高电荷态氪离子双电子复合过程的理论研究

本采用相对论的Flexible Atomic Code(FAC)程序计算类氯Kr^34 离子双电子复合的截面及速率系数，其中用n^-3标度律对速率系数作了外推。中我们还讨论了辐射分支比随不同共振峰的变化以及级联辐射的影响。     

二恶英

二恶英,dioxin的中译名,化学家们过去一直在“恶英”二字加“口”的左偏旁(另说只需恶字加口的左偏旁),因计算机字库一般无“口恶口英”二字而于近日废止。二恶英是两大类芳香化合物——二苯并二恶英与二苯并映喃的多氯代衍生物的总称,氯原子数1~10,其不同氯原子数及不同氯取代位置的同(congeners)总数为75+135=210种。     

KLn Dielectronic Recombination Process of B- Through He-like Cu Ions

The KLn dielectronic recombination processes of trapped highly charged B-like through He-like Cu ions are studied theoretically, and the theoretical results are used to analyse our previous experimental data at Heidelberg electron beam ion trap （EBIT）. The theoretical resonant positions agree with the experimental resonant positions to a precision of 0.4%, in comparison with the resonant positions of those highest peaks between theory and experiment. The experimental spectra are then fitted using a formula with the theoretical resonant energies and strengths, the result shows good overall agreement between theory and experiment over a wide electron energy range. The distribution of highly charged states is obtained from the fitting parameters.     

1998年全国高中学生化学竞赛（决赛）试题好得很

我对1998年全国高中学生化学竟赛（决赛）试题有以下看法,大胆提出来,供竟赛组织者和今后命题人参考。