查询词典 Superconductor

The influence of sintering temperature and composition on the microstructure of Y-Ba-Cu-O superconducting ceramic prepared by reactive sintering was investigated. While the oxide powders react and sinter into the superconductor, transient liquid phase can disappear rapidly, and equilibrious liquid phase can promote the anisotropic growth of superconducting grains and isolate the grains.

本文运用X射线衍射、光学金相、扫描电子显微分析、热分析等材料研究手段研究了Y-Ba-Cu-O和Bi-Pb-Sr-Ca-Cu-O两个体系超导陶瓷的超导相与显微组织的形成过程，着重研究了液相在此过程中的作用，同时考察了显微组织与超导性能间的关系。

The average valence of copper in high temperature superconductor was determined by double iodometric titration,then oxygen content also can be calculated.

双碘滴定法是通过定高温超导氧化物中铜的平均价态，计算出氧化物中氧含量的一种方法。

The finding comes from a team of Japanese researchers, who report in the March 4 issue of Nature that the hydrocarbon molecule picene, ordinarily a semiconductor, becomes a potential superconductor when interspersed with an alkali metal such as potassium or rubidium.

这项发现来自于日本研究人员。他们在3月4日《自然》杂志上撰文称，一种叫苉的烃类原本是半导体，但在其中扩散过碱金属后就会变成超导体。扩散钾以后，这种材料的临界温度是相对&暖和&的18K（-255℃）。

Hysteresis characteristics in the current-voltage curves of MgB2 granular superconductor are reported and interpreted by the resistively shunted junction model in this paper.

本文研究了MgB2颗粒超导体电流-电压特性曲线上的回滞现象并用电阻分路结模型进行了初步解释。

Keywords superconductive materials;superconductor;electric power system;application

超导材料；超导电性；电力系统；应用

The SiC-doped MgB2 superconductor has been a hot spot in superconducting field due to its excellent superconductive properties.

SiC掺杂MgB2体系由于其优异的超导性能而受到普遍关注并成为超导领域中一大研究热点，但是目前的研究大多集中在SiC对MgB2超导性能的影响上，对SiC的加入对MgB2烧结过程的影响研究很少。

This quantity delineates the maximum amount of current that a superconductor can carry and still maintain zero resistance.

当电流的密度超过临界值时，涡流（品中没有超导作用的小区域）开始移动。

As the alternating current cycles back and forth, the resulting variation in the magnetic field sloshes these vortices around within the superconductor, losing energy as heat as they do so.

当交流电的电流发生周期性变化时，随之改变的磁场会使超导体内部的旋涡产生震荡，在此过程中部分能量会以热能的形式散失。

As the alternating current cycles back and forth, the resulting variation in the magnetic field sloshes these vortic es around within the superconductor, losing energy as heat as they do so.

当交流电的电流发生周期性变化时，随之改变的磁场会使超导体内部的旋涡产生震荡，在此过程中部分能量会以热能的形式散失。

In chapter two,based on the ultraviolet/infrared scale separation of the connection decomposition variables,we proposed that at the classic level the strong-coupling limit of the Yang-Mills theory vacuum behaves as a black hole with regard to colors.With this idea,we prove that there exists a dual superconductor solution for the strongly-coupled Yang-Mills theory,whose vacuum is made up of a many-body system of magnetic charges. A dual Abelian-Higgs model,with a Higgs vacuum constant added has been derived from the gluonic field part of SU(2)QCD based on the Faddeev-Niemi decomposition and random-order assumptions.The scale potential Vhas the Mexico-hat form.

第二章基于联络分解变量的紫外/红外分离，提出杨-米尔斯理论真空的强耦合极限表现为一个经典场论意义下色空间的黑洞，并证明在强耦合极限下该理论存在对偶超导体解，其非微扰真空可由磁荷的多粒子体系构成，借助规范场的Faddeev-Niemi分解，由SU(2)QCD的胶子部分推导出一个含有黑格斯真空常数的有效对偶阿贝尔-黑格斯模型，标量势V具有Mexico-hat形式，计算出Ginzburg-Landau参数为κ=/=(8/9)/(1/2)，，这与最近T。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。