With the magnetic field turned on, the iron layers both magnetize, say, in the spin-up direction, so all of the spin-down electrons move through the entire sample without scattering.
加上磁场后，两个铁层都被磁化，假如是上方向，那么所有下自旋的电子移动通过整个样本都没有散射。
Based on the uniform geometrical theory of diffraction, the equivalent current is used to calculate the back scattering field for the finite cone.
在一致性几何绕射理论基础上，采用等效电流的方法给出了有限锥体在完全极化平面波照射下后向散射场的散射极化矩阵表示式。
The result of the effective permeability is calculated both by the field summation and the scattering parameters and the results have a good agreement.
由场平均方法得到的等效磁导率与散射参数反演得到的等效磁导率进行了比较，两种结果符合一致。
On the assumption that there was a small solid sphere in the focusing area, the scattering field of concave sphere ultrasonic transducer was analyzed.
以凹球面超声换能器为研究对象，假设聚焦区存在一刚性球形微粒，对此时的散射场进行分析。
Then the derivation of local illumination source is reported, the near-field electromagnetic scattering characteristics of some electrically large structures are calculated and analyzed.
论文在推导出实现局部照射的激励源的基础上，计算并分析一些电大结构的近场局部照射下的电磁散射特性。
Results show that penetrative wire can make HEMP induced current in circuits inside the shielding box increase greatly through coupling with incident field and scattering field of the shielding box.
研究表明，贯通导线通过与入射场及屏蔽机箱的散射场耦合，可使机箱内与贯通导线直接相连或不相连电路上的HEMP耦合电流显著增强。
The interpolation and extrapolation are widely used in the field of computational electromagnetics, such as antenna designing, microwave technique, radar scattering model, and so on.
内插和外推算法是电磁场领域的常用算法，它在天线设计、微波技术、雷达目标散射建模等各种电磁场计算领域都要用到。
This paper discusses the principles for determining space scattering properties of targets from plane near field scattering measurements. The calculating formulas are derived in detail.
本文论证了由平面近场测量确定目标散射特性的原理，导出了具体的计算公式。
Statistical characteristics of double scattering speckle field in longitudinal motion is studied in detail.
研究了慢纵向运动双散射散斑场的统计性质。
Based on the flow field parameters about the turbulent wake and this scattering model, the effects of reentry wake turbulent plasma is analyzed on the radar cross section.
以已有的湍流尾迹等离子体流场数据为基础，分析了再入尾迹湍流等离子体流动对雷达散射截面的影响。
Laser beam scattering by an object in near field is studied.
研究激光引信波束对复杂目标在近场交会过程中的散射特性。
This work expands the working field of Raman scattering technique, and provide a good method for detecting the temperature of the complex matters.
并开拓了激光拉曼散射光谱技术在电子学中的应用，也同时为测量复杂结构物体表面温度提供了较好的方法。
It was observed that the Rayleigh scattering intensity increased remarkably by the action of the DC field.
观察到由于静电场作用，瑞利散射强度显著增强。
The electromagnetic scattering characteristics of rain media and targets are discussed in the polarization field, with the scattering matrix of rain area and targets are obtained.
在极化域中对雨介质和目标的电磁波散射特性进行了研究。得出了雨区的散射矩阵和目标的散射矩阵。
To cope with inhomogeneous weak scattering, the relation between scattering field and model parameters can be derived from elastic dynamics theory.
针对非均匀弱散射情形，由弹性动力学可得出散射场与模型参数的关系。
The research of radar scattering section(RCS) is always the most important problem concerned in the field of stealthy electronic countermeasures.
各类飞行器的雷达散射截面（RCS）研究一直是隐身电子对抗最关心的问题。
The results show clearly that the charged particles of the magnetotail under the action of the dawn-dusk electric field undergo evident scattering process.
计算结果清楚地显示出了磁尾粒子在晨昏电场的作用下，经历着明显的散射过程。
The average speckle area in dynamic light scattering field was calculated.
讨论了动态光散射场中的散斑平均面积。
The complex ray expansion is a simple approach for target scattering field computation, whose effectiveness depends on the systematic investigation of its error.
复射线展开法是计算目标散射场的一种简捷的方法，其可靠性有赖于对误差特性的系统研究。
A lot of submicro copper particles give a golden scattering light with slight pink hue in the dark field of optical microscope and a greyish red colour in visual observation.
无数的亚显微铜粒在暗场显微镜下呈金黄色散射并略带微红色调，肉眼观察则呈灰红色。
Multiple expansion for the buried body in the stratified Media attd Boundary Element Method (BEM) are combined to obtain electromagnetic scattering field of buried body in the stratified Media.
本文结合平面边界元法和平面多极子展开法，求解平面分层埋入体的电磁散射。
Near-field scattering images clearly show that when three cylinders exist , the scattering fields from cylinders will interfere mutually.
并且在多个导体目标情况下，各自的散射场将互相干涉形成总的散射场。
By spherical function expansion of the scattered sound field in conjunction with rigid boundary conditions, formulas for reconstructing the shapes of rigid scattering objects are derived.
本文用球函数展开散射场，结合刚性边界条件导出了刚性目标的重构公式，并利用该公式重构了刚性球和椭球的形状。
Radar scattering section is very important concept in the field of radar stealth and radar anti-stealth.
雷达散射截面是反雷达隐身与雷达反隐身领域中的一个极其重要的概念。
Then the speckle field model was put forward for dynamic light scattering field.
提出了动态光散射场的散斑场模型。
At relatively high pressure, in addition to electromagnetic field and electron's Coulomb scattering by gas molecules, plasma instability would result in decrease of propagation efficiency.
而较高气压时，束电子除受自身电磁场作用及库仑碰撞散射外，等离子体不稳定性使束流传输效率明显降低。
By using these simulated portal images to reconstruct the incident fluence distribution of the radiation field, the influence of the scattering factor is investigated.
通过用不同程度散射近似下的模拟射野影像来反推射野注量分布，考察了散射因素对反推射野注量分布的影响。
Then we study the accuracy of Kirchhoff's approximation in the scattering of light field from the random self-affine fractal surface.
在此基础上，对采用基尔霍夫近似进行自仿射分形随机表面的散射光场数值计算的精确程度进行了研究。
Then we study the accuracy of Kirchhoff's approximation in the scattering of light field from the random self-affine fractal surface.
在此基础上，对采用基尔霍夫近似进行自仿射分形随机表面的散射光场数值计算的精确程度进行了研究。
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