极化

I used circular polarization helix antenna and linear polarization horn antenna do a lot of experiments for many situation, for example, different polarization mode、different distance between antennas and metallic body among antennas, and I acquire some valuable data.

使用圆极化方式的螺旋天线和线极化方式的喇叭天线分别对不同极化方式、不同天线间距和天线之间存在金属障碍物等各种情况进行了大量的实验，并获得了有价值的数据。

The polarization goes up with the increasing of the long-range interaction, and the polarization of the center site in the lattice is larger than that of the corner site under the same condition.

随着长程相互作用的增强，铁电颗粒的极化强度增大，在相同的条件下，晶格中心点的极化强度总是大于晶格边上的格点的极化强度。

Libermann.The early researcheson this kind of manifolds were closely related to Physics and Mechanics.But since1991,S.Kaneyuki published his result on the algebraic condition for the existence ofinvariant〓structures on a coset space,Lie theory has played the most impor-tant role in the study of this kind of manifolds.In particular,dipolarizations in a Liealgebra are closely related to the homogeneous〓manifolds.Dipolarizationsin semisimple Lie algebras and the homogeneous〓manifolds associated withthese dipolarizations have been studied by S.Kaneyuki,Z.X.Hou and S.Q.Deng.Inthe partⅡ of this thesis we study the dipolarizations in some quadratic Lie algebrasand the homogeneous parakahler manifolds associated with these dipolarizations.

Libermann给出的，早期的有关类流形的研究与物理和力学密切相关，自从1991年金行壮二发表了陪集空间上存在不变仿凯勒结构的代数化结果后，李群及李代数理论在这类流形的研究中起着主要作用，特别地，李代数的双极化与这类流形密切相关，半单李代数的双极化的相关几何，金行壮二，候自新和邓少强等人已作了研究，二次李代数是比半单李代数更广且带有非退化不变双线性型的李代数，本文主要研究了二次代数的双极化及相关几何。

Recently for the applications such as modern communications, synthetic aperture radars , electronic detect, electronic counterplot, and radar polarmeters, etc., the dual-polarization and polarization-agile functions of antennas are demanded and their optimization designs of systems are required. Their theory and further applications are being in the process of developing.

近年来在现代通信系统、合成口径雷达、电子探测、电子对抗、极化测量等应用中，要求天线具有双极化、变极化功能，而且整个系统需要优化设计，其理论与应用均处于发展之中。

At the same time,studying the depolarization reaction of D.desulf.has both anode and cathode depolarization reaction.

同时通过电化学试验，研究了D.des ulf的去极化作用，发现D.desulf的存在既有阳极去极化作用，又有阴极去极化作用。

In this beamline, with the neutron depolarization technique, provides information of the mean domain size, the mean square direction cosine of the magnetic induction in the domains, and the mean magnetization of a magnetic sample.

三维去极化中子仪主要为观察极化中子通过磁性材过程，受到内部磁区的扰动使得极化中子向的方向和大小改变，进分析后可以观察出材内部平均磁区大小、平均感应磁场强、磁区平均方向余弦的平方。

The scattering by different shape and different media such as dielectric chiral or conduct circular cylider or elliptic cylinder are calculated and RCS curves are maped. The relation between the optimal polarization of the chiral elliptic cylinder and incident angle are maped. In accordance with the map, the information which is useful for radar target identification can be obtained.

对不同形状及参数的导体圆柱、椭圆柱，一般介质圆柱、椭圆柱，旋波媒质椭圆柱的散射特性进行了计算，给出了其RCS的变化曲线，并对极化散射矩阵进行了分析给出了旋波媒质椭柱最优极化的分布图，指出了其可提取用于目标识别的极化信息。

Firstly, the descriptions of Instantaneous Polarization Projection Sequences of signal and noise are presented and statistics of generalized distance between random EM wave and the anticipant signa are derived.

首先给出了目标散射信号和随机极化波的瞬态极化投影序列表征方法，导出了随机极化波的IPPS到期望点广义距离的统计特性。

Polarization curve and constant potential polarization experiments showed that AE events rate is linear to polarization current density.

极化曲线和不同恒电位下极化的声发射测量显示，声发射事件率与极化电流密度近似成线性关系，说明无论是阳极溶解还是铝合金的阴极腐蚀都是重要的声发射源。

Then, the signal detection of completely polarized is investigated with exploiting the MSD theory.

然后，利用匹配子空间检测理论研究了极化敏感阵列对完全极化信号的检测问题，极化状态未知的信号必定落入一个与到达方向有关的确定的二维子空间内。

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。