排序方式: 共有29条查询结果,搜索用时 31 毫秒
1.
XPS shake-up satellite peaks (XPS shake-up) and HMO calculations of some conjugatedring carbon-hydrogen compounds have been reported. The shake-up spacing and probabilityusing HMO calculation accord with XPS experimental results. The relation between shake-up transition of the excited atom and its chemical activity, namely, the order of its atomicfree valence, has been established. 相似文献
2.
Substantial improvement of the self-consistent HMO theory, as recently developed by one of us, is made in the parametrization for heterobonds. The theory is extensively applied to a large scale of heteroconjugated molecules including rather complicated ones which are biologically important. The calculated molecular geometries and the wavelengths of optical absorption spectra are found to be in good agreement with experimental values. Examining the effect of inclusion of the -technique to this theory, we find that the calculated values of molecular geometries, electronic spectra and ionization potentials are little affected for most molecules. Dependences of the absorption wavelength and the adiabatic potential on the molecular geometry are also investigated. 相似文献
3.
WANG Gang 《Chinese Journal of Lasers》1994,3(6):529-532
Relativistic aspects of HMO¥WANGGang(PhysicsDepartmenf,UniyersityofElecfronicScience andTechnologyofChina,Cbongdu610054,China... 相似文献
4.
功能色素材料——苯重氮氨基偶氮苯类光度显色剂的研究罗小民周伟良孙培培吴斌才(华东师范大学化学系上海200062)关键词光度显色剂离解电子光谱HMO法中图分类号621.13功能色素材料包括光致变色、电致变色、热致变色和压敏变色材料以及光度显色剂等。这些... 相似文献
5.
6.
应用Hückel分子轨道法计算了15种三羟基荧光酮试剂分子的π电荷密度分布,确定了三羟基荧光酮分子中3个羟基离解的顺序、金属离子的配合位置和螯合物的结构。进一步讨论了取代基和反应介质对此类试剂分析性能的影响。 相似文献
7.
分析了美国HMO(Health Maintenance Organization)市场结构主要指标及部分医疗和社会经济指标对美国医疗费用的影响,采用1995-2007年数据,利用主成分分析(PCA)方法与BP神经网络构建预测模型,对美国支出在医院方面的医疗费用进行拟合及预测,预测结果与实际值之间的相对误差小于0.25%,表明可基于该模型考察在HMO市场结构影响下的美国医疗费用. 相似文献
8.
In this paper, the HMO model of scalar field in vacuum is developed using the covariant field theory, in which the so-called current density and mass density of optical fluid are obtained and analyzed. 相似文献
9.
在忽略了瞬逝波的条件下,证明真空中单色标量光场的光束截面的动量及其任一分量都与轴向坐标无关,为守恒量;文中还给出了动量衍射发散度的表达式。 相似文献
10.
在HMO近似内,利用图形收缩定理和Heilbronner定理,研究含有特定能级的共轭分子。讨论了判定这类分子的部分能级和构造具有某些特定能级分子的各种方法,并用少数例子作了演示。 相似文献