数学模型

The relationship between the instantaneous value of measured current and the temperature rise was deduced,and the mathematical model of the current transformer was established.

论文中推导了被测电流瞬时值与温升的关系，得到光纤电流互感器的数学模型，利用这一模型，理论上证明了传感器温度输出能准确跟随电流瞬时幅值的变化，量值上有确定关系，能够用来测量电流瞬时值的绝对值。

A physical model of the process of two propulsions is proposed, and a mathematical mode of interior ballistics of two propulsions is also established based on a 12.7mm test gun, while general effects of various parameters upon maximum pressure and muzzle velocity are revealed.

提出了二次发射过程的物理模型，并以12.7mm弹道枪为对象建立了膛内二次发射内弹道数学模型，分析了参数变化对膛压和初速的影响规律。

A mathematical model among the investment,cost and income and internal rate of return was established.

在分析高含硫气田开发经济评价特点的基础上，运用技术经济的基本原理，在估算开发投资、成本、收入的基础上，建立了高含硫气田经济评价模型，通过实例计算出不同投资、成本、价格下的内部收益率，并运用SPSS软件对数据进行一元和多元回归处理，得到投资、成本、价格与内部收益率之间的数学模型。

In this paper, the supply chain stream of funds has been classified into the internal stream of funds and the exterior stream of funds. The process of inventory cost flowing in the supply chain management is analyzed thoroughly. A mathematical model of the two-echelon inventory system taking account of price discounts is developed. A simple and effective approach is proposed for finding the optimal order number. The solution procedure is shown to be effective with a numerical example.

该文把供应链资金流区分为内部资金流和外部资金流，对供应链管理中的库存费用流动过程进行了分析；建立了考虑价格折扣的两级供应链库存数学模型，并运用一种简单而有效的逼近方法求出了模型最优解，确定了供应链中各企业的最佳订货批量；最后用数值实例说明了该方法的有效性。

The paper has first analyzed the heterogeneity asynchronous machine mathematical model harmonious wave analysis, and has carried on the analysis to the heterogeneity asynchronous machine invertor power supply situation's space and time overtone, has established under six asynchronous machine static coordinate system's simulation model and has given the concrete step which Matlab/Simulink realizes, has conducted the analytical study to six asynchronous machine's characteristic.

论文首先分析了多相感应电机数学模型和谐波分析，并对多相感应电机逆变器供电情况下的时空谐波进行了分析，建立了六相感应电机静止坐标系下的仿真模型并给出了Matlab/Simulink实现的具体步骤，对六相感应电机的特性进行了分析研究。

The relation between the irradiator and the distribution of temperature field, heating efficiency in the preheating process was obtained.

在此基础上建立了预热过程中粉床温度场的三维解析数学模型，并利用该模型采用MATLAB软件对管式和板式预热装置下的粉床受热情况进行了数值模拟。

According to invalidate transform between non-linear constraining function and linear constraining function, and the disable partial differential coefficient of first order for objective function, GA has been chosen for the built mathematic mode, also, the conception of GA, its computing process, features, and operating parameters are introduced irrespectively in this article, meantime, a managerial software for oil pipeline's optimization is programmed.

根据优化模型中的非线性约束函数无法化为线性约束函数，目标函数无法求一阶偏导数的特点，本文从众多优化方法中选择遗传算法对所建立的数学模型进行求解，并对遗传算法的概念、计算步骤、特点、运行参数等逐一进行介绍，并编写了输油管道优化运行管理的软件。

The different grains of the deposited materials are basically parallel to the isobaths, sand lower than–3m isobath and silty clay deeper than–3m isobath.

2数值模型要定量预测海湾填海工程可能引起的海底冲淤影响，建立数学模型是最有效的方法。

In which the correlation of wind power outputs is characterized by the joint probability distribution.

提出了风力发电场的随机潮流数学模型，该模型能够计算含风力发电场的电力系统潮流，分析包含具有相关性的多个风力发电场的电力系统。

A new turbulence transport model with the k-ε theory in membrane separation has been formulated and implemented in this thesis.

在传递理论基础上，结合膜过程的传质方程和湍流的κ-ε模型，建立了适用于微滤和超滤过程的"沿膜管二维湍流膜分离数学模型"。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。