磁熵变 1. Two kinds of room temperature refrigerant materials were studied in detail and their process, structure and the change ofmagnetic entropywere researched. 衡量磁致冷材料性能好坏的主要参量是磁熵变△Sm,目前无法通过直接测量得到磁熵
磁熵变 1. The magnetic measuremnet showed that the Curie temperature T_c increases from 246?K to 297?K by adding hydrogen atom, and the magnetic entropy changes around the Curie temperature decreases from -7. 磁性测量结果表明,H原子的引入,使合金的居里温度从246K提高到297K;同时,合金在居里温...
最大磁熵变 2) maximum 最大 3) maximal 最大 1. As the development of grid and data mining,advance an algorithm ofmaximalfrequent itemset data mining based on grid. 随着网格和数据挖掘技术的发展,提出了网格平台下最大频繁项集数据挖掘算法,采用数据库的垂直表示和基于前缀关系的等价划分,以等价类长度...
磁熵变 1. The magnetic measuremnet showed that the Curie temperature T_c increases from 246?K to 297?K by adding hydrogen atom, and the magnetic entropy changes around the Curie temperature decreases from -7. 磁性测量结果表明,H原子的引入,使合金的居里温度从246K提高到297K;同时,合金在居里温...
最大磁熵变 1. However, themaximal magnetic entropyaround TC decreases with increasing x values, which can be induced to the tolerance factor decrease, crystal lattice shrink and ferromagnetic coupling decrease. 2时,居里温度随着Na+离子掺杂量的增加而下降;由于Na+离子掺杂引起的容差因子的减小,晶格收缩...