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But, most of the traditional mushroom structures are restricted to only single EBG frequency design. In this thesis, we propose a novel concept about the interlaced periodic arrayal of the mushroom structure with the suspending microstrip line. By the simulation and measurement result, it is verified that the mushroom structure with the suspending microstrip line can reveal multi-band EBG characteristic.

而传统的蕈状结构的应用,多半只有操作在单一频率的电磁带隙特性,而本论文就针对了蕈状结构结合悬置微带线架构的电磁带隙特性研究,并提出了一种新的穿插周期排列的概念,透过电路模拟与实作量测的验证,我们成功的让蕈状结构结合悬置微带线的架构展现出多频电磁带隙的特性,并且,我们利用了这一个新概念设计了一种新型的微波电路。

Based on electro-characteristic and double electric layers models, directional mechanisms of soy protein molecular are analyzed for the first time on DC heating condition. After the main factors which effect soy protein gels transparency and strength being studied on DC heating condition, the different affects on soy protein gels transparency and strength by DC heating and water bath heating are analyzed and compared, and the transparent mechanisms of soy protein gels are further explored. In addition to temperature action as water bath heating, DC heating is added as electric field directional action. As a results, heating rate is increased. Directional range degrees of soy protein molecules are raised. These advantage the increase of soy protein gels transparency and strength. Microstructures of soy protein gels forming on DC heating condition are observed by SEM and the results showed that ordered structure of transparent soy protein gels on DC heating condition is more ordered than that of transparent soy protein gels on water bath heating condition.

首次从大豆蛋白的电特性和双电层模型上分析了直流电加热条件下,大豆蛋白分子定向的机理;通过对直流电加热条件下影响大豆蛋白凝胶透明性和强度主要因素的研究,分析和比较了直流电加热与水浴加热对大豆蛋白凝胶透明性和凝胶强度的不同影响,又进一步探讨了大豆蛋白凝胶透明的机理;直流电加热除了水浴加热中的温度作用以外,又增加了直流电场的定向作用,提高了加热速率,提高了大豆蛋白分子定向排列的程度,有利于蛋白质凝胶透明性和强度的提高;利用SEM对电场下大豆蛋白凝胶微观结构的观察,进一步证明了直流电加热比水浴加热形成的透明大豆蛋白凝胶微观结构具有更高的有序性。

Using DC and AC poling methods, three groups of polarized PZT/P 70/30composites have been prepared by poling only the ceramic phase(1), both ceramic and polymerphases in the same(2) and opposite(3) directions. Piezoelectric coefficients of group 1 compositesincrease as the PZT content increasing, while for group 2 composites, the piezoelectric coefficientschange the sign with increasing PZT content because piezoelectricity of copolymer is increasinglycompensated by that of PZT, and PZT content for zero-〓 isn't that for zero-〓. The experimentdata of both group 1 and 2 composites agree well with EMT-Shin model.

对复合材料的压电性能:只极化PZT粒子相的复合材料的压电系数随陶瓷分数的增大而增大,PZT粒子相与共聚物基体同向极化的复合材料的压电系数由于两相效应的部分抵消,随陶瓷含量的增大,发生符号的改变,且〓和〓零点不重合,它们与EMT-Shin模型都符合较好;而两相反向极化的复合材料的压电系数由于AC反向极化会导致陶瓷相极化程度的下降,导致实验值和理论预期偏差较大,尤其在PZT粒子高含量区。

To study the animal model of experimental autoimmune myasthenia gravis induced with extract from electric organ of Narcine timilei in rats.

目的 从丁氏双鳍电鳐的电器官分离乙酰胆碱受体免疫大鼠,建立实验性自身免疫性重症肌无力动物模型。

Motive:Extracting pure AchR from American Torpedo California electric organ, immuning Lewis rats actively, duplicating EAMG animal model.

中文摘要:目的:从美国加利福尼亚电鳐的电器官中提取纯化乙酰胆碱受体,主动免疫Lewis大鼠,复制实验性自身免疫性重症肌无力动物模型。

Establishment of EAMG model in rats First, extracted rough N2AchR from crassinarke dormitory Takagi electric organ and mixed it with CFA in the same amount, and then immunized for 3 times by multiple injecting antigen liquid contained N2AchR 0.5 ml/rat on tails, feet and backs of rats.

大鼠EAMG模型建立从电鳐电器官中提取N2AchR粗提物,N2AchR粗提物和完全福氏佐剂等量混合,模型组大鼠尾根部,足垫部,背部皮下多点注射上述含N2AchR抗原液0.5ml/只,分别于实验的第1日、第14日、第30日共免疫3次。

Global atmospheric electricity model is the circuit between atmosphere and surface. In lower atmosphere, the main sources of electric current within the model are thunderstorms, which are considered as vertical electric dipoles.

全球大气电模式是指大气和地表构成的闭合回路,其中考虑雷暴为主要充电电源,并将雷暴作为一个垂直电偶极子来考虑。

The lead-less piezoelectric ceramic composition is prepared through sintering at relatively low temperature, say, 1190 deg.c or even lower, and has good piezoelectric characteristic, practical plane electromechanical coupling coefficient kp, high Curie point and no lead and lead compound contained.

本发明的制备工艺能在较低温度下,如1190℃或更低温度下烧结无铅压电陶瓷组合物,使制备的无铅压电陶瓷具有好的压电性、可实用的平面机电耦合系数kp和高的居里温度,制备工艺过程中不含铅或铅的化合物。

R peak of BNT-BKT ceramics doped with Nd_2O_3 became wider than the basic ceramics without Nd_2O_3. All the ceramics are relaxor ferroelectrics proved by Curie-Weiss law measured at 10 kHz. Otherwise, d_(33) and K_p took on increasing trend and then decreasing trend.

Nd_2O_3掺杂后的陶瓷介电常数整体趋势随Nd_2O_3掺杂量的增高而降低,介电峰呈现更加宽化的趋势,并且从10kHz下的居里-外斯关系图得出在研究范围内所有陶瓷样品均为驰豫铁电体;随Nd_2O_3含量的增加,d_(33)和K_p呈先升高后下降的趋势。

Optical fiber communication is transferring form point-to-point transmission to mesh network. Traditional optical-electronical-optical transformation limits the data rate and adds the cost. With reconfigurable optical add/drop multiplexer for signal switching and routing, the OEO transformation can be bypassed, reduceing equipment size and cost.

光纤通信由点到点传输向网格化发展,传统的光—电—光转换过程限制了通信速率并导致成本增加,采用可重构光分叉复用器进行光交换和光路由,可以省去光—电—光转换过程,缩小尺寸和降低成本。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。