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。
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。
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。
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。
RESULTS Model of nonlinear difference equation that describes the growth of population has been established.
结果建立了描述种群生长的非线性差分方程模型。
The study has been based on both the model for rice population growth and the model for simulating population life system of lice case worm.
本研究是在水稻群体生长模型和纵卷叶螟种群生命系统模拟模型的基础上进行的。
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。
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;
If migration and growth in future years will be similar to Population Zero (10,000 people in a new manufactured city at a time), how would you change your model for the next few migrations?
如果未来几年的移民和增长将类似于人口零(一次在一个新的制造城市10,000人),你将如何改变您的模型为下几次迁移?
From the endogenesis population migration model, we also implement the empirical analysis of interprovincial human capital migration on economic growth effect.
第三,以人口迁移为指标,基于内生人口迁移模型,对各省区省际人力资本迁移的增长效应进行了实证分析。
On the basis of geographical sense and mathematical sense, this paper used the model of allometric growth of urban population-area, and a model of rural and urban population-area was generated.
研究中,首先根据地理意义和数学意义,对经典的城市人口-面积异速生长模型进行扩展,推导出城乡人口-面积统一模型。
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。
The text establishes the nonparametric autoregressive forecast model on our country's population growth rates from 1949 to 2007.
并对我国1949年-2007年的年人口增长率进行了实证分析。
The population structure model of Mongol in Lai—jia—tun village, Ke—you— qian—qi county, Inner Mongolia was analysed, which was found growth model.
本文对内蒙古科右前旗草原农牧区赖家屯蒙古族进行了人口结构类型分析,结果属增长型;
The population structure model of Mongol in Lai—jia—tun village, Ke—you— qian—qi county, Inner Mongolia was analysed, which was found growth model.
本文对内蒙古科右前旗草原农牧区赖家屯蒙古族进行了人口结构类型分析,结果属增长型;
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