超导体

In the experimental research, the levitation force of a HTS above a permanent magnetic guideway was first investigated in the case of zero-field cooling. The hysteresis of the levitation force curve and the interaction between a HTS and the applied magnetic field were explained by the Bean model, and the effect of the measuring precess on the levitation force was further analyzed.

实验研究中，首先研究了零场冷条件下高温超导体在永磁导轨上方的悬浮力特性，借助于Bean模型分析了悬浮力曲线的磁滞特性，阐述了高温超导体与外磁场间的相互作用原理，在此基础上进一步分析了悬浮力测试过程对悬浮力测试结果的影响。

The levitation force and the lateral force of a HTS above the experimental permanent magnetic guideway were calculated by this method.

计算中考虑了高温超导体的各向异性及外磁场对超导体临界电流密度的影响。

Tounderstand its superconductivity, it is essential to study the bondstructure and electronic states in charged C〓. Based on a tight- binding model and the group analysis, we depict in detail the bondstructure and electronic states of charged C〓, and explain the split ofenergy levels and irreducible representation.

富勒球状碳家族的发现已在化学和物理学中形成了新的研究领域，特别是碱金属掺杂的〓还是Tc较高的超导体，国内外已形成了〓的研究热潮，实验表明，C〓超导体主要来源于电子〓声子相互作用，这要求对C〓的电子态和晶格振动有深入的研究。

This property of complete magnetic resistance can be used to levitate the super conductor in a magnetic orbit.

超导体的磁性与导体不同，在临界温度下，它具有将磁通完全排出体外的特征，利用这种完全抗磁性，可使超导体在磁轨道上悬浮起来。

Finally, the effect of the interaction among HTS on the levitation force and the lateral force was investigated.

最后，就组合超导体中超导体间的相互作用对悬浮力与导向力的影响进行了研究。

In chapter five, it is founded in measuring the magnetic hysteresis loops withvarious field sweep rates that the penetration field of the high temperaturesuperconducting sample depends on the field sweep rate.

在第五章中，我们在实验中发现，在高温超导体样品变磁场扫描速率磁滞回线测量时，样品的完全穿透场与磁场扫描速率相关，这也是高温超导体磁弛豫的另一表现。

Here two kinds of measurement ways are presented and the nonlinear curve of ρ(7) in the Bi2223/Ag superconducting multifilament tape has been measured.

从定性和定量两个方面分析了低温超导体与高温超导体在失超期间产生焦耳热的不同。

This crossover superfluid has many characteristics that are similar to these superconductors," he explains."We hope this superfluid system is easier to understand, and that we can then project that understanding into a better understanding of superconductors.

我希望这种交叉超流体的性质与超导体的性质很相似，我们希望这种超流体系统更容易理解，这样就可以进一步加深对超导体的了解，他说。

The history and fundamental properties of HTSC, including crystal structure, transport properties, pairing symmetry, psudogap, and stripe phase, were reviewed in Chap.

第一章综述了铜氧化物高温超导体，特别是电子型高温超导体的研究历史和一些基本性质，包括晶体结构、输运性质、超导序参量对称性、赝能隙和条纹相等。

The author prepared bulk SmBaCuO single crystals with 5×5×5mm〓 by MTG method. The SmBaCuO crystals were proved by X-ray diffraction and X-ray back-reflection Laue technique. SmBaCuO crytal became 90K zero resistance superconductor by the study of the relation of transition temperatures and heat treatment conditions.

采用MTG法及其它类似的方法制备的YBCO超导体的小样品具有很好的超导电性能，但要使YBCO超导体获得实际应用，必须制备超导电性能优异的大块YBCO超导材料，采用籽晶诱导技术是制备高性能大块YBCO超导体的有效方法，因此，制备较大尺寸高质量的〓〓单晶是籽晶诱导技术成败的关键，作者用MTG工艺制备了尺寸达5×5×5mm〓的大块〓单晶，X-ray衍射及X-ray劳埃像法证明MTG法制备的〓晶体具有很好的单晶特性。

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。