超导体

We obtained an estimate of the third critical field for cylindrical superconductors, and proved that, as the applied magnetic field decreases from the third critical field, superconductivity nucleates first at the surface of the cylinder where the curvature is maximal; and also gave a mathematical theory to describe the surface superconducting state.

我们获得了柱状超导体第三临界场的估计，证明了当外磁场从第三临界场减弱时首先在柱面的曲率最大处出现超导性；给出了描述表面超导态的数学理论。

Raymond's response:"On the day *I* go to work for Microsoft, faint oinking sounds will be heard from far overhead, the moon will not merely turn blue but develop polkadots, and hell will freeze over so solid the brimstone will go superconductive."

Raymond 这样回答：&要我替微软工作也行，不过要等到动物也能哼哼出美妙的乐章，月亮能发出五彩斑斓的光芒，地狱之门永远关闭，而普通的硫磺石也能变成超导体。&

Unlike the low temperature superconductors, heat accumulation in a specific volume is more likely the main cause of quenches for the high temperature superconductive coils.

不同于低温超导体，在高温超导线圈中，一定体积内的热积累是造成失超的较主要原因。

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。

Using Mg powder and B powder as the main raw materials, MgB2 superconductors were fabricated under different sintering methods.

以Mg粉和B粉为主要原料，采用两种烧结方法制备出MgB2超导体。

A series of excited state energies which corresponded to Cu-O four bonds structure of CuO〓 plane under the balance geometry structure were calculated.

通过理论计算可知几个Cu-O结构平衡几何构型下的Cu、O原子间距、Bi系高温超导体CuO〓面的结构参数，以及Cu在CuO〓面内的价态形式等。

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。

These phases are neutral analogs to the superconductors, but with greater complexity in their order.

这些氦-3新相是超导体的不带电类似物，但次序更加复杂。

Extreme pressure opens fertile ground for the formation of novel materials, as evidenced by the new phase transitions, new superconductors, new chemical bondings, and ultimately the new Periodic Table, one which has the same elements but drastically altered chemical reactivities and physical behaviors.

极端高压条件下可以合成各种奇异的新物质，例如新的相变过程、新的超导体、新的化学键合，甚至新的元素周期表，因为同一种元素在极端高压下的化学反应和物理性质将完全不同。

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。