Based on the nonlinear kinetic equation of coupling electromagnetic field,temperature field and mechanical field,physical equation,geometrical equation and electrodynamics equation of the current-carrying plate and shell,the normal Cauchy form nonlinear differential equations,which includes eight basic unknown functions in all were obtained by means of variable replacement method.

The magneto-elastic effects in a thin current carrying conical shells under the combined action of electro-magnetic field and mechanical load are studied based on the nonlinear magneto-elastic kinetic equations of revolutionary shells.

Five techniques have been introduced,the heat transfer enhancement for viscous liquids,novel baffle in shell side, petal_shaped fin steel tubes for the enhancement of vapor condensation, T_shaped fin steel tubes for the enhancement of liquid boiling, and the enhancement of a desublimation process by using zig_zag finned tubes, all of which have been or could be effectively used in industries.