超导体

The concept of mean ionization potential of crystal is proposed, and the of Oxide Superconduetors is investigated in this paper.

本文提出了平均电离势的概念，并对氧化物超导体的平均电离势进行了研究。

A 3 kilojoule electrical impulse has the potential to lift several hundred kilograms, so in theory a track with several coils that were pulsed in a equence could lift and carry along a load, such as a train: MagLev technology without superconductors!

例如这样的火车：不用超导体的磁悬浮。

The improvement of performance of HTS makes its application in magnetic levitation and other areas become easier.

同时，高温超导体性能的不断提高，为高温超导在磁悬浮及其他方面的应用开辟了广阔的前景。

This article is to study the Lorentz force for various current and magnetic field as function of temperature on high-temperature Superconductor YBCO.

中文摘要本论文的主要目的在研究高温超导体YBCO样品在不同电流、不同磁场大小之下，罗伦兹力与温度的关系。

We analyze vortex motion and noise spectrum with Lorentz force in type Ⅱ superconductors (T0K) by numerical simulation.

数值计算了Ⅱ类超导体(T =0K)中磁通在洛伦兹力作用下的运动和噪声。

Because of the anisotropy of HTS, AC loss and the critical current of HTS tapes depend not only on the strength of magnetic field, but also on the orientation of the applied magnetic field.

由于高温超导体具有较强的各向异性，在外磁场中高温超导带材的临界电流与交流损耗既依赖于磁场的强度，又与磁场的方向有关。

Crystal lattice constants are close to other experiment results. Three kinds of chemical bonds exist among Mg and B atoms, between magnesium and boride is ionic bond and metallic bond is the predominant interaction in the layer formed by magnesium atoms. A strong covalent bond in the form of sp2 hybrid between boride atoms is the most important factors which can affect the transition temperature of MgB2. Population analysis clearly shows that electrons are transferred from Mg to B, as a result, the electron-phonon coupling in the layer of B is very strong.

规范保守赝势的计算结果表明，晶格常数与实验值误差在很小的范围内，分析了引起MgB2(001)面结构超导转变时电子浓度和偏态密度的变化情况，发现构成该超导体结构的成键有3种，着重从结构的电子浓度变化分析了其超导特性，六角蜂窝状结构中硼原子间相互作用为sp2杂化的共价键，镁原子和硼原子之间是离子键结合，镁原子层是金属键结合，镁原子的价电子部分转移到硼原子的pz轨道，部分电子为镁原子层共用。

The minium quench energy of the hybrid superconductor is larger than that of the NbTi superconductor, the stability has been improved greatly.

研究结果表明NbTi/Bi2223复合超导体的最小失超能和失超传播速度均位于NbTi和Bi2223/Ag之间，稳定性有了很大提高，与理论研究结果相吻合。

At the same time it can also be used to conduct multi-faceted polished, such as film and superconductor.

也可用于同时进行多面的抛光，如对薄膜和超导体。

The directly application of superconductor is great electric current with nonresistant transmition and the uniquely application is the superconducting electronics which is based on Josephson effect.

摘要超导体最直接的应用是无电阻传输大电流，最神奇的部分则是以约瑟夫森效应为基础的超导电子学技术。

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。