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The results show that the equiaxed zone ratio of the casting billet is greatly increased,with its soidification structure is obviously improved,and the momentum values of the electromagnetic forces both parallel to and perpendicular to the direction of the traveling magnetic field pulsate periodically with time.

采用三相通入不同电流的非平衡线性电磁搅拌技术进行了铸坯的静态浇铸实验，并对电磁搅拌过程中钢液内的电磁力各分量的瞬时值进行了理论分析·结果表明，当采用将电磁搅拌器的三相通入不同电流的非平衡线性电磁搅拌时，在钢液内所产生的电磁力是脉动的，其大小呈周期性变化，尤其是垂直于磁场运动方向上的电磁力，其脉动的幅度很大·由此认为，当采用将搅拌器的三相通入不同电流的非平衡线性电磁搅拌时，所产生的垂直于磁场运动方向上的脉动电磁力是提高等轴晶比率，改善铸坯凝固组织的一个重要原

Disclosed is a leaky-wave dual polarized slot type antenna, including: first and second feeding circuit sections comprised of N-first strip lines and N-second strip lines with a loop every first period along the X-axis on the first dielectric layer and a second period along the Y-axis, in which the N-first strip lines and the N-second strip lines are parallel to each other being alternate, and each length of Ls1 and Ls2 for the first period satisfies the equation of , first and second multi-channel dividers formed at once and the other sides of the first dielectric layer, to connect the N-first strip lines and the N-second strip lines parallel with each other; and first and second central ports formed in the opposite direction of the cavity, each of the feeding circuit sections being connected to the first and second multi-channel dividers; and first and second slot sections being formed by patterning the second shielding layer, in which M-first and M-second slots are arrayed along the direction of the X-axis and each of the first and second slots forms N-row first and N-row second slot arrays, respectively, which cross the first and second strip lines for each, the first slot and the second slot being orthogonal to each other.

公开了一种漏泄波双偏振槽型天线，包括：第一和第二馈电回路部分，其具有沿着X轴在第一介电层每第一周期以及沿着Y轴的第二周期形成具有环路的N第一带状线和N第二带状线，其中N第一带状线和N第二带状线彼此平行并交替，并且对第一周期的各Ls1和Ls2的长度满足等式，第一和第二多通道分配器寻形成在第一介电层的一侧和另外一侧上，以连接彼此平行的N第一带状线和N第二带状线；以及形成在腔的相对方向中的第一和第二中心端口，每个馈电回路部分连接到第一和第二多通道分配器；以及第一和第二槽部分，所述第一和第二槽部分通过对第二屏蔽层形成模式而形成，其中M第一和M第二槽沿着X轴的方向安置，各第一和第二槽分别形成N行第一和N行第二槽阵列，其对每个横过第一和第二带状线，第一槽和第二槽彼此正交。

Week 11 Work of static electric field force, theorem of closed path in static electric field, electric potential energy and electric potential, gradient of electric potential, charged particle in static electric field and its motion.

第11周静电场力的功；静电场的环路定理；电势能和电势；电势的计算；电势梯度；静电场中的带电粒子及其运动。

Substituting the dynamic model of a two-dimensional piezoelectricactuator into laminated piezoelectric plates,this paper transforms a problemof the laminated piezoelectric plates into the superimposition of a pureproblem of classical laminated plates and a pure problem of electrostatics,which gives another method for analyzing laminated piezoelectric plates.Themethod has advantages of simplicity,and practicableness.

将二维压电致动器的动力学模型应用于一般压电层合板结构中，本文将一压电层合板问题转化为一纯的经典层合板力学问题和一纯的静电学问题的简单组合，便给出了另一分析压电层合板的方法。

In order to ensure the reliability of ESP sizing and the compatibility of ESP performance, a detailed research is needed for the precipitability of fly ashes from coal burning.

燃煤煤质和飞灰成分对电除尘器性能的影响是大型火电厂电除尘器设计选型中的一大难题，为了保证电除尘器设计选型的可靠性和运行的兼容性，必须对燃煤飞灰电除尘特性进行系统的研究。

However, because of the obvious snapback breakdown characteristic of NMOS transistor and the layout geometry effect on the distributed base resistance of each parasitic lateral bipolar transistor, multi-finger NMOS cannot be triggered on uniformly under ESD stress.

然而由於N型金氧半电晶体具有明显的骤回崩溃特性，以及布局上每根指状N型寄生横向双载子电晶体之等效基极电阻之不同，造成多指状结构N型金氧半电晶体在静电放电轰击下，并不会均匀的导通来排放静电放电电流，而是集中於某些指状N型金氧半电晶体。

For MOS capacitors, the saturation current is mainly attributed to the electron-hole pair recombination mechanism. But for MOS capacitors, the saturation current is mainly attributed to the electron-hole pair generation mechanism, and is also controlled by interface trap densities, bulk traps, and suboxide.

对於N型矽基板上的氧半电容而言，其饱和电主要为电子电对在界面及空乏区的合机制，但是对於P型矽基板上的氧半电容而言，其饱和电受控於空乏区内电子电之产生与表面陷阱电荷，矽基板内缺陷，还有次氧化层。

The test methods of electrical property on liquid farm products,making edible plant oil as trial object,were studied by using self-government syntony testing device of parallel flat three electrode.

分析了农产品介电特性的测试原理和食用植物油介电特性机制，以食用植物油为试验对象，研究了流体类农产品介电特性测试方法，自制了平行平板三电极结构的谐振替代测试装置，并利用该装置在一定的频率和温度范围内，探讨了食用植物油介电特性与频率和温度的关系。

In this thesis, the heterojunction with intrinsic hydrogenated amorphous silicon thin layer ( heterojunction with intrinsic thin layer: HIT) solar cells are investigated. The solar cell structure of p/i/n are fabricated. The substrate is a typical 4-inch n-type wafer with (100) crystal orientation, 1~10 ohm-cm and about 525 μm thickness. The p and i a-Si:H layers are deposited by a 13.56 MHz plasma enhanced chemical vapor deposition. The i a-Si:H layers are especially deposited by pulse-wave modulation plasma technique with fixed plasma turn-off time toff = 10 ms and changed plasma turn-on time ton= 10 to 40 ms to selectively control the different silicon to hydrogen bonding configurations. The effect of various Si:H bonds on the performance of HIT solar cells are explored.

中文摘要本论文针对异质接面薄本质层(heterojunction with intrinsic thin layer： HIT)太阳电池进行研究，采用一般典型四英吋晶向为(100，厚度约为525 μm，电阻率约为 1~10 ohm-cmn型矽晶圆为基板，制作p/i/n太阳电池，p及i层薄膜以13.56 MHz电浆加强化学气相沈积，i层并采用脉波调变电浆技术，在固定电浆关闭时间toff = 10 ms及改变电浆开启时间由ton = 10 ms 至40 ms条件下制作具有不同矽氢键结微结构的氢化非晶矽薄膜以探讨不同矽氢键结对太阳电池性能的影响。

In general, the layered feature of electrical structure is analyzed first of all for defining preliminarily whether a DES exists in the target area or not. Then the contours of resistivity in resistivity tomogram are analyzed from the deep to the shallow part. If they extend upwardly from the deeper part to shallower one and shape into the integral dislocation, great flexure or gradient zone, it would indicate there exists the DES reflecting a buried fault. At last, horizontal tracking needs to be carried out for defining the trend of the DES reflecting a buried fault.

一般情况下，在分析时，首先分析电性结构的层状特征，以此初步判定探测区域中是否存在电性结构间断面；其次，要由深入浅分析电阻率等值线，如果它们能够从探测剖面的深部向上延伸到浅部，且存在等值线的整体性错断、强烈弯曲或梯度带，则表明存在表征隐伏断裂的电性结构间断面；最后需进行水平追踪分析，以确定表征隐伏断裂的电性结构间断面的空间展布。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。