Through theoretical analysis and numerical simulations, the walk-off effect between sum-frequency pulse and pump pulse caused by Group Velocity Mismatch (GVM) was discussed.

There is interaffectve between cognitve style and spatial distance effect.

Experimental results show that C4-C14 bond of cyclopentadiene-menadione adduct is weakened by the steric effect of its angular methyl group through the crystal structural analysis.

The difference in flotation capacity may be ascribed to the inductive and steric effects of the substitution groups bonded to nitrogen atom on amine molecules.