The present invention relates to a method of treating demyelination diseases, such as multiple sclerosis, comprising administration of an atypical antipsychotic drug, such as quetiapine or an analog thereof, to a subject in need thereof. The method comprising the steps of displaying the subject image ; displaying at least one mask over the subject image wherein at least part of the or each mask extends to the periphery of the subject image ; and defining the selected region as those parts of the subject image not covered by a mask. The processor is also programmed to calculate a fault severity indicator using the voltage and current data, identified rotor-fault related harmonics, and motor specifications, analyze the fault severity indicator to determine a possibility of rotor fault. Another type of tensile strain quantum well structure having four kinds of layers may be employed by adding another layer to the tensile strain quantum well structure having three layers. The pulsed light emitted from the ultra-short pulse fiber laser 22 is converted into a relatively flat super continuum over a broad band of approximately 1200 nm to 2000 nm by chromatic dispersion in the course of transmission through the broadband optical spectrum-generating optical fiber 24.