场强度

By using the swirling strength method,the vortex structures excluded the effect of shear were shown clearly,and were concentrated in the coniform area of the central mixing flow field.With increasing Reynolds number,swirling strength increased and the coniform area became narrow.

利用旋涡强度法分析流场清楚地显示出排除了剪切作用的涡结构主要集中在混合层中心的锥形区域，随着Reynolds数的增大，旋涡强度的值不断增大而锥形区域不断变窄。

By using the CFD software FLUENT, the inner-flow field of centrifugal fans with ruled-surface impeller versus with enveloping surface impeller has been simulated. The static pressure distribution, the dynamic pressure distribution, the total pressure distribution, the turbulent intensity and the speed vector of the two kinds of centrifugal fans are then analyzed and compared. From the calculating results, we found that the pressure distribution, the speed vector and other parameters of the two kinds of centrifugal fans are basically same. This implies that the tool-path generating arithmetic for the machining of the impeller can meet the aerodynamic requirements of the centrifugal fan. Furthermore the method can provide proof for designing department to establish sound manufacturing tolerance for impeller.

最后采用CFD软件FLUENT，利用标准k-ε湍流模型，采用分离隐式求解器，分别对直纹面叶轮离心通风机和包络面叶轮离心通风机整体风机内部三维流场和单个通道流场进行了数值模拟计算，在计算结果的后处理中，对相同坐标值处的静压力、动压力、湍流强度和速度矢量等参数进行了分析与比较，结果表明：在相同的计算参数条件下所得到直纹面叶轮离心通风机和包络面叶轮离心通风机内部流场差别不大，从而揭示所采用的叶轮数控加工的刀位规划方法的规划误差对流体机械动力性能的影响不大，这也为设计部门制定合理的叶轮加工公差提供了依据。

The effects of the atomic initial state, mean photon numbers of field, the degree of the entanglement for the entangled coherent field, and the coupling strength between the Kerr medium and field on the atom's population are discussed via numerical calculations.

讨论了双原子体系的初态、初始光场的平均光子数、双模纠缠相干光场的纠缠程度及Kerr介质与双模光场的耦合强度对原子布居时间演化特性的影响。

This text was described from several following respects:First of all, I make introduction of Shanxi Yihetuan Movement, analyze through a large number of historical data to participant, main content, range, intensity, and think the movement rely mainly on peasants and handicraftsman to violence struggle against foreign church, and happens widely and destroying the intensity largely.

本文是从以下几个方面进行论述的：首先，笔者通过大量的史料对山西义和团运动的参与者、主要内容、范围、强度做了大致的介绍与分析，认为这是一场以广大农民与手工业者为主体的民间反洋教暴力斗争，并且发生范围广、破坏强度大。

The results show that the scattered radiant intensity is always symmetric with respect to the polarization plane, and that the scattered intensity is sensitive to the scattering particle size regardless of the incident radiation polarization, and finally, that the vertical components in the scattered light are totally different distribution for two kinds of polarized radiation.

散射粒子直径分别为：1.24μm、0.494μm、0.36μm、0.123μm、0.065μm。以粒子与水技不同比例混合液，作为散射粒子场。所得结果表明，散射光强度总是相对入射光束的偏振面呈对称分布；散射光强度对散射粒子大小敏感而与入射光偏振态无关；散射光中垂直偏振分量在两种光入射下存在完全不同的状态分布。

From the shadowgraphs, it is observed that the patterns of a plane incident shock wave reflected from the parabolic reflector can be either a regular reflection or a Mach reflection which depends on the shock wave strength and the reflector geometry.

由流场观察得知，入射震波强度较小、收敛角较小的，震波经反射体的反射型态趋向於正规反射，当入射震波强度增强、收敛角增大时，反射型态则会由马赫反射型态再转为正规反射型态。

Further, the bifurcation diagram and the contour maps of vertical velocity field, streamlines, temperature field, concentration field and sideview shadowgraph intensities corresponding to the convection patterns of three Rayleigh numbers along the bifurcation upper branch were given.

进一步，我们给出了分叉曲线及其沿分叉曲线的上部分支三个Rayleigh数对应的对流图案的垂直速度场，流线，温度场，浓度场和Shadowgraph强度的等值线图。

In this paper,by analyzing mathematically starting from physical concept,the relation between intensity of secondary nonlinear polarization and optico-electric field strength is presented under the condition of kleinman symmetrization,and the equation of amplitude coupling is deducted.

安徽大学物理系；四川激光，，编辑部邮箱 1983年 02期二次非线性；总电场；非线性极化率；极化场；振幅；耦合方程；极化强度；从物理概念出发，通过数学解析，在Kleinman对称性条件下，给出二次非线性极化强度与光电场强的关系，并推导出振幅耦合方程。

In addition, the remanent magnetization vector field can not be transformed into potential field in general.

对地磁场的观测是在地表或卫星高度这样的球面上完成的，且岩石层的剩余磁化强度矢量场一般不能转换为位势场，因此需要研究球面各向同性随机矢量场。

Main advances of research on vortices in pump sumps;2. Based on flow field analysis,it shows that owing to the wakes behind the upstream suction pipe,the downstream flow becomes more turbulent and appears with obvious free-surface vortices and submerged vortices in complicated movement.

本文在玻璃水槽内对不同管间距条件下的吸水管周围进行了大量的PIV流场量测实验，通过流场分析显示，上游吸水管的尾流作用加剧了下游吸水口的水流紊动强度，流场多处出现表面旋涡和水内旋涡，其运动形态复杂多变。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。