Surface Gravity on the Horizon of η- ξ Spacetime

We investigate the two methods of defining the surface gravity ,κ on the horizon, which are the metric definition and the definition given by the spacetime conformal method. It is found that the latter is of greater generality. By this method, we find that ,κ of η- ξ spacetime is equal to the exponent factor α in the coordinate transformation, which confirms the argument that η- ξ spacetime can be considered as the background spacetime for finitetemperature field theories. The reasons why the metric definition of ,κ can not be applied in η- ξ spacetime are presented.     

一种新的大学物理授课方法

本文提出了大学物理的一种新授课方法,旨在加强教、研结合,强化大学物理教学对学生综合素质的培养,同时提高教师的科研水平.     

平移非惯性系中的能量关系

探讨了平移非惯性系中质点组的动能定理、功能原理、机械能守恒定律的形式．