栅

This paper describes latest developments of polarization gratings polarization characteristics and grating diffraction theory.

介绍了亚波长偏振光栅的发展概况与最新研究进展，亚波长偏振光栅的特点及衍射理论，并分别对金属亚波长偏振光栅和介质亚波长偏振光栅进行了分析。

By analyzing experimental data, some conclusions were made that adding normal loads on silt is not an applied method to raising interface shear resistance, Adding some large grains of debris in slit can strengthen the passive resistance force of the transverse ribs of geogrids, yet reduce the integrated pullout resistance force of geogrids when subjected to low normal loads, the ultimate pullout force can be greatly enhanced by adding normal stress to restrain soil dilatability .

对试验结果比较分析后发现：单纯提高法向荷载来增加格栅表面的摩擦剪切阻力的方法并不适用；在粉土中加入大粒径碎石，可以提高格栅横肋的被动阻力，但在竖向荷载较小的情况下，反而降低了格栅的整体拉拔阻力；施加适当的法向荷载，抑制土体的剪胀效应，格栅整体拉拔力得到了显著增强。

This paper described several applicable measurement techniques and characteri-stics in the study of Spacer grid clipping force relaxation behaviour,such asmeasuring clipping force relaxation in the laboratory,measuring fuel rod brea-kaway force and withdrawal force within the cell of post-irradiated 17×17 asse-mbly,measuring friction force and cell size withi...

本文介绍了定位格架夹持力辐照松弛研究中几种适用的测量方法及其特点，如在实验室研究中测定位格架弹簧力的松弛，在辐照后的17×17验证组件中测燃料棒在栅元中的移动力和滑动力、在抽出燃料棒的空栅元中测栅元摩擦力及栅元尺寸等方法。

Through indoor tests and field tests this paper has researched the geogrid' s characteristics of application in highway engineering, such as characteristic of intension, creep, endure, damnify in construction etc.. Based on these researches this paper has also researched the working characteristics of contact face between geogrid and soil and the method of geogrid-reinforced slope analysis. Mechanism of geogrid-reinforced slope has been analyzed. In the end , techniques of geogrid-reinforced embankment' s construction has been researched through substantiality of engineering.

文章通过室内、外试验，对土工格栅的强度特性、蠕变特性、耐久性能及抗施工损伤性能等工程应用特性进行了研究；在此基础上，结合室内试验和理论分析对土工格栅与土的界面工作特性和加筋边坡的稳定性分析方法进行了研究，对土工格栅加筋边坡机理进行了分析；最后结合实体工程，对土工格栅加筋陡边坡的施工工艺进行了系统研究。

In order to make clear the phenomenon of current zero in the arc-quenching chamber of deion plates, the process of dielectric recovery and reignition of short arc between iron plates is investigated, and then the dielectric recovery strengths of various chambers are measured and compared. The different characteristics near current zero in the deion plate chambers are also analyzed based on experiments in the paper.

为弄清栅片灭弧室内电弧电流的过零过程，专门研究了不同条件下栅片间低压短弧的介质强度恢复过程和电弧重燃过程，然后测量了多纵缝和栅片灭弧室的介质恢复强度，对比了它们的熄弧性能，在试验的基础上，分析了栅片灭弧室中电弧电流的过零特征。

Reducing secondary flow losses is one of the key techniques to improve aerodynamic performance of turbomachine blade. Non-axisymmetric Endwall Profiling of turbomachinery blade has been proved to be an effective technique in reducing pithwise pressure gradient between pressure surface and suction surface.

降低叶栅内部二次流流动损失是提高透平机械通流效率的重要方法之一，非轴对称端壁成型技术已被验证能够有效地减小叶栅压力面与吸力面之间的横向压力梯度，降低叶栅内部二次流流动损失，提高叶栅效率。

Based on theoretical analysis, a three dimensional non-linear finite element program is developed to examine the effects of alleviating bridge approach differential settlement by emplacing geogrids in the backfill behind bridge abutment. After analyzing the character of stresses and displacements within backfill behind bridge abutments and the interfacial friction action between geogrids and fillings, mechanism of using geogrids to reduce differential settlement is obtained.

在理论分析的基础上，利用有限单元法编制了土工格栅处理路桥过渡段差异沉降的三维非线性有限元程序，并结合工程实例对台背回填的三维性状进行系统分析，研究了铺设土工格栅对台背填土位移场和应力场的影响，分析了土与格栅界面剪应力的大小和分布，从土与格栅的界面作用阐述了减小沉降差的机理。

The invention discloses a high-voltage P-type metal oxide semiconductor, including a P-type substrate, a deep N-well is arranged on the P-type substrate, an N-well drift region and a P-type drift region are arranged on the deep N-well, an N-type contact hole, a P-type source and a field oxide layer are arranged on the N-well, a P-type drain and the field oxide layer are arranged on the P-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the N-well is smaller than the grid oxide layer part which is positioned above the P-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly.

本发明公开一种高压P型金属氧化物半导体管，包括P型衬底，在P型衬底上设有深N型阱，在深N型阱上设有N型阱和P型漂移区，在N型阱上设有N型接触孔、P型源及场氧化层，在P型漂移区上设有P型漏及场氧化层，其特征在于位于N型阱上方的栅氧化层部分的厚度小于位于P型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层。

Based on the experimental data of the strain of the geogrids at different embedments, a three dimensional strain surface that represents a function of coordinate and time is obtained. The time function for pull-out force of geogrids is deduced through integration of friction along total length of geogrids.

通过不同埋设位置的检测点所得到的格栅即时应变数据，拟合出格栅的三维应变曲面ε；对格栅表面上的摩擦力进行全段积分，得到格栅拉拔力的时程函数T。

The thin film transistor may include: a gate insulting layer; a gate electrode formed on the gate insulating layer; a channel layer formed on the gate insulating layer; and source and drain electrodes that contact the channel layer.

具体而言，薄膜晶体管可以包括：栅绝缘层；形成在栅绝缘层上的栅电极；形成在栅绝缘层上的沟道层；以及接触沟道层的源和漏电极。

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。