数学分析

Based on conventional model of flood control benefit,several kinds of uncertainties,including hydrological,hydraulic,structural,managemental and operational uncertainty,are synthetically analyzed.

在传统防洪效益计算的数学模型基础上，综合分析了水文、水流、工程施工和运行管理等多种不确定性，建立了长江中游防洪系统防洪效益的风险分析模型。

By analyzing the urgency of the domestic enterprise logistics outsourcing,eight comprehensive indicators are selected according to affection model about logistics outsourcing and fuzzy comprehensive analysis is applied to mathematize the decision-making′s thinking process,thereby supporting the final decision on logistics outsourcing,and useing ultimately an example to test the method.

通过分析国内企业物流外包的迫切性，建立了物流外包牵动模型，选择8个综合性指标，采用模糊综合分析法，将物流模块外包的决策思维过程数学化，提高了企业物流外包决策的科学性，并应用实例进行了论证

As an illustrative example, the evaluation of midship section structure for 10000~40000 dwt bulk carriers in terms of seven performance indices and their satisfaction degrees is carried out.

显见，船舶结构评估是一类所谓结构非分析的问题，不可能建立其精确的数学模型而求解，因此，应用智能分析设计的原理和方法加以处置是适宜的。

This method transforms the problem of time-domain response analysis from differential equations with boundary conditions to ones with initial conditions describing the ABCD matrices of multiconductor transmission lines, which are much easier to solve from the mathematics point of view.

在第四章，通过引入传输线的ABCD矩阵，提出了多导体传输线时域响应分析的一种新方法，该方法将时域响应分析从边值问题的微分方程转化为数学上更易求解的初值问题的微分方程，对传输线各个传输模式进行了综合考虑，避免了来回跟踪反射波的复杂过程。

At the same time, artificial neural network was adopted to put forward a new thoughtfulness and effective method for evaluating mineral resources synthetically, which can break through restrictions of statistical models on synthetical assessment of mineral resources. Shooting at nodi and pivotal problems in GIS-based mineral resources assessment, the integration of assessing methods of mineral resources, GIS technology and artificial neural network were emphasized.

以计算机可视化技术便捷、直观的展现出矿产资源综合评价的全过程；利用GIS强大的数据管理和空间分析功能，有效的解决了多源、多类型、多属性地质数据的处理和分析问题；利用人工神经网络技术突破了统计数学模型对矿产资源综合评价及成矿预测的约束和限制，为矿产资源综合评价提供了一种新思路和有效的方法。

The working principle of the deployment control mechanism of appendages is investigated in detail, the feedback control model is established. And the effect of parameters to synchronized motion is discussed, in addition the nonsynchronous motion is investigated through the analysis of the principle for deployment control mechanism and driving mechanism and simulation.

针对在工程实际中发现的帆板展开运动不同步现象，本文详细分析了最常见的附件展开控制机构—CCL的工作机理，建立了CCL的反馈控制模型，并给出其具体的数学表达式，讨论了机构参数对帆板运动同步性的影响，进而通过对展开控制机构和展开驱动机构的机理分析和数值模拟讨论了帆板的不同步现象，并提出了减小不同步量的策略。

A method to forecast the electrical endurance of electromagnetic relay was proposed, in which the mathematic modeling of forecasting relay electrical endur ance based on the decrease of overtravel time.

提出一种对电磁式继电器可靠性电寿命进行预测的方法，即根据继电器工作中超程时间的减少，通过时间序列回归分析和概率统计分析，对继电器电寿命的预测建立数学模型。

On the basis of analyzing the construction characteristics and the working proce ss of a revolving spade soil opener a mathematical model was established to desc ribe spade moving trace.

在分析铲式成穴器的结构特点和工作过程的基础上，建立了打穴铲运动轨迹的数学模型并分析了打穴铲的运动规律和成穴机理。

Create Jinfeng 62 (1.2MW) temperature model of mathematics and physics about permanent magnent synchronous generator in wind power, present basic hypothesis and boundary condition. select area that one slot opposite to calculate, utilize FEM calculate roter and stator temperature field. bring forward actual method, carefully analyse the result to generator temperature field, for example reduce coil insulation thickness, decrease conduction coefficient because insulation aging between circle, increase iron-core anisotropism conduction coefficient.

建立了金风62型(1.2MW)永磁同步风力发电机的二维温度场的数学和物理模型，给出了计算边界条件和分析假设条件，以一个槽所对应的电机计算区域，利用有限元方法计算发电机的定、转子温度场，详细分析了绕组线棒绝缘厚度减小、匝间绝缘老化致使导热系数减小、铁心各向异性导热系数提高等参数改进对于发电机温度场的影响。

Besides, the effects of light and temperature on stomata have not been modelled in any mechanistic model.

在第一章中，通过综述气孔对环境因子响应的数学模型的文献，发现目前对描述和模拟气孔行为的经验模型和机理模型是脱节的，可供选择的气孔模型还不能满足理论分析和实际应用的需要；经验模型没有机理的支持，不能用于理论分析，没有普适性；机理模型都过于复杂，而且其中的一些参数难以确定，所以它们还只能作定性模拟，不能作定量预测，另外，对于光强和温度的影响还未见有人模拟。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。