perturbation of semi-group

The existence and uniqueness of solution for generalized vehiculars traffic equations is proved which using the perturbation theory of semigroups.

利用半群扰动理论证明了一般型车辆运输方程解的存在唯一性。

Presents the radial change and trend of the ground tempera- ture,and the heat influencing radius of buried pipes in the process of GSHP.

通过分析获得在武汉地区土壤源热泵运行时,埋管周围地温特性沿径向的变化规律以及埋管的热扰动半径。