Meanwhile, to solve optimal reduction quickly, GEP-ARRS implements dynamic population creation strategy to reduce gene length of GEP constantly in order to accelerate solution efficiency of GEP.
为了更快地求解出最优约简,GEP - ARRS算法利用动态种群生成策略,不断缩小GEP基因长度,加快GEP算法的求解速度。
Observation of the dynamic population changes in Trichoderma spp. and the pathogen of the disease showed that Trichoderma spp. had some inhibitory effect on the pathogen of the disease in the soil.
并测定无菌土中木霉与病原菌的种群动态变化,结果表明木霉在土壤中对病原菌有一定的抑制作用。
Using a dynamic economic model with a life_cycle hypothesis, this paper examines the effect of population change on economy.
本文用一个带生命周期假说的经济动态模型全面考察了人口变动对经济的影响。
With a population of a little over one million people, it is both dynamic and relaxed.
圣迭哥的人口数量略高于一百万。它既是一个生机勃勃的城市,又是您放松身心的场所。
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。
Total arable land dynamic balance equation stipulates the control subject for the regional arable land system un-der the base of predictable technology and population pressure.
在可预知的技术进步和人口压力背景下,耕地总量动态平衡方程为区域耕地系统的状态规定了调控目标;
The population dynamic and composition of predatory enemiesThe results indicated 28 species of predators belonging to 7 orders, 15 families, were found in coton fields.
棉田捕食性天敌组成及种群动态经过系统调查,初步得出该垦区捕食性天敌隶属于7目15科28种。
This paper analyses the dynamic relation between population change and urban man-made landforms of Dalian City.
文章以大连市为例,研究人口变化与城市人工地貌间的动态关系。
There are dynamic and closely relative relations between family changes and child-bearing behavior of the population.
家庭变迁与人口生育行为的变化呈动态关系和密切的相关关系。
The dynamic combination of GA and ACO in the strategy is realized by the difference of population similarity in different iterations.
该策略通过不同迭代次数中种群相似度的差值实现两种算法的动态融合。
The time of dynamic nitrogen adjustment were determined by regular patterns or by the comprehensive evaluation of soil mineral nitrogen concentration and rice population status.
氮素动态调控时期由高产栽培常用的追肥时期或根据水稻群体状况与土壤矿质态氮浓度综合判断确定,追氮量由模型计算获得。
With a case study of Jinshan District, the article has analyzed the approach, economy effect, dynamic mechanism and thinking on the control of the population agglomeration in Shanghai Outer Suburbs.
本文立足于上海远郊区并以金山为例,分析了远郊区人口集聚的途径、经济影响、动力机制以及调控思路。
The paper discusses the dynamic characteristic of population supporting capacity of land from three aspects; the threshold area per capita, the absolute supporting capacity and the relat.
文章分别从人均耕地阈值、绝对承载力与相对承载容量三个不同角度来探讨分析了山西省土地资源人口承载力的动态变化特征。
The classical fish population dynamic models were largely on the basis of stable population behavior assumption.
经典的鱼类种群动态模型是以稳定的种群行为为基础的。
This is only natural, for population was everywhere one of the most dramatic and dynamic economic variables and fluctuations in population were at least in part a function of harvest variations.
这个很自然,因为人口是最富有戏剧性的动态经济变量,人口的波动至少部分上是结果变量的一个函数。
The means of dynamic genetic operators and population control were used to make the evolution escape from localization trap quickly.
采用动态遗传算子设计和群体规模控制方法,使进化更快速跳出局部最优。
The population dynamic of Tsuga tchekiangensis in Wuyishan Nature Reserve was studied and its age structure, the life table, survival curve, mortality rate and killing power curve were analyzed.
对武夷山自然保护区南方铁杉种群动态进行了系统研究,绘制该种群的年龄结构,编制静态生命表,分析存活曲线、死亡率曲线和损失度曲线。
The method of dynamic comparable tree classification was introduced to study the population structure of natural Japanese red pine forest in Northeast China.
本文采用动态可比性林木分级法,研究了东北东部天然赤松林的种群结构。
Both static and dynamic comparative studies reveal that production polarization in China is not high and population polarization is too low.
动、静态比较分析发现,我国生产的极化作用不高,人口的极化作用过低。
The optimal control problem of linear population dynamic system with age-structure in periodic environment was investigated.
在周期环境下,研究一类具有年龄结构种群线性动力系统的最优控制问题。
Reproduction and mortality are two primary factors to affect population quantity dynamic.
种群的数量季节消长主要是繁殖和死亡两因素相互作用的结果。
The convergence property and dynamic characteristics of the newly proposed population migration algorithm for solving global function optimization problems are analyzed by means of probability.
用概率论分析了新提出的求解函数全局优化问题的人口迁移算法的收敛性及动态特性。
The results indicates: 1) In contrast to population size, the change of consumption patterns caused by growth of income level has a more direct effect on the dynamic change of marine fisheries;
实证研究表明:①由收入水平提高所引起的消费方式转换比人口规模更直接地影响海洋渔业资源的动态变化;
The basic ecological data of the leopard, such as the distribution, population and it's dynamic, behavior, prey, is least known for lacking of a long-term study.
由于长期缺乏有效的科学调查,目前对其分布、种群及动态、行为、猎物现状等基础信息不清。
Objective The study aimed to learn the population quantity and dynamic of Populus pruinosa in Tarim basin.
目的了解塔里木盆地灰叶胡杨种群的数量及动态。
Objective The study aimed to learn the population quantity and dynamic of Populus pruinosa in Tarim basin.
目的了解塔里木盆地灰叶胡杨种群的数量及动态。
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