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1.
本文用相对论多重组态Dirac—Fock方法得到了Ce~(+48)类氛离子的2p~5、3s、3p、3d组态的精细结构能级能量和跃迁波长值。  相似文献   

2.
用多组态Dirac-Fock和相对论组态相互作用的扩展优化能级方法,在计算中包含了Breit相互作用,真空极化,自能以及有限核质量修正,计算了核电荷数Z从6到80的类铍离子等电子序列的1s~22s2p ~3P_(0,1)的精细结构能级,磁偶极跃迁几率和振子强度.  相似文献   

3.
利用文献[7~11]给出的能谱观测数据,外推得到了AtⅨ离子2s2p~63d和2s~22p~54f组态的各径向积分参数。在组态相互作用理论下,用这些参数计算了ArⅨ离子各组态的能级及波函数分量,结果与有关实验数据符合得很好。  相似文献   

4.
根据全实加关联(FCPC)方法给出的波函数,计算了类锂Cu~(26+)离子1s~22p-1s~2nd(3≤n≤9)的跃迁能、波长和振子强度,将这些分立态的振子强度与单通道量子亏损理论相结合,得到该离子从1s~22p到电离阈附近高激发束缚态1s~2nd间的偶极跃迁振子强度以及相应连续态跃迁的振子强度密度.  相似文献   

5.
用HXR方法计算了ZrⅪ—RuⅩⅤ离子4s2,4s4p,4s4d组态能级.通过对各能级值随Zc(Zc=Z-N+1)沿等电子序列变化规律分析,找出了ΔE随Zc变化的一种新的拟合关系,运用该关系和笔者设计的FORTRAN程序对上述组态各能级进行了拟合计算.用类插的方法预测了TcⅩⅣ离子的上述组态能级值.给出了ZrⅪ—RuⅩⅤ离子4s2—4s4p,4s4p—4s4d组态跃迁谱线波长和相应的振子强度  相似文献   

6.
用多组态自洽场方法,结合我们提出的半经验拟合公式,计算了高离化态类钻Tc~(16+)离子3p~63d~9,3p~53d~(10),3p~63d~84p组态的能级、波长和振子强度,并与实验符合得较好。  相似文献   

7.
在对CaⅨ-LuLⅩ(20≤Z≤71)离子3s3p1P1能级结构的多组态相互作用理论HFR方法计算的基础上,分析了各种效应对等电子序列离子能级结构的影响,找出了能级沿等电子序列变化的规律性.预测计算了CaⅨ-LuLⅩ(20≤Z ≤71)离子3s3p 1p1的组态能级,进一步计算了CaⅨ-LuLⅩ(20≤Z≤71)离子3s21S0-3s3p 1p1的共振跃迁谱线波长、振子强度和跃迁概率,其中GaⅩⅩ,AsⅩⅩⅡ,TcⅩⅩⅩⅡ,PdⅩⅩⅩⅤ,TeⅩLⅠ和XeⅩLⅢ离子的3s21S0-3s3p1P1的共振跃迁谱线波长等有关数据为本文内插计算值,而BaⅩLⅤ-Lu LⅩ的所有结果纯属本文外推预测计算结果.  相似文献   

8.
利用多组态Dinac-Fock广义扩展平均能级(MCDF-EAL)方法系统地计算了铍LiI3d→2s,3p→2p,碳CIII2s3d1D2→2s21so,2p21S0,钙C I功43枯1D2→4s21So,钛TiIII3d23p→323F,3d4s3D→3d23F,铜CuII 3d94s1D2→3d10 1S0,锌ZnI 4s4d1D2→4s2 1s0和铯CsI 5d→6s等电四极矩E2光谱跃迁的能级间隔,跃迁几率和振子强度,计算中考虑了重要的核的有限体积效应,Breit修正和QED修正,所得结果和最近的实验数据及其它理论计算进行了比较。  相似文献   

9.
用多组态Dirac-Fock和相对论组态相互作用的扩展优化能级方法,在计算中包含了Breit相互作用,真空极化,自能以及有限核质量修正,计算了核电荷数Z从6到80的类铍离子等电子序列的1s^22s2p ^3P0,1的精细结构能级,磁偶极跃迁几率和振子强度。  相似文献   

10.
利用基于多组态Dirac-Fock方程的程序包GRASPVU,考虑电子关联作用,详细计算了类Mg离子3s2-3s3p跃迁(Z=20~24)的能级、波长、振子强度和能级寿命.研究表明,考虑了电子关联作用之后,所得的理论计算结果与实验值以及其它理论值符合得很好,同时对于分析已有的实验结果和指导拟开展的实验也很有意义.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

13.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

14.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

15.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

16.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

17.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

18.
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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