偏

The physical model of polarizing beam coupling and splitting system using altazimuth coude telescope is built up based on Mueller matrix and Stokes vector. The phenomena of the decreasing of the receiving efficiency are successfully explained by this model. Three dynamic phase compensation solutions are proposed: 1 Two quarter-wave plates are rotated to compensate the phase of the laser.

针对这个问题，建立了地平式折轴望远镜的共孔径偏振耦合分光模型，用Stokes矢量和Mueller矩阵分析了在望远镜旋转过程中激光偏振态的变化，数值模拟计算了望远镜处于不同方位角和天顶角时的偏振耦合分光效率，解释了实验中观察到的望远镜旋转导致偏振耦合分光效率退化的现象。

We discuss asymptotically best linear unbiased estimators of the Logistic population based on selected order statistics and give the formula of computing the ABLUE, the variance and the covariance of the ABLUE in limit, and properties of the ABLUE, and so on. We give the optimum chosen of spacing which is the ABLUE with maximum asymptotic relative efficiency based on complete sample when selected order statistics number is less than 10, and obtain its maximum asymptotic relative efficiency.

讨论基于Logistic总体Ⅱ型截尾样本的若干个样本分位数的总体分布参数的近似最佳线性无偏估计；给出了该近似最佳线性无偏估计的计算公式，估计方差与协方差的极限表达式及估计量的大样本性质等；给出了全样本，样本分位点个数固定，但不超过10情形下，使上述近似最佳线性无偏估计有最大相对联合估计效率时，样本分位数选取法及最大相对联合估计效率；为大样本情形下，该近似最佳线性无偏估计的应用提供了理论依据。

A new frequency estimation algorithm for Time Domain Synchronization OEDM system is proposed, which utilizes the time domain circular characteristic of PN sequences to adjust frequency offset and then uses a variable step frequency scan scheme to estimate large frequency offset.

提出一种新的适用于TDS-OFDM系统的频偏估计算法，利用PN序列的时域循环特性进行预频偏调整，然后用变步长扫频进行大频偏的估计，定时同步之后再利用PN的时域循环特性进行细偏估计。

The rank function is introduced for poset greedoids on the base of poset matroids,and the closure operator s are defined and a series of properties of closure operaters of poset greedoids are discussed.

在偏序集拟阵的基础上，引入了偏序集广义拟阵的函数，定义了偏序集广义拟阵的闭包算子，讨论了偏序集广义拟阵的一系列性质。

The foundation and the pumping characteristic of the neutrality gases provide important physics parameter for investigate the ability of impurity stay, concentrate and remove efficiency and the radiation divertor, debouch divertor.

实验结果表明，HL-2A装置边缘等离子体扰动诱发的静电雷诺协强产生了边缘极向流；偏滤器位形运行模式下，主真空室中边缘等离子体再循环降低，杂质水平下降，中性化气体的建立和抽除特性为研究偏滤器的杂质滞留，浓缩能力和排除效率以及辐射偏滤器，脱离偏滤器提供了重要的物理参数。

A general form of D-FOG has been proposed in order to lower the bias drift and several forms of that have been studied:(1) The Blake type in which a depolarizer is inserted between the polarizer and coil-coupler of D-FOG can suppress the intensity error but not change the magnitude order of the amplitude error.(2) The type with two Lyot depolarizers added in the ends of sensing coil can suppress efficiently the both errors.

为了减小D-FOG漂移，作者提出去偏陀螺的一般形式，并分析其中几种重要形式：（1）在偏振器与环分束器之间插入Lyot去偏器的Blake形式，可以有效地降低强度误差但不改变振幅误差的量级；（2）在传感环两端各插入一个去偏器可以有效地抑制这两种误差。

By using "Behavior Style Questionnaire- Short Form" and "Young Child Attention Scale", the main findings are listed as follows: A.Results on the dimensions of temperament indicated that children's characteristics of temperament show high on rhythmicity, adaptability and intensity of reaction, middle on activity level, withdrawal, persistence and distractibility, low on sensory, and a little negative on quality of mood.

并采用「幼儿气质量表」与「幼儿注意力量表」收集资料，透过SPSS15.0的资料处理与分析，描述性统计、单一样本t考验以及皮尔森积差相关与多元回归分析结果显示：一、受试幼儿在气质各向度的表现特徵是反应强度大、情绪本质稍偏负向及反应阈偏低现象，其他，则活动量中等但稍偏低、规律性高、适应性高、面对新事物的反应倾向趋性，且坚持性、分神度均有偏高倾向。

We point out the correspondences between Lie group, Lie algebra and some keyformulae of Huston-Kane method.

首次指出偏速度与偏角速度构成运动相空间的Lagrange子流形，揭示了偏速度与偏角速度的本质及Huston-Kane方法对动力学问题的变换思路。

Then, making use of the concept of eigenstate of polarization , the Jone's matrices of the coupler and the fiber are discussed in order to study the polarization state of the light in the resonator ring. The situation can be distributed into three kinds, two ESOPs are orthogonal, not orthogonal and only one ESOP exits, and each coincides to the special quality of the components in the ring.

其次借助偏振特征状态概念对偏振环中的光束偏振状态进行研究，从耦合器和光纤的琼斯矩阵着手，推导出表达偏振特性的公式，再将偏振情况分为三类，分别是两ESOP正交、不正交和只有一个ESOP，每一种情况都与组成光纤环的元件实际的性能相符。

By analyzing next-spring abnormal features of 500 hPa height and 850 hPa, 200 hPa meridional wind due to Nino3 SST rising, it is found that Nino3 SST rising abnormally in the second half year leads to 500 hPa height field rising in the tropic and Northwest Pacific subtropical region, namely the Northwest Pacific subtropical high is stronger and shifts westwards and northwards compared with the mean, and the trough over East Asia is weaker with its location shifts eastwards; the height field falls from the area around Balkhash to Baikal Lake, i.

通过分析下半年Nino3区(150o~90oW，5oS～5oN)海表温度升高引起的次年春季500 hPa高度、850 hPa及200 hPa经向风的异常特征，发现下半年Nino3区显著升温，可导致次年春季热带和西北太平洋副热带地区的500 hPa高度场升高，即西太平洋副热带高压偏强、偏西、偏北，东亚大槽偏弱、偏东；巴尔喀什湖至贝加尔湖的高度场降低，即该地区经常有低槽维持；亚洲至西太平洋地区盛行纬向环流。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。