This paper focuses on direct determination of anions in environmental water samples by reversed-phase ion-pair chromatography and effects of Se on the growth of vegetable seedling under Cr stress.

For concrete in compression zone a stress-strain relation for repeated axial compressive cyclic loading, is adopted instead of that for reversed loading.

The main conclusions of the studies are as follows: 1 Reversed Police Stress Questionnaires is divided into five dimensions according to the demand of psychometric index.