[Penetration of external thermal perturbations into homeothermic organisms, part II (author's transl)].
The penetration of external thermal perturbations into parts of the body with different surface curvatures is discussed. For areas with approximate rotational symmetry a theoretical treatment by means of the variation theory is possible.


RESULTS
the mean surface curvature on the rotation axis is constant. Therefore the solution of the partial differential equation given in part I can be applied without change, if the correct value of the mean surface curvature of the body part is used. Also for an exponential form of alteration of the heat loss a solution is deduced. Combining small parts of sudden and exponential changes of heat loss it is possible to approximate almost any reasonable type of external thermal perturbation. Superimposing single solutions with different parameters allows then a complete solution of the problem. The importance of the theoretical results in view of homeothermia is discussed.
D000818:Animals; D055592:Biophysical Phenomena; D001703:Biophysics; D001830:Body Surface Area; D001833:Body Temperature Regulation; D006801:Humans; D008433:Mathematics; D008954:Models, Biological
Das Eindrigen äusserer thermischer Störungen in den Körper homoiothermer Lebewesen, Teil II.