overweight population model in this study.
按照美国目前的人口肥胖率，研究中的超重人口模型并非遥不可及。
So build a model at random and, unless it's really simple (a one-prey-one-resource population model) it won't work.
所以，除非它确实是简单的(一个猎物一个资源种群模型)否则随机建立模型是行不通的。
Firstly, we propose and study the single-species discrete population model with stage structure and birth pulses.
在第二章，我们研究了密度依赖生育脉冲对单种群阶段结构离散模型的动力学行为的影响。
A neuron population model based on thalamocortical network was used to study the brain connectivity with certain mental tasks.
利用基于丘脑-皮层网络的神经元群模型，研究被试者在某种认知状态下脑功能区的连接状态。
We investigate the dynamic behaviors of a stage-structured pest population model with birth pulse and impulsive spraying pesticide at fixed time.
研究了一个具有阶段结构，脉冲生育及在固定时刻对其喷洒杀虫剂的害虫种群模型的动力学性质。
The results indicated that the distribution pattern of population individuals was random distribution pattern, and the population model was stable growth-oriented.
研究表明，种群个体分布格局为随机分布，种群模型属稳定增长型。
In this paper, the population model which the velocity of the preying rate of the predator population changes when quantities of the prey population increase is concerned.
本文研究一类随着食物量的增加捕食者捕食速度的变化率起变化的种群模型。
This paper deduces a theoretical population model in a urban system under a hypothetical condition of zero population growth (ZPG), and analyses the population dynamics for the model.
本文推演了城市系统中在人口零增长假设条件下的人口迁移理论模型；
By using the variation assimilation method and the optimal control method, theoretical analyses of the maximum population capacity and the inherent growth rate for the population model is presented.
研究人口的阻滞增长模型，采用资料变分同化方法及最优控制的技巧，从理论上对模型中的最大人口容量和固有增长率进行最优确。
We have nothing against small scale, low output, farming systems but to suppose this is a model which will feed the world's growing population is disingenuous.
我们绝不反对小规模，低产出的农业系统，但设想用这样一个模式来养活世界不断增长的人口未免不够现实和真诚。
In my experience, the only thing we've seen these growth patterns [in] before is in population growth studies - where there's some sort of resource constraint that results in this model.
以我的经验，我们以前所看到的增长模式，仅出现在人口增长研究中-其中，某些资源限制催生了该模式。
A technology company called Pegasus Global Holdings this week announced plans to build a 20-square-mile model of a small U. S. city that could host a population of 35,000.
一家名为飞马国际控股(Pegasus Global Holdings)的科技公司这周宣布，他们计划兴建一座20平方英里的小型美国城市模型，可容纳3万5千人口。
George Day (1980) describes model of segmentation as the top-down approach: You start with the total population and divide it into segments.
GeorgeDay(1980)将划分模型作为自上而下的方式：从整个人口出发，分成不同区间。
With only six percent of the population meeting the daily goal for vegetableseven those who don’t want to be a vegetarian could use this model to improvetheir health.
既然只有6％的人口达到每天的蔬菜需求目标，甚至那些不希望成为素食者的人可以利用这个模式以改善他们的健康。
He teamed up with Walter Scheidel, a Stanford classicist and historian, to create a model of population growth and decline based on coin-hoard data gathered over the years.
他与WalterScheidel合作，Walter Scheidel是斯坦福的一个古典学者与历史学家。他们发明了一个人口增长模型，这个模型基于钱币藏匿的数据，这一工作已进行多年。
The model is based on the interactions of a hypothetical population of buyers and sellers.
本模式基于买卖双方之间的相互作用之上。
These two groups account for roughly 45 percent of the population, depending on the model.
这两组人群大约占总人口的45%，这取决于统计学的模型。
The intrusion detection model based on the population artificial immune is composed of discrete elements among which are no direct interactions.
基于群体人工免疫的入侵检测模型主要由一些离散的元素组成，这些元素之间没有直接的交互。
Rather, the model that does fit indicates that there was a frequent flow of genes from wild European boars into the domestic population.
相反，相符合的模型显示有一股基因流频繁从欧洲野生猪进入到家养猪群当中。
Results the spatial semivariogram model revealed the spatial genetic structures of a human population.
结果实例表明，模型客观地反映了人类群体遗传空间结构异质性和空间自相关性。
We establish a linear birth and death process model of a population in polluted environment.
建立了生物种群在污染环境中的一个线性生灭过程模型。
Differential equation and probability limit theorem have been widely used in the mathematical model of biological population growth.
以往关于生物种群增长的数学模型多是用微分方程和概率极限定理的方法来推导的。
Objective To explore tuberculosis control model of migrant population in Guangzhou.
目的探索广州市外来人口结核病控制的有效模式。
By defining a population set, transfer function set and feedback function set, a multiple feedback model for population control is presented.
通过定义人口状态集、传递函数集和反馈函数集，得到了人口系统的多级反馈控制模型。
In this paper, regarding the influence of infectious diseases on the dynamics of host population growth, a PDE model is established for the dynamics of infectious diseases with lifelong immunity.
在本文中，考虑到传染病对宿主生物群体生长动力学的影响，对终身免疫型传染病的动力学建立了一个偏微分方程的模型。
In this paper, regarding the influence of infectious diseases on the dynamics of host population growth, a PDE model is established for the dynamics of infectious diseases with lifelong immunity.
在本文中，考虑到传染病对宿主生物群体生长动力学的影响，对终身免疫型传染病的动力学建立了一个偏微分方程的模型。
应用推荐