With both the spacing between the winding and the core and the nonuniform distribution of magnetic field in the crosssection of the core being taken into account, a formula for the core volume of a toroid magnetic switch is deduced.

Relationship between heart volume and its extension incidence with obese degree in simple obesity children;

Study on several different regression equations of predicting the heart volume of the simple obesity in Kaifeng district of Henan;

A study on radiologic measurement of the heart volume of the Kazak and Han youngster in Xinjiang;