1)composition diversity菌种组成多样性
英文短句/例句
1.Composition Diversity of the Multifunctional Bacterium Community NSC-7多功能细菌复合系NSC-7的菌种组成多样性
2.Genetic Diversity and Composition of Bacterial Community in Water of Poyang Lake鄱阳湖水体细菌群落组成及遗传多样性
3.Effect of fertilization on bacterial community,genetic diversity of amoA and nosZ genes in paddy soil化肥对稻田土壤细菌多样性及硝化、反硝化功能菌组成的影响
4.Open fermentation in wine production; 4. multiplicity of microbe groups; 5.微生物菌群多样性：有多种霉菌、细菌、酵母等。
5.Study on Plant Species Diversity Compositions of Park Green Space in Wuhan;武汉市公园绿地植物物种多样性组成研究
6.Species Composition and Diversity of Zooplankton in Lianyungang Inshore连云港近海域浮游动物种类组成及其多样性
7.Species composition and diversity of zooplankton in Oujiang River estuary in summer and autumn.瓯江口夏、秋季浮游动物种类组成及其多样性
8.Composition and Diversity of Acaroid Mites Community in the Storage Depots in Huaibei Area淮北市仓储环境中粉螨种群组成及多样性分析
9.Fish species composition and diversity of Yangtze River estuarine wetlands长江河口湿地鱼类的种类组成及多样性分析
10.Analysis of Constitution Features and Species Diversity Index of Indicator Algae in Chicheng Lake赤城湖指示藻类的组成及物种多样性指数分析
11.Microarray Analysis of Microflora Diversity in Dental Plaque Biofilms from Caries-susceptible Children before and after Dental Caries微阵列分析龋易感儿童患龋前后牙菌斑生物膜微生物组成多样性
12.The quality or state of being heterogeneous.多种多样含有多种成分的性质或状态
13.Diversity of Endophytic Fungi from Three Aquatic Plants and Their Antagonistic Activities in vitro三种水生植物内生真菌多样性及其抗真菌活性
14.Study on Species Composition、Community Structure and Species Diversity of Secondary Vegetation in Dagou;大沟流域植物群落物种组成、群落结构及物种多样性的研究
15.Plant Species Diversity and Component in Different Geo-Chemical Surroundings in Karst Area;不同碳酸盐岩地球化学背景下的植物物种多样性和物种组成研究
16.Effects of the Different Transformation and Regeneration Models on Species Composition and Plant Diversity of Cypress Forests不同改造和更新模式对柏木林群落物种组成和物种多样性的影响
17.Studies on Species Diversity of Lachnum and Its Pigment;粒毛盘菌属物种多样性及其色素研究
18.The Research on the Diversity of the Endophytic Bacteria in Three Medicinal Plants三种药用植物内生细菌的多样性研究
相关短句/例句
bacterial species diversity细菌种类多样性
3)The flora and species diversity of tree layer乔木层组成和物种多样性
4)population diversity种群多样性
1.Genetic algorithm based on instructing by population diversity;基于种群多样性指导的遗传算法
2.To overcome premature searching by standard particle swarm optimization(PSO)algorithm for the great loss of population diversity,a novel adaptive PSO is proposed,which can dynamically change inertia weight coefficients by the measure of population diversity.针对标准粒子群算法在进化过程中种群多样性降低而早熟的问题,提出了一种根据种群多样性测度动态改变惯性权重系数的自适应粒子群算法,该算法能够平衡算法的全局探索和局部开发能力,不仅有效地避免早熟,而且具有较快的收敛速度。
3.Focusing on the problems existed in some adaptive genetic algorithms that cannot take acc ount of population features and are difficult to converge to optimal solution s tead ily, the reasons of stopping evolution or degeneration are analyzed in view of f itness average and population diversity.针对现有自适应遗传算法无法兼顾群体特性 ,难以稳定地收敛到最优解的问题 ,从种群多样性和适应度均值变化的角度 ,分析了进化停滞或退化的原因 。
5)Diversity[英][da?'v?:s?ti][美][da?'v?s?t?]物种多样性
1.A study on composition structure and species diversity in ecotones between forest and swamp;森林-沼泽交错群落组成结构与物种多样性的研究
2.A review on the elevational patterns of plant species diversity;植物物种多样性的垂直分布格局
3.Research on brid diversity in the Weihe Plain, Shaanxi;陕西渭河平原地区鸟类物种多样性研究
6)diversity of population种群多样性
1.Based on the variance of fitness value, an index that can reflect the diversity of population in genetic algorithm is defined.根据适应度的方差,定义了一种度量种群多样性的指标。
2.A new index which can reflect the diversity of population in genetic algorithms, is defined in this paper and used to adjust the probabilities of crossover and mutation.提出了一种度量种群多样性的新指标 ,将其应用于交叉概率和变异概率两个参数的自适应调整 ,再将自适应的思想和并行计算的思想结合起来 ,提出了一种在个人计算机上实现的改进自适应遗传算法 -自适应伪并行遗传算法(APPGA) 。
3.We designed a migration operator and crossover operator based on diversity of population functions,and made dynamic adjustments on crossover and mutation probabilities.为了改善遗传算法的收敛性能,提出了一种基于个体适应度的种群多样性度量函数,恰当地反映了遗传算法的进化阶段,预报了早熟收敛的趋势。
延伸阅读
多样性多样性：指人们彼此具有各种不同的特征。
