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- The instrument is used for measurement of critical current of superconductor. 超导材料测试仪主要用于测试超导材料的失超电流。
- The magnetic leakage field in HTS transformer decreases the critical current of winding and increases the AC losses. 高温超导变压器的漏磁场严重会影响绕组中的临界电流和交流损耗。
- For current densities above the critical current density, the vortices (the small nonsuperconducting regions of the sample) start to slip or move. 一旦这些区域开始移动,能量就会损耗,也就是说材料的电阻值不再为零。
- The lithium salt-containing carbon anode is with better wettability and higher critical current density than the ordinary carbon anode. 含有锂盐的碳阳极的可湿性和发生阳极效应的临界电流密度值明显提高,可以防范阳极效应的发生,文中讨论了锂盐的作用机理。
- The process features low critical current density for activation and guarantees good adhesion of Cu strike directly plated on iron and steel workpiece to the substrate. 该工艺的临界活化电流密度很小,并能保证钢铁件上在较宽的电流密度范围内直接预镀铜而取得良好结合力。
- The critical current density of pure MgB2 is comparable to that of triniobium tin at low magnetic fields but falls off much more rapidly at higher fields. 在低磁场下,硼化镁的临界电流密度与三铌化锡相当,但是在较高的磁场下却下降得很快。
- The magnetic critical current by magnetic hystersis loop is dependent on field sweeping rate dH/dt and j(subscript c) determined by ac susceptibilty depends on the ac frequency. 交流磁化率法测量的临界电流与交流频率有关,使用高频测量时临界电流的判据较大。
- A number of detected electric elements are series and an electronic detective circuits are adopted in the critical current detector for JRT thermal overload protector. JRT型热过载保护器临界电流检测仪采用多受检器件串联及电子变换检测线路,提高了保护器大规模生产的效率和检测的准确度。
- According to the measured value of the intensity of magnetization, the critical current density J_c at 77 K and in zero magnetic field is as high as 20000 A/cm~3, as is calculated by using Bean model. 根据磁化强度测量结果按Bean模型推算,在77K零磁场下磁化J。 可达20000A/cm~2。
- The typical SEM microstructure of an excellent critical current density NbTi/Cu superconductor is found to have a very fine and clear subband as well as a homogeneously-distributed plate-like precipitate. 优异临界电流密度NbTi/Cu超导体的典型SEM显微结构呈现出很细微、清晰的亚带与均匀分布的片状沉淀相。
- A model considering the inhomogeneous critical current density distribution in the tape was proposed.Using this model, the over-current properties of the YBCO HTS tape was numerically simulated. 针对超导带材的临界电流分布不均匀的现象,提出分析这种不均匀性的物理模型,利用该模型对具有不均匀临界电流密度分布的YBCO超导带材的过电流冲击特性进行仿真计算分析。
- The critical current density and transition temperature were improved by chemical addition.The additive can improve the mechanical property and affect precursory powder thermal behavior of YBCO. 通过化学掺杂不但能提高YBCO的临界电流密度和临界转变温度等超导性能,而且能改善超导体的力学性能和影响晶体生长的热力学行为等。
- Currently one of the major challenges associated with making MgB2 a useful superconducting material is to increase its critical current density at higher magnetic fields. 要将硼化镁制成有用的超导材料,目前最主要的挑战之一,就是如何在较高的磁场下增加临界电流密度。
- She is a very discerning art critic. 她是位眼光敏锐的艺术评论家。
- Demand is outstripping current production. 现在需求逐渐超过了生产能力。
- I think the chastisement to him is too critical. 我认为对他的惩罚太严厉了。
- She broadcasts on current affairs. 她发表时事广播演说。
- The inquiry was critical of her work. 该项调查对她的工作提出了批评。
- Our language goes current along the seacoast. 我们的语言通用于沿海一带。
- Critical current of double arcing 双弧临界电流