查询词典 mathematical analysis

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状；然后，将供应链系统作为一个复杂系统来分析，确定了系统运行过程中所经历的状态，通过引入补充变量的方法，建立了用偏微分方程组描述的分布参数系统模型，用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式，证明了系统解存在的唯一性、非负性和指数阶渐近稳定性；并借助Matlab工具，利用二阶、三阶辛普森积分方程模拟系统解的性态，并给出系统动态解的仿真图；本文又对上述系统增加了系统可能失效状态和优化调整状态，并在此基础上建立了用偏微分方程组描述的分布参数系统模型，同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究，得到系统动态解和稳态解的数学表达式，证明了系统动态解存在的唯一性、非负性及渐近稳定性，为进一步分析和研究供应链优化奠定了理论基础。

By combining mathematical analysis with numerical simulation, we have shown that the Allee effect may be a destabilizing force in predator-prey systems: the equilibrium point of the system could be changed from stable to unstable or otherwise, the system, even when it is stable, will take much longer time to reach the stable state.

由于捕食者或猎物Allee效应的存在，系统的平衡点要么由渐进稳定变为中性稳定或不稳定，要么系统需要更长的时间才能到达平衡状态。

We use the multilayers dielectric lens to achieve super-resolution of the tested targets. In the study of DORT, we will present the simulation results and mathematical analysis.

而在分解时间回转运算子中，关於如何由数学分析来得到侦测物体的资讯方面，也有分析与实际模拟，并且也提出了一种将超宽频讯号与分解时间回转运算子结合的分析方法。

Wavelet and fractal theories are great breakthroughs in the recent research on mathematical analysis and nonlinear science. Their emergences inject strong energy into the area of image and audio signal processing.

小波理论和分形理论是近年来数学分析和非线性科学研究的重大突破，它们的出现也为图像和音频信号处理注入了强大的动力。

While many rivals were picking hedge funds based on rounds of golf or recommendations from friends of friends, Mr Smith used his actuarial background to apply a mathematical analysis - securing him a job at GAM from the late Gilbert de Botton, who already knew the yachting and golfing hedge fund glitterati.

很多竞争对手都是通过打高尔夫球或朋友间的推荐来挑选对冲基金的，而史密斯则利用他保险精算的背景进行数学分析，这让他从资产管理公司GAM已故的创始人吉尔伯特·德·伯顿那里获得了一个职位。

A detailed mathematical analysis of fluctuation index of the plane wave and spherical wave in different altitudes, the wind velocity near the earth and the structure constant of atmosphere near the earth were analyzed in light of the ITU-R model.

研究结果表明，斜程传输在弱起伏情况下，利用修正Rytov方法得到的结果与经典Rytov方法结果基本上是一致的。

The gap element method is proposed in the paper for two kinds of problems, which include contact problem and gap joint problem. Elasticity contact problem falls into the category of unknown boundary value problems. It follows that the contact area and contact conditions or states can never be determined without special mathematical analysis, which is a very difficult work. The boundary conditions of the contact surfaces are deduced.

文中给出了间隙元法在空间可动部件接触问题中的应用，推导了其几何边界条件和力学边界条件，利用虚功原理推导了含间隙元弹性接触问题的有限元方程式，给出了其数值解法的迭代步骤，并指出了利用间隙单元进行分析的特点。

It is one of research hotspots on modern traditional Chinese medicine by the way of mathematical Analysis for pulse tracings.

脉诊在中医理论与临床诊断中都占有很重要的地位，运用数学分析法判别脉象是近代中医学研究的重要课题之一。

The multivariable model of the VAV system is established, which is the fundamental of the mathematical analysis of systems.

论文首先建立了变风量系统的多变量控制模型，奠定比较完整的数学分析基础。

This paper discusses how to teach students"the product of infinite infinitesimals isn t necessarily infinitesimal" in teaching "advanced mathematics" Or "Mathematical Analysis",and the author provides some new original examples which had not been seen in currently available textbook and riches the teaching content.

文章对&无穷多个无穷小的乘积不一定是无穷小&这一知识点在&高等数学&或&数学分析&的教学中如何讲授给学生进行了一些有益的探讨，并给出了一些在现有教科书及参考书中未曾见过的独创的新例子，从而丰富了教学内容。

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。