An exponential decay of the cluster number density n with time t is observed and the corresponding time constant is O f ≈ 1 1 × 10 - 4 s - 1; 基底表面的团簇数密度n随时间t指数衰减,衰减时间常量Of≈11×10-4s-1;
The electrons and the nucleus of the cluster are in the Coulombic field created by the external infinite lattice, and these interactions are included in the Hartree-Fock operator. The method is illustrated by considering the formation of the F center defect in NaF. 团簇中的电子和核都处于周围无限大晶格产生的库仑场中,相应的HartreeFock算符进行了修改。
In this paper, a new method based the fuzzy pattern recognition and fuzzy cluster techniques for the evaluation of communication equipment / system is proposed. 本文提出了用模糊聚类结合模糊模式识别(F模式识别)技术评估通信设备抗干扰性能的方法。
The nuclear sterility rice " Yu Ai ", which was discovered from the F2 population of " IR24xxxxxxxxxxxxxYu Zhong no.1 ", is a natural mutant with super dwarfness, cluster and complete sterility. 渝矮不育水稻是从IR24/渝中一号F2群体中发现的天然核不育突变体:特矮、丛生、雄性全不育。