A quintic equation between the condensation contact angles and the boundary face concentration difference in Fe element has been proposed by measuring the condensation contact angles of melted coating alloys on base steels and analyzing the elements diffused between them. 通过测定熔融涂层合金对几种基体钢材的冷凝接触角,总结出冷凝接触角与Fe元素的界面浓度差之间存在有一定的五次方程关系;
In this paper, the effect of quintic nonlinearity on modulational instability in the anomalous dispersion regime of self focusing fiber from extended nonlinear Schrodinger equation is considered. 从带五次非线性项的扩展非线性薛定谔方程出发,重点考虑了五次非线性对常用的自聚焦光纤中反常色散区调制不稳定性的影响。
In the fifth section, we obtain some sufficient conditions under which a class of a planar quintic system has at most two limit cycles by transforming it into Abel equation. 第五章讨论了一类可化为Abel方程的五次多项式系统的极限环的个数,得到此类平面五次多项式系统至多存在两个极限环的充分条件。
Load distribution of axial fan along to the blade and blade height is put forward according to dynamic design method of quintic equation. 提出了轴流通风机沿叶片叶高的载荷分布,按五次方流型设计的方法。