查询词典 theory of evolution

Finding the exact solution of nonlinear evolution equations is one of very important topic in soliton theory.

非线性发展方程的精确求解是孤立子理论中的一个重要研究课题。

This chapter analyzes the evolution of the urban external spatial structure from the angle of industry organization theory.

也就是说，从本质上讲，城市外部空间结构的形成是由微观的企业间的联系特征所决定的。

Using Lewis-Riesenfeld theory, we obtain exact solutions of the time-dependent system, then we recover both n -pulse method based on time-evolution operator of the system and STIRAP method in terms of instantaneous eigenstates with the help of time-dependent gauge transformation.

利用含时规范变换理论得到系统的精确解，我们用时间演化算符同时得到文献中分别采用π-位相法和STIRAP方法得到的结果，因而更具有普遍性。

This strategy follows the route from actual object modeling to model hypostatization. It adopts composite model of mathematical optimization and simulation. And the relevant theory and methods presented in this dissertation as well as the decision-making methods (e. g. fuzzy synthetic evolution) are put into use comprehensively.

它按照从实物模型化到模型实物化的求解路线，采用数学优化和仿真的复合模型，在人机合作的思想指导下，综合利用了本文提出的相关理论、方法以及模糊综合评判等方案评价手段。

Mathematical legacy 数学遗产 Descartes' theory provided the basis for the calculus of Newton and Leibniz, by applying infinitesimal calculus to the tangent line problem, thus permitting the evolution of that branch of modern mathematics.

通过对切线问题的极限计算，笛卡尔为牛顿和莱布尼茨的微积分奠定了基础，所以使得这一近代数学分支的发展成为可能。

Areas of its research include evolutionary theory, macroevolution, vertebrate evolution, phylogenetics, functional morphology of vertebrate skeletons and dentitions, and biomechanics of locomotion and mastication.

其研究领域包括进化原理、宏观进化、脊椎动物进化、系统发生学、脊椎动物骨骼和牙列的功能形态学、运动和咀嚼的生物力学等。

This progress promoted the research level of geologic evolution and regional metallogenetic theory in Altay area.

对阿尔泰地区地史演化、区域成矿作用研究有重大意义。

It uses the crossover of topological sort list to guarantee that each offspring is a feasible solution and the search space is a global one. In order to improve the convergence of GA, it uses greedy strategy to improve the fitness of one chromosome in the population in crossover operator, based on Lamarckian theory in the evolution.

HGA使用拓扑排序表的交叉来保证下代的合法性和搜索空间的全局性，为了提高HGA的收敛速度，根据拉马克进化理论，在交叉算子中使用贪婪策略来提高个体的适应值，模拟结果显示HGA的调度结果和算法的时间复杂性都是令人满意的。

Present theory holds that man's body is the product of organic evolution,a biological process of creating new forms that has been in operation for millions of years.

现代理论认为，人类的躯体是生物进化的产物，这种进化是一种已经延续了好几百万年的创造新品种的生物进程。

According to the nonlinear oscillation theory and the obtained equation, the nonlinear characteristics and evolution law of Kunming precipitation anomaly system were studied.

根据非线性振荡理论和昆明地区的非线性振荡方程研究了昆明地区降水距平率系统演变的非线性特征及其演变规律。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。