流函数

This paper aims at the time performance of the entire system and uses the task flow graph as the system model.Based on it,an evaluation function based on the priority is achieved,then a new algorithm combining the search space smoothing technology with discrete particle swarm is proposed and whose parameters can be adjusted automatically.At last,the combination problem is addressed.

以提高系统时间性能为目标，利用任务流图构造系统模型，在其上实现了基于优先权的评价函数，提出了搜索空间平滑技术与离散粒子群算法相结合的软硬件划分算法，并且解决了两者的融合问题，并能根据系统信息动态适应调整算法参数。

A computation model of pressure distribution in CO2 gas well is established according to energy balance equation of vertical pipe flow with consideration of the interaction between temperature and pressure, and regarding fluid deviation factor as a function of temperature and pressure.

根据垂直管流的能量平衡方程，综合考虑压力、温度的相互影响，同时将流体偏差系数考虑为压力和温度的函数，建立了二氧化碳气井井筒压力分布计算模型。

According to the physical model, a simplified mathematical model is proposed for the paint flux distribution function, which describes the flux field within the spray cone.

本文在研究了喷涂机器人的喷炬特性后，根据物理模型采用了一种简化的数学模型来描述在喷炬流场中的涂料流量分布函数。

In addition, the leakage coefficient decreases with the decrease of gap width at the same rotational speed.

研究结果表明：用相对流量系数（转动时的流量系数与静止时的流量系数的比值）与速比（周向速度与轴向通流速度的比值）的函数关系表征泄漏量随转速变化的规律时，存在一个临界速比约等于1.0；低于这个临界速比时，转速对泄漏量的影响不明显；高于这个临界速比时，泄漏量随转速的增大而减小，在很高的转速下（6000r/min以上），泄漏量至少减小了5.1%；相同间隙下，泄漏系数随着压比的提高而近似线性增加；相同转速下，随着密封间隙的减小，相对泄漏量逐渐降低。

In this paper, model of vehicle with double axes is used to study the vibrations of vehicle-bridge dynamic interaction system. The active control law based on linear optimal control theory is designed, In which the transient power flow and displacement at mid-span of bridge are accounted separately.

本文采用能更加逼近真实车辆的双轴车辆模型，应用线性最优控制理论，采用可有效控制一阶振型的双臂弯矩控制系统，分别以双轴车辆输入桥梁的瞬时功率流和桥梁的跨中位移振动响应为目标函数来设计控制律。

Based on Galerkin finite element method, a new upwinding finite element numerical model suitable for modeling wind driven current in shallow lakes is derived by introducing streamline upwinding method and the selective lumping coefficient matrix scheme.

从控制方程组出发，以 Galerkin有限元法为基础，引入沿流线加权的权函数(沿流线加权的迎风有限元法)和选择性集中系数矩阵方法，推导、建立了一适合于浅水湖泊风生流计算的二维迎风有限元数值模型。

The simulation results of the model are consistent with the results of wind tunnel experiments. It shows macroscopically the rationality of the distribution function of lift-off velocity of saltating sand grain.

数值计算结果显示，风沙流垂向质量百分浓度与风洞实验结果符合得较好，这在宏观上说明沙粒起跳初速度分布函数的合理性。

Finally, the thesis analyzes statistical laws of the maximum saltating height and saltating length of saltating sand grains and they follow Gamma function distribution. This is consistent with the results of water-sand motion. It shows that statistical laws of saltating height and saltating length of saltating sand grains are independent of the medium of flow. It is possible the nature of saltating sand grains.

最后，分析了沙粒跃移距离、跃移高度的相对量的统计规律，认为它们均服从Gamma函数分布，与在含沙水流中的研究结果一致，说明沙粒跃移运动的跃移高度与跃移距离的统计规律与流场、所处的介质无关，这可能是沙粒跃移运动的本质所在。

A new algorithm of discrimination between inrush currentand fault currentof transformer is brought forward based on self- correlation analysis,which is to calculate self- correlation coefficients of variant periods after analyzing the sam pling data and then discrim inate between inrush current and fault current by using the m agnitudes of the calculated coefficients.

提出一种利用数字信号处理中的相关函数的基本概念，对采样数据进行分析，计算采样数据在不同时段上的自相关系数，利用自相关系数的大小来区分变压器励磁涌流和内部故障差流的新方法。

Various influence factors of solid boundaries on discontinuuties in the gas molecular distribution function are considered and a bimodal two-stream relaxing distribution is suggested.

分析了固体边界对分子分布函数不连续性的各种影响因素；提出了双峰二向流弛豫分布，将它应用于麦克斯韦输运方程以研究二平行平板间的热传导，得到了封闭解。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。