The present invention provides a component mounting sequence optimizing method, a component mounting device, a program for executing the component mounting sequence optimizing method, and recording medium in which the program is recorded, in the component mounting device with a component holding head capable of holding a plurality of components and having a component recognition camera. The substance can be incorporated into a shell of the hearing device and exhibit controlled migration through said shell and to the surface of the shell. The parameters can be used to deduce a variant of the dynamo-electrical machine, and to select open-loop and closed-loop control parameters which are associated with the variant. An image processor processes the image and determines the dimensions of the chunks based on the captured image. Also disclosed are methods for treating or preventing hypercholesterolemia and hypertriglyceridemia using the pharmaceutical compositions.