An implantable medical device delivers neurostimulation therapy to a patient according to a parameter set, which may consist of a number of programs that are delivered substantially simultaneously. The signal generation device includes a frequency-control circuit and a voltage-controlled delay line. In a second step, the stream is hydrotreated to produce C6+ hydrocarbons. The storage management system is configured to process characteristics for the data flows to assign individual ones of the data flows to individual ones of a plurality of information classes and to assign individual ones of the data flows to individual ones of the data storage systems based on the information class assignments. The barrier film, which includes one or more of inorganic salt, silicate, borosilicate, and organic polymer, is coated onto one of the components prior to being combined with the second component. Then, defects having a predetermined size are extracted among the detected defects at extracting step, and a number of the extracted defects is counted as defect-number data.