Changes of Cu, Zn, Fe, and Ca contents in hair during pregnancy;
孕期发中铜锌铁钙含量的动态变化
This paper studies its origin and maintains that it comes from the word "bobo"(发发), which describes the sound of bounding and tail swinging of fishes.
探讨它的来源,可以认为它是由描摹鱼儿摆尾跳跃之声、貌的"发发"引申、发展而来的。
The effect of the defect mode on the spontaneous emission power of a dipole embedded in the photonic crystal is explored.
应用传输矩阵法研究了一维有限光子晶体在掺有缺陷和不掺缺陷情况下的电磁模式密度和电场分布,讨论了缺陷模对电偶极子自发发射功率的影响。