Conduction of fluctuating heat flow in a wall consisting of many layers

Summary

Van Gorcum¹) has pointed to interesting and important analogies between the theory of a passive four-pole and the conduction of heat waves through stratiform bodies. This paper generalizes in certain regards van Gorcum’s ideas and draws their consequences for the case of a solid, bounded by two infinite parallel planes and consisting of any number of lavers made from different materials.