查询词典 mathematical analysis

The design ideas of the economy analysis program for a ship with high block coefficient and some mathematical models such as that for estimating the light weight of a ship and the shipbuilding cost, for the type depth as well as for predicting the ship speed are given.

文中简述了大方形系数船型经济论证程序的设计思想，给出了数学模型，并作了大方形系数船型与G型2万吨级散货船、秦申线3.5万吨级浅吃水运煤船的经济性对比及敏感性分析。

Based on the analysis of physics course of heat transfer, the mathematical model of single-phase flow in the rectangular narrow channel is proposed. And the boundary conditions are given to get the unique numerical result. The finite volume method is used to found the discrete scheme of equations. According to the flow of SIMPLER arithmetic, the computing program is developed and the correctness of program is validated.Then the program is used to solve the problem of flow and heat transfer in rectangular narrow channel.The stable two dimension velocity and temperature fields in rectangular narrow channel and plate fuel are obtained.

在明确窄缝流道及燃料板换热物理过程的基础上，建立了描述矩形窄缝内单相流动与换热问题的数学模型，并给出了合理的边值条件；然后利用有限容积法对方程进行离散，根据SIMPLER算法的流程编制了模型求解程序；在验证程序正确性的基础上，对矩形窄缝流动与换热问题进行了求解，得到了矩形窄缝流道和板状燃料元件内部温度场、速度场的二维分布。

Taking Yanhe as an example, the distinct transition point of flood season runoff time series by the impacts of human activities has been detected by way of mathematical statistics analysis. And meanwhile, based on the datum before distinct transition point, the forecast model is set up only with the data series before the distinct transition point. The difference between the value derived from the equation and the observed value is right the influence on flood season runoff induced by human activities.

以延河流域为例，采用数理统计方法推估获取人类活动影响下汛期径流时序的显著转折点，以显著转折点前的数据建立预测模型，对比分析汛期径流量的实测值与预测值，其差值即为人类活动对汛期径流的影响程度。

On the basis of setting up mathematical model on blowing energy of 50KJ hydraulic die forging hammer, through simulation analysis, the relation curve of the blowing route and the blowing energy have been attained under the certainly filled atmospheric pressure and the height of loaded die, and the calculation result of simulation has been validated by experiment.

新闻摘要：在建立了50kJ液压模锻锤打击能量的数学模型的基础上，经过仿真分析，得出了在一定充气压力及装模高度下的打击行程与打击能量的关系曲线，并对仿真计算结果进行了实验验证。

Its most major and most complicated problems are the analysis of drill point mathematical models and drill grinding theory, which is the foundation of drill grinder design.

而各种先进钻型数学模型的建立及刃磨理论的研究是钻头自动化刃磨技术的研究的重点和难点，它是钻头刃磨机设计的理论基础。

By the elastic mechanics mathematical method and finite element analysis, the effect of cement sheath elastic modulus on casing external collapse load was researched on the conditions of uniform and non-uniform in-situ stress.

利用弹性力学解析及有限元方法，分别研究了均匀地应力和非均匀地应力条件下水泥环弹性模量对套管外挤载荷的影响规律。

Assessable mathematical model of safety evacuation in subway station was proposed with combined principle of fuzzy mathematics and fuzzy hierarchy analysis process.

根据地铁站的火灾特点和安全疏散的影响因素建立了评估因素集，结合模糊数学原理和模糊层次分析法，建立了地铁站安全疏散评估数学模型。

Then afterwords, a detailed discussion was made on the five stages of life cycle analysis of green products and on its related mathematical method.

然后详细讨论绿色产品寿命周期分析的五个阶段及其有关的数学方法，最后以低密度聚乙烯为例进行了LCA方法的应用分析。

How does research make about academic economics the application of mathematical thinking obtains the classiest issue, must pass already some research practice activities go inspecting an analysis.

有关理论经济学研究如何使数学思维的应用达到最优等问题，则必须通过已有的研究实践活动去考察分析。

Surface temperature control of paper machine driers used to produce 6μ capacitor paper is discussed in this paper. Mathematical model of the controlled plant is obtained by means of dynamic measurement and theoretical analysis.

对于生产高级电容器纸的烘缸表面温度的最佳分布和最优控制的问题，本文用机理分析和动态测试相结合的方法求得了数学模型；设计了前馈-反馈最优控制系统。

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。