Atomic electronegativity interaction vector (AEIV) and atomic hybridization state index (AHSI) were used for establishing the quantitative structure-spectroscopy relationship(QSSR) model of 13C NMR chemical shifts of isodon diterpenoid compounds.

Atomic electronegativity interaction vector(AEIV) and atomic hybridization state index(AHSI) were employed here for QSSR model establishment of 13C NMR chemical shifts of carbon atoms in androstenones by stepwise multiple regression(SMR) and statistics.

Based on two dimensional topologic characterization,both atomic electronegativity interaction vector(AEIV)and atomic hybridization state index(AHSI)were developed for expression of chemical microenvironment and atomic hybridization state.

The calculation of crystal cell parameter, atom amount and crystal-plane's atom auount in nano-cordierite;

Relationship of crystal ionic radii and atomic number;

On atom s Transition Probability in the Radiation of Weak Broadband;

In the present work the polarizability and the hyperpolarizability of Be atom are obtained at the SCF level with basis-set expansion and analytic derivation method.

Determination of the contents of eleven metal elements in Folium Isatidis by flame atomic absorption spectro-photometry method;

Glycine,asparagines,glutamic acid and alanine in sepia were determined by HPLC-AccQ-Tag method and iron was determined by atomic absorption spectrophotometer.

We studied the interaction of two two-level atoms with two mode caving field and discussed the influence of the strength of two mode caving and atomic coupling on the squeezing of field,the ralation between squeezing and the second-order correction degree was revealed.