The line strengths of some 2p-3s and 2p-3d radiative transitions for the Na-like Cu, Y, and W have been calculated in the frame work of multi-con-figurational Dirac-Fock equations (MCDF) and the radiative transition theory consistent with MCDF.
Based on the interband transition theory of semiconductor, the values of h u→ t 1u (dipole forbidden) and h u→ t 1g (dipole allowed) optical band gaps are obtained from the analysis of the corresponding absorption coefficient α.
In the 1970's, Valentin Turchin and William Powers established two great cybernetic meta-theories named Perceptual Control Theory and Metasystem Transition Theory respectively, whose Constructivism Epistemology had more obvious characters such as special hierarchy, purpose and feedback conception that also enriched the content and argument of Constructivism.
The reaction path of the reaction H2O+H→OH+H2 was traced with Fukuis theory of intrinsic reaction coordinate by using ah initio MO method (at UMP4/6-31G** level)with energy gradient technique. On this basis, the dynamic properties along the reaction path were investigated by reaction path Ham iltonian theory. Then the rate constants of this reaction at different temperature were calculated by conventional and variational transition theory with tunneling correction.