折射

It compensated masterly both linear birefringence and Verdet constant, which affected the stability of OCT mainly, by combing optical measurement and comparing measurement.

它将光学测量法与比较测量法相结合，巧妙地实现了对线性双折射和Verdet常数这两个稳定性影响因子的同时补偿。

As the spectral width (Full width half maximum: FWHM) range from 6nm to 60nm, the simulation results show that the effect of the variation of the FWHM upon the output is small. When only the Verdet constant is considered, the output increased slowly with the increase of the FWHM. The simulation results are verified by the experiment.

当光源光谱宽度在6nm到60nm之间变化时，不同谱线宽度光源对系统输出影响的仿真结果表明：光源谱宽变化对系统输出的影响相对于其单色模型来说，相对变化小于10~(-3)，因此光源谱宽变化对系统输出的影响较小；如果完全消除了线性双折射和反射相移，则系统输出随光源谱宽的增加有微弱的增加：由于Verdet常量的影响最大，所以系统输出随光源谱宽的增加有微弱的增加；实验结果验证了该结论。

Field surveys of the shallow refraction and microlog for both P-wave and S-wave have been made simultaneously in a work area.

在一个工区同时开展了浅层纵横波折射、纵横波微测井的野外勘探，并取得较为丰富的野外资料以及处理和解释成果。

In view of this issue, the surface survey software in the GeoMountain Acquisition System, through manmachine interactive processing and interpretation of micro VSP, micro logging, mallangle refraction as well as twinwell microlog, realizes surface velocity inversion and establishes an exact surface physical model, thus guiding field excitation as well as receiving and providing reliable data for the static method.

针对该问题，GeoMountain采集工程师表层调查软件通过对微VSP、微测井、小折射和双井微测井等资料的人机交互处理和解释，实现了表层速度反演，建立了准确的表层物理模型，从而指导野外激发、接收，为静校正量计算提供了可靠的数据。

In view of this issue, the surface survey software in the GeoMountain Acquisition System, through man-machine interactive processing and interpretation of micro VSP, micro logging, mall-angle refraction as well as twin-well microlog, realizes surface velocity inversion and establishes an exact surface physical model, thus guiding field excitation as well as receiving and providing reliable data for the static method.

针对该问题，GeoMountain采集工程师表层调查软件通过对微VSP、微测井、小折射和双井微测井等资料的人机交互处理和解释，实现了表层速度反演，建立了准确的表层物理模型，从而指导野外激发、接收，为静校正量计算提供了可靠的数据。

However, various methods are used to suppress surface waves from shooting to receiving in the process of seismic survey, thus research should be carried out in the following aspects:① joint inversion with surface wave, refraction first break and microlog data;② offset range and the relation between group interval and surface resolution suitable for use in surface wave analysis;③ the influences of lateral relief of array on propagation of surface waves;④ method for Hi-Fi purification of surface wave signals;⑤ method for extracting dispersive curve through time-frequency analysis;⑥ forward modeling and in-version methods of surface wave in view of three-layer structure.

但石油勘探从激发到接收，都采取各种方式来压制面波，因而需要开展多方面的研究：①结合面波、折射初至波和微测井信息的联合反演；②地震记录中适合面波分析的炮检距范围、道间距与表层分辨率的关系；③排列横向地形起伏变化对面波传播规律的影响；④高保真提纯面波信号的方法；⑤运用时频分析提取频散曲线的方法；⑥针对三层结构的面波正反演方法。

First, by taking into account not only interband effects but also intraband effects, such as carrier heating , spectral hole burning , two-photon absorption and ultrafast nonlinear refraction and the interaction of control pulse and signal pulse in SOA, the relationship between the performance of TOAD (including flatness of switching window, chirp of output signal and extinction ratio of the demultiplexed signal) and the parameters of input pulse (including the wavelength and power of control and signal pulse) are studied.

首先，在考虑到由于带内效应，诸如载流子热效应、谱烧孔效应、超快非线性折射效应和双光子吸收效应而导致得非线性增益压缩效应以及控制光和信号光相互作用情况下，研究了TOAD的各性能参数，包括开关窗口的平坦性、输出信号的啁啾特性、解复用信号的消光比特性等与输入控制光和信号光的波长及功率的关系，在此基础上对TOAD性能进行了优化。

Using two perfect plasma models(concentric sphere and variable focus ellipsoid), which have different shape and different gray distribution, the different cross-section tomograph figure and the gray density diagram are presented . The offset distance formula , which describes the laser beam penetrates through the laser welding plasma, is presented.

对两种理想的等离子体模型(三同心球体和变焦距椭球体)进行了分析，建立了不同剖面的密度分布层析图，给出了激光束穿越球形等离子体时由于折射引起的对光轴的偏移距离的公式。

The three novels catch hold of the kernel of contradictory political forces, and reveal the conflicting relationship between the factors of the desires for power in English cultural tradition, and refract the paradoxes formed from the unsolvable problems in the political modernization: the modernization in England upgraded prolificacy with an unprecedented speed, offering opportunities of emancipation of personal desires, the appealing to personal power in politics pressed for a breakthrough in the traditional political setups, leading reform to modernization, which emancipated political forces, aggrandized political rights, and satisfied some people\'s desire for power in a certain extent.

这三部小说抓住了现代化进程中各种政治力量的相互矛盾这个核心，揭示了英国传统文化中欲望力量诸因素相互冲突的关系，折射了政治现代化难以解决的矛盾所形成的悖论：一方面，英国现代化进程前所未有地提升了生产力，使人的个性解放成为可能，个人权利的诉求迫切要求冲破传统的政治格局，使政治通过改革走向现代化。

The time-resolved hemispherical reflectance and transmittance of the slabs with linearly varying refractive index are obtained for various optical thicknesses, scattering albedos and substrate reflectances.

接著，求各种光学厚度、散射比和基底反射率的线性可变折射系数平板的时间分解半球反射率与半球穿透率。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。