Explain in detail T. R. Malthus' theory of population and the various checks to population growth.
详细说明马尔萨斯的人口理论和控制人口增长的各种措施。
The explanation and demonstration have been included in the mathematic models with the theory of population genetics.
用群体遗传学的理论对所建数学模型进行了解释和论证。
Therefore, it is instructive to have research on theory of Population Quality and how to reduce differences between East and West.
因此,研究人口素质理论、研究缩小东西部人口素质差异的对策是非常具有现实意义的。
The theory of population ecology is introduced into project portfolio risk management, after the researches on project portfolio management are briefly reviewed.
在回顾了项目组合管理研究之后,将种群生态学理论引入项目组合风险管理。
If the samples are statistically representative, that should, so goes the theory, give a credible picture of what the entire population would think, were it as well-informed.
如果样本人群具有统计学上的代表性,那么根据理论这种方式将会表达人群的真实想法。
That means, in theory, 15 percent of the American population is predisposed to live to be 100.
这在理论上意味着15%的美国人有活到100岁的倾向。
Objective: To present the methodology of graph theory principle coordinates analysis and explore its applicability for studying human population genetic structure.
目的:提出基因频率矩阵的图论主坐标分析方法,探讨该法在人类群体遗传结构研究中的应用。
According to his theory, evolution is the result of the population and not the single individual.
按照的他的理论,进化是群体的结果而不是个体的选择。
This paper, by using the central link formula and gray system theory, analyses and probes into the population growth and food production of Heze District.
本文利用人—地关系的中环公式和灰色系统理论,对菏泽地区的人口增长和粮食生产进行了分析和探讨。
The forming of a united theory need an agreement on basic concepts such as human being and human population at the level of philosophy.
对有关理论问题取得统一的认识需要在哲学层次上对诸如人和人口等基本问题达成共识。
Using method of qualitative theory of ordinary differential equation, studies economic harvesting model with variable price and cost for a single population.
利用常微分方程定性理论的方法讨论了价格成本变化的单种群经济捕获模型。
I never believed the population theory of Malthus.
我从来不相信马尔萨斯的人口理论。
This paper presents the methodology of graph theory multidimensional scaling analysis, and explores its applicability for studying human population genetic structure.
提出基因频率矩阵的图论多维尺度分析方法,探讨该法在人类群体遗传结构研究中的应用。
A novel particle swarm optimization based on theory of molecular motion (MMT-PSO) was proposed, and the population was regarded as molecule system.
提出了一种新颖的基于分子动理论的粒子群优化算法(MMT - P SO)。
This paper applies the theory of grey system to the population size forecast of the Striped hamster, which is one of the dominant rodent species of North China Plain.
首次将灰色系统理论应用于华北平原旱作区黑线仓鼠种群数量的预测预报中。
It discusses and analyses the theory of floating population crime at home and broad, and puts forward his own opinion from the view of sociology of crime and physiologic of crime.
比较剖析了国内外关于流动人口犯罪的各种理论,并从犯罪心理学和犯罪社会学角度提出了自己对流动人口犯罪原因的看法。
This paper reviewed the new progress in the theory and hypothesis of population regulation in small mammals, focusing on the food hypothesis, predation hypothesis and multi-factorial hypothesis.
对小型哺乳动物种群数量周期性波动的外因调节假说进行介绍,概述了食物假说、捕食假说和复合因子假说的主要内容和研究进展。
The Polarization and Population difference of the three-level atom, driven bya microwave field and interacted by a strong short laser pulse, is studied by me-ans of semiclassical theory in the paper.
本文采用半经典理论方法研究了在短脉冲作用下,被共振微波场驱动的三能级原子极化强度振幅和粒子数差随时间的变化。
This passage introduces of population pressure - the greatest feature of modern malthusian theory, of economics of population.
本文介绍了现代马尔萨斯主义人口经济理论的最大特点—人口压力。
Based on the theory analysis of the economic increasing effect of urban scale agglomeration, the paper gives a research on Chinese urbanization and the existing system of city's population scale.
文章在对城市规模聚集的经济增长效应进行理论分析基础上,对我国城市化进程和城市人口规模体系现状进行了研究。
Summary measure of the level and distribution of population health has vital implication to both the theory and policy practice.
健康水平和健康分布的综合测量具有重要的理论和政策意义。
Population genetic theory and method were used to study the conservation results of Qinchuan cattle for 30 years plus in Qinchuan cattle farm of Shaanxi province.
采用群体遗传学理论与方法研究了陕西省秦川牛场秦川牛保种群30多年来的保种情况,详细地分析了保种群的规模、年龄结构及迁移情况。
From the point of view of Maslow's hierarchy of needs theory, the "Figure of Transient Population Management" is established, and improved countermeasures are put forward.
本文从马斯洛需求层次理论的角度展开分析,建立“流动人口管理图”,提出改善对策。
A evolving learning model of data mode based on artificial immune theory and algorithm is proposed. A method for making certain the quantity of antibody population or detectors in reason is presented.
提出了一种基于人工免疫的数据模式进化学习模型及其相应的算法,给出了抗体(检测器)群体合理数量的确定方法。
A evolving learning model of data mode based on artificial immune theory and algorithm is proposed. A method for making certain the quantity of antibody population or detectors in reason is presented.
提出了一种基于人工免疫的数据模式进化学习模型及其相应的算法,给出了抗体(检测器)群体合理数量的确定方法。
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