复合材料导电开关特性的研究

研究了掺Al或Ag微粉的聚丙烯（PE）基和聚二氯乙烯（PVDF）基复合材料的导电开关特性，发现在某一电场阈值（对应开关电压阈值Vk）附近，复合材料的电导率随外电场的变化而发生大幅度变化，还研究了掺入金属微粉的种类、体积比及颗粒度对Vk的影响，验证了量子隧道效应是复合材料导电开关特性的主要机理。     

The renaissance of continuum mechanics

Continuum mechanics, just as the name implies, deals with the mechanics problems of all continua, whose physical （or mechanical） properties are assumed to vary continuously in the spaces they occupy. Continuum mechanics may be seen as the symbol of modem mechanics, which differs greatly from current physics, the two often being mixed up by people and even sci- entists. In this short paper, I will first try to give an illustration on the differences between （modem） mechanics and physics, in my personal view, and then focus on some important current research activities in continuum mechanics, attempting to identify its path to the near future. We can see that continuum mechanics, while having a dominating impact on engineering design in the 20th century, also plays a pivotal role in modem science, and is much closer to physics, chemistry, biology, etc. than ever before.     

量子力学表象与群表示中线性代数方法的应用

对表象变换,群表示与线性代数中n维矢量空间中坐标变换的相似性进行了类比分析,结果表明：线性代数是二者的数学基础。物理规律对应着确定的群,群的不可约表示对H空间的态矢分类可方便地决定一个量子系统的结构。并对H2O的电子态进行了分析。