查询词典 evolution equation

Considering the premature convergence problem in the conventional differential evolution algorithm,a density clustering based niching Differential Evolution algorithm is proposed in this paper.

针对基本差分进化算法早熟收敛的缺陷，提出了一种基于密度聚类的小生境差分进化算法。

This article is expected to probe into and analyze piano preludes with emphasis on the historic evolution of piano preludes and give examples of compositions in order to come up with a more direct and clearer understanding of its composing techniques and theories as well as its evolution.

本文旨在通过对钢琴前奏曲这一体裁的检视与分析，着重探究了体裁的历史发展脉络，在对比性相关研究上举証了譜例，使之具有了更加直观和鲜明的认识，从而深化对其创作技术理论和演变的体会。

The results of dynamic simulation as well as filling and evolution analysis show that the filling and evolution processes of Huangxian fault basin were controlled by two rifting stages.

通过动力学模拟及充填演化分析，认为黄县盆地的充填演化过程受两期裂陷作用的控制。

Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.

针对近地天线加载优化设计问题，结合多种改进GA策略，提出了策略型拟子，给出天线加载设计的共同进化算法，对有耗半空间对称偶极子天线加载优化设计作了仿真实验，验证了共同进化算法对多变量多峰连续搜索问题上的有效性。

The result shows that two atoms entanglement evolution property is opposed to atom-field entanglement evolution property when the coherent amplitude factor was zero or small. The interaction of the atoms and the field weaken the entanglement degree of atom-atom.

结果表明：当相干态振幅参量为零或很小时，两原子间纠缠度随时间演化规律和场-原子纠缠度随时间演化规律几乎相反，场-原子间的纠缠削弱了两原子间的纠缠。

The article firstly analyses the carrier superiority of western countries, and thinks that this kind of superiority is decided by the superiority of the theory study, technology superiority and economic superiority. The article looks back the formation and developing of peaceful evolution strategy, defines the emphasis western countries put on ideology, and expresses the truth that western countries infiltrate in ideology and deeply discusses the new means of western peaceful evolution after our country took part in WTO.

文章首先分析了西方国家的载体优势，认为这种优势是由其理论研究的优势、技术优势、经济优势三者所共同决定的，文章回顾了和平演变战略的产生与发展过程，明确西方国家高度重视意识形态斗争，揭露了西方国家利用传媒和网络进行思想渗透的真相，并深入探讨了我国加入WTO后西方和平演变的新方式。

The evolution tendency of its magma suggests that the Wudalianchi rift belt is still in a course of continuing evolution without a sign of coming to an end.

进一步从岩浆演化的趋势认为五大连池裂谷带将持续演化而不会夭折。

Numerical simulations by assemblies of circular panicles can qualitatively reflect the general characteristics of liquefaction behavior of sand. The interval effect of aspect ratio of elliptical panicle on the mechanical behavior of numerical sample is obtained, and the reason is related to the initial average co-ordination number. The regularity of evolution of fabric in the process of sand liquefaction under cyclic loading can be qualitatively achieved by using the numerical sample randomly mixed of panicles with different shapes. Numerical simulations can not only demonstrate the macro phenomenon of particle breakage, mostly importantly, it can also expose the evolution of particle breakage microscopically, and would contribute to further research of the micromechanics of particle breakage.

研究结果表明：Hertz-Mindlin非线性接触模型适用于变围压条件下砂土力学性质模拟；纯圆颗粒模拟能够定性地反映饱和砂土振动液化的一般规律；颗粒长短比变化对砂土力学性质的影响具有区间效应，其原因与粒间初始平均接触数有关；不同形状随机混合试样能够从定性规律上反映振动液化过程中砂土的细观组构演化规律；数值模拟不仅可得到颗粒破碎宏观响应，而且可以分析内部接触力变化和实现对粘结破裂位置的追踪，从而可进一步研究颗粒破碎细观力学机制。

With the help of latest developed bioinformatics tools, all available Influenza H5A1 strains were explored to deeply under stand their evolution tendency. Methods All H5A1 sequence in NCBI genbank and influenza sequence database were downloaded and aligned, then fast maximizing likelihood method was applied to construct phylogenetic tree, and SRDT model was used to estimate evolution rate and ancestral date for tree branches.

下载NCBI Genbank和美国洛斯阿莫斯国家实验室流感病毒数据库中全部的甲型流感病毒H5A1序列，采用快速极大似然法绘制进化树，并用SRDT模型估计各分枝的进化速度与出现时间。

The features of deep-reaching faults controlling the regional structures in the northeastern area of China were analyzed. Further more, the evolution laws and magmatism of all structural geological units, and their controlling effects on the formation and evolution of basins were discussed.

摘要对东北地区区域构：查进行了研究，分析了对该区有控制作用的各个深而大的断裂的特征，进而研究了各构造地质单元的演化规律、岩浆作用及其对盆地形成、演化的控制作用。

He has to relate with three women in the movie, and yet remain implicitly faithful to the unseen Lucinda.

让克劳德布里亚里成功地饰演试验了一个难度很大的角色：和三个女人打交道，但还要底下对观众未曾谋面的卢馨达保持忠诚。

The experiment was conducted to study effects of inulin on the growth performance, indices of immune organs and serum immunoglobulin of laying chicklings as well as the performance of inulin which replaced the antibiotics in diets by adding 0.2%, 0.4% and 0.8% of inulin, respectively.

试验旨在通过在蛋用雏鸡日粮中添加0.2%、0.4%和0.8%的菊粉，研究菊粉对蛋雏鸡生长性能、免疫器官指数和血清免疫球蛋白的影响，以及菊粉替代抗生素对蛋雏鸡的应用效果。