查询词典 reducible equation

This paper research on the effect of investment with reserve for insurance price by theory of backward stochastic differential equation.

本文利用倒向随机微分方程的理论，在考虑保险公司提计准备金的背景下研究投资对于保险价格的影响，建立了再保险投资定价的正倒向微分随机方程的模型，并给出了保险价格的显性解。

In order to study the numerical method to solve the viscous incompressible flow with free surface, the 3-D mathematical model for steady and unsteady hydrodynamic problem had been established and closed by k-εbuoyant turbulence model. The algebraic coordinate transformation method was used to fit the free surface, the Runge-Kutta method of three step and second precision was devised to simulate the time step. A high precision up-winding compact scheme was studied for the convection term, and the generalized conjugate residual method was set to solve the Poisson equation.

为了研究粘性不可压缩三维问题的数值求解方法，本文从基本的Navier-Stokes方程出发，采用代数拟合方法处理自由表面，用三级二阶Runge-Kutta方法对时间步进过程进行了模拟，并且对对流项的高精度迎风格式进行了研究，给出了求解压力Poisson方程的广义共轭剩余法，从而建立了能够模拟有自由表面的粘性不可压缩问题的定常、非定常三维水动力学模型，并采用k—ε浮湍流模型对其进行封闭。

The divergence term, the horizontal advection term and the residual term of the volticity equation play an important role in the sustention of the landfalling tropical cyclone.

STC登陆后正涡度减弱较快。(2)热带气旋登陆后涡度的收支主要取决于水平散度项、平流项和剩余项。

However, the calculation of the zero order correction of the DNLS/MNLS equation is intricate. We develope a symbolic computation technique to calculate them, based on the residue theorem.

但DNLS／MNLS孤子在微扰下的零级近似已经非常复杂，我们基于留数定理总结出一套有广泛适用范围的符号计算方法。

Understand and utilize resister, capacitor and conductor elements to derive the governing equation of electrical systems.

介绍如何利用电阻、电容与电感来求得电路系统的统制方程式。

Using the resolvent equation technique, we not only construct a new iterative algorithm b...

第一章的结果扩展了这个领域已有的研究内容。

In Chapter 7, we prove the resolvent operator of compound KDV equation is computable via the operator method, contraction mapping principle and TTE theory.

第五章应用Backlund变换得到了变系数组合KdV-Burgers方程的N-类孤子解；第六章应用F展开法及其扩展形式得到了变系数组合KdV方程和(n+1)维Sine-Gordon方程的孤立波解；第七章运用算子方法、压缩映象原理和TTE理论，证明了组合KdV方程的解算子是可计算的；最后对全文进行了总结，并对未来的研究方向作了展望。

Existence results are shown for a class of beam equation under the resonance condition.

在共振条件下，对一类梁方程解的存在性给出证

In addition,it is found that the width of the corresponding waveguide of the rectangular cavity has an essential effect on the number of solutions for the resonance condition equation.

结果表明，随着横向尺寸的减小亚波长谐振条件的物理解数量将逐渐增多直至趋于无穷。

Based on the analysis of mechanism and spread characteristics of the vibration wave produced by small diameter abnormal hammer tamping,and with the example of the engineering of dynamic compaction on a rubble fill site,the velocity-distance equation is built and the minimum safety distance is defined during small diameter abnormal hammer tamping with the maximum resultant velocity as the evaluation index.

在分析小直径异型锤强夯产生振动波的机理和传播特点的基础上，结合强夯处理块碎石土工程实例，以最大合速度作为强夯振动对环境影响的评价指标，得到了速度随距离增大的衰减公式和用小直径异型锤强夯具体能级下的最小安全距离，并验证了隔振沟有效性。

"Bird Man's Diary, Butting on the Love Island", Changsha, China

2008年"鸟人日记，顶在爱情岛"，中国长沙

As long as they were in the service of a family of wizards, their magic would remain dormant.

只要他们一天为家庭服务，他们的法力就潜藏不动。