【摘 要】
：
By correcting some primary parameters in the semi-classical Deutsch-Mark (DM) formula, this paper calculates the absolute single electron-impact ionization cros
【机 构】
：
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China“,”Changchun Ins
论文部分内容阅读
By correcting some primary parameters in the semi-classical Deutsch-Mark (DM) formula, this paper calculates the absolute single electron-impact ionization cross sections of atoms N, Cu, As, Se, Sn, Sb, Te, I and Pb from threshold to 10000 eV. The calculated cross sections are compared with available experimental data and other theoretical results. An excellent agreement was achieved between the calculated and measured cross sections for these atoms over a wide range of impact energies.
其他文献
该品种是河北省石家庄地区农科所育成。其亲本组合是邢台6871×(晋68-389×辽632-125)F_4。1990年通过河北省预审定,并被列为河北省重点推广品种。当年推广面积40余万亩。产
字叶青系江阴市华士镇农科站和江阴市农科所用字红3号和若叶杂交选育而成的中熟晚粳。该品种具有高产稳产和优质抗病的特点。据1989年统计,在沿江地区南部种植面积已达41万
偃麦草作为普通小麦的重要近缘植物，具有很多普通小麦所不具备的优良特性。利用远缘杂交技术把偃麦草优良基因导入小麦中，不仅可以增加普通小麦的遗传多样性，还为小麦遗传育种创造了新的种质资源。山农31504-2、31504-3是从小麦-长穗偃麦草杂交后代中选育的矮秆种质系，本研究利用其与不同株高小麦材料杂交，分析其株高和节间长度构成，探讨小偃麦矮秆种质系的株高遗传效应，并利用分子标记技术对控制株高性状的Q
This paper develops a Fortran code which is capable to construct the simplest LS eigcnfunctions for desired symmetry and determine all permitted atomic LS spect
This paper studies a new conserved quantity which can be called generalized Mei conserved quantity and directly deduced by Mei symmetry of Birkhoff system.The c
We study the effect of incubation period on epidemic spreading in the Barabasi-Albert scale-free network and the Watts-Strogatz small world network by using a S